US 12,473,985 B2
Valve core and a pull-out faucet thereof
Yonghua Ma, Zhejiang (CN)
Assigned to Ningbo Wanhai Cartridge Technology Co., Ltd., Ningbo (CN)
Filed by Ningbo Wanhai Cartridge Technology Co., Ltd., Zhejiang (CN)
Filed on Aug. 21, 2023, as Appl. No. 18/452,694.
Claims priority of application No. 202222569325.4 (CN), filed on Sep. 27, 2022; and application No. 202321067255.0 (CN), filed on Apr. 28, 2023.
Prior Publication US 2024/0102562 A1, Mar. 28, 2024
Int. Cl. F16K 11/074 (2006.01); E03C 1/04 (2006.01)
CPC F16K 11/0743 (2013.01) [E03C 1/04 (2013.01); Y10T 137/9464 (2015.04)] 14 Claims
OG exemplary drawing
 
1. A valve core, comprising:
a valve housing having a chamber, an inner top surface, a bottom and two water inlet channels and two water outlet channels;
a rotor disposed inside the valve housing;
a driving plate disposed inside the valve housing and below the rotor;
a valve handle disposed inside the valve housing and being capable of rotating and swinging;
a movable valve sheet disposed inside the valve housing and below the driving plate;
a fixed valve sheet disposed inside the valve housing and located at the bottom of the valve housing;
wherein,
the driving plate is rotatable together with the rotor under the rotation of the valve handle and is slidable relative to the rotor under the swinging of the valve handle, the driving plate has a limiting portion protruding at a periphery of the driving plate;
the movable valve sheet is connected to the driving plate and is rotatable and slidable together with the driving plate, the rotation of the movable valve sheet is used for adjusting a mixing ratio of cold water to hot water, the sliding of the movable valve sheet is used for switching the two water outlet channels and closing the two water inlet channels;
the valve housing has two inner blocks protruding from the inner top surface of the valve housing and being spaced to form a limiting recess between the two inner blocks for receiving and limiting the limiting portion of the driving plate;
only when the limiting portion is aligned with the limiting recess, the movable valve sheet is capable of sliding with the driving plate in a direction of closing inlet water, when the limiting portion is exposed to a periphery of the rotor, the limiting portion inserts into the limiting recess;
and when the driving plate rotates in a state where the limiting portion and the limiting recess are misaligned, the limiting portion is blocked by the inner blocks, so as to stop the movable valve sheet from sliding with the driving plate in a direction of closing inlet water.