Switch valve and shower head applied with the switch valve

Patent metadata

Field	Value
Publication number	US-9829116-B2
Application number	US-201514837517-A
Country	US
Kind code	B2
Filing date	Aug 27, 2015
Priority date	Aug 27, 2015
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

A switch valve includes a fixation portion and a water diversion plate, the fixation portion, a water diversion cavity connected to an inlet waterway, at least two diversion waterways, and a water diversion plate. A universal driving shaft is rotatably connected to the fixation portion and is inserted to the water diversion cavity. The driving mechanism is connected to the universal driving shaft. The water diversion plate and the universal driving shaft rotate synchronously. The bottom of the water diversion cavity is fixedly disposed with a first gear ring. The water diversion plate is fixedly disposed with a second gear ring which engages with the first gear ring. When the driving mechanism drives the water diversion plate to rotate in a preset angle, it slides along the universal driving shaft. The inlet waterway is switched to connect to the diversion waterways by the rotation of the water diversion plate.

First claim

The invention claimed is:

1. A switch valve, comprising:
a fixation portion including an inlet waterway, a water diversion cavity connected to the inlet waterway and at least two diversion waterways;
a water diversion plate disposed in the water diversion cavity;
a universal driving shaft rotatably connected to the fixation portion and inserted into the water diversion cavity;
a driving mechanism connected to the universal driving shaft, the water diversion plate and the universal driving shaft rotate synchronously, the water diversion plate is in sliding connection with the universal driving shaft, a bottom of the water diversion cavity being fixedly disposed with a first gear ring, the water diversion plate being fixedly disposed with a second gear ring, the first gear ring being engaged to the second gear ring,
when the driving mechanism drives the water diversion plate to rotate in a preset angle by the universal driving shaft, the water diversion plate slides forth and back along the universal driving shaft, and the inlet waterway is switched to be connected to the diversion waterways by the rotation of the water diversion plate,
wherein the first gear ring comprises first teeth that are arranged in an annular array, the second gear ring comprises second teeth that are arranged in an annular array, the first teeth and the second teeth being ratchets so that the water diversion plate rotates unidirectionally.

2. The switch valve according to claim 1 , wherein the driving mechanism comprises a rotation plate and a driving unit, the rotation plate is fixedly connected to the universal driving shaft, the rotation plate is placed on the outer side of the water diversion cavity, the driving unit is connected to the rotation plate for driving the rotation plate to rotate.

3. The switch valve according to claim 1 , wherein the bottom of the water diversion cavity has a concave groove, the first gear ring is disposed on the bottom of the concave groove; the bottom surface of the water diversion plate protrudes with a protruding ring, the second gear ring is disposed on the end face of the protruding ring, the protruding ring is coupled to the concave groove.

4. The switch valve according to claim 1 , wherein the preset angle is a multiple of central angle degree of each ratchet of the first gear ring, so that when the water diversion plate rotates in a preset angle, the water diversion plate slides forth and back.

5. The switch valve according to claim 2 , wherein the rotation plate is disposed with ratchets at the outer side to form a ratchet wheel; the driving unit comprises a button movably connected to the fixation portion, a slide block in sliding connection with the fixation portion and a pawl fixation connected to the fixation portion; the button is connected to the slide block in driving way, the button is configured to drive the slide block to slide, the pawl is disposed with a dangling pawl end, the pawl end abuts against the ratchet of the ratchet wheel, the slide block abuts against the pawl, the slide block slides forth and back to elastically deform the pawl, so that the pawl is configured to drive the ratchet wheel to rotate in a preset angle.

6. The switch valve according to claim 2 , wherein the preset angle is a multiple of central angle degree of each ratchet of the first gear ring, so that when the water diversion plate rotates in a preset angle, the water diversion plate slides forth and back along the universal shaft.

7. The switch valve according to claim 5 , wherein
the driving unit further comprises a swing base, the button is pivoted to the fixation portion in swinging way, the swing base is pivoted to the fixation portion in swinging way;
one end of the button abuts against one end of the swing base, so that the button is configured to swing the swing base, the other end of the swing base abuts against the slide block, so that the swing base is configured to swing to drive the slide block to slide.

8. The switch valve according to claim 5 , wherein the preset angle is a multiple of central angle degree of each ratchet of the first gear ring, so that when the water diversion plate rotates in a preset angle, the water diversion plate slides forth and back along the universal shaft.

9. The switch valve according to claim 7 , wherein the swing base is V shaped, the common end of the V shaped swing base is pivoted to the fixation portion, the diverging ends of the V shaped swing base are respectively coupled to the button and the slide block.

10. The switch valve according to claim 7 , wherein the fixation unit comprises a water diversion body and a fixation base, the water diversion body and the fixation base are fixedly connected together to form the water diversion cavity, the fixation base has an inlet passage connected to the water diversion cavity to form a part of the inlet waterway, the universal driving shaft is rotatably connected to the fixation base, the slide block is in sliding connection with the fixation base; the swing base is pivoted to the fixation base; the fixation base is fixedly disposed with a button base, the button is pivoted to the button base.

11. The switch valve according to claim 7 , wherein the preset angle is a multiple of central angle degree of each ratchet of the first gear ring, so that when the water diversion plate rotates in a preset angle, the water diversion plate slides forth and back along the universal shaft.

12. The switch valve according to claim 9 , wherein the preset angle is a multiple of central angle degree of each ratchet of the first gear ring, so that when the water diversion plate rotates in a preset angle, the water diversion plate slides forth and back along the universal shaft.

13. A shower head applied with the switch valve according to claim 10 , wherein the fixation unit further comprises a main body, an outlet cover plate and a rear cover, the main body and the rear cover are fixedly connected to form an accommodating room, the outlet cover plate, the water diversion body and the fixation base are fixedly connected in the accommodating room, the main body, the outlet cover plate and the water diversion body are fixedly connected to form the at least two diversion waterways.

14. The switch valve according to claim 10 , wherein the preset angle is a multiple of central angle degree of each ratchet of the first gear ring, so that when the water diversion plate rotates in a preset angle, the water diversion plate slides forth and back along the universal shaft.

Assignees

• Zhou Huasong

Inventors

• Xu Wencong
• Wang Shigang
• Gong Hailang
• Zhou Huasong

Classifications

• F16K31/535 Primary

  for rotating valves (F16K31/54 takes precedence) · CPC title

• B05B1/1636

  by relative rotative movement of the valve elements (B05B1/1672 takes precedence) · CPC title

• F16K27/045

  with pivotal obturating members · CPC title

• B05B1/18

  Roses; Shower heads · CPC title

• F16K11/074

  with flat sealing faces · CPC title