Shower Soap Dispenser and Cartridge

A shower soap dispenser installed in a water supply pipe and a shower head of a shower system and comprising:

• a water pipe including an upper segment for connecting with the water supply pipe, a lower segment for coupling with the shower head, and a seat defined between and communicating with the upper segment and the lower segment;
• a channel passing through the upper segment, the lower segment, and the seat;
• a pipe joint connecting with the seat and extending outwardly from an outer wall of the water pipe;
• the seat having a groove defined therein and communicating with the channel;
• the pipe joint having a tunnel defined therein;
• at least one feeding hole formed on the seat so as to communicate with the groove and the tunnel;
• the pipe joint also having an abutting portion and at least one orifice defined on a distal end thereof;
• a shower soap cartridge including a body, a seal element, a plug, a cover, and a resilient element, wherein
• the body has a chamber portion, a first connecting portion mounted on one end of the chamber portion, and a second connecting portion disposed on another end of the chamber portion;
• the chamber portion has a cylindrical cavity defined therein;
• the first connecting portion is coupled with the pipe joint of the water pipe and has an outlet communicating with the cylindrical cavity, and a diameter of the outlet is smaller than that of the cylindrical cavity, the second connecting portion has an intake communicating with the cylindrical cavity;
• the seal element is placed into the body from the intake and axially moves in the cylindrical cavity so as to stop the outlet communicating with the cylindrical cavity;
• and between an external rim of the seal element and the cylindrical cavity is defined a slit;
• when the first connecting portion of the body couples with the pipe joint of the water pipe, the seal element is pushed by the abutting portion of the pipe joint to move toward the intake, thus removing from the outlet;
• the plug is placed into the body from the intake and axially moves in the cylindrical cavity, such that between the plug and the seal element is defined a store room so as to store a soap liquid filled from the intake of the body, and as the soap liquid runs out, the plug is biased against the seal element;
• the cover is connected with the second connecting portion of the body so as to close the intake;
• the resilient element is fixed between the cover and the plug so that the plug is pushed by the resilient element to press a soap liquid in the store room toward the outlet during which the soap liquid forces on the seal element, so before the first connecting portion of the body couples with the pipe joint of the water pipe, the seal element stops the outlet communicating with the cylindrical cavity, and when the first connecting portion of the body is in connection with the pipe joint of the water pipe, the soap liquid is pressed into the tunnel from the slit through the at least one orifice;
• an on/off valve is installed on the seat of the water pipe and includes a housing fixed in the groove and moving between a close position and an open position, the housing includes a valve hole communicating with the channel and closes the at least one feeding hole when the on/off valve is fixed at the close position, such that a soap liquid in the tunnel of the pipe joint does not flow into the channel via the at least one feeding hole, and when the on/off valve is fixed at the open position, the housing removes from the at least one feeding hole, so the soap liquid in the tunnel of the pipe joint flows into the channel via the at least one feeding hole and then mixes with a shower water flowing through the channel so as to produce a shower soap water, thereafter the shower soap water is guided into the shower head.