US 12,473,755 B2
Interlink lock mechanism for multi-layered drawer furniture
Shu Hua Lin, Suzhou (CN); Shu Jiuan Lin, Suzhou (CN); and Ping Shun Kao, Suzhou (CN)
Assigned to HU HUA METAL PRODUCTS CO., LTD, Suzhou (CN)
Filed by HU HUA METAL PRODUCTS CO., LTD, Suzhou (CN)
Filed on Oct. 13, 2023, as Appl. No. 18/486,544.
Claims priority of application No. 202322304579.8 (CN), filed on Aug. 28, 2023.
Prior Publication US 2025/0072604 A1, Mar. 6, 2025
Int. Cl. E05B 65/464 (2017.01)
CPC E05B 65/464 (2013.01) 12 Claims
OG exemplary drawing
 
1. A multi-layered drawer furniture with an interlink lock mechanism, the drawer furniture comprising a cabinet and at least two drawers distributed up and down in the cabinet, a guide rail assembly configured to be arranged between each said drawer and the cabinet, and the guide rail assembly comprising a drawer slide rail configured to be mounted on a side surface of the drawer, a cabinet slide rail configured to be mounted on the cabinet, and a drive member arranged at an end of the drawer slide rail, and the drawer slide rail being matched with the cabinet slide rail and the drive member being capable of sliding along the cabinet slide rail,
wherein the interlink lock mechanism is mountable to a side wall of the cabinet, and the interlink lock mechanism includes a track seat, fixing assemblies located at both ends of the track seat, and a plurality of self-locking adjustment assemblies located on the track seat, the track seat is mountable in a height direction of the cabinet, and the plurality of self-locking adjustment assemblies being arranged at an interval in a height direction of the track seat,
wherein the drive member is a roller, and a center shaft of the roller is rotatably connected to the end of the drawer slide rail; the end of the cabinet slide rail is provided with an arc-shaped groove matched with the roller; and in a closed state of the drawer, the roller is located in the arc-shaped groove;
each of the self-locking adjustment assemblies comprises a connecting rod, an opening block, and two functional blocks, wherein the functional blocks are slidably connected to the track seat, two adjacent said self-locking adjustment assemblies are defined as an upper self-locking adjustment assembly and a lower self-locking adjustment assembly, the two functional blocks of one said self-locking adjustment assembly are defined as a functional block A and a functional block B, an upper end of the connecting rod is connected to the functional block A, and a lower end of the connecting rod is connected to the functional block B;
the fixing assemblies located at both ends of the track seat are respectively defined as an upper fixing assembly and a lower fixing assembly, and the upper fixing assembly is located above the self-locking adjustment assembly adjacent thereto; and the lower fixing assembly is located below the self-locking adjustment assembly adjacent thereto, and one said opening block is further arranged between the upper fixing assembly and the lower fixing assembly;
a gap between a lower end of the upper fixing assembly and an upper end of the lower fixing assembly can allow only one said opening block to rotatably enter between the two functional blocks or between one said functional block and one said fixing block; and the opening block is located between the two functional blocks of the two adjacent said self-locking adjustment assemblies, the opening block is rotatably connected to the functional blocks, to adjust a distance between the two functional blocks depending on whether the opening block is rotated;
and when the opening block is located between one said fixing assembly and the functional block of one self-locking adjustment assembly, the opening block is rotatably connected to the fixing assembly and the functional block, to adjust a distance between the fixing assembly and the functional block depending on whether the opening block is rotated.