Shower head with water stop function and waterway switch function

1. A shower head having, in combination, a water stopping function and a waterway switching function for switching among multiple waterways, comprising:

a housing connected to a water source;

a switching device that is disposed in the housing and that comprises

a switching mechanism that switches among the multiple waterways, and

a swing mechanism that is connected to the switching mechanism and that pushes the switching mechanism to switch from one waterway of the multiple waterways to another waterway of the multiple waterways;

a water stop device that is disposed in the housing and that comprises a valve shaft and a valve spool which are connected together so that the valve shaft drives the valve spool to move axially into an open position or into a closed position to turn on or off water supply from the water source to the shower head; and

a control device that comprises a button; and a linking mechanism, a central portion of the button being pivotally mounted to the housing and the linking mechanism being connected between the valve shaft and the button so that pressing the button drives the valve shaft,

wherein, when a front portion of the button is pressed, the button pivots to push the swing mechanism to switch from the one waterway to the another waterway, and the button drives the linking mechanism to cause the valve spool to turn on the water supply to the shower head, and

wherein, when a rear portion of the button is pressed, the button pivots to pull the linking mechanism to cause the valve spool to turn off the water supply to the shower head.

2. The shower head according to claim 1 ,

wherein the linking mechanism comprises a push rod and a pendulum rod,

wherein a rear portion of the button is disposed with a chamber, the push rod being rotatably disposed in the chamber, and the pendulum rod being rotatably disposed in the chamber,

wherein a top portion of the pendulum rod is connected to the valve shaft,

wherein a central portion of the pendulum rod is disposed with a groove,

wherein, when the front portion of the button is pressed, the button pivots to drive the push rod to rotate and cause a front-end portion of the push rod to separate from the pendulum rod, and

wherein, when the rear portion of the button is pressed, the button pivots to drive the push rod to rotate and cause the front-end portion of the push rod to move out of the groove and to abut against the pendulum rod.

3. The shower head according to claim 2 , wherein a rear end portion of the push rod has defined therein an elongated through hole, the button is disposed with a fixing pin, and the fixing pin passes through the elongated through hole.

4. The shower head according to claim 1 ,

wherein the housing is disposed with a block column;

wherein the water stop device further comprises an elastic element that is configured to apply an elastic force to the valve spool to cause the valve spool to move to the open position, and

wherein the linking mechanism is abuttable against the block column.

5. The shower head according to claim 4 ,

wherein the housing further comprises a case; an assembly base including ends; and a connecting pipe disposed in the case,

wherein the central portion of the button is pivotally mounted to the assembly base, and the block column is disposed at the assembly base,

wherein one end of the assembly base is disposed with a shaft sleeve that is sleeved on the connecting pipe, and one end of the valve shaft extends axially out of the shaft sleeve to connect to the linking mechanism, and

wherein the valve spool has ends and one end of the valve spool is connected to the valve shaft and another end of the valve spool is inserted into the connecting pipe.

6. The shower head according to claim 5 ,

wherein the connecting pipe is disposed with a plug base having defined therein a sliding groove,

wherein the another end of the valve spool is movably disposed in the sliding groove and;

wherein a water passage is formed between the plug base and an internal wall of the connecting pipe.

7. The shower head according to claim 6 , wherein the connecting pipe has defined therein a through hole that is connected to the sliding groove, and air in the sliding groove exhausts out of the shower head through the through hole.

8. The shower head according to claim 6 ,

wherein a position base is disposed in the shaft sleeve and has defined therein a guiding groove in which the another end of the valve spool is slidably disposed and in which the elastic element is disposed and is pressed onto the valve spool,

wherein a water passage is formed between the position base and an internal wall of the shaft sleeve, and

wherein the valve spool has a thin center and two thick ends, the two thick ends having equal cross-sectional areas.

9. The shower head according to claim 1 , wherein the housing comprises a cover portion in which the switching device is disposed; and a handle portion at which the water stop device is disposed.

10. The shower head according to claim 1 ,

wherein, when the rear portion of the button is pressed and then released, the valve spool remains in the closed position, and

wherein, when the front portion of the button is pressed and then released, the valve spool remains in the open position.

11. The shower head according to claim 1 ,

wherein, when in a water supplying state and the front portion of the button is pressed, the button pivots to push the swing mechanism to achieve a waterway switch,

wherein, when in a water stop state and the front portion of the button is pressed, the button pivots to drive the linking mechanism to make the valve spool turn on the water supply to the shower head, and

wherein, when the front portion of the button is continuously pressed, the button pushes the swing mechanism to achieve the waterway switch.

12. The shower head according to claim 1 , wherein the switching mechanism comprises a reset spring; a connecting bar; a ratchet; a ratchet wheel; and a stop block,

wherein, when the front portion of the button is pressed, the swing mechanism pushes the connecting bar to move forwardly to drive the ratchet to rotate to drive the ratchet wheel to rotate and to achieve a waterway switch, and

wherein, when the button is released, under the action of the reset spring, the connecting bar drives the ratchet to move backwardly until the ratchet abuts against the stop block to cause the button to reset.