Patent Grant
8733386
The present invention relates to a drinking water faucet with air gap to discharge waste water, and more particularly to a drinking water faucet structure that can prevent reflux of waste water generated in the filtering process from contaminating the filtering components.
With the rapid development of the industry, our air, land and water have been excessively contaminated. When the waste air is discharged, it goes with the airflow to different other locations. When it rains, the waste air goes down to the ground with the rain to cause more expansive pollution to the water sources. Or when the industrial wastes are randomly discarded, they can also be taken by the rain to the water source and contaminate it. Although the water would be sent to the purification plant to undergo the processes of sedimentation, disinfection and exposure, these processes cannot eliminate all kinds of contaminants, so it may cause health problems to drink. Furthermore, most water pipes are old, and most people do not clean the water towers on a regular basis, so all kinds of contaminants can be accumulated in the water pipes and water towers, which can be considered a secondary contamination of the water. Therefore, with the concern of clean drinking water, most people filter the tap water before drinking it.
However, when the water is filtered by water filtering devices, a huge amount of waste water can be generated, and the waste water has to be discharged through the discharge tube in the sink. But if simply connecting the waste water tube to the discharge tube, it can be affected by the connected pipe principle and the reflux of waste water may occur to contaminate the filtering components. Therefore, there remains a need for a new and improved drinking water faucet to overcome the problems stated above.
To solve and overcome the problems stated above, the present invention provides a drinking water faucet having an air gap to discharge waste water including a main body, a valve base, a water control unit, a connecting tube and a securing nut. A receiving space that is through and downward is formed inside the main body, and a trough room is connected at a front portion of the receiving space. An upper portion of the receiving space has a shrinking portion to connect a water outlet tube, and an engaging rib is protrudingly formed on top of the shrinking portion of the receiving space, and an air hole of the receiving space is disposed at one side at lower portion of the trough room. A water outlet hole and a water inlet tube are located at upper and lower portions of the valve base respectively, and a water control space is formed at front portion of the valve base while a discharging portion is disposed at a recessed space. A first flow hole and a second flow hole are disposed at upper and lower portions respectively inside the water control space, and the first flow hole and the second flow hole are used to connect the water outlet hole and the water inlet tube. Also, the discharging portion has a waste import section; a waste export section; an n-shaped water tube located at upper portion of the discharging portion to connect the waste import section and waste export section; and a check air hole at upper portion of the waste export section. An engaging slot is located on top of the valve base, and the engaging slot and the engaging rib engage with each other when the valve base is inserted into the receiving space of the main body, so that the valve base can be securely positioned in terms of angle. The water control unit has a water control valve controlled by a handle, and the handle drives the water control valve to rotate, so that the water control valve can control the water (on/off) in the water control space of the valve base. Namely, it controls open/close of the first flow hole and the second flow hole. The connecting tube has an outer water inlet tube, a waste water import tube, and a waste water export tube, which are connected to a fixed plate. The securing nut has a connecting section used to lock the main body with screw. According to the structure stated above, a drinking water faucet having an air gap to discharge waste water is obtained.
Comparing with the conventional arts, the present invention is advantageous because (i) the reflux of waste water can be prevented to contaminate the filtering components by using the combination of the air hole, the discharging portion, the waste water import tube and the waste water export tube, so the drinking water becomes more clean and safe to drink; and (ii) the water inlet tube and the discharging portion on the valve base are formed as one piece, so the number of components of the faucet is reduced to be more competitive in the market.
The detailed description set forth below is intended as a description of the presently exemplary device provided in accordance with aspects of the present invention and is not intended to represent the only forms in which the present invention may be prepared or utilized. It is to be understood, rather, that the same or equivalent functions and components may be accomplished by different embodiments that are also intended to be encompassed within the spirit and scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the art to which this invention belongs. Although any methods, devices and materials similar or equivalent to those described can be used in the practice or testing of the invention, the exemplary methods, devices and materials are now described.
All publications mentioned are incorporated by reference for the purpose of describing and disclosing, for example, the designs and methodologies that are described in the publications that might be used in connection with the presently described invention. The publications listed or discussed above, below and throughout the text are provided solely for their disclosure prior to the filing date of the present application. Nothing herein is to be construed as an admission that the inventors are not entitled to antedate such disclosure by virtue of prior invention.
In order to further understand the goal, characteristics and effect of the present invention, a number of embodiments along with the drawings are illustrated as following:
Referring to
Referring to
When in use, the faucet in the present invention is installed at a sink through the main body (10), and the outer water inlet tube (41) and the waste water import tube (42) are respectively connected to the water tube and waste water tube from the water filtering device, and the waste water export tube (43) is connected to a hose to a discharge tube of the sink. When the user wants to use water, he/she can operate the handle (31) to control the clean water flowing from the outer water inlet tube (41) through the water inlet tube (22) to the valve base (20) and flowing out from the water outlet tube (14), and the user can enjoy the clean water. In the water cleaning process, the waste water generated from the water filtering device can be discharged from the waste water import tube (42), the waste import section (241), the n-shaped water tube (243), the waste export section (242) and the waste water export tube (43) to the discharge tube in the sink (see
In one embodiment, the connecting section (51) of the securing nut (50) has outer threads (see
According to the embodiments discussed above, the present invention is advantageous because (i) the reflux of waste water can be prevented to contaminate the filtering components by using the combination of the air hole (16), the discharging portion (24), the waste water import tube (42) and the waste water export tube (43), so the drinking water becomes more clean and safe to drink; and (ii) the water inlet tube (22) and the discharging portion (24) on the valve base (20) are formed as one piece, so the number of components of the faucet is reduced to be more competitive in the market.
Having described the invention by the description and illustrations above, it should be understood that these are exemplary of the invention and are not to be considered as limiting. Accordingly, the invention is not to be considered as limited by the foregoing description, but includes any equivalents.
| Number | Name | Date | Kind |
|---|---|---|---|
| 3620241 | Brown | Nov 1971 | A |
| 3967638 | Tondreau | Jul 1976 | A |
| 5865209 | Vidal | Feb 1999 | A |
| 7011106 | Kawolics et al. | Mar 2006 | B2 |
| 7357147 | Kawolics et al. | Apr 2008 | B2 |
| 20110126932 | Chan | Jun 2011 | A1 |
| Number | Date | Country | |
|---|---|---|---|
| 20140007967 A1 | Jan 2014 | US |
