| CPC F16K 11/0743 (2013.01) [E03C 1/04 (2013.01)] | 8 Claims |
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1. A water control valve comprising a valve shell, a driving valve disc, a fixed valve disc, a valve base, a temperature limiting member, and a balance valve;
wherein the valve shell has a control base installed therein; a sliding block, the driving valve disc, and the fixed valve disc are sequentially stacked below the control base in the valve shell, and a valve stem pivotally connected in the control base is adapted to upwardly protrude out from the valve shell; the valve stem has a pulling portion at the bottom end thereof, and the pulling portion is engaged with the sliding block while the sliding block is engaged with the driving valve disc, so that by operating the valve stem to move the sliding block, the driving valve disc is driven by the sliding block to have translation and to have rotation after translation, so as to change the relative positions between the driving valve disc and the fixed valve disc, thereby controlling the on/off operation of the water flow, and adjusting the mixing ratio of cold and hot water and the amount of water flow; the valve base is coupled at the lower end of the valve shell to block and keep the fixed valve disc, the driving valve disc, the sliding block, and the control base in the valve shell; the valve base comprises an upper base and a lower base, and a water separator is formed between the upper base and the lower base; both of the upper base and the lower base have the inner spaces so as to accommodate the temperature limiting member therein; the temperature limiting member has a first cap, a support sleeve, a temperature sensor, a water stop jacket, and a spring, and the balance valve is positioned between the lower base and the water separator;
wherein the bottom surface of the driving valve disc is respectively concaved to form a first cold water hole and a first hot water hole, and a first extending portion and a second extending portion are respectively formed at one side of the first cold water hole and one side of the first hot water hole so as to increase the coverages of the first cold water hole and the first hot water hole;
wherein the fixed valve disc has a second cold water hole and a second hot water hole penetrating the center portion thereof, and the fixed valve disc comprises a third extending portion downwardly concaved from the top surface of the fixed valve disc to connect to one side of the second cold water hole while a fourth extending portion is upwardly concaved from the bottom surface of the fixed valve disc to connect to one side of the hot water hole; the second cold water hole has a first cold water outlet on the outer side thereof to penetrate through the fixed valve disc while the second hot water hole comprises a first hot water outlet on the outer side thereof to penetrate through the fixed valve disc; a first temperature control hole is formed between one end of the first cold water outlet and one end of the first hot water outlet;
wherein the upper base of the valve base comprises a third cold water hole, a third hot water hole, a second cold water outlet, a second hot water outlet, and a second temperature control hole penetrating therethrough, and the lower base of the valve base has a cold water inlet hole, a hot water inlet hole, at least a cold water outlet hole, and a mixing water outlet hole penetrating therethrough; the cold water inlet hole and the hot water inlet hole are used to connect to the cold and hot water sources respectively, and the top surface of the lower base is downwardly concaved to form a lower slot, so that the cold water inlet hole and the hot water inlet hole are configured to downwardly penetrate the lower base through the lower slot; when the fixed valve disc, the driving valve disc, and sliding block are stacked in sequence inside the valve shell, the upper base of the valve base is utilized to support the fixed valve disc, the driving valve disc, the sliding block, and the control base, and the fixed valve disc is secured on the top surface of the upper base, and the third cold water hole, the third hot water hole, the second cold water outlet, the second hot water outlet, and the second temperature control hole of the upper base are respectively aligned with the second cold water hole, the fourth extending portion, the first cold water outlet, the first hot water outlet, and the first temperature control hole of the fixed valve disc; when the valve stem is not operated, the first cold water hole and the first extending portion of the driving valve disc are misaligned with the first cold water outlet and the first temperature control hole of the fixed valve disc, and the first hot water hole and the second extending portion of the driving valve disc are misaligned with the second hot water hole of the fixed valve disc, so that both cold and hot water are blocked by the driving valve disc and not flow out through the water outlet device;
wherein the water separator comprises an upper slot on the bottom surface thereof, and two first water inlets in the upper slot upwardly penetrate through the water separator; when the upper base, the water separator, and the lower base are stacked in sequence, and the balance valve is installed within the upper slot and the lower slot, the cold and hot water entering the lower base is configured to pass through the balance valve, the two first water inlets, the third cold water hole, and the third hot water hole into the inside of the valve shell; the water separator has a temperature control chamber and a third cold water outlet penetrating therethrough, and the water separator comprises a third temperature control hole downward concavely formed on the top surface thereof; the end of the third temperature control hole penetrates into the side of the temperature control chamber through at least a notch;
wherein the first cap is a closed cover with an open end facing downwards, and a plurality of hot water through holes respectively penetrating through the first cap; a plurality of protruding portions are separately formed on the inner edge of the support sleeve to form each of the outlet channels between two adjacent protruding portions; the support sleeve is connected in the mixing water outlet hole of the lower base, and the protruding portions are adapted to support the placement of the temperature sensor; a top rod is connected and inserted into one open end of the temperature sensor, and a chemical substance filled into the temperature sensor is adapted to undergo thermal expansion and contraction when the ambient temperature is changed, such that the top rod is pushed by the chemical substance when the chemical substance is heated and expanded to protrude out from the open end of the temperature sensor, and the chemical substance returns to its original volume after cooling; the water stop jacket comprises a tubular body and a housing which has an opening facing downwards, and the housing and the tubular body are sleeved together and are connected through one bottom edge, and the bottom edge has a plurality of first water through holes which are spaced, and the one end of the temperature sensor having the top rod is adapted to pass through the housing, so that the water stop jacket is configured to cover the temperature sensor; the spring is abutted between the first cap and the water stop jacket such that the spring is adapted to push the water stop jacket when the top rod is retracted in its normal state, and the tubular body of the water stop jacket is moved downwardly and misaligned with the hot water through holes of the first cap and not blocks the hot water through holes; the water stop jacket is supported and elevated by the temperature sensor, so as to prevent the notch of the water separator from being blocked by the tubular body of the water stop jacket, and the notch is adapted to keep communicating with the outlet channel of the support sleeve; the first cap is installed in the upper base, and the temperature sensor and the water stop jacket are configured to pass through the temperature control chamber of the water separator; and
wherein the balance valve comprises a fixed valve tube, a driving valve core, and an upper cap, and the driving valve core and the fixed valve tube respectively have a couple of second hollow holes and a couple of first hollow holes; the fixed valve tube is sleeved on the driving valve core, and the fixed valve tube and the driving valve core are positioned in the lower slot of the lower base, and the upper cap having a first water hole is capped on the lower base; two glued portions are respectively formed on the positions between the upper base and the water separator and between the upper cap and the lower base so as to achieve the anti-leakage effects therebetween.
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