Liquid output and electric toy linkage device applied to learning machine and amusement machine

Abstract

The application discloses a liquid output and electric toy linkage device applied to learning machines and game machines, relates to the field of micro fluid control and children's intelligent interaction, and comprises a host computer, a liquid container, a signal triggering assembly, an interaction component and a control module. The core is integrated with four functions of sound sensing, signal counting, liquid quantitative output and electric toy linkage, and the device can automatically operate without external equipment. The device contains single-person and double-person configurations. The single-person type is suitable for individual learning motivation, and the double-person type is designed in a double-channel symmetrical mode, shares the liquid container, and independently sets the component boxes, the triggering assembly and the interaction component on both sides, is free of electrical connection, and is suitable for double-person combat. The control module takes a circuit board integrated with CD4518, NE555 and L298N chips as the core. After the threshold value is counted, the liquid (food-grade material) is synchronously driven out by a water pump, and the toy sound and light jump (spring buffer is less than 3cm) is driven, and is reset after time delay. The device fills the blank of children's scene interaction, improves children's initiative through a behavior-reward closed loop, and is universal in core components, low in cost and easy to operate.

Description

Technical Field

[0001] This invention relates to the interdisciplinary field of microfluidic control and children's intelligent interactive devices, and discloses a liquid output and electric toy linkage device for use in learning machines and amusement machines. This device integrates sound sensor triggering, signal counting, quantitative liquid delivery, and sound, light, and motion-linked feedback functions with electric toys. It is specifically designed for learning incentive scenarios (such as learning machine quiz rewards and language learning follow-up feedback) and play interaction scenarios (such as amusement machine obstacle course competitions and physical exercise counting rewards) for children aged 3-12. Through a synergistic mechanism of "liquid reward output + multi-dimensional toy feedback," it constructs a closed-loop incentive system of "behavior-reward," enhancing children's initiative in participating in learning or physical exercise, and filling the application gap of existing microfluidic control devices in children's scenario-based interactive applications. Background Technology

[0002] Currently, the core technology of mini electric water pumps on the market (such as the "portable mini water pump" disclosed in Chinese utility model patent CN202320123456.7) is "to achieve water pumping by driving an impeller with a miniature motor, and only includes a pumping body, a power interface, and a control switch." Its technical design focuses on "basic pumping function" and does not consider the needs of children's interactive scenarios, thus exhibiting the following core defects:

[0003] 1. Technical functional defects

[0004] It only has a single function of "pumping water when powered on and stopping when powered off". It does not integrate a sensor module and a counting module, so it cannot respond to external trigger signals (such as the correct answer instructions of a learning machine or the operation signals of an amusement machine). It cannot dynamically adjust the pumping action according to the child's learning or play behavior. Furthermore, it lacks any electric toy linkage design and interactive feedback such as sound, light, and motion, and cannot form a "behavior-reward" incentive loop, making it difficult to stimulate children's interest in continuous participation.

[0005] 2. Scene adaptation defects

[0006] Most existing products are industrial / household models designed for adults, with conventional rectangular or cylindrical shapes and no child-friendly cartoon designs. Furthermore, they lack a combined reward mechanism of "liquid output + toy linkage" designed for children's learning / play scenarios. This means they cannot be used as reward devices for answering questions in learning machines (such as dispensing a drink and triggering toy interaction after a child answers a question correctly), nor as feedback devices for competitive play in amusement machines (such as providing real-time reward feedback when two children compete). They are not suitable for the scenario-based application of children's equipment such as learning machines and amusement machines.

[0007] 3. Cost defects

[0008] To achieve the complete "trigger-pump-toy feedback" process using existing products, additional external sensors (such as sound sensors), counters (such as independent digital tube counters), and electric toy controllers are required. This not only results in a bulky overall device (approximately three times the size of the single-user device of this invention) and complex assembly, but also presents signal incompatibility issues between devices (e.g., analog sensor signals cannot directly match the digital drive signals of the pump and the toy), necessitating the addition of signal conversion modules. This significantly increases the cost of use (the cost of the existing "pump + external sensor + independent counter + toy controller" combination is approximately 2.5 times that of the single-user device of this invention) and operational difficulty, making it unsuitable for independent use by children. When children operate the device independently, the complex wiring can easily lead to malfunctions, posing safety hazards such as short circuits and electric shocks.

[0009] The root cause of the above defects is that the existing technology of mini electric water pumps is limited to a "single water pumping tool" and does not deeply integrate the "water pumping function" with the "children's interactive incentive needs". It lacks an integrated design of "sensing-counting-liquid output-electric toy linkage" and cannot meet the technical requirements of children's equipment such as learning machines and amusement machines for "functional integration, scene customization and easy operation". Summary of the Invention

[0010] Purpose of the invention

[0011] To address the technical shortcomings of existing miniature electric water pumps, such as "limited functionality, lack of sensor counting module, absence of electric toy linkage design, unsuitability for children's interactive scenarios, and low integration," the specific objectives of this invention are as follows:

[0012] 1. A liquid output and electric toy linkage device is provided, which integrates the functions of "sound sensing - signal counting - liquid quantitative output - electric toy linkage feedback", realizing the full-process automation of "external signal triggering → automatic counting → delayed liquid dispensing → toy interactive feedback → reset standby", without the need for additional external equipment, and is suitable for learning machine and amusement machine scenarios.

[0013] 2. Based on a unified technical concept, two configurations are designed: a single-player configuration and a two-player configuration. The single-player configuration is suitable for individual learning incentive scenarios for children (such as answering questions by themselves using the learning machine), while the two-player configuration is suitable for two-player amusement and battle scenarios (such as two children competing on an amusement machine). This improves the scenario coverage of the device, and the two configurations can be quickly switched by changing the component boxes, enhancing versatility.

[0014] 3. Ensure the device meets child safety and user-friendliness standards: liquid contact parts are made of food-grade materials (e.g., liquid containers are made of food-grade PET material), circuit modules have overload and charge / discharge protection (e.g., lithium batteries have protection boards), and electric toys have spring buffer structures (jump amplitude ≤3cm) to prevent children from getting injured while operating them; at the same time, the design incorporates a cartoonish appearance and sound and light feedback to balance functionality and user experience.

[0015] Technical solution

[0016] This invention is based on a unified technical concept of "sensor triggering - counting control - multi-component linkage", and proposes two parallel inventions - a single-person liquid output and electric toy linkage device and a double-person liquid output and electric toy linkage device. The core components and control logic of the two devices are the same, and the only difference is in the number and layout of the components. The specific technical solutions are as follows:

[0017] 1. Overall Technical Architecture (Universal for both devices)

[0018] Both devices include five core components, and the composition, function, and connection logic of each component are unified, as detailed below:

[0019] -Main Unit: As the core support and power control unit of the device, it consists of a component box, a liquid container and fixing plate, a cup placement plate, an electric toy placement plate, a miniature water pump, a control circuit board, and a lithium battery. The component box is a hollow rectangular structure (made of ABS engineering plastic, 2mm thick, drop-resistant), with a removable cover at the rear (for easy maintenance of internal components); the liquid container fixing plate is a circular flat structure with two plastic clips on the surface for securing the liquid container; the cup placement plate and the electric toy placement plate are both rectangular plastic plates, welded to the front and one side of the component box respectively, for placing cups and securing electric toys.

[0020] - Liquid Container: Used for storing liquids (such as beverages and juices), featuring a transparent gourd-shaped cartoon design (appealing to children's aesthetics), and made of food-grade PET (compliant with GB 4806.7-2016 food safety standards). The container has a screw-on lid (with a silicone sealing ring for leak prevention), and a cleaning button (touch-sensitive, for rinsing the pipes) on the inside of the lid. A plastic lock connects the container to the lid, with a miniature combination lock (3-digit code to prevent accidental opening by children). The bottom of the container has one (single-person) or two (double-person) water outlet pipes (8mm inner diameter, made of food-grade silicone tubing), with a pagoda connector at the end of each outlet pipe for connecting to the inlet of a miniature water pump.

[0021] - Signal Trigger Component: Used to receive external trigger signals, including a microphone assembly and a terminal wire (1.5m in length, one end is a PH2.0 terminal head, connecting to the terminal block of the control circuit board; the other end is soldered to the microphone assembly). This component can realize two triggering methods: one is sound triggering (such as children's answering sounds, amusement machine operation sounds), and the other is command triggering (receiving TTL level signals from the learning machine / amusement machine through the terminal wire).

[0022] - Interactive components: These components allow children to interact with the toys, including a cup and an electric toy. The cup is made of food-grade PP material (200ml capacity, 6cm diameter, compatible with a water outlet with a bend). The electric toy is in cartoon shape (e.g., a cartoon dog, a cartoon cat, a cartoon car), and contains a miniature motor (5V operating voltage), two red and two blue LEDs, a horn, and a spring (made of stainless steel) at the tail. A circular hook is welded to the end of the spring for attaching to the fixed post on the electric toy's mounting plate, enabling the toy to jump. The electric toy is connected to the toy drive terminal block of the control circuit board via electronic wires.

[0023] - Control Module: As the "brain" of the device, it is responsible for signal processing, counting, and drive control. Its core is the control circuit board (15cm x 3cm, PCB thickness 1.6mm). The circuit board integrates a power management module (TP4056 chip for intelligent lithium battery charging management), a sound sensor module (with a built-in adjustable resistor to set a sensitivity threshold; when the signal reaches the threshold, it outputs a switch signal), a delay circuit module (composed of an NE555 chip, resistors, and capacitors; preset delay time 5-30 seconds), and a motor drive module (L298N chip, output...). The control module includes a 5V drive current (maximum 2A), a counting module (CD4518 dual BCD counter chip + CD4511 BCD-7-segment decoder chip, enabling 0-99 counting and decoding), a digital tube (2-digit common cathode 7-segment display, red display, real-time display of the count value), a start button, a power switch (both touch-sensitive, used to start the device and control power supply respectively), a charging port female connector (DC-005 model, 5V input voltage), and various terminal female connectors (signal input terminal connector, toy drive terminal connector, water pump terminal connector, lithium battery terminal connector). Additionally, the control module includes an 18650 lithium battery (2000mAh capacity, 5V voltage, with charge / discharge protection board), fixed inside the component box by a plastic bracket, and connected to the power input terminal of the control circuit board.

[0024] 2. Single-person liquid dispensing and electric toy linkage device (single-channel configuration)

[0025] The single-user device is designed as a "single component, single path" device, suitable for use by only one child. The specific structure and configuration are as follows:

[0026] - Component Quantity and Layout: The main unit contains one component box. Inside, on the left side, a miniature water pump (DC50E model, working voltage 5V, rated flow rate 1.5L / min, head 1.5m) is fixed by a plastic bracket. Inside, on the right side, a control circuit board and a lithium battery are fixed (the control circuit board is located in front of the lithium battery, with a 2cm gap to prevent interference). A circular liquid container fixing plate is welded to the rear. A cup placement plate is welded to the front. An electric toy placement plate is welded to the right side wall (with a fixing post welded to the surface).

[0027] - Interactive component configuration: Includes 1 set of signal trigger components (1 sound sensor module, 1 1.5m long terminal wire), 1 cup (200ml capacity), 1 electric toy (cartoon dog shape) and cleaning button.

[0028] -Core Connections: The liquid container is secured by a clip-on mounting plate, and the lower water outlet pipe is connected to the inlet of a miniature water pump via a pagoda connector; the outlet of the miniature water pump is connected to the L-shaped water outlet bend at the top of the component box via a food-grade silicone tube (the outlet is directly opposite the center of the cup placement plate, 4cm from the plate surface); the control circuit board is mounted on the front of the component box, and the digital tube, charging socket, terminal block, power switch, and start button all protrude outward through the pre-drilled holes in the component box; the electric toy is hooked onto the mounting post of the placement plate via a tail spring, and the power cord is connected to the toy drive terminal block of the control circuit board.

[0029] 3. Dual-person liquid output and electric toy linkage device (dual-channel symmetrical configuration)

[0030] The dual-user device features a symmetrical "dual-component, dual-pathway" design, suitable for simultaneous use by two children. It allows for independent triggering, independent liquid dispensing, and independent feedback. The specific structure and configuration are as follows:

[0031] - Component Quantity and Layout: The main unit contains two identical component boxes, fixed to the front and rear of the main unit frame respectively (30cm apart, symmetrically distributed); a common circular liquid container fixing plate is welded to the middle of the frame (the center of the circle is located on the line connecting the centers of the two component boxes); a common electric toy plate is welded to the right side wall of the two component boxes (two electric toy placement plates are welded to the surface, 10cm apart, each with a fixing post); the internal layout of each component box is the same as the single-person model (a miniature water pump is fixed on the left, and a control circuit board and lithium battery are fixed on the right), and the two control circuit boards are connected by a 15cm long electronic wire (AWG24 specification, 12C communication protocol) to achieve synchronized counting data and avoid counting conflicts when two people use it.

[0032] - Interactive component configuration: Includes 2 sets of signal trigger components (2 microphone components, 2 1.5m long terminal cables), 2 cups (200ml capacity each), 2 electric toys (1 cartoon dog shape each) and cleaning button.

[0033] -Core Connections: The liquid container has two water outlet pipes (3cm apart) at the bottom, which are connected to the inlets of the miniature water pumps in the two component boxes respectively; the water outlet of the miniature water pump in each component box is connected to its respective water outlet bend (facing its respective cup placement plate) through a silicone tube; the two electric toys are respectively hung on the fixed posts of the common board and connected to the control circuit boards of the corresponding component boxes; the digital tubes, start buttons, and power switches of the two control circuit boards protrude from the front of their respective boxes for easy independent operation; the counting data is synchronized through the I2C bus (synchronization signal transmission delay ≤10ms) to ensure fairness in two-player battles.

[0034] 4. Core operating logic (applicable to both devices)

[0035] The control logic of the two devices is completely identical, both following the process of "signal input → processing → execution → reset", as follows:

[0036] 1. Standby mode: After pressing the power switch, press the green start button to enter the signal receiving ready state, and the digital tube will continue to display "00".

[0037] 2. Signal Triggering and Processing: External signals (sound signals or command signals) are transmitted to the sound sensor module through the microphone assembly or terminal wire; when the signal strength reaches the preset threshold, the module outputs a switching electrical signal, which is transmitted to the input terminal of the oscillation circuit of the counting module as a counting trigger signal.

[0038] 3. Counting and display: The CD4518 chip counts the input signals, and the CD4511 chip converts the counting result (BCD code) into a seven-segment display signal to drive the digital tube to display the count value in real time (the count increments by 1 for each signal received, with a range of 00-99).

[0039] 4. Threshold Trigger: When the count value reaches the preset threshold (10 times), the CD4518 chip's carry terminal outputs a high level, which is transmitted to the motor drive module via the 4148 switching diode (unidirectional transmission, anti-reverse current) to trigger its start.

[0040] 5. Linked Execution and Delay: The motor drive module synchronously drives the miniature water pump and electric toy, and supplies power to the delay circuit module; the delay circuit module outputs a high level, one path of which is transmitted to the input terminal of the motor drive module through the 4148 diode to maintain the drive state; the other path is transmitted to the clear terminal of the counting module (CD4518 chip characteristic: when the clear terminal is high level, the clear operation is performed).

[0041] 6. Drive execution: The motor drive module outputs a 5V drive current. One path drives the micro water pump to operate, and the liquid flows from the container outlet pipe → water pump → outlet bend pipe → cup to achieve liquid output; the other path drives the electric toy, and the internal motor drives the eccentric wheel to rotate (achieving jumping action), the LED beads flash, and the speaker emits cartoon sound effects (lasting 2 seconds each time, with a 1-second interval, for a total of 3 times).

[0042] 7. Reset Standby: After the 10-second delay, the output level of the delay circuit module flips from high level to low level, the motor drive module stops outputting current, and the water pump and electric toy stop working; at the same time, the CD4518 chip count is cleared to zero, the digital tube displays "00", and the device returns to standby state, waiting for the next trigger.

[0043] This invention provides a liquid output and electric toy linkage device for use in learning machines and amusement machines, including single-player and double-player models, both of which have the same core components and control logic; the device consists of a main unit, a liquid container, a signal triggering component, an interactive component, and a control module.

[0044] The main unit includes a component box, a liquid container fixing plate, a cup placement plate, an electric toy placement plate, a miniature water pump, a control circuit board, and a lithium battery; the signal triggering component includes a microphone component and terminal wires, supporting sound triggering or TTL level command triggering; the interactive component includes a cup and an electric toy, the electric toy is connected to the toy drive terminal block, and can synchronize with the miniature water pump to achieve sound, light, and jumping linkage feedback.

[0045] The control circuit board integrates a power management module, a sound sensor module, a counting module, a delay circuit module, and a motor drive module, all electrically connected to each other. The counting module includes a CD4518 dual BCD counter and a CD4511 decoder chip. The delay circuit module uses an NE555 chip to form a monostable circuit. The circuit board is equipped with a digital tube, a power switch, a start button, a charging port socket, and various terminal sockets. Some wire harnesses and connectors are led out through the component housing. The lithium battery powers all modules of the machine.

[0046] Workflow: External sound or command signals are input through the signal triggering component, and the counting module completes the counting accumulation; when the preset threshold is reached, the motor drive module simultaneously drives the micro water pump to output liquid and link with the electric toy; after the delay ends, the execution component stops, the counting module is reset to zero, and the device returns to standby mode.

[0047] The single-player model features a single component box, a single miniature water pump, and a single set of signal triggering and interaction components. The double-player model features two symmetrical component boxes, two miniature water pumps, and two sets of signal triggering and interaction components, sharing a liquid container. Each side can independently complete signal acquisition, counting, liquid dispensing, and toy linkage. The circuit boards on both sides can communicate via electronic lines.

[0048] The liquid container, tubing, and cup are made of food-grade materials; the circuitry has lithium battery charging and discharging protection and overload protection; the liquid container lid has a cleaning button that allows manual control of the water pump to flush the tubing.

[0049] Beneficial effects

[0050] Compared with existing technologies (conventional miniature electric water pumps, stand-alone children's toys), the beneficial effects of this invention are as follows:

[0051] 1. Functional Integration and Innovation, Breaking Through Technical Limitations: For the first time, this device integrates four major functions—sound sensing, signal counting, liquid quantitative output, and electric toy linkage—into one unit, overcoming the shortcomings of existing miniature water pumps that are "single-function and lack interaction." It achieves full-process automation without the need for additional external equipment. High integration and small size (the single-user main unit measures 25cm × 15cm × 12cm, only 1 / 3 the size of existing "water pump + external equipment" combinations) make it suitable for desktop use in educational machines and amusement machines.

[0052] 2. Strong scene adaptability, covering diverse needs: Based on a unified technical concept, two configurations are designed. The single-player type can be used as a learning machine to reward answering questions (e.g., one correct answer counts as one point, and after 20 points, a drink is dispensed and the toy is triggered). The two-player type can be used as a game machine to provide feedback for battles (e.g., the first person to reach 10 points in a competition receives a reward). The two configurations can be switched by changing the parts box, making them highly versatile and covering learning and play scenarios for children aged 3-12.

[0053] 3. Child-friendly design, balancing safety and experience: Liquid contact parts are made of food-grade materials, meeting food safety standards; the circuit module has overload and charge / discharge protection to avoid short circuit and overcharge risks; the electric toy's spring buffer structure ensures a bounce amplitude of ≤3cm, preventing bumps; the combination lock prevents accidental opening of the container, and the cleaning button allows for one-button flushing of the pipes (pressing the button causes the water pump to run for 30 seconds), ensuring hygiene and safety; the cartoon shapes and sound and light feedback conform to children's aesthetics and interaction habits, enhancing their interest in using the toy.

[0054] 4. High technical feasibility and easy production and promotion: The core components (CD4518 chip, NE555 chip, sound sensor, and miniature water pump) are all common and standardized products in the market, with low procurement costs (the cost of a single unit for a single person can be controlled within 100 yuan); the circuit connection follows general electronic specifications, and those skilled in the art can complete the assembly and debugging based on the chip datasheet; the components adopt a modular design (the control circuit board and miniature water pump can be disassembled independently), which facilitates mass production and later maintenance.

[0055] 5. Easy to operate and lowers the barrier to entry: Simply press the power switch or start button to start the device. The digital tube displays the count intuitively, without complicated settings. The dual-person independent operation design allows two children to control their own devices and view the counts without adult assistance, making it suitable for children to use independently. Attached Figure Description

[0056] This invention provides eight accompanying drawings of a liquid output device and an electric toy linkage mechanism for use in learning machines and amusement machines. The drawings aim to clearly demonstrate the overall structure of the device, the layout of core components, the connection relationships between components, and the key details of the "liquid output-electric toy linkage." The specific view orientation, content, and technical relevance of each drawing are as follows:

[0057] 1. Figure 1 Overall front view of the single-person liquid output and electric toy linkage device

[0058] The view is taken from the front of the device, fully showcasing the assembly of the single-person unit. The diagram includes the main unit (composed of component box 3, electric toy placement plate 2, and cup placement plate 4), liquid container 13, cup 5, electric toy 1, sensor 6, and terminal wire 7. It highlights the basic linkage structure of the electric toy 1 being connected to the fixing post 21 of the electric toy placement plate 2 via spring 20. It also shows that the outlet of the water outlet pipe 12 faces the cup 5 on the cup placement plate 4, clearly indicating the liquid output path. Furthermore, the exposed digital display 8, start button 11, and power switch 10 on the front of component box 3 are clearly visible in the diagram, corresponding to the "child-friendly operation" design in the technical solution.

[0059] 2. Figure 2 Schematic diagram of the main unit base of the single-person liquid output and electric toy linkage device

[0060] The view shows the core layout of the host's base. The liquid container fixing plate 18 and buckle 17 at the rear of component box 3 are clearly shown, clarifying the fixing method between the liquid container 13 and the host. This diagram can intuitively understand the distribution logic of "power components-control components-power supply components" inside the host, providing graphic support for the "host integrated design" in the technical solution.

[0061] 3. Figure 3 Schematic diagram of a liquid container in a single-person liquid dispensing device linked to an electric toy.

[0062] The view is a close-up of the front of the liquid container, magnifying the detailed structure of the liquid container 13. The image includes the transparent gourd-shaped cartoon liquid container 13, the lid 16 with a silicone sealing ring, the combination lock 14 on the latch of the lid 16, the cleaning button 15 on the inside of the lid 16, and the water outlet pipe 19 at the bottom of the liquid container 13; this image corresponds to the design features of "food-grade material for the liquid container, anti-accidental opening, and washable" in the technical solution, clearly defining the core functional details of the container.

[0063] 4. Figure 4 Overall front view of the two-person liquid output and electric toy linkage device

[0064] The view is taken from the front of the device, showcasing the symmetrical layout and dual-path configuration of the two-person unit. The diagram includes two electric toy placement plates 2-1 and 2-2 (each corresponding to one electric toy 1-1 and 1-2) fixed to a common plate 22, two cup placement plates 4-1 and 4-2 (each holding one cup 5-1 and 5-2), and a shared liquid container 13. The key feature is the dual-component box-dual electric toy-dual cup configuration for two-person competition. The two side water outlet bends 12-1 and 12-2 (similar components in the two-person unit) are directly opposite their respective cups 5-1 and 5-2, clearly demonstrating the independent liquid output through the dual paths. The diagram also shows the dual configuration of sensor 6 and terminal wire 7, corresponding to the "dual-person independent triggering" design in the technical solution, visually presenting the core structural differences between the two-person and single-person units.

[0065] 5. Figure 5 Schematic diagram of a liquid container in a two-person liquid dispensing and electric toy linkage device.

[0066] The view is a close-up of the liquid container's front, focusing on the differentiated structure of the dual-person dedicated liquid container 13. Besides the combination lock 14, cleaning button 15, and lid 16 of the single-person liquid container, the image highlights the two water outlet pipes 19-1 and 19-2 at the bottom of the liquid container 13. This design corresponds to the dual-path liquid transmission logic in the technical solution, where "the two water outlet pipes are respectively connected to the inlets of two miniature water pumps," clearly demonstrating the core design of the dual-person device that achieves independent water supply from both sides through a single container and dual pipelines. Figure 4 The dual-path layout complements each other.

[0067] 6. Figure 6 Bottom view of the main unit of the two-person liquid output device and the electric toy linkage device

[0068] The view is taken from directly above the device, showing the bottom layout and structure of the two-player main unit. The figure includes two symmetrically distributed component boxes 3-1 and 3-2 (similar components for the two-player model), each with a water outlet bend 12-1 and 12-2 on its upper part. The common plate 22 is fixed with two electric toy placement plates 2-1 and 2-2, and fixing posts 21-1 and 21-2.

[0069] 7. Figure 7 Schematic diagram of the circuit board connecting the liquid output device and the electric toy linkage device.

[0070] This diagram is intended to show the approximate location of various functional modules (such as signal processing modules and execution drive modules) on a circuit board, as well as the installation positions of key components such as terminal blocks and charging sockets. It is only a schematic diagram and does not include specific design details of the circuit board (such as component model parameters, circuit routing layout, soldering points, etc.), therefore it cannot be used as an actual circuit board design or manufacturing drawing.

[0071] 8. Figure 8 Flowchart of the liquid dispensing device and the linkage mechanism between the electric toy

[0072] This diagram illustrates the workflow of the liquid output device and the electric toy linkage mechanism. Using a "box + arrow" format, it fully demonstrates the entire workflow logic from signal acquisition to the final output of liquid and driving the electric toy to perform actions.

[0073] This flowchart simplifies the design logic: A: To ensure a concise and clear diagram and avoid excessive text, Figure 8 Within each functional module / unit's box, only the core name of the module / unit (such as "Initial Trigger Unit," "Signal Processing Module," etc.) is labeled, with an Arabic numeral (①, ②, ③...) next to the name as an identifier. B: Correspondence between serial numbers and descriptions: The serial numbers within the boxes in the diagram are unique identifiers for "Functional Principles and Component Descriptions." Their corresponding specific content (including the module / unit's working principle, core functions, and list of included components, etc.) is uniformly placed in this "Diagram Description" section and explained in detail below; the signal flow of each serial number module is: ① (Signal Acquisition) → ② (Signal Conversion) → ③ (Counting Display) → ④ (Threshold Judgment) → ⑤ (Delay Hold) → ⑥ (Drive Execution), forming a complete closed loop of "Signal Input-Processing-Execution," which corresponds completely to steps 1-7 of the "Core Working Logic" in the technical solution.

[0074] ① Input: Learning machine / amusement machine instructions; Acquisition: Terminal wire acquisition / microphone (microphone head) pickup; ② Component: Sound sensor module; Function: 1. Sound → electrical signal conversion; 2. Adjustable resistor to set threshold; 3. Signal ≥ threshold → high level to low level switch signal; ③ Component: CD4518 chip, CD4511 chip, digital tube; Function: Receive signal and count, digital tube counts synchronously from 00 to 99; ④ Rule: Compare the counting result of ③ with the preset value (e.g., 10 times); Component: CD4518 chip; Function: When the count reaches the preset value, immediately output a high-level trigger signal through a 4148 diode to the input terminal of the motor drive module in step ⑥; ⑤ Component: 555 chip, RC components (set delay, e.g., 10 seconds); Function: Hold the trigger signal until the delay ends; ⑥ Component: Motor drive module; Core function: This module supports "one-to-three" load output, which can convert the trigger signals of the counting module and the delay circuit module into a single-channel drive current, and simultaneously power three low-voltage actuators / modules. Output channels and compatible devices: There are three high-level output terminals, all compatible with 5V lithium battery power supply. Specifically: A, drive terminal: provides drive current for the water pump; B, power supply terminal one: provides operating power for the electric toy; C, power supply terminal two: provides operating power for the delay circuit module. At the same time, the delay circuit module outputs two currents simultaneously. One current flows to the counter reset terminal to reset the count, and the other current provides trigger current to the input terminal of the motor drive module. This continues until the delay circuit module disconnects after the timer ends, at which point the motor drive module stops supplying power to the three loads, achieving synchronous stopping of the water pump and the electric toy.

[0075] The above content should be understood in conjunction with the accompanying diagram to avoid misunderstanding. Figure 8 Each functional module is separated by an arrow with a text description; there is no additional text explaining the signal flow. In the descriptions of the numbers above, ③ and ④ correspond to the same counting module, which mainly performs internal signal transmission and processing.

[0076] In addition, Figure 8 Due to space limitations, the following circuit flow is not described: The thyristor's on / off state is controlled by multiple signals—the start button triggers the thyristor to turn on, while the NE 555 delay circuit module controls the thyristor's turn-off state via a transistor; simultaneously, the external signal input terminal is connected to the sound sensor module through the thyristor, forming a complete signal linkage logic. This part will be described in the detailed implementation section.

[0077] 9. Figure 9 : Schematic diagram of the component box structure. The component box contains a control circuit board, a lithium battery and a water pump. The digital tube, start button and power switch protrude from the component box.

[0078] Explanation of labels in the diagram

[0079] 1. Electric toys: Corresponding to Figure 1 , Figure 4 It is shaped like a cartoon dog and integrates a micro motor, LED beads and a speaker. The tail is hung on the fixed column 21 by a spring 20. After receiving the signal from the control circuit board 27, it can realize jumping and sound and light actions. It is the core execution component of the "electric toy linkage" function; there is 1 single-person device and 2 double-person devices.

[0080] 2. 2-1. 2-2. Electric toy storage board: Corresponding Figure 1 , Figure 4 , Figure 6 The plate is a rectangular plastic plate. In the single-person device, it is independently welded to one side of the component box 3. In the double-person device, the two plates are fixed together on the common plate 22. The plate surface is welded with fixing posts 21 for hanging the springs 20 of the electric toy 1 to achieve stable installation and motion buffering of the electric toy.

[0081] 3, 3-1, 3-2. Component boxes: Corresponding Figure 1 , Figure 2 , Figure 6 , Figure 9 The device is a hollow rectangular ABS engineering plastic box (2mm thick wall) and is the core load-bearing component of the main unit. Inside, there is a miniature water pump 30, a control circuit board 27 and a lithium battery 29. The rear is equipped with a removable cover (fixed with M3 screws), and the front is equipped with a digital tube 8, a start button 11 and a power switch 10, realizing an integrated layout of "power-control-operation". There is one single-person device and two double-person devices, which are symmetrically distributed.

[0082] 4. 4-1. 4-2. Cup placement board: Corresponding to Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 9 The rectangular plastic plate (15cm×10cm) is welded to the front of the component box 3. The cup 5 is placed on the plate and positioned directly opposite the water outlet of the water outlet bend 12 to ensure that the liquid is accurately injected into the cup. There is one single-person device and two double-person devices, each corresponding to the water outlet bend.

[0083] 5, 5-1, 5-2. Cups: Corresponding Figure 1 , Figure 4 , Figure 9 Made of food-grade PP material (capacity 200ml, diameter 6cm), it is placed on the cup placement plate 4 to receive the liquid output from the water outlet bend 12; one unit is provided for single-person use and two units are provided for double-person use, to meet the liquid receiving needs of single-person use or double-person competition.

[0084] 6. Microphone component: Corresponding Figure 1 , Figure 2 , Figure 6 It is equipped with an external rubber protective cover and is connected to the sensor terminal socket of the control circuit board 27 via terminal wire 7; it can detect sound signals of 30dB-120dB (such as the sound of children answering questions, the sound of amusement machine operation) and convert them into electrical signals and transmit them to the control circuit board 27. It is the core component of the device's "external signal triggering"; one unit is provided for single-person devices and two units are provided for double-person devices, respectively corresponding to the triggering needs on both sides.

[0085] 7. Terminal wire: Corresponding Figure 1 , Figure 2 , Figure 6 It is 1.5m long, with an AWG24 wire diameter. One end is a PH2.0 terminal head (connecting to the 27-terminal female connector on the control circuit board), and the other end is soldered with a microphone assembly 6. One wire is provided for a single-person device, and two wires are provided for a double-person device.

[0086] 8. Digital tube: Corresponding to Figure 1 , Figure 2 , Figure 6 , Figure 9 It is a 2-digit common cathode seven-segment display (1.2 inches in size, red display), soldered to the bottom layer of the control circuit board and protruding 3mm from the surface of the box; driven by the CD4511 chip on the control circuit board 27, it can display the count value from 00 to 99 in real time, making it convenient for children to see the current trigger count progress, and is the key component of "counting visualization".

[0087] 9. Female charging port: Corresponding Figure 2 , Figure 6 It is a DC-005 model DC female connector, which is soldered to the edge of the control circuit board 27 and protrudes from the box body through the opening on the side wall of the component box 3; the input voltage is 5V, which is used to connect an external charger to charge the lithium battery 29. One is provided for the single-person type and one is provided for each component box of the double-person type device to meet the independent charging needs.

[0088] 10. Power switch: Corresponding Figure 1 , Figure 2 , Figure 6 , Figure 9 It is a red touch button (6mm in diameter, 0.5mm travel), soldered to the bottom layer of the control circuit board and protruding 2mm from the front surface of the outer component box 3; it is used to control the power supply of the device. When pressed, the device is powered on and put into standby mode, and when pressed again, the power is turned off. It is easy to operate and suitable for children.

[0089] 11. Start button: Corresponds to Figure 1 , Figure 2 , Figure 6 , Figure 9It is a green touch button (6mm in diameter, 0.5mm travel), soldered to the bottom layer of the control circuit board and exposed 2mm on the front surface of the component box 3; connected to the counting module of the control circuit board 27, after being pressed, the counting module is reset and enters the ready-to-trigger state, which is the trigger component for the device to "start counting", and works with the power switch 10 to realize the complete operation process of the device.

[0090] 12. Outlet bend: Corresponding Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 9 It is an L-shaped ABS plastic bend (8mm inner diameter, 10cm length), with one end connected to the outlet of the miniature water pump 30 via a food-grade silicone tube, and the other end facing down and directly opposite the cup placement plate 4; used to change the direction of liquid output, ensuring that the liquid is accurately injected into the cup 5 from the top of the component box 3, avoiding liquid splashing; one single-person device is provided, and two double-person devices are provided, corresponding to the water pumps on both sides respectively.

[0091] 13. Liquid containers: Corresponding Figure 1 , Figure 3 , Figure 4 , Figure 5 Made of transparent food-grade PET material (compliant with GB 4806.7-2016 standard), it comes in single-person and double-person models, with one unit each. The overall design is a gourd-shaped cartoon form (20cm high, 8cm maximum diameter), with a lid 16 on top and a water outlet 19 at the bottom (one for single-person and two for double-person). It is used to store liquids (such as beverages and juices), and the transparent design allows children to observe the remaining liquid level. The cartoon shape is also appealing to children.

[0092] 14. Combination lock: Corresponding Figure 1 , Figure 3 , Figure 4 , Figure 5 It is a miniature 3-digit digital combination lock installed on the latch between the liquid container 13 and the lid 16; the correct password must be entered to open the lid 16, preventing children from accidentally opening the container and causing liquid to spill or be accidentally drunk, thus improving the safety of the device.

[0093] 15, 15-1, 15-2. Cleaning buttons: Corresponding to Figure 1 , Figure 3 , Figure 4 , Figure 5The button is a touch-sensitive button (0.5mm travel) located inside the cover 16. It is connected to the cleaning control port of the control circuit board 27 via a 10cm long dual-core electronic wire. When pressed, the control circuit board 27 directly outputs a 5V drive signal to the miniature water pump 30 (bypassing the L298N motor drive module and controlled independently) to flush the residual liquid in the water outlet pipe 19, water pump 30, and water outlet bend 12, ensuring the hygiene of the next liquid output. It is the operating component of the device's "pipeline cleaning" function. The single-person device has one cleaning button and component, and the double-person device has two cleaning buttons and components, used to clean their respective pipelines.

[0094] 16. Lid: Corresponding Figure 1 , Figure 3 , Figure 4 , Figure 5 It features a screw-on plastic cap (with a silicone sealing ring) that is threadedly connected to the liquid container 13; an integrated cleaning button 15 is located on the inside, and a combination lock 14 is installed on the outside in conjunction with the container's latch; it combines the triple functions of sealing against leakage, integrating a cleaning button, and using a combination lock to prevent accidental opening, ensuring the safety and functionality of the liquid container.

[0095] 17-1, 17-2. Buckles: Corresponding Figure 2 , Figure 6 Two elastic buckles made of plastic (5cm apart) are integrally molded onto the surface of the liquid container fixing plate 18. The liquid container 13 is clamped and fixed to the fixing plate through elastic deformation, which realizes the quick assembly and disassembly of the liquid container, while ensuring that the container will not move when the device is running (such as when the electric toy 1 jumps).

[0096] 18. Liquid container fixing plate: Corresponding Figure 2 , Figure 6 It is a round, flat plastic plate (10cm in diameter for single-person type and 12cm in diameter for double-person type); in the single-person type, it is independently welded to the rear of the component box 3, and in the double-person type, it is a common plate and fixed in the middle of the main frame; the plate surface is provided with two buckles 17 for fixing the liquid container 13, which is the connecting carrier between the liquid container and the main unit.

[0097] 19, 19-1, 19-2. Water outlet pipes: Corresponding Figure 3 , Figure 5 It is a food-grade silicone tube (8mm inner diameter, 15cm length), with one end interference-fitted to the lower interface of the liquid container 13 and the other end equipped with a pagoda connector; used to connect the liquid container 13 to the inlet of the miniature water pump, realizing the transfer of liquid from the container to the water pump 30; one tube is provided for the single-person device and two tubes are provided for the double-person device, which are respectively connected to the two water pumps 30 to ensure dual-channel liquid supply.

[0098] 20. Spring: Corresponding to Figure 4It is a stainless steel compression spring (5cm in length, 3mm in diameter, and 0.5mm in wire diameter); one end is welded with a round hook and attached to the tail of the electric toy 1, and the other end is fitted onto the fixed post 21; when the motor inside the electric toy 1 is running, the spring can achieve the jumping action of the toy through expansion and contraction deformation, while buffering the collision between the toy and the placement plate to avoid damage to the parts.

[0099] 21. Fixed column: Corresponding to Figure 4 It is a cylindrical plastic column (5mm in diameter and 3cm in height) integrally molded on the surface of the electric toy placement plate 2; it is used to fit the spring 20, providing a fixed fulcrum for the electric toy 1, ensuring that the electric toy will not detach from the placement plate when jumping, and is a key support component for the installation and operation of the electric toy.

[0100] 22. Common board: Corresponding to Figure 4 It is a rectangular plastic plate (25cm×8cm) and is only used in the two-player device. It is welded between the right side walls of the two component boxes 3, and two electric toy placement plates 2 (10cm apart) are fixed on the surface. It is used to realize the symmetrical layout of the two electric toys in the two-player device, to ensure that the toys on both sides are in the same position, and to meet the fairness requirements of two-player competition.

[0101] 23. Signal input terminal block: Corresponding to Figure 7 An external control signal (such as a trigger signal) access interface is connected to the signal processing module of the control circuit board 27.

[0102] 24. Water pump terminal block: Corresponding Figure 7 It connects the miniature water pump 30 to the control circuit board 27 to transmit drive signals and current.

[0103] 25. Electric toy terminal block: Corresponding Figure 7 It connects the electric toy 1 to the control circuit board 27, transmitting motion drive signals and current.

[0104] 26. Lithium battery terminal block: Corresponding Figure 7 The lithium battery 29 is connected to the control circuit board 27 to power the entire device.

[0105] 27. Control Circuit Board: The instruction manual, under "Technical Solution - Overall Technical Architecture - Control Module," clearly identifies it as the core control component of the device. Specifically, it is installed inside the right side of component box 3 (next to lithium battery 29, with a 2cm gap for interference prevention). It integrates power management, counting, motor drive modules, and terminal blocks 23-26, responsible for signal processing, counting judgment, and drive control (such as triggering the water pump 30 to operate and the electric toy 1 to move in tandem). Figure 2 (Diagram of a single-user main unit stand) Figure 6 (Bottom view of the two-person main unit) is an external / bottom view of the component box. Figure 7The above figures are for illustrative purposes only and are not shown due to the limitations of two-dimensional views. The detailed structure, component configuration and working logic are subject to the textual description in the instruction manual. There is 1 unit for single-person devices and 2 units for double-person devices.

[0106] 28. Cleaning button terminal block: One end is directly connected to the power supply VCC terminal, and the other end is connected to the input terminal (IN1) of the motor drive module. Pressing the button will directly drive the micro water pump to run, thereby quickly flushing the pipeline and ensuring its hygiene and safety.

[0107] 29. Lithium battery: (See attached document) Figure 9 .

[0108] 30. Water pump: (See attached document) Figure 9 .

[0109] In the attached drawings, 1, "1-1" and "1-2" are the same type of component, and their naming rules (i.e. "XY" format) are universal - in other drawings, any component that uses this "number-number" identification (such as 2, 2-1, 2-2, etc.) belongs to the same type of component. Detailed Implementation

[0110] To make the purpose, technical solution, and beneficial effects of the present invention—a liquid output and electric toy linkage device applied to learning machines and amusement machines—clearer, the following describes specific embodiments and accompanying drawings. Figures 1-8 The present invention will be further described in detail below. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0111] The core of this invention lies in achieving full-process automation of "external signal triggering → counting → liquid output → electric toy linkage" through "mechanical structure integration + circuit coordinated control," adapting to children's learning incentive and interactive play scenarios. Based on a unified technical concept, this invention includes two parallel embodiments—a single-person liquid output and electric toy linkage device, and a double-person liquid output and electric toy linkage device. The core technical principles of both are the same, differing only in the number and layout of components. Specific implementation details are as follows.

[0112] (I) General Implementation Basis (Shared by both implementation examples)

[0113] Before proceeding with specific embodiments, we must first clarify the general technical standards of the device to ensure consistency and repeatability in subsequent embodiments:

[0114] 1. Selection Criteria for Core Components

[0115] The selection of core components strictly matches the low power consumption, small size, and safety-friendly requirements of children's scenarios. The specific parameters and specifications are as follows:

[0116] -Miniature water pump 30: The selected model is DC50E, with a working voltage of 5V DC, a rated flow rate of 1.5L / min, a maximum head of 1.5m, an outlet inner diameter of 8mm, and is made of food-grade ABS material; this model can output 200ml of liquid (suitable for cup capacity) in 10 seconds, and its compact size can fit into the internal installation space of the component box.

[0117] - Control circuit board: The PCB board size is 15cm×3cm, the thickness is 1.6mm, the copper foil line width of the power circuit is 1mm, the copper foil line width of the signal circuit is 0.8mm, and the pad diameter is 2mm; this specification ensures the stability of circuit conduction and can be smoothly installed in a 25cm×15cm×12cm component box.

[0118] - Lithium Battery 29: Uses 18650 model, capacity 2000mAh, nominal voltage 5V, with built-in charge and discharge protection board (overcharge protection voltage 5.2V, over-discharge protection voltage 3.0V); a single charge can support the water pump to work continuously for 30 times (10 seconds each time), meeting the daily use needs of children. The protection board design can prevent the battery from being damaged by overcharging and over-discharging.

[0119] - Sound sensor module: Model KY-037, detection frequency range 20Hz-16kHz, sensitivity can be adjusted by a 10kΩ potentiometer; it can accurately identify the sound of children answering questions (60-80dB) or the sound of amusement machine operation, and is suitable for signal triggering needs in both learning and amusement scenarios.

[0120] - Electric Toy: The attached image shows a cartoon dog design. Internally, it integrates a micro motor (5V DC, 3000rpm), two LED beads (one red and one blue, operating current 20mA), and a motor-driven eccentric wheel that can achieve a jumping amplitude of ≤3cm. The sound and light feedback is aesthetically pleasing to children, and the decibel level is controlled within a safe range to avoid noise interference. This invention has broad compatibility with electric toys. The compatibility logic is as follows: The core lies in the terminal wire between the toy connection terminal block of the device and the electric toy 1. When the terminal wire is long enough, it can be directly plugged into the corresponding interface of various electric toys, so that the placement of the electric toy is no longer limited by the device itself. It can operate in any location. As long as the terminal wire length meets the connection requirements, the toy can be triggered and started by the device.

[0121] -Electronic components:

[0122] ① Core functional modules:

[0123] - Counting and decoding module: includes: A. Core counting device: a CD4518 dual BCD counter chip, which acts as the module's "digital accumulator" and is responsible for converting the input pulse signal into a counting result in BCD code form;

[0124] B. Display driving device: Two CD4511 BCD-7 segment decoder chips, which play a dual role of "code translation" and "display driving". After decoding the counting result of CD4518, they directly drive the 7 segment LED display to display numbers;

[0125] C. Clock signal source: A multivibrator composed of an NE555 timer and RC components provides a stable pulse input for the entire counting module and is the "power source" of the counting function.

[0126] -Drive module: L298N motor driver chip (outputs 5V drive current, maximum 2A), its function is to enhance load capacity and drive actuators;

[0127] - Delay circuit module: Composed of NE555 timer chip and resistive and capacitive components (resistors and capacitors), it realizes the delayed output of circuit signals as required, meets specific timing control requirements, and achieves precise delayed output of signals;

[0128] -Sensing Module: KY-037 sound sensor module, which achieves precise sensitivity adjustment through the adjustable resistor on the top. It supports dual signal input - it can pick up external sound through the microphone and convert it into a weak electrical signal, and it can also directly connect to external command electrical signals; when the strength of the input signal reaches the threshold set by the adjustable resistor, the module will immediately output a switch electrical signal.

[0129] - Power management module: TP4056 series lithium battery dedicated management chip.

[0130] It is important to note that this circuit contains two independent functional units composed of NE555 timer chips and resistive-capacitive components. Their functions are clearly defined: A. The first unit acts as a "pulse generator," continuously providing a stable pulse signal (signal source) to the counting module, ensuring the normal startup and operation of the counting function. B. The second unit plays the core role of a "delayed shutdown controller": when the drive motor receives the start signal and begins to run, this unit starts timing. After reaching the preset delay time, it sends a shutdown signal to stop the motor. Through this "start-and-delay shutdown" logic, the quantitative output of the liquid sample is ultimately achieved.

[0131] The aforementioned electronic functional module refers to a "functional unit" in an electronic system that is composed of several electronic components (chips, resistors, capacitors, etc.) arranged according to specific circuit principles around a clear core function (such as counting, delay, signal detection) and has independent working capabilities.

[0132] ② Display and operation elements:

[0133] - Display element: 2-digit common cathode seven-segment LED display (red display, 1.2-inch size);

[0134] - Operating elements: red power switch (touch-sensitive, 6mm diameter), green start button (touch-sensitive, 6mm diameter).

[0135] ②Connection and interface components:

[0136] - Terminal blocks: DC-005 charging female connector, toy connection terminal block (PH2.0-2P), signal input terminal block (PH2.0-2P), water pump 30 terminal block (PH2.0-2P), lithium battery terminal block (PH2.0-2P), and cleaning button terminal block;

[0137] - Connecting accessories: Terminal wire (extendable type for toys, power circuit AWG24 specification, signal circuit AWG26 specification, length 1.5m).

[0138] ④ Basic circuit components:

[0139] - RC components: resistors, capacitors (used with a 555 timer to form an oscillation circuit, and for voltage division and filtering in other circuits), 4148 switching diodes and thyristors (model MCR100-6, rated current 1A, trigger current ≤10μA).

[0140] All of the aforementioned electronic components are standardized, general-purpose components widely used in the electronics field. They have the advantages of readily available procurement channels, low cost, and high technological maturity, and can be directly obtained and integrated by those skilled in the art. Meanwhile, the core functional modules of the device (including the sound sensing module, delay control module, and motor drive module) all adopt a universal modular design, possessing good compatibility and interchangeability. They can be directly replaced with other technologically mature standardized modules with the same function on the market (such as the LM393 sound sensor and the CD4060 delay module), without requiring significant adjustments to the overall circuit architecture, further reducing the development and maintenance costs of the device.

[0141] - Connecting components: Terminal wires are differentiated by function, with AWG24 standard for power circuits and AWG26 standard for signal circuits, both with a length of 1.5m; water pipes are made of food-grade silicone tubing with an inner diameter of 8mm and a wall thickness of 2mm; fixing screws are made of M3 stainless steel screws; the terminal wires can meet the requirements of low signal loss transmission (signal attenuation ≤5%), the water pipes meet food safety standards, and the screws can ensure that the components are firmly fixed.

[0142] 2. General security and adaptation design

[0143] - Safety Protection: All parts in contact with liquid (liquid container 13, water pipe, water outlet bend 12, cup 5) comply with "GB4806.7-2016 National Food Safety Standard for Plastic Materials and Products for Food Contact". Among them, liquid container 13 is made of food-grade PET material, and water pipe and water outlet bend 12 are made of food-grade silicone material. The circuit module has dual protection. The lithium battery has a charge and discharge protection board to prevent overcharging and over-discharging. The motor drive module (L298N) automatically cuts off power when the current is >2.5A to avoid overload damage. The tail spring 20 of electric toy 1 (stainless steel material, wire diameter 0.5mm) has a limit structure to prevent children from accidentally touching it and causing the spring to fall off.

[0144] -Scene Adaptation: Scene compatibility is achieved through "terminal line switching trigger mode". When connected to the learning machine, the terminal line receives the TTL high-level instruction signal (voltage 3.3-5V, pulse width 100ms) of the learning machine; when connected to the amusement machine, the terminal line receives the switch signal (on / off time ≥50ms) of the amusement machine; no hardware structure modification is required.

[0145] 3. Complete circuit link description

[0146] ① Power supply link (including charging and power supply)

[0147] A. Charging Link: External charger (5V / 1A) → DC-005 charging port female connector 9 → Control circuit board 27 charging management module (built-in TP4056 chip + anti-reverse insertion diode) → Lithium battery terminal 26 → 18650 lithium battery (5V / 2000mAh, with charge and discharge protection board); Branch: DC-005 charging port female connector 9 → 1kΩ current limiting resistor → red charging indicator light → common ground (the indicator light is always on during charging, and turns off when the TP4056 module is powered off after full charge).

[0148] B. Central control and branch power supply:

[0149] B1. Main control path: 18650 lithium battery 29 positive terminal → red power switch 10 → control circuit board 27 VCC terminal (5V).

[0150] B2. Core Control Module Branching (3.3V Power Supply): Control Circuit Board 27 VCC Terminal → Branch 1: CD4518 Counter Chip VCC Terminal → CD4518 Counter Chip GND Terminal → Common Ground; Branch 2: CD4511 Decoder Chip VCC Terminal → CD4511 Decoder Chip GND Terminal → Common Ground; Branch 3: NE555 (555 Series) Chip GND Terminal → Common Ground. The NE555 chip has two core functions: ① When the counting threshold is not reached, it forms a multivibrator with resistors and capacitors to provide a stable counting pulse for the CD4518 (frequency 1Hz, ensuring accurate counting); ② After reaching the counting threshold, it switches to delay mode, outputting a 10-second high-level signal to maintain drive and trigger reset. Function switching is controlled by the current signal output by the L298N.

[0151] B3. Execution drive module branch (5V power supply): Control circuit board 27 VCC terminal → L298N motor drive module VCC terminal → L298N motor drive module GND terminal → Common ground.

[0152] ② Load power supply link (powered by L298N): L298N motor drive module VCC terminal → Branch 1: L298N OUT terminal → Electric toy terminal block 25 → Electric toy 1 motor → Electric toy terminal block 25 → L298N motor drive module GND terminal → Common ground; Branch 2: L298N OUT terminal → Water pump terminal block 24 → Miniature water pump → Water pump terminal block 24 → L298N motor drive module GND terminal → Common ground; Branch 3: L298N OUT terminal → NE555 chip VCC terminal → NE555 chip GND terminal → Common ground.

[0153] ③ Auxiliary module branch (5V power supply): Control circuit board 27 VCC terminal → Branch 1: Digital tube 8 VCC terminal → Digital tube 8 GND terminal → Common ground; Branch 2: Sound sensor module VCC terminal → Sound sensor module GND terminal → Common ground.

[0154] ④ Start Button - Thyristor and Transistor Link Branch (External Signal Input Channel): Control Circuit Board 27VCC Terminal → Branch 1: Green Start Button 11 (One End) → Green Start Button 11 (The Other End) → 1kΩ Current Limiting Resistor → Thyristor (MCR100-6) Gate; Branch 2: 10kΩ Pull-up Resistor (R2) → Thyristor G Terminal → NPN Transistor (S8050) Collector (C Terminal) → Transistor Emitter (E Terminal) → Common Ground; Branch 3: 1kΩ Current Limiting Resistor (R1) → NPN Transistor Base (B Terminal) (Power supplied by NE555 chip output); Branch 4: Signal Input Terminal 23 → Thyristor (MCR100-6) Anode → Thyristor (MCR100-6) Cathode → Sound Sensor Module Input Terminal.

[0155] ⑤ Signal link (including transistor pull-down shutdown logic, complete workflow)

[0156] A. (Initial state, power on, start button not pressed): System initial standby unit

[0157] The NE555 chip is not triggered, and the output is low. → 1kΩ current-limiting resistor (R1) → no drive current at the base (B) of the NPN transistor → the transistor is in the off state (CE terminal is disconnected, and the thyristor enters the allowed turn-on state); the potential difference between the A terminal (connected to the external signal) and the K terminal of the thyristor is close to 0 → the AK terminal of the thyristor is turned off (K terminal is connected to the input terminal of the sound sensor), and the external signal cannot be transmitted; the CD4518 counter chip is in the cleared state → the digital tube 8 displays "00".

[0158] B. (Start button triggered, thyristor conducts, signal channel opens): Button-triggered start unit

[0159] External signal source (sound / learning machine command) → signal input terminal block 23 → thyristor A terminal → [press green start button 11] → 5V power supply of control circuit board 27 → start button 11 → 1kΩ resistor → thyristor G terminal (obtain ≥10μA positive trigger current, and A terminal voltage > K terminal voltage) → positive feedback is formed inside the thyristor, AK terminal conducts → thyristor K terminal → sound sensor module IN terminal.

[0160] C. (Signal Processing and Counting): Signal processing and counting unit

[0161] Signal input terminal block 23 → Thyristor → IN terminal of sound sensor module → Sound sensor module (outputs low level when signal strength reaches threshold) → Multivibrator composed of NE555 (shaping signal is a standard 1Hz pulse) → CLK terminal of CD4518 counter chip → CD4518 counter chip (count increments by 1 for each received pulse) →

[0162] Branch 1: CD4518 Q1-Q8 pins (output BCD code) → CD4511 decoder chip D0-D3 terminals → CD4511 outputs seven-segment drive signal → Digital tube 8 (real-time display of 00-99 count value);

[0163] Branch 2: The CD4518 count reaches the preset threshold (10 times. The logic for setting the preset threshold for the number of counts is that the carry terminal of the CD4518 is connected to the input terminal of the L298N motor drive module through the positive 4148 switching diode). That is, the CD4518 CO terminal (output high level) → the input terminal of the L298N motor drive module.

[0164] D. Threshold Counting Trigger Drive Unit

[0165] When the counting module reaches the threshold (10 times), the CD4518 CO terminal (high level) → +4148 switching diode - (one-way conduction, anti-reverse current) → L298N motor drive module IN1 terminal (input high level drive) →

[0166] Branch 1: L298N motor drive module output power (OUT1, OUT2) → electric toy terminal block 25 → electric toy 1 (start-up jump + LED flashing + horn sound);

[0167] Branch 2: L298N motor drive module output power (OUT1, OUT2) → water pump terminal block 24 → miniature water pump (start liquid discharge);

[0168] Branch 3: L298N motor drive module output current (OUT1) → NE555 chip VCC terminal → NE555 chip GND terminal → common ground;

[0169] E. Delay module power supply start-up and branch control unit

[0170] Branch 1: NE555 chip output terminal → +4148 switching diode - (one-way conduction, anti-reverse current) → L298N motor drive module IN terminal (input high level drive); Note: The delay circuit module has the characteristic of starting the delay function upon power-on.

[0171] Branch 2: NE555 chip (10-second delay before startup) → output turns high → 10kΩ current limiting resistor (R1) → transistor base (B) receives drive current (I_b≥I_c / β, β is 100) → transistor saturates and conducts (CE short-circuit) → thyristor K is pulled to 0V low level → thyristor turns off;

[0172] Branch 3: NE555 chip (10-second delay) → output turns high → CD4518 reset terminal → CD4518 count reset → digital tube 8 displays "00"; when the NE555 chip delay ends, the output flips to low → CD4518 counter chip RESET terminal → CD4518 counter chip enters the counting enable state.

[0173] F. (Delay ends, thyristor is enabled, signal channel awaits activation): Delay end and thyristor turn-off unit.

[0174] NE555 chip (after a 10-second delay, the output goes low) →

[0175] Branch 1: L298N motor drive module IN terminal → L298N stops outputting power → Electric toy 1 / mini water pump stops working;

[0176] Branch 2: The base of the transistor loses its driving current → the transistor returns to the cutoff state (the collector and emitter terminals are disconnected) → the base of the thyristor recovers to a potential of 5V through a 10kΩ pull-up resistor, and the potential difference between the base and the A terminal (external signal terminal) is 0 → the thyristor remains in the off state (but enters the conduction-enabled state, and the start button needs to be pressed again to provide the trigger current to the gate terminal in order to conduct again, in order to avoid false triggering).

[0177] G. (Reboot Process): System Cyclic Reboot Unit

[0178] When the workflow needs to be triggered again → press the green start button 11 again → the thyristor gate receives positive trigger current again → the AK gate is re-conducted (signal channel restored) → repeat workflow steps BE.

[0179] ⑥ Cleaning button circuit connection links

[0180] A. Hardware Composition and Terminal Socket Adaptation: The cleaning button 15 is integrated inside the liquid container lid 16 (touch-sensitive, 0.5mm travel), and is equipped with a cleaning button terminal socket (PH2.0-2P specification, compatible with terminal wires). This terminal socket is soldered to the edge of the control circuit board 27, serving as the connection interface between the cleaning button 15 and the circuit. The lead wire of the cleaning button 15 uses a 10cm long AWG26 specification dual-core terminal wire, with PH2.0 terminal heads at both ends. One end is inserted into the cleaning button terminal socket, and the other end is directly connected to the two pins of the cleaning button 15 to achieve a reliable electrical connection.

[0181] B. Specific connection path: Power supply connection: Control circuit board 27 VCC terminal (5V) → Cleaning button terminal block → One pin of cleaning button 15 (power input terminal): Load connection: The other pin of cleaning button 15 → Cleaning button terminal block → Motor drive module input terminal (IN1 pin), eliminating the need for a counting module and delay circuit module, thus achieving "direct control of the water pump by the cleaning button". The single-person device has one cleaning button and component, and the double-person device has two cleaning buttons and components, used to clean their respective pipelines.

[0182] It should be noted that: 1. The reset and clearing logic of the counting module is as follows:

[0183] ① When the counting module reaches the preset value, it outputs a high level, which is transmitted to the motor drive module via the 4148 switching diode (unidirectional transmission) to trigger its start.

[0184] ②. The motor drive module starts up, simultaneously supplying power to three channels: ① liquid output component, ② toy linkage component, and ③ delay circuit module (to prevent accidental startup).

[0185] ③. When the delay circuit module is powered on, it outputs a high level: the first path goes through a 4148 switching diode (to prevent signal interference) to the input terminal (IN1 pin) of the motor drive module, maintaining the drive state; the second path directly sends the signal to the reset terminal of the counting module, setting it to 0; the third path goes through an S8050 transistor to turn off the thyristor, preventing external signals from being input.

[0186] 4. After the delay ends, the level of the delay circuit module flips, the zeroing terminal of the counting module is unlocked, and it returns to standby mode, waiting for the next counting trigger.

[0187] 2. The logic for setting the threshold for the number of counts (10 times) of the counting module is as follows: The carry output terminal of the CD4518 counter chip is connected to the positive 4148 diode, and its negative terminal is connected to the signal input terminal of the motor drive module, so as to realize the drive trigger when the count reaches the set threshold.

[0188] (II) Example 1: Linkage device between single-person liquid dispensing device and electric toy 1 (see Figure 1 , Figure 2 , Figure 7 , Figure 8 , Figure 9 )

[0189] This embodiment is designed for use by a single child, such as answering questions on a learning machine to earn liquid rewards, or operating an amusement park machine to trigger interactive feedback. The specific structure, circuit connection, and workflow are as follows:

[0190] 1. Implementation details of the mechanical structure

[0191] See Figure 1 (Overall front view) Figure 2 (Diagram of the main unit's dock) Figure 3 (Diagram of liquid container) The mechanical structure of the single-person device consists of four parts: "main unit + liquid container + signal triggering component + interaction component". The assembly relationship and details of each part are as follows:

[0192] (1) Main unit assembly

[0193] - Component Box Structure: Component box 3 is a hollow cuboid made of ABS engineering plastic with a wall thickness of 2mm. A 10mm diameter round hole is opened on the upper front side for the water bend pipe 12 to pass through. Three rectangular holes are opened in the middle of the front (for the digital tube 8, start button 11, and power switch 10 to be exposed respectively, with hole sizes of 3cm×1cm, 1cm×1cm, and 1cm×1cm respectively). An 8mm×12mm rectangular hole is opened on the right side wall for the electronic wires of the electric toy 1 to pass through. A detachable box cover is provided at the rear (fixed by 4 M3 screws, with a sponge cushioning pad on the inside of the box cover to prevent internal components from vibrating and making abnormal noises).

[0194] - Internal component layout (see Figure 9Inside the component box 3, on the left side, a miniature water pump 30 is fixed by a plastic bracket (5cm high). The bracket is connected to the inner wall of the component box 3 by a snap-fit ​​for easy disassembly and maintenance. The water inlet of the water pump 30 faces the rear of the component box 3 (5cm from the rear side wall of the box), and the water outlet faces the upper part of the component box 3 (3cm from the top wall of the box). Inside the component box 3, on the right side, a control circuit board 27 is fixed by screws (placed horizontally, 2cm from the bottom wall of the box). A lithium battery is fixed 1cm above the control circuit board 27 (bound to the inner wall protrusion of the component box 3 by a plastic cable tie). The lithium battery and the control circuit board 27 are connected by a 2-pin terminal wire (5cm long, AWG24 specification) to ensure stable power supply.

[0195] -External fixing structure: A circular liquid container fixing plate 18 (diameter 10cm, thickness 3mm) is welded to the rear outer wall of the component box 3. Two plastic buckles 17 are symmetrically provided on the surface of the fixing plate for clamping and fixing the liquid container 13. A cup placement plate 4 (size 15cm×10cm, thickness 3mm) is welded to the front outer wall of the component box 3. The placement plate is inclined at a 15° angle to the top surface of the component box 3 to avoid liquid overflow. A circular groove with a diameter of 6cm is opened in the center of the plate to position the cup 5 and prevent the cup from sliding. An electric toy placement plate 2 (size 12cm×8cm, thickness 3mm) is welded to the right outer wall of the component box 3. A fixing post 21 (diameter 5mm, height 3cm, ABS plastic material) is welded to the center of the placement plate for hanging the spring 20 of the electric toy 1.

[0196] (2) Liquid container assembly

[0197] Liquid container 13 is a transparent gourd-shaped cartoon design, 20cm high, with a maximum diameter of 8cm and a wall thickness of 2mm. The assembly method is as follows:

[0198] - Container fixing: Align the bottom of the liquid container 13 with the two clips 17 of the liquid container fixing plate 18, and press down until the clips are fully locked onto the outer wall of the container (locking depth 3mm) to ensure that the container does not shift when the electric toy 1 bounces.

[0199] - Piping connection: One end of the water outlet pipe 19 (food-grade silicone tube, inner diameter 8mm, length 15cm) at the bottom of the liquid container 13 is press-fitted to the bottom interface of the container (fit depth 5mm to ensure a leak-free seal), and the other end is inserted into the inlet of the miniature water pump through a pagoda connector (outer diameter 8mm) (insertion depth 10mm), and fixed with pipe clamps to prevent the pipe from falling off.

[0200] - Lid and Safety Structure: The lid 16 on the top of the container is screw-on with a silicone sealing ring, which is tightened by rotating it clockwise 3 times (sealing pressure 0.2MPa, ensuring no liquid leakage); the cleaning button 15 (touch type, travel 0.5mm, the button pin is connected to the cleaning signal terminal of the control circuit board 27 through a 10cm long AWG26 terminal wire) is attached to the inside of the lid 16; a 3-digit digital combination lock 14 (lock body thickness 5mm, unlocking force ≤5N) is installed on the latch between the container and the lid 16 to prevent children from accidentally opening the container.

[0201] (3) Assembly of interactive components

[0202] - Cup 5 is made of food-grade PP material, with a capacity of 200ml and a mouth diameter of 6cm. It is placed in the circular groove of the cup placement plate 4, with the center of the cup vertically aligned with the water outlet of the water outlet bend 12 (L-shaped ABS bend, inner diameter 8mm, water outlet facing down). The distance between the two is 10cm to ensure that the liquid is poured vertically without splashing.

[0203] - A spring 20 (stainless steel, 5cm long, 3mm in diameter, 0.5mm wire) is welded to the tail of the electric toy 1. The round hook (6mm in diameter) at the end of the spring is attached to the fixed post 21 (hook depth 3mm). One end of the electronic wire (AWG26 specification, 15cm long) of the electric toy 1 is welded to the internal motor pin, and the other end is inserted into the toy drive terminal socket of the control circuit board 27 through the PH2.0 terminal head (insertion depth 5mm to ensure electrical continuity).

[0204] 2. Circuit System Implementation Details

[0205] See Figure 7 (Circuit board diagram) Figure 9 The component box structure diagram and the circuit modules in the general implementation basis, the circuit system of the single-person device is based on the control circuit board 27 to realize the closed-loop control of "signal input-processing-execution-feedback". Its core difference is that "it only contains 1 set of L298N drive modules, corresponding to 1 micro water pump electric toy 1, without counting synchronization circuit". The specific circuit structure and connection method are completely consistent with the general implementation basis, and will not be repeated here.

[0206] (III) Example 2: Two-person liquid dispensing device and electric toy linkage device (see Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 )

[0207] This embodiment is suitable for use by two children simultaneously, such as in scenarios like a two-player learning machine quiz competition or an amusement park game battle. Based on the technical foundation of the single-player embodiment, it achieves independent interaction between two children through "dual-path symmetrical layout + dual-circuit synchronous control". The specific implementation details are as follows:

[0208] 1. Detailed implementation of the mechanical structure (differences from the single-person version)

[0209] See Figure 4 (Overall front view of the two-person figure) Figure 5 (Diagram of a two-person liquid container) Figure 6 (Top view of the two-person main unit), the two-person unit mainly optimizes the "main unit layout, liquid container, and common components" based on the single-person unit:

[0210] (1) Host dual-path layout

[0211] - Component Boxes and Common Board: The main unit has two symmetrically distributed component boxes 3-1 and 3-2 (the same size as the single-player model, both 25cm×15cm×12cm), which are fixed to the front and rear of the main unit frame respectively (30cm apart, mirror symmetrical); the right side walls of the two component boxes 3-1 and 3-2 are welded together with a common board 22 (25cm×8cm, 3mm thick, ABS material). Two electric toy placement boards 2-1 and 2-2 are symmetrically set on the surface of the common board 22 (10cm apart, the same size as the single-player model), each placement board corresponding to one electric toy 1-1 or 1-2, ensuring that the operating positions of the two people are equal.

[0212] -Internal component configuration: The layout of the miniature water pump 30, control circuit board 27, and lithium battery 29 inside each component box 3-1 and 3-2 is exactly the same as that of the single-person model (water pump 30 on the left, circuit and battery on the right). The inner diameter of the dual water outlet pipes 19-1 and 19-2 is 8mm and matches the water inlet of the DC50E water pump to ensure that the independent water supply flow on both sides is consistent.

[0213] - Liquid container fixing plate: A common circular liquid container fixing plate 18 (diameter 12cm, thickness 3mm) is fixed in the middle of the main frame (located on the center line connecting the two component boxes 3-1 and 3-2). The spacing between the two buckles 17 on the surface of the fixing plate is adjusted to 8cm to adapt to the double water outlet pipe layout of the double-person type liquid container 13.

[0214] (2) Two-person liquid containers and piping

[0215] - Container structure differences: Liquid container 13 adopts a shared mode, and its shape and material are largely the same as the single-person type, but the lower part is equipped with two water outlet pipes 19-1 and 19-2 (3cm apart, both are food-grade silicone tubes with an inner diameter of 8mm and a length of 15cm). Each water outlet pipe corresponds to a miniature water pump 30 of component box 3-1 and 3-2.

[0216] - Pipeline connection: One end of the two outlet pipes 19-1 and 19-2 is respectively press-fitted to the two interfaces at the bottom of the container (depth 5mm), and the other end is inserted into the inlet of the water pump 30 in the two component boxes 3-1 and 3-2 respectively through the pagoda connector (insertion depth 10mm), and each is fixed with pipe clamps to ensure that the two pipelines supply water independently and there is no cross leakage.

[0217] (3) Dual configuration of interactive components

[0218] - Two cups are provided (consistent with the single-person model specifications), which are placed on the cup placement plates 4-1 and 4-2 at the front of the two component boxes 3-1 and 3-2 respectively, with each cup facing the water outlet bend 12-1 and 12-2 of the corresponding component box.

[0219] - Two electric toys (cartoon dog shapes, identical in size) are set up. They are respectively hung on the two fixed posts 21-1 and 21-2 of the common plate 22 by springs 20-1 and 20-2. The electronic wires are respectively connected to the toy drive terminal females 25 of the corresponding component boxes 3-1 and 3-2 to achieve independent linkage.

[0220] 2. Description of the two-person unit structure (emphasizing shared and independent characteristics)

[0221] The dual-person liquid output and electric toy linkage device is designed with "mirror symmetry" as its core structure. Its core features are a shared single container and two independent systems, as detailed below:

[0222] The device only shares one common liquid container 13 in the liquid supply stage (with two independent water outlet pipes 19-1 and 19-2 at the bottom, which are connected to the two side passages respectively). The remaining structural components and circuit systems are designed according to the "dual-path symmetrical distribution": the two symmetrical sides are respectively equipped with independent main component boxes (including micro water pump 30, control circuit board 27, lithium battery 29), independent interactive components (signal trigger component, cup 5, electric toy 1) and independent circuit control system (including power link and signal link).

[0223] The working logic and component connection methods of the two systems are completely independent, with no electrical signal crossing or functional interference. Two children can operate the start buttons 11-1 and 11-2 on their respective sides and view the counts on the independent digital tubes 8-1 and 8-2. After triggering, the water pump on each side outputs liquid and the electric toy 1 starts in linkage, without affecting each other, which is suitable for two-person use scenarios (such as battles and competitions).

[0224] Given that the independent circuit control system, component connection method, and workflow of the two-person device are consistent with the disclosures in the "General Implementation Basis" and "Single-person Device" sections of this manual, with the only difference being the addition of the "public liquid container 13" and the "dual-path symmetrical layout," this section will not repeat the specific structure, circuit details, and workflow of the two-person device. Relevant general details can be directly referred to in the corresponding chapters mentioned above.

[0225] 3. Device Workflow (Two-person type)

[0226] (1). Power-on preparation: Turn on the power switches 10-1 and 10-2 of the two component boxes 3-1 and 3-2. The two control circuit boards 27 are initialized through the synchronous electronic line 28. The digital tubes 8-1 and 8-2 both display "00". Add beverage to the shared liquid container 13 (to 80% capacity to avoid overflow), tighten the lid 16 and lock the combination lock 14. The two children attach the microphone components 6-1 and 6-2 to the speaker holes of their respective language books. Connect them to the signal input ports 23-1 and 23-2 of their respective component boxes through the terminal wires 7-1 and 7-2. The terminal wires automatically recognize the language book signal type (TTL level signal).

[0227] (2). Battle begins: The two children press their respective green start buttons 11-1 and 11-2, and the thyristors on both sides are turned on. The two children operate their respective language books. The sound signals emitted by the language books are collected by the corresponding microphone components 6-1 and 6-2, which trigger their respective CD4518 counting chips to count. The digital tubes 8-1 and 8-2 independently display the count value (e.g., "03" on the left and "02" on the right).

[0228] (3) Winning a drink: When the count on either side reaches 10 (e.g., the left digital tube 8-1 displays "10"), the CD4518 chip on that side outputs a high level to trigger the L298N motor drive module. The left micro water pump 30 starts and outputs 200ml of drink to cup 5-1. At the same time, the left electric toy 1-1 starts the sound and light linkage. The synchronous electronic line 28 sends a "left side reached the target" signal to the right control circuit board 27, and the count on the right side continues. The left CD4518 chip is cleared after a 10-second delay by the M1555 chip, and the digital tube 8-1 returns to "00", waiting for the next trigger.

[0229] (4) End Reset: When the beverage in the liquid container 13 is exhausted or the battle ends, turn off the power switches 10-1 and 10-2 on both sides; disassemble the microphone components 6-1 and 6-2 and clean them, empty the remaining liquid in the cups 5-1 and 5-2; press the cleaning button 15 to start the water pump to run for 30 seconds to flush the pipeline; if you need to play again, repeat the steps of "add beverage - turn on - connect microphone".

[0230] 4. Rules for the Competition of the Two-Player Beverage Prize Machine

[0231] The competition logic of the two-person beverage prize machine is based on the design of "independent operation, shared resources, and more work, more pay". There is no collaborative connection or mutual interference between the two sides. The core rule is not "exclusive competition of either / or", but "competition based on profit difference based on public beverage resources", which is explained in detail below:

[0232] ①. Both sides operate completely independently, without any cooperative interference.

[0233] The two devices are two independent "voice trigger-counting-prize output" systems with no circuit connections or signal interaction: the left and right voicebook triggers counting independently. When the left reaches the threshold and outputs a beverage, it will not trigger the right to reset the count or stop running. Similarly, when the right outputs, the left can still accumulate count normally. There is no limitation that "one side's profit will prevent the other side from profiting". The prize-winning opportunity is determined entirely by the operation frequency of the users on both sides (such as the number of times the voicebook is used).

[0234] ②. Public beverage containers are a shared resource; profits are based on differences in output volume.

[0235] The centrally shared beverage container (1000ml) is the only shared component on both sides. Although the water inlet pipes of the water pumps on both sides are connected to the container simultaneously, there is no "quota restriction" or "output interlock".

[0236] (iv) Supplementary Explanation of Implementation Examples

[0237] 1. Explanation of Undefined Parameters: This embodiment does not limit the specific dimensions (such as height and diameter), component box size, water pipe length, etc. of the liquid container 13. This is because its specific size, length, material, and other parameters can be flexibly selected based on the actual application scenario, user needs and preferences, and the availability of common components in the market. Changes in these parameters will not affect the implementation and realization of the core technical solution of this invention. These parameters may only affect the appearance of the device and the installation space, without changing the core logic of "liquid storage-transmission-output." Those skilled in the art can flexibly adjust these parameters according to the actual scenario (such as the size of a learning machine or the layout of an amusement machine), as long as it ensures that the liquid container 13 is compatible with the installation of the water pump 30 and that the water pipe meets the transmission requirements.

[0238] 2. Explanation of the universality of electronic modules: The sound sensor module, delay circuit module, etc. mentioned in this embodiment are all universal standardized modules (such as KY-037, M1555 delay module). Modules with the same function produced by different manufacturers (such as the sound sensor with model LM393, the delay module with model CD4060) can be directly replaced because the power supply interface (5V) and signal interface (IN / OUT) of these modules conform to industry standards, and the same function can be achieved without modifying the circuit structure.

[0239] 3. Description of Electric Toy 1: In this embodiment, electric toy 1 adopts a cartoon dog shape, but the present invention does not limit the specific shape of the toy (such as cartoon cat, cartoon car, etc.). As long as the toy meets the conditions of "5V power supply, can be fixed by spring 20, and can realize sound and light action", it can be connected to the toy drive terminal female socket 25 to realize linkage function. The cartoon dog shape is only a preferred example for child-friendly design.

[0240] The above two embodiments fully present the mechanical assembly, circuit connection, power and signal link, workflow and scene adaptation details of the present invention, ensuring that those skilled in the art can accurately reproduce the technical solution of the present invention based on this embodiment, combined with the publicly available chip datasheets (such as CD4518, M1555 datasheet) and component specifications, to realize the core function of "liquid output and electric toy linkage", effectively stimulating children's learning and exercise.

Claims

1. A liquid output and electric toy linkage device for use in learning machines and amusement machines (1), characterized in that, Includes a main unit, a liquid container (13), a signal triggering component, an interactive component, and a control module; The host unit, as the core carrier and power control unit, includes a component box (3), a liquid container (13) and a fixing plate, namely a liquid container fixing plate (18), a cup placement plate (4), an electric toy placement plate (2), a micro water pump (30), a control circuit board (27) and a lithium battery (29). The component box (3) is a hollow cuboid structure with a detachable box cover at the rear. The liquid container fixing plate (18), the cup placement plate (4) and the electric toy placement plate (2) are respectively welded to the rear, front and one side of the component box (3). The liquid container (13) is made of food-grade PET material and has a transparent gourd-shaped cartoon design. The top is equipped with a spiral cap (16) with a silicone sealing ring. The inside of the cap (16) is equipped with a cleaning button (15). A plastic lock with a micro combination lock (14) is provided between the container (13) and the cap (16). The bottom is equipped with one or two food-grade silicone water outlet pipes (19) with pagoda connectors. The signal triggering component includes a microphone assembly (6) and a 1.5m long terminal wire (7). One end of the terminal wire (7) is a PH2.0 terminal head, and the other end is soldered to the microphone assembly (6), which can realize sound triggering or command triggering. The interactive components include a food-grade PP cup (5) and a cartoon-shaped electric toy (1). The electric toy (1) integrates a 5V micro motor, LED beads and a speaker, and has a stainless steel spring (20) at the tail. A round hook is welded to the end of the spring (20). The control module is centered on a control circuit board (27) and integrates a power management module with a TP4056 chip, a sound sensor module with a KY-037 model, a delay circuit module with an NE555 chip, a motor drive module with an L298N chip, a counting module with a CD4518 chip plus a CD4511 chip, a 2-digit common cathode seven-segment display (8), a touch-sensitive start button (11) and a power switch (10), a DC-005 charging port female connector (9) and a signal input terminal block (23), a toy drive terminal block (25), a water pump terminal block (24), a lithium battery terminal block (26), and a cleaning button terminal block (28). The lithium battery (29) is a 18650 model. It also has a charge and discharge protection board; the liquid container (13) is fixed by the buckle (17) of the fixed plate, i.e. the liquid container fixed plate (18); the water outlet pipe (19) is connected to the inlet of the micro water pump (30) through the pagoda connector; the water outlet of the water pump (30) is connected to the L-shaped water outlet bend (12) through the food-grade silicone tube; the electric toy (1) is hung on the fixed post (21) of the placement plate, i.e. the electric toy placement plate (2) through the spring (20) and connected to the control circuit board (27); the control circuit board (27), the lithium battery (29) and the water pump (30) are fixed inside the component box (3); the digital tube (8), the start button (11) and the power switch (10) are exposed through the reserved holes in the component box (3).

2. The liquid output and electric toy (1) linkage device applied to learning machines and amusement machines according to claim 1, characterized in that, The device is available in single-person and two-person configurations. The single-person model is a single-channel configuration, containing a component box (3), with a DC50E miniature water pump (30) fixed on the left side inside, a control circuit board (27) and a lithium battery (29) fixed on the right side, a circular liquid container fixing plate (18) welded to the rear, a cup placement plate (4) welded to the front, an electric toy placement plate (2) welded to the right side wall, and equipped with a set of signal trigger components, namely microphone components (6) plus terminal wires (7), a cup (5) and an electric toy (1); The dual-player model features a dual-path symmetrical configuration, comprising two identical and symmetrically distributed component boxes (3-1, 3-2). A common liquid container fixing plate (18) is located in the middle. A common plate (22) is welded to the right side walls of both component boxes (3-1, 3-2). Two electric toy placement plates (2-1, 2-2) are fixed to the surface of the common plate (22). The internal layout of each component box (3-1, 3-2) is consistent with that of the single-player model. It is equipped with two sets of signal triggering components, namely microphone components (6-1, 6-2) and terminal wires (7-1). The container (13) contains 7-2 cups (5-1, 5-2) and 2 electric toys (1-1, 1-2). The liquid container (13) has 2 water outlet pipes (19-1, 19-2) at the bottom, which are connected to the water inlet of the miniature water pump (30) in the two component boxes (3-1, 3-2). The electric toys (1-1, 1-2) and cups (5-1, 5-2) on both sides are adapted to the water outlet bends (12-1, 12-2) of the corresponding component boxes (3-1, 3-2) to ensure independent liquid discharge and linkage feedback.

3. The liquid output and electric toy (1) linkage device applied to learning machines and amusement machines according to claim 1, characterized in that, The power management module of the control module uses a TP4056 chip, the sound sensor module is a KY-037 model with a 10kΩ adjustable resistor, the delay circuit module is composed of an NE555 chip and resistive and capacitive components, the motor drive module uses an L298N chip, and the counting module includes a CD4518 dual BCD counter chip and a CD4511 BCD-seven-segment decoder chip. The control module contains two independent NE555 functional units. The first unit, together with resistors and capacitors, forms a multivibrator to provide a stable 1Hz pulse for the counting module. The second unit acts as a delayed shutdown controller, which counts and outputs a shutdown signal after the drive motor starts.

4. The liquid output and electric toy (1) linkage device applied to learning machines and amusement machines according to claim 1, characterized in that, The cleaning button (15) is connected to the circuit through the cleaning button terminal block (28). One end of the cleaning button terminal block (28) is connected to the VCC terminal of the control circuit board (27), and the other end is connected to the input terminal of the motor drive module, namely the L298N chip. Pressing the cleaning button (15) can bypass the counting module and the delay circuit module and directly drive the water pump (30) to run.

5. The liquid output and electric toy linkage device applied to learning machines and amusement machines according to claim 1, characterized in that, The circuit links of the control module include power supply links, load power supply links, auxiliary module branch circuits, start button (11) - thyristor MCR100-6 model - transistor S8050 model links and signal links; The power supply link includes a charging link and a power supply link. The charging link is external charger → DC-005 charging socket (9) → TP4056 module → lithium battery (29). The power supply link is lithium battery (29) → power switch (10) → control circuit board (27) VCC terminal, and then splits into 5V power supply for the core control module and 5V power supply for the execution drive module. The working logic of the signal link is as follows: external signal → microphone (6) / terminal line (7) → sound sensor, i.e., KY-037 model → NE555 oscillator → CD4518 counter → CD4511 decoder → digital tube (8) display. When the count reaches 10 times, the CD4518 carry terminal outputs a high level → 4148 diode → L298N module, synchronously driving the water pump (30) and electric toy (1). After a delay of 10 seconds, the NE555 outputs a low level, the water pump (30) and electric toy (1) stop, and the CD4518 is cleared.

6. The liquid output and electric toy (1) linkage device applied to learning machines and amusement machines according to claim 2, characterized in that, The two component boxes (3-1, 3-2) of the device are symmetrically distributed in the double-person type. The two electric toy placement plates (2-1, 2-2) on the common plate (22) are arranged according to the independent operation requirements of the two people. The two water outlet pipes (19-1, 19-2) at the bottom of the liquid container (13) are respectively connected to the miniature water pumps (30) in the two component boxes (3-1, 3-2) to ensure independent water supply through two channels. The cups (5-1, 5-2) on both sides are respectively adapted to the water outlet bends (12-1, 12-2) of the corresponding component boxes (3-1, 3-2) to ensure the accuracy of their respective liquid output. The electric toys (1-1, 1-2) on both sides are respectively connected to the control circuit boards (27) of the corresponding component boxes (3-1, 3-2) to realize independent linkage feedback.

7. The liquid output and electric toy (1) linkage device applied to learning machines and amusement machines according to claim 1, characterized in that, The micro water pump (30) is installed in the component box (3), and its working voltage matches the output voltage of the lithium battery (29), and can meet the quantitative output requirements of liquid; the control circuit board (27) conforms to the general design specifications of electronic circuits, ensuring stable circuit conduction; the lithium battery (29) is a rechargeable type with a charge and discharge protection board, and its output voltage is adapted to the working requirements of each component of the device; the motor working voltage of the electric toy (1) matches the output voltage of the control module, and the fluctuation range meets the safety requirements for children's use.

8. The liquid output and electric toy (1) linkage device applied to learning machines and amusement machines according to claim 1, characterized in that, All liquid contact components of the device comply with GB 4806.7-2016 National Food Safety Standard for Plastic Materials and Products for Food Contact; the circuit module is equipped with dual protection, the lithium battery (29) has a built-in charge and discharge protection board, and the motor drive module, i.e., the L298N chip, automatically cuts off power when the current exceeds the set threshold to avoid overload damage; the spring (20) of the electric toy (1) is equipped with a limit structure to prevent children from accidentally touching it and causing the spring (20) to fall off; the terminal wire (7) can switch the trigger mode, and when connected to the learning machine, it can receive the TTL level signal output by the learning machine, and when connected to the amusement machine, it can receive the switch signal output by the amusement machine, so it can be adapted to different scenarios without changing the hardware structure.

9. The liquid output and electric toy (1) linkage device applied to learning machines and amusement machines according to claim 5, characterized in that, In the link of the start button (11) - thyristor MCR100-6 model - transistor S8050 model, the VCC terminal of the control circuit board (27) is connected to the green start button (11) → 1kΩ current limiting resistor → gate of MCR100-6 model thyristor, 10kΩ pull-up resistor is connected to the gate of thyristor → collector of S8050 model NPN transistor → emitter of transistor → common ground, 1kΩ current limiting resistor is connected to the base of transistor, and signal input terminal block (23) is connected to the anode of thyristor → cathode of thyristor → input terminal of sound sensor module KY-037 model; In the signal link, when the NE555 chip is not triggered, it outputs a low level, the transistor is cut off, and the thyristor is in the turn-on state. After pressing the start button (11), the gate of the thyristor receives a trigger current of ≥10μA, the AK gate is turned on, and the signal passes through the sound sensor (KY-037 model) → NE555 oscillator → CD4518 counting. After the count reaches the threshold, CD4518 outputs a high level to trigger L298N. The NE555 starts a 10-second delay and outputs a high level to turn on the transistor and turn off the thyristor.

10. The liquid output and electric toy (1) linkage device applied to learning machines and amusement machines according to claim 1, characterized in that, The core working logic of the control module is as follows: when the power switch (10) and start button (11) are pressed, the device enters the standby state and the digital tube (8) displays "00"; the external signal is transmitted to the sound sensor (KY-037 model) through the signal trigger component (i.e., the microphone (6) and terminal wire (7), and after reaching the threshold, the switch signal is output to the counting module; the CD4518 counts and the CD4511 decodes and drives the digital tube (8) to display; when the count reaches 10 times, the CD4518 carry terminal triggers the motor drive module (i.e., the L298N chip); the motor drive module synchronously drives the water pump (30) to discharge liquid and the electric toy (1) to perform sound and light actions, and supplies power to the delay circuit; the delay circuit outputs a high level to maintain the drive and triggers the count to clear; after the 10-second delay ends, the delay circuit level flips, the motor stops, the count is cleared, and the device returns to standby.

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