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Disclosed is an apparatus for opening and shutting a drain valve in a washstand, particularly, an apparatus for automatically opening and shutting a drain valve in a washstand, wherein an automatic opening and shutting means for automatically opening and shutting the drain valve is mounted. The appa

Disclosed is an apparatus for opening and shutting a drain valve in a washstand, particularly, an apparatus for automatically opening and shutting a drain valve in a washstand, wherein an automatic opening and shutting means for automatically opening and shutting the drain valve is mounted. The apparatus for automatically opening and shutting the drain valve in the washstand, wherein a drain-pipe is connected to the bottom of a washstand, and the top of the drain-pipe, i.e., a drain-outlet is opened and shut by a drain valve built in the drain-pipe, including a deceleration motor formed at one side of the drain-pipe, a working cam closely contacting the bottom of the drain valve, wherein the working cam is disposed on the axis of the deceleration motor, and a touch button for turning on/off the deceleration motor, wherein the touch button is disposed at a predetermined portion of the washstand.

대표청구항 ▼

1. An apparatus for opening, and closing a drain valve in a washstand having a hole to which a drain-pipe is connected, the apparatus comprising:the drain valve having a cap for preventing liquid flow through the hole into the drainpipe and an elongated rod having a first end connected to the cap an

1. An apparatus for opening, and closing a drain valve in a washstand having a hole to which a drain-pipe is connected, the apparatus comprising:the drain valve having a cap for preventing liquid flow through the hole into the drainpipe and an elongated rod having a first end connected to the cap and a second end disposed inside the drainpipe,a motor having a motor shaft formed outside the drainpipe;a circular cam contacting the second end of the elongated rod of the drain valve inside the drain pipe and being connected to the motor shaft through the drainpipe,wherein the cam is mounted inside the drainpipe to come in contact with the liquid flowing through the drainpipe, andwherein the cam is driven by the motor to rotate to exert axial force on the second end of the elongated rod by which the elongated rod is actuated opposite the bias force to move the cap to a plurality of predetermined positions with respect to the hole of the washstanda switch for initiating the movement of the cap to a plurality of predetermined positions with respect to the hole of the washstand;a spring for providing a bias force on the elongated rod so that the cap is actuated to fit into the hole to close the drain valve when the switch is in the off state;a upper spring housing; anda lower spring housing,wherein the upper spring housing and the lower spring housing are fitted together to form an inner cylindrical opening and an outer cylindrical opening,wherein the fitted inner and lower spring housing are mounted inside the drainpipe such that the outer cylindrical opening allows liquid flow therethrough,wherein the inner cylindrical opening receives a portion of the elongated rod and the spring wrapping around the portion of the elongated rod inside the inner cylindrical opening, andwherein the spring is housed inside the inner cylindrical opening to exert force on the elongated rod by which the cap of the drain valve is closed during the off state.2. The apparatus for opening and closing a drain vale in a washstand as claimed in claim 1, wherein the switch has a on or off state.3. The apparatus for opening and closing a drain valve in a washstand as claimed in claim 2, such that, when the switch is set to the on state, the cam is actuated by the motor such that the cap is moved away from the hole to open the drain valve.4. The apparatus for opening and closing a drain valve in a washstand as claimed in claim 3, further comprising a cam support plate connected to the second end of the elongate rod and in contact with the cam.