Separate trailer alarm device

By separating the audible and visual warning device from the control box, the trailer alarm device is designed to ensure circuit stability and alarm effectiveness. This solves the problem that alarm states are not easily detected in traditional devices, improves the alerting effect of abnormal trailer conditions, and avoids safety hazards.

CN224476791UActive Publication Date: 2026-07-10DONGGUAN WELL SHIN ELECTRONICS PRODS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN WELL SHIN ELECTRONICS PRODS
Filing Date
2025-06-23
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Traditional trailer alarm devices, due to their integrated structure, are not easily detected when alarms are triggered. Their installation location is also limited, making it difficult to promptly alert the driver and surrounding personnel to any abnormal trailer conditions, thus posing a safety hazard.

Method used

The device features a separate design, separating the audible and visual warning device from the control box. The audible and visual warning device can be installed in an easily visible location. It uses anti-detachment ropes and insulating pins to trigger an alarm when the trailer hitch is separated from the trailer frame. Metal springs and elastic components ensure circuit stability, and the combination of the audible and visual circuit board and horn provides a strong alarm.

Benefits of technology

It effectively solves the problem that alarm states are not easily detected due to installation location limitations of traditional devices, improves the alerting effect of abnormal trailer status, and avoids unnecessary trouble and safety accidents.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224476791U_ABST
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Abstract

The utility model discloses a detachable trailer alarm device, it includes anti -drop rope, insulating pin, control box, metal spring piece, audible -visual warning device and extension electric wire, be equipped with the insertion cavity that the insulating pin inserts on the control box, two metal spring pieces symmetry both sides position of insertion cavity set in the control box, and can be together and fold and resist the contact connection and form the loop, the anti -drop rope is connected with one end of the insulating pin, the other end of the insulating pin inserts in the insertion cavity, and can push away two metal spring pieces and form open circuit. The utility model structure adopts the split type, separates audible -visual warning device and control box, and audible -visual warning device can be installed in the position of easy discovery or conspicuousness, effectively solve the problem that the alarm state is not easy to be discovered because of the installation position limitation of traditional integral type structure, can effectively remind the abnormal state of trailer driver and surrounding personnel, avoid the emergence of unpredictable risk.
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