JPH036678Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a faucet appliance that is installed with its rear end in contact with a wall surface.

(Conventional example) Conventionally, as this type of faucet equipment, the one shown in FIG. 6 and disclosed in Japanese Utility Model Publication No. 57-23579 is known.

To explain the one in Fig. 6, a female threaded portion 8 is formed on the inner peripheral surface of the opening opening on the back side of the main body A, while a connecting fitting E having a male threaded portion 11 on the outer peripheral surface is screwed into the pipe D. , the female threaded portion 8 of the main body A is screwed into the male threaded portion 11 of the connector E, and the main body A is connected to the pipe D via the connector E. Therefore, in order to attach or remove the main body, the main body must be rotated many times, and it is troublesome to attach or detach the main body to or from the connecting pipe.

On the other hand, in order to eliminate the above-mentioned trouble of attachment and detachment, it is also possible to provide a spline or the like that engages with the outer circumferential surface of the connector and the inner circumferential surface of the opening of the main body, and connect the main body to the piping by engaging the two. However, depending on the position of the piping, that is, the position of the open end of the piping with respect to the wall surface, the position of the engaging portion may be distorted and the main body may not be installed with the rear end in contact with the wall surface.

(Problems to be Solved by the Invention) The problems to be solved by the invention are to facilitate attachment and detachment of the main body to piping and to ensure that the rear end of the main body is in contact with the wall surface.

(Means for Solving the Problems) The technical means taken by the present invention to solve the above problems is to form a recess on the back surface inside the main body, and to partition the recess from the flow path inside the main body. An inlet is opened in the inlet, and the inlet and the piping are connected through a first connecting pipe and a second connecting pipe, and the inlet is formed in an insertion opening and an upstream side of the insertion opening. The first connecting pipe is formed into a cylindrical shape, and has an insertion part that is watertightly fitted into the insertion opening at one end, and a female threaded part on the inner peripheral surface of the other end. , a second engaging portion is provided on the outer circumferential surface of the intermediate portion in correspondence with the engaging portion, and the second engaging portion is engaged with the engaging portion so that the engaging portion can be moved back and forth in the axial direction but cannot be rotated, and the second connecting pipe is It is provided with a piping connection portion screwed onto the piping at one end, and a male threaded portion screwed onto the female threaded portion of the first connecting pipe on the outer circumferential surface of the middle portion.

The faucet device of the present invention is not only a single faucet for hot water or water, a mixed faucet for hot and cold water, but also has two outflow paths on the bath side and the shower side, and is only equipped with a mechanism for selectively switching between these two outflow paths. It is also a general term for bath/shower switching valves, etc.

(Operation) A second connecting pipe is screwed onto the pipe, a first connecting pipe is screwed onto the second connecting pipe, and a second engaging portion formed on the first connecting pipe is connected to the inlet of the main body. If the main body is attached by engaging the formed engaging portions, there is no need to rotate the main body.Moreover, by screwing the first connecting pipe into the second connecting pipe until the rear end contacts the wall surface, the second engaging portion can be attached. Since the protrusion position from the wall surface can always be kept at a constant position, the rear end of the main body can surely abut against the wall surface.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In the drawings, FIGS. 1 to 4 show the case where the faucet equipment is a bath/shower switching valve, and FIG. 3 shows the case where the faucet equipment is a hot water mixing faucet.

In FIGS. 1 to 4, A is the main body of the faucet device a, 2 is a flow path formed inside the faucet device A, and 2 is a flow path formed inside the faucet, including an inlet 4 and a flow path on the bath side and the shower side that communicate with this inlet 4. It has outlets 12 and 13 as well as the inlet 4 and the outlet 1 on the bath side and the shower side respectively.
Between 2 and 13, there is a switching valve part 1 that selectively switches the communication between the outflow ports 12 and 13 and the inflow port 4 by operating a switching handle 14 provided on the front surface of the main body A.
5.

In addition, the main body A has a flow path 2 on the back side via a partition wall 3.
A recess 1 is formed, and the inlet 4 is opened in this partition wall 3.

The inlet 4 has a stepped portion 16 in the middle in the axial direction, and has a larger diameter on the recess 1 side, that is, the upstream side, and a smaller diameter on the flow path 2 side, that is, the downstream side of the stepped portion 16. The formed upstream side is the engagement part 6, and the small diameter downstream side is the insertion opening part 5.

The above-mentioned engaging part 6 is for engaging with a second engaging part 9 formed on a first connecting pipe B, which will be described later, so that it can move forward and backward in the axial direction but cannot rotate. A female spline 17 is formed.

Further, a screw hole 18 is formed in the engaging portion 6 so as to connect the inner circumferential surface of the engaging portion 6 with the outer circumferential surface of the main body A.

The first connecting pipe B is formed into a roughly cylindrical shape, and the main body A
An insertion part 7 inserted into the insertion port 5 formed in the inlet 4 of The connecting portion 19 consists of three parts.

The insertion portion 7 is formed at one end (hereinafter referred to as the tip) of the first connecting tube B, and has an outer diameter that is approximately the same as the inner diameter of the insertion port 5, and an O-ring 20 is fitted on the outer periphery of the insertion portion 7. .

The second engaging part 9 is provided in the middle of the first connecting pipe B adjacent to the insertion part 7, has an outer diameter that is approximately the same as the inner diameter of the engaging part 6, and has an engaging part on its outer peripheral surface. A male spline 21 corresponding to the female spline 17 of the portion 6 is formed. This second engaging portion 9 has an inner diameter larger than the inner diameter of the insertion portion 7 . Further, the second engaging portion 9 is formed to have such a dimension that the length from this portion to the rear end of the first connecting pipe B corresponds to the length from the engaging portion 6 of the main body A to the rear end of the main body A. There is.

The second connecting pipe connecting part 19 is provided at the other end (rear end) of the first connecting pipe B adjacent to the second engaging part 9, and has an inner diameter and an outer diameter larger than that of the second engaging part 9. A female threaded portion 8 for connecting the second connecting pipe is formed on the inner circumferential surface. Further, a packing 22 is attached to the rear end of the second connecting pipe connecting portion 19, that is, the rear end surface of the first connecting pipe B.

The insertion portion 7 at the tip of the first connecting pipe B is inserted into the insertion opening portion 5, and the O-ring 20 ensures watertightness of the portion, and the male spline 21 of the second engagement portion 9 is secured.
is engaged with the female spline 17 of the engaging portion 6, and the second
It is connected to the second connecting pipe C via the female threaded part 8 of the connecting pipe connecting part 19 .

Incidentally, a threaded screw 23 is screwed into the screw hole 18, and its tip is pressed against the outer circumferential surface of the first connecting tube B to fix the first connecting tube B to the main body A.

The second connecting pipe C is formed into a generally cylindrical shape having an inner diameter that is approximately the same as the inner diameter of the insertion part 7 of the first connecting pipe B. 2
Insertion part 24, second connecting pipe connection part 1 of first connecting pipe B
The first connecting pipe connecting part 25 is screwed to the pipe connecting part 9, and the pipe connecting part 10 is connected to the pipe D buried in the wall surface 26 of the building.

The second insertion portion 24 has an outer diameter that is approximately the same as the inner diameter of the second engagement portion 9, and an O-ring 27 is fitted onto the outer peripheral surface.

The first connecting pipe connecting portion 25 is the second connecting pipe connecting portion 1
It has an outer diameter that is approximately the same as the inner diameter of No. 9, and a second
A male threaded portion 11 is formed to be screwed into the female threaded portion 8 of the connecting pipe connection portion 19.

The pipe connection part 10 has an outer diameter that is approximately the same as the inner diameter of the end opening of the pipe D that opens into the building wall surface 26, and has a faucet fixture formed on the inner peripheral surface of the end opening of the pipe D on its outer peripheral surface. A male threaded portion 29 for piping connection is formed to be screwed into the female threaded portion 28 for connection.

This second connecting pipe C connects the pipe connecting portion 10 to the pipe D.
At the same time, the first connecting pipe connecting part 25 is screwed onto the second connecting pipe connecting part 19 to connect it to the pipe D.
Connect to connecting pipe B. At this time, the second insertion part 24 is inserted into the second engaging part 9, and the O-ring 27 ensures watertightness between the first and second connecting pipes B and C.

Therefore, such faucet equipment a first connects to the second connecting pipe C.
is screwed to the pipe D, then the first connecting pipe B is screwed to the second connecting pipe C, the rear end of the second connecting pipe C is brought into contact with the wall surface 26, and finally the main body A is The mating part 6 and the second engaging part 9 of the first connecting pipe B are engaged and connected to the first connecting pipe B, and the screw screw 2
3 to connect to pipe C.

The faucet device a described above connects the bath spout 30 to the bath side outlet 12 and the shower 31 to the shower side outlet 13, and is incorporated into an automatic hot water supply system for a bath as shown in FIG. The spout 30 is installed so as to face the bathtub b.

The automatic hot water supply system for the bath includes, for example, a water heater c, a bathtub b, a faucet fixture a, a mixing valve unit d, a drainage device e, a controller outside the bathtub f, a controller inside the bathroom g, and a signal from the controllers f and g inside the bathroom or outside the bathroom. Mixing valve unit d based on
A control board h that controls the operation of the drainage device e; a home controller j that operates the control board h in response to an external command via a telephone i using a public telephone line;
etc., and a controller in the bathroom or outside the bathroom.
A set amount of hot water at a set temperature is automatically supplied to bathtub b in response to an electrical command from f or home controller j, and in this embodiment,
A bathroom controller g is integrally installed in a main body A of a faucet fixture a.

A pipe D connected to the inlet 4 of the faucet device a extends from the mixing valve unit d, and supplies hot water mixed to a set temperature by the mixing valve unit d to the faucet device a.

Next, when the faucet equipment shown in FIG. 5 is a hot water mixing faucet, two inlets 4 are provided in the partition wall 3, one for hot water and one for cold water, and the two inlets 4 are connected to the first connecting pipe, respectively. The only difference from the above switching valve is that it is connected to the hot water supply pipe D ₁ or the water supply pipe D ₂ via the second connecting pipe C and the insertion port formed in the inlet 4. 5, engaging part 6, first connecting pipe B
The structures of the insertion part 7, second engaging part 9, female threaded part 8, pipe connection part 10 and male threaded part 11 formed in the second connecting pipe C are the same as in the case of the switching valve described above. .

Therefore, description of the above portions of the one shown in FIG. 3 will be omitted.

In this embodiment, since hydrostatic pressure is applied to the connection between the pipe D and the faucet fixture a, the tip of the screw 23 screwed into the screw hole 18 of the main body A is connected to the first connecting pipe, as in the first embodiment described above. If the fixing method is to press it against the outer circumferential surface of B, there is a risk that the connection between the first connecting pipe B and the main body A will come off due to water pressure, so a screw hole 18' is also provided in the first connecting pipe B and the screw
3. If the tip is screwed into the first connecting pipe B, it will be necessary to use a strong fixing means.

(Effects) Since the present invention has the above configuration, it has the following advantages.

(1) A first connecting pipe that is threadedly connected to the second connecting pipe is interposed between the second connecting pipe that is threadedly connected to the piping and the main body, and a mutual connection pipe that is provided at the inlet of the main body and the outer periphery of the first connecting pipe is interposed. Since the main body is connected to the first connecting pipe by an engaging part that can move forward and backward in the axial direction but cannot rotate, the main body can be connected to the pipe without having to rotate the main body many times. connection work is easy.

(2) A first connecting pipe that is screwed onto the second connecting pipe is interposed between the second connecting pipe that is screwed on the pipe and the main body, and the second engaging part of the first connecting pipe and the main body are engaged. Since the joint part is engaged, the dimension from the wall surface to the second engaging part can be kept constant regardless of the position of the pipe tip with respect to the wall surface, and the rear end of the main body can be reliably brought into contact with the wall surface. be able to.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a faucet device showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the line of Fig. 1, Fig. 3 is a plan view, and Fig. 4 is a cross-sectional view of a faucet appliance showing an embodiment of the present invention. A schematic diagram showing an example of the state in which the faucet shown in FIG. It is a sectional view showing an example. A... Main body, B... First connecting pipe, C... Second connecting pipe, D... Piping, 1... Recess, 2... Channel, 3
...Bulkhead, 4...Inflow port, 5...Insertion port, 6...
Engagement part, 7... Insertion part, 8... Female screw part, 9...
Second engaging portion, 10...Piping connection portion, 11...Male thread portion.

Claims (1)

[Scope of utility model registration request] A recess is formed on the back surface of the main body, an inflow port is provided in a partition wall that separates the recess and a flow path within the main body, and the inflow port and piping are connected via a first connecting pipe and a second connecting pipe. The inflow port includes an insertion port and an engagement portion that is formed upstream of the insertion port and has a larger diameter than the insertion port, and the first connecting pipe is formed in a cylindrical shape and has one end. an insertion part that is watertightly fitted into the insertion opening;
A female threaded portion is provided on the inner circumferential surface of the other end, and a second engagement is provided on the outer circumferential surface of the middle portion corresponding to the above-mentioned engaging portion, and is engaged with the engaging portion so as to be able to advance in the axial direction but not to rotate. The second connecting pipe has a pipe connection part screwed onto the pipe at one end, and a male threaded part screwed into the female threaded part of the first connecting pipe on the outer peripheral surface of the middle part. faucet equipment.