Trolley-transformer - increase the capacity of the platform
Have you ever come across a universal dolly? It looks normal, two-wheeled, positioned vertically, with a small platform, on which you can put only a bag of cement, and with an additional hinged, increasing the capacity of the cargo area. But there is such a construction equipment one remarkable feature - an additional pair of wheels in the area of the handles, with which the given truck-transformer is transformed into a conventional platform four-wheel.
On the one hand, the wheels in the immediate vicinity of your hands can be a bit annoying, but the advantage is undeniable. Where you need maneuverability, and you can forgo the payload, we use a trolley in the two-wheel version of the .When there is an open space in front of us and there is no need to maneuver between piles of bricks and stacks of logs, but we urgently need to load more cargo on the platform, set the cart horizontally, and complete the order.
When a ladder cart is needed as air
Imagine that you are carrying a large paint container on the cart, it is already open, and although the cover is again in place, the integrity is broken, and when the container falls, the contents may spill. There is a ladder in front, and any awkward movement will end exactly what you are afraid of. Just in this case, you will very much help the ladder cart. On each side, three wheels, fixed in the same plane by an equilateral triangle, provide an excellent mobile platform excellent maneuverability and stability( at the bottom there are always 2 wheels, which gives support for 4 points).And most importantly, how well this trolley is adapted to climb the stairs.
By pushing the platform to the steps, you do not have to stop or even slow down the traffic. Simply continue pushing the cart forward, and here the front wheels of the four rolling on the ground abut the front of the stage, the upper ones begin to shift forward, hang over the tear and now they are the supporting ones, and the first step is made. Both three-wheeled triangles rotate evenly with each next step, and now the ladder is behind, and the paint in the tank has never been so dangerous that it spills over the edge.
Rigging trolleys and other specialized devices
It is not always necessary to transport large or bulk materials on the construction site, sometimes you need to spray the anti-ice solution on the site for free passage of heavy equipment. After all, it's not a matter, if a crane on the platform of a lorry takes a turn at the turn, and it collapses with all its weight onto the house under construction. A special trolley dispenser for reagents will provide fan spraying of the contents, covering immediately a sufficiently wide band.
If gravel is to be spread evenly on the construction site, for this purpose there are special trolleys with batching hoppers for solid bulk materials.
Another situation may arise when on large-scale construction it is necessary to quickly empty the car from bulk material, the same gravel, for example. For these purposes, an unloading trolley can be used, which is a belt conveyor, ending with a receiver funnel with guide sleeves. Shovels manually or through a special dump onto the conveyor are fed material that is further poured either onto the wheelbarrows fed to the hoses, or directly into the pit to fill the foundation.
And finally, rigging trolleys, which are nothing more than highly specialized two-wheeled platforms for vertical positioning. In fact, almost the same transformer, but a certain direction, for example, to transport cylinders with gas or barrels. Almost all two-wheel rigging models are equipped with an additional tilting platform to increase the area of the platform for loading .
Another option - a lifting truck, which can have a scissor or telescopic mechanism with a hydraulic drive. In the first case, these are conventional forklift carts, in the second, as a rule, stackers with masted guides.
