US Patent 9820439 Particle collecting device

A particle connecting device includes a cage having a hub and a cover on each of two ends thereof. A handle is pivotably connected between the two covers and the two hubs. The cage is composed of multiple resilient wires which are bow-shaped, and the two ends of the resilient wires are respectively connected to two end pieces. Each hub includes pivotal portions which are pivotably connected to the corresponding end piece. The pivotal portions each include a hook to hook the cover. A shaft extends through the center of each of the hub and cover, and is pivotably connected to a respective lug of the handle in axial and radial directions.