A projection device

Abstract

The invention discloses a projection device, comprising: a base, comprising a slot penetrating outward; a light source assembly, mounted on the base; a first projection assembly, movably pluggable in the slot and located above the light source assembly, the first projection assembly comprising a first projection sheet; a second projection assembly, movably connected to the base and protruding into the slot, the second projection assembly comprising a second projection sheet; when the first projection assembly is inserted forward into the slot, the first projection assembly pushes the second projection assembly from a first position to a second position, at which time the second projection assembly is located above the first projection assembly, a motor drives the first projection assembly to rotate, and as the first projection assembly rotates, the second projection assembly blocks different positions of the first projection assembly, thereby continuously changing the projection pattern presented by the first projection assembly, enhancing the dynamic sense of the projection picture on the basis of rotation, changing the light and dark position of the projection, or changing the projection picture.

Description

[Technical field]

[0001] The present invention relates to the technical field of projection devices, and in particular to a projection device with variable projection effects. [Background technology]

[0002] An existing projection device includes a housing, a light source assembly fixed to the housing, a tray component located above the light source assembly, a focus lens located above the tray component, and a motor driving the tray component. The housing includes a slot penetrating outward, the tray component includes a tray and a projection disc installed on the tray, the tray can be movably inserted and removed from the slot, and the motor drives the projection disc.

[0003] Since the above-mentioned projection device only forms the effect of a single projection pattern that rotates continuously, but cannot change the content in the projection pattern, the projection effect is single and cannot meet the needs of users. [Summary of the invention]

[0004] In view of the problems faced by the background technology, the present invention provides a projection device with a gradually changing projection pattern.

[0005] To achieve the above purpose, the present invention adopts the following technical means:

[0006] A projection device comprises: a base, comprising a slot extending outward; a light source assembly, mounted on the base; a first projection assembly, movably pluggable in the slot and located above the light source assembly, the first projection assembly comprising a first projection sheet; a second projection assembly, movably connected to the base and protruding into the slot, the second projection assembly comprising a second projection sheet; when the first projection assembly is inserted forward into the slot, the first projection assembly pushes the second projection assembly from a first position to a second position, at which time the second projection assembly is located above the first projection assembly, a motor drives the first projection assembly to rotate, and as the first projection assembly rotates, the second projection assembly blocks different positions of the first projection assembly, thereby continuously changing the projection pattern presented by the first projection assembly.

[0007] Furthermore, the first projection assembly includes a base and an active portion protruding upward relative to the base, the first projection sheet is installed on the base, and the second projection assembly includes a driven portion arranged toward the first projection assembly, and the active portion drives the driven portion to move.

[0008] Furthermore, the active part pushes the driven part to move forward, and when the second projection assembly moves from the first position to the second position, the contact area between the active part and the driven part gradually increases from small to large or the contact area between the active part and the driven part remains unchanged.

[0009] Furthermore, the base includes a projection opening extending upward, and the projection opening is connected to the slot in vertical communication. When the second projection assembly moves from the first position to the second position, the area of ​​the projection opening blocked by the second projection sheet increases continuously.

[0010] Further, when the second projection assembly is located at the first position, the second projection assembly and the projection port are staggered in the up and down directions.

[0011] Furthermore, the second projection assembly is pivotally connected to the base, and when the first projection assembly is inserted into the slot, the second projection assembly swings from back to front at an angle less than 90°.

[0012] Furthermore, the second projection assembly includes a main body, the second projection sheet installed on the main body, a pivot extending from the main body, and an elastic member sleeved on the pivot, the pivot is installed on the base, and the elastic member drives the second projection sheet to reset.

[0013] Further, the base includes a first seat and a second seat forming the slot, the second seat includes a pivot groove connected to the slot up and down, the pivot protrudes into the pivot groove, the elastic member includes a base and a first end and a second end extending from the base in opposite directions, the first end and the second end are subjected to opposite forces, the first end is clamped upwardly to the first seat, and the second end is clamped to the main body.

[0014] Furthermore, the first end protrudes upward into the slot of the first seat, the slot is connected to the pivoting slot, and the second end protrudes downward into the concave position of the main body to drive the second slide sheet to move.

[0015] Furthermore, the base includes a light-transmitting hole penetrating vertically, the light-transmitting hole is connected to the slot, and when the first projection assembly is in the first position, the projections of the first projection assembly and the light-transmitting hole in the vertical direction do not overlap.

[0016] Compared with the prior art, the projection device of the present invention has the following beneficial effects:

[0017] The first projection component can be movably inserted and pulled out of the slot of the base and is located above the light source component. The first projection component includes a first projection sheet; the second projection component is movably connected to the base and protrudes into the slot, and the second projection component includes a second projection sheet; when the first projection component is inserted forward into the slot, the first projection component pushes the second projection component from the first position to the second position. At this time, the second projection component is located above the first projection component, and a motor drives the first projection component to rotate. As the first projection component rotates, the second projection component blocks different positions of the first projection component, thereby continuously changing the projection pattern presented by the first projection component, enhancing the dynamic sense of the projection picture of the first projection sheet on the basis of rotation, changing the light and dark position of the projection or changing the projection picture. In addition, the first projection component can be replaced with a structure that does not trigger the movement of the second projection component, so as to realize the sharing of multiple projection effect structures and improve product utilization.

Brief Description of the Drawings

[0018] Figure 1 is a three-dimensional diagram of the projection device of the present invention;

[0019] Figure 2 for Figure 1 3D exploded view of

[0020] Figure 3 for Figure 2 A three-dimensional diagram of the middle base, the light source assembly, the first projection assembly, the second projection assembly and the motor;

[0021] Figure 4 for Figure 3 3D exploded view of

[0022] Figure 5 for Figure 3 A three-dimensional exploded view after the first projection assembly is pulled out;

[0023] Figure 6 for Figure 5 A three-dimensional exploded view of the second projection device;

[0024] Figure 7 for Figure 3 A top view of

[0025] Figure 8 for Figure 7 Sectional view taken along line AA.

[0026] Description of the accompanying drawings of the specific embodiments:

[0027] Projection device 100 Shell 1 Upper shell 11 Projection hole 111 Lower shell 12 Accommodation chamber 13 Socket 14 Base 2 The first 21 Groove 211 Light hole 212 Mounting hole 213 Fixing portion 214 Second Block 22 Projection port 221 Fixed column 222 Pivot slot 223 Card slot 224 Slot 23 Light source component 3 First projection component 4 Insert 41 Storage tank 411 Projection disc 42 Base 421 Slide 1 422 Active Department 423 Second projection component 5 Main body 51 Concave position 511 Driven part 52 Slide 2 53 Pivot 54 Axis hole 541 Step 542 Elastic member 55 Base 551 First end 532 The second end 533 Motor 6 Projection lens 7 [Specific implementation method]

[0028] In order to facilitate a better understanding of the purpose, structure, characteristics and effects of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.

[0029] like Figures 1 to 8 As shown, the projection device 100 of the present invention includes a housing 1, a base 2 installed on the housing 1, a light source assembly 3 installed on the base 2, a first projection assembly 4, a second projection assembly 5, a motor 6 and a projection lens 7.

[0030] like Figure 1 and Figure 2 As shown, the housing 1 includes an upper shell 11 and a lower shell 12 fixed to each other, a receiving cavity 13 formed by the upper shell 11 and the lower shell 12 , and a socket 14 communicating with the receiving cavity 13 .

[0031] like Figure 2 , Figure 4 and Figure 5 As shown, the base 2 is accommodated in the accommodating cavity 13. The base 2 includes a first seat 21, a second seat 22 fixed to each other, and a slot 23 formed by the first seat 21 and the second seat 22. The first seat 21 includes a groove 211 formed downward from its top surface, a light-transmitting hole 212 and a mounting hole 213 that penetrate upward through the bottom wall of the groove 211, and a plurality of fixing parts 214 arranged around the groove 211. The mounting hole 213 is located in front of the light-transmitting hole 212. The second seat 22 includes a projection port 221 penetrating from top to bottom, a plurality of fixing columns 222 arranged around the projection port 221, a pivoting slot 223 penetrating upward, and a card slot 224. The card slot 224 is connected to the pivoting slot 223 in the upper direction. The light-transmitting hole 212 is aligned with the projection port 221 in the upper and lower directions. The slot 23 is aligned with the socket 14 in the front-to-back direction. The projection port 221 is connected to the slot 23 in the upper and lower directions. The plurality of fixing posts 222 are fixed to the fixing portion 214 in a one-to-one correspondence. The light source assembly 3 is located directly below the light-transmitting hole 212, and the light-transmitting hole 212 is vertically connected to the slot 23. The pivoting slot 223 is vertically connected to the slot 23.

[0032] like Figure 4 , Figure 5 and Figure 8As shown, the first projection assembly 4 can be movably inserted and removed from the slot 23, and protrudes backward from the socket 14. The first projection assembly 4 includes an insertion plate 41 and a projection plate 42 installed on the insertion plate 41. The insertion plate 41 includes a receiving groove 411 formed by being recessed downward from its top surface, and the projection plate 42 is installed in the receiving groove 411. The projection plate 42 includes a base 421, a first projection sheet 422 installed on the base 421, and an active portion 423 extending upward from the base 421, that is, the active portion 423 is arranged higher than the base 421. The active portion 423 is located in front of the first projection sheet 422. In this embodiment, the active portion 423 is arranged around the first projection sheet 422. The motor 6 is installed in the installation hole 213, and is provided with a gear protruding into the slot 23, and the gear cooperates with the gear ring of the projection plate 42.

[0033] like Figure 4 , Figure 5 , Figure 6 and Figure 8As shown, the second projection assembly 5 is connected to the base 2, that is, the second projection assembly 5. The second projection assembly 5 is installed on the second seat 22 and is located above the first projection assembly 4. In this embodiment, the second projection assembly 5 is pivotally connected to the second seat 22. The second projection assembly 5 includes a main body 51, a driven part 52 extending downward from the main body 51, a second projection sheet 53 installed on the main body 51, a pivot 54 extending upward from the main body 51, and an elastic member 55 sleeved on the pivot 54. That is to say, the driven part 52 is arranged downward toward the second projection assembly 5. The base 2 is provided with a clearance groove corresponding to the main body 51, that is, the main body 51 is at least partially exposed to the outside of the base 2. The main body 51 includes a concave position 511 formed by being recessed downward from its top surface, and the driven part 52 is located in front of the second projection sheet 53. The projection lens 7 is located above the second projection sheet 53 and is exposed upward to the projection port 221. The patterns of the first projection sheet 422 and the second projection sheet 53 are different. The pivot 54 includes an axial hole 541 penetrating upward and a step portion 542 arranged around the axial hole 541. The pivot 54 protrudes into the pivot slot 223 and is positioned in the axial hole 541 by a screw. The nut of the screw limits the downward movement of the pivot 54. The pivot slot 223 is provided with a first limiting portion for limiting the upward movement of the first step portion 542 and a second step portion for limiting the upward movement of the elastic member 55. The elastic member 55 includes a base 551, a first end 532 and a second end 533 extending from the base 551 in opposite directions, and the first end 532 and the second end 533 are subjected to opposite forces. The base 551 is sleeved on the pivot 54, and the main body 51 limits the downward movement of the base 551. The first end 532 is clamped upwardly to the clamping slot 224, and the second end 533 is clamped downwardly to the concave position 511, and drives the second projection sheet 53 to move and reset. During the process of inserting the first projection assembly 4 forward into the slot 23, the active part 423 first contacts the driven part 52, and the active part 423 pushes the driven part 52 forward to move the second projection assembly 5 from the first position to the second position. The first position of the second projection assembly 5 is the state when the first projection assembly 4 exits the slot 23, and the second position of the second projection assembly 5 is the state when the first projection assembly 4 is inserted into the slot 23. The swing angle of the second projection assembly 5 from back to front is less than 90°, and the contact area between the active part 423 and the driven part 52 gradually increases from small to large, or the contact area between the active part 423 and the driven part 52 remains unchanged. When the first projection assembly 4 is in the first position, the projections of the first projection assembly 4 and the light-transmitting hole 212 in the up and down directions do not overlap.When the second projection assembly 5 moves from the first position to the second position, the area of ​​the projection opening 221 blocked by the second projection sheet 53 increases continuously until the first projection sheet 422 and the second projection sheet 53 overlap each other. That is, when the first projection assembly 4 is in the second position, the central axis of the first projection sheet 422 and the second projection sheet 53 both overlap with the central axis of the light-transmitting hole 212. The second projection assembly 5 is located above the first projection assembly 4, and the motor 6 drives the first projection assembly 4 to rotate. Since the second projection sheet 53 is provided with an irregular black light-shielding portion, as the first projection assembly 4 rotates, the second projection assembly 5 blocks different positions of the first projection assembly 4, thereby continuously changing the projection pattern presented by the first projection assembly 4. In other embodiments, the first projection assembly 4 and the second projection assembly 5 cooperate with each other to project a gradual moon projection effect. The first projection film 422 is provided with a light-transmitting area of ​​a full moon, and the second projection film 53 is provided with multiple shading patterns, which include multiple crescent moons of different structures and at least one round moon, all of which are arranged along the moving trajectory of the full moon pattern on the first projection film 422. During the rotation of the first projection film 422, the shading pattern on the second projection film 53 gradually blocks the pattern on the first projection film 422 until the full moon pattern on the first projection film 422 coincides with the center of the shading pattern of the full moon on the second projection film 53, and a lunar eclipse effect is projected.

[0034] In summary, the projection device of the present invention has the following beneficial effects:

[0035] (1) The first projection assembly 4 can be movably inserted into the slot 23 of the base 2 and is located above the light source assembly 3. The first projection assembly 4 includes a first projection sheet 422; the second projection assembly 5 is movably connected to the base 2 and protrudes into the slot 23. The second projection assembly 5 includes a second projection sheet 53; when the first projection assembly 4 is inserted forward into the slot 23, the first projection assembly 4 pushes the second projection assembly 5 from the first position to the second position. At this time, the second projection assembly 5 is located above the first projection assembly 4. A motor 6 drives the first projection assembly 4 to rotate. As the first projection assembly 4 rotates, the second projection assembly 5 blocks different positions of the first projection assembly 4, thereby continuously changing the projection pattern presented by the first projection assembly 4. On the basis of rotation, the dynamic sense of the projection picture of the first projection sheet is enhanced. In addition, the first projection assembly 4 can be replaced with a structure that does not trigger the movement of the second projection assembly 5, so as to realize the function of sharing the structure of multiple projection effects and improve product utilization.

[0036] The above detailed description is only an explanation of the preferred embodiment of the present invention, and does not limit the patent scope of the present invention. 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 device, characterized in that: include: The base includes a slot extending outward and a first seat and a second seat forming the slot, wherein the first seat includes a light-transmitting hole extending therethrough, and the second seat includes a projection port extending therethrough upward and downward, wherein the light-transmitting hole and the projection port are both connected to the slot; A light source assembly is mounted on the base; A first projection assembly, which can be movably inserted and removed from the slot and is located above the light source assembly, wherein the first projection assembly includes a first projection sheet; A second projection assembly is movably connected to the base and protrudes into the slot, the second projection assembly comprising a main body, a second projection sheet mounted on the main body, a pivot extending from the main body, and an elastic member sleeved on the pivot, wherein the pivot is mounted on the base; When the first projection assembly is inserted forward into the slot, the first projection assembly pushes the second projection assembly from the first position to the second position. At this time, the second projection assembly is located above the first projection assembly. A motor drives the first projection assembly to rotate. As the first projection assembly rotates, the second projection assembly blocks different positions of the first projection assembly, thereby continuously changing the projection pattern presented by the first projection assembly. When the first projection assembly withdraws backward from the slot, the elastic member drives the second projection sheet to reset. At this time, the first projection assembly is in the first position, and the projections of the first projection assembly and the light-transmitting hole in the vertical direction do not overlap.

2. The projection device as claimed in claim 1, characterized in that: The first projection assembly includes a base and an active portion protruding upward relative to the base, the first projection sheet is installed on the base, and the second projection assembly includes a driven portion arranged toward the first projection assembly, and the active portion drives the driven portion to move.

3. The projection device as claimed in claim 2, characterized in that: The active part pushes the driven part to move forward. When the second projection assembly moves from the first position to the second position, the contact area between the active part and the driven part gradually increases from small to large or the contact area between the active part and the driven part remains unchanged.

4. The projection device as claimed in claim 2, characterized in that: The base includes a projection opening extending upward, and the projection opening is connected to the slot in vertical communication. When the second projection assembly moves from the first position to the second position, the area of ​​the projection opening blocked by the second projection sheet increases continuously.

5. The projection device as claimed in claim 4, characterized in that: When the second projection assembly is located at the first position, the second projection assembly and the projection port are staggered in the up-down direction.

6. The projection device according to any one of claims 1 to 5, characterized in that: The second projection assembly is pivotally connected to the base. When the first projection assembly is inserted into the slot, the second projection assembly swings from back to front at an angle less than 90°.

7. The projection device as claimed in claim 6, characterized in that: The second seat includes a pivot groove connected to the slot up and down, the pivot protrudes into the pivot groove, the elastic member includes a base and a first end and a second end extending from the base in opposite directions, the first end and the second end are subjected to opposite forces, the first end is upwardly clamped to the first seat, and the second end is clamped to the main body.

8. The projection device as claimed in claim 7, characterized in that: The first end protrudes upward into the slot of the first seat, the slot is connected to the pivoting slot, and the second end protrudes downward into the concave position of the main body to drive the second slide sheet to move.

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