Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: An assembling structure for a vehicle carrying device is provided, including: a tubular member, a first abutting member, an expansion mechanism and an actuating member. The tubular member has an axial direction and is configured to be inserted within a trailer hitch. A wall of the tubular member has a through hole. The first abutting member is movable along the axial direction and disposed in the tubular member. The expansion mechanism includes a second abutting member disposed on the first abutting member and an elastic member. The second abutting member is located within the through hole and urgeable to move by the first abutting member. The elastic member is disposed between the second abutting member and one of the tubular member and the first abutting member so that the second abutting member has a tendency to move radially in a direction toward the first abutting member.

Abstract: An assembling structure for a vehicle carrying device is provided, including: a tubular member, a first abutting member, an expansion mechanism and an actuating member. The tubular member has an axial direction and is configured to be inserted within a trailer hitch. A wall of the tubular member has a through hole. The first abutting member is movable along the axial direction and disposed in the tubular member. The expansion mechanism includes a second abutting member disposed on the first abutting member and an elastic member. The second abutting member is located within the through hole and urgeable to move by the first abutting member. The elastic member is disposed between the second abutting member and one of the tubular member and the first abutting member so that the second abutting member has a tendency to move radially in a direction toward the first abutting member.

Abstract: A bicycle carrier is provided, including a main rod, two lateral rods, a middle rod and a base. The two lateral rods are disposed on two sides of the main rod. The base is disposed on the main rod. The middle rod is swingable and foldable relative to the base when the middle rod is pressed downwardly relative to the base.

Abstract: A positioning clamp of the present invention includes a tightening body and a fastening assembly. The tightening body includes an insertion hole. Two ends of the tightening body are spacedly arranged. The fastening assembly is disposed on the tightening body and is movable between a fastening position and a release position.

Abstract: A pivoting mechanism includes a rotation assembly and a fixation assembly. The rotation assembly includes a first member and a second member which are rotatable with respect to each other. The fixation assembly includes a first fixation member, a first elastic member, and a first pushing member. The first fixation member is received in the rotation assembly. The first fixation member selectively blocks the first member and the second member. The first fixation member is disposed between the first elastic member and the first pushing member.

Abstract: An assembling structure for vehicle carrying device is provided, including: a tubular member, having an axial direction, configured to be inserted within a trailer hitch of a vehicle, a wall of the tubular member having a through hole; a first abutting member, being movable along the axial direction and disposed in the tubular member; an expansion mechanism, including a second abutting member movably disposed on the first abutting member, the second abutting member being located within the through hole and urgeable to move by the first abutting member; an actuating member, being connected with the first abutting member, configured to be externally operable to drive the first abutting member to move axially and urge the second abutting member to move radially.

Abstract: The spinning knob includes a shell, a rotation member, and a pushing member. The rotation member is rotatably disposed on the shell. The rotation member includes a threaded portion for screwing with a screw. The pushing member is arranged on the shell and tends to abut against the rotation member to have circumferential interference with the rotation member so that the shell and the rotation member may rotate simultaneously. When the rotation member is screwed to the screw sufficiently and an end of the rotation member abuts against an object, if the shell is further rotated, the rotation member obliquely abuts against the pushing member to make the pushing member trip away from the rotation member so that the pushing member has no circumferential interference with the rotation member and that the shell is rotatable with respect to the rotation member.

Abstract: The spinning knob includes a shell, a rotation member, and a pushing member. The rotation member is rotatably disposed on the shell. The rotation member includes a threaded portion for screwing with a screw. The pushing member is arranged on the shell and tends to abut against the rotation member to have circumferential interference with the rotation member so that the shell and the rotation member may rotate simultaneously. When the rotation member is screwed to the screw sufficiently and an end of the rotation member abuts against an object, if the shell is further rotated, the rotation member obliquely abuts against the pushing member to make the pushing member trip away from the rotation member so that the pushing member has no circumferential interference with the rotation member and that the shell is rotatable with respect to the rotation member.

Abstract: A supporting structure is provided for a bike-carrying rack which includes a main body. The supporting structure includes a supporting member having a pivot portion pivoted to the main body, and a position-restricting assembly. The pivot portion has an axis, and the supporting member pivotally swings about the axis to be in a carrying position or a folded position. The position-restricting assembly has two restricting members assembled on the main body, the two restricting members are located by two opposite sides of the pivot portion, and a connection direction of the two restricting members is oblique to the axis. When being in the carrying position, the supporting member abuts against the two restricting members; and when being in the folded position, the supporting member at least non-abuts against one of the two restricting members. A bike-carrying rack including the supporting structure is further provided.

Abstract: A crossbar of a vehicle roof rack is provided for being arranged on a car roof, and the crossbar of a vehicle roof rack includes a bar member and two strips. The bar member defines a longitudinal direction and includes a slide slot and two engagement slots which extend along the longitudinal direction, and the two engagement slots are formed on two sides of the slide slot and parallel to the slide slot. Each of the two strips includes an engaging portion which is connected to one of the two strips, each of the two engaging portions is engaged within one of the two engagement slots, and the two strips extend relative to each other and cover the slide slot.

Abstract: A foldable positioning structure for a bicycle rack includes a fixing member movable between first and second positions, an elastic assembly and a controlling assembly for being assembled to the fixing rod. The elastic assembly is assembled to a fixing rod and the fixing member so as to restrict the fixing member in the first position normally. The controlling assembly is movable between third and fourth position relative to the fixing rod and includes a pivot member and a controlling member, the pivot member is assembled to the fixing rod and pivoted to the controlling member, a free end of the controlling member is assembled to the fixing member. The fixing member is selectively restricted or nonrestricted by the movable member so that the movable member is swingable or nonswingable relative to the fixing rod.

Abstract: A supporting structure is provided for a bike-carrying rack which includes a main body. The supporting structure includes a supporting member having a pivot portion pivoted to the main body, and a position-restricting assembly. The pivot portion has an axis, and the supporting member pivotally swings about the axis to be in a carrying position or a folded position. The position-restricting assembly has two restricting members assembled on the main body, the two restricting members are located by two opposite sides of the pivot portion, and a connection direction of the two restricting members is oblique to the axis. When being in the carrying position, the supporting member abuts against the two restricting members; and when being in the folded position, the supporting member at least non-abuts against one of the two restricting members. A bike-carrying rack including the supporting structure is further provided.

Abstract: A bicycle carrier includes a base rack, a main body, and a restriction element. The base rack is connected to a vehicle body and a limiting element therebetween. The limiting element has a horizontal sliding groove and an arc sliding groove which is below the horizontal sliding groove. An end of the main body is pivotally connected to the limiting element, and the other end is connected to a supporting element. The main body is formed with an elongated groove corresponding to the horizontal and the arc sliding grooves. The restriction element is inserted through the main body and is connected to the limiting element via an elastic element. A pin element is inserted through the restriction element to be slidable in the elongated groove. The elastic element makes the restriction element tend to move toward the base rack.

Abstract: A foldable positioning structure for a bicycle rack includes a fixing member movable between first and second positions, an elastic assembly and a controlling assembly for being assembled to the fixing rod. The elastic assembly is assembled to a fixing rod and the fixing member so as to restrict the fixing member in the first position normally. The controlling assembly is movable between third and fourth position relative to the fixing rod and includes a pivot member and a controlling member, the pivot member is assembled to the fixing rod and pivoted to the controlling member, a free end of the controlling member is assembled to the fixing member. The fixing member is selectively restricted or nonrestricted by the movable member so that the movable member is swingable or nonswingable relative to the fixing rod.