CN214098068U - Story projector capable of changing film in open-close mode - Google Patents
Story projector capable of changing film in open-close mode Download PDFInfo
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- CN214098068U CN214098068U CN202023350780.2U CN202023350780U CN214098068U CN 214098068 U CN214098068 U CN 214098068U CN 202023350780 U CN202023350780 U CN 202023350780U CN 214098068 U CN214098068 U CN 214098068U
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Abstract
The utility model relates to the technical field of illumination and optical projection, in particular to a story projector capable of changing films in an opening and closing way, which comprises an upper shell, a lower shell and a hinge device which is rotatably and movably connected with the upper shell and the lower shell; the hinge device connects the upper shell and the lower shell to form an openable accommodating space, and a fixed support, a first infrared sensor, a motor, an LED light source, a condenser lens group, a projection disc mounting frame, a projection disc, a lithium battery and a main control circuit board are arranged in the accommodating space; the upper shell comprises a focusing lens mounting hole, a focusing lens group and a second infrared sensor mounted on the inner surface of the upper shell; the lower shell comprises a power interface hole and a key hole. The utility model discloses a simple easy-to-use open-close type lid closes the structure, conveniently changes the projection dish, can change different projection films at will.
Description
Technical Field
The utility model relates to the technical field of lighting technology, also relate to optical projection technical field, in particular to but story projector of open-close type film change.
Background
The story projector is provided with the switchable multi-projection film turntable, so that different projection patterns can be conveniently and easily switched, and the story projector has a good application prospect in the aspects of early education, child teaching or interesting play; meanwhile, different projection images can be switched, different projection picture styles can be changed, and the story projector is also a home decorative lamp with good atmosphere building capability. The story projector is mainly used for amplifying pictures of patterns printed on a projection film through optical projection and projecting the pictures on a wall surface, a curtain or a ceiling so as to project the patterns printed on the film or create a specific environment atmosphere or scene, for example, a starry sky environment or a marine environment is created by projection.
The existing story projector in the market at present has the following problems: firstly, the traditional structure of switching projection patterns by the swing rod is not convenient enough, and the alignment of switching projection patterns is not accurate enough; secondly, the projected picture is not clear enough, the distance between the projected image and the projector is too short, and the picture size of the projected image is too small; thirdly, the light source brightness of the projector is not enough or the light source brightness is not adjustable, and the environmental adaptability is not high; fourthly, most dry batteries are used and need to be replaced frequently, which is not economical enough.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention provides a story projector with a retractable cover structure, which is easy to replace the projection disc and different sheets can be replaced at will; the high-brightness LED light source is used, the brightness can be adjusted in multiple stages, and the environmental adaptability is high; the structure of the focusing lens group is adopted, so that focusing can be facilitated, the distance of a projected image is longer, and the size of the image is larger and clearer; the infrared sensor is used for controlling the switching piece, and compared with the traditional mechanical swing rod switching piece, the structure is more accurate, more intelligent and more convenient; the utility model discloses built-in chargeable lithium cell need not often to change the dry battery, has more economic nature.
In order to achieve the above purpose, the utility model provides a technical scheme does:
a story projector capable of changing films in an opening and closing way comprises an upper shell, a lower shell and a hinge device which is rotatably and movably connected with the upper shell and the lower shell; the hinge device connects the upper shell and the lower shell to form an openable accommodating space, and a fixed support, a first infrared sensor, a motor, an LED light source, a condenser lens group, a projection disc mounting frame, a projection disc, a lithium battery and a main control circuit board are arranged in the accommodating space; the fixed support is fixedly arranged on the lower shell, and the first infrared sensor, the motor, the LED light source, the condenser lens group and the projection disc mounting rack are all connected with the fixed support; the projection disk is rotatably and movably connected with the projection disk mounting frame; the lithium battery and the main control circuit board are both fixedly connected with the lower shell; the upper shell comprises a focusing lens mounting hole, a focusing lens group and a second infrared sensor mounted on the inner surface of the upper shell; the lower shell comprises a power interface hole and a key hole.
Specifically, the motor comprises a driving gear fixed on a motor shaft core.
Specifically, the first infrared sensor is an infrared light emitter or an infrared light receiver; when the first infrared sensor is an infrared light emitter, the second infrared sensor is an infrared light receiver; when the first infrared sensor is an infrared light receiver, the second infrared sensor is an infrared light emitter; the first infrared sensor and the second infrared sensor can be combined to form a group of infrared induction photoelectric switches; when the upper shell and the lower shell are in a closed state, the first infrared sensor is over against the second infrared sensor and keeps a certain gap, and the gap can accommodate the projection disc to rotate and movably pass through the gap in a non-contact manner.
Specifically, the condensing lens group comprises a lens group shell and a convex lens fixed in the lens group shell, and the condensing lens group is installed and fixed on the LED light source to converge and enhance the light source.
Specifically, the projection disc mounting frame comprises a lower concave mounting disc part, a projection through hole, a rotating shaft buckling hole and a Y-shaped abutting part; the rotating shaft buckling hole is used for being butted and buckled with a sliding buckle type rotating shaft of the projection disc, so that the projection disc can be rotatably and movably connected with the projection disc mounting frame; the Y-shaped abutting piece is formed by hollowing out the mounting surface of the projection disk mounting rack, comprises 2 pieces of elastic material and has certain movable elasticity capable of deviating, and the Y-shaped opening is in a semi-arc shape and is aligned with each other to form a round rotating shaft buckling hole; the projection disc mounting rack is connected with the fixed support through a buckle or a screw.
Specifically, the projection disc comprises a projection wheel disc, a projection lamp sheet and a pressing disc; the projection wheel disc comprises an outer gear ring, a positioning convex part, a projection window, a sensing through hole and a sliding buckle type rotating shaft, wherein the outer gear ring is used for being meshed with the driving gear in a butt joint mode, the positioning convex part is used for being in butt joint with the positioning hole, the sensing through hole is used for allowing infrared light to penetrate through, the infrared light emitted by the infrared light emitter can be received by the infrared light receiver through the sensing through hole, and the sliding buckle type rotating shaft is used for being in buckling butt joint with the rotating shaft buckling hole; the projection lamp sheet is provided with a positioning hole and a projection pattern printing part; the pressing disc comprises a rotating shaft penetrating hole, a projection window and a positioning hole, and the pressing disc is buckled with the projection wheel disc through a buckle, so that the projection lamp sheet is fixedly installed between the projection lamp sheet and the projection wheel disc.
Specifically, the focusing lens group comprises a focusing lens movable assembly, a lens fixing seat and a lens fixing ring; the focusing lens movable assembly comprises a focusing rotating ring and a lens external member, wherein the focusing rotating ring is provided with internal threads, the lens external member comprises a convex lens, an embedded fixing external member and an outer ring external member, the outer ring external member is provided with external threads and a U-shaped concave position, the external threads are butted and meshed with the internal threads of the focusing rotating ring, and the focusing rotating ring and the lens external member can relatively rotate through thread meshing; the lens fixing ring comprises a fixing sliding column, the fixing sliding column is used for being in butt joint with the U-shaped concave position to clamp positions, and when the focusing rotating ring is rotated, the lens kit can only slide up and down along the fixing sliding column, so that the focusing function is realized.
Specifically, the centers of the focusing lens group, the projection through hole, the condenser lens group and the LED light source are all located on the same projection optical axis.
Specifically, the main control circuit board comprises an MCU, a light adjusting module, a motor control module and an infrared remote control module; the MCU processes the electric signals transmitted by the infrared sensor, defines, judges and sends out signals for stopping the rotation of the motor, and the motor control module controls the starting or stopping of the motor, so that the projection disk is driven to rotate and stop, and the switching of projection patterns is realized.
To sum up, the utility model provides a pair of but story projector of automatic switch-over, its beneficial effect lies in:
firstly, a simple and easy-to-use opening-closing type covering structure is adopted, so that the projection disc is convenient to replace, and different projection films can be replaced at will;
secondly, a high-brightness LED light source is used, the brightness can be adjusted in multiple stages, and the environmental adaptability is high;
thirdly, the structure of the focusing lens group is adopted, so that focusing can be facilitated, the distance of a projected image is longer, and the size of the image is larger and clearer;
the infrared sensor is used for controlling the switching piece, and compared with the traditional mechanical swing rod switching piece, the structure is more accurate, more intelligent and more convenient;
fifth, the utility model discloses built-in chargeable lithium cell need not often to change the dry battery, has more economic nature.
Drawings
Fig. 1 is an overall perspective view of the present invention;
FIG. 2 is a first schematic view of the uncapping three-dimensional structure of the present invention;
FIG. 3 is a schematic view of the uncapping three-dimensional structure of the present invention;
FIG. 4 is an exploded view of the overall structure of the present invention;
fig. 5 is a structural diagram of the infrared sensor of the present invention;
fig. 6 is a schematic view of a projection disk mounting bracket of the present invention;
fig. 7 is an exploded view of the projection plate of the present invention;
fig. 8 is an exploded view of the movable assembly of the focusing lens of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further clearly and completely described with reference to the accompanying drawings. It should be understood that the embodiments described herein are only for explaining the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. All other embodiments obtained by a person skilled in the art without making any inventive step are intended to be included within the scope of protection of the present invention.
In the description of the present invention, it should be noted that, in order to clearly express the position of the structure, the terms "upper", "lower", "first", "second", etc. indicate the orientation or sequence relation, which is only for the convenience of describing the present invention and simplifying the description, but not to indicate or imply that the device or components referred to must have a specific orientation or sequence or be constructed and operated in a specific orientation or sequence, and thus should not be construed as limiting the present invention.
In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a manner of fastening by bolts, pins, sliders, or snaps, or welding or adhesive fastening, or a manner of connecting by a rotating shaft, which is commonly used in the prior art. Therefore, details are not described in the present embodiment.
Referring to fig. 1-4, a story projector capable of changing pictures in an opening and closing manner includes an upper casing 1, a lower casing 2, and a hinge device 3 rotatably and movably coupling the upper casing 1 and the lower casing 2; the hinge device 3 connects the upper shell 1 and the lower shell 1 to form an openable accommodation space, and a fixed support 21, a first infrared sensor 22, a motor 23, an LED light source 24, a condenser lens group 25, a projection disc mounting frame 26, a projection disc 4, a lithium battery 27 and a main control circuit board 28 are arranged in the accommodation space; the fixed bracket 21 is fixedly arranged on the lower shell 2, and the first infrared sensor 22, the motor 23, the LED light source 24, the condenser lens group 25 and the projection disk mounting rack 26 are all connected with the fixed bracket 27; the projection disk 4 is rotatably and movably connected with a projection disk mounting frame 26; the lithium battery 27 and the main control circuit board 28 are both fixedly connected with the lower shell 2; the upper shell 1 comprises a focusing lens mounting hole 10, a focusing lens group 11 and a second infrared sensor 12 mounted on the inner surface of the upper shell 1; the lower shell comprises a power interface hole and a key hole.
Referring to fig. 4, the motor 23 includes a driving gear 230 fixed to a shaft core of the motor 23.
Referring to fig. 5, the first infrared sensor 22 is an infrared light emitter or an infrared light receiver; when the first infrared sensor 22 is an infrared light emitter, the second infrared sensor 12 is an infrared light receiver; when the first infrared sensor 22 is an infrared light receiver, the second infrared sensor 12 is an infrared light emitter; the first infrared sensor 22 and the second infrared sensor 12 can be combined to form a group of infrared induction photoelectric switches; when the upper and lower cases are in a closed state, the first infrared sensor 22 faces the second infrared sensor 12 and maintains a gap which can accommodate the projection disk to rotate and move in the gap without contact.
Referring to fig. 4, the condenser lens group 25 includes a lens group housing and a convex lens fixed in the lens group housing, and the condenser lens group is fixed on the LED light source to converge and enhance the light source.
Referring to fig. 6, the projection disk mounting bracket 26 includes a lower concave mounting disk portion 261, a projection through hole 262, a rotating shaft buckling hole 263 and a Y-shaped abutting piece 264; the rotating shaft buckling hole 263 is used for being butted and buckled with the sliding buckle type rotating shaft 414 of the projection disk 4, so that the projection disk 4 can be rotatably and movably connected with the projection disk mounting rack 26; the Y-shaped abutting piece 264 is formed by hollowing out on the mounting surface of the projection disk mounting rack 26, comprises 2 pieces, has certain movable elasticity capable of deviating, and has a semi-arc-shaped opening, and the Y-shaped opening is aligned with each other to form a circular rotating shaft buckling hole 263; the projection disk mounting bracket 26 is connected with the fixing bracket 21 through a buckle or a screw.
Referring to fig. 7, the projection disk 4 includes a projection wheel 41, a projection lamp sheet 42 and a pressing disk 43; the projection wheel disc 41 comprises an outer gear ring 411, a positioning convex piece 412, a projection window 400, a sensing through hole 413 and a sliding buckle type rotating shaft 414, wherein the outer gear ring 411 is used for being butted and meshed with the driving gear 230, the positioning convex piece 412 is used for being butted with a positioning hole 401, the sensing through hole 413 is used for penetrating infrared light, so that the infrared light emitted by an infrared light emitter can be received by an infrared light receiver through the sensing through hole 413, and the sliding buckle type rotating shaft 414 is used for being buckled and butted with the rotating shaft buckling hole 263; the projection lamp sheet 42 is provided with a positioning hole 401 and a projection pattern printing part 421; the pressing disc 43 comprises a rotating shaft penetrating hole 431, a projection window 400 and a positioning hole 401, and the pressing disc 43 is buckled with the projection wheel disc 41 through a buckle, so that the projection lamp sheet 42 is fixedly installed between the pressing disc 43 and the projection wheel disc 41.
Referring to fig. 8, the focusing lens group 11 includes a focusing lens movable assembly 111, a lens fixing base 112 and a lens fixing ring 113; the focusing lens movable assembly 111 comprises a focusing rotating ring 1111 and a lens suite, wherein the focusing rotating ring 1111 is provided with internal threads, the lens suite comprises a convex lens 1112, an embedded fixing suite 1113 and an outer ring suite 1114, the outer ring suite 1114 is provided with external threads and a U-shaped concave position, the external threads are in butt joint and meshing with the internal threads of the focusing rotating ring 1111, and the focusing rotating ring 1111 and the lens suite can relatively rotate through thread meshing; the fixed ring 113 of camera lens including be provided with fixed traveller, fixed traveller be used for with U type concave position butt joint screens, when rotating the focusing and rotating the circle, the camera lens external member only can slide from top to bottom along fixed traveller to realize the focusing function.
The centers of the focusing lens group 11, the projection through hole 262, the condenser lens group 25 and the LED light source 24 are all located on the same projection optical axis.
The main control circuit board comprises an MCU, a light adjusting module, a motor control module and an infrared remote control module; the MCU processes the electric signals transmitted by the infrared sensor, defines, judges and sends out signals for stopping the rotation of the motor 23, and the motor control module controls the starting or stopping of the motor 23, so that the projection disk 4 is driven to rotate and stop, and the switching of projection patterns is realized.
The above description is for the purpose of illustration, and it is intended to cover by those skilled in the art all such modifications, equivalents, and alternatives as fall within the spirit and scope of the present invention.
Claims (10)
1. A story projector capable of changing films in an opening and closing way is characterized by comprising an upper shell, a lower shell and a hinge device which can be movably connected with the upper shell and the lower shell in a rotating way; the hinge device connects the upper shell and the lower shell to form an openable accommodating space, and a fixed support, a first infrared sensor, a motor, an LED light source, a condenser lens group, a projection disc mounting frame, a projection disc, a lithium battery and a main control circuit board are arranged in the accommodating space; the fixed support is fixedly arranged on the lower shell, and the first infrared sensor, the motor, the LED light source, the condenser lens group and the projection disc mounting rack are all connected with the fixed support; the projection disk is rotatably and movably connected with the projection disk mounting frame; the lithium battery and the main control circuit board are both fixedly connected with the lower shell; the upper shell comprises a focusing lens mounting hole, a focusing lens group and a second infrared sensor mounted on the inner surface of the upper shell.
2. A story projector with an open-close film changer as claimed in claim 1, wherein the motor comprises a driving gear fixed on the motor shaft core.
3. A story projector with an openable film changer according to claim 1, wherein the first infrared sensor is an infrared light emitter or an infrared light receiver; when the first infrared sensor is an infrared light emitter, the second infrared sensor is an infrared light receiver; when the first infrared sensor is an infrared light receiver, the second infrared sensor is an infrared light emitter; the first infrared sensor and the second infrared sensor can be combined to form a group of infrared induction photoelectric switches; when the upper shell and the lower shell are in a closed state, the first infrared sensor is over against the second infrared sensor and keeps a certain gap, and the gap can accommodate the projection disc to rotate and movably pass through the gap in a non-contact manner.
4. A story projector with an openable film changer as claimed in claim 1, wherein the condenser lens assembly comprises a lens assembly housing and a convex lens fixed in the lens assembly housing, and the condenser lens assembly is fixed on the LED light source to increase the convergence of the light source.
5. The story projector of claim 1, wherein the projection tray mounting frame comprises a lower concave tray mounting part, a projection through hole, a rotating shaft buckling hole and a Y-shaped supporting part; the rotating shaft buckling hole is used for being butted and buckled with a sliding buckle type rotating shaft of the projection disc, so that the projection disc can be rotatably and movably connected with the projection disc mounting frame; the Y-shaped abutting piece is formed by hollowing out the mounting surface of the projection disk mounting rack, comprises 2 pieces of elastic material and has certain movable elasticity capable of deviating, and the Y-shaped opening is in a semi-arc shape and is aligned with each other to form a round rotating shaft buckling hole; the projection disc mounting rack is connected with the fixed support through a buckle or a screw.
6. A story projector with an openable film changer as claimed in claim 1, wherein the projection disc includes a projection wheel disc, a projection lamp sheet and a press disc; the projection wheel disc is provided with an outer gear ring, a positioning convex piece, a projection window, a sensing through hole and a sliding buckle type rotating shaft; the projection lamp sheet is provided with a positioning hole and a projection pattern printing part; the pressing disc is provided with a rotating shaft penetrating hole, a projection window and a positioning hole; the outer gear ring is used for being meshed with the driving gear in a butt joint mode, the positioning convex part is used for being in butt joint with the positioning hole, the sensing through hole is used for allowing infrared light to penetrate through, the infrared light emitted by the infrared light emitter can be received by the infrared light receiver through the sensing through hole, and the sliding buckle type rotating shaft is used for being in buckling butt joint with the rotating shaft buckling hole; the pressing disc is buckled with the projection wheel disc through a buckle, so that the projection lamp sheet is fixedly arranged between the pressing disc and the projection wheel disc.
7. A story projector with an openable and closable film-changing function as claimed in claim 1, wherein the focus lens group includes a focus lens moving unit, a lens holder and a lens holder ring; the focusing lens movable assembly comprises a focusing rotating ring and a lens external member, wherein the focusing rotating ring is provided with internal threads, the lens external member comprises a convex lens, an embedded fixing external member and an outer ring external member, the outer ring external member is provided with external threads and a U-shaped concave position, the external threads are butted and meshed with the internal threads of the focusing rotating ring, and the focusing rotating ring and the lens external member can relatively rotate through thread meshing; the lens fixing ring comprises a fixing sliding column, the fixing sliding column is used for being in butt joint with the U-shaped concave position to clamp positions, and when the focusing rotating ring is rotated, the lens kit can only slide up and down along the fixing sliding column, so that the focusing function is realized.
8. A story projector with an openable film changer as claimed in claim 1, wherein the focusing lens set, the projection through hole, the condensing lens set and the LED light source are all centered on the same projection optical axis.
9. A story projector with an openable film changer as claimed in claim 1, wherein the main control circuit board comprises an MCU, a light adjusting module, a motor control module and an infrared remote control module; the MCU processes the electric signals transmitted by the infrared sensor, defines, judges and sends out signals for stopping the rotation of the motor, and the motor control module controls the starting or stopping of the motor, so that the projection disk is driven to rotate and stop, and the switching of projection patterns is realized.
10. A story projector with an openable and closable film changer as claimed in claim 1, wherein one of the upper or lower casings is provided with a power supply interface hole and a key hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023350780.2U CN214098068U (en) | 2020-12-31 | 2020-12-31 | Story projector capable of changing film in open-close mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023350780.2U CN214098068U (en) | 2020-12-31 | 2020-12-31 | Story projector capable of changing film in open-close mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214098068U true CN214098068U (en) | 2021-08-31 |
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ID=77437137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023350780.2U Active CN214098068U (en) | 2020-12-31 | 2020-12-31 | Story projector capable of changing film in open-close mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214098068U (en) |
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2020
- 2020-12-31 CN CN202023350780.2U patent/CN214098068U/en active Active
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