US 12,258,233 B2
Adjustable paper blocking structure of thermal printers
Xiong Liu, Hanchuan (CN); and MingMeng Li, Wuhan (CN)
Assigned to Wuhan Jingchen Intelligent Identification Technology Co, Ltd., Wuhan (CN)
Filed by Wuhan Jingchen Intelligent Identification Technology Co., Ltd., Wuhan (CN)
Filed on May 15, 2023, as Appl. No. 18/317,375.
Claims priority of application No. 202310250754.1 (CN), filed on Mar. 15, 2023.
Prior Publication US 2024/0308802 A1, Sep. 19, 2024
Int. Cl. B65H 16/06 (2006.01); B41J 11/00 (2006.01)
CPC B65H 16/06 (2013.01) [B41J 11/0045 (2013.01); B65H 2403/411 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An adjustable paper blocking structure of a thermal printer, comprising:
a base evenly provided with a plurality of tooth grooves;
a paper blocking component comprising a first paper blocking plate and a second paper blocking plate, wherein the first paper blocking plate and the second paper blocking plate are mirror-symmetrically arranged on the base and slidably connected to the base;
a locking component having one end rotatably connected to the first paper blocking plate and the other end engaged in the corresponding tooth groove;
wherein the base is provided with a first slot and a second slot, and a bottom end of the first paper blocking plate and a bottom end of the second paper blocking plate are respectively provided with a first rack and a second rack, the first rack and the second rack pass through the first slot and the second slot respectively and are engaged by a ratchet, the ratchet is rotatably attached to the base;
wherein the locking component comprises a rotating handle, a pin, and a reset spring, a bottom end of the pin passes through the bottom end of the first paper blocking plate and is slidably connected to the tooth groove, a top end of the pin passes through a top end of the first paper blocking plate and is rotatably connected to the rotating handle, a middle of the pin is fitted with the reset spring, and a top end of the reset spring is connected to a bottom surface of the first paper blocking plate and a bottom end of the reset spring is connected to a side wall of the pin.