Abstract: A hanging rack is used for a device with a housing, and the hanging rack includes a supporting member and a latching member. One end of the supporting member has a latching slot, and the other end of the supporting member has a hook. The supporting member can slide inside the device with the housing, and the hook can extend outward from the inside of the device with the housing. The latching member is movably arranged in a cavity inside the device with the housing and acted by elastic force, and a tip of the latching member protrudes from the cavity, and the tip is buckled with the latching slot when the latching member is pressed by the supporting member, or the tip is released from the latching slot when the latching member is pressed again by the supporting member.

Abstract: A light source module includes a ring light guide, at least one light source, a reflector, and a diffuser. The ring light guide includes a ring body and at least one light incident portion. The ring light guide has a light exit surface and a bottom surface, which are two opposite ring surfaces of the ring body. The ring body has a plurality of optical structures disposed along the ring body. The at least one light incident portion is disposed on the ring body and protrudes from a lateral side of the ring body. The light incident portion has a light incident surface, wherein a plane where the light incident surface lies crosses a plane where the light exit surface lies.

Abstract: A light source module includes a ring light guide, at least one light source, a reflector, and a diffuser. The ring light guide includes a ring body and at least one light incident portion. The ring light guide has a light exit surface and a bottom surface, which are two opposite ring surfaces of the ring body. The ring body has a plurality of optical structures disposed along the ring body. The at least one light incident portion is disposed on the ring body and protrudes from a lateral side of the ring body. The light incident portion has a light incident surface, wherein a plane where the light incident surface lies crosses a plane where the light exit surface lies.

Abstract: A foldable frame includes first and second upper bars, first and second lower bars, and first and second pin joint pieces. The first and second pin joint pieces are respectively provided with first and second pin joint holes. The first and second lower bars are respectively fixed with the first and second pin joint pieces. The first pin joint piece is pin-jointed with the second pin joint piece through the first pin joint hole, and end surfaces of the first and second pin joint pieces respectively abut against end portions of the second and first lower bars. Two ends of the first upper bar are respectively pin-jointed with an upper end of a front wheel support and at the second pin joint hole of the second pin joint piece. Two ends of the second upper bar are respectively pin-jointed with a rear wheel support and at the second pin joint hole of the first pin joint piece.

Abstract: A foldable frame includes first and second upper bars, first and second lower bars, and first and second pin joint pieces. The first and second pin joint pieces are respectively provided with first and second pin joint holes. The first and second lower bars are respectively fixed with the first and second pin joint pieces. The first pin joint piece is pin-jointed with the second pin joint piece through the first pin joint hole, and end surfaces of the first and second pin joint pieces respectively abut against end portions of the second and first lower bars. Two ends of the first upper bar are respectively pin-jointed with an upper end of a front wheel support and at the second pin joint hole of the second pin joint piece. Two ends of the second upper bar are respectively pin-jointed with a rear wheel support and at the second pin joint hole of the first pin joint piece.

Abstract: A method for increasing an operating rate of a graphics card includes: raising a rotation rate of a radiator fan of a graphics processing unit chip of the graphics card to a first rotation rate according to a rate increasing command; raising a voltage inputted to the graphics processing unit chip to a first voltage, and raising a voltage inputted to a memory of the graphics card to a second voltage when the rotation rate of the radiator fan is approximately equal to the first rotation rate; and raising a timing of the graphics processing unit chip to a first timing, and raising a timing of the memory to a second timing when the voltage inputted to the graphics processing unit chip is approximately equal to the first voltage, the voltage inputted to the memory being approximately equal to the second voltage.

Abstract: A method for increasing an operating rate of a graphics card includes: raising a rotation rate of a radiator fan of a graphics processing unit chip of the graphics card to a first rotation rate according to a rate increasing command; raising a voltage inputted to the graphics processing unit chip to a first voltage, and raising a voltage inputted to a memory of the graphics card to a second voltage when the rotation rate of the radiator fan is approximately equal to the first rotation rate; and raising a timing of the graphics processing unit chip to a first timing, and raising a timing of the memory to a second timing when the voltage inputted to the graphics processing unit chip is approximately equal to the first voltage, the voltage inputted to the memory being approximately equal to the second voltage.