Installation bracket for mounting a telecom equipment, comprising: a top plate unit configured to be positioned at the top end of a tubular element, and a clamping device coupled to the top plate unit; wherein the clamping device is configured to be clamped against the inner wall of the tubular element thereby fixing the installation bracket to the tubular element in its clamping state; wherein the clamping device comprises at least three clamping units (124, 126, 128) configured to abut against the inner wall of the tubular element in the clamping state of the clamping device; wherein the installation bracket further comprises a clamping actuator mechanism, wherein the clamping units (124, 126, 128) are configured to be displaceable towards and away from the inner wall of the tubular element by operation of the clamping actuator mechanism; wherein the clamping actuator mechanism comprises a clamping actuator screw configured to control the movement of the clamping units (124, 126, 128) towards and away from the inner wall of the tubular element; wherein the clamping actuator mechanism further comprises a clamping unit retainer device and a clamping unit guide device, where the respective clamping unit (124, 126, 128) is pivotally mounted on the clamping unit retainer device, where the clamping unit retainer device is configured to move axially together with the clamping actuator screw when the clamping actuator screw is turned around its axis, and where the clamping unit guide device is immovably fixed to the top plate unit; characterized in that the clamping unit guide device has a corresponding slot (144, 146, 148) for each clamping unit (124, 126, 128), where each slot (144, 146, 148) is closed at the end (150, 152, 154) opposite to the position of the top plate unit, where each clamping unit (124, 126, 128) is configured to abut against the clamping unit guide device at the respective closed end (150, 152, 154) of the respective corresponding slot (144, 146, 148) during operation of the clamping actuator screw, where each slot (144, 146, 148) is configured to run in parallel with the axis of the clamping actuator screw, and where the walls of each slot (144, 146, 148) are configured to control the movement of the respective clamping unit (124, 126, 128) along the axis of the clamping actuator screw when the clamping actuator screw is turned around its axis. a top plate unit configured to be positioned at the top end of a tubular element, and a clamping device coupled to the top plate unit; wherein the clamping device is configured to be clamped against the inner wall of the tubular element thereby fixing the installation bracket to the tubular element in its clamping state; wherein the clamping device comprises at least three clamping units (124, 126, 128) configured to abut against the inner wall of the tubular element in the clamping state of the clamping device; wherein the installation bracket further comprises a clamping actuator mechanism, wherein the clamping units (124, 126, 128) are configured to be displaceable towards and away from the inner wall of the tubular element by operation of the clamping actuator mechanism; wherein the clamping actuator mechanism comprises a clamping actuator screw configured to control the movement of the clamping units (124, 126, 128) towards and away from the inner wall of the tubular element; wherein the clamping actuator mechanism further comprises a clamping unit retainer device and a clamping unit guide device, where the respective clamping unit (124, 126, 128) is pivotally mounted on the clamping unit retainer device, where the clamping unit retainer device is configured to move axially together with the clamping actuator screw when the clamping actuator screw is turned around its axis, and where the clamping unit guide device is immovably fixed to the top plate unit; characterized in that the clamping unit guide device has a corresponding slot (144, 146, 148) for each clamping unit (124, 126, 128), where each slot (144, 146, 148) is closed at the end (150, 152, 154) opposite to the position of the top plate unit, where each clamping unit (124, 126, 128) is configured to abut against the clamping unit guide device at the respective closed end (150, 152, 154) of the respective corresponding slot (144, 146, 148) during operation of the clamping actuator screw, where each slot (144, 146, 148) is configured to run in parallel with the axis of the clamping actuator screw, and where the walls of each slot (144, 146, 148) are configured to control the movement of the respective clamping unit (124, 126, 128) along the axis of the clamping actuator screw when the clamping actuator screw is turned around its axis.