  Unconventional topological quasiparticles have recently garnered significant
attention in the realm of condensed matter physics. Here, based on
first-principles calculations and symmetry analysis, we reveal the coexistence
of multiple types of interesting unconventional topological quasiparticles in
the phonon spectrum of the chiral crystal CsBe$_2$F$_5$. Specifically, we
identified eight entangled phonon bands in CsBe$_2$F$_5$, which give rise to
various unconventional topological quasiparticles, including the spin-1 Weyl
point, the charge-2 Dirac point, the nodal surface, and the hourglass nodal
loop. We demonstrate that these unconventional topological quasiparticles are
protected by crystal symmetry. We show that there are two large Fermi arcs
connecting projections of the bulk spin-1 Weyl point and charge-2 Dirac point
on the (001) surface and across the entire surface Brillouin zone. Our work not
only elucidates the intriguing topological properties of chiral crystals but
also provides an excellent material platform for exploring the fascinating
physics associated with multiple types of unconventional topological
quasiparticles.
