CN113502884A

CN113502884A - Water tap

Info

Publication number: CN113502884A
Application number: CN202110818039.4A
Authority: CN
Inventors: 森田徹矢; 森住孝一; 石仓健太郎; 杉田寿夫; 秋田朋弘; 高桥良和
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2017-10-31
Filing date: 2018-10-30
Publication date: 2021-10-15
Also published as: CN109723107A

Abstract

A faucet comprising a tubular main pipe portion, wherein a hot and cold water mixing valve for mixing hot water and cold water and a switching valve for changing the water discharge amount and the water discharge direction of the hot and cold water mixed by the hot and cold water mixing valve are arranged in an axial direction in the main pipe portion, wherein a faucet water discharge opening communicating with the switching valve is formed in the main pipe portion, the faucet further comprising a water discharge module attached to the main pipe portion so as to communicate with the faucet water discharge opening of the main pipe portion, the water discharge module having a faucet water discharge flow path formed therein and a water discharge port formed at a distal end thereof, and wherein the water discharge port of the water discharge module is disposed at a position eccentric to the faucet water discharge opening of the main pipe portion in a state in which the water discharge module is attached to the main pipe portion.

Description

Water tap

The application is a division of an invention patent application with application date of 2018, 10 and 30 months and application number of 201811274084.2 and the name of the invention is 'water faucet'.

Technical Field

The invention relates to a faucet.

Background

A faucet described in patent document 1 is known as a conventional faucet. Patent document 1 discloses a so-called thermostatic faucet. The faucet body of the faucet disclosed in patent document 1 includes a hot and cold water mixing valve (thermostatic cartridge) for mixing hot water and cold water, and a switching valve for changing the discharge amount and the discharge direction of the hot and cold water mixed by the hot and cold water mixing valve.

Patent document 1: japanese patent laid-open publication No. 2006-328674

On the other hand, the pressure of water flowing through the faucet body may increase rapidly due to a water hammer phenomenon or the like. In this case, the inside of the faucet body may be broken and damaged. In addition to the structure disclosed in patent document 1, development of a technique capable of further reducing the risk of breakage of the faucet main body is desired.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a faucet capable of reducing the risk of damage to a faucet main body.

In order to achieve the above object, a faucet according to the present invention includes a tubular main pipe portion, a hot and cold water mixing valve for mixing hot water and cold water and a switching valve for changing a water discharge amount and a water discharge direction of the hot and cold water mixed by the hot and cold water mixing valve are arranged in an axial direction in the main pipe portion, a faucet water discharge opening communicating with the switching valve is formed in the main pipe portion, characterized in that the utility model also comprises a water outlet module which is arranged on the main pipe part in a way of communicating with the tap water outlet opening of the main pipe part, the water outlet module is provided with a flow path for water outlet of the tap, and a water outlet at the tail end, and when the water outlet module is arranged on the main pipe part, the water outlet of the water outlet module is disposed at a position eccentric to the faucet water outlet opening of the main pipe portion.

According to the invention, the damage risk of the faucet main body part can be reduced.

Drawings

Fig. 1 is a perspective view of a faucet according to an embodiment of the present invention.

Fig. 2 is an exploded perspective view of the faucet of fig. 1.

Fig. 3 is an exploded perspective view of the faucet of fig. 2.

Fig. 4A is a bottom perspective view showing a schematic structure of the inside of the faucet unit.

Fig. 4B is a bottom perspective view showing a schematic configuration of the interior of the faucet unit.

Fig. 4C is a vertical cross-sectional view showing a schematic structure of the inside of the faucet unit.

Fig. 5 is a bottom perspective view showing a schematic configuration of the faucet body.

Fig. 6 is a bottom perspective view showing a schematic configuration of the faucet body.

Fig. 7 is a transverse cross-sectional view of the faucet body to which the hot and cold water mixing valve and the switching valve are attached.

Fig. 8 is a bottom perspective view of an insulating material.

Fig. 9 is a bottom perspective view of the insulating material.

Fig. 10 is a bottom perspective view showing a schematic configuration of the interior of the faucet unit.

Fig. 11 is a side view of the body cover.

Fig. 12A is a bottom perspective view of the first cover.

Fig. 12B is a bottom view of the first cover.

Fig. 13 is a bottom view of the second cover.

Fig. 14 is a bottom view of the main body cover and the peripheral member.

Fig. 15 is a partially enlarged vertical sectional view showing the water module and peripheral members.

Fig. 16 is a bottom view of the faucet body.

Fig. 17 is a cross-sectional view of the faucet body.

Fig. 18 is an exploded perspective view of the water outlet module.

Fig. 19 is a plan view of the main body of the water outlet module.

Fig. 20 is a bottom view of the main body of the outlet module.

Fig. 21 is a bottom perspective view of the main body portion of the water outlet module.

Fig. 22 is a cross-sectional view of a faucet body according to a modification.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiment.

(embodiment mode)

[ integral Structure ]

Fig. 1 is a perspective view of a faucet 10 according to an embodiment of the present invention. In the present embodiment, the faucet 10 is a constant temperature faucet mounted on a wall surface of a bathroom. As shown in fig. 1, the faucet 10 includes a faucet unit 20 and a handle unit 50. The faucet unit 20 is a unit for discharging water. The handle unit 50 is attached to the faucet unit 20, and is a unit capable of changing the discharge amount of the discharged water from the faucet unit 20, the discharge direction, and the mixing degree of the hot and cold water.

< faucet Unit >

Fig. 2 is an exploded perspective view of a part of the faucet unit 20 of fig. 1. Fig. 3 is a further exploded perspective view of the faucet unit 20 of fig. 2. As shown in fig. 2 and 3, the faucet unit 20 includes a faucet body 21, a heat insulating material 22, a support member 23, a stay (stay)24, and a body cover 25.

The faucet body 21 is a member having a flow path for water to pass through therein, and constitutes the body of the faucet unit 20. The faucet body 21 is covered with a heat insulating material 22. The heat insulating material 22 is a member for preventing water inside the faucet body 21 from freezing. The support member 23 is a member for supporting the faucet body 21 by connecting the faucet body 21 and the stay 24. The stay 24 is a member for fixing the faucet body 21 to a wall of a bathroom. The body cover 25 covers the faucet body 21.

< faucet Main body >

Fig. 4A, 4B, and 4C are a bottom perspective view, and a vertical sectional view, respectively, showing a schematic configuration of the inside of the faucet unit 20 when the faucet body 21 is not covered with the heat insulating material 22. As shown in fig. 4A to 4C, the faucet body 21 is connected to a hot water supply 27 and a cold water supply 28 via a joint 26. The hot water supply source 27 and the cold water supply source 28 are a hot water supply pipe and a cold water supply pipe, respectively, provided inside the wall surface of the bathroom. Water stop plugs 62 and 64 are attached to the joint 26 (fig. 4B). The

water stoppers

62 and 64 are members for stopping the supply of the cold and hot water from the hot water supply source 27 and the cold water supply source 28.

As shown in fig. 3 and 4A, a coupling member 29a different from the joint 26 is attached to the faucet body 21. A shower elbow 29 (fig. 3) is attached to the connecting member 29 a. The shower elbow 29 is a member for connecting a shower hose (not shown) to the faucet main body 21.

As shown in fig. 3, a hot and cold water mixing valve 30 is attached to the faucet body 21 from the left side, and a switching valve 31 is attached from the right side. The hot and cold water mixing valve 30 is a member for mixing hot water and cold water to discharge water. The hot and cold water mixing valve 30 is also commonly referred to as a thermostatic cartridge. The hot and cold water mixing valve 30 is supplied with hot water from a hot water supply source 27 (fig. 4A and 4B), and supplied with cold water from a cold water supply source 28. The switching valve 31 is a member for changing the water discharge amount and the water discharge direction of the hot and cold water. The faucet 10 is called a constant temperature faucet by including the hot/cold water mixing valve 30 and the switching valve 31.

As shown in fig. 4A and 4B, a gear portion 32 that engages with the handle unit 50 is provided at an axially outer end of the hot/cold water mixing valve 30 and the selector valve 31. The gear portion on the hot and cold water mixing valve 30 side is not shown in fig. 4A and 4B.

Next, the faucet body 21 will be described in more detail with reference to fig. 5 to 7. Fig. 5 is a perspective view showing a schematic configuration of the faucet body 21. Fig. 6 is a perspective view of the faucet body 21 of fig. 5 viewed from a different angle. Fig. 7 is a sectional view of the faucet body 21 to which the hot/cold water mixing valve 30 and the switching valve 31 are attached.

As shown in fig. 5 to 7, the faucet body 21 includes a main pipe portion 210, a hot water supply branch pipe portion 211, a cold water supply branch pipe portion 212, a faucet water discharge branch pipe portion 213, and a shower water discharge branch pipe portion 214. As shown in fig. 6, the faucet main body 21 includes a relief valve 215 and a drain plug 216.

The faucet body 21 including these members is integrally formed of resin. That is, the main pipe portion 210, the hot water supply branch pipe portion 211, the cold water supply branch pipe portion 212, the faucet water discharge branch pipe portion 213, the shower water discharge branch pipe portion 214, the relief valve 215, and the drain plug 216 are simultaneously molded by injection molding using the same resin material, and are integrally formed of resin.

< main pipe section >

The main pipe portion 210 is a tubular member formed in a cylindrical shape. As shown in fig. 7, the main pipe portion 210 includes the hot and cold water mixing valve 30 and the switching valve 31 arranged in the axial direction (Y direction). The inner wall of the main pipe portion 210 shown in fig. 7 forms a space containing the hot and cold water mixing valve 30 and the switching valve 31, and extends in the axial direction. In order to perform resin molding using a mold, the inner wall of the main pipe portion 210 may be inclined so as to slightly spread outward from the center side toward the end side in the axial direction (for example, the inclination angle is 0.2 to 0.5 degrees). Openings for inserting the hot and cold water mixing valve 30 and the switching valve 31 are formed at both axial ends of the main pipe portion 210. Thread grooves 217 are formed at both ends. The screw groove 217 is provided for mounting the cap member 33 shown in fig. 3. The thread groove 217 is screwed with a thread formed inside the cap member 33. The screw groove 217 is formed integrally with the main pipe portion 210 by resin.

As shown in fig. 3, the handle unit 50 and a collar (collar)34 are attached to the main pipe portion 210 so as to cover the cap member 33 at both axial ends. The collar 34 is disposed between the handle unit 50 and the main tube portion 210.

As shown in fig. 5 to 7, in the present embodiment, ribs 218a and 218aa are provided on the outer peripheries of both end portions of the main pipe portion 210. The rib 218a is provided at the left end portion of the main pipe portion 210, and the rib 218aa is provided at the right end portion of the main pipe portion 210. The ribs 218a and 218aa are adjacent to the thread groove 217 and extend in the circumferential direction at a position closer to the center of the main pipe portion 210 than the thread groove 217. The ribs 218a, 218aa are formed integrally with the main pipe portion 210 from resin.

In the present embodiment, ribs 218b are provided at wall-side end portions of the hot water supply branch pipe portion 211 and the cold water supply branch pipe portion 212. The rib 218b is formed integrally with the hot water supply branch pipe portion 211 and the cold water supply branch pipe portion 212 by resin.

As shown in fig. 7, a rib 218c is provided on the inner peripheral portion of the main pipe portion 210. The rib 218c extends in the circumferential direction between the hot and cold water mixing valve 30 and the switching valve 31, that is, at a portion where the hot and cold water mixing valve 30 communicates with the switching valve 31. The rib 218c is formed integrally with the main tube portion 210 from resin. The rib 218c has a function of reducing the amount of water held inside the main pipe portion 210. This can prevent the main pipe portion 210 from being damaged by freezing of water in the main pipe portion 210.

As shown in fig. 5, a hot water inlet 210a and a cold water inlet 210b are formed in the inner periphery of the main pipe portion 210. The hot water inlet 210a and the cold water inlet 210b are openings of the main pipe portion 210 formed around the hot and cold water mixing valve 30, and communicate with the hot and cold water mixing valve 30. Further, a faucet water outlet opening 210c and a shower water outlet opening 210d are formed in the inner periphery of the main pipe portion 210. The faucet water outlet opening 210c and the shower water outlet opening 210d are openings of the main pipe portion 210 formed around the switching valve 31, and communicate with the switching valve 31. As shown in fig. 4A, faucet spout opening 210c and shower spout opening 210d are provided axially inward of the outer peripheral portion (rib 218aa in the present embodiment) of the axially right end portion of main pipe portion 210. The outer peripheral portion is connected to a support member 23.

As shown in fig. 6, a fastening portion 219 is provided at a lower portion of the main pipe portion 210. The fastening portion 219 is a member for attaching the body cover 25 (fig. 2). Specifically, the fastening part 219 forms a hole for fastening the screw 300 shown in fig. 2 and 3.

< branch pipe for Hot Water supply >

As shown in fig. 5, the hot water supply branch pipe portion 211 is a pipe-shaped member that is branched from the main pipe portion 210 at a position including the hot water inlet 210 a. The hot water supply branch pipe portion 211 forms a flow path inside thereof for supplying hot water from the hot water supply source 27 (fig. 4) to the main pipe portion 210 via the hot water inlet 210 a. That is, the hot water supply branch pipe portion 211 connects the hot water supply source 27 to the hot water inlet 210a of the main pipe portion 210, and forms a flow path through which hot water flows.

< branch pipe for cold water supply >

The cold water supply branch pipe portion 212 is a tubular member formed by branching from the main pipe portion at a position including the cold water inlet 210 b. The cold water supply branch pipe portion 212 has a flow path formed therein for supplying cold water from the cold water supply source 28 (fig. 4) to the main pipe portion 210 via the cold water inlet 210 b. That is, the cold water supply branch pipe portion 212 connects the cold water supply source 28 to the cold water inlet 210b of the main pipe portion 210, and forms a flow path through which cold water flows.

The hot water supply branch pipe portion 211 and the cold water supply branch pipe portion 212 extend in the transverse direction (-X direction) from the main pipe portion 210, and are arranged in an axial direction (Y direction).

< branch pipe for faucet spout >

The tap water outlet branch pipe portion 213 is a tubular member branched from the main pipe portion 210 at a position including the tap water outlet opening 210 c. The faucet spout branch 213 forms a flow path for hot and cold water to be poured therein. In the present embodiment, the faucet spout branch pipe portion 213 is a water outlet pipe that extends downward (in the (-Z direction) from the main pipe portion 210 and performs faucet spout. Although not shown in fig. 4A and 5, the faucet spout branch portion 213 is provided with the spout module 80 (fig. 4B). The water discharge module 80 discharges water at a position eccentric from the faucet water discharge opening 210 c. The water outlet module 80 will be described later.

< shower outlet branch pipe portion >

As shown in fig. 5, the shower outlet branch pipe portion 214 is a tubular member branched from the main pipe portion 210 at a position including the shower outlet opening 210 d. Shower outlet branch pipe portion 214 extends from main pipe portion 210 in the lateral direction (-X direction) and extends toward the wall of the bathroom, and forms a flow path for hot and cold water to be discharged inside. In the present embodiment, the shower outlet branch pipe portion 214 is a water outlet pipe for performing shower outlet. As shown in fig. 4A, a connecting member 29a is attached to the wall-side end of the shower outlet branch pipe portion 214.

< pressure relief valve >

As shown in fig. 4B and 6, a relief valve 215 is connected to the hot water supply branch pipe portion 211. The relief valve 215 is a valve that opens when the flow path of the hot water supply branch pipe portion 211 receives a pressure equal to or higher than a predetermined pressure, and releases the pressure inside the faucet main body portion 21 to the outside. The relief valve 215 of the present embodiment is provided to branch downward from the hot water supply branch pipe portion 211.

In particular, in the present embodiment, the faucet body 21 is integrally formed of resin, and therefore has lower strength than a case where it is formed of metal. Therefore, when the pressure of the fluid flowing through the internal space of the faucet main body 21 increases due to a water hammer phenomenon or the like, it is preferable to reduce the risk of breakage of the faucet main body 21 from the inside. In contrast, by attaching the relief valve 215 to the faucet main body 21, the flow path of the faucet main body 21 is prevented from receiving excessive pressure, and the risk of damage to the faucet main body 21 can be reduced.

< drainage stopper >

As shown in fig. 4B and 6, a drain plug 216 is connected to the cold water supply branch pipe portion 212. The drain plug 216 is a member that discharges water around the drain plug 216 by opening the drain plug, and discharges water inside the faucet body 21 by injecting air into the interior of the faucet body. This can prevent water inside the faucet body 21 from freezing. The drain plug 216 of the present embodiment is provided to branch downward from the cold water supply branch pipe portion 212.

< check valve >

As shown in fig. 7, a check valve 70 is attached to hot water supply branch pipe portion 211, and a check valve 72 is attached to cold water supply branch pipe portion 212. The check valve 70 is a valve for preventing backflow of hot water from the hot water supply branch pipe portion 211 to the joint 26, and the check valve 72 is a valve for preventing backflow of cold water from the cold water supply branch pipe portion 212 to the joint 26.

By providing

check valves

70 and 72, the internal spaces of hot water supply branch pipe portion 211 and cold water supply branch pipe portion 212 prevent backflow of fluid, and become regions in which the pressure tends to increase. Further, the hot water supply branch pipe portion 211 and the cold water supply branch pipe portion 212 may be located on the most upstream side of the faucet main body 21, and the pressure tends to increase. By connecting the relief valve 215 and the drain plug 216 so as to communicate with such a flow path, pressure increase can be effectively suppressed in a space where pressure is likely to increase.

In particular, in the present embodiment, since the drain plug 216 is connected to the cold water supply branch pipe portion 212, even when an excessive pressure is generated in the internal space of the cold water supply branch pipe portion 212, the pressure in the cold water supply branch pipe portion 212 may be reduced via the drain plug 216. Therefore, by providing the relief valve 215 only in the hot water supply branch pipe portion 211 without providing the relief valve in the cold water supply branch pipe portion 212, it is possible to effectively suppress the pressure increase while achieving cost reduction.

< Heat insulating Material >

The heat insulating material 22 shown in fig. 2 and 3 is a member that closely contacts and covers the outer periphery of the faucet main body 21. As shown in fig. 2 and 3, the heat insulating material 22 covers the outer periphery of the main pipe portion 210 along the axial direction of the main pipe portion 210, and covers the portion from the rib 218a to the vicinity of the rib 218 aa.

Fig. 8 is a perspective view of the thermal insulation material 22. Fig. 9 is a perspective view of the insulating material 22 viewed from a different angle. As shown in fig. 8 and 9, the heat insulating material 22 has a plurality of

openings

220, 221, 222, 223, 224, 225, 226. The faucet body 21 is disposed inside the heat insulating material 22. The hot water supply branch pipe portion 211 is disposed at the opening 220. The cold water supply branch pipe portion 212 is disposed at the opening 221. The faucet spout branch pipe portion 213 is disposed at the opening 222. Shower outlet branch pipe portion 214 is disposed at opening 223. The relief valve 215 is disposed at the opening 224. The drain plug 216 is disposed at the opening 225. The fastening portion 219 is disposed at the opening 226.

The thermal insulation material 22 preferably has a thermal conductivity of 0.05W/mK or less, for example. The thermal insulator 22 preferably has a thermal conductivity of 0.03W/mK or less. The thermal insulation material 22 contains either foamed polyurethane or foamed styrene.

< support Member >

As shown in fig. 4A and 4B, the support member 23 supports the faucet body 21 by fixing the faucet body 21 to the stay 24. Specifically, the support member 23 supports the main pipe portion 210 of the faucet main body portion 21 by connecting the outer peripheral portion of the main pipe portion 210 on the side (right side) opposite to the side (left side) in the axial direction on which the hot and cold water mixing valve 30 is mounted to the wall side of the bathroom. Here, "connected to the wall side of the bathroom" means directly or indirectly connected to the wall of the bathroom or a member (including the hot water supply source 27 and the cold water supply source 28) fixed to the wall of the bathroom. The support member 23 supports the faucet body 21 to be horizontal. In the present embodiment, the support member 23 connects the outer peripheral portion of the main pipe portion 210 to the stay 24 on the wall side of the bathroom. More specifically, the support member 23 connects the collar 34 attached to the outer peripheral portion of the main tube portion 210 to the stay 24 on the wall side of the bathroom. Thereby, the support member 23 indirectly connects the outer peripheral portion of the main tube portion 210 to the wall side of the bathroom via the collar 34.

A recess 23a is provided in an upper portion of the support member 23. The recess 23a is provided for fitting into a shower elbow 29 (fig. 3). When a shower hose (not shown) is connected to the right side of the faucet main body 21, the shower hose and the shower elbow 29 can be connected to the right side of the faucet main body 21 by fitting the shower elbow 29 into the recess 23a of the support member 23, as shown in fig. 2. When a shower hose is connected to the left side of the faucet main body 21, a support member 35 described later is used.

< stay >

The stay 24 is a member fixed to a wall of the bathroom and holds the faucet main body 21. As shown in fig. 3, the stay 24 has openings for connecting the joint 26 with a hot water supply 27 and a cold water supply 28. A support member 23 is detachably attached to a right end of the stay 24. A support member 35 is attached to the left end of the stay 24. The support member 35 is a member for fixing the shower elbow to the left side of the faucet main body 21. A recess 35a is provided in an upper portion of the support member 35.

Fig. 10 is a perspective view showing a schematic configuration of the inside of the faucet unit 20 in a case where a shower hose is connected to the left side of the faucet body 21. When the shower hose is connected to the left side of the faucet body 21, the shower elbow 29A is fitted into the support member 35 attached to the stay 24.

< body cover >

As shown in fig. 2 and 3, the main body cover 25 includes a top cover 250 and a base cover 251. The body cover 25 is attached to the faucet body 21 and the stay 24 in a state where the faucet body 21 is disposed so as to be sandwiched vertically. The main body cover 25 is formed of resin.

Fig. 11 is a side view of the main body cover 25. The top cover 250 covers the upper portion of the faucet body 21. The base cover 251 has left and right side surfaces and a bottom surface, and covers a lower portion of the faucet body 21. The base cover 251 is formed separately from the top cover 250 and is fitted to the top cover 250. In the present embodiment, the top plate cover 250 is formed of acrylic resin (PMMA resin), and the base cover 251 is formed of ABS resin.

The base cover 251 is constituted by two cover members (a first cover member 254, a second cover member 256). Each cover member will be described with reference to fig. 12A to 14.

Fig. 12A and 12B are bottom perspective and bottom views of the first cover member 254, respectively. Fig. 13 is a bottom view of the second cover member 256. Fig. 14 is a bottom view of the base cover 251 and its peripheral members in a state where the first cover member 254 and the second cover member 256 are overlapped.

The first cover member 254 shown in fig. 12A and 12B is a plate-shaped member having a plurality of openings. The first cover member 254 has a first relief valve opening 254A, a drain plug opening 254B, a maintenance opening 254C, a faucet water outlet opening 254D, and a screw opening 254E.

The first relief valve opening 254A is an opening formed at a position corresponding to the relief valve 215. Specifically, the first relief valve opening 254A opens at a position directly below (the discharge port of) the relief valve 215. By forming the first relief valve opening 254A, the drain discharged from the relief valve 215 can be discharged to the outside in a state where the faucet main body 21 is covered with the main body cover 25. This prevents drainage from accumulating in the space between the faucet body 21 and the body cover 25, and improves the hygiene of the faucet 10 while maintaining the appearance of the faucet 10.

The drain plug opening 254B is an opening formed at a position corresponding to the drain plug 216. Specifically, the drain plug opening 254B opens at a position directly below (the drain port of) the drain plug 216. By forming such a drain plug opening 254B, water discharged from the drain plug 216 can be discharged to the outside in a state where the faucet body 21 is covered with the body cover 25. This prevents drainage from accumulating in the space between the faucet body 21 and the body cover 25, and improves the hygiene of the faucet 10 while maintaining the appearance of the faucet 10.

The maintenance opening 254C is an opening formed at a position corresponding to the water stop plugs 62 and 64 (fig. 4B). Specifically, the maintenance opening 254C opens at a position directly below (the discharge port of) the water stop plugs 62 and 64. By forming the maintenance opening 254C, the user can operate the water stop plugs 62 and 64 by touching them through the maintenance opening 254C in a state where the faucet body 21 is covered with the body cover 25. This can improve user convenience.

The maintenance opening 254C is openably and closably covered by a second cover member 256 described later.

The faucet spout opening 254D is an opening formed at a position corresponding to the faucet spout branch pipe portion 213. Specifically, the faucet spout opening 254D is opened so as to be inserted through the faucet spout branch pipe portion 213.

The

screw openings

254E and 254F are openings for passing screws 300 (fig. 2 and 3), and the screws 300 are used to fix the first cover member 254 to the faucet main body 21. The screws 300 inserted into the

screw openings

254E and 254F are connected to the fastening portions 219 (fig. 6) of the faucet main body 21. Thereby, the body cover 25 including the first cover member 254 can be fixed to the faucet body 21.

As with the maintenance opening 254C, the

screw openings

254E and 254F are also openably and closably covered by a second cover member 256 described later.

As shown in fig. 12B, the first cover member 254 is provided with a plurality of mounting portions 255. The mounting portion 255 is a member for detachably mounting the second cover member 256 to the first cover member 254. The mounting portion 255 in the present embodiment is constituted by a plurality of claw portions/recesses.

The second cover member 256 shown in fig. 13 is a member that is detachably attached to the first cover member 254 so as to partially cover the lower side of the first cover member 254.

A plurality of mounting portions 257 are provided on the second cover member 256. The mounting portion 257 is fitted to the mounting portion 255 of the first cover member 254, whereby the second cover member 256 can be detachably mounted on the first cover member 254. The mounting portion 257 in the present embodiment is configured by a plurality of claw portions/recessed portions corresponding to the mounting portion 255.

The second cover member 256 is configured to cover the first relief valve opening 254A, the maintenance opening 254C, and the

screw openings

254E and 254F of the first cover member 254, and to not cover the drain plug opening 254B and the faucet spout opening 254D.

As shown in fig. 13, the second cover member 256 includes a main portion 256A and two

sub portions

256B and 256C extending from the main portion 256A. The main portion 256A is a portion that covers the maintenance opening 254C of the first cover member 254. The sub portion 256B is a portion disposed to face the first relief valve opening 254A and the screw opening 254E of the first cover member 254. The sub portion 256C is a portion disposed to face the screw opening 254F of the first cover member 254.

The

screw openings

254E and 254F of the first cover member 254 are covered by the sub portion 256B and the

screw openings

254F and 254F of the first cover member 254 are covered by the sub portion 256C, respectively, so that the

screw openings

254E and 254F can be hidden. This can improve the appearance of the faucet 10.

The sub portion 256B has a second relief valve opening 256D. The second relief valve opening 256D is an opening provided at a position opposite to the first relief valve opening 254A. In this way, not only the first relief valve opening 254A but also the second relief valve opening 256D are formed in the first cover member 254, and the second cover member 256. Thus, even in a state where the second cover member 256 is attached to the first cover member 254, the water can be reliably discharged from the relief valve 215.

In the present embodiment, the opening area of the first relief valve opening 254A is set larger than the opening area of the second relief valve opening 256D. Specifically, the diameter of the first relief valve opening 254A is set to be longer than the diameter of the second relief valve opening 256D. By setting the opening area of the second relief valve opening 256D outside the first relief valve opening 254A to be small in this way, the appearance of the second cover member 256 can be improved. Further, by setting the opening area of the first relief valve opening 254A inside the second relief valve opening 256D to be large, the drain from the relief valve 215 can be reliably discharged.

The sub-portion 256C has a dummy opening 256E. The dummy opening 256E is an opening formed symmetrically with the second relief valve opening 256D and having the same size. The dummy opening 256E is not opposed to the opening of the first cover member 254. By providing such dummy opening 256E, the shape of second cover member 256 in plan view becomes more symmetrical, and the appearance of faucet 10 can be improved. In addition, water can be further suppressed from accumulating inside the main body cover 25.

< Water discharge Module >

Next, a description will be given of a water discharge module 80 for discharging water from a faucet in the faucet main body 21, with reference to fig. 15 to 21.

Fig. 15 is a partially enlarged longitudinal sectional view showing the water module 80 and its peripheral structure. As shown in fig. 15, the outlet module 80 is attached to the faucet outlet branch pipe portion 213 of the faucet body portion 21.

Here, the peripheral structure of the faucet spout branch pipe portion 213 in the faucet main body portion 21 will be described with reference to fig. 16 and 17. Fig. 16 is a bottom view of the faucet body 21, and fig. 17 is a transverse sectional view of the faucet body 21. In fig. 16 and 17, the configuration other than the faucet body 21 is not shown as appropriate. In addition, the water outlet module 80 is not shown.

As shown in fig. 16, faucet spout branch pipe portion 213 has a substantially elliptical shape in bottom view. The faucet water outlet opening 210c formed in the outer peripheral portion of the main pipe portion 210 is exposed inside the faucet water outlet branch pipe portion 213. The faucet water outlet opening 210c is located at a position laterally (left-right direction; see arrow Y1) eccentric from the center of the faucet water outlet branch pipe portion 213 in a bottom view. The outlet module 80 is installed in communication with the faucet outlet opening 210 c.

Screw receiving portions 82 are provided adjacent to each other on the faucet spout branch portion 213. A screw 85 (fig. 18) to be described later is screwed into the screw receiving portion 82. The water outlet module 80 can be fixed to the faucet body 21 by screwing the screw 85 to the screw receiving portion 82. The screw receiving portion 82 is formed with a thread groove (not shown) that receives a thread of the screw 85.

Next, the water outlet module 80 will be described with reference to fig. 18 to 21. Fig. 18 is an exploded perspective view of the water outlet module 80. Fig. 19, 20, and 21 are top, bottom, and bottom perspective views, respectively, of the main body 84 of the water outlet module 80.

As shown in fig. 18, the outlet module 80 includes a main body 84, a screw 85, a filter 86, and a cap 88.

The body portion 84 is a cylindrical member constituting the main body of the water outlet block 80. An upstream-side opening 90A (fig. 18 and 19) is formed at an upstream end portion of the body portion 84, and a downstream-side opening 90B (fig. 19, 20, and 21) is formed at a downstream end portion. The upstream opening 90A and the downstream opening 90B communicate with each other to form a flow path for faucet water discharge. The upstream-side opening 90A is disposed at a position facing the faucet spout opening 210c inside the faucet spout branch pipe portion 213.

The body portion 84 is provided with two laterally extending flange portions 92. The flange portions 92 are formed with insertion holes 94, respectively. The insertion hole 94 is an opening for inserting the screw 85. In a state where the screw 85 is inserted through the insertion hole 94, the screw 85 is screwed to the screw receiving portion 82 of the faucet body 21 (fig. 16).

A rectifying portion 87 is provided inside the main body portion 84 (fig. 19, 20, and 21). The rectifying portion 87 is a member for rectifying the water flowing through the main body portion 84. The rectifying portion 87 in the present embodiment is formed integrally with the main body portion 84. Specifically, the main body portion 84 and the rectifying portion 87 are integrally formed of resin by injection molding using the same resin material.

The filter 86 is a net-shaped member for adjusting the amount of water flowing in the body portion 84. The filter 86 is disposed between the body portion 84 and the cap 88.

The cap 88 is a cylindrical member covering the downstream side of the body portion 84. The cap 88 is screwed to the body 84. An opening (not shown) is formed in the lower end of the cap 88, and the downstream opening 90B of the main body 84 is exposed through the opening. The downstream side opening 90B constitutes an outlet of the water outlet module 80.

The water discharge module 80 having such a structure discharges water at a position eccentric from the faucet water discharge opening 210c of the faucet body 21. Specifically, in a state where the water outlet block 80 is attached to the faucet water outlet branch pipe portion 213, the downstream opening 90B of the main body portion 84 is provided at a position eccentric in the axial direction (Y direction) with respect to the faucet water outlet opening 210c of the faucet main body portion 21. With such a configuration, even at a position where the faucet water outlet opening 210c is offset from the center of the faucet body 21, water can be discharged from the downstream side opening 90B of the water discharge module 80 at a desired position regardless of the position of the faucet water outlet opening 210 c.

In particular, in the present embodiment, in a state where the water outlet module 80 is attached to the faucet water outlet branch pipe portion 213, the downstream side opening 90B of the main body portion 84 is provided at a position eccentric to the faucet water outlet opening 210c of the faucet water outlet branch pipe portion 213 toward the center side of the faucet main body portion 21 in the axial direction. This enables water to be discharged from the center of the faucet body 21, thereby improving the appearance of the faucet 10.

In the present embodiment, in a state where the water outlet module 80 is attached to the faucet water outlet branch pipe portion 213, the downstream opening 90B of the main body portion 84 is disposed at a position that does not overlap the faucet water outlet opening 210c of the faucet water outlet branch pipe portion 213 when viewed in a direction perpendicular to the opening. Thus, the water outlet position can be adjusted greatly.

< handle Unit >

As shown in fig. 1, the handle unit 50 includes a first handle unit 50a and a second handle unit 50 b.

In the present embodiment, the first handle unit 50a is a unit for adjusting the temperature of the outlet water. Specifically, the temperature of the discharged water is adjusted by rotating the first handle unit 50a in the R direction. For example, the temperature of the discharged water is lowered by the downward rotation from the reference position, and the temperature of the discharged water is raised by the upward rotation from the reference position.

In a state where the first handle unit 50a is at the reference position, the temperature of the discharged water is set to a predetermined temperature. When the first handle unit 50a is rotated in an upward direction from the reference position, the hot and cold water mixing valve 30 (fig. 3) is rotated in an upward direction together with the first handle unit 50 a. This increases the ratio of the amount of hot water to the amount of cold water, and the temperature of the discharged water is higher than a predetermined temperature. On the other hand, when the first handle unit 50a is rotated downward from the reference position, the hot and cold water mixing valve 30 is rotated downward together with the first handle unit 50 a. This increases the ratio of the amount of cold water to the amount of hot water, and the temperature of the discharged water is lower than a predetermined temperature.

The second handle unit 50b is a unit for changing the discharge direction (faucet discharge or shower discharge) and the discharge amount by rotation. Specifically, the water discharge direction is changed by changing the rotation direction R from the reference position in the second handle unit 50 b. For example, faucet discharge is performed from the faucet discharge branch pipe portion 213 by rotation from the reference position in the downward direction, and shower discharge is performed from the shower discharge branch pipe portion 214 by rotation from the reference position in the upward direction. Further, the water discharge amount is changed by changing the degree of rotation from the reference position. For example, when the amount of rotation from the reference position of the second handle unit 50b is increased, the amount of water discharge is increased.

[ Effect ]

< pressure relief valve >

As described above, the faucet 10 of the present embodiment includes the faucet main body 21, and the hot/cold water mixing valve 30 that mixes hot water and cold water and the switching valve 31 that changes the discharge amount and the discharge direction of the hot/cold water mixed by the hot/cold water mixing valve 30 are provided inside the faucet main body 21. The faucet main body 21 is made of resin, and a relief valve 215 is attached to the faucet main body 21.

With this configuration, the manufacturing cost of the faucet 10 can be reduced by forming the faucet body 21 with resin. On the other hand, even if the pressure relief valve 215 is made of a resin having a lower strength than metal, the pressure of the water in the faucet body 21 can be reduced even when the pressure rises excessively. This can reduce the risk of breakage of the faucet body 21.

In the present embodiment, the faucet main body 21 further includes a main pipe portion 210, a hot water supply branch pipe portion 211, and a cold water supply branch pipe portion 212. The main pipe portion 210 is a cylindrical member that contains the hot/cold water mixing valve 30 and the switching valve 31. The hot water supply branch pipe portion 211 is a member in which a flow path is formed that branches from the main pipe portion 210 and supplies hot water from the hot water supply source 27 to the main pipe portion 210. The cold water supply branch pipe portion 212 is a member having a flow path formed therein, which branches from the main pipe portion 210 and supplies cold water from the cold water supply source 28 to the main pipe portion 210. In the present embodiment, the relief valve 215 is attached to the hot water supply branch pipe portion 211.

According to this configuration, the hot water supply branch pipe portion 211 is located on the most upstream side of the faucet main body 21, and is a portion where the pressure is likely to increase due to a water hammer phenomenon or the like. By providing the relief valve 215 in the hot water supply branch pipe portion 211, the pressure rise can be effectively suppressed, and the risk of damage to the faucet main body portion 21 can be further reduced.

In the present embodiment,

check valves

70 and 72 are attached to the upstream end of the hot water supply branch pipe portion 211 and the upstream end of the cold water supply branch pipe portion 212, respectively.

According to this configuration, by attaching the check valve 70 on the upstream side of the relief valve 215, the relief valve 215 can be disposed at a portion where the pressure is likely to increase, and the increase in pressure can be effectively suppressed. This can further reduce the risk of breakage of the faucet body 21.

In the present embodiment, the drain plug 216 is attached to the cold water supply branch pipe portion 212, and the relief valve 215 is attached only to the hot water supply branch pipe portion 211. According to this configuration, since the drain plug 216 is provided in the cold water supply branch pipe portion 212, when an excessive pressure is generated, the pressure of the cold water supply branch pipe portion 212 may be reduced via the drain plug 216. Thus, by providing the relief valve 215 not in the cold water supply branch pipe portion 212 but in the hot water supply branch pipe portion 211, it is possible to effectively suppress a pressure increase in the hot water supply branch pipe portion 211 that is likely to generate excessive pressure. Further, since the relief valve 215 is attached only to the hot water supply branch pipe portion 211, the manufacturing cost of the faucet 10 can be reduced as compared with a case where the relief valve is provided in both the hot water supply branch pipe portion 211 and the cold water supply branch pipe portion 212.

In the present embodiment, a rib 218c is provided on the inner peripheral portion of the main pipe portion 210 at a portion where the hot and cold water mixing valve 30 and the switching valve 31 communicate with each other. According to this configuration, by providing the ribs 218c to narrow the flow path, the space in which water is accumulated in the main pipe portion 210 can be reduced, and the possibility that the main pipe portion 210 is broken due to freezing of water can be reduced.

< opening of body cover >

As described above, the faucet 10 of the present embodiment includes the faucet main body 21, and the hot/cold water mixing valve 30 that mixes hot water and cold water and the switching valve 31 that changes the discharge amount and the discharge direction of the hot/cold water mixed by the hot/cold water mixing valve 30 are provided inside the faucet main body 21. The faucet 10 of the present embodiment further includes a body cover 25 attached to the faucet body 21 from the outside so as to cover at least a part of the faucet body 21. A relief valve 215 is attached to the faucet main body 21, and

relief valve openings

254A and 256D are formed in the main body cover 25 at positions including a position directly below the relief valve 215.

According to this configuration, by attaching the relief valve 215 to the faucet main body 21, even when excessive pressure is generated in the flow path in the faucet main body 21, the pressure can be reduced, and the risk of damage to the faucet main body 21 can be reduced. Further, by forming the

relief valve openings

254A and 256D in the main body cover 25 at positions corresponding to the relief valves 215, the drain water from the relief valves 215 can be reliably discharged in a state where the faucet main body 21 is partially covered by the main body cover 25. This enables the faucet 10 to be kept well hygienic.

In the present embodiment, the relief valve 215 is attached to the lower side of the faucet body 21, and the body cover 25 is provided to cover at least a part of the lower side of the faucet body 21. According to this configuration, the relief valve 215 can be arranged at a inconspicuous position and covered by the main body cover 25, and the appearance of the faucet 10 can be improved.

In the present embodiment, the main body cover 25 includes a first cover member 254 and a second cover member 256. The first cover member 254 is a member in which a first opening 254A constituting the first relief valve opening 254A and a maintenance opening 254C different from the first opening 254A are formed. The second cover member 256 is attached to the outside of the first cover member 254 so as to open and close the maintenance opening 254c of the first cover member 254. The second cover member 256 also forms a second relief valve opening 256D at a position corresponding to the first relief valve opening 254A.

With this configuration, by providing the maintenance opening 254c and opening and closing the maintenance opening 254c, the user can perform maintenance on the faucet main body 21 as needed. This can improve user convenience. Further, by forming the first and second

relief valve openings

254A and 256C in the first and

second cover members

254 and 256, respectively, the drain of the relief valve 215 can be reliably discharged regardless of the open/closed state of the second cover member 256.

In the present embodiment, the opening area of the first opening 254A is set larger than the opening area of the second opening 256D. With this configuration, the appearance of the body cover 25 can be improved, and the drain water of the relief valve 215 can be reliably discarded.

The faucet 10 of the present embodiment further includes a hot water supply source 27 (hot water supply pipe) and a cold water supply source 28 (cold water supply pipe) extending from the wall surface of the bathroom and connected to the faucet main body 21. Water stop plugs 62 and 64 are provided in the hot water supply source 27 and the cold water supply source 28, respectively. The maintenance opening 254c of the first cover member 254 is open at a position facing the water stop plug 62 of the hot water supply source 27 and the water stop plug 64 of the cold water supply source 28. With this configuration, the user can operate the water stop plugs 62 and 64 when necessary by opening and closing the second cover member 256, and the user's convenience can be improved, and the appearance of the faucet 10 can be improved. When the second cover member 256 is closed, contact with the hot water supply source 27 and the cold water supply source 28 is restricted. Therefore, the hot water supply source 27 can be prevented from being touched by the hand of the user by mistake, thereby preventing scalding.

In the present embodiment, the faucet body 21 is provided with the drain plug 216, and the body cover 25 is provided with the drain plug opening 254B at a position corresponding to the drain plug 216. With this configuration, the drain from the drain plug 216 can be more reliably discarded.

< Water discharge Module >

As described above, the faucet 10 of the present embodiment includes the tubular main pipe portion 210, and the hot/cold water mixing valve 30 for mixing hot water and cold water and the switching valve 31 for changing the discharge amount and the discharge direction of the hot/cold water mixed by the hot/cold water mixing valve 30 are arranged in the main pipe portion 210 in the axial direction. The main pipe portion 210 has a faucet water outlet opening 210c communicating with the switching valve 31. The faucet 10 is also provided with a water outlet module 80. The water outlet module 80 is attached to the main pipe portion 210 so as to communicate with the faucet water outlet opening 210c of the main pipe portion 210, forms a faucet water outlet flow path, and has a downstream side opening 90B (water outlet) at the end. In a state where the water outlet block 80 is attached to the main pipe portion 210, the downstream opening 90B of the water outlet block 80 is disposed at a position eccentric to the faucet water outlet opening 210c of the main pipe portion 210.

With this configuration, the downstream opening 90B of the water outlet block 80 can be set at any position regardless of the position of the faucet water outlet opening 210c of the main pipe portion 210. This enables water to be discharged from an appropriate position of the faucet 10, and the shape of the faucet 10 can be designed more freely.

In the present embodiment, in a state where the water outlet module 80 is attached to the main pipe portion 210, the downstream opening 90B of the water outlet module 80 and the faucet water outlet opening 210c of the main pipe portion 210 are provided at positions that are open downward and are axially eccentric to each other. According to this configuration, by disposing the water discharge module 80 downward, the faucet water discharge can be directed downward while improving the design. Further, by disposing the downstream opening 90B of the water outlet block 80 to be axially eccentric to the position of the faucet water outlet opening 210c of the main pipe portion 210, the position of the water outlet block 80 can be set to a desired left-right position regardless of the position of the faucet water outlet opening 210 c.

In the present embodiment, in a state where the water outlet module 80 is attached to the main pipe portion 210, the downstream opening 90B of the water outlet module 80 is provided at a position eccentric to the faucet water outlet opening 210c of the main pipe portion 210 toward the center of the main pipe portion 210 in the axial direction. According to this configuration, the downstream opening 90B as the water outlet of the water outlet module 80 is located closer to the center of the main pipe portion 210, thereby improving the design of the faucet 10.

In the present embodiment, the water outlet module 80 includes a hollow main body 84 attached to the main pipe portion 210, and a rectifying portion 87 provided in the main body 84. The main body portion 84 and the rectifying portion 87 are integrally formed of resin. With this configuration, by providing the rectifying portion 87, more appropriate water can be discharged from the water discharging module 80. Further, by integrally forming the water outlet module 80 with resin, the manufacturing cost of the faucet 10 can be reduced as compared with the case of forming it with metal or the like.

The present invention is not limited to the above embodiments, and can be implemented in various other embodiments. For example, in the above embodiment, the case where the relief valve 215 is attached to the hot water supply branch pipe portion 211 has been described, but the present invention is not limited thereto. For example, the relief valve 215 may be attached to the cold water supply branch pipe portion 212. That is, the relief valve 215 may be attached to at least one of the hot water supply branch pipe portion 211 and the cold water supply branch pipe portion 212. Not only the hot water supply branch pipe portion 211 but also the cold water supply branch pipe portion 212 is located on the upstream side of the faucet main body 21, and is a place where the pressure is likely to increase due to a water hammer phenomenon or the like. Therefore, by attaching the relief valve 215 to the cold water supply branch pipe portion 212, the increase in pressure can be effectively suppressed, and the risk of damage to the faucet main body 21 can be reduced.

Alternatively, the drain valve 215 may be connected to the faucet main body 21 at a position different from the hot water supply branch pipe portion 211 and the cold water supply branch pipe portion 212. For example, as shown in fig. 22, the relief valve 90 may be attached to the main pipe portion 210 of the faucet main body 21. In the example shown in fig. 22, a relief valve 90 is attached to an outer peripheral portion of the main pipe portion 210 so as to be connected to a portion of the main pipe portion 210 where the cold/hot water mixing valve 30 communicates with the switching valve 31. In such a case, the relief valve 90 can effectively suppress the pressure increase in the main pipe portion 210. In this way, the relief valve may be connected to an arbitrary position in the flow path of the faucet main body 21.

In the above embodiment, the case where the

check valves

70 and 72 are attached to the hot water supply branch pipe portion 211 and the cold water supply branch pipe portion 212, respectively, has been described, but the present invention is not limited thereto, and the

check valves

70 and 72 may not be provided. However, the method of providing the

check valves

70 and 72 can prevent the reverse flow from the faucet body 21 to the joint 26.

In the above embodiment, the drain plug 216 is attached to the cold water supply branch pipe portion 212, and the relief valve 215 is attached only to the hot water supply branch pipe portion 211, but the present invention is not limited to this case. Instead of the cold water supply branch pipe portion 212, the hot water supply branch pipe portion 211 may be provided with a drain plug 216, and only the cold water supply branch pipe portion 212 may be provided with a relief valve 215.

In the above embodiment, the case where the rib 218c is provided on the inner peripheral portion of the main pipe portion 210 where the hot and cold water mixing valve 30 and the switching valve 31 communicate with each other has been described, but the rib 218c is not limited thereto, and may not be provided. However, the mode of providing the rib 218c can reduce the space for water to accumulate in the main pipe portion 210, and can reduce the possibility of the main pipe portion 210 being broken by freezing of water.

In the above embodiment, the case where the relief valve 215 is attached to the lower side of the faucet body 21 and the body cover 25 is provided so as to cover the lower side of the faucet body 21 has been described, but the present invention is not limited to this case. The relief valve 215 may be attached to a portion other than the lower side with respect to the faucet main body 21 and covered with the main body cover 25.

In the above embodiment, the case where the main body cover 25 is provided separately from the two members, i.e., the first cover member 254 and the second cover member 256, has been described, but the present invention is not limited to this case. For example, the main body cover 25 may be formed of one member. However, the degree of freedom in designing the body cover 25 so as to be provided separately from the first cover member 254 and the second cover member 256 is increased.

In the above embodiment, the case where the opening area of the first opening 254A is larger than the opening area of the second opening 256D has been described, but the present invention is not limited to this case. The opening area of the first opening 254A may also be equal to or smaller than the opening area of the second opening 256D. However, the improvement in the appearance of the main body cover 25 and the reliable drainage from the relief valve 215 can be balanced and achieved by making the opening area of the first opening 254A larger than the opening area of the second opening 256D.

In the above embodiment, the case where the water stop plugs 62 and 64 are provided in the hot water supply source 27 and the cold water supply source 28, respectively, and the maintenance opening 254c of the main body cover 25 is opened including the positions facing the two water stop plugs 62 and 64 has been described, but the present invention is not limited to this case. For example, the water stop plugs 62 and 64 may not be provided in the hot water supply source 27 and/or the cold water supply source 28. The maintenance opening 254c of the main body cover 25 may not be opened, but may not include a position facing the two water stop plugs 62 and 64. However, in a manner in which the maintenance opening 254c of the main body cover 25 is opened so as to include a position facing both the water stop plugs 62 and 64 while providing the water stop plugs 62 and 64, the user can operate the water stop plugs 62 and 64 when necessary, and convenience can be improved.

In the above embodiment, the case where the drain plug 216 is provided in the faucet main body 21 and the drain plug opening 254B is formed in the main body cover 25 at a position corresponding to the drain plug 216 has been described, but the present invention is not limited to this case. For example, the drain plug opening 254B may not be formed in the main body cover 25.

In the above embodiment, the downstream opening 90B of the water outlet block 80 and the faucet water outlet opening 210c of the main pipe portion 210 are opened downward and are provided at positions eccentric to each other in the left-right direction in a plan view, but the present invention is not limited to this case. For example, the downstream opening 90B of the outlet block 80 and the faucet water outlet opening 210c of the main pipe portion 210 may be opened in a direction other than downward, or may be provided at positions that are eccentric to each other in the left-right direction when viewed from a direction different from the plan view. However, the downstream opening 90B of the water outlet block 80 and the faucet water outlet opening 210c of the main pipe portion 210 are opened downward and are provided at positions that are offset from each other in the left-right direction in a plan view, so that the faucet water can be directed downward and the appearance of the faucet 10 can be improved.

In the above embodiment, the case where the downstream opening 90B of the water outlet block 80 is provided at a position eccentric to the center of the main pipe portion 210 in the left-right direction with respect to the faucet water outlet opening 210c of the main pipe portion 210 in a plan view has been described, but the present invention is not limited to this case. For example, the main pipe portion 210 may be provided at a position eccentric to the opposite side of the center side. However, the mode of being provided at a position eccentric to the center side of the main pipe portion 210 can improve the design of the faucet 10.

In the above embodiment, the case where the water outlet block 80 includes the hollow main body portion 84 and the rectifying portion 87, and the main body portion 84 and the rectifying portion 87 are integrally formed of resin has been described, but the present invention is not limited to this case. For example, the main body portion 84 and the rectifying portion 87 may be formed of a material different from resin. The main body 84 and the rectifying portion 87 may be different members. Further, the water outlet module 80 may not include the rectifying unit 87. However, in the case where the outlet module 80 includes the hollow main body portion 84 and the rectifying portion 87, and the main body portion 84 and the rectifying portion 87 are integrally formed of resin, it is possible to discharge water from the outlet module 80 more appropriately, and to reduce the manufacturing cost of the faucet 10.

The present invention is fully described in connection with preferred embodiments with reference to the accompanying drawings, but it is obvious to those skilled in the art that various modifications and corrections can be made. It is to be understood that such changes and modifications are intended to be included within the scope of the present invention as defined by the appended claims. Further, combinations of elements and changes in the order of the elements in the embodiments can be realized without departing from the scope and spirit of the present invention.

[ Industrial Applicability ]

The present invention is useful for faucets.

[ description of reference numerals ]

10 tap

20 tap unit

21 tap main body part

210 main pipe part

210 hot water inflow port

210b cold water inlet

210c tap outlet opening

210d shower outlet opening

211 hot water supply branch pipe part

212 branch pipe for cold water supply

Branch pipe part for outlet of 213 tap

213a rectifying part

214 shower outlet branch pipe

215 pressure relief valve

216 drainage plug

217 screw groove

218a, 218aa, 218b reinforcement

219 fastening part

22 thermal insulation material

220. 221, 222, 223, 224, 225, 226 openings

23 support member

23a recess

24 stay

25 body cover

250 top plate cover

251 base cover

26 joint

27 Hot water supply source (heating water pipe)

28 Cold water supply (Cold water supply pipe)

29. 29A shower elbow

29a connecting member

30 cold and hot water mixing valve

31 switching valve

32 gear part

33 Cap member

34 collar

35 support member

35a recess

50 handle unit

50a first handle unit

50b second handle unit

69 drainage bolt

70. 72 check valve

254 first cover member

254A first relief valve opening

254B drain plug opening

254C maintenance opening

Opening for water outlet of 254D faucet

254E, 254F screw opening

255 mounting part

256 second cover member

256A Main portion

256B, 256C sub-part

256D second relief valve orifice

256E dummy opening

257 mounting part

80 go out water module

82 screw receiving part

84 main body part

85 screw

86 filter

87 rectifying part

88 cap

90A upstream side opening

90B downstream side opening (Water outlet)

92 flange part

94 through hole

Claims

1. A faucet comprising a tubular main pipe portion, a hot and cold water mixing valve for mixing hot water and cold water and a switching valve for changing the discharge amount and discharge direction of the hot and cold water mixed by the hot and cold water mixing valve being provided in the main pipe portion in an axially aligned manner, wherein a faucet discharge opening communicating with the switching valve is formed in the main pipe portion,

further comprising a water discharge module mounted on the main pipe portion so as to communicate with the faucet water discharge opening of the main pipe portion, the water discharge module having a flow path for faucet water discharge formed therein and a water outlet formed at a distal end thereof,

the outlet of the water outlet module is disposed at a position eccentric to the faucet water outlet opening of the main pipe portion in a state where the water outlet module is attached to the main pipe portion.

2. The faucet of claim 1,

in a state where the water discharge module is attached to the main pipe portion, the water outlet of the water discharge module and the faucet water discharge opening of the main pipe portion are opened downward and are provided at positions eccentric to each other in the axial direction.

3. The faucet of claim 2,

the outlet of the water outlet module is provided at a position eccentric to the center side of the main pipe portion in the axial direction with respect to the faucet water outlet opening of the main pipe portion in a state where the water outlet module is attached to the main pipe portion.

4. The faucet according to any one of claims 1 to 3,

the water outlet module includes a hollow main body portion attached to the main pipe portion, and a rectifying portion provided in the main body portion, and the main body portion and the rectifying portion are integrally formed of resin.

5. The faucet according to any one of claims 1 to 4,

the faucet body portion including the main pipe portion is integrally formed of resin.