Angle-adjustable projection device for vehicles
View Patent ↗Provided is an angle-adjustable projection device for vehicles, including a bracket assembly and a projection lamp assembly. The bracket assembly includes a fixed bracket fixed to the vehicles and a movable bracket fixed to the fixed bracket. The projection lamp assembly is rotatably connected to a cantilever of the movable bracket. The movable bracket is provided with an adjustment screw, the threaded portion of the adjustment screw is screwed into an adjustment screw hole of a housing of the projection lamp assembly. When the adjustment screw is rotated, the projection lamp assembly can be controlled to rotate relative to the cantilever, thereby adjusting the direction and angle of the image projected by the projection lamp assembly.
1 . An angle-adjustable projection device for vehicles, comprising:
a bracket assembly comprising:
a fixed bracket fixed to the vehicle;
a movable bracket fixed to a first side surface of the fixed bracket and formed with a pair of cantilevers located on opposite sides, the pair of cantilevers extending to a second side surface of the fixed bracket through a hollow portion of the fixed bracket, and the ends of the pair of cantilevers being respectively provided with shaft sleeves;
an adjustment screw rotatably arranged on the movable bracket, and the threaded portion of the adjustment screw extending out of the second side surface of the fixed bracket;
a rubber ring sleeved on the adjustment screw and located between the screw head of the adjustment screw and the movable bracket; and
a screw buckle arranged on the threaded portion of the adjustment screw; and
a projection lamp assembly comprising:
a housing provided with a shaft on opposite sides thereof, the shaft being rotatably matched to the shaft sleeve, one side of the housing being provided with an adjustment screw hole, and the adjustment screw hole matching with the adjustment screw; and
a lens assembly arranged inside the housing to project an image out of the housing.
2 . The angle-adjustable projection device for the vehicles according to claim 1 , wherein the movable bracket comprises a plate body, the plate body is formed with a central hole, and a through hole and an arc-shaped slot hole located on opposite sides of the central hole, and the cantilever extends from the plate body;
wherein, fixing screws pass through the through hole and the arc-shaped slot hole respectively and are locked into screw holes provided in the fixed bracket.
3 . The angle-adjustable projection device for the vehicles according to claim 2 , further comprising: a cap head formed with a straight slot hole;
wherein the adjustment screw passes through the straight slot hole and the center hole, and then is screwed into the adjustment screw hole.
4 . The angle-adjustable projection device for the vehicles according to claim 3 , wherein a slot is formed on an upper side of the cantilever, and the shaft sleeve is arranged in the slot.
5 . The angle-adjustable projection device for the vehicles according to claim 1 , wherein the projection lamp assembly further comprises:
a lamp board assembly disposed in the housing, the lamp board assembly comprising a circuit board and a light-emitting element electrically connected to the circuit board, and light generated by the light-emitting element projects the image of an image element out of the housing through the lens assembly; and
a heat sink connected to the housing and used to absorb and dissipate heat generated by the lamp board assembly.
6 . The angle-adjustable projection device for the vehicles according to claim 5 , wherein a plurality of fins is formed on an outer surface of the heat sink.