电梯Shaft is the foundation of the elevator, the operation of the elevator is all in the shaft, the quality of the foundation will directly affect the installation and operation of the elevator, that is, the quality of the elevator。Several issues that should be noted about the size of elevator shaft are put forward:
      1. Top height
      Changes in the height of the top floor are a frequent problem，In the elevator design is according to the standard requirements according to the size of the elevator car proposed a standard top height size，This dimension takes into account some uncertainties in civil construction，For example, the thickness of the top floor decoration layer (although it is indicated in the civil drawing is the size after decoration)，But the actual operation is not much attention，So there is not much room for adjustment，In particular, some of the buildings that have been built will be ignored in the actual measurement，This will cause insufficient height of the top floor when determining the top floor line during installation。In addition to the speed requirements of the elevator, users sometimes propose that the speed of the original elevator needs to increase the speed of the elevator, then the problem of the top height is particularly important, especially for the transformation of the old ladder。Attention should be paid to it in sales。
      2. Pit depth
      The depth of the pit is the same problem as the height of the top floor. When solving the pit, the height of the top floor will be increased, such as adding a step, which can solve the problem but will bring inconvenience to users。This needs to be coordinated with the user。However, it is also necessary to pay attention to the speed of the elevator。
      3. Open the door
      The side door has the problem of opening the door direction, and the current principle is mostly determined by the direction of people standing in the elevator outside the car。Because the direction of the door determines the elevator shaft layout, the direction is wrong。Therefore, the elevator with the side door should pay attention to the direction of the door, especially the principle of determining the direction of the door。
      4、开门
      The width of the elevator shaft is not only determined by the size of the car and guide rail, the width of the door has a greater impact on the width of the shaft, and the width of the floor sill of the car door affects the width of the shaft。In the well chart, there is a deviation of 30-50 mm to the vertical of the civil well, so the well deviation problem should be considered when determining the width of the well。According to the theoretical size of the installation site, if the well deviation is large, there will be a situation of car floor sill touching the well wall, which is difficult to deal with。Therefore, in the case of some tight well size, it is necessary to pay attention to whether the car door sash interferes with the well。In particular, it is necessary to judge the deviation of the whole shaft when upgrading the elevator。
      5. Well size
      The width of the well makes some requirements on the width of the opening door above，But well size is more than just door width，On the outside of the car, there are four positions bounded by the main rail to place the cable, the governor to lift the wire rope, the leveling device, and the terminal limit switch，These electrical devices must occupy a certain space，There is no way to control the elevator without installing the space for these devices。

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