In this work, we systematically investigate the baryon-baryon interactions in singly bottomed dibaryon systems within the chiral quark model and search for possible bound states. By exploring the baryon-baryon interaction, we find that low-isospin channels tend to generate deeper attractive interactions and are prone to form bound states. We also find that decuplet-decuplet systems tend to show stronger attraction and support a larger number of bound states, whereas octet-octet systems generally exhibit weaker attraction and fewer bound solutions. The binding behavior of octet-decuplet systems generally lies between these two cases. Several bound states are obtained, which are ^*_b with IJ = 1/2 0, 1/2 1, 1/2 2, 1/2 3, and 3/2 3, the _b with IJ = 1/2 1, 1/2 2, 3/2 1, and 3/2 2, the N^*_b with IJ = 1/2 2, the _b with IJ = 00, 01, and 11, the ^*_b with IJ = 01 and 02, the ^*_b with IJ = 01 and 02, and the ^^_b with IJ = 00, 01, 02, 03, and 13. Further investigations of the corresponding scattering processes are still required to determine whether these bound-state candidates can be identified. These states deserve further experimental investigation.