Patent Application
20160339457
1. Field of the Invention
The present invention relates a valve core and, more particularly, to a water outlet valve core of wall mounted shower head.
2. Description of the Related Art
Initially, shower heads used to be just devices for watering flower or plotted plants. Afterwards, shower heads were modified for the purpose of shower, making shower heads a common device in bathroom. Some shower heads can be adjusted to spray different patterns of water, such as massage, gentle spray, strong spray, and intermittent pulse or combination modes.
To provide better massage functions, a type of rotor-type shower heads is employed to spray water jets on body to attain effect of massage. However, as the rotors easily get stuck or wear out, loss of the faucet function may arise.
In view of the problems and drawbacks of the conventional techniques, the objective of the present invention is to provide a water outlet valve core of a wall mounted shower head capable of switching strong water flow and weak water flow for the purpose of hydro massage and avoiding the rotors in the shower head getting stuck and being worn out, and a water output device using the water outlet valve core.
To achieve the foregoing objective, the water outlet valve core includes an inlet, two outlets, an annular channel, a flow channel and a protrusion. The inlet is formed in a top of the water outlet valve core.
The two outlets are formed in the bottom of the water outlet valve core.
The annular channel is formed inside the water outlet valve core and communicates with the inlet and the outlets.
The flow channel is conical, is formed inside of the water outlet valve core, is located inside a portion of the water outlet valve core surrounded by the annular channel, and communicates with the inlet, the outlets and the annular channel.
The protrusion is formed on a bottom of the flow channel and is located between the outlets. Preferably, the annular channel takes the form of one of a circle, an oval, a quadrilateral and a pentagon.
Preferably, the annular channel includes two top channels, two bottom channels and two side channels.
The two top channels are defined by a top portion of the annular channel.
The two bottom channels are defined by a bottom portion of the annular channel.
The two side channels are formed between the top channels and the bottom channels, communicate with the respective bottom channels and the respective top channels, and are perpendicularly connected with the respective bottom channels.
Preferably, cross sections of the annular channel and the inlet are rectangular, a width of the inlet is W=1˜3 mm, a length of the inlet is H=3˜4×W, a width of the top channel of the annular channel is B=0.5˜1.5×W, a distance between a top edge of the flow channel and an inner side of the inlet is D=0.4˜1×W, and an angle between an inner side of the flow channel and an inner side of the inlet is a=10°˜15°0
Preferably, the protrusion is trapezoidal, the protrusion has a arced recess, and a slope of two lateral sides of the protrusion is the same as that of an inner wall of the flow channel.
Preferably, water enters the water outlet valve core through the inlet, a first part of water passes through the flow channel and flows out of the outlets, a second part of water being less than the first part of water and passing through the flow channel enters the respective bottom channels and further sequentially passes through the respective side channels and the respective top channels, and is then mixed with the first part of water out of the flow channel to flow out of the respective outlets.
To achieve the foregoing objective, the water output device includes a body, a collar seal, an inner cover, an outer cover and multiple water outlet valve cores.
The collar seal is mounted inside the body to form hermetic seal of the body.
The inner cover is mounted on and covers the collar seal.
The outer cover is mounted on the body to enclose the inner cover, the outer cover between the outer cover and the body.
The multiple water outlet valve cores are mounted between the inner cover and the collar seal. Each water outlet valve core includes an inlet, two outlets, an annular channel, a flow channel and a protrusion.
The inlet is formed in a top of the water outlet valve core.
The two outlets are formed in the bottom of the water outlet valve core.
The annular channel is formed inside the water outlet valve core and communicates with the inlet and the outlets.
The flow channel is conical, is formed inside of the water outlet valve core, is located inside a portion of the water outlet valve core surrounded by the annular channel, and communicates with the inlet, the outlets and the annular channel.
The protrusion is formed on a bottom of the flow channel and is located between the outlets.
Preferably, the annular channel takes the form of one of a circle, an oval, a quadrilateral and a pentagon.
Preferably, the annular channel includes two top channels, two bottom channels and two side channels.
The two top channels are defined by a top portion of the annular channel. The two bottom channels are defined by a bottom portion of the annular channel. The two side channels are formed between the top channels and the bottom channels, communicate with the respective bottom channels and the respective top channels, and are perpendicularly connected with the respective bottom channels.
Preferably, cross sections of the annular channel and the inlet are rectangular, a width of the inlet is W=1˜3 mm, a length of the inlet is H=3˜4×W, a width of the top channel of the annular channel is B=0.5˜1.5×W, a distance between a top edge of the flow channel and an inner side of the inlet is D=0.4˜1×W, and an angle between an inner side of the flow channel and an inner side of the inlet is a=10°˜15°.
The present invention is based on concepts of jet flow within limited space, in which jet flow is a stream of fluid that is ejected into a surrounding flow and exchanges momentum with the surrounding flow to create an entrainment phenomenon. Flow field of the entrained flow is confined by fixed walls of the limited space to cause interference between the fixed walls and the jet flow. To compensate the flow driven away by the entrainment effect, fluid passing through narrow flow paths tends to flow to side portions of the flow paths (hereinafter left side used as an example). According to Bernoulli's principle, if a small volume of fluid is flowing horizontally from a region of high pressure to a region of low pressure, then there is more pressure generated in the rear than in the front. This gives a net force on the volume of the fluid, accelerating the fluid along the streamlines. When water flows into a narrow channel and pressure of the water flow on the left side wall of the channel decreases, jet flow deviates toward the left side wall, and is finally attached to the left side wall to flow. When two side walls of a channel through which a jet flow passes face each other and are symmetrical, the jet will be attached to one of the side walls because of the turbulence from the jet flow itself, and it's called the Coanda effect.
Jet switching is a process that pushes jet flow from one of two side walls to the other side wall. Upon generation of jet flow, some ways are used to increase the pressure in a low-pressure vortex, (backflow effect of fluid is taken as an example), then increase the curvature radius of the jet flow, and further increase the size of the vortex, thereby leading the jet flow to attach to inclined and symmetrical side walls.
The advantages of the water outlet valve core with two outlets reside in water flowing out with different water pressure for implementing the effect of hydro massage, such that conventional rotor-type shower heads won't be easily stuck or worn out to cause loss of massage functions.
The detailed description of the drawings particularly refers to the accompanying figures in which:
The purpose, construction, features, functions and advantages of the present invention can be appreciated and understood more thoroughly through the following detailed description with reference to the attached drawings.
With reference to
The flow channel 4 is conical.
The protrusion 5 is trapezoidal, is formed on a bottom of the flow channel 4, is located between the outlets 2, and has an arced recess formed on a top surface of the protrusion 5. A slope of two lateral sides of the protrusion 5 is the same as that of an inner wall of the flow channel 4.
With reference to
With reference to
The present invention is based on concepts of jet flow within limited space, in which jet flow is a stream of fluid that is ejected into a surrounding flow and exchanges momentum with the surrounding flow to create an entrainment phenomenon. Flow field of the entrained flow is confined by fixed walls of the limited space to cause interference between the fixed walls and the jet flow. To compensate the flow driven away by the entrainment effect, fluid passing through narrow flow paths tends to flow to side portions of the flow paths (hereinafter left side used as an example). According to Bernoulli's principle, if a small volume of fluid is flowing horizontally from a region of high pressure to a region of low pressure, then there is more pressure generated in the rear than in the front. This gives a net force on the volume of the fluid, accelerating the fluid along the streamlines. When water flows into a narrow channel and pressure of the water flow on the left side wall of the channel decreases, jet flow deviates toward the left side wall, and is finally attached to the left side wall to flow. When two side walls of a channel through which a jet flow passes face each other and are symmetrical, the jet will be attached to one of the side walls because of the turbulence from the jet flow itself, and it's called the Coanda effect.
Jet switching is a process that pushes jet flow from one of two side walls to the other side wall. Upon generation of jet flow, some ways are used to increase the pressure in a low-pressure vortex, (backflow effect of fluid is taken as an example), then increase the curvature radius of the jet flow, and further increase the size of the vortex, thereby leading the jet flow to attach to inclined and symmetrical side walls.
The water outlet valve core has two outlets 2. Based on jet flow theory, when water flows through the water outlet valve core, 1 jet switching causes high water flow and low water flow to switch so as to attain the effect of hydro massage, such that conventional rotor-type shower heads won't be easily stuck or worn out to cause failure of massage functions.
When water enters the water outlet valve core through the inlet 1, the water passing through the flow channel 4 generates vortex and jet flow because of the blockage of the protrusion 5. The arced recess 6 serves to prevent the protrusion 5 from being worn out by water flow.
With reference to
The body 7 has a water inlet 71 communicating with a water hose. The collar seal 10 is mounted inside the body 1 to form hermetic seal of the body 1. The inner cover 8 is mounted on and covers the collar seal 10, and has multiple holes 81 formed through the inner cover 8. The water outlet valve cores K are mounted between the inner cover 8 and the collar seal 10. The outer cover 9 is mounted on the body 1 to enclose the inner cover 8, the multiple water outlet valve cores K and the outer cover 9 between the outer cover 9 and the body 1, and has multiple holes 91 formed through the outer cover 9 and corresponding to the multiple holes 81 of the inner cover 8. The outlets 2 of each water outlet valve core K is directed corresponding holes 81, 91 of the inner cover 8 and the outer cover 9.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201510258552.7 | May 2015 | CN | national |
