Abstract: An air baffle structure is provided for installing a motherboard and inside a case. The case includes an opening. The air baffle structure includes a pair of brackets and an air baffle cover. The pair of brackets are fixed on the case and disposed on two sides of the opening, and the motherboard is pluggably disposed between the pair of brackets. The air baffle cover is connected to tops of the pair of brackets and straddles the pair of brackets. Therefore, the air baffle cover may effectively guide the air to pass through the motherboard to dissipate heat of the motherboard, and the quantity of fans in the case is reduced.

Abstract: A camera-lens waterproofing device is provided, including a shell, a camera lens, a cover ring and an outer cover. A mounting hole is formed in a surface of the shell. The camera lens includes a body and a lens. One end of the body is disposed to the mounting hole, and the other end of the body extends out of the mounting hole. The lens is located at the other end of the body. The cover ring is connected to the body in a sleeving manner and fixed on the mounting hole. The outer cover is fixed at a periphery of the lens in a sleeving manner to form a first-layer waterproof structure and disposed on the surface of the shell, and covers the exterior of the cover ring. The cover ring abuts between the camera lens and the shell to form a second-layer waterproof structure.

Abstract: A handle extension structure includes a connection assembly and an operation assembly. The connection assembly has a first end and a second end opposite to each other. The operation assembly is slidably disposed at the connection assembly. The operation assembly includes an extension element and a grip element. The extension element has a first end portion and a second end portion opposite to each other. The first end portion is slidably disposed between the first end and the second end. The grip element is pivoted to the second end portion. An electronic device casing includes a body, a movable apparatus, and the handle extension structure. The handle extension structure is pivoted to the movable apparatus through the connection assembly.

Abstract: A rotatable ball joint is provided. The rotatable ball joint is adapted to enable an object to be rotatably assembled on a foot stand, where the foot stand includes a fixed hole. The rotatable ball joint includes a friction part, a shapeshifting sphere, and an assembly part. The shapeshifting sphere is adapted to be compressed from a first state to a second state. A size of the shapeshifting sphere in the first state is greater than a size of the fixed hole, and a size of the shapeshifting sphere in the second state is less than the size of the fixed hole. The shapeshifting sphere is adapted to be disposed in the fixed hole. The shapeshifting sphere is connected to the assembly part. The object is adapted to be assembled on the assembly part. The friction part is configured on an outer surface of the shapeshifting sphere.

Abstract: A camera-lens waterproofing device is provided, including a shell, a camera lens, a cover ring and an outer cover. A mounting hole is formed in a surface of the shell. The camera lens includes a body and a lens. One end of the body is disposed to the mounting hole, and the other end of the body extends out of the mounting hole. The lens is located at the other end of the body. The cover ring is connected to the body in a sleeving manner and fixed on the mounting hole. The outer cover is fixed at a periphery of the lens in a sleeving manner to form a first-layer waterproof structure and disposed on the surface of the shell, and covers the exterior of the cover ring. The cover ring abuts between the camera lens and the shell to form a second-layer waterproof structure.

Abstract: A camera-lens waterproofing device is provided, including a shell, a camera lens, a cover ring and an outer cover. A mounting hole is formed in a surface of the shell. The camera lens includes a body and a lens. One end of the body is disposed to the mounting hole, and the other end of the body extends out of the mounting hole. The lens is located at the other end of the body. The cover ring is connected to the body in a sleeving manner and fixed on the mounting hole. The outer cover is fixed at a periphery of the lens in a sleeving manner to form a first-layer waterproof structure and disposed on the surface of the shell, and covers the exterior of the cover ring. The cover ring abuts between the camera lens and the shell to form a second-layer waterproof structure.

Abstract: A rotating assembly is provided and is adapted to be assembled on a foot stand. The rotating assembly includes a limit ring, a base, a spherical friction part, and a pressing module. The limit ring is adapted to be fixed on the foot stand. The base is movably assembled on the limit ring along an axis. The base and the limit ring form a space. The spherical friction part is rotatably disposed in the space between the limit ring and the base. The pressing module is adapted to be fixed on the foot stand. The pressing module is configured on one side of the base along the axis, and pushes the base to a direction of the limit ring to compress the space formed by the base and the limit ring, so that the spherical friction part is in contact with the limit ring and the base. The spherical friction part is temporarily maintained at a specific angle by friction between the spherical friction part and the limit ring and friction between the spherical friction part and the base.

Abstract: A handle extension structure includes a connection assembly and an operation assembly. The connection assembly has a first end and a second end opposite to each other. The operation assembly is slidably disposed at the connection assembly. The operation assembly includes an extension element and a grip element. The extension element has a first end portion and a second end portion opposite to each other. The first end portion is slidably disposed between the first end and the second end. The grip element is pivoted to the second end portion. An electronic device casing includes a body, a movable apparatus, and the handle extension structure. The handle extension structure is pivoted to the movable apparatus through the connection assembly.

Abstract: A push-pull handle module is adapted to lock at least one electronic module in a rack. The push-pull handle module includes a bracket and a handle. The bracket is fixed to the at least one electronic module and includes a slot. The handle is pivotally connected to the bracket and includes a protrusion and a locking portion. The protrusion is slidably disposed into the slot of the bracket. When the handle is in a first position, the locking portion locks rack the at least one electronic module in the rack. When the handle rotates from the first position to a second position relative to the bracket, the locking portion does not lock the at least one electronic module.

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 rotating assembly is provided and is adapted to be assembled on a foot stand. The rotating assembly includes a limit ring, a base, a spherical friction part, and a pressing module. The limit ring is adapted to be fixed on the foot stand. The base is movably assembled on the limit ring along an axis. The base and the limit ring form a space. The spherical friction part is rotatably disposed in the space between the limit ring and the base. The pressing module is adapted to be fixed on the foot stand. The pressing module is configured on one side of the base along the axis, and pushes the base to a direction of the limit ring to compress the space formed by the base and the limit ring, so that the spherical friction part is in contact with the limit ring and the base. The spherical friction part is temporarily maintained at a specific angle by friction between the spherical friction part and the limit ring and friction between the spherical friction part and the base.

Abstract: A rotatable ball joint is provided. The rotatable ball joint is adapted to enable an object to be rotatably assembled on a foot stand, where the foot stand includes a fixed hole. The rotatable ball joint includes a friction part, a shapeshifting sphere, and an assembly part. The shapeshifting sphere is adapted to be compressed from a first state to a second state. A size of the shapeshifting sphere in the first state is greater than a size of the fixed hole, and a size of the shapeshifting sphere in the second state is less than the size of the fixed hole. The shapeshifting sphere is adapted to be disposed in the fixed hole. The shapeshifting sphere is connected to the assembly part. The object is adapted to be assembled on the assembly part. The friction part is configured on an outer surface of the shapeshifting sphere.

Abstract: A camera-lens waterproofing device is provided, including a shell, a camera lens, a cover ring and an outer cover. A mounting hole is formed in a surface of the shell. The camera lens includes a body and a lens. One end of the body is disposed to the mounting hole, and the other end of the body extends out of the mounting hole. The lens is located at the other end of the body. The cover ring is connected to the body in a sleeving manner and fixed on the mounting hole. The outer cover is fixed at a periphery of the lens in a sleeving manner to form a first-layer waterproof structure and disposed on the surface of the shell, and covers the exterior of the cover ring. The cover ring abuts between the camera lens and the shell to form a second-layer waterproof structure.

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.

Abstract: A ventilation fan with lights includes an exhaust fan, a lid, and an illumination apparatus. The lid covers an entrance of the exhaust fan. The lid has plural exhaust gratings and an opening. The exhaust gratings are arranged at least adjacent to opposite sides of the opening. The illumination apparatus is embedded in the opening of the lid. The illumination apparatus includes a lamp housing, a lamp plate, plural light emitting diodes (LEDs), a lampshade, and plural scattering microstructures. LEDs are arranged on the lamp plate. The lampshade covers the lamp housing. The lampshade and the lamp housing cooperate to define a lamp chamber therebetween. The lamp plate and the LEDs are disposed in the lamp chamber. The scattering microstructures are disposed on an inner surface of the lampshade facing the lamp chamber.