An automatic card delivery piano

By driving a motor in the mechanism to drive a multi-stage gear set to drive the conveyor wheel, the card is automatically dispensed, which solves the problem of cumbersome operation of children's toy electric pianos, improves the user experience and simplifies the maintenance process.

CN224523944UActive Publication Date: 2026-07-21陈创琛
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
陈创琛
Filing Date
2025-08-13
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

When children operate toy electric pianos, they need to manually control the cards, which makes the operation cumbersome and prone to misplacing or placing the cards, affecting the user experience.

Method used

The system employs a push mechanism, including a drive component and a rotation component, which uses a motor to drive a multi-stage gear set to drive the conveyor wheel, thereby achieving automatic card transfer. Combined with the hinged connection design between the lid and the bottom box, the operation process is simplified.

Benefits of technology

It enables automatic card delivery, simplifies operation for children, avoids jamming or misalignment, improves the user experience, and has a sturdy structure that is easy to maintain.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic card ejection piano, specifically relates to the technical field of children's toys, including the piano box body, box cover and push mechanism, the piano box body contains box cover and bottom box, the bottom box is swingingly connected with box cover below through the hinge, the inner wall center of bottom box is fixedly connected with the baffle, the top of bottom box is reserved to have the paper slot above the baffle, the side of bottom box is provided with the paper slot, the card is placed above the paper slot, the bottom box below is provided with push mechanism. Meanwhile, the push mechanism adopts detachable design, not only firm installation, but also convenient later maintenance or replacement parts, prolong the service life of toy, moreover, the modular design of box cover gives consideration to functionality and security, and the top cover, key body, circuit board and other components are connected through snap connection, compact structure and convenient assembly.
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Description

Technical Field

[0001] This utility model relates to the field of children's toy technology, and more specifically, to an automatic card-dispensing piano. Background Technology

[0002] Toy electric pianos are electronic musical instrument toys designed specifically for children, but they are difficult for children to operate during use;

[0003] As disclosed in publication number CN201711072873.3, a children's toy piano includes: an outer shell, a keyboard assembly, a control chip, a storage chip, and an audio output assembly. The keyboard assembly is disposed on the outer surface of the outer shell. Each key in the keyboard assembly is equipped with a human body capacitance detection pad, which is connected to the control chip to allow the control chip to identify the key or combination pressed by the user. The control chip is electrically connected to the storage chip and the audio output assembly. The control chip identifies the key or combination pressed by the user on the keyboard assembly, reads the corresponding audio file from the storage chip, and then outputs it to the audio output assembly for playback. This design allows children to conveniently learn piano, reducing the equipment costs associated with piano lessons.

[0004] When children play with toy electric pianos, they often need to manually control them and pop out cards. The operation process is relatively cumbersome and may be difficult for younger children, thus affecting the user experience. In addition, during the replacement process, cards may be placed crookedly or incorrectly, affecting playing and daily use.

[0005] Therefore, an automatic card-dispensing piano is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic card-dispensing piano to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic card-dispensing piano, comprising a piano case and a push mechanism, wherein the piano case includes a lid and a bottom box, and the push mechanism is disposed below the bottom box, the push mechanism comprising a drive component and a rotating component, and the drive end of the drive component is connected to the rotating component.

[0008] Preferably, the drive assembly includes a positioning housing, a motor, a first gear set, and a second gear set. The motor is connected through the side of the positioning housing, and the drive end of the motor is located inside the positioning housing. The drive end of the motor is meshed with the first gear set, and the side of the first gear set is meshed with the second gear set.

[0009] Preferably, the rotating assembly includes a docking gear, a first conveying wheel, a docking rod, and a second conveying wheel. The docking rod is fixedly connected to the center of the docking gear. The first conveying wheel and the second conveying wheel are respectively installed on the outer diameter surface of the docking rod. A rotating ring is installed at the end of the docking rod away from the docking gear.

[0010] Preferably, the second gear set and the docking gear are meshed together. When the motor is driven, the driving end of the motor drives the first gear set to rotate, the first gear set drives the second gear set to rotate, and the second gear set drives the docking gear to rotate, causing the first and second conveying wheels on the docking rod to rotate.

[0011] Preferably, a bottom box is movably connected to the bottom of the box cover via a hinge. An isolation plate is fixedly connected to the center of the inner wall of the bottom box. A paper slot is reserved above the isolation plate in the bottom box. A paper outlet slot is provided on the side of the bottom box. A card is placed above the paper slot. When the driving component drives the rotating component to rotate, it drives the card on the paper slot to move along the paper outlet slot.

[0012] Preferably, the bottom box has a placement cavity located below the isolation plate, the pushing mechanism is placed in the placement cavity of the bottom box, and a sealing plate is provided below the pushing mechanism.

[0013] Preferably, the box cover includes a top cover, piano key bodies, a circuit board, buttons, a bottom cover, and a paper slot. The piano key bodies are engaged with the bottom of the top cover, the circuit board is electrically connected to the bottom of the piano key bodies, the buttons are electrically connected to the side of the circuit board, the bottom cover is engaged with the bottom of the circuit board, and a paper slot is provided at the top of the top cover.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] Compared with existing technologies, this automatic card-dispensing piano features a hinged design for its case, connecting the lid and base. This design ensures overall stability and facilitates easy opening and closing, allowing children to use it independently. An internal partition divides the space, with the upper paper tray and side paper dispenser forming a card delivery path. This, combined with a lower pushing mechanism, enables automatic card delivery without manual adjustment. Furthermore, the motor within the pushing mechanism drives the delivery wheel through a multi-stage transmission via a first and second gear set, smoothly moving the cards and preventing jamming or misalignment. The pushing mechanism also features a detachable design, ensuring secure installation and facilitating future maintenance or component replacement, extending the toy's lifespan. Finally, the modular design of the lid balances functionality and safety. The top cover, keys, circuit board, and other components are connected via interlocking mechanisms, resulting in a compact structure that is easy to assemble. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the box lid structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the paper feeding trough structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the propulsion mechanism of this utility model.

[0020] Figure 5 This is a schematic diagram of the drive component structure of this utility model.

[0021] Figure 6 This is a schematic diagram of the card structure of this utility model.

[0022] Figure 7 This is a schematic diagram of the bottom box structure of this utility model.

[0023] Figure 8 This is a schematic diagram of the connecting rod structure of this utility model.

[0024] Figure 9 This is an exploded view of the box lid of this utility model.

[0025] The attached figures are labeled as follows: 1. Piano case body; 2. Case lid; 3. Bottom box; 4. Paper tray; 5. Paper outlet tray; 6. Card; 7. Pushing mechanism; 8. Sealing plate; 10. Drive assembly; 11. Rotating assembly; 12. Positioning shell; 13. Motor; 14. First gear set; 15. Second gear set; 16. Connecting gear; 17. First conveying wheel; 18. Connecting rod; 19. Second conveying wheel; 20. Rotating ring; 21. Isolation plate; 22. Placement cavity; 23. Top cover; 24. Key body; 25. Circuit board; 26. Button; 27. Bottom cover; 28. Card tray. Detailed Implementation

[0026] 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.

[0027] Example

[0028] As attached Figures 1 to 9The illustrated automatic card-dispensing piano includes a case body 1 and a push mechanism 7. The case body 1 comprises a lid 2 and a base 3. The push mechanism 7 is located below the base 3 and includes a drive component 10 and a rotating component 11. The drive end of the drive component 10 is connected to the rotating component 11. The lid 2 is hinged to the base 3 via a hinge made of wear-resistant ABS material, ensuring a stable connection and allowing the lid 2 to open and close from 0-120° for easy opening and closing by children. A rigid partition 21 at the center of the inner wall of the base 3 divides the base 3 into upper and lower functional areas. A paper slot 4 is specifically provided above the partition 21, which can hold a stack of standard-sized cards 6. The paper tray has protrusions on both sides to effectively prevent the cards 6 from tipping over during movement. The paper outlet tray 5 is opened on the side of the bottom box 3, corresponding to the position of the paper tray 4. When the cards 6 are neatly stacked in the paper tray 4, the bottom card 6 will naturally make contact with the bottom pushing mechanism 7, preparing for subsequent automatic paper feeding. The sealing plate 8 is made of high-strength engineering plastic injection molding, with a rod vertically set on each of the four sides of the top, matching the pre-set insertion holes on the inner wall of the placement cavity 22 of the bottom box 3. The space between the four sets of rods can just accommodate the drive component 10. This design not only allows the pushing mechanism 7 to be installed stably, but also has a detachable function. When it is necessary to replace the battery or perform simple maintenance, the entire mechanism can be easily removed by separating the rods.

[0029] In a preferred embodiment, the drive assembly 10 includes a positioning shell 12, a motor 13, a first gear set 14, and a second gear set 15. The motor 13 is connected through the side of the positioning shell 12, and the drive end of the motor 13 is located inside the positioning shell 12. The drive end of the motor 13 is meshed with the first gear set 14, and the side of the first gear set 14 is meshed with the second gear set 15. The drive assembly 10 of the push mechanism 7 is the power core of the push mechanism 7. The first gear set 14 is composed of gears with different numbers of teeth. The initial power transmission and speed adjustment are realized through the meshing between the gears. Its side meshes with the second gear set 15, which is composed of gears. Both the first gear set 14 and the second gear set 15 are movably connected to the positioning shell 12 to realize the connection between the first gear set 14 and the second gear set 15.

[0030] In a preferred embodiment, the rotating assembly 11 includes a docking gear 16, a first conveying wheel 17, a docking rod 18, and a second conveying wheel 19. The docking rod 18 is fixedly connected to the center of the docking gear 16. The first conveying wheel 17 and the second conveying wheel 19 are respectively mounted on the outer diameter surface of the docking rod 18. A rotating ring 20 is mounted on the end of the docking rod 18 away from the docking gear 16. The rotating assembly 11 is responsible for converting power into conveying action. Its core is the docking gear 16, which meshes with the output end of the second gear set 15. At the center of the docking gear 16, the first conveying wheel 17 and the second conveying wheel 19 are respectively mounted on the docking rod 18 via the docking rod 18. The outer layer of the two conveying wheels is covered with a layer of silicone material, and the surface is covered with fine anti-slip textures, which can generate sufficient friction to move the card 6 during rotation. A rotating ring 20 is also mounted on the end of the docking rod 18 away from the docking gear 16, which cooperates with the groove on the inner wall of the base box 3 to ensure stable operation of the entire rotating assembly 11.

[0031] In a preferred embodiment, the second gear set 15 and the docking gear 16 are meshed together. When the motor 13 is driven, the driving end of the motor 13 drives the first gear set 14 to rotate, the first gear set 14 drives the second gear set 15 to rotate, and the second gear set 15 drives the docking gear 16 to rotate, causing the first conveying wheel 17 and the second conveying wheel 19 on the docking rod 18 to rotate. When the drive assembly 10 is working, the driving end of the motor 13 drives the first gear set 14 to start rotating. Through the meshing transmission between the gears, the first gear set 14 transmits power to the second gear set 15, and the second gear set 15 then drives the docking gear 16 to rotate synchronously, thereby causing the first conveying wheel 17 and the second conveying wheel 19 on the docking rod 18 to rotate at the same speed. The clamping force formed by the two conveying wheels can just drive the card 6 to move smoothly along the paper output slot 5. The entire conveying process is smooth and uniform, avoiding the card 6 from getting stuck or skewed.

[0032] In a preferred embodiment, a bottom box 3 is movably connected to the bottom of the cover 2 via a hinge. An isolation plate 21 is fixedly connected to the center of the inner wall of the bottom box 3. A paper slot 4 is reserved above the isolation plate 21 in the bottom box 3. A paper outlet slot 5 is provided on the side of the bottom box 3. A card 6 is placed above the paper slot 4. When the drive component 10 drives the rotating component 11 to rotate, it drives the card 6 on the paper slot 4 to move along the paper outlet slot 5. The bottom box 3 has a placement cavity 22 below the isolation plate 21 that perfectly matches the size of the push mechanism 7. A layer of sound-absorbing cotton is pasted on the inner wall of the cavity, which can effectively reduce the noise when the push mechanism 7 is running. After the push mechanism 7 is placed in this cavity, it is connected to the bottom box 3 through the rod, which makes it convenient for parents to clean and maintain.

[0033] In a preferred embodiment, the bottom box 3 has a placement cavity 22 located below the partition plate 21. The pushing mechanism 7 is placed inside the placement cavity 22 of the bottom box 3. A sealing plate 8 is located below the pushing mechanism 7. The lid 2, as the main part for interaction with children, has a top cover 23 made of food-grade PP material with a smooth, rounded surface. It is tightly engaged with the piano key body 24 via a snap-fit ​​structure. The piano key body 24 contains multiple colored keys, each suitable for children's small hands. Below the piano key body 24... Electrical connection is achieved through gold-plated contacts to the circuit board 25. The side of the circuit board 25 is electrically connected to the button 26. The cover 2 includes a top cover 23, a key body 24, a circuit board 25, a button 26, a bottom cover 27, and a card slot 28. The bottom of the top cover 23 is engaged with the key body 24, and the bottom of the key body 24 is electrically connected to the circuit board 25. The side of the circuit board 25 is electrically connected to the button 26. The bottom of the circuit board 25 is engaged with the bottom cover 27. The top of the top cover 23 is provided with a card slot 28.

[0034] In this embodiment, the motor 13 and the first gear set 14 are commercially available devices known to those skilled in the art. They can be customized or selected according to actual needs. Here, we are only using them without making any structural or functional improvements, so we will not go into detail here.

[0035] The working process of this utility model is as follows: During use, the lid 2 of the piano case 1 is opened, exposing the paper slot 4 of the bottom box 3. Then, the arranged cards 6 are placed inside the paper slot 4. When it is necessary to play the lid 2, the button 26 is pressed, which drives the drive component 10 in the push mechanism 7. The drive component 10 drives the first conveyor wheel 17 and the second conveyor wheel 19 in the push component to rotate, thereby bringing out the card 6 that is in contact with the first conveyor wheel 17 and the second conveyor wheel 19 along the paper outlet slot 5. The card 6 is driven by the first conveyor wheel 17 and the second conveyor wheel 19 to move. After the card 6 moves to the end, the card 6 stops moving. Then, the card 6 is pulled out and locked inside the card slot 28. Then, the playing is performed according to the prompts on the card 6.

Claims

1. An automatic card-dispensing piano, comprising a piano case (1) and a push mechanism (7), characterized in that: The piano case (1) includes a lid (2) and a bottom box (3). A pushing mechanism (7) is provided below the bottom box (3). The pushing mechanism (7) includes a driving component (10) and a rotating component (11). The driving end of the driving component (10) is connected to the rotating component (11).

2. The automatic card-dispensing piano according to claim 1, characterized in that: The drive assembly (10) includes a positioning shell (12), a motor (13), a first gear set (14), and a second gear set (15). The motor (13) is connected through the side of the positioning shell (12). The drive end of the motor (13) is located inside the positioning shell (12). The drive end of the motor (13) is meshed with the first gear set (14), and the side of the first gear set (14) is meshed with the second gear set (15).

3. The automatic card-dispensing piano according to claim 1, characterized in that: The rotating assembly (11) includes a docking gear (16), a first conveying wheel (17), a docking rod (18), and a second conveying wheel (19). The docking gear (16) is fixedly connected to the center of the docking rod (18). The first conveying wheel (17) and the second conveying wheel (19) are respectively installed on the outer diameter surface of the docking rod (18). A rotating ring (20) is installed at the end of the docking rod (18) away from the docking gear (16).

4. The automatic card-dispensing piano according to claim 2, characterized in that: The second gear set (15) and the docking gear (16) are meshed together. When the motor (13) is driven, the driving end of the motor (13) drives the first gear set (14) to rotate. The first gear set (14) drives the second gear set (15) to rotate. The second gear set (15) drives the docking gear (16) to rotate, causing the first conveying wheel (17) and the second conveying wheel (19) on the docking rod (18) to rotate.

5. The automatic card-dispensing piano according to claim 1, characterized in that: The bottom box (3) is connected to the bottom of the cover (2) by a hinge. An isolation plate (21) is fixedly connected to the center of the inner wall of the bottom box (3). A paper slot (4) is reserved above the isolation plate (21) of the bottom box (3). A paper outlet slot (5) is provided on the side of the bottom box (3). A card (6) is placed above the paper slot (4). When the driving component (10) drives the rotating component (11) to rotate, it drives the card (6) on the paper slot (4) to move along the paper outlet slot (5).

6. The automatic card-dispensing piano according to claim 1, characterized in that: The bottom box (3) is provided with a placement cavity (22) below the isolation plate (21), and the pushing mechanism (7) is placed in the placement cavity (22) of the bottom box (3). A sealing plate (8) is provided below the pushing mechanism (7).

7. The automatic card-dispensing piano according to claim 1, characterized in that: The cover (2) includes a top cover (23), piano keys (24), a circuit board (25), a button (26), a bottom cover (27), and a card slot (28). The piano keys (24) are engaged and connected to the bottom of the top cover (23). The circuit board (25) is electrically connected to the bottom of the piano keys (24). The button (26) is electrically connected to the side of the circuit board (25). The bottom cover (27) is engaged and connected to the bottom of the circuit board (25). The card slot (28) is provided at the top of the top cover (23).