Projection assembly

Abstract

The utility model discloses a projection assembly which comprises a lamp body. The fixing frame is arranged around the lamp body and comprises an installation hole penetrating through the upper surface and the lower surface of the fixing frame. The screen sheet comprises a first end part and a second end part which are connected with each other, the screen sheet forms a hollow conical structure, the screen sheet of the conical structure is mounted in the mounting hole, and the screen sheet comprises a transparent film, a projection area arranged on the transparent film and a shading area arranged around the projection area; the light emitted by the lamp body is projected to the projection sheet, the projection sheet of the conical structure projects stray light downwards, the definition of the projection effect is improved, and in addition, the projection sheet can be prevented from being installed reversely.

Description

[Technical field]

[0001] The utility model relates to the technical field of projection components, in particular to a projection component capable of reducing stray light. [Background technology]

[0002] An existing projection assembly includes a base, a light source and a turntable mounted on the base, a projection assembly mounted on the turntable, and an upper cover covering the projection assembly. The projection assembly includes a frame and a slide mounted on the frame, the frame has mounting holes extending through the upper and lower surfaces thereof, and the slide is mounted in the mounting holes.

[0003] Since the slides are spliced ​​together to form a cylindrical structure of equal width, they are easy to fall out of the installation hole, making the process of replacing and installing the slides extremely cumbersome, causing difficulties for users, and easily causing the film to be installed upside down. In addition, the slides cannot fit the inner wall of the frame, reducing the projection clarity. At the same time, the cylindrical structure of the slides of equal width will cause the stray light reflected by itself to be projected upward.

[0004] Therefore, a new projection component needs to be designed to overcome the above problems. [Utility Model Content]

[0005] In view of the problems faced by the background technology, the utility model provides a projection component with a conical projection sheet to reduce stray light.

[0006] In order to achieve the above purpose, the utility model adopts the following technical means:

[0007] A projection assembly comprises: a lamp body; a fixing frame, which is arranged around the lamp body and comprises mounting holes penetrating the upper and lower surfaces thereof; a projection sheet, which comprises a first end portion and a second end portion connected to each other, wherein the projection sheet forms a hollow conical structure, and the projection sheet of the conical structure is mounted in the mounting hole, and the projection sheet comprises a transparent film, a projection area arranged on the transparent film, and a light shielding area arranged around the projection area, and the light emitted by the lamp body is projected onto the projection sheet, and the projection sheet of the conical structure projects stray light downward.

[0008] Furthermore, the first end surface of the first end portion and / or the second end surface of the second end portion are arranged to be inclined toward the central axis direction of the slide.

[0009] Furthermore, the first end portion includes at least one plug-in portion, and the second end portion includes at least one locking portion, and the plug-in portion is buckled with the locking portion.

[0010] Furthermore, the first end portion includes a base and at least two plug-in portions extending from the base, the second end portion includes a mating portion and at least two locking portions arranged relative to the mating portion and away from the plug-in portion, and the base and the mating portion are fitted with each other.

[0011] Furthermore, the first end portion includes a base and the plug-in portion extending from the base, the width of the plug-in portion is less than 1 / 2 of the width of the base, the locking portion is configured as a slot passing through the second end portion, the width of the slot is less than 1 / 2 of the width of the second end portion, the plug-in portion is inserted into the slot, and the plug-in portion protrudes into the inner side of the tapered slide or is exposed on the outer side of the slide.

[0012] Furthermore, the slide film includes an upper end surface and a lower end surface that are arranged opposite to each other in the up and down directions, the upper end surface and the lower end surface are both connected to the first end portion and the second end portion, and the contour surface of the upper end surface and / or the lower end surface is a curved surface.

[0013] Furthermore, the middle part of the upper end surface and / or the lower end surface is bent downward, and the two side parts of the upper end surface and / or the lower end surface are gradually bent upward from the middle, and the slide is in a fan-shaped structure in the unfolded state.

[0014] Furthermore, the tapered projection sheet is mounted upwardly in the mounting hole, and the fit between the projection sheet and the inner wall of the mounting hole is changed from a loose fit to a tight fit, and the projection sheet is attached to the inner wall of the mounting hole.

[0015] Furthermore, the projection assembly includes a base and a projection lamp sheet located above the projection sheet, the base includes a plurality of fixing parts protruding upward and at least one positioning part, the lamp body is predetermined to be located at the positioning part, the fixing part is aligned with the fixing hole of the lamp body, and the lamp body is fixed to the plurality of the fixing parts.

[0016] Further, the projection assembly includes a turntable installed on the base, the fixed frame is installed on the turntable, the turntable includes a downwardly arranged groove, the groove is arranged around the lamp body, and the fixed frame is arranged in the groove to block the light from being exposed; or the turntable includes at least one shading portion extending upward, the shading portion is arranged around the fixed frame to block the light from being exposed.

[0017] Compared with the prior art, the projection assembly of the utility model has the following beneficial effects:

[0018] A fixing frame is arranged around the lamp body and includes a mounting hole that passes through the upper and lower surfaces thereof; a projection sheet includes a first end and a second end that are connected to each other, the projection sheet forms a hollow conical structure, the projection sheet with a conical structure is installed in the mounting hole, the projection sheet includes a transparent film, a main projection area arranged on the transparent film, and an auxiliary projection area arranged around the main projection area, the light emitted by the lamp body is projected onto the projection sheet, the projection sheet with a conical structure projects stray light downward, reduces stray light projection upward, and affects the clarity of the projection, in addition, the projection sheet can be prevented from being reversely installed, the projection sheet fits the inner wall of the mounting hole, and the projection effect is clearer.

Brief Description of the Drawings

[0019] Figure 1 A three-dimensional diagram of the projection assembly of the utility model;

[0020] Figure 2 for Figure 1 3D exploded view of

[0021] Figure 3 for Figure 2 A schematic diagram of the unfolded state of the slide in the middle;

[0022] Figure 4 for Figure 3 Diagram of the rolled-up slide.

[0023] Description of the accompanying drawings of the specific embodiments:

[0024] Projection assembly 100 Base 1 Storage tank 11 Fixed part 12 Positioning unit 13 Turntable 2 Sink 21 Limiting slot 22 Buckle 23 Lamp body 3 Projection module 4 Fixed frame 41 Main body 411 Hook 412 Mounting hole 413 Slide 42 First end portion 421 Base 4211 Plug-in section 4212 Second end 422 Matching part 4221 Locking part 4222 Upper end surface 423 Lower end surface 424 Projection slide 43 Center axis P [Specific implementation method]

[0025] In order to facilitate a better understanding of the purpose, structure, characteristics and functions of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figures 1 to 4 As shown, the projection assembly 100 of the present invention comprises a base 1 , a lamp body 3 installed on the base 1 , a turntable 2 , and a projection module 4 installed on the turntable 2 .

[0027] like Figure 1 and Figure 2As shown, the base 1 includes a receiving groove 11 formed by being recessed downward from the top surface thereof, and a plurality of fixing portions 12 and at least one positioning portion 13 protruding into the receiving groove 11, wherein the positioning portion 13 is arranged near one of the fixing portions 12. In this embodiment, the two positioning portions 13 are arranged higher than the fixing portions 12 in the vertical direction. The turntable 2 is accommodated in the receiving groove 11. The lamp body 3 is exposed upward from the turntable 2. The turntable 2 includes a downwardly arranged sinking groove 21 and a plurality of limiting grooves 22, wherein the limiting grooves 22 are arranged in communication with the sinking groove 21 in the vertical direction, that is, the limiting grooves 22 are formed by being recessed downward from the bottom wall of the sinking groove 21. The limiting grooves 22 penetrate the turntable 2 downward and are arranged in communication with the receiving groove 11. The turntable 2 also includes a buckling portion 23 connected to the side wall of the limiting groove 22. In this embodiment, the buckling portion 23 is formed on the bottom wall of the sinking groove 21, that is, the buckling portion 23 is the top wall of the turntable 2. In other embodiments, the turntable 2 includes at least one shading portion extending upward, and preferably two shading portions are provided on both sides of the limiting groove 22. A circle formed by taking the center of the turntable 2 as the center and the distance from the shading portion to the circle as the radius passes through the limiting groove 22. Alternatively, the center of the arc formed by the slot and the center of the arc formed by the shading portion are located on the same axis. The lamp body 3 is predetermined to be located at the positioning portion 13, the fixing portion 12 is aligned with the fixing hole of the lamp body 3, and the lamp body 3 is fixed to a plurality of the fixing portions 12.

[0028] like Figure 2 , Figure 3 and Figure 4As shown, the projection module 4 includes a fixing frame 41, a projection sheet 42 and a projection lamp sheet 43 arranged on the fixing frame 41. The fixing frame 41 includes a main body 411, a plurality of hooks 412 extending downward from the main body 411, and a mounting hole 413 penetrating the main body 411 from top to bottom. The hook 412 includes an extension portion connected to the main body 411 and a hook portion extending from the extension portion. The main body 411 is covered on the outside of the lamp body 3. The shading portion is arranged around the outer wall of the main body 411 to prevent light leakage from the lower end of the main body 411. The shading portion is an arc structure located on both sides of the limiting groove 22, and the shading portion at least partially contacts the outer wall of the main body 411. It can also be said that the circumference formed by the shading portion and the circumference of the main body 411 form a concentric circle. The width of the mounting hole 413 gradually decreases from bottom to top, that is, the mounting hole 413 forms a cone-shaped structure. The main body 411 is arranged in the sink 21, that is, the two are aligned up and down. The hook protrudes into the limit groove 22 and is located below the buckle 23 to prevent the projection module 4 from detaching from the turntable 2. The projection film 42 forms a fan-shaped structure in the unfolded state, and is installed in the mounting hole 413 to form a hollow conical structure, and its taper is the same as the taper of the inner wall of the mounting hole 413. The projection film 42 is installed upward in the mounting hole 413, and the fit between the projection film 42 and the inner wall of the mounting hole 413 is changed from loose fit to tight fit. The projection film 42 is attached to the inner wall of the mounting hole 413 to prevent the projection film 42 from automatically falling off the fixing frame 41. The projection film 42 includes a transparent film, a main projection area arranged on the transparent film, and an auxiliary projection area arranged around the main projection area. The transparent film serves as the bottom film of the projection film 42, and the main projection area includes a color pattern and / or a transparent pattern. The slide film 42 includes a first end 421 and a second end 422 that can be connected or detached, and an upper end surface 423 and a lower end surface 424 that connect the first end 421 and the second end 422. The first end 421 includes a base 4211 and at least one plug-in portion 4212 extending from the base 4211. The second end 422 includes a matching portion 4221 and at least one locking portion 4222 that is arranged away from the plug-in portion 4212 relative to the matching portion 4221. In this embodiment, the two plug-in portions 4212 are arranged at intervals in the vertical direction, and the two plug-in portions 4212 are buckled with the two locking portions 4222 in a one-to-one correspondence. The base 4211 and the matching portion 4221 are stacked up and down, and the base 4211 is located above the matching portion 4221, and the overlapping area of ​​the base 4211 and the matching portion 4221 gradually decreases from bottom to top.The width of the plug-in portion 4212 is less than 1 / 2 of the width of the base portion 4211. The locking portion 4222 is configured as a slot penetrating the second end portion 422. The width of the slot is less than 1 / 2 of the width of the second end portion 422. The plug-in portion 4212 is inserted into the slot, and the plug-in portion 4212 protrudes into the inner side of the tapered projection film 42 or is exposed on the outer side of the projection film 42. The distances between the two slots and the edge of the matching portion 4221 are the same, or the distance between one of the slots and the edge of the matching portion 4221 is greater than the distance between the other slot and the edge of the matching portion 4221. The first end face of the first end portion 421 and / or the second end face of the second end portion 422 are inclined toward the central axis P of the tapered projection film 42. The contour surface of the upper end face 423 and / or the lower end face 424 is a curved surface. In this embodiment, the middle part of the upper end surface 423 and / or the lower end surface 424 is bent downward, and the two side parts of the upper end surface 423 and / or the lower end surface 424 are gradually bent upward from the middle, so that when the projection sheet 42 is rolled into a conical structure, the upper end surface 423 and the lower end surface 424 are approximately at the same height, which is convenient for adapting to the fixing frame 41. The projection light sheet 43 is installed on the fixing frame 41 and is located above the lamp body 3. The projection light sheet 43 covers the upper end opening of the conical projection sheet 42. When the light emitted by the lamp body 3 is projected onto the inner surface of the projection sheet 42, the projection sheet 42 will reflect some stray light. Since the projection sheet 42 forms a conical structure, the projection sheet 42 projects the reflected stray light downward, reducing the stray light projected upward onto the projection light sheet 43, thereby reducing the influence of the stray light on the projection effect.

[0029] In summary, the projection assembly of the utility model has the following beneficial effects:

[0030] (1) A fixing frame 41 is arranged around the lamp body 3 and includes a mounting hole 413 that passes through the upper and lower surfaces thereof; a projection sheet 42 includes a first end portion 421 and a second end portion 422 that are connected to each other, and the projection sheet 42 forms a hollow conical structure. The projection sheet 42 of the conical structure is installed in the mounting hole 413. The projection sheet 42 includes a transparent film, a main projection area arranged on the transparent film, and an auxiliary projection area arranged around the main projection area. The light emitted by the lamp body 3 is projected onto the projection sheet 42. The projection sheet 42 of the conical structure projects stray light downward, thereby reducing stray light from being projected upward and affecting the clarity of the projection. In addition, the projection sheet 42 can be prevented from being reversely installed. The projection sheet 42 fits the inner wall of the mounting hole 413, and the projection effect is clearer.

[0031] The above detailed description is only an explanation of the preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Therefore, all equivalent technical changes made by using the description and illustrations of this creation are included in the patent scope of this creation.

Claims

1. A projection assembly, characterized in that: include: Lamp body; A fixing frame, arranged around the lamp body and comprising mounting holes penetrating the upper and lower surfaces thereof; The projection sheet comprises a first end and a second end connected to each other, the projection sheet forms a hollow conical structure, the projection sheet with the conical structure is installed in the installation hole, the projection sheet comprises a transparent film, a projection area arranged on the transparent film, and a shading area arranged around the projection area, the light emitted by the lamp body is projected onto the projection sheet, and the projection sheet with the conical structure projects stray light downward.

2. The projection assembly according to claim 1, characterized in that: The first end surface of the first end portion and / or the second end surface of the second end portion are arranged to be inclined toward the central axis direction of the slide.

3. The projection assembly as claimed in claim 2, characterized in that: The first end portion includes at least one plug-in portion, and the second end portion includes at least one locking portion, and the plug-in portion is buckled with the locking portion.

4. The projection assembly as claimed in claim 3, characterized in that: The first end portion includes a base portion and at least two plug-in portions extending from the base portion, and the second end portion includes a mating portion and at least two locking portions arranged relative to the mating portion and away from the plug-in portion, and the base portion and the mating portion fit each other.

5. The projection assembly as claimed in claim 3, characterized in that: The first end portion includes a base and the plug-in portion extending from the base, the width of the plug-in portion is less than 1 / 2 of the width of the base, the locking portion is configured as a slot passing through the second end portion, the width of the slot is less than 1 / 2 of the width of the second end portion, the plug-in portion is inserted into the slot, and the plug-in portion protrudes into the inner side of the tapered projection film or is exposed on the outer side of the projection film.

6. The projection assembly according to any one of claims 1 to 5, characterized in that: The slide film includes an upper end surface and a lower end surface that are arranged opposite to each other in the up-down direction, the upper end surface and the lower end surface are both connected to the first end portion and the second end portion, and the contour surface of the upper end surface and / or the lower end surface is a curved surface.

7. The projection assembly according to claim 6, characterized in that: The middle part of the upper end surface and / or the lower end surface is bent downward, and the two side parts of the upper end surface and / or the lower end surface are gradually bent upward from the middle, and the slide sheet is a fan-shaped structure in an unfolded state.

8. The projection assembly according to any one of claims 1 to 5, characterized in that: The tapered projection sheet is upwardly mounted on the mounting hole, and the fit between the projection sheet and the inner wall of the mounting hole is changed from a loose fit to a tight fit, and the projection sheet is attached to the inner wall of the mounting hole.

9. The projection assembly according to any one of claims 1 to 5, characterized in that: The projection assembly includes a base and a projection lamp sheet located above the projection sheet, the base includes a plurality of fixing parts protruding upward and at least one positioning part, the lamp body is predetermined to be located at the positioning part, the fixing part is aligned with the fixing hole of the lamp body, and the lamp body is fixed to the plurality of the fixing parts.

10. The projection assembly according to claim 9, characterized in that: The projection assembly includes a turntable installed on a base, the fixing frame is installed on the turntable, the turntable includes a downwardly arranged groove, the groove is arranged around the lamp body, and the fixing frame is arranged on the groove to block the light from being exposed; or the turntable includes at least one light shielding portion extending upward, the light shielding portion is arranged around the fixing frame to block the light from being exposed.

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