Backlight type rotating flowing sand picture
By employing a backlit design and a rotating central axis cross structure in the quicksand painting, the problems of large space occupation and insufficient light in quicksand painting are solved, achieving a clear viewing effect in any environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YAJIE TECHNOLOGY CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-06-02
AI Technical Summary
Existing quicksand paintings take up a lot of space due to their flip design, and their viewing effect is poor in low light or at night, requiring a specific placement environment.
It adopts a backlight design, with a light-blocking plate on one side of the turntable, and a filter and a light-emitting body placed between the hourglass and the light-blocking plate. The light emitted by the light-emitting body is evenly diffused to the hourglass through the filter, providing sufficient backlight. At the same time, the rotation center axis of the turntable and the hourglass intersects to prevent it from flipping back and forth.
It reduces the space occupied by the sand painting, improves its aesthetics, and allows the hourglass to be clearly viewed under any lighting conditions, thus reducing the requirements for the placement environment.
Smart Images

Figure CN224311503U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a quicksand painting, and more particularly to a backlit rotating quicksand painting. Background Technology
[0002] As a decorative item, quicksand painting is increasingly popular due to its dynamic, flowing effect and high aesthetic appeal. Existing quicksand paintings typically feature a transparent design on both sides. They are mounted on a stand via a rotating axis coaxial with the diameter of the painting, allowing for intermittent flipping. This means the front side flips to the back, and vice versa, causing the sand grains inside to fall back down and recreate the dynamic effect. However, this flipping design requires considerable space on both sides, thus occupying a significant amount of display space. Furthermore, the transparent sides make it difficult for consumers to observe the quicksand effect in low light or at night. Therefore, existing quicksand paintings have specific environmental requirements, significantly reducing their aesthetic appeal. Utility Model Content
[0003] The purpose of this invention is to provide a backlit rotating sand painting that occupies less space, has lower requirements for the placement environment, and is more visually appealing.
[0004] To achieve the above objectives, this utility model provides a backlit rotating sand painting, comprising a base, a turntable, a light-emitting element, a filter, an hourglass, a power supply, and a control system. A light-blocking plate is provided on one side of the turntable, and the hourglass is disposed on the other side of the turntable. The filter is disposed between the light-blocking plate and the hourglass, and the light-emitting element is disposed between the light-blocking plate and the filter. The turntable is rotatably mounted on the base, and its rotational axis intersects the surface of the hourglass. The power supply and the control system are disposed within the base, and the power supply and the light-emitting element are electrically connected to the control system.
[0005] Compared with existing technologies, this invention features a light-blocking plate on one side of the turntable, and a light filter and a light-emitting element are placed between the hourglass and the light-blocking plate. Therefore, the light emitted by the light-emitting element is evenly diffused onto the hourglass after passing through the filter. This provides sufficient backlighting to the hourglass, allowing consumers to clearly see the hourglass regardless of its placement or ambient light intensity, thus enhancing the overall visual appeal and aesthetics. Furthermore, by rotatably mounting the turntable on the base with its central axis intersecting the surface of the hourglass, the hourglass can rotate on its surface plane without needing to flip back and forth. Therefore, no space is required on the front and back sides, resulting in a smaller footprint. In summary, this backlit rotating sand painting has lower requirements for the placement environment and offers superior aesthetics.
[0006] Preferably, the turntable has an annular wall arranged around the light-blocking plate, the annular wall and the light-blocking plate forming an outwardly opening receiving cavity, and the light-emitting element, the filter and the hourglass are disposed in the receiving cavity.
[0007] Specifically, the light-emitting element is disposed on the inner side of the annular wall or on the side of the light-blocking plate facing the filter.
[0008] Preferably, the surface of the light-blocking plate facing the filter is reflective. This allows more light to be reflected onto the filter, thereby improving the visual effect of the hourglass and enhancing its aesthetic appeal.
[0009] Preferably, the rotation axis of the turntable is perpendicular to the surface of the hourglass disc. This allows the hourglass disc to rotate entirely in a vertical plane, requiring less space for rotation and resulting in better rotation efficiency.
[0010] Preferably, the light-blocking plate has a protruding limiting post on the side facing away from the filter, and the base has a semi-circular limiting groove. The limiting post is inserted into the limiting groove and can slide within the extension range of the limiting groove. By setting the limiting groove, excessive rotation of the hourglass disc can be prevented, ensuring accurate positioning of the hourglass disc and improving the hourglass effect.
[0011] Specifically, the limiting post has through holes extending through both sides, and the wire of the light-emitting element passes through the through holes and is electrically connected to the control system. The through holes guide the wire, preventing it from being pulled by the rotation of the turntable, ensuring safer and more stable sliding of the wire within the limiting groove.
[0012] Preferably, the backlit rotating sand painting further includes a drive motor, which is mounted on the base and its output shaft is connected to the rotation center shaft of the turntable. The drive motor is electrically connected to the control system. By using the drive motor to drive the turntable to rotate, the hourglass disc can be automatically flipped, thereby automatically switching the state of the hourglass without manual operation, making it very comfortable and convenient to use.
[0013] Preferably, the backlit rotating sand painting further includes a vibration motor, which is disposed on the base and electrically connected to the control system. The vibration motor can vibrate the sand grains in the hourglass tray to prevent the sand grains from getting stuck or to quickly settle the sand grains.
[0014] Specifically, the base includes a base, a support column, and a motor support. The support column is disposed on the base, the motor support is disposed at the upper end of the support column, and the drive motor is disposed inside the motor support. Attached Figure Description
[0015] Figure 1 This is a frontal perspective view of the backlit rotating sand painting of this utility model.
[0016] Figure 2 This is a three-dimensional view of the back of the backlit rotating sand painting of this utility model.
[0017] Figure 3 This is a side view of the backlit rotating sand painting of this utility model.
[0018] Figure 4 This is an exploded view of the front of the backlit rotating sand painting of this utility model.
[0019] Figure 5 This is an exploded view of the back of the backlit rotating sand painting of this utility model.
[0020] Figure 6 This is an axial cross-sectional view of the backlit rotating sand painting of this utility model. Detailed Implementation
[0021] To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0022] Please see Figures 1 to 6The backlit rotating sand painting 100 of this utility model includes a base 1, a turntable 2, a light-emitting element 3, a light filter 4, an hourglass disc 5, a power supply 6, and a control system 7. The turntable 2, the light filter 4, and the hourglass disc 5 are circular. A light-blocking plate 21 is provided on one side (rear side) of the turntable 2, which can block light from passing through the rear side of the turntable 2. The hourglass disc 5 is disposed on the other side (front side) of the turntable 2. The light filter 4 is disposed between the light-blocking plate 21 and the hourglass disc 5, and the light-emitting element 3 is disposed between the light-blocking plate 21 and the filter 4. The turntable 2 is rotatably disposed on the base 1, and its rotation center axis intersects the surface of the hourglass disc 5; in this embodiment, the rotation center axis of the turntable 2 is perpendicular to the surface of the hourglass disc 5. This allows the hourglass disc 5 to rotate completely in a vertical plane, requiring less space for rotation and resulting in a better rotation effect. The power supply 6 and the control system 7 are disposed inside the base 1, and the power supply 6 and the light-emitting element 3 are electrically connected to the control system 7 respectively.
[0023] Please see again Figure 4 The turntable 2 has an annular wall 22 circumferentially surrounding the light-blocking plate 21, and the annular wall 22 and the light-blocking plate 21 are integrally formed. The annular wall 22 and the light-blocking plate 21 form an outwardly opening receiving cavity 23, and the light-emitting element 3, the light filter 4, and the hourglass 5 are disposed within the receiving cavity 23. The light-emitting element 3 is disposed inside the annular wall 22 or on the side of the light-blocking plate 21 facing the light filter 4. In this embodiment, the light-emitting element 3 is disposed inside the annular wall 22 and forms a ring, and the light-emitting element 3 is an LED light. The surface of the light-blocking plate 21 facing the light filter 4 is a reflective surface. This allows more light to be reflected onto the light filter 4, thereby improving the visual effect of the hourglass 5 and enhancing its aesthetic appeal.
[0024] Please see Figure 4 and Figure 5The light-blocking plate 21 has a protruding limiting post 24 on its eccentric side facing away from the filter 4. The base 1 has a semi-circular limiting groove 1a with a central angle of 180 degrees. The center of the limiting groove 1a is concentric with the rotation center of the turntable 2. The limiting post 24 is inserted into the limiting groove 1a and slides within its extension range. By setting the limiting groove 1a, excessive rotation of the hourglass disc 5 can be prevented, ensuring accurate positioning of the hourglass disc 5 and improving the hourglass effect. Specifically, the limiting post 24 has through holes 241 extending through both sides. The wire of the light-emitting element 3 passes through the through holes 241 and is electrically connected to the control system 7. The through holes 241 guide the wire and prevent it from being pulled by the rotation of the turntable 2, ensuring safer and more stable sliding of the wire within the limiting groove 1a. Of course, the through holes can also be set in other positions on the light-blocking plate 21.
[0025] Please see again Figure 4 and Figure 5 The backlit rotating sand painting 100 also includes a drive motor 8, which is mounted on the base 1 and its output shaft is connected to the rotation center shaft of the turntable 2. The drive motor 8 is electrically connected to the control system 7. Using the drive motor 8 to drive the turntable 2 to rotate allows the hourglass disc 5 to automatically flip, thus automatically switching the state of the hourglass without manual operation, making it very comfortable and convenient to use. Furthermore, the control system 7 has a timing module and a motor current detection module. When the timing module reaches a certain time, such as 5 minutes (which can be determined according to the sand leakage time of the hourglass), the control system 7 can control the drive motor 8 to start. When the limiting post 24 reaches one end of the limiting groove 1a, the turntable 2 is blocked and stops rotating. At this time, the current of the drive motor 8 increases. When the motor current detection module detects that the motor current is greater than a set value, the control system 7 controls the drive motor 8 to stop rotating.
[0026] Please see again Figure 4 and Figure 5 The backlit rotating sand painting 100 also includes a vibration motor 9, which is mounted on the base 1 and electrically connected to the control system 7. The vibration motor 9 can vibrate the sand grains in the hourglass disc 5 to prevent the sand grains from getting stuck or to quickly settle the sand grains.
[0027] Please see again Figure 4 and Figure 6The base 1 includes a base 11, a support column 12, and a motor support 13. The support column 12 is disposed on the base 11. The operation buttons of the control system 7 are disposed on the front of the base 11, and the control circuit board of the control system 7 is disposed inside the base 11. The motor support 13 is disposed at the upper end of the support column 12, and the drive motor 8 is disposed inside the motor support 13.
[0028] In summary, the working principle of the backlit rotating sand painting 100 of this utility model will be described in detail below:
[0029] When power is switched on (6), the control system (7) controls the vibration motor (9) to operate for 15 seconds and then stops vibrating, allowing the sand in the hourglass disc (5) to settle quickly. Afterwards, the control circuit board controls the drive motor (8) to start, causing the turntable (2) and hourglass disc (5) to rotate 180 degrees clockwise, at which point the hourglass disc (5) can start leaking sand again. At this time, because the limiting post (24) is blocked by one end of the limiting groove (1a), the turntable (2) cannot rotate, causing a sudden increase in the current of the drive motor (8). When the motor current detection module detects that the current has reached the set value, the control system (7) immediately controls the drive motor (8) to stop rotating. After the timer has counted for 5 minutes, the hourglass disc (5) has finished leaking sand. At this point, the control system (7) controls the drive motor (8) to start again, causing the output shaft to rotate in the opposite direction, thereby driving the turntable (2) and hourglass disc (5) to rotate 180 degrees in the opposite direction, allowing the hourglass disc (5) to start leaking sand again. This process continues, enabling the hourglass disc (5) to automatically circulate and leak sand.
[0030] Compared with existing technologies, this invention provides a light-blocking plate 21 on one side of the turntable 2, and a light filter 4 and a light-emitting element 3 are arranged between the hourglass disc 5 and the light-blocking plate 21. Therefore, the light emitted by the light-emitting element is evenly diffused to the hourglass disc 5 after passing through the light filter 4. This provides sufficient backlighting to the hourglass disc 5, allowing consumers to clearly view the hourglass regardless of its placement or ambient light intensity, thus enhancing the overall visual appeal and aesthetics. Furthermore, by rotatably mounting the turntable 2 on the base 1 with its rotation axis intersecting the surface of the hourglass disc 5, the hourglass disc 5 can rotate on its surface plane without needing to flip back and forth. Therefore, no space is required on the front and back sides, resulting in a smaller footprint. In summary, this backlit rotating sand painting 100 has lower requirements for the placement environment and offers higher aesthetic appeal.
[0031] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A backlit rotating sand painting, characterized in that: The device includes a base, a turntable, a light emitter, a filter, an hourglass disc, a power supply, and a control system. A light-blocking plate is provided on one side of the turntable, and the hourglass disc is located on the other side of the turntable. The filter is positioned between the light-blocking plate and the hourglass disc, and the light emitter is positioned between the light-blocking plate and the filter. The turntable is rotatably mounted on the base, with its rotation axis intersecting the surface of the hourglass disc. The power supply and the control system are located within the base, and the power supply and the light emitter are electrically connected to the control system.
2. The backlit rotating sand painting according to claim 1, characterized in that: The turntable has an annular wall arranged around the light-blocking plate, and the annular wall and the light-blocking plate form an outwardly opening receiving cavity, in which the light-emitting body, the filter and the hourglass are disposed.
3. The backlit rotating sand painting according to claim 2, characterized in that: The light emitter is disposed on the inner side of the annular wall or on the side of the light-blocking plate facing the filter.
4. The backlit rotating sand painting according to claim 1, characterized in that: The surface of the light-blocking plate facing the filter is a reflective surface.
5. The backlit rotating sand painting according to claim 1, characterized in that: The rotation center axis of the turntable is perpendicular to the surface of the hourglass.
6. The backlit rotating sand painting according to claim 1, characterized in that: The light-blocking plate has a protruding limiting post on the side facing away from the filter. The base has a semi-circular limiting groove, and the limiting post is inserted into the limiting groove to slide within the extension range of the limiting groove.
7. The backlit rotating sand painting according to claim 6, characterized in that: The limiting post has through holes that pass through both sides, and the wire of the light-emitting body passes through the through holes and is electrically connected to the control system.
8. The backlit rotating sand painting according to claim 1, characterized in that: The backlit rotating sand painting also includes a drive motor, which is mounted on the base and its output shaft is connected to the rotation center shaft of the turntable. The drive motor is electrically connected to the control system.
9. The backlit rotating sand painting according to claim 1, characterized in that: The backlit rotating sand painting also includes a vibration motor, which is mounted on the base and electrically connected to the control system.
10. The backlit rotating sand painting according to claim 8, characterized in that: The base includes a base, a support column, and a motor support. The support column is disposed on the base, the motor support is disposed at the upper end of the support column, and the drive motor is disposed inside the motor support.