An adjustable shadow puppet lamp

By using a gear transmission system driven by an electric motor and an electromagnet, the problem of traditional shadow puppet lamps lacking dynamic changes and interactivity has been solved, enabling convenient replacement and dynamic changes of patterns and improving operational efficiency.

CN224454434UActive Publication Date: 2026-07-03BEIJING SCI & TECH PATENT OFFICE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING SCI & TECH PATENT OFFICE
Filing Date
2025-08-05
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional shadow puppet lights lack dynamic changes and interactivity, and are not convenient for changing the projected patterns.

Method used

The system employs a motor-driven gear transmission system in conjunction with an electromagnet to enable rapid replacement of the pattern ring. The combination of the motor and the electromagnet facilitates convenient installation and replacement of the pattern ring.

Benefits of technology

It enables dynamic changes and convenient replacement of patterns, improving operational efficiency and enhancing interactivity.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of shadow puppet lamps and provides an adjustable shadow puppet lamp, including a base and a pattern ring. A light-shielding cover, a motor, and a gear ring are fixedly connected to the top wall of the base. The light-shielding cover has a part-removal channel and a light-transmitting cloth is fixedly connected to it. A second gear is fixedly connected to the rotor of the motor. A rotating column is rotatably connected to the top wall of the base, and a first gear and a rotating base are fixedly connected to the rotating column. The second gear meshes with the first gear. The rotating base has two gear channels. A rotating rod is rotatably connected to the inner wall of one gear channel, and the rotating rod is rotatably connected to the inner wall of the other gear channel. Two third gears are fixedly connected to the rotating rod, located in the two gear channels respectively. One of the third gears meshes with the gear ring. A lamp post and two support plates are fixedly connected to the top wall of the rotating base. A third permanent magnet is fixedly connected to the support plate, and a slide block is rotatably connected to the support plate. A fourth gear is rotatably connected to the slide block. This utility model allows for convenient and quick replacement of the pattern ring.
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Description

Technical Field

[0001] This utility model relates to the field of shadow puppet lamp technology, specifically to an adjustable shadow puppet lamp. Background Technology

[0002] Shadow puppet lights are lighting devices that combine projection optics and decorative art, and are often used in children's rooms, bedrooms, and festive occasions. Traditional shadow puppet lights usually project static images using fixed patterns, providing only basic illumination, lacking dynamic changes and interactivity, and making it inconvenient to change the projected patterns. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model aims to provide an adjustable shadow puppet lamp. To solve these problems, this utility model adopts the following technical solution:

[0004] An adjustable shadow puppet lamp includes a base and a pattern ring. A light shield, a motor, and a gear ring are fixedly connected to the top wall of the base. The light shield has a part-removal channel and a light-transmitting cloth is fixedly connected to it. A second gear is fixedly connected to the rotor of the motor. A rotating column is rotatably connected to the top wall of the base. A first gear and a rotating seat are fixedly connected to the rotating column. The second gear meshes with the first gear. Two gear channels are opened on the rotating seat. A rotating rod is rotatably connected to the inner wall of one gear channel. The rotating rod is rotatably connected to the inner wall of the other gear channel. Two third gears are fixedly connected to the rotating rod. The two third gears are located in the two gear channels respectively. One of the third gears meshes with the gear ring. A lamp post and two support plates are fixedly connected to the top wall of the rotating seat.

[0005] A third permanent magnet is fixedly attached to the support plate. A slide block is slidably connected to the support plate. A fourth gear is rotatably connected to the slide block. A first permanent magnet is fixedly attached to the slide block. The slide block is connected to an electromagnet via a second elastic element. The electromagnet is fixedly attached to the support plate. A second rotating shaft and a first rotating wheel are rotatably connected to the support plate. A fifth gear and the first rotating wheel are fixedly attached to the second rotating shaft. A second rotating wheel is rotatably connected to the support plate. The second rotating wheel is connected to the first rotating wheel via a transmission chain. Two or more connecting parts are fixedly attached to the transmission chain. A block groove is opened on the connecting part. A support block is slidably connected to the inner wall of the block groove. The support block is connected to the inner wall of the block groove via a first elastic element. A second permanent magnet is fixedly attached to the support block. Two or more pattern bodies are connected to the pattern ring. Two annular grooves are opened on the bottom wall of the pattern ring. One of the support blocks on the left transmission chain abuts against the inner wall of one of the annular grooves. One of the support blocks on the right transmission chain abuts against the inner wall of the other annular groove.

[0006] Preferably, the length of the second rotating shaft on the left is longer than the length of the second rotating shaft on the right, and the length of the first rotating shaft on the left is longer than the length of the first rotating shaft on the right.

[0007] Preferably, the lamp post is provided with a lamp holder, on which an LED bulb can be detachably installed.

[0008] Preferably, the lamp post has a through hole through which the power cord passes and is electrically connected to the LED bulb.

[0009] Preferably, an aluminum heat sink is attached to the surface of the lamp post.

[0010] Preferably, the outer diameter of the second gear is smaller than the outer diameter of the first gear.

[0011] Preferably, the motor is a geared motor.

[0012] Preferably, the translucent fabric is made of polyester.

[0013] Preferably, the material of the light-shielding cover includes PVC.

[0014] Preferably, the patterned ring material includes a deformable material.

[0015] The present invention has the following beneficial effects:

[0016] This invention enables the projection of patterns onto a translucent fabric through a motor drive, allowing viewers to appreciate and learn. Furthermore, when the pattern ring needs replacement, there's no need to insert it into the light-shielding enclosure, eliminating the difficulty of installation. The pattern ring can be installed in a well-viewed location outside the light-shielding enclosure, and then replaced by the motor in conjunction with an electromagnet. This allows for adjustment of the pattern on the translucent fabric and quick removal of the ring to be replaced, eliminating the need for disassembly and improving the convenience and efficiency of the replacement process. It also eliminates the need for multiple motors to drive two transmission chains. Attached Figure Description

[0017] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an adjustable shadow puppet lamp according to this utility model;

[0019] Figure 2 This is a utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a utility model Figure 1 Enlarged view of point B in the middle;

[0021] Figure 4 This is a utility model Figure 1Left view of the electromagnet on the left and the slide on the left;

[0022] Figure 5 This is a utility model Figure 1 A schematic diagram of the structure of the patterned ring.

[0023] Reference numerals: 1. Base; 2. Light-shielding cover; 3. Translucent cloth; 4. Picking channel; 5. Rotating column; 6. First gear; 7. Rotary seat; 8. Motor; 9. Second gear; 10. Gear ring; 11. Gear channel; 12. Third gear; 13. Fourth gear; 14. Slide seat; 15. First rotating shaft; 16. Fifth gear; 17. Second rotating shaft; 18. First rotating wheel; 19. Transmission chain; 20. Support plate; 21. Support block; 22. First elastic element; 23. Connector; 24. Block groove; 25. Pattern ring; 26. Ring groove; 27. Pattern body; 28. Lamp post; 29. ​​First permanent magnet; 30. Second elastic element; 31. Electromagnet; 32. Second rotating wheel; 33. Rotating rod; 34. Second permanent magnet; 35. Third permanent magnet. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] like Figure 1-5 As shown in the figure, an adjustable shadow puppet lamp includes a base 1 and a pattern ring 25. A light shield 2, a motor 8, and a gear ring 10 are fixedly connected to the top wall of the base 1. A part-retrieving channel 4 is opened on the light shield 2. A light-transmitting cloth 3 is fixedly connected to the light shield 2. A second gear 9 is fixedly connected to the rotor of the motor 8. A rotating column 5 is rotatably connected to the top wall of the base 1. A first gear 6 and a rotating seat 7 are fixedly connected to the rotating column 5. The second gear 9 and the first gear 6 mesh. Two gear channels 11 are opened on the rotating seat 7. A rotating rod 33 is rotatably connected to the inner wall of one gear channel 11. The rotating rod 33 is rotatably connected to the inner wall of the other gear channel 11. Two third gears 12 are fixedly connected to the rotating rod 33. The two third gears 12 are located in the two gear channels 11 respectively. One of the third gears 12 meshes with the gear ring 10. A lamp post 28 and two support plates 20 are fixedly connected to the top wall of the rotating seat 7.

[0028] A third permanent magnet 35 is fixedly connected to the support plate 20. A slide block 14 is slidably connected to the support plate 20. A fourth gear 13 is rotatably connected to the slide block 14. A first permanent magnet 29 is fixedly connected to the slide block 14. The slide block 14 is connected to an electromagnet 31 via a second elastic element 30. The electromagnet 31 is fixedly connected to the support plate 20. A second rotating shaft 17 and a first rotating wheel 18 are rotatably connected to the support plate 20. A fifth gear 16 and the first rotating wheel 18 are fixedly connected to the second rotating shaft 17. A second rotating wheel 32 is rotatably connected to the support plate 20. The second rotating wheel 32 is connected to the first rotating wheel 18 via a transmission chain 19. Two or more connectors 23 are fixedly connected to the transmission chain 19. The connectors 23 have block grooves 24. The support block 21 is slidably connected to the inner wall of the block groove 24. The support block 21 is connected to the inner wall of the block groove 24 through the first elastic member 22. A second permanent magnet 34 is fixedly connected to the support block 21. Two or more pattern bodies 27 are connected to the pattern ring 25. The bottom wall of the pattern ring 25 has two ring grooves 26. One of the support blocks 21 on the left transmission chain 19 abuts against the inner wall of one of the ring grooves 26. One of the support blocks 21 on the right transmission chain 19 abuts against the inner wall of the other ring groove 26.

[0029] According to an optional embodiment of the present invention, the length of the left second rotating shaft 17 is longer than the length of the right second rotating shaft 17, and the length of the left first rotating shaft 15 is longer than the length of the right first rotating shaft 15.

[0030] According to an optional embodiment of the present invention, a lamp holder is provided inside the lamp post 28, and an LED bulb can be detachably installed on the lamp holder.

[0031] According to an optional embodiment of the present invention, the lamp post 28 has a through hole, through which the power cord passes and is electrically connected to the LED bulb.

[0032] According to an optional embodiment of the present invention, an aluminum heat sink is connected to the surface of the lamp post 28.

[0033] In one optional embodiment of the present invention, the outer diameter of the second gear 9 is smaller than the outer diameter of the first gear 6.

[0034] In one optional embodiment of the present invention, the motor 8 is a geared motor.

[0035] According to an optional embodiment of the present invention, the translucent fabric 3 is made of polyester.

[0036] According to an optional embodiment of the present invention, the material of the light-shielding cover 2 includes PVC.

[0037] According to an optional embodiment of the present invention, the base 1 is provided with a wireless module.

[0038] According to an optional embodiment of the present invention, the patterned ring 25 is made of a deformable material.

[0039] Implementation process:

[0040] Turning on the power illuminates the LED bulbs, causing the light column 28 to glow. The light from the light column 28 shines onto the translucent cloth 3. The pattern body 27 blocks the light, and the shadow of one of the pattern bodies 27 appears on the translucent cloth 3. The pattern body 27 can be, for example, as shown in the image. Figure 1 The elk pattern shown has different antler shapes on each pattern body 27. When the motor 8 is turned on, the second gear 9 rotates, which in turn drives the first gear 6, the rotating column 5, the rotating seat 7, the support plate 20, the pattern ring 25, the pattern body 27, and the third gear 12 to rotate. The third gear 12 revolves around the sun, so that the shadows of different pattern bodies 27 are presented one by one on the translucent cloth 3, which can show the audience the changing seasons of the elk antlers.

[0041] Pattern 27 can also be other shapes, such as patterns of different stages in the process of a tadpole evolving into a frog, or patterns of different stages in the process of human development, etc., without limitation here.

[0042] When the pattern ring 25 needs to be replaced, the two highest support blocks 21 are located above the light shield 2. Simply align the two ring grooves 26 on the new pattern ring 25 with the two highest support blocks 21 and insert them. The two support blocks 21 will support the inner wall of the ring grooves 26, thus supporting the pattern ring 25. There is no need to insert the pattern ring 25 into the light shield 2, which would cause alignment and connection difficulties. Activate the two electromagnets 31, causing them to generate a magnetic attraction between the electromagnets 31 and the permanent magnets 29. This causes the permanent magnets 29 and the slide block 14 to overcome the elastic force of the second elastic element 30 and move away from the electromagnets 31. After the fourth gear 13 moves, it meshes with the fifth gear 16 and the third gear 12. When one of the third gears 12 revolves, it will rotate due to its meshing with the gear ring 10, thereby driving the rotating rod 33 and the other third gear 12 to rotate. The fourth gear 13, the fifth gear 16, the second shaft 17, the first wheel 18, the transmission chain 19, and the second wheel 32 are driven to rotate, thereby causing the connector 23 and the support block 21 to rotate. The new pattern ring 25 moves down to the position of the pattern ring 25 to be replaced, completing the replacement. When the second permanent magnet 34 moves down to the same horizontal plane as the third permanent magnet 35, the third permanent magnet 35 magnetically attracts the second permanent magnet 34. The support block 21 overcomes the elastic force of the first elastic member 22 and moves away from the ring groove 26. The support block 21 releases the support of the pattern ring 25 to be replaced, and the pattern ring 25 to be replaced falls to the top wall of the rotating seat 7. The user can then take out the pattern ring 25 to be replaced through the part retrieval channel 4. The notch on the pattern ring 25 is made of a deformable material, allowing the pattern ring 25 to pass smoothly through the lamp post 28. The deformable material can be plastic.

[0043] After the two electromagnets 31 are de-energized, the slide block 14 can be reversed and reset under the elastic force of the second elastic element 30. The fourth gear 13 disengages from the fifth gear 16 and the third gear 12, the transmission chain 19 stops rotating, and the new pattern ring 25 maintains its current height.

[0044] This invention enables the shadows of pattern bodies 27 to be projected one by one onto the light-transmitting cloth 3 through the drive of the motor 8, allowing viewers to appreciate and learn. When the pattern ring 25 needs to be replaced, there is no need to insert the pattern ring 25 into the light-shielding cover 2, which would make installation difficult. The pattern ring 25 can be installed in a place with good visibility outside the light-shielding cover 2. The pattern ring 25 can be replaced and the pattern on the light-transmitting cloth 3 can be adjusted by the motor 8 and the drive of the electromagnet 31. The pattern ring 25 to be replaced can be quickly removed without disassembly, improving the convenience and efficiency of the replacement operation. There is no need to set up multiple motors 8 to drive the movement of two transmission chains 19.

[0045] The components, modules, mechanisms, and devices in this utility model that are not described in detail are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. An adjustable shadow light, characterized by, Includes a base (1) and a patterned ring (25), with a notch on the patterned ring (25). A light shield (2), a motor (8), and a gear ring (10) are fixedly connected to the top wall of the base (1). A part-retrieving channel (4) is provided on the light shield (2). A light-transmitting cloth (3) is fixedly connected to the light shield (2). A second gear (9) is fixedly connected to the rotor of the motor (8). A rotating column (5) is rotatably connected to the top wall of the base (1). A first gear (6) and a rotating seat (7) are fixedly connected to the rotating column (5). The second gear (9) and the first gear (6) Engagement: Two gear channels (11) are opened on the rotary seat (7). A rotating rod (33) is rotatably connected to the inner wall of one of the gear channels (11). The rotating rod (33) is rotatably connected to the inner wall of the other gear channel (11). Two third gears (12) are fixed on the rotating rod (33). The two third gears (12) are located in the two gear channels (11) respectively. One of the third gears (12) meshes with the gear ring (10). A lamp post (28) and two support plates (20) are fixed on the top wall of the rotary seat (7). A third permanent magnet (35) is fixedly connected to the support plate (20). A slide block (14) is slidably connected to the support plate (20). A fourth gear (13) is rotatably connected to the slide block (14). A first permanent magnet (29) is fixedly connected to the slide block (14). The slide block (14) is connected to an electromagnet (31) through a second elastic element (30). The electromagnet (31) is fixedly connected to the support plate (20). A second rotating shaft (17) and a first rotating wheel (18) are rotatably connected to the support plate (20). A fifth gear (16) and a first rotating wheel (18) are fixedly connected to the second rotating shaft (17). A second rotating wheel (32) is rotatably connected to the support plate (20). The second rotating wheel (32) is connected to the first rotating wheel (18) through a transmission chain (19). The transmission chain (19) is connected to two or more connecting parts (23), and the connecting parts (23) have a block groove (24). The supporting block (21) is slidably connected to the inner wall of the block groove (24). The supporting block (21) is connected to the inner wall of the block groove (24) through the first elastic part (22). The supporting block (21) is fixedly connected to the second permanent magnet (34). The pattern ring (25) is connected to two or more pattern bodies (27). The bottom wall of the pattern ring (25) has two ring grooves (26). One of the supporting blocks (21) on the left transmission chain (19) abuts against the inner wall of one of the ring grooves (26), and one of the supporting blocks (21) on the right transmission chain (19) abuts against the inner wall of the other ring groove (26).

2. The adjustable shadow light of claim 1, wherein, The fourth gear (13) is rotatably connected to the slide (14) via the first rotating shaft (15); one of the second rotating shafts (17) is longer than the other second rotating shaft (17), and one of the first rotating shafts (15) is longer than the other first rotating shaft (15).

3. The adjustable shadow light of claim 2, wherein, The lamp post (28) is equipped with a lamp holder, on which an LED bulb can be detachably installed.

4. The adjustable shadow light of claim 3 wherein, The lamp post (28) has a through hole, through which the power cord passes and is electrically connected to the LED bulb.

5. The adjustable shadow light of claim 4, wherein, The surface of the lamp post (28) is connected to an aluminum heat sink.

6. The adjustable shadow light of claim 5, wherein, The outer diameter of the second gear (9) is smaller than the outer diameter of the first gear (6).

7. The adjustable shadow light of claim 6 wherein, The motor (8) is a geared motor.

8. The adjustable shadow light of claim 7, wherein, The translucent fabric (3) is made of polyester.

9. An adjustable shadow puppet lamp according to claim 8, characterized in that, The material of the light-shielding cover (2) includes PVC.

10. The adjustable shadow light of any one of claims 1-9, wherein, The patterned ring (25) is made of a deformable material.