Water outlet device

1. A water outlet device, comprising:

at least one rotatable driving member;

at least one injector; and

a main body with a plurality of water outflow passages, wherein:

the main body comprises at least one accommodating cavity,

each of the at least one accommodating cavity is connected to a corresponding one of the plurality of water outflow passages,

each of the at least one accommodating cavity is disposed above the corresponding one of the plurality of water outflow passages,

each of the at least one rotatable driving member and a corresponding one of the at least one injector are disposed in a corresponding one of the at least one accommodating cavity,

each of the at least one rotatable driving member is driven to rotate by water flow,

each of the at least one rotatable driving member drives the corresponding one of the at least one injector to rotate in the corresponding one of the at least one accommodating cavity,

each of the at least one injector comprises at least one injection hole,

the at least one injection hole is connected to the corresponding one of the plurality of water outflow passages,

a water outflow direction of the at least one injection hole and an axial direction of the corresponding one of the plurality of water outflow passages forms an angle,

a collision between water flowing out from the at least one injection hole and inner sidewalls of the corresponding one of the plurality of water outflow passages changes as a function of the angle, and

the inner sidewalls of the plurality of water outflow passages are tapered.

2. The water outlet device according to claim 1 , wherein, in a cross-sectional view of each of the at least one injection hole in the axial direction of the corresponding one of the plurality of water outflow passages:

a first sidewall of each of the at least one injection hole adjacent to a central axis of the injector is sloped relative to the axial direction of the corresponding one of the plurality of water outflow passages, and

a second sidewall of each of the at least one injection hole away from the central axis of the injector is parallel to the axial direction of the plurality of water outflow passages.

3. The water outlet device according to claim 2 , wherein:

a radial dimension of each of the inner sidewalls of the plurality of water outflow passages gradually becomes smaller in a direction of the water flow.

4. The water outlet device according to claim 2 , wherein:

a radial dimension of each of the inner sidewalls of the plurality of water outflow passages gradually becomes larger in a direction of the water flow.

5. The water outlet device according to claim 1 , wherein:

each of the at least one injector comprises at least two injection holes,

at a surface of the at least one injector facing the corresponding one of the plurality of water outflow passages, a center of a first injection hole of the at least two injection holes is spaced a first distance from a central axis of the injector and a center of a second injection hole of the at least two injection holes is spaced a second distance from the central axis of the injector, and

the second distance is greater than the first distance.

6. The water outlet device according to claim 5 , wherein:

an angle between a water outflow direction of the first injection hole and the axial direction of the corresponding one of the plurality of water outflow passages is different than an angle between a water outflow direction of the second injection hole and the axial direction of the corresponding one of the plurality of water outflow passages.

7. The water outlet device according to claim 6 , wherein:

the angle between the water outflow direction of the first injection hole and the axial direction of the corresponding one of the plurality of water outflow passages is smaller than the angle between the water outflow direction of the second injection hole and the axial direction of the corresponding one of the plurality of water outflow passages.

8. The water outlet device according to claim 5 , wherein:

a number of injection holes of the at least one injector having centers spaced the first distance from the central axis of the injector is different than a number of injection holes of the at least one injection having centers spaced the second distance from the central axis of the injector.

9. The water outlet device according to claim 1 , wherein:

a radial dimension of each of the inner sidewalls of the plurality of water outflow passages gradually becomes smaller in a direction of the water flow.

10. The water outlet device according to claim 9 , wherein:

each of the inner sidewalls of the plurality of water outflow passages is disposed with a plurality of regulating strips,

the plurality of regulating strips extend in the direction of the water flow, and

the plurality of regulating strips are disposed along a circumference of each of the inner sidewalls at intervals.

11. The water outlet device according to claim 10 , wherein:

the rotatable driving member is an impeller,

the main body comprises at least one water oblique inlet on a first side away from the plurality of water outflow passages, and

water flowing from the at least one water oblique inlet impacts the impeller and drives the impeller to rotate.

12. The water outlet device according to claim 11 , wherein:

a first side of the impeller adjacent to the injector extends outwardly to form an insert bar in a direction of a central axis of the impeller, and

the injector comprises an insert hole for coupling with the insert bar.

13. The water outlet device according to claim 1 , wherein, in a cross-sectional view of each of the at least one injection hole in the axial direction of the corresponding one of the plurality of water outflow passages:

a first sidewall of each of the at least one injection hole adjacent to a central axis of the injector is sloped relative to the axial direction of the corresponding one of the plurality of water outflow passages,

a second sidewall of each of the at least one injection hole away from the central axis of the injector is sloped relative to the axial direction of the corresponding one of the plurality of water outflow passages, and

a first angle between the second sidewall and the axial direction of the corresponding one of the plurality of water outflow passages is smaller than a second angle between the first sidewall and the axial direction of the corresponding one of the plurality of water outflow passages.

14. The water outlet device according to claim 1 , wherein:

a radial dimension of each of the inner sidewalls of the plurality of water outflow passages gradually becomes larger in a direction of the water flow.