Starry sky projection equipment

Abstract

The utility model relates to the technical field of atmosphere equipment, in particular to starry sky projection equipment. According to the technical scheme, the device comprises a projection external assembly, one side of the projection external assembly is provided with an adjusting assembly used for converting starry sky images, one side of the projection external assembly is connected with a starry sky rotating assembly used for providing starry sky images in an inserted mode, and the projection external assembly is internally provided with a multipurpose loudspeaker sound cavity assembly used for heat dissipation. The rotating sleeve block drives the hollow clamping sleeve to slide up and down along the main supporting rod, the fan impeller rods achieve the partial heat dissipation effect, the hollow clamping sleeve conducts air flow to the sleeve rod, air directly reaching the light source assembly is discharged outwards through the holes, the fan impeller rods discharge heat, the heat dissipation problem of a high-power light source is solved, and the heat dissipation effect of the high-power light source is improved. And light attenuation caused by overheating is avoided.

Description

Technical Field

[0001] This utility model relates to the field of atmospheric equipment technology, and in particular to a star projection device. Background Technology

[0002] Starry sky projection equipment simulates the dynamic effects of the starry sky through optical systems (such as light sources, lenses, interference disks / reflection modules). By rotating an interference disk with concave and convex textures, light is refracted and reflected to form a sense of nebula layering. At the same time, it combines lasers (coherent light sources) and LEDs (incoherent light sources) to generate star fields and cloud effects. Furthermore, a motor-driven gear or conveyor belt drives the reflection module to rotate, realizing the movement and dynamic changes of nebulae.

[0003] A publicly disclosed patent document with publication number CN216619415U discloses a starry sky projection device, including an upper body and a lower body. A starry sky projection lamp is fixedly installed inside the upper body, and a control unit for controlling the starry sky projection lamp is set on the outside of the lower body. When the lower body of the starry sky projection device is positioned, the projection direction of the starry sky projection lamp can be adjusted by rotating the upper body without releasing the bottom positioning of the lower body. However, the orientation adjustment is inconvenient. Furthermore, by means of wires set on the outside of the upper and lower bodies, the starry sky projection device can be easily picked up by simply using the wires, which facilitates use and provides a better user experience.

[0004] When using the above devices, the combination of lasers and multiple light sources can easily lead to high power consumption. In addition, the heat accumulation of motors and light sources in the closed structure affects the service life of the equipment. At the same time, most current devices only support fixed modes (such as uniform rotation) and cannot simulate the random changes of real nebulae. The single-layer interference disk results in the nebula having a monotonous color and layering. Users have reported the problem of "flatness" during use, resulting in a poor user experience.

[0005] Therefore, this application proposes a star projection device. Summary of the Invention

[0006] The purpose of this invention is to address the problems in the background technology, such as the high power consumption caused by combining lasers with multiple light sources, the heat accumulation of motors and light sources in a closed structure affecting the service life of the equipment, and the fact that most current equipment only supports fixed modes (such as uniform rotation) and cannot simulate the random changes of real nebulae. Therefore, this invention proposes a star projection device.

[0007] The technical solution of this utility model is as follows: a starry sky projection device, including an external projection component, an adjustment component for converting starry sky images is installed on one side of the external projection component, a starry sky rotation component for providing starry sky images is inserted into one side of the external projection component, and a multi-purpose speaker cavity component is installed inside the external projection component.

[0008] The external projection component includes an external projection frame, a heat dissipation frame is provided on one side of the external projection frame, and a plurality of heat dissipation holes are provided on the outer side of the external projection frame in a ring-shaped arrangement on the surface of the external projection frame.

[0009] The multi-purpose speaker cavity assembly includes an ABS plastic protective shell and a main support rod fixedly installed on the inner wall of the projection external frame. A hollow sleeve is inserted into the outer side of the main support rod, and multiple rotating sleeve blocks are fixedly installed on the outer side of the hollow sleeve. A wheel column block is rotatably installed on the top of the rotating sleeve block, an eccentric wheel rod is rotatably installed on one side of the wheel column block, and a fan blade rod is rotatably installed on one side of the eccentric wheel rod. The fan blade rod is rotatably installed on the inner wall of the ABS plastic protective shell.

[0010] Optionally, the external projection component also includes multiple buttons located on the top of the external projection frame. The top of the external projection frame has a projection hollow tube, and a multi-layer lens structure is fixedly installed inside the projection hollow tube.

[0011] Optionally, the adjustment assembly includes a positioning handle fixedly installed on one side of the external projection frame, a first motor fixedly installed inside the positioning handle, and a positioning rod fixedly installed on the output shaft of the first motor.

[0012] Optionally, a large gear is fixedly installed on the side of the positioning rod away from the positioning handle, and a small gear is meshed with the outer side of the large gear.

[0013] Optionally, the starry sky rotation component includes a positioning block fixedly installed inside the projection external frame, and the starry sky rotation disk is inserted into one side of the positioning block inside the projection external frame.

[0014] Optionally, the inner wall of the positioning block is provided with a matching slot, and a light guide plate is rotatably installed inside the starry sky rotating disk, the light guide plate being inserted into the outer side of the matching slot.

[0015] Optionally, a hollow gear is fixedly installed on the outer side of the light guide slot disk, and a small gear is meshed with the outer side of the hollow gear. The small gear is rotatably installed inside the starry sky rotating disk.

[0016] Optionally, the starry sky rotating assembly includes a positioning block, and the multi-purpose speaker cavity assembly further includes a bolt positioning plate fixedly installed at the bottom of the positioning block. A sealing ring block is fixedly installed inside the bolt positioning plate, and a light source assembly is rotatably installed inside the sealing ring block.

[0017] Optionally, an airflow conduction sleeve is fixedly installed at the bottom of the light source assembly, and the airflow conduction sleeve is slidably installed inside the hollow sleeve.

[0018] Optionally, the inner wall of the airflow conduction sleeve is fixedly installed with multiple protrusions, and the hollow sleeve has multiple receiving slots on the side facing the protrusions, the receiving slots being adapted to the protrusions.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] 1. The wheel column is subjected to rotational force, which is divided into two forces, one upward or downward. This force is transmitted to the rotating sleeve through the wheel column, and the rotating sleeve drives the hollow sleeve to slide up and down along the main support rod. Multiple fan blade rods achieve partial heat dissipation. The air transmitted by the hollow sleeve to the light source component is discharged outward through the hole. The fan blade rod dissipates heat, solving the heat dissipation problem of high-power light source and avoiding overheating that leads to light decay.

[0021] 2. The rotating sleeve block drives the hollow sleeve to swing back and forth left and right through the friction between itself and the wheel column block. The hollow sleeve drives the light source assembly to rotate along the sealing ring block through the receiving groove and the protrusion on the inner wall of the airflow conduction sleeve. With the help of different colored light, the light guide groove and multi-layer lens structure above it project the starry sky scene in different combinations, which improves the interest of the projected scene. Each color can be matched with different light guide grooves to achieve different combinations, so as to improve the user's sensory experience.

[0022] 3. When the starry sky rotating component is inserted into the positioning block and the projection external frame, the large gear and the small gear mesh, causing the small gear to rotate with the large gear. The small gear drives the light guide plate to rotate along the matching slot through the hollow gear. The surface of the light guide plate has multiple light guide slots. Each time the light guide slot rotates to directly below the projection hollow tube, the starry sky is projected. This allows a single motor to drive multiple optical components simultaneously, reducing the cost of using the equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a star projection device;

[0024] Figure 2 A schematic diagram of the external projection frame of this utility model is provided;

[0025] Figure 3A schematic diagram of the positioning block of this utility model is provided;

[0026] Figure 4 yes Figure 3 Enlarged view of region A in the middle;

[0027] Figure 5 A schematic diagram of the airflow conduction sleeve of this utility model is provided;

[0028] Figure 6 yes Figure 5 Enlarged view of region B in the middle;

[0029] Figure 7 A structural schematic diagram of the hollow ferrule of this utility model is provided.

[0030] Reference numerals: 1. External projection component; 101. External projection frame; 102. Button; 103. Heat dissipation frame; 104. Hollow projection tube; 105. Heat dissipation hole; 106. Multi-layer lens structure; 2. Adjustment component; 201. Positioning handle; 202. Large gear; 203. Positioning rod; 204. Small gear; 3. Starry sky rotation component; 301. Positioning block; 302. Starry sky rotating disk; 303. Light guide slot disk; 304. Hollow gear; 305. Fitting slot; 4. Multi-purpose speaker cavity component; 401. ABS plastic protective shell; 402. Bolt positioning disk; 403. Fan impeller rod; 404. Eccentric wheel rod; 405. Wheel column block; 406. Rotating sleeve block; 407. Hollow sleeve; 408. Airflow conduction sleeve rod; 409. Sealing ring block; 410. Main support rod; 411. Light source component. Detailed Implementation

[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] like Figures 1-2 As shown, the present invention proposes a starry sky projection device, including an external projection component 1, an adjustment component 2 for converting starry sky images installed on one side of the external projection component 1, a starry sky rotation component 3 for providing starry sky images plugged into one side of the external projection component 1, and a multi-purpose speaker cavity component 4 for heat dissipation installed inside the external projection component 1.

[0033] The external projection component 1 includes an external projection frame 101. A heat dissipation frame 103 is provided on one side of the external projection frame 101. Multiple heat dissipation holes 105 are provided on the outer side of the external projection frame 101 in a ring-shaped arrangement on the surface of the external projection frame 101. The heat dissipation frame 103 and multiple heat dissipation holes 105 are evenly distributed around the external projection frame 101. Together with the multi-purpose speaker cavity component 4, it can exhaust a large amount of hot air generated inside the device, improving the heat dissipation effect. The external projection component 1 also includes multiple buttons 102 located on the top of the external projection frame 101. A projection hollow tube 104 is provided on the top of the external projection frame 101. A multi-layer lens structure 106 is fixedly installed inside the projection hollow tube 104. The multi-layer lens structure 106 adopts a double-layer lens structure with an outer nebula pattern and an inner light effect pattern. Together with the star rotation component 3, the rotation of the star rotation component 3 achieves a dynamic nebula effect, enhancing the sense of layering.

[0034] like Figure 3 and Figure 6 As shown, the adjustment component 2 includes a positioning handle 201 fixedly installed on one side of the projection external frame 101. A first motor is fixedly installed inside the positioning handle 201. A positioning rod 203 is fixedly installed on the output shaft of the first motor. A large gear 202 is fixedly installed on the side of the positioning rod 203 away from the positioning handle 201. A small gear 204 is meshed with the outer side of the large gear 202. The first motor acts as a drive, driving the positioning rod 203 to rotate. The positioning rod 203 drives the large gear 202 to rotate, and the large gear 202 drives the small gear 204 to rotate.

[0035] like Figures 2-4 As shown, the starry sky rotation assembly 3 includes a positioning block 301 fixedly installed inside the projection external frame 101. A starry sky rotation disk 302 is inserted into one side of the positioning block 301 inside the projection external frame 101. The inner wall of the positioning block 301 is provided with a fitting groove 305. A light guide disk 303 is rotatably installed inside the starry sky rotation disk 302. The multi-purpose speaker cavity assembly 4 also includes a bolt positioning disk 402 fixedly installed at the bottom of the positioning block 301. A sealing ring block 409 is fixedly installed inside the bolt positioning disk 402. A light source assembly 411 is rotatably installed inside the sealing ring block 409. The light guide disk 303 generates nebula or meteor trails through the grating effect in the prior art. The light guide slot 303 works in conjunction with the incoherent light source, namely the light source component 411, to simulate a dynamic star flow effect. The light guide slot 303 is inserted into the outer side of the fitting slot 305. A hollow gear 304 is fixedly installed on the outer side of the light guide slot 303. The outer side of the hollow gear 304 meshes with a small gear 204. The small gear 204 is rotatably installed inside the star rotating disk 302.

[0036] The external projection frame 101 is made of ABS plastic and consists of upper and lower shells, which are removable for easy maintenance. The fitting slot 305 is a telescopic component that slides inside the positioning block 301. A spring connects the fitting slot 305 to the positioning block 301. The diameter of the fitting slot 305 only matches the central hole of the light guide plate 303. Users can replace different star-shaped rotating components 3. When the star-shaped rotating plate 302 is inserted or removed from the positioning block 301 and the external projection frame 101, the fitting slot 305 is compressed by the pressure of the light guide plate 303 until the central hole of the light guide plate 303 contacts the fitting slot 305, and the two engage. The fitting slot 305 is spring-loaded. When the spring returns to its original position, the light guide plate 303 rotates along the mating slot 305, or the starry sky rotating plate 302 compresses the mating slot 305 and pulls it out from the inside of the positioning block 301 and the projection outer frame 101. When the starry sky rotating component 3 is inserted into the inside of the positioning block 301 and the projection outer frame 101, the large gear 202 and the small gear 204 mesh, causing the small gear 204 to rotate with the large gear 202. The small gear 204 drives the light guide plate 303 to rotate along the mating slot 305 through the hollow gear 304. The surface of the light guide plate 303 is provided with multiple light guide slots. When the light guide slot rotates to the direct below the projection hollow tube 104, the projection of the starry sky is displayed, thereby realizing the simultaneous driving of multiple optical components by a single motor and reducing the operating cost of the equipment.

[0037] In this embodiment, as Figures 3-7As shown, the multi-purpose speaker cavity assembly 4 includes an ABS plastic protective shell 401 and a main support rod 410 fixedly installed on the inner wall of the projection external frame 101. A hollow sleeve 407 is inserted into the outer side of the main support rod 410. Multiple rotating sleeve blocks 406 are fixedly installed on the outer side of the hollow sleeve 407. A wheel column block 405 is rotatably installed on the top of the rotating sleeve block 406. An eccentric wheel rod 404 is rotatably installed on one side of the wheel column block 405. A fan blade is rotatably installed on one side of the eccentric wheel rod 404. The impeller rod 403 is rotatably mounted on the inner wall of the ABS plastic protective shell 401. An airflow conduction sleeve 408 is fixedly mounted on the bottom of the light source assembly 411. The airflow conduction sleeve 408 is slidably mounted inside the hollow sleeve 407. Multiple protrusions are fixedly mounted on the inner wall of the airflow conduction sleeve 408. Multiple receiving slots are opened on the side of the hollow sleeve 407 facing the protrusions, and the receiving slots are adapted to the protrusions. A second motor is fixedly mounted on one of the impeller rods 403. The motor is fixedly mounted on the inner wall of the ABS plastic protective shell 401. A speaker cavity is installed on the surface of the ABS plastic protective shell 401 to project music in conjunction with the starry sky projection, enhancing the ambiance. Simultaneously, the speaker cavity, being an electronic component, generates significant heat. A second motor drives a fan impeller rod 403 to rotate along the ABS plastic protective shell 401. The fan impeller rod 403 drives an eccentric wheel rod 404 to rotate along a wheel post block 405. The wheel post block 405 experiences rotational force, which is divided into two forces, one upward and one downward, and is conducted through the wheel post block 405 to a rotating sleeve block 406. The rotating sleeve block 406 drives a hollow sleeve 407 to slide up and down along the main support rod 410. Multiple fan impeller rods 403 first rotate along the ABS plastic protective shell 401, dissipating internal heat through the heat dissipation frame 103 and heat dissipation holes 105, achieving partial heat dissipation. Meanwhile, the light source assembly 411 accounts for a significant portion of the overall heat of the device, with a large amount of heat emanating from its periphery. Figure 7 Because the protrusion on the inner wall of the airflow guiding sleeve 408 matches the receiving groove at the inner ring of the hollow sleeve 407, the hollow sleeve 407 and the airflow guiding sleeve 408 are in a state of synchronous rotation due to the limiting effect of the protrusion and the receiving groove. Furthermore, the airflow guiding sleeve 408 slides up and down along the receiving groove of the hollow sleeve 407 via the protrusion. Figure 4 The surface of the airflow conduction sleeve 408 has multiple holes. The hollow sleeve 407 is a pen-like mechanism with its opening connected to the main support rod 410. When its sealing part moves upward, the air that reaches the light source assembly 411 through the airflow conduction sleeve 408 is discharged outward through the hole. The fan impeller rod 403 dissipates heat, solving the heat dissipation problem of high-power light source and sound source, and avoiding overheating that leads to light decay and aging of the speaker cavity.

[0038] Meanwhile, another force is the knob force, which drives the wheel column block 405 to swing along the rotating sleeve block 406. The rotating sleeve block 406 drives the hollow sleeve 407 to swing back and forth through the friction between it and the wheel column block 405. The hollow sleeve 407 drives the light source assembly 411 to rotate along the sealing ring block 409 through the receiving groove and the protrusion on the inner wall of the airflow conduction sleeve rod 408. The light source assembly 411 is a rotating lamp assembly in the prior art, that is, the bulb emits different light after rotation. It is often used in neon lights. With different colored light, the light guide groove and the multi-layer lens structure 106 above it project the starry sky scene in different combinations, which improves the interest of the projected scene. Each color can be matched with different light guide grooves to achieve different combinations, making the user's senses better.

[0039] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A starry sky projection device, comprising an external projection component (1), characterized in that: An adjustment component (2) for converting starry sky images is installed on one side of the external projection component (1), and a starry sky rotation component (3) for providing starry sky images is inserted into one side of the external projection component (1). A multi-purpose speaker cavity component (4) is installed inside the external projection component (1). The external projection component (1) includes an external projection frame (101), a heat dissipation frame (103) is provided on one side of the external projection frame (101), and a plurality of heat dissipation holes (105) are provided on the outer side of the external projection frame (101) in a ring-shaped manner on the surface of the external projection frame (101). The multi-purpose speaker cavity assembly (4) includes an ABS plastic protective shell (401) and a main support rod (410) fixedly installed on the inner wall of the projection external frame (101). A hollow sleeve (407) is inserted into the outer side of the main support rod (410). Multiple rotating sleeve blocks (406) are fixedly installed on the outer side of the hollow sleeve (407). A wheel column block (405) is rotatably installed on the top of the rotating sleeve block (406). An eccentric wheel rod (404) is rotatably installed on one side of the wheel column block (405). A fan impeller rod (403) is rotatably installed on one side of the eccentric wheel rod (404). The fan impeller rod (403) is rotatably installed on the inner wall of the ABS plastic protective shell (401).

2. A star projection device according to claim 1, characterized in that The external projection component (1) also includes multiple buttons (102) set on the top of the external projection frame (101). The top of the external projection frame (101) is provided with a projection hollow tube (104), and a multi-layer lens structure (106) is fixedly installed inside the projection hollow tube (104).

3. The star projection device of claim 1, wherein, The adjustment component (2) includes a positioning handle (201) fixedly installed on one side of the projection external frame (101). A first motor is fixedly installed inside the positioning handle (201), and a positioning rod (203) is fixedly installed on the output shaft of the first motor.

4. A star projection device according to claim 3, wherein, A large gear (202) is fixedly installed on the side of the positioning rod (203) away from the positioning handle (201), and a small gear (204) is meshed with the outer side of the large gear (202).

5. The star projection device of claim 1, wherein, The starry sky rotating component (3) includes a positioning block (301) fixedly installed inside the projection outer frame (101), and a starry sky rotating disk (302) is inserted into one side of the positioning block (301) inside the projection outer frame (101).

6. A star projection device according to claim 5, wherein, The inner wall of the positioning block (301) is provided with a fitting slot (305), and the interior of the starry sky rotating disk (302) is rotatably installed with a light guide disk (303), which is inserted into the outer side of the fitting slot (305).

7. A star projection device according to claim 6, wherein A hollow gear (304) is fixedly installed on the outer side of the light guide disk (303), and a small gear (204) is meshed with the outer side of the hollow gear (304). The small gear (204) is rotatably installed inside the starry sky rotating disk (302).

8. A starry sky projection device according to claim 5, characterized in that, The multi-purpose speaker cavity assembly (4) also includes a bolt positioning plate (402) fixedly installed at the bottom of the positioning block (301). A sealing ring block (409) is fixedly installed inside the bolt positioning plate (402), and a light source assembly (411) is rotatably installed inside the sealing ring block (409).

9. A star projection device according to claim 8, wherein, The bottom of the light source assembly (411) is fixedly installed with an airflow conduction sleeve (408), which is slidably installed inside the hollow sleeve (407).

10. A star projection device according to claim 9, wherein, The inner wall of the airflow conduction sleeve (408) is fixedly installed with multiple protrusions, and the hollow sleeve (407) has multiple receiving slots on the side facing the protrusions, and the receiving slots are adapted to the protrusions.

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