Bag type dust collector and sectioned bag cage thereof

The invention discloses a sectioned bag cage which comprises multiple connected bag cage sections. A clamping groove is formed in one of any two adjacent bag cage sections, and a clamping hook which can extend into the clamping groove to be clamped with the clamping groove so as to achieve connection of the two bag cage sections is arranged on the other of the two adjacent bag cage sections. In the sectioned bag cage, hook-groove structures are adopted replace elastic clamps so as to achieve connection of the bag cage sections, the phenomenon of filter bag puncture caused by drop of the elastic clamps is fundamentally avoided, and normal work of the sectioned bag cage is ensured. In addition, in the mode that the bag cage sections are connected by adopting the hook-groove structures, the accuracy requirement for matching sizes of the connecting positions of the upper and lower bag cage sections is greatly loosened, the manufacturing accuracy of connecting members is also reduced, the clamping grooves and the clamping hooks are both fixed to the bag cage sections, integration of the bag cage sections and the connecting members is achieved, and the connecting stability can be better. Furthermore, free-hand installation can be also achieved without special installing tools, and mounting and dismounting operation are more convenient. The invention further provides a bag type dust collector provided with the sectioned bag cage.