Projection device

1 . A projection device, comprising:

a main body;

a cover body;

a light-emitting assembly;

a film assembly; and

an imaging assembly;

wherein the cover body is movably connected to the main body;

wherein the light-emitting assembly is configured to emit light signals;

wherein the film assembly is disposed on a transmission path of the light signals;

wherein the imaging assembly is configured to image the light signals after passing through the film assembly, when the cover body covers the main body, the imaging assembly is disposed on one side of the film assembly facing away from the light-emitting assembly;

wherein the light-emitting assembly and the film assembly are disposed in the main body, and the imaging assembly is disposed in the cover body;

wherein the cover body comprises an outer frame and a rotating cover, the outer frame is movably connected to the main body, the outer frame defines a mounting hole on a middle portion, the rotating cover is disposed in the mounting hole and is capable of rotating with respect to the outer frame, the rotating cover is connected to the imaging assembly and is capable of driving the imaging assembly to rotate to adjust a distance between the imaging assembly and the film assembly.

2 . The projection device according to claim 1 , wherein the cover body defines an opening, the imaging assembly is at least partially disposed in the opening to emit light therethrough.

3 . The projection device according to claim 2 , wherein the cover body is rotatably connected to the main body, so as to cover or open the main body.

4 . The projection device according to claim 3 , wherein the projection device further comprises an elastic component, the elastic component is elastically connected between the cover body and the main body, and the elastic component is configured to drive the cover body to cover the main body.

5 . The projection device according to claim 4 , wherein the projection device further comprises a rotating shaft, the cover body is rotatably connected to the main body through the rotating shaft; and

the elastic component is a torsion spring, the elastic component is sleeved on the rotating shaft and is configured to drive the cover body to cover the main body.

6 . The projection device according to claim 3 , wherein the main body defines a notch on one side facing the cover body, the notch is configured to partially expose the cover body for opening the cover body.

7 . The projection device according to claim 2 , wherein the cover body comprises a cover plate, the cover plate is connected to the outer frame and is disposed at a first side of the rotating cover facing the main body;

the cover plate defines a through hole, the imaging assembly is disposed in the through hole;

first threads are disposed on an outer surface of the imaging surface, second threads are disposed on an inner wall of the through hole, and the second threads are threadedly engaged with the first threads, so as to adjust the distance between the imaging assembly and the film assembly.

8 . The projection device according to claim 7 , wherein protruding ribs are disposed on a second side of the rotating cover facing away from the cover plate, and the protruding ribs are uniformly disposed around the opening.

9 . The projection device according to claim 1 , wherein the imaging assembly comprises at least one limiting protrusion, the rotating cover defines at least one limiting groove, the at least one limiting protrusion is engaged with the limiting groove to drive the imaging assembly to rotate by the rotating cover; or

the imaging assembly defines the at least one limiting groove, the rotating cover comprises the at least one limiting protrusion, the at least one limiting protrusion is engaged with the limiting groove to drive the imaging assembly to rotate by the rotating cover.

10 . The projection device according to claim 1 , wherein the film assembly comprises a support component and a film sheet, the support component is disposed in the main body, and the film sheet is detachably mounted on the support component; and

when the cover body and the main body are in an open state, the main body exposes the film sheet.

11 . The projection device according to claim 10 , wherein the support component comprises a support portion and a snap-fit portion, the support portion is configured to support the film sheet, the snap-fit portion is connected to a periphery of the support portion, and the snap-fit portion is configured to limit the film sheet.

12 . The projection device according to claim 11 , wherein the snap-fit portion comprises snap-fit retainers, the snap-fit retainers are disposed at intervals, a first end of each of the snap-fit retainers is fixedly connected to the support portion, and the snap-fit retainers are configured to clamp the film sheet.

13 . The projection device according to claim 12 , wherein at least some of the snap-fit retainers comprise a positioning protrusion at a second end thereof, each positioning protrusion is disposed on one side of a corresponding one of the snap-fit retainers facing the film sheet; and

when the film sheet is mounted on the support component, the film sheet is disposed between each positioning protrusion and the support portion.

14 . The projection device according to claim 11 , wherein the film sheet defines at least one limiting notch, the support portion comprises a support plate and at least one limiting portion, the at least one limiting portion protrudes from the support portion, the film sheet is disposed on the support plate, and the at least one limiting portion is disposed in the at least one limiting notch.

15 . The projection device according to claim 10 , wherein the projection device further comprises a driving component and a gear assembly;

the driving component and the gear assembly are disposed in the main body, the support component comprises a toothed portion at an edge thereof, the driving component is engaged with the toothed portion of the support component through the gear assembly to drive the support component and the film sheet to rotate.

16 . The projection device according to claim 15 , wherein the gear assembly comprises a driving gear, and a driving shaft of the driving component is fixedly connected to the driving gear; and

the driving gear is engaged with the toothed portion of the support component.

17 . The projection device according to claim 15 , wherein the projection device further comprises a bracket, the bracket is disposed in the main body and is disposed between the light-emitting assembly and the film assembly;

the bracket comprises a cylindrical body and a plate body disposed surrounding the cylindrical body, the cylindrical body passes through the plate body, and the support component is capable of rotating with respect to the cylindrical body; and

the film sheet is at least partially disposed opposite to a first end of the cylindrical body, the light-emitting assembly is at least partially disposed opposite to a second end of the cylindrical body; and

the driving component is disposed on the bracket, the driving component and the support component are respectively at two sides of the plate body.

18 . The projection device according to claim 17 , wherein the projection device further comprises a pressing plate, the pressing plate is disposed at one side of the bracket facing away from the light-emitting component, the support component is rotatably disposed at one side of the pressing plate facing away from the bracket, and the pressing plate and the bracket are disposed in the main body.

19 . The projection device according to claim 18 , wherein the projection device further comprises a first condenser and a second condenser, the first condenser is disposed at the second end of the cylindrical body, and the second condenser is disposed at the first end of the cylindrical body.

20 . A projection device, comprising:

a main body;

a cover body;

a light-emitting assembly;

a bracket;

a driving component disposed in the main body;

a film assembly; and

an imaging assembly;

wherein the cover body is movably connected to the main body;

wherein the light-emitting assembly is configured to emit light signals;

wherein the film assembly is disposed on a transmission path of the light signals;

wherein the imaging assembly is configured to image the light signals after passing through the film assembly, when the cover body covers the main body, the imaging assembly is disposed on one side of the film assembly facing away from the light-emitting assembly;

wherein the light-emitting assembly and the film assembly are disposed in the main body, and the imaging assembly is disposed in the cover body;

wherein the film assembly comprises a support component and a film sheet, the support component is disposed in the main body, the film sheet is detachably mounted on the support component, and when the cover body and the main body are in an open state, the main body exposes the film sheet;

wherein the bracket is disposed in the main body and is disposed between the light-emitting assembly and the film assembly;

wherein the bracket comprises a cylindrical body and a plate body disposed surrounding the cylindrical body, the cylindrical body passes through the plate body, and the support component is capable of rotating with respect to the cylindrical body;

wherein the film sheet is at least partially disposed opposite to a first end of the cylindrical body, the light-emitting assembly is at least partially disposed opposite to a second end of the cylindrical body;

wherein the driving component is disposed on the bracket, the driving component and the support component are respectively at two sides of the plate body.