US 12,480,330 B2
Door lock of recreational vehicle with locking tongue and safety pin that move synchronously
Yuming Chen, Hongjiang (CN); and Shujiang Yang, Dongguan (CN)
Assigned to Dongguan Jufu Metal Manufactory Co., Ltd., Dongguan (CN)
Filed by Dongguan Jufu Metal Manufactory Co., Ltd., Dongguan (CN)
Filed on Jul. 6, 2025, as Appl. No. 19/260,541.
Claims priority of application No. 202520139270.4 (CN), filed on Jan. 21, 2025.
Prior Publication US 2025/0333976 A1, Oct. 30, 2025
Int. Cl. E05B 13/10 (2006.01); E05B 81/06 (2014.01); E05B 81/14 (2014.01)
CPC E05B 13/10 (2013.01) [E05B 81/06 (2013.01); E05B 81/14 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A door lock of recreational vehicle with a locking tongue and a safety pin that move synchronously, comprising a lock body and an outer handle fixedly mounted on an outer end surface of the lock body, wherein
a first sliding chamber, a second sliding chamber and a mounting chamber are formed in the lock body;
both the first sliding chamber and the second sliding chamber are in communication with the mounting chamber;
the locking tongue and a spring are arranged in the first sliding chamber;
the spring abuts against the locking tongue, and under an action of the spring, a top end of the locking tongue is capable of remaining in a state of popping out outward;
the safety pin is arranged in the second sliding chamber;
inner ends of the locking tongue and the safety pin are arranged in the mounting chamber and each is provided with an elongated slot;
the lock body comprises a lock core arranged on the outer handle, and the lock core sequentially extends through the outer handle and an outer shell of the lock body and is located in the mounting chamber;
a first rotary disk is connected to an output shaft of the lock core, and the first rotary disk is sleeved with a second rotary disk driven by the first rotary disk;
a first eccentric rod is disposed on the first rotary disk, and the first eccentric rod is arranged in the elongated slot of the locking tongue, and is configured to push the locking tongue outwardly or pull the locking tongue inwardly through a rotation of the first rotary disk;
a side edge of the second rotary disk is provided with a gear face and a limiting protrusion;
a limiting block is arranged in the mounting chamber in a movement track of the limiting protrusion;
a toggle gear is mounted in the mounting chamber, the toggle gear meshes with the gear face of the second rotary disk, and a second eccentric rod is disposed on the toggle gear; and
the second eccentric rod is arranged in the elongated slot of the safety pin.