Can you solve it? Part3

Given a triangle $ABC$ . $BL$ is the bisector of angle $ABC$ , $H$ is the orthocenter and $P$ is the mid-point of $AC$ . $PH$ intersects $BL$ at $Q$ . If $∠ABC=β$ , find the ratio $PQ:HQ$ . If $QR⊥BC$ and $QS⊥AB$ ,find on which line the orthocentre lies.