Patent Grant
8707982
1. Field of the Invention
The present invention relates to an anti-freeze vacuum breaking structure, and more particularly to an anti-freeze vacuum breaking structure for a faucet that can prevent water being frozen in the faucet in a frigid weather.
2. Description of the Prior Art
With reference to
However, such a conventional anti-freeze faucet can not achieve a vacuum breaking effect due to the intake valve 45 is limited and has an air opening, a diameter of which is limited as well. Accordingly, when stopping a water supply, some waters accumulate and freeze in the chamber 41 of the tube body 40, thus plunging the faucet in a frigid weather.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
The primary object of the present invention is to provide an anti-freeze vacuum breaking structure for a faucet that as stopping a water supply, an aperture of a rod of a handle communicates with an outflow orifice of a shaft bolt of a control valve, and an air feeding effect results from an intake valve of a tube body, thereby obtaining a vacuum breaking effect to prevent water from being accumulated and frozen in a chamber of a tube body.
An anti-freeze vacuum breaking structure for a faucet in accordance with a preferred embodiment of the present invention contains:
a tube body including a chamber defined therein, an inlet formed on one end thereof, an outlet formed on another end thereof, a connecting hole, and an intake valve, the inlet, the outlet, the connecting hole, and the intake valve communicating with the chamber;
a control valve fixed in the chamber of the tube body and including a housing, a shaft bolt, a rod, a stopping sleeve, an upper ceramic piece, a lower ceramic piece, and a seat, the shaft bolt being inserted into the housing and having a connecting segment and an actuating segment relative to the connecting segment, a watering room extending from the actuating segment of the shaft bolt, a through hole extending from the connecting segment to communicate with the watering room, the shaft bolt including an outflow orifice defined on an outer side thereof to communicate with the watering room, the connecting segment and the outflow orifice extending out of the housing, the rod being inserted into the shaft bolt and including an increased shoulder arranged on one end thereof, the shoulder including a first stopping ring fitted thereon, the rod also including a decreased fitting section defined on another end thereof relative to the increased shoulder, the decreased fitting section having a resilient element fitted thereon, an air channel, and an air bore to communicate with the air channel, the rod including a second stopping ring fitted on an outer peripheral wall thereof adjacent to the fitting section, the upper ceramic piece being fitted in the housing to engage and drive the actuating segment of the shaft bolt, the lower ceramic piece being fitted in the housing and contacting with the upper ceramic piece, the seat screwing with the housing and including an intake passed therein;
a handle connected with the connecting hole of the tube body and including a rotating member coupling with a driving stem and inserted in the chamber of the tube body, the driving stem being hollow and including one end with an aperture to connect with the rotating member and including another end fitted with the connecting segment of the shaft bolt of the control valve.
The present invention will be clearer from the following description when viewed together with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment in accordance with the present invention.
Referring to
The tube body 10 includes a chamber 11 defined therein, an inlet 12 formed on one end thereof to connect with an inlet tube, an outlet 13 formed on another end thereof, a connecting hole 14, and an intake valve 15, wherein the inlet 12, the outlet 13, the connecting hole 14, and the intake valve 15 communicate with the chamber 11.
The control valve 20 is fixed in the chamber 11 of the tube body 10 and includes a housing 21, a shaft bolt 22, a rod 23, a stopping sleeve 24, an upper ceramic piece 25, a lower ceramic piece 26, and a seat 27. The housing 21 includes two limiting ribs 211 arranged on an inner wall thereof, two positioning recesses 212 below the two limiting ribs 211, and a screwing section 213 formed on a bottom end of the inner wall thereof. The shaft bolt 22 has a connecting segment 221 and an actuating segment 222 relative to the connecting segment 221, a watering room 223 defined on the actuating segment 222 of the shaft bolt 22, a through hole 224 formed on the connecting segment 221 to communicate with the watering room 223, between the connecting segment 221 and the actuating segment 222 of the shaft bolt 22 are defined an outflow orifice 225 communicating with the watering room 223 and a one-way stop loop 226, and the shaft bolt 22 is inserted into the housing 21 to be limited by the two limiting ribs 211 such that the shaft bolt 22 rotates at a certain angle. The connecting segment 221 and the outflow orifice 225 of the shaft bolt 22 extend out of the housing 21. The rod 23 is inserted into the shaft bolt 22 and includes an increased shoulder 231 arranged on one end thereof, wherein the shoulder 231 includes a first stopping ring 232 fitted thereon, the rod 23 also includes a decreased fitting section 233 defined on another end thereof relative to the increased shoulder 231. The decreased fitting section 223 has a resilient element 234 fitted thereon, an air channel 2331, and an air bore 2332 to communicate with the air channel 2331. The rod 23 includes a second stopping ring 235 fitted on an outer peripheral wall thereof adjacent to the fitting section 233. The stopping sleeve 24 is hollow and is fixed in the watering room 223 of the shaft bolt 22 and includes a stepped outer wall on which a third stopping ring 241 is fitted and an inner wall on which a neck 242 is defined to retain with the increased shoulder 231 and the first stopping ring 232 of the shoulder 231 to generate a close state. The upper ceramic piece 25 is fitted in the housing 21 to engage and drive the actuating segment 222 of the shaft bolt 22 and includes two symmetrical first openings 251. The lower ceramic piece 26 is fitted in the housing 21 and contacts with the upper ceramic piece 25 and includes two symmetrical second openings 261 and two opposite projections 262 mounted on an outer rim thereof to retain with the two positioning recesses 212. The seat 27 includes an intake 271 passed therein and a coupling section 272 with threads formed on an outer wall of an upper end thereof to screw with the screwing section 213 of the housing 21.
The handle 30 is connected with the connecting hole 14 of the tube body 10 and includes a rotating member 31 coupling with a driving stem 32 and inserted in the chamber 11 of the tube body 10. The driving stem 32 is hollow and includes one end with an aperture 321 to connect with the rotating member 31 and another end fitted with the connecting segment 221 of the shaft bolt 22 of the control valve 20.
When turning on the faucet as shown in
When turning off the faucet as illustrated in
While we have shown and described various embodiments in accordance with the present invention, it is clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
| Number | Name | Date | Kind |
|---|---|---|---|
| 6805154 | Dickey et al. | Oct 2004 | B1 |
| 7828005 | Lawson | Nov 2010 | B2 |
| 8402991 | Wu | Mar 2013 | B2 |
| Number | Date | Country | |
|---|---|---|---|
| 20130312845 A1 | Nov 2013 | US |
