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Dumbwaiter Elevator Design Points
- Jul 23, 2018 -

Dumbwaiter Elevator Design Selection Points introduction:

It is used for the delivery of small goods such as books and foods for canteens, restaurants, nurseries, and libraries.

 1) The weight of the elevator should be installed in the same hoistway as the car.

 2) Elevator shafts are normally completely enclosed by non-porous walls, floors, and roofs. Only the following openings are allowed:

 (1) landing doors;

 (2) Access doors, trap doors, clean doors;

 (3) Exhaust vents for exhaust gases and fumes in the event of a fire;

 (4) Permanent openings between the hoistway and the engine room (hood) or between the pulleys.

 3) When the hoistway is not required to prevent the spread of fire to protect the building and the hoistway is not required to be completely closed, the height of all other walls except the entrance face shall not be less than 2.5m. At the entrance face of the hoistway, grids or perforated plates can be used above the landing floor at a height of 2.5 m. The dimensions of the grid or perforated plate holes are no greater than 75 mm, whether measured in the horizontal or vertical direction.

 4) The room door must not be less than 0.6m×0.6m at any time, and the door should be able to lock.

 5) Non-porous landing doors should be installed at the opening of the shaft facing the car entrance. When the door is closed, the gap between the leaves or between the leaf and the column, the lintel or the sill should be as small as possible and should not exceed 6mm.

 6) If the rated load of the car is greater than 250kg, a safety gear device shall be provided on the car.

 7) The elevator drive unit and its ancillary equipment should be placed in a separate machine room or in a hood in the elevator hoistway. This room or hood should only allow (or approach) access by authorized personnel.

 8) The machine room or hood should have a sturdy structure that can adapt to various weather conditions and should be dry and at the same time, have good ventilation conditions. Personnel should be safe when approaching all equipment.


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