Abstract: A knob assembly includes a lower housing, a pushing member, an upper housing, and a screw member. The lower housing includes a tank and hook structures. A through via is formed at the center of the lower housing. The upper housing is rotatably stacked on the lower housing. A lower surface of the upper housing includes an annular hook groove. The pushing member is disposed between the upper and the lower housing, and includes a body and pushing structures. A screw hole is formed at the center of the body. When the screw member is screwed into the screw hole through the through via, the pushing member moves toward and locks the lower housing, and the pushing structures push the hook structures to cause the hook structures to expand outward and be hooked to the annular hook groove, so that the upper housing is limited by the lower housing.

Abstract: A knob assembly includes a lower housing, a pushing member, an upper housing, and a screw member. The lower housing includes a tank and hook structures. A through via is formed at the center of the lower housing. The upper housing is rotatably stacked on the lower housing. A lower surface of the upper housing includes an annular hook groove. The pushing member is disposed between the upper and the lower housing, and includes a body and pushing structures. A screw hole is formed at the center of the body. When the screw member is screwed into the screw hole through the through via, the pushing member moves toward and locks the lower housing, and the pushing structures push the hook structures to cause the hook structures to expand outward and be hooked to the annular hook groove, so that the upper housing is limited by the lower housing.

Abstract: A knob device includes a lower cover assembly, an upper cover assembly, a limiting member and an annular member. The lower cover assembly includes a first stopping portion. The upper cover assembly is rotatably stacked on the lower cover assembly along an axis. The upper cover assembly has multiple fixing holes. The limiting member is located between the upper cover assembly and the lower cover assembly and fixed to the lower cover assembly. The limiting member includes a body and a second stopping portion extending from the body. The second stopping portion and first stopping portion are arranged up and down along the axis. The annular member is arranged around the body, and the annular member is rotatably arranged between the first stopping portion of the lower cover assembly and the second stopping portion. The first stopping portion and the second stopping portion limit the annular member on the axis. The annular member includes multiple pogo pins retractably protruding from an outer surface.

Abstract: A button indicator and a light guiding ring assembly are provided. The button indicator includes a button cover and a light guiding ring. The button cover has a cover body, retaining walls and hooks. The cover body has a top surface and a bottom surface. The retaining walls and the hooks protruded from the bottom surface are disposed around the cover body. The light guiding ring sleeved on the button cover has a ring body, elastic arms, a sliding matching groove and light guiding portions. The ring body has an inner surface with the elastic arms and the sliding matching groove disposing thereon and an outer surface with the light guiding portions locating thereon. The retaining walls abut against the inner surface of the ring body, and the hooks move along and snap the sliding matching groove. The elastic arms abut against the bottom surface of the cover body.

Abstract: A button indicator and a light guiding ring assembly are provided. The button indicator includes a button cover and a light guiding ring. The button cover has a cover body, retaining walls and hooks. The cover body has a top surface and a bottom surface. The retaining walls and the hooks protruded from the bottom surface are disposed around the cover body. The light guiding ring sleeved on the button cover has a ring body, elastic arms, a sliding matching groove and light guiding portions. The ring body has an inner surface with the elastic arms and the sliding matching groove disposing thereon and an outer surface with the light guiding portions locating thereon. The retaining walls abut against the inner surface of the ring body, and the hooks move along and snap the sliding matching groove. The elastic arms abut against the bottom surface of the cover body.

Abstract: A knob assembly includes a disk housing body and an annular base. The disk housing body includes a cover plate, a limiting structure, and a side wall structure. The cover plate and the limiting structure are disposed opposite to each other. The side wall structure is connected to the cover plate and the limiting structure to form a horizontal annular groove. The annular base is embedded in the horizontal annular groove, so that the disk housing body can rotate relative to the annular base. A shuttle knob includes the foregoing knob assembly, a substrate, a reflection layer, and a detection apparatus. The knob assembly is disposed on the substrate by using the annular base. The reflection layer is disposed between the disk housing body and the annular base, and the reflection layer includes a feature pattern. The detection apparatus is disposed on the substrate.