| 摘要 |
A ceramic valve includes a casing, a drive seat, a coupling seat, a rotary block and a fixed block sequentially mounted into the casing, wherein a braking shaft is pivotally connected to the drive seat and extends through a top of the casing. A pedestal is sealingly secured on a bottom of the casing for positioning the drive seat, the coupling seat, the rotary block and the fixed block. The rotary block is moved relative to the fixed block to guide cold water into the ceramic valve when the ceramic valve is in a middle section and the braking rod is operated to an inclined status. |
| 主权项 |
1. A ceramic valve with a middle section having a cold water supply function, comprising a casing, a drive seat, a coupling seat, a rotary block and a fixed block sequentially mounted into the casing, wherein a braking shaft is pivotally connected to the drive seat and extends through a top of the casing, a pedestal sealingly secured on a bottom of the casing for positioning the drive seat, the coupling seat, the rotary block and the fixed block, wherein:
the casing is a hollow structure and has a protrusion extending therefrom, wherein a top opening is defined in a distal end of the protrusion and a bottom opening is defined in the bottom of the casing; the drive seat includes a lower plate and a tubular portion upward extending from the lower plate, the lower plate abutting against a lower end of the protrusion of the casing and the tubular portion rotatably received in the protrusion, the drive seat including a cavity centrally defined therein; the braking rod is pivotally connected to the tubular portion of the drive seat by a pin, the braking rod including a toggle end extending through drive seat and received in the coupling seat, and a trigger formed on a top end of the braking rod, wherein the trigger upwardly extending through the drive seat; the pedestal is secured in the bottom opening and includes a cold water inlet, a hot water inlet and an outlet respectively defined therein, wherein the cold water inlet guides cold water into the ceramic valve, the hot water inlet guides hot water into the ceramic valve and the outlet allows the mixed water flowing out of the ceramic valve; the fixed block is securely and sealingly disposed on the top of the pedestal, the fixed block including a first through hole, a second through hole and a third through hole respectively defined therein, wherein the first through hole, the second through hole and the third through hole respectively communicate with the cold water inlet, the hot water inlet and the outlet in the pedestal; the rotary block is rotatably disposed on the fixed block, the rotary block including a tunnel defined therein, wherein the tunnel selectively communicates with the first through hole, the second through hole and the third through hole when the rotary block is operated to be rotated relative to the fixed block by the braking the rod; the coupling seat is disposed between the rotary block and the lower plate of the drive seat, wherein the coupling seat is synchronously rotated with the rotary block, a trough defined in the top face of the coupling seat for receiving the toggle end of the braking rod; and a biased fulcrum unit is disposed between the drive seat and the coupling seat, the biased fulcrum having a flanged protrusion downward extending from an edge of the lower plate and an indentation defined in the top face of the coupling seat, wherein the flanged protrusion is received in the indentation; whereby the ceramic valve provides cold water when being in the middle section and pulling the braking rod from an upright status to an inclined status and then the tunnel in the rotary block is moved to communicate with the first through hole in the fixed block to achieve the cold water function in the middle section of the ceramic valve A in accordance with the present invention, wherein the first through hole communicates with the cold water inlet 41 in the pedestal. |
