The invention discloses a stabilizing support of an
air sampler, and belongs to the technical field of environment monitoring equipment, the stabilizing support comprises a support body and a bearing platform used for bearing the sampler, the top of the support body is connected with the bearing platform through a universal spherical hinge
assembly, and the universal spherical hinge
assembly comprises a base, a universal ball head and a short supporting column; the universal ball head is connected with the bearing platform through a short supporting column, a
gravity center adjusting bin is fixedly arranged below the bearing platform, a
lantern ring type locking mechanism is arranged on the opening portion of the base, and three or more radial guide grooves are formed in the end face of the opening portion of the base in the circumferential direction of the base. Each radial guide groove is internally provided with a locking block capable of sliding along the groove, the locking
lantern ring can be rotated to move in the axial direction of the base, and then the locking blocks are driven to synchronously move inwards along the radial guide grooves through the
conical surface extrusion effect so as to tightly hold the universal ball head. The problems that in the prior art, leveling efficiency is low, locking is prone to loosening, and the anti-overturning capacity is poor are effectively and comprehensively solved.