Box panel assembly and trolley
CN224427450UActive Publication Date: 2026-06-30TAIZHOU DEYI PLASTICS CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU DEYI PLASTICS CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
The existing door locks of folding shopping carts are inconvenient to operate, requiring both hands to operate the latches which are far apart, making the unlocking or locking process inconvenient.
Method used
A box plate assembly was designed, which adopts a combination structure of unlocking plate, compression spring, lock body and transmission rod. By pressing the unlocking plate, multiple locking positions of the lock can be unlocked or locked simultaneously, simplifying the operation process.
Benefits of technology
It enables door panels to be unlocked or locked with one hand, improving the ease of operation and reliability of the lock.
✦ Generated by Eureka AI based on patent content.
Smart Images

Figure CN224427450U_ABST
Abstract
This utility model discloses a box panel assembly and a trolley. The box panel assembly includes a frame, a square door panel, and a lock. The pivot side of the door panel is rotatably mounted to the frame. The locking side of the door panel has a hook groove on each of its opposite sides. The lock includes an unlocking plate, at least one compression spring, two lock bodies, and two transmission rods. The unlocking plate is slidably mounted to the frame. The opposite ends of the compression spring abut against the unlocking plate and the frame, respectively. The lock body includes an integral, L-shaped driven arm and a locking arm. The end of the locking arm has a locking hook. The connection between the driven arm and the locking arm is rotatably mounted to the frame. The locking hook can engage or disengage from the hook groove of the door panel. The middle part of the transmission rod is rotatably mounted to the frame. One end of the transmission rod is drivably connected to the unlocking plate, and the end of the driven arm is drivably connected to the other end of the transmission rod.
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Citation Information
Patent Citations
Foldable storage device and cart
CN119796299A
Folding shopping cart
CN220410593U