Patent Application
20110272496
1. Field of the Invention
The present invention relates to a shower head and, more particularly, to a shower head for a bathroom.
2. Description of the Related Art
A conventional shower head 50 in accordance with the prior art shown in
However, when the water inlet port 511 of the locking screw member 51 is connected to the water source, a closed vacuum condition is formed in the inner space of the shower head 50 so that the inner space of the shower head 50 has a larger water pressure to push and inject the water from the nozzle 54 quickly and violently to form multiple concentrated and convergent water beams, thereby decreasing the flushing angle and area of the shower head 50. In addition, the water beams are injected outward from the nozzle 54 strongly due to the larger water pressure in the shower head 50, thereby easily causing an uncomfortable sensation to the user.
In accordance with the present invention, there is provided a shower head, comprising a nozzle unit, a quick connector mounted on the nozzle unit, and a bushing mounted in the quick connector. The nozzle unit includes a nozzle, a universal connector having a spherical first end rotatably mounted on the nozzle, and a locking screw member mounted on a second end of the universal connector. The quick connector has a first end provided with an outer threaded portion screwed into the locking screw member of the nozzle unit. The quick connector has a second end provided with a threaded mounting portion. The quick connector has an inner portion formed with a flow channel. The flow channel of the quick connector has a bottom formed with a reduced water outlet which has a diameter smaller than that of the flow channel. The quick connector has a peripheral wall formed with two radially opposite air conducting holes. The air conducting holes of the quick connector are connected to the flow channel. The flow channel of the quick connector has a peripheral wall formed with two radially opposite limit portions. The bushing is fully received in the flow channel of the quick connector and has an inner wall formed with a flow conduit connected to the flow channel of the quick connector. The bushing has a peripheral wall formed with two radially opposite air conducting apertures aligning with the air conducting holes of the quick connector respectively. The air conducting apertures of the bushing are connected to the flow conduit. The bushing has an outer wall formed with two radially opposite locking portions locked in the limit portions of the quick connector. The primary objective of the present invention is to provide a shower head having a larger flushing angle.
According to the primary advantage of the present invention, when the water flows through the shower head, the ambient air is introduced through the air conducting holes of the quick connector and the air conducting apertures of the bushing into the flow conduit of the bushing to break the vacuum state in the shower head and to perturb the water flow in the shower head so as to produce a turbulent flow in the shower head so that the water flow injected from the nozzle unit is broken and divided into multiple straight water beams and multiple irregular water bubbles so as to increase the flushing angle and area of the shower head and to enhance the water flushing effect of the shower head.
According to another advantage of the present invention, the ambient air is introduced through the air conducting holes of the quick connector and the air conducting apertures of the bushing into the flow conduit of the bushing to reduce the water pressure in the shower head so that the water is injected from the nozzle unit smoothly and stably so as to provide a comfortable sensation to the user.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
Referring to the drawings and initially to
The nozzle unit 30 includes a nozzle 31, a universal connector 33 having a spherical first end rotatably mounted on the nozzle 31, and a locking screw member 34 mounted on a second end of the universal connector 33. The nozzle 31 of the nozzle unit 30 has a peripheral wall provided with a control handle 32 to regulate a water flow injected from the nozzle 31 of the nozzle unit 30.
The quick connector 20 has a first end provided with an outer threaded portion 24 screwed into the locking screw member 34 of the nozzle unit 30. The quick connector 20 has a second end provided with a threaded mounting portion 22 that is connected to a water source (not shown). The quick connector 20 has an inner portion formed with a stepped flow channel 21. The flow channel 21 of the quick connector 20 extends axially through the quick connector 20 and has a bottom formed with a reduced water outlet 23 which has a diameter smaller than that of the flow channel 21. The water outlet 23 of the quick connector 20 is formed on the second end of the quick connector 20. The quick connector 20 has a peripheral wall formed with two radially opposite air conducting holes 25. The air conducting holes 25 of the quick connector 20 are connected to the flow channel 21. The air conducting holes 25 of the quick connector 20 are disposed between the outer threaded portion 24 and the threaded mounting portion 22 of the quick connector 20. The flow channel 21 of the quick connector 20 has a peripheral wall formed with two radially opposite limit portions 26. Each of the limit portions 26 of the quick connector 20 is an elongate slot which extends axially in the flow channel 21 of the quick connector 20.
The bushing 10 is a hollow stepped cylinder that is made of plastic material. The bushing 10 is fully received in the flow channel 21 of the quick connector 20 and has an inner wall formed with a flow conduit 11 connected to the flow channel 21 of the quick connector 20. The flow conduit 11 of the bushing 10 extends axially through the bushing 10 and is connected between the flow channel 21 and the water outlet 23 of the quick connector 20. The flow conduit 11 of the bushing 10 has a circular shape and has an upper end formed with an inner threaded section 111. The bushing 10 has a peripheral wall formed with two radially opposite air conducting apertures 12 aligning with the air conducting holes 25 of the quick connector 20 respectively. The air conducting apertures 12 of the bushing 10 are connected to the flow conduit 11. The bushing 10 has an outer wall formed with two radially opposite locking portions 13 locked in the limit portions 26 of the quick connector 20 so that the bushing 10 is positioned in the flow channel 21 of the quick connector 20 exactly. Each of the locking portions 13 of the bushing 10 is an elongate rib which extends axially on the bushing 10.
The shower head further comprises a first O-ring 14 mounted on the outer wall of the bushing 10 and located in the flow channel 21 of the quick connector 20, and a second O-ring 27 mounted on the outer wall of the quick connector 20 and located in the locking screw member 34 of the nozzle unit 30. The first O-ring 14 is pressed between the bushing 10 and the quick connector 20 to provide an air-tight effect between the bushing 10 and the quick connector 20. The second O-ring 27 is pressed between the quick connector 20 and the locking screw member 34 of the nozzle unit 30 to provide an air-tight effect between the quick connector 20 and the locking screw member 34 of the nozzle unit 30.
The shower head further comprises a flow guide member 40 secured in the flow conduit 11 of the bushing 10 to interrupt the flow conduit 11 of the bushing 10. The flow guide member 40 has an upper end provided with a threaded disk 41 screwed into the inner threaded section 111 of the bushing 10. The threaded disk 41 of the flow guide member 40 has a top whose height is higher than that of each of the air conducting apertures 12 of the bushing 10. The flow guide member 40 has a second end provided with a flow tube 43 which is extended into the flow conduit 11 of the bushing 10. The flow tube 43 of the flow guide member 40 has a bottom whose height is lower than that of each of the air conducting apertures 12 of the bushing 10. The flow guide member 40 has an inner portion formed with a through hole 42 which is connected between the flow channel 21 of the quick connector 20 and the flow conduit 11 of the bushing 10. The through hole 42 of the flow guide member 40 extends axially through the threaded disk 41 and the flow tube 43 of the flow guide member 40. The flow guide member 40 has a top face formed with an elongate tool insertion slit 44 to allow insertion of a hand tool (not shown), such as a screwdriver and the like.
In operation, referring to
At this time, the air conducting apertures 12 of the bushing 10 align with the air conducting holes 25 of the quick connector 20 respectively so that the ambient air is introduced through the air conducting holes 25 of the quick connector 20 and the air conducting apertures 12 of the bushing 10 into the flow conduit 11 of the bushing 10 to break the vacuum state in the shower head and to perturb the water flow in the shower head so as to produce a turbulent flow in the shower head so that the water flow injected from the nozzle unit 30 is broken and divided into multiple straight water beams and multiple irregular water bubbles so as to increase the flushing angle and area of the shower head.
Accordingly, when the water flows through the shower head, the ambient air is introduced through the air conducting holes 25 of the quick connector 20 and the air conducting apertures 12 of the bushing 10 into the flow conduit 11 of the bushing 10 to break the vacuum state in the shower head and to perturb the water flow in the shower head so as to produce a turbulent flow in the shower head so that the water flow injected from the nozzle unit 30 is broken and divided into multiple straight water beams and multiple irregular water bubbles so as to increase the flushing angle and area of the shower head and to enhance the water flushing effect of the shower head. In addition, the ambient air is introduced through the air conducting holes 25 of the quick connector 20 and the air conducting apertures 12 of the bushing 10 into the flow conduit 11 of the bushing 10 to reduce the water pressure in the shower head so that the water is injected from the nozzle unit 30 smoothly and stably so as to provide a comfortable sensation to the user.
Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.
