[ Huaqiang Security Network News ] 
The telescopic staircase can be stretched and shortened like a fishing rod. The shortened length is about 0.7 meters, the height after stretching is about 4 meters, and the weight of the extension ladder is only about 6-10 kilograms. The load is about 150 kg. The product is easy to carry and store and can be placed in the closet of the home, in the study, under the bed or in the trunk of the car.
Ultra-light weight, ultra-short height, superior safety, user-friendly design, beautiful appearance, make this product sell well all over the world, is home, hotel, shopping mall, enterprise, power telecommunications, urban construction, public security fire The ideal ladder for high-level operation of heating and gas supply, gardening, etc., is also an essential ascending ladder for all kinds of vehicles in the field of emergency repair vehicles, line inspection vehicles, command vehicles, etc.
Specification and installation of telescopic stairs
Because its structural principle is relatively simple, unlike other custom-made stairs, usually this kind of ladder does not need to be measured by the door. What you need to do is to open the stair hole. Before deciding to make this staircase, be sure to communicate with the manufacturer in advance, and open the stairway in strict accordance with the requirements, otherwise the stairs will not be installed.
Regarding the hole, pay attention to two points: The first thing to note is that the space on the side of the hole should be 8 cm away, because the upper four corners are mounted by a long screw and hung upside down on the floor. If there is no space left by the position of the wall, it is impossible to install it obliquely; the second thing to note is that a 40 cm platform should be reserved for the upper port to facilitate the upper and lower.
At present, the specifications of the common telescopic stair openings are available in two sizes, 70CM*90CM and 70CM*120CM. Let's take a 70*120 cm hole as an example to make a hole size chart for reference:
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