Device and method for installing and adjusting pressure of roller guide, and elevator system

A device for installing and adjusting pressure of a roller guide shoe, comprising:

• a bracket, installed on a car frame upright of an elevator car;
• a positioning portion, installed on the bracket and operatively having a first state in which the positioning portion fixes a positioning of the car frame upright relative to an elevator guide rail to define a reference for installing the roller guide shoe to the car frame upright, and a second state in which the positioning portion releases the positioning;
• and
• a pressure adjusting portion, comprising a contact member installed on the bracket, and a mating member installed at a preset position on the elevator guide rail and located outside a running trajectory of the roller guide shoe on the elevator guide rail, wherein when the elevator car is driven to run close to the preset position and stops, the contact member comes into pressure contact with the mating member to at least reduce a contact pressure between the roller guide shoe and the elevator guide rail.