Sonic life detectors look for life by recognizing the sound of trapped people. Humans have two ears. There are 3 to 6 ears in this instrument. Its ears are called "vibrators," also called vibration sensors.
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It can determine the specific location of survivors based on the small differences in the sounds heard by each ear. If the survivor can no longer speak, just tap with your finger and make a slight noise that can also be heard by it. Even if the people buried under pressure are trapped under a fairly solid large-area cement floor, as long as the heart still has a slight trembling, the detector can feel it, so the rescue team can determine if anyone is alive under the rubble.
Truck Crane and Aerial work truck
Truck Crane is a kind of lifting and handling machinery with truck which is widely used in ports, workshops, electric power, construction sites and other places. The name crane is a unified title for hoisting machinery. Cranes are usually called car cranes, crawler cranes and tire cranes. The purpose of the crane is to hoist equipment, rescue, lifting, machinery, and rescue.
(Crane) is a kind of hoisting machinery, it is a kind of machinery that makes cyclic and intermittent movement. A working cycle includes: the picking device lifts the item from the picking place, then moves horizontally to the designated place to lower the item, and then performs a reverse movement to return the picking device to the original position for the next cycle. Such as fixed slewing cranes, tower cranes, truck cranes, tires, crawler cranes, etc.
A multi-action hoisting machinery that vertically lifts and transports heavy objects within a certain range. Also called crane. Belongs to material handling machinery. The working feature of the crane is to do intermittent movements, that is, the corresponding mechanisms of the actions of retrieving, transporting and unloading in a working cycle are alternately working.
Truck Crane,Hydraulic Truck Crane,Small Truck Crane,Truck Mounted Crane
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