JP2019049144A - Connection structure of faucet to wall rear side pipe - Google Patents

Abstract

To provide a connection structure of a faucet to a wall rear side pipe allowing simple assembling work of horizontally placing a faucet body without forming a gap between a cover and a wall surface, with as little number of components as possible.SOLUTION: A connection structure has: water passages a, b inside; an upstream side connection part 6 for connecting to wall rear side pipes C, h in the upstream side; and a downstream side connection part 7 with at least a part protruded from a wall surface S and for connecting a faucet 8 in the downstream side. The downstream side connection part 7 comprises: a connection fitting 1 having a male screw 9 and a clip locking groove 10 on an outer surface thereof; a clip 4 abutting on the wall surface for regulating a protrusion height of the downstream side connection part 7 from the wall surface S and locked to the clip locking groove 10; and a nut 16 having a female screw Q screwed to the male screw 9 of the downstream side connection part 7 and formed to abut on a wall rear surface by screwing.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a connection structure between a faucet and a pipe on the back side of a wall, and more specifically, instead of a type using an eccentric pipe, a faucet is attached to the wall surface side via a connection fitting. It relates to a connection structure between a certain faucet and a pipe on the back side of the wall.

  Conventionally, as a connection structure of this type, there is one shown in the following Patent Document 1, and the connection structure shown below is adopted.

(1) As shown in FIGS. 2 and 3 of Patent Document 1, the pipe 90 and the water faucet 20 are connected via the connector S.

(2) As the connector S, one having the rear connection portion 33 connected to the pipe 90 and the front connection portion 32 connected to the connection port 25 of the water faucet 20 is employed.

(3) Then, the front connection portion 32 is inserted into the through hole 11 of the mounting portion 10 from the back side, and the flange portion 31 of the adapter 30 which is one component of the connector S is attached to the back surface side of the mounting portion 10 via the packing 16 I am in contact.

(4) Moreover, the fixing member 60 which consists of a nut provided with the fixing rod 61 is employ | adopted.

(5) Then, the fixing member 60 is inserted into the through hole 11 from the front surface side of the mounting portion 10 with the sheet packing 17 in front of the mounting portion 10 and the mounting stay 70 in front of the sheet packing 17 interposed. .

(6) After the insertion, the fixing member 60 is screwed to the front connection portion 32 in order to fix the connector S to the mounting portion 10, and the fixing rod 61 is fixed to the mounting portion 10 through the sheet packing 17 and the mounting stay 70. The mounting portion 10 is held between the fixing rod 61 and the flange portion 31 while being in contact with the surface side of the mounting portion 10.

(7) In the conventional example, as shown in FIG. 4 of Patent Document 1, the surface 63 of the fixed rod 61 always protrudes by the same amount from the surface 15 of the mounting portion 10, The amount of advance to the surface 15 side is always constant, and a suitable mounting state of the water faucet can be obtained regardless of the thickness of the mounting portion 10.

(8) For that purpose, for example, there is no gap between the cover 23 (see FIG. 3 of Patent Document 1) covering the faucet main body 21 (see FIG. 5 of Patent Document 1) and the surface 15 of the mounting portion 10 It has become.

Patent No. 3458270 gazette

  However, in this conventional example, although it is devised that there is no gap between the cover 23 covering the faucet main body 21 and the surface 15 of the mounting portion 10, the number of parts used for that is extremely large, and the cost is high. In addition, there is a problem that the assembling operation using these components becomes very complicated because the number of parts is large, and the workability may be lowered.

  That is, the connector S, the fixing member 60, the mounting stay 70, and the lower stay 80 provided on the bottom surface of the faucet main body 21 prior to the mounting work, for example, are required as parts. is there.

  The connector S is composed of two parts, a pair of left and right adapters 30, 30 and a fixed stay 50 for fixing the two adapters 30, 30 at a desired pitch.

  Further, a packing 16 is provided on the back surface side of the mounting portion 10, and a sheet packing 17 is provided on the front surface side of the mounting portion 10.

  Further, for the assembling operation, the male screw 34 of the front connection portion 32 (the female screw 62 of the fixing member 60) in order to cause the surface 63 of the fixing rod 61 of the fixing member 60 to project by the same amount regardless of the thickness of the mounting portion 10 ( When screwing and fastening the patent document 1 (see FIG. 4), it is necessary to finely adjust the amount of screwing into the female screw 62 on the side of the front connection portion 32, which may take time and effort.

  The present invention has been made in consideration of the above-mentioned matters, and the operation of arranging the faucet body in the horizontal posture without creating a gap between the cover and the wall surface is as simple as the number of parts as possible. It is an object of the present invention to provide a connection structure between a faucet and piping on the back side of a wall which can be performed by a proper assembling operation.

In order to achieve the above object, the present invention has a water flow passage inside, has an upstream connection portion for connecting with piping on the wall back side on the upstream side, and at least a part has a wall on the downstream side A connection fitting having a downstream connection for connecting a faucet protruding beyond the surface, and having a male screw and a clip locking groove on the outer surface thereof at the downstream connection;
A clip that abuts against the wall surface to define the amount of protrusion from the wall surface of the downstream connection portion and is engaged with the clip locking groove;
A connection between a faucet and a pipe on the back side of a wall, comprising a female screw screwed to the male screw on the downstream side connection portion and a nut formed to abut the wall back surface by screwing. Providing a structure (claim 1).

Further, according to the present invention, a hanging nut screwing female screw is provided on the inner surface of the downstream side connection portion, a hanging nut having an external thread screwed on the hanging nut screwing female screw is provided, and locked to the flange of the hanging nut The faucet according to claim 1, further comprising: a cap nut screwed on the external thread of the water port on the faucet side, and an annular packing between the flange of the suspension nut and the water port on the faucet side. Providing a connection structure between the pipe and the pipe on the back side of the wall (claim 2).

  Further, according to the present invention, while a flange is provided on the downstream side of the groove for clip engagement in the downstream side connection portion, a flange for abutting on the flange of the downstream side connection portion is a water outlet on the faucet side. A locking member formed by bending a plate-like body, the flange provided at the downstream connection portion and the flange provided at the water conduit on the faucet side being in contact with the both The connection structure between the water faucet according to claim 1 and the pipe on the back side of the wall according to claim 1, wherein the flange is configured to be pinched and held by the locking member.

  Further, according to the present invention, a joint having a simple attachment / detachment mechanism is provided on the downstream side of the downstream side connection portion downstream of the clip locking groove, and the connection portion of the water outlet on the faucet side can be inserted and removed. The faucet according to claim 1, wherein the connection portion of the water inlet on the side of the faucet inserted in a free state is switched to a locked state rotatably coupled around an axis. The connection structure with the piping of (4).

  According to the present invention, the faucet and piping on the back side of the wall can be arranged with the smallest possible number of parts and with a simple assembling operation, with the faucet body arranged horizontally without any gap between the cover and the wall surface. Can provide a connection structure with the

  And, in the present invention, in assembling the clip to the connection fitting, the clip is disposed on the downstream side while a part of the downstream connection portion is projected from the wall back side where the pipe is located through the wall hole from the wall surface. Since it can be made to contact the wall surface in the state of being locked from the wall surface side to the clip locking groove provided on the outer surface of the connection part, the same amount always from the wall surface regardless of the wall thickness The connection fitting (downstream connection part) can be protruded through the wall hole only.

  Moreover, in the invention described in the conventional example, in order to make the surface of the fixing rod of the fixing member always protrude by the same amount from the surface of the mounting portion, the male screw of the front connecting portion of the connector is screwed into the female screw of the fixing member. While the adjustment operation may take time, in the present invention, it is a simple operation of only locking the clip in the clip locking groove while making at least a part of the downstream connection portion project from the wall surface. .

  Further, in the invention of claim 2, the metal fitting for connection, the clip, the nut, the suspending nut, and the annular packing are provided. In this case, a single connection fitting having a configuration in which the clip, the suspension nut and the pipe can be assembled at one time is used as a connection fitting, and a suspension nut is provided to be engaged with the flange of the suspension nut. The cap nut is attached to the connection fitting via the.

  Furthermore, according to the invention of claim 2, since the connection is made to the water outlet on the faucet side via the cap nut, the assembly work can be facilitated with a small number of parts.

  In the invention of claim 2, the suspension nut is connected by screwing between the male thread of the suspension nut and the female thread for suspension nut threading provided on the inner surface of the downstream connection portion while locking the cap nut to the flange of the suspension nut. The annular packing is brought into contact with the lower surface of the flange of the suspension nut by inserting the annular packing into the suspension nut from the wall surface side in the state of being positioned on the most downstream side of the metal fitting. The ring packing can be pinched between the flange of the suspension nut and the water outlet on the faucet side by screwing the male screw of the water outlet on the faucet side and tightening the cap nut, and the flange and water of the suspension nut It is possible to prevent water leakage from between the water outlets on the plug side.

  Further, according to the invention of claim 2, the sealability can be secured by using only one annular packing as the seal member, and it is not necessary to provide the seal members on both the front and back sides of the mounting portion as in the conventional example. The number of parts can also be reduced.

  In the second aspect of the present invention, one connection has the function of locking the clip, the function of connecting the pipe, and the function of connecting the faucet via the suspending nut integrally provided to the cap nut. It is only necessary to locate the metal fitting on the back side of the wall. In the above-mentioned conventional example, a fixed stay for fixing the adapter at a predetermined pitch is required as a connector in addition to the adapter, and the number of parts on the back side of the wall increases and the connection operation becomes complicated. Parts on the back side can be connected easily because only one connecting bracket.

  The same can be said for the parts on the front side of the wall. In the prior art, when installing the two parts of the fixing member and the mounting stay, it is necessary to carry out a complicated operation of connecting the fixing member to the adapter on the back side of the wall through the mounting stay. Only the easy screwing operation of the nut and the easy locking operation of the clip are required.

  Further, according to the invention of claim 3, the flange is provided on the downstream side of the clip locking groove in the downstream side connection portion, and the flange for abutting on the flange of the downstream side connection portion is the water outlet on the faucet side. Providing the locking member formed by bending the plate-like body, the two flanges being in contact with the flange provided at the downstream connection portion and the flange provided at the water outlet on the faucet side Since the holder is configured to hold it by pinching, the connection form on the faucet side and the connection metal fitting side is simple, and the workability of connection can be facilitated.

  Further, according to the invention of claim 4, a joint having a simple attaching / detaching mechanism is provided downstream of the clip engaging groove in the downstream side connecting portion, and a free state where the connection portion of the water outlet on the faucet side can be inserted and removed; Since the connection portion of the water inlet on the faucet side inserted in the free state is configured to switch to the locked state rotatably coupled around the axis, the faucet side and the connection metal fitting side The connection form is simple and the connection workability can be made easier.

BRIEF DESCRIPTION OF THE DRAWINGS It is whole structure explanatory drawing which shows the 1st Embodiment of this invention. It is a principal part structure explanatory view showing the above-mentioned embodiment. It is a front view which shows the clip used by the said embodiment. (A) is a front view which shows the modification of the clip used by the said embodiment. (B) is a front view which shows another modification of the clip used by the said embodiment. (A) is principal part structure explanatory drawing which shows the 2nd Embodiment of this invention. (B) is a perspective view which shows the locking tool used in the said 2nd Embodiment. (A) is principal part structure explanatory drawing which shows the 3rd Embodiment of this invention. (B) is a perspective view which shows the simple attachment or detachment mechanism used in the said 3rd Embodiment.

  Hereinafter, embodiments of the present invention will be described. The present invention is not limited by this.

  1 to 3 show a first embodiment of the present invention using a hot and cold water mixing valve that requires two water inlets of hot water and water. The present invention can be applied to a single faucet having one faucet on the faucet side.

  In FIG. 1, reference numeral 8 denotes a thermostat-type water mixing valve (water faucet), and a thermostat-type cartridge A for adjusting the temperature of the water is incorporated in one end of the water faucet body B, and the other end of the water faucet body B The switching member D is incorporated in the housing.

  The cartridge A internally has a water side valve seat and a hot water side valve seat (not shown), and a coaxially axially movable movable valve (not shown) so as to selectively contact and separate these two valve seats. Is provided movably, and a hot water inflow chamber and a hot water mixing chamber are respectively provided on the upstream side and the downstream side of the movable valve body, and the hot water / water mixing is performed so as to bias the movable valve body in the direction approaching the hot water side valve seat. A temperature sensitive spring (not shown) made of a shape memory alloy is provided on the side of the chamber so as to oppose the biasing force of the temperature sensitive spring to bias the movable valve body in a direction approaching the water side valve seat. A bias spring (not shown) is provided on the side of the hot water inlet chamber, and hot water or water is spouted by rotation of the temperature control plug F in conjunction with the rotation operation of the temperature control handle E. Switching of water spout / water stop by operation of the switching handle G interlocked with the switching member D, flow rate Integer, and is configured to shower / Curran switching is performed.

  The faucet 8 includes a cover K that covers the faucet body B.

  The present invention can be applied to a thermostat-type hot and cold water mixing valve using a wax type temperature sensing portion instead of the shape memory alloy spring type temperature sensing portion, and the present invention can also be applied to a single water faucet as described above.

  The characteristic configuration will be described below.

  In FIG. 1, the connection structure between the water inlet 14 on the faucet 8 side and the water side pipe C on the back side of the wall W and the connection structure between the hot water outlet 14 'on the faucet 8 side and the hot water side pipe h are identical. Therefore, as shown in FIG. 2, the connection structure between the water inlet 14 on the faucet 8 side and the water side pipe C on the rear side of the wall W will be described.

  1 and 2 show a state in which the cap nuts 3 and 3 are completely tightened, and in FIGS. 1 and 2, the connection structure between the faucet 8 and the water side pipe C on the back side of the wall is a fitting for connection It consists mainly of 1, a hanging nut 2, a cap nut 3, a clip 4 and an annular packing 5.

  The connection fitting 1 has an upstream connection 6 and a downstream connection 7 and has a water passage inside. In this embodiment, the connection fitting 1 is configured in a substantially L shape in plan view.

  The upstream connection portion 6 is provided on the upstream side of the connection fitting 1 to connect with the water pipe C on the back side of the wall W, while at least a part of the downstream connection portion 7 from the surface S of the wall W It also protrudes. The wall W is located between the stud (not shown) and the faucet 8.

  The wall W has a water side wall hole (round hole) H and a hot water side wall hole (round hole) H ′ and has a wall thickness d of appropriate dimensions, while the water passage is flat from the upstream side toward the downstream side It is bent at a right angle in vision.

  The water flow passage portion a from the connection point between the upstream connection portion 6 and the water pipe C is parallel to the wall surface (wall back surface) S, and the water flow passage portion a strikes the corner of the inner surface of the connection fitting 1 and It bends 90 degrees to the side of the water side wall hole H and becomes a water passage portion b.

  Further, the downstream side connection portion 7 has an external thread 9 and a clip locking groove 10 on the outer surface thereof, and a hanging nut screwing female thread 11 on the inner surface thereof.

  The downstream side connection part 7 is cylindrical, and has the opening part 7a (refer FIG. 2) in which the said hanging nut screw-wearing internal thread 11 is formed in the internal peripheral surface.

  On the other hand, the clip locking groove 10 is annularly formed on the outer peripheral surface of the opening 7a.

  Further, the male screw 9 is positioned immediately upstream of the clip locking groove 10.

  The suspension nut 2 has an external thread 12 screwed to the internal thread 11.

  The cap nut 3 is engaged with the flange 13 of the lifting nut 2 and screwed to the male screw 15 of the water inlet 14. In this embodiment, the maximum diameter of the outer periphery of the cap nut 3 and the inner diameter of the wall hole H are set to substantially the same size, and the cap nut 3 can pass through the wall hole H.

  The clips 4 and 4 are for defining the amount of protrusion from the wall surface S of the downstream connection portion 7, and in this embodiment, are disposed on the water side and the hot water side, respectively. The water side clip 4 and the hot water side clip 4 have the same shape. The clip 4 is a plate-like member made of metal (for example, stainless steel) and has a predetermined thickness m.

  The clip 4 used in this embodiment is formed in a reverse U shape in a front view as shown in FIG. That is, the clip 4 has an opening Z at the center of the plate-like member. The opening Z has a dimension substantially equal to the outer diameter of the clip engagement groove 10 so as to be engageable with an annular clip engagement groove 10 from the upper side, for example.

  If necessary, the clip 4 may be fitted into the groove 10 from all directions in the lateral, diagonal, and lower directions with respect to the groove 10.

  Then, in a state where the cap nuts 3 and 3 are completely tightened and the faucet main body B is attached to the wall W, as shown in FIG. 2, the tip surface N of the opening 7 a of the downstream connection portion 7 (FIG. 2 Reference) is configured to project from the surface S of the wall W by a predetermined amount of projection.

  Further, the annular packing 5 is provided between the flange 13 of the suspension nut 2 and the water inlet 14 on the faucet side.

  In this embodiment, as shown in FIG. 2, the annular packing 5 has a substantially U-shaped cross section and has an inner circumferential surface on which the annular groove 5 a is formed.

  A nut 16 has a female screw Q screwed to the male screw 9 of the downstream side connection portion 7 and is formed to abut on the back surface of the wall by screwing. And a large diameter flange 16c having an annular horizontal surface 16b formed to abut on the back surface of the wall, and a ring portion 16d loosely fitted in the wall hole H.

  In this embodiment, the outer peripheral surface of the ring portion 16d is formed in a tapered surface whose outer diameter decreases toward the downstream side, and the ring portion 16d is a boundary between the ring portion 16d and the annular horizontal surface 16b. It is configured to abut on the annular inner circumferential surface X (see FIG. 1) in the most upstream portion of the wall hole H in the portion. The connection fitting 1 has a nut 16 rather than the case where components of different types of the connection fitting 1, the nut 16 and the suspension nut 2 with the cap nut 3 are separately transported (as single item handling) to the transfer destination. If the suspension nut 2 with the cap nut 3 is assembled in advance in the factory and transported as a set, there is an advantage that the time and effort for assembling at the construction site can be reduced and it contributes to the workability. In particular, conveying the parts 1, 16, 2 (3) as one set can also contribute to the prevention of part loss during conveyance.

  Then, with both the nuts 16 and 16 and the hanging nuts 2 with the bag nuts 3 and 3 attached to the connection fittings 1 and 1 connected to the pipes C and h, the bag nuts 3 and 3 from the back side of the wall The tip end portions N and N of the openings 7a and 7a of the downstream connection portions 7 and 7 are made to project from the wall surface S by being positioned on the wall surface side through the wall holes H and H '.

  At this time, the annular horizontal surfaces 16b and 16b of the nuts 16 and 16 are brought into contact with the back of the wall while adjusting the tightening condition of the nuts 16 and 16 appropriately, and the annular packing 5 5 is inserted until it abuts on the lower surfaces of the flanges 13 and 13 of the lifting nuts 2 and 2.

  Subsequently, the clips 4, 4 are engaged with the clip engaging grooves 10, 10 formed on the outer peripheral surfaces of the openings 7a, 7a protruding from the wall surface S.

  Subsequently, the faucet body B is attached to the wall W in a state where the cover K, the temperature adjustment handle E, and the switching handle G are attached. At this time, the male screw 15 of the water inlet 14 and the male screw 15 of the hot water inlet 14 'are attached to the cap nuts 3 located on the wall surface side.

  That is, while the cover K is in contact with the wall surface S, the hot water inlet 14 'is temporarily tightened on the left side cap nut 3 from the wall surface side, and the water inlet 14 on the right While temporarily fastening the cap nut 3, the horizontal position of the faucet body B is maintained, and the both cap nuts 3 and 3 are fully tightened.

  Thus, while the surface on the wall surface side of the clip 4, 4 abuts on the wall surface S, and the wall W is sandwiched between the nut 16, 16 and the clip 4, 4, between the cover K and the wall surface The faucet main body B can be disposed in the horizontal posture without any gap.

  In the present invention, as the clip 4, in addition to the one formed in the reverse U-shape in front view, the one formed in the C-shape in front view can be applied as shown in FIG. 4 (A). Then, according to need, the clip 4 formed in a C shape in a front view may be fitted into the groove 10 from a direction other than the above with respect to the groove 10. In FIG. 4A, the same reference numerals as shown in FIGS. 1 to 3 denote the same or corresponding parts.

  Furthermore, FIG. 4 (B) shows another modification of the clip 5. In FIG. 4 (B), the same reference numerals as shown in FIG. 1 to FIG. 3 and FIG. 4 (A) are the same or equivalent.

  In FIG. 4B, the clip 4 is formed of a single flat plate member that can be simultaneously locked to the clip locking grooves 10 located on the hot water side and the water side. A pair of substantially semicircular openings Z 'and Z having the same pitch P as the pitch between the center line M' of the hot water discharge port 14 '(see FIG. 1) and the center line M' of the hot water discharge port 14 'are formed.

  Then, when the faucet body B is attached to the wall W, the opening Z 'and Z of the clip 4 are fitted in advance so as to be engageable from above the annular clip retaining grooves 10 and 10, respectively. Thus, the pitch between the clip locking grooves 10 can be made to coincide with the pitch P, and consequently, the pitch between the cap nuts 3 located on the wall surface side can also be made to coincide with the pitch P. . Therefore, the male screw 15 of the water inlet 14 and the male screw 15 of the water inlet 14 'can be smoothly attached to the cap nut 3, 3 while easily maintaining the horizontal position of the faucet body B.

  Also, in the clip 4 shown in FIG. 4B, the surface on the wall surface side is in contact with the wall surface S in the same manner as the clip 4 shown in FIG. 3 and FIG. It differs from the case of the clip 4 shown in FIG.

  In the clip 4 shown in FIG. 4B, the surface on the wall surface side of the clip 4 is in contact with the wall surface S also at the location between the water side wall hole H and the hot water side wall hole H ′. The clip 4 having the shape shown in FIG. 4 (B) is effective as a reinforcing member when attaching the faucet body K to the wall W, since the clip 4 having the increased size and the nuts 16 and 16 will be pinched. Can contribute to

  In addition, the degree which contributes as a reinforcement member at the time of attaching the faucet main body B to the wall W can be improved by using two clips 4 shown to FIG. 4 (B) as needed. That is, in the present invention, one of the two clips 4 and 4 can be lockably fitted from above the clip locking grooves 10 and 10, and the other can be lockably fitted from below. . At this time, while the upper and lower clips 4 and 4 are connected by an appropriate connection fitting, the openings Z and Z and the openings Z 'and Z' may be opposed to sandwich the openings 7a and 7a from above and below.

  FIG. 5 shows a second embodiment of the present invention. In FIG. 5, the same reference numerals as shown in FIGS. 1 to 4 denote the same or corresponding parts.

  In addition, as FIG. 5 shows, the connection structure of the water conduit 14 by the side of the faucet 8 and the water side piping C of the wall W back side is demonstrated. This connection structure is also applicable to the connection structure of the hot water inlet 14 'and the hot water side pipe h.

  In FIG. 5, in this embodiment, while the flange 30 is provided on the downstream side of the clip locking groove 10 in the downstream connection portion 7, the flange 31 for contacting the flange 30 of the downstream connection portion 7 is water A stopper 32 as shown in, for example, Japanese Patent No. 341 036 is provided on the plug side water conduit 14 and is formed by bending a plate-like body, and the flange 30 and the flange 31 are in contact with each other. In the state, both the flanges 30 and 31 are configured to be pinched and held by the locking tool 32.

  More specifically, the downstream connection portion 7 has a male screw 9 screwed to the nut 16 on the outer surface, a clip locking groove 10 on the outer surface, and the flange 30 at the tip end toward the downstream side. ing. The flange 30 is set to a size that can pass through the wall hole H.

  The locking member 32 is formed by bending a plate-like body into a substantially Ω shape, and is large enough to allow insertion of both flanges 30 and 31 at opposite side positions. The opening 33 is set to the height. The outer diameters of the flanges 30 and 31 are the same.

  On the other hand, the flange 30 is formed at the downstream end of the downstream connection 7 and has an outer diameter larger than the outer diameter of the downstream connection 7. The flange 31 is provided on the upstream end of the water inlet 14.

  Then, with the nut 16 attached to the connection fitting 1 connected to the pipe C, the downstream side connection portion 7 is positioned from the back side of the wall through the wall hole H to the front side of the wall to form the downstream side connection portion 7 The flange 30 formed at the downstream end of the clip locking groove 10 and the downstream connecting portion 7 is protruded from the wall surface S.

  At this time, the annular horizontal surface 16b of the nut 16 is brought into contact with the back of the wall while adjusting the tightening condition of the nut 16 appropriately.

  Subsequently, the clip 4 is locked in the clip locking groove 10 protruding from the wall surface S.

  Subsequently, the faucet body B is attached to the wall W in a state where the cover K, the temperature control handle E and the switching handle G are attached as shown in FIG. At this time, the flange 30 located on the wall surface side is brought into contact with the flange 31 provided on the upstream end of the water inlet 14.

  That is, in a state where the cover K is in contact with the wall surface S, the water introduction port 14 and the downstream connection portion 7 are sealably fitted in the abutting state of the flange 31 and the flange 30. The flanges 30 and 31 are inserted into the opening 33 in a stacked state, and the flanges 30 and 31 are sandwiched and held by the fasteners 32. The hot water side performs the same process.

  In this embodiment, the clip 4 is positioned on the upstream side of the clip locking groove 10, and a pair of front and rear substantially Ω-shaped forming the opening 33 of the locking tool 32 on the downstream side of the clip locking groove 10. Among the opposed members 32 a, 32 a, the opposed member 32 a on the upstream side of the flange 30 is positioned adjacent to the clip 4. That is, the front and rear widths of the clip engaging groove 10 of this embodiment are larger than the clip engaging groove 10 of the first embodiment by the entering width of the opposing member 32a. 10a shows the downstream part of the groove 10 for clip latching which has the width | variety which the opposing member 32a can entrap.

  Thereby, the surface on the wall surface side of the clip 4, 4 abuts on the wall surface S, and the wall W is sandwiched between the nut 16, 16 and the clip 4, 4 and between the cover K and the wall surface The faucet main body B can be disposed in the horizontal posture without any gap.

  FIG. 6 shows a joint 40 as shown in, for example, Japanese Patent No. 5964566, having a simple attachment / detachment mechanism downstream of the clip locking groove 10 in the downstream connection portion 7, and the downstream connection of the water outlet 14 is provided. It is configured to switch between a free state in which the connecting portion 41 with the portion 7 can be inserted and removed, and a locked state in which the connecting portion 41 of the water conduit 14 inserted in the free state is pivotally connected around the axis. 3 illustrates a third embodiment of the present invention. In FIG. 6, the same reference numerals as shown in FIGS. 1 to 5 denote the same or corresponding parts.

  In addition, in FIG. 6, the connection structure of the water conduit 14 and the water side pipe C on the back side of the wall W will be described. This connection structure is also applicable to the connection structure of the hot water inlet 14 'and the hot water side pipe h.

  In this embodiment, the downstream connection portion 7 includes a joint 40 having a simple attachment / detachment mechanism on the downstream end side. That is, a joint 40 having a simple attachment / detachment mechanism is provided adjacent to the clip locking groove 10 immediately downstream of the clip locking groove 10 in the downstream connection portion 7.

  The joint 40 includes an inner cylinder 42, an outer cylinder 43 and small balls 44. The joint 40 is set to a size that can pass through the wall hole H.

  The outer cylinder 43 is disposed concentrically with the inner cylinder 42, and the inner diameter of the tip is larger than that of other parts, and can be slid in the axial direction of the inner cylinder 42 and by an elastic member (not shown) It is biased toward the tip of the inner cylinder 42.

  The small ball 44 has a size of being fitted from the outside into each of a plurality of (for example, four) through holes formed in the inner cylinder 42 and passing through the through holes.

  The joint 40 switches between the locked state and the free state in accordance with the position of the sliding outer cylinder 43.

  That is, when the outer cylinder 43 is at a position closest to the tip of the inner cylinder 42 in the slidable range, a portion other than the tip of the outer cylinder 43 presses each small ball 44 and a part of each small ball 44 Is in a locked state in which it is held in a state of protruding through the through hole and projecting inside the inner cylinder 42.

  In addition, when the outer cylinder 43 is made to slide against the urging force against the outer cylinder 43 so that the tip of the outer cylinder 43 covers each small ball 44 from the outside, the inner diameter of the tip of the outer cylinder 43 becomes large. Each small ball 44 is in a free state that can be retracted into the through hole. Even in this free state, the tips of the outer cylinder 43 prevent the small balls 44 from coming out of the through holes.

  On the other hand, an annular groove 44 is provided in the upstream portion of the connection portion 41 of the water conduit 14, and the small balls 44 can be engaged with the annular groove when the joint 40 is in a locked state. The connecting portion 41 is rotatable around the axis of the inner cylinder 42 in the state where the engagement is performed.

  In addition, when the joint 40 is in the free state, the engagement is released, and the connection portion 41 can be inserted into and extracted from the joint 40.

  Thus, with the nut 16 attached to the connection fitting 1 connected to the pipe C, the clip locking groove 10 formed in the downstream connection portion 7 and the joint 40 integrally provided in the downstream connection portion 7 From the wall back side through the wall hole H, and the clip locking groove 10 and the joint 40 are made to project from the wall surface S.

  At this time, the annular horizontal surface 16b of the nut 16 is brought into contact with the back of the wall while adjusting the tightening condition of the nut 16 appropriately.

  Subsequently, the clip 4 is locked in the clip locking groove 10 protruding from the wall surface S.

  Subsequently, the faucet body B is attached to the wall W in a state where the cover K, the temperature control handle E and the switching handle G are attached as shown in FIG.

  That is, with the cover K applied to the wall surface S, the connection portion 41 of the water inlet 14 is fitted into the joint 40. Under the present circumstances, after inserting the connection part 41 in the coupling 40 of a free state, the coupling 40 is made into a locked state. The hot water side performs the same process.

  Thereby, the surface on the wall surface side of the clip 4, 4 abuts on the wall surface S, and the wall W is sandwiched between the nut 16, 16 and the clip 4, 4 and between the cover K and the wall surface The faucet main body B can be disposed in the horizontal posture without any gap.

DESCRIPTION OF SYMBOLS 1 Connection bracket 3 Cap nut 4 Clip 5 Ring packing 6 Upstream connection portion 7 Downstream connection portion 8 Water faucet 9 Male screw 10 Groove for clip locking 11 Female screw for hanging nut 12 Female screw for lifting nut 13 Flange for lifting nut 14 , 14 'water inlet 15 male screw of water inlet 16 nut Q female screw of nut a, b water passage C, h piping S wall surface

Claims (4)

There is a water passage inside, an upstream connection part for connecting with the pipe on the back side of the wall on the upstream side, and at least a part protruding from the wall surface on the downstream side for connecting a faucet A connection fitting having a downstream connection, and having a male screw and a clip locking groove on the outer surface thereof at the downstream connection;
A clip that abuts against the wall surface to define the amount of protrusion from the wall surface of the downstream connection portion and is engaged with the clip locking groove;
A connection between a faucet and a pipe on the back side of a wall, comprising a female screw screwed to the male screw on the downstream side connection portion and a nut formed to abut the wall back surface by screwing. Construction. A hanging nut screwing female screw is provided on the inner surface of the downstream connection portion,
Providing a hanging nut having an external thread screwed to the hanging nut screwing female screw;
A cap nut is provided which is engaged with the flange of the suspension nut and screwed to the external thread of the water port on the faucet side,
The connection structure of the faucet of Claim 1 and the piping of the wall back side of Claim 1 which provided the cyclic | annular packing between the said flange of the said suspending nut and the water-conveyance port by the side of a faucet. A flange is provided downstream of the clip locking groove in the downstream connection portion, and a flange for contacting the flange of the downstream connection portion is provided in the water outlet on the faucet side, and a plate-like body is provided. Provide a bent formed lock.
In a state where the flange provided on the downstream side connection portion is in contact with the flange provided on the water conduit on the side of the faucet, the flanges are held by the fasteners. Connection structure between the faucet described in and piping on the back side of the wall.   A joint having a simple attachment / detachment mechanism is provided downstream of the clip locking groove at the downstream side connection portion, and the connection portion of the water outlet on the faucet side is inserted in a free state where it can be inserted and removed. The connection structure between the water faucet according to claim 1 and the pipe on the back side of the wall according to claim 1, wherein the connection portion of the water conduit on the water faucet side is switched to a locked state rotatably connected around an axis. .