A guiding device for an elevator car , comprising: a roller guide frame ; and at least one roller rotatably mounted to the roller guide frame , the roller being configured to roll on an elevator guide rail when the elevator car is moving; wherein the guiding device further comprises a braking device which inhibits the rotation of the roller when activated; wherein the braking device comprises: a braking module comprising a friction member capable of switching between a braking position and an idle position, wherein when the friction member is in the braking position, the friction member acts on the at least one roller by friction to inhibit the rotation of the at least one roller , and when the friction member is in the idle position, it is separated from the at least one roller ; a pull wire connected to the friction member ; and a brake which is connected to the pull wire and which is capable of pulling the pull wire so as to cause the friction member of the braking module to move from the idle position to the braking position; characterized in that : the at least one roller comprises a first roller and a second roller arranged side by side, the first roller and the second roller have a gap therebetween to accommodate the guide rail , and when the braking device is activated, it acts on both the first roller and the second roller . a roller guide frame ; and at least one roller rotatably mounted to the roller guide frame , the roller being configured to roll on an elevator guide rail when the elevator car is moving; wherein the guiding device further comprises a braking device which inhibits the rotation of the roller when activated; wherein the braking device comprises: a braking module comprising a friction member capable of switching between a braking position and an idle position, wherein when the friction member is in the braking position, the friction member acts on the at least one roller by friction to inhibit the rotation of the at least one roller , and when the friction member is in the idle position, it is separated from the at least one roller ; a pull wire connected to the friction member ; and a brake which is connected to the pull wire and which is capable of pulling the pull wire so as to cause the friction member of the braking module to move from the idle position to the braking position; characterized in that : the at least one roller comprises a first roller and a second roller arranged side by side, the first roller and the second roller have a gap therebetween to accommodate the guide rail , and when the braking device is activated, it acts on both the first roller and the second roller . a braking module comprising a friction member capable of switching between a braking position and an idle position, wherein when the friction member is in the braking position, the friction member acts on the at least one roller by friction to inhibit the rotation of the at least one roller , and when the friction member is in the idle position, it is separated from the at least one roller ; a pull wire connected to the friction member ; and a brake which is connected to the pull wire and which is capable of pulling the pull wire so as to cause the friction member of the braking module to move from the idle position to the braking position; characterized in that : the at least one roller comprises a first roller and a second roller arranged side by side, the first roller and the second roller have a gap therebetween to accommodate the guide rail , and when the braking device is activated, it acts on both the first roller and the second roller . <EOS>