A smoke alarm with a battery leak prevention structure
By setting a matching structure of limiting protrusions and stops between the alarm body and the base plate, the problem of missing batteries is solved, and the battery installation status is clearly indicated and normal use is achieved.
CN224501350UActive Publication Date: 2026-07-14HANGZHOU DEHENG INTELLIGENT ELECTRICAL APPLIANCES CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU DEHENG INTELLIGENT ELECTRICAL APPLIANCES CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-14
AI Technical Summary
Technical Problem
Existing alarm systems are prone to battery leakage during installation, which affects normal operation and increases the workload of staff.
Method used
A matching structure of limiting protrusions and stops is set between the alarm body and the base plate. Through the interaction between the stops and the limiting protrusions, the base plate is prevented from rotating when the battery is not installed, ensuring that the card cannot be inserted into the card slot, and visually indicating that the battery is not installed.
Benefits of technology
It automatically alerts when the battery is not installed, reducing the number of times the device needs to be disassembled and installed, lowering the workload for staff, and ensuring the alarm functions properly.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224501350U_ABST
Abstract
This utility model discloses a smoke alarm with a battery leak-proof structure, including an alarm body and a base plate. The alarm body has a battery slot, and the outer ring of the base plate has multiple locking blocks. The alarm body has slots that cooperate with the locking blocks. The locking blocks on the base plate can engage with the slots during base plate rotation. This utility model provides a limiting protrusion on the base plate for sealing the battery slot and a corresponding stop on the alarm body. When installing the alarm without batteries, the stop abuts against the limiting protrusion, thus limiting the rotation of the base plate when the alarm body is without batteries, preventing the locking blocks from engaging with the corresponding slots. The base plate automatically detaches under gravity, allowing the operator to visually determine the battery installation status.
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