Patents by Inventor Daihua Zhou

Daihua Zhou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11873663
    Abstract: A door lock device and a door lock having the same, wherein the door lock device includes: a switch mechanism capable of being operatively switched from a first position to a second position or a third position; an oblique tongue mechanism, including an oblique tongue body and an oblique tongue drive assembly, the oblique tongue drive assembly being connected to the switch mechanism, wherein, when the switch mechanism is in the first position, the oblique tongue body is in an extended state, and when the switch mechanism is switched from the first position to the second position or the third position, the switch mechanism drives the oblique tongue drive assembly, to drive the oblique tongue body to be in a retracted state; a deadbolt mechanism, including a deadbolt body and a deadbolt drive assembly; and a linkage mechanism connecting the switch mechanism and the deadbolt drive assembly.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: January 16, 2024
    Inventors: Li Zheng, Daihua Zhou
  • Publication number: 20220178171
    Abstract: A door lock device and a door lock having the same, wherein the door lock device includes: a switch mechanism capable of being operatively switched from a first position to a second position or a third position; an oblique tongue mechanism, including an oblique tongue body and an oblique tongue drive assembly, the oblique tongue drive assembly being connected to the switch mechanism, wherein, when the switch mechanism is in the first position, the oblique tongue body is in an extended state, and when the switch mechanism is switched from the first position to the second position or the third position, the switch mechanism drives the oblique tongue drive assembly, to drive the oblique tongue body to be in a retracted state; a deadbolt mechanism, including a deadbolt body and a deadbolt drive assembly; and a linkage mechanism connecting the switch mechanism and the tongue drive assembly.
    Type: Application
    Filed: October 19, 2021
    Publication date: June 9, 2022
    Applicant: Smart Electronic Industrial (Dong Guan) Co., Ltd.
    Inventors: Li Zheng, Daihua Zhou