Water faucet, spout head attached to water faucet, and water faucet assembly method

Abstract

A water faucet includes a water faucet main body and a spout head detachably attached to the water faucet main body. The water faucet main body has a support column having a water path and a coupling pipe protruding in a radial direction of the support column. The spout head is attached to the water faucet main body in a state of accommodating the coupling pipe.

What is claimed is: 
     
         1 . A water faucet, comprising:
 a water faucet main body; and   a spout head detachably attached to the water faucet main body,   wherein the water faucet main body has a support column having a water path and a coupling pipe protruding in a radial direction of the support column, and   the spout head is attached to the water faucet main body in a state of accommodating the coupling pipe.   
     
     
         2 . The water faucet according to  claim 1 ,
 wherein the water faucet main body further comprises a rotator rotatably attached to the support column, and   the coupling pipe is provided to the rotator.   
     
     
         3 . The water faucet according to  claim 2 ,
 wherein an end part of the spout head abuts against an outer circumferential surface of the rotator when the spout head is attached to the water faucet main body.   
     
     
         4 . The water faucet according to  claim 2 ,
 wherein the outer circumferential surface of the rotator has a curved surface shape, and   a shape of a surface, of the spout head, facing the rotator corresponds to the curved surface shape of the rotator.   
     
     
         5 . The water faucet according to  claim 3 ,
 wherein the end part of the spout head is covered with a buffer member, and   the spout head abuts against the outer circumferential surface of the rotator via the buffer member.   
     
     
         6 . The water faucet according to  claim 1 ,
 wherein the spout head has a structure in which an inner pipe forming a water supply passage is inserted into an outer shell, and   the inner pipe accommodates the coupling pipe.   
     
     
         7 . A spout head detachably attached to a water faucet main body,
 wherein the spout head is connected to the water faucet main body so as to accommodate a coupling pipe protruding from the water faucet main body.   
     
     
         8 . The spout head according to  claim 7 ,
 wherein the spout head is connected to the water faucet main body having a support column having a water path and a rotator rotatably attached to the support column and having the coupling pipe protruding in a radial direction,   an end part of the spout head accommodates the coupling pipe, and   the spout head is fixed to the water faucet main body with a fastener, inserted from an insertion port extending in a circumferential direction in an outer shell, gripping the coupling pipe.   
     
     
         9 . The spout head according to  claim 7 ,
 wherein the spout head is connected to the water faucet main body having a support column having a water path and a rotator rotatably attached to the support column and having the coupling pipe protruding in a radial direction,   the spout head has a structure in which an inner pipe forming a water supply passage is inserted in an outer shell, and   the spout head is connected to the water faucet main body with the inner pipe accommodating the coupling pipe.   
     
     
         10 . A water faucet assembly method comprising:
 inserting, with respect to a water faucet main body including a support column having a water path and a rotator rotatably attached to the support column and having a coupling pipe protruding in a radial direction, the coupling pipe into a spout head such that an end part of the spout head faces an outer circumferential surface of the rotator; and   inserting a fastener from an insertion port extending in a circumferential direction in an outer shell of the spout head and allowing the fastener to grip the coupling pipe.   
     
     
         11 . The water faucet according to  claim 1 ,
 wherein the spout head is mounted to the water faucet main body in a state of accommodating the coupling pipe up to a base part of the coupling pipe.   
     
     
         12 . The water faucet according to  claim 11 ,
 wherein a first and a second rotation restricting parts for restricting rotation of the spout head in the circumferential direction are formed on an outer surface of the coupling pipe and on an inner surface of the spout head, respectively.   
     
     
         13 . The spout head according to  claim 7 ,
 wherein the spout head is detachably connected to the water faucet main body having the coupling pipe protruding from a side surface of the main body, and   the spout head is mounted to the water faucet main body in a state of accommodating the coupling pipe up to a base part of the coupling pipe.   
     
     
         14 . The water faucet according to  claim 1 ,
 wherein a tapered surface is formed on the outer surface of the coupling pipe, and   the spout head is mounted to the water faucet main body in a state where an end part thereof faces the tapered surface of the coupling pipe.   
     
     
         15 . The water faucet according to  claim 14 ,
 wherein a tapered surface is also formed at the end part of the spout head.   
     
     
         16 . The water faucet according to  claim 15 ,
 wherein the spout head is mounted to the water faucet main body in a state where a part or all of the tapered surface of the spout head and the tapered surface of the coupling pipe abut against each other.   
     
     
         17 . The water faucet according to  claim 14 ,
 wherein, inside the spout head, a first accommodating part having a first inner diameter is formed at an end part side thereof, and a second accommodating part having a second inner diameter smaller than the first inner diameter is formed on a back side thereof.   
     
     
         18 . The spout head according to  claim 7 ,
 wherein the spout head is detachably connected to the water faucet main body having the coupling pipe protruding from a side surface of the main body,   the spout head has a double pipe structure in which an inner pipe accommodating the coupling pipe is inserted into an outer shell, and   the inner pipe extends from a spout to an end part of the outer shell.   
     
     
         19 . The water faucet according to  claim 1 ,
 wherein the spout head has a double pipe structure in which an inner pipe accommodating the coupling pipe is inserted in an outer shell, and   the inner pipe extends from a spout to an end part of the outer shell.   
     
     
         20 . The water faucet according to  claim 1 ,
 wherein the water faucet main body is structured to allow replacement from a spout head without a water purification function to another spout head with a water purification function.