Audible and visual alarm device for elevator

Abstract

The invention discloses an audible and visual alarm device for an elevator. The device comprises a fireproof cover of a transparent structure, a mounting opening is formed in the outer wall of the topof the fireproof cover, a heat preservation pipe of a transparent structure is sleeved with the inner wall of the mounting opening, the bottom end of the heat preservation pipe is welded to the innerwall of the bottom of the fireproof cover, the outer wall of the top end of the heat preservation pipe is sleeved with a mounting ring, a smoke sensor and an audible and visual alarm are sequentiallyand fixedly connected to the inner walls, located on the two sides of the heat preservation pipe, of the top of the fireproof cover, the inner wall of the lower portion of the heat preservation pipeis sleeved with a mounting plate, a camera is connected to the outer wall of the bottom of the mounting plate through bolts, and a controller, an execution element and a circuit breaker are sequentially connected to the outer wall of the top of the mounting plate. According to the audible and visual alarm device, the smoke sensor and the audible and visual alarm can be prevented from being burnt out by fire, meanwhile, the work of the smoke sensor is not hindered, and heat generated during the operation of the camera can be dissipated, so that the service life of the camera is prolonged, powerfailure can be timely achieved, the safety is improved, and meanwhile, the loss can be reduced.

Description

technical field [0001] The invention relates to the technical field of acousto-optic alarms, in particular to an acousto-optic alarm device for elevators. Background technique [0002] Elevator refers to the permanent transportation equipment that serves several specific floors in the building, and its car runs on at least two rigid rails perpendicular to the horizontal plane or with an inclination angle of less than 15° from the plumb line. Running continuously on the crawler belt, commonly known as escalators or moving walks, serving fixed lifting equipment for specified floors, vertical lifts have a car that runs between at least two vertical or rigid guide rails with an inclination angle of less than 15°, The size and structure of the car are convenient for passengers to enter and exit or to load and unload goods. It is customary to use elevators as a general term for vertical transportation in buildings regardless of their driving mode. 4 to 12 m / s) and high-speed elev...

AI Technical Summary

Problems solved by technology

[0003] Elevators are generally equipped with alarm devices to remind people in the elevator or staff outside the elevator when a dangerous situation occurs, so as to effectively reduce damage in the event of an elevator disaster. However, the existing sound and light alarms cannot be used in conjunction with cameras. , at the same time, the existing camera cannot dissipate heat, which can easily cause damage to the camera. In addition, the existing smoke sensor is not provided with a protective device. Once a disaster occurs, the smoke sensor will be burned and the cost will be increased.

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