Early childhood education toy cleaning and sterilization machine

Abstract

This utility model discloses a cleaning and disinfection machine for early childhood education toys, consisting of a functional component compartment and a cleaning and disinfection compartment. The functional component compartment mainly includes a touch screen, a printer, an electrical control box, a detergent concentrate tank, a disinfectant concentrate tank, a solenoid valve, a flow meter, and a liquid pump. The cleaning and disinfection compartment mainly includes an electric hot air blower, a one-way exhaust vent, a rotating spray arm, a rotating mesh tank, an ultrasonic cleaning and disinfection tank, a shelf, and a liquid storage tank. The two compartments are connected by pipes to form a cleaning system and a disinfection system. The cleaning system includes a branch for detergent concentrate dilution, circulating cleaning, waste liquid discharge, and clean water rinsing of residues. The disinfection system includes a branch for disinfectant concentrate dilution, circulating disinfection, waste liquid discharge, and clean water rinsing of residues. Under the control of the intelligent module in the electrical control box, the machine automatically completes the processes of detergent and disinfectant concentrate dilution, spray soaking and circulating cleaning and disinfection, waste liquid discharge, clean water rinsing of detergent and disinfectant residues, and hot air dehumidification and drying through shared component pipes.

Description

Technical Field

[0001] This utility model relates to the technical field of cleaning and disinfection equipment for early childhood education toys, specifically to a cleaning and disinfection machine suitable for early childhood education toys, and can also be used in medical institutions for cleaning and disinfecting items with medium and low levels of danger. Background Technology

[0002] To cultivate children's spatial structure, color, and sound perception, and to improve their thinking, hands-on, and expressive abilities, early childhood education institutions across the country have equipped themselves with many types of toys for children to learn through play and play through learning, laying a solid foundation for their future in-depth learning. However, with children playing with toys frequently and frequently, the surfaces of the toys inevitably accumulate sweat, bacteria, and viruses from different children's hands. Combined with dust from the environment, this often leads to a large number of bacteria and viruses growing on the toy surfaces. Especially during infectious disease outbreaks, toys often become an important medium for the transmission of viruses in kindergartens.

[0003] To safeguard the health of young children, my country's current "Standards for Health and Hygiene Work in Nurseries and Kindergartens" sets forth strict regulations for health and hygiene work in kindergartens. The appendix, "Preventive Disinfection Methods for the Environment and Items in Childcare Institutions," explicitly stipulates that toys must be disinfected using sodium hypochlorite disinfectants. The concentration should be 100–250 mg / L of available chlorine; surface wiping and soaking should be performed for 10–30 minutes. Disinfection should be carried out at least once a week, depending on the level of contamination. During outbreaks of infectious diseases, daily cleaning and disinfection are required. However, there are currently no dedicated cleaning and disinfection equipment for early childhood education toys in China that meets the aforementioned regulatory requirements. This includes publicly authorized patented products related to toy cleaning and disinfection, such as "A Fully Automatic Plastic Toy Building Block Particle Cleaning Device" (application number 201711411323.X), "A Toy Roller Sterilizer" (application number 201720975862.5), and "A Cleaning and Disinfection Machine for Children's Toys" (application number 202322901778.7). None of these meet the legal requirements for cleaning and disinfection of early childhood education toys. Therefore, kindergartens across the country generally use manual methods for toy cleaning and disinfection. Manual cleaning and disinfection generally suffers from three major drawbacks: first, it is labor-intensive and inefficient; second, the quality of cleaning and disinfection is difficult to guarantee due to the operational skills and professional ethics of cleaning staff; and third, the disinfection process and its effects are difficult to monitor effectively. As a result, the cleaning and disinfection of kindergarten toys has fallen into a dilemma of "high standard requirements" and "low technical support," which seriously restricts the implementation of early childhood education health standards. There is an urgent need to develop and produce specialized cleaning and disinfection equipment for early childhood toys, and to establish a technical system of "precise control, standardized process, and digital monitoring" to help effectively implement early childhood education health regulations and protect the health of children. Summary of the Invention

[0004] To address the lack of compliant preschool toy cleaning and disinfection machines, this utility model provides a preschool toy cleaning and disinfection machine that, under the control of an intelligent module, can achieve fully automated operation of the entire process, including detergent and disinfectant dilution, spray soaking cleaning and disinfection, detergent and disinfectant waste liquid discharge, rinsing with clean water to remove detergent and disinfectant residues, and hot air dehumidification and drying.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: the preschool education toy cleaning and disinfection machine is a cabinet type, consisting of a functional component compartment and a cleaning and disinfection compartment. The functional component compartment mainly houses the power control terminal components, including a touch screen, printer, door lock, electrical control box, detergent concentrate tank, disinfectant concentrate tank, solenoid valve, flow meter, circulating spray pump, circulating filter, and drain pump. The cleaning and disinfection compartment mainly houses the cleaning and disinfection terminal components, including an electric heating fan, one-way exhaust vent, ultrasonic cleaning and disinfection tank, rotating spray arm, rack, rotating mesh tank, and liquid storage tank. It is divided into multiple compartments by longitudinal and transverse beams on the cabinet's exterior facade, each compartment equipped with a viewing window or cabinet door. The functional component compartment and the cleaning and disinfection compartment are connected by pipes, forming the preschool education toy cleaning and disinfection machine. A cleaning system and a disinfection system equipped with a cleaning and disinfection machine; the cleaning system consists of a detergent concentrate dilution branch, a detergent circulation cleaning branch, a detergent waste liquid discharge branch, and a clean water rinsing branch for detergent residue; the disinfection system consists of a disinfectant concentrate dilution branch, a disinfectant circulation disinfection branch, a disinfectant waste liquid discharge branch, and a clean water rinsing branch for disinfectant residue; the cleaning system and the disinfection system share some solenoid valves, filters, liquid pumps, and pipelines. An intelligent control module controls the opening and closing of each normally closed solenoid valve according to a preset program, automatically completing the detergent and disinfectant concentrate dilution, spray soaking circulation cleaning and disinfection, waste liquid discharge, clean water rinsing for detergent and disinfectant residue, and hot air dehumidification and drying operations; the components and connections of each branch of the cleaning system and the disinfection system are as follows:

[0006] The detergent concentrate dilution branch includes a detergent concentrate injection branch and a clean water injection branch. The detergent concentrate injection branch is configured as follows: the outlet of the detergent concentrate tank is connected to the inlet of a detergent concentrate control valve via a pipe; the outlet of the detergent concentrate control valve is connected to the inlet of a detergent flow meter via a pipe; the outlet of the detergent flow meter is connected in parallel to the inlet of a storage tank input pipe via a pipe; and the outlet of the storage tank input pipe is connected to the storage tank. The clean water injection branch is configured as follows: the outlet of an external clean water pipe is connected to the inlet of a clean water control valve; the outlet of the clean water control valve is connected to the inlet of a clean water flow meter via a pipe; the outlet of the clean water flow meter is connected in parallel to the inlet of a storage tank input pipe; and the outlet of the storage tank input pipe is connected to the storage tank.

[0007] The detergent circulation cleaning branch circuit comprises the following components and connections: the inlet end of the suction pipe is installed at the bottom of the storage tank; the outlet end of the suction pipe is connected to the inlet end of the circulation filter; the outlet end of the circulation filter is connected to the inlet end of the circulation spray pump via a pipe; the outlet end of the circulation spray pump is connected to the inlet end of the infusion control valve via a pipe; the outlet end of the infusion control valve is connected to the inlet end of the infusion pipe; the outlet end of the infusion pipe is connected in parallel to the inlet ends of the rotary spray arm control valve and the ultrasonic cleaning and disinfection tank control valve; the outlet end of the rotary spray arm control valve is connected to the rotary spray arm... The inlet end is connected to the rotating spray arm, and the outlet end has multiple spray holes arranged in a row, which are connected to the chamber of the cleaning and disinfection chamber and spray detergent onto the rack or rotating screen. The outlet end of the ultrasonic cleaning and disinfection tank control valve is connected to the inlet end of the ultrasonic cleaning and disinfection tank through a pipe. The outlet end of the ultrasonic cleaning and disinfection tank is connected to the inlet end of the ultrasonic cleaning and disinfection tank discharge control valve. The outlet end of the ultrasonic cleaning and disinfection tank discharge control valve is connected to the chamber of the cleaning and disinfection chamber. The bottom of the chamber of the cleaning and disinfection chamber is equipped with a liquid storage tank to collect detergent, which is then drawn up by the inlet end of the suction pipe.

[0008] The detergent waste liquid discharge branch is as follows: The bottom of the cleaning and disinfection chamber is equipped with a liquid storage tank. The liquid storage tank is connected to the inlet end of the drain pump through a drain pipe. The outlet end of the drain pump is connected to the inlet end of the drain control valve through a pipe. The outlet end of the drain control valve is connected to the external drainage network through a pipe.

[0009] The aforementioned clean water rinsing branch for detergent residue consists of: an external clean water pipe outlet connected to the inlet of a clean water branch control valve; the outlet of the clean water branch control valve is connected in parallel to the inlet of a rotary spray arm control valve and an ultrasonic cleaning and disinfection tank control valve via an infusion pipe; the outlet of the rotary spray arm control valve is connected to the inlet of the rotary spray arm, and the outlet of the rotary spray arm has multiple arranged spray holes that communicate with the chamber of the cleaning and disinfection chamber, spraying clean water onto the rack or rotating mesh bucket; the outlet of the ultrasonic cleaning and disinfection tank control valve is connected to the inlet of the ultrasonic cleaning and disinfection tank via a pipe, and the outlet of the ultrasonic cleaning and disinfection tank is connected to the inlet of the ultrasonic cleaning and disinfection tank discharge control valve, which communicates with the chamber of the cleaning and disinfection chamber; a storage tank is located at the bottom of the chamber of the cleaning and disinfection chamber, and the storage tank is connected to the inlet of a discharge pump via a drain pipe; the outlet of the discharge pump is connected to the inlet of a discharge control valve via a pipe, and the outlet of the discharge control valve is connected to an external drainage network via a pipe.

[0010] The disinfectant concentrate dilution branch includes a disinfectant concentrate injection branch and a clean water injection branch. The components and connections of the disinfectant concentrate injection branch are as follows: the outlet of the disinfectant concentrate tank is connected to the inlet of the disinfectant concentrate control valve via a pipe; the outlet of the disinfectant concentrate control valve is connected to the inlet of a disinfectant flow meter via a pipe; the outlet of the disinfectant flow meter is connected in parallel to the inlet of the storage tank input pipe; and the outlet of the storage tank input pipe is connected to the storage tank. The components and connections of the clean water injection branch are as follows: the outlet of an external clean water pipe is connected to the inlet of a clean water control valve; the outlet of the clean water control valve is connected to the inlet of a clean water flow meter via a pipe; the outlet of the clean water flow meter is connected in parallel to the inlet of the storage tank input pipe; and the outlet of the storage tank input pipe is connected to the storage tank.

[0011] The disinfectant circulation disinfection branch: The components and connection method of this branch are the same as those of the aforementioned detergent circulation cleaning branch.

[0012] The disinfectant waste liquid discharge branch: The components and connection method of this branch are the same as those of the aforementioned detergent waste liquid discharge branch.

[0013] The aforementioned water rinsing disinfectant residue branch: The components and connection method of this branch are the same as those of the aforementioned water rinsing detergent residue branch.

[0014] The aforementioned liquid storage tank is located at the bottom of the cleaning and disinfection chamber and is used to collect detergent, disinfectant or clean water after spraying and soaking operations for recycling or centralized discharge.

[0015] The hot air dehumidification and drying process is mainly accomplished by a functional system consisting of an electric hot air blower, a one-way exhaust vent, and an electrical control box. The electric hot air blower is installed on the inner wall of the cleaning and disinfection chamber, with its air inlet leading to the outside atmosphere and its air outlet leading to the inside of the cleaning and disinfection chamber. The one-way exhaust vent is also installed on the inner wall of the cleaning and disinfection chamber, with its air inlet leading to the inside of the chamber and its air outlet leading to the outside atmosphere. When the electric hot air blower is started, the one-way exhaust vent opens simultaneously, expelling the mixed gas containing water vapor from each chamber of the cleaning and disinfection chamber to the outside, thus completing the dehumidification and drying operation. The electrical control box connects to various electrical control components of the early childhood education toy cleaning and disinfection machine via wires, including a touch screen, printer, door lock, electric hot air blower, one-way exhaust vent, rotating mesh tank, ultrasonic cleaning and disinfection tank, and various solenoid valves, flow meters, liquid pumps, and sensors. Through its intelligent module's preset program, it controls the automatic execution of each operation process.

[0016] The rotating spray arm is installed above each layer of shelves and rotating net barrel in the cleaning and disinfection chamber, and is used to perform rotating spray cleaning and disinfection operations on the toys on the shelves and in the rotating net barrel.

[0017] The rotating mesh drum is made of stainless steel mesh, with a small opening and a large bottom, and is cylindrical in shape. The bottom plane is parallel to the interior wall panel of the cleaning and disinfection chamber. A direct drive motor is installed on the interior wall panel of the cleaning and disinfection chamber, and the bottom center of the rotating mesh drum is fixedly mounted on the shaft of the direct drive motor. The opening of the rotating mesh drum faces the cabinet door of the cleaning and disinfection chamber, which allows for easy addition or removal of toys for cleaning and disinfection. It is mainly suitable for cleaning and disinfecting pluggable and plush toys.

[0018] The ultrasonic cleaning and disinfection tank is fixedly installed inside the cleaning and disinfection chamber and is used for soaking, cleaning, and disinfecting toys.

[0019] The aforementioned shelf is installed inside the cleaning and disinfection chamber and is used to place toys that are being cleaned and disinfected.

[0020] Based on the above technical solution, this utility model of a preschool toy cleaning and disinfection machine, through the sharing of some components and pipelines, and under the control of the intelligent module in the electrical control box, controls the opening and closing of each normally closed solenoid valve according to a preset program to realize each process step. It automatically completes the entire process of detergent and disinfectant stock solution dilution, spray soaking and circulating cleaning and disinfection, detergent and disinfectant waste liquid discharge, clean water rinsing of detergent and disinfectant residues, and hot air dehumidification and drying. Compared with existing technology and equipment, the beneficial effects of this utility model are: it makes up for the shortcomings of existing manual cleaning and disinfection equipment such as disinfection tanks and disinfection buckets, and can replace the current manual operation method to automatically clean and disinfect various preschool toys. It not only reduces the labor intensity of manual operation, but also improves work efficiency and cleaning and disinfection quality assurance. It can effectively promote the implementation of national preschool health standards, and will have a positive effect on protecting the health of children. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, although the accompanying drawings described below are schematic diagrams of the principle structure of this utility model, rather than specific product structure embodiments, those skilled in the art can obtain the structural diagram of the actual product or a modified schematic diagram of the principle structure by simple transformations and adjustments based on these schematic diagrams without creative effort.

[0022] Figure 1 3D diagram of a preschool toy cleaning and disinfection machine;

[0023] Figure 2 Left three-view image of an early childhood education toy cleaning and disinfection machine;

[0024] Figure 3 Schematic diagram of the cleaning and disinfection system;

[0025] Figure 4 Schematic diagram of the functional component compartment structure;

[0026] Figure 5 Schematic diagram of the cleaning and disinfection chamber;

[0027] Figure 6 Schematic diagram of a rotating mesh drum.

[0028] In the attached diagram, the component names represented by each number are as follows:

[0029] 1-Functional component compartment, 2-Cleaning and disinfection compartment, 3-Touch screen, 4-Printer, 5-Door lock, 6-Viewing cabinet door, 7-Storage tank, 8-Electric heating blower, 9-One-way exhaust vent, 10-Electrical control box, 11-Detergent concentrate tank, 12-Disinfectant concentrate tank, 13-Circulating filter, 14-Circulating spray pump, 15-Drain pump, 16-Rotating spray arm, 17-Rotating mesh tank, 18-Ultrasonic cleaning and disinfection tank, 19-Shelf, 20-Detergent concentrate control valve, 21-Detergent flow meter, 22-Storage tank inlet pipe, 23-External clean water pipe, 24-Clean water... 25-Water control valve, 26-Clean water flow meter, 27-Suction pipe, 28-Infusion control valve, 29-Infusion pipe, 30-Rotating spray arm control valve, 31-Ultrasonic cleaning and disinfection tank control valve, 32-Clean water branch control valve, 33-Drain pipe, 34-Drain control valve, 35-Disinfectant concentrate control valve, 36-Disinfectant flow meter, 37-Interior wall panel of the cabin, 38-Direct drive motor, 39-Detergent concentrate flow direction, 40-Detergent flow direction, 41-Disinfectant concentrate flow direction, 42-Disinfectant flow direction, 43-Clean water flow direction. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention. Of course, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] In the description of this utility model, the clean water refers to tap water that meets or exceeds the national drinking water standards. Terms such as "inner side," "outer side," "upper," "lower," "middle," "front," and "rear," which indicate orientation or positional relationship, are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components referred to must have a specific orientation or must be operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] It is particularly important to clarify that:

[0033] 1. This utility model is designed in accordance with the requirements of the "Standards for Hygiene and Health Care Work in Nurseries and Kindergartens" in my country, specifically addressing the cleaning and disinfection needs of early childhood education toys. By precisely controlling the concentration of disinfectant and the soaking / spraying time, it can meet the legal requirements of the "Preventive Disinfection Methods for Environment and Items in Childcare Institutions".

[0034] 2. In this specific embodiment, a sodium hypochlorite disinfectant with an available chlorine concentration of 100–250 mg / L is selected. However, this is not a limitation on the range of disinfectants applicable to this utility model patent. Any equivalent principle, structural, or procedural changes made based on the description and drawings of this utility model, or the use of other disinfectants with similar or superior performance, such as peracetic acid or chlorine dioxide, as substitutes, are all within the scope of this utility model overview and the corresponding patent protection.

[0035] 3. Given the large variety and quantity of toys in each class of early childhood education institutions, and considering the requirements for load balance and stable operation of the cleaning and disinfection machine, the cleaning and disinfection chamber of the early childhood toy cleaning and disinfection machine in this embodiment is preferably a six-chamber type. However, this is not a limitation on the number of chambers of the product of this utility model. Any equivalent principle, structure or process transformation made using the contents of this utility model specification and drawings is also within the scope of protection of this utility model overview and the corresponding patent rights.

[0036] Figure 1 A three-dimensional schematic diagram of a preschool education toy cleaning and disinfection machine. This utility model is a cabinet-type preschool education toy cleaning and disinfection machine. The cabinet consists of a functional component compartment 1 and a cleaning and disinfection compartment 2. The front of the functional component compartment is equipped with a touch screen 3 and a printer 4, and the right side is equipped with a door and a lock 5. The printer 4 automatically records key parameters in the cleaning and disinfection process, including the operation date, duration, concentration, temperature, and other data, reducing errors from manual recording and fulfilling the functional requirements of archiving, reviewing, and tracing the cleaning and disinfection status. The cleaning and disinfection compartment 2 is divided into six chambers by the longitudinal and transverse beams on the exterior of the cabinet. Each chamber is equipped with a viewing window 6, which is made of transparent and sturdy material, hollow, soundproof, and heat-insulating, allowing monitoring of the cleaning and disinfection operation status in each chamber of the cleaning and disinfection compartment 2. The bottom of the cleaning and disinfection compartment 2 is equipped with a liquid storage tank 7, which is used to collect detergent, disinfectant, or clean water after spraying and soaking operations for recycling or centralized discharge.

[0037] Figure 2The left-hand three-view drawing of the preschool toy cleaning and disinfection machine shows that the left side of the cleaning and disinfection chamber 2 is equipped with an electric heating blower 8 and a one-way exhaust vent 9. The air inlet of the electric heating blower 8 is open to the outside atmosphere, and the air outlet is connected to each compartment of the cleaning and disinfection chamber 2. When started, it can input filtered and purified heated air into each compartment of the cleaning and disinfection chamber 2. The main components include a purified air filter, a fan, an electric heating element, and a protective cover. The air inlet of the one-way exhaust vent 9 is connected to each compartment of the cleaning and disinfection chamber 2, and the air outlet is open to the outside atmosphere. When the electric heating blower 8 is started, the one-way exhaust vent 9 opens at the same time, expelling the mixed gas containing water vapor in the cleaning and disinfection chamber 2 to the outside of the machine, completing the dehumidification and drying operation.

[0038] Figure 3 The schematic diagram of the cleaning and disinfection system mainly shows the connection relationships of each branch and component, specifically including: Functional component compartment 1 mainly houses the power control components, including an electrical control box 10, detergent concentrate tank 11, disinfectant concentrate tank 12, circulating filter 13, circulating spray pump 14, drain pump 15, and multiple solenoid valves and flow meters; Cleaning and disinfection compartment 2 mainly houses the cleaning and disinfection components, including a liquid storage tank 7, electric heating blower 8, one-way exhaust vent 9, ultrasonic cleaning and disinfection tank 18, rotating mesh tank 17, rotating spray arm 16, and rack 19. Each compartment of the cleaning and disinfection system can perform unified cleaning and disinfection operations according to the system settings, or it can perform cleaning and disinfection operations independently; the doors of each compartment of the cleaning and disinfection system can be opened freely under normal conditions, but the system automatically seals and locks them during operation until completion. The functional component compartment 1 and the cleaning and disinfection compartment 2 are connected by pipes to form the cleaning system and disinfection system of the preschool education toy cleaning and disinfection machine. The cleaning system consists of a detergent concentrate dilution branch, a detergent circulation cleaning branch, a detergent waste liquid discharge branch, and a clean water rinsing branch for detergent residue. The disinfection system consists of a disinfectant concentrate dilution branch, a disinfectant circulation disinfection branch, a disinfectant waste liquid discharge branch, and a clean water rinsing branch for disinfectant residue. Each branch of the cleaning system and each branch of the disinfection system share some solenoid valves, flow meters, liquid pumps, and pipes. Each solenoid valve is normally closed. The cleaning and disinfection system uses an intelligent control module to control the opening and closing of each normally closed solenoid valve according to a preset program to achieve each process step. The components and connections of each branch are as follows:

[0039] The detergent concentrate dilution branch includes a detergent concentrate injection branch and a clean water injection branch. The detergent concentrate injection branch is configured as follows: the outlet of the detergent concentrate tank 11 is connected to the inlet of the detergent concentrate control valve 20 via a pipe; the outlet of the detergent concentrate control valve 20 is connected to the inlet of the detergent flow meter 21 via a pipe; the outlet of the detergent flow meter 21 is connected in parallel to the inlet of the storage tank input pipe 22; and the outlet of the storage tank input pipe 22 is connected to the storage tank 7. The clean water injection branch is configured as follows: the outlet of the external clean water pipe 23 is connected to the inlet of the clean water control valve 24; the outlet of the clean water control valve 24 is connected to the inlet of the clean water flow meter 25 via a pipe; the outlet of the clean water flow meter 25 is connected in parallel to the inlet of the storage tank input pipe 22; and the outlet of the storage tank input pipe 22 is connected to the storage tank 7.

[0040] The detergent circulation cleaning branch circuit is as follows: The inlet end of the suction pipe 26 is installed at the bottom of the storage tank 7; the outlet end of the suction pipe 26 is connected to the inlet end of the circulation filter 13; the outlet end of the circulation filter 13 is connected to the inlet end of the circulation spray pump 14 via a pipe; the outlet end of the circulation spray pump 14 is connected to the inlet end of the infusion control valve 27 via a pipe; the outlet end of the infusion control valve 27 is connected to the inlet end of the infusion pipe 28; the outlet end of the infusion pipe 28 is connected in parallel to the inlet ends of the rotary spray arm control valve 29 and the ultrasonic cleaning and disinfection tank control valve 30; the outlet end of the rotary spray arm control valve 29 is connected to the rotary spray... The inlet end of the rotating spray arm 16 is connected to the outlet end of the rotating spray arm 16, which has multiple spray holes arranged in a row. It communicates with the chamber of the cleaning and disinfection chamber 2 and sprays detergent onto the rotating mesh drum 17 or the rack 19. The outlet end of the ultrasonic cleaning and disinfection tank control valve 30 is connected to the inlet end of the ultrasonic cleaning and disinfection tank 18 through a pipe. The outlet end of the ultrasonic cleaning and disinfection tank 18 is connected to the inlet end of the ultrasonic cleaning and disinfection tank discharge control valve 31. The outlet end of the ultrasonic cleaning and disinfection tank discharge control valve 31 communicates with the chamber of the cleaning and disinfection chamber 2. The bottom of the chamber of the cleaning and disinfection chamber 2 is provided with a liquid storage tank 7 to collect detergent for the inlet end of the suction pipe 26 to draw detergent.

[0041] The detergent waste liquid discharge branch is as follows: The bottom of the cleaning and disinfection chamber 2 is provided with a liquid storage tank 7. The liquid storage tank 7 is connected to the inlet end of the drain pump 15 through a drain pipe 33. The outlet end of the drain pump 15 is connected to the inlet end of the drain control valve 34 through a pipe. The outlet end of the drain control valve 34 is connected to the external drainage network through a pipe.

[0042] The aforementioned clean water rinsing branch for detergent residue: the outlet end of the external clean water pipe 23 is connected to the inlet end of the clean water branch control valve 32. The outlet end of the clean water branch control valve 32 is connected in parallel to the inlet ends of the rotary spray arm control valve 29 and the ultrasonic cleaning and disinfection tank control valve 30 via the infusion pipe 28. The outlet end of the rotary spray arm control valve 29 is connected to the inlet end of the rotary spray arm 16. The outlet end of the rotary spray arm 16 has multiple arranged spray holes, which are connected to the chamber of the cleaning and disinfection chamber 2, and spray clean water onto the rotating mesh tank 17 or the rack 19. The ultrasonic cleaning and disinfection tank control valve 30... The outlet end of the ultrasonic cleaning and disinfection tank 18 is connected to the inlet end of the ultrasonic cleaning and disinfection tank 18 via a pipe. The outlet end of the ultrasonic cleaning and disinfection tank 18 is connected to the inlet end of the ultrasonic cleaning and disinfection tank discharge control valve 31. The outlet end of the ultrasonic cleaning and disinfection tank discharge control valve 31 is connected to the chamber of the cleaning and disinfection chamber 2. The bottom of the chamber of the cleaning and disinfection chamber 2 is provided with a liquid storage tank 7. The drain port of the liquid storage tank 7 is connected to the inlet end of the drain pump 15 via a pipe. The outlet end of the drain pump 15 is connected to the inlet end of the drain control valve 34 via a pipe. The outlet end of the drain control valve 34 is connected to the external drainage network via a pipe.

[0043] The disinfectant concentrate dilution branch includes a disinfectant concentrate injection branch and a clean water injection branch. The components and connections of the disinfectant concentrate injection branch are as follows: the outlet of the disinfectant concentrate tank 12 is connected to the inlet of the disinfectant concentrate control valve 35 via a pipe; the outlet of the disinfectant concentrate control valve 35 is connected to the inlet of the disinfectant flow meter 36 via a pipe; the outlet of the disinfectant flow meter 36 is connected in parallel to the inlet of the storage tank input pipe 22; and the outlet of the storage tank input pipe 22 is connected to the storage tank 7. The components and connections of the clean water injection branch are as follows: the outlet of the external clean water pipe 23 is connected to the inlet of the clean water control valve 24; the outlet of the clean water control valve 24 is connected to the inlet of the clean water flow meter 25 via a pipe; the outlet of the clean water flow meter 25 is connected in parallel to the inlet of the storage tank input pipe 22; and the outlet of the storage tank input pipe 22 is connected to the storage tank 7.

[0044] The disinfectant circulation disinfection branch: The components and connection method of this branch are the same as those of the aforementioned detergent circulation cleaning branch.

[0045] The disinfectant waste liquid discharge branch: The components and connection method of this branch are the same as those of the aforementioned detergent waste liquid discharge branch.

[0046] The aforementioned water rinsing disinfectant residue branch: The components and connection method of this branch are the same as those of the aforementioned water rinsing detergent residue branch.

[0047] The liquid storage tank 7 is located at the bottom of the cleaning and disinfection chamber 2 and is used to collect detergent, disinfectant or clean water after spraying and soaking operations for recycling or centralized discharge.

[0048] The hot air dehumidification and drying process is mainly accomplished by a functional system consisting of an electric blower 8, a one-way exhaust vent 9, and an electrical control box 10. The electric blower 8 is installed on the inner wall of the cleaning and disinfection chamber 2, with its air inlet leading to the outside atmosphere and its air outlet leading to the interior of the cleaning and disinfection chamber 2. The one-way exhaust vent 9 is also installed on the inner wall of the cleaning and disinfection chamber 2, with its air inlet leading to the interior of the cleaning and disinfection chamber 2 and its air outlet leading to the outside atmosphere. When the electric blower 8 is started, the one-way exhaust vent 9 opens simultaneously, expelling the mixed gas containing water vapor from each chamber of the cleaning and disinfection chamber 2 to the outside, thus completing the dehumidification and drying operation. The electrical control box 10 connects to various electrical control components of the early childhood education toy cleaning and disinfection machine via wires, including a touch screen 3, a printer 4, a door lock 5, the electric blower 8, the one-way exhaust vent 9, the rotating mesh tank 17, the ultrasonic cleaning and disinfection tank 18, and various solenoid valves, flow meters, liquid pumps, and sensors. Through its intelligent module's preset program, it controls the automatic execution of each operation process.

[0049] The rotating spray arm 16 is installed above each layer of shelves 19, rotating mesh barrel 17, and ultrasonic cleaning and disinfection tank 18 in the cleaning and disinfection chamber 2, and is used to perform rotating spray cleaning and disinfection operations on the toys on the layer of shelves 19 and the toys in the rotating mesh barrel 17 and ultrasonic cleaning and disinfection tank 18.

[0050] The rotating mesh tub 17 is made of stainless steel mesh, with a small opening and a large bottom, and is shaped like a hollow cylinder. It is mainly suitable for cleaning and disinfecting plug-and-play and plush toys. The bottom plane of the rotating mesh tub 17 is parallel to the interior wall panel 37 of the cleaning and disinfection chamber 2. A direct drive motor 38 is installed on the back of the interior wall panel 37 of the cleaning and disinfection chamber 2, and the bottom center of the rotating mesh tub 17 is fixedly installed on the shaft of the direct drive motor 38. The opening of the rotating mesh tub 17 faces the cabinet door of the cleaning and disinfection chamber 2, which allows for easy addition or removal of toys for cleaning and disinfection. During the detergent cleaning, disinfectant disinfection, water rinsing and electric hot air drying operations, the rotating mesh tub 17 rotates at low speed. After completing the detergent cleaning, disinfectant disinfection and water rinsing operations, the rotating mesh tub 17 rotates at high speed for a short time according to the system program to drain the detergent, disinfectant and water.

[0051] The ultrasonic cleaning and disinfection tank 18 is fixedly installed inside the cleaning and disinfection chamber 2 and is used for soaking, cleaning and disinfecting toys.

[0052] The rack 19 is installed inside the cleaning and disinfection chamber 2 and is used to place toys to be cleaned and disinfected.

[0053] Based on the above technical solution, and according to the working sequence and the pipeline flow paths of detergent concentrate, detergent, disinfectant concentrate, disinfectant, and clean water, the working process of this utility model's preschool education toy cleaning and disinfection machine is as follows:

[0054] Start-up: Confirm that the electrical control box 10 is connected to the external power supply, the external clean water pipe 23 is connected to the external water source, and the detergent concentrate tank 11 and disinfectant concentrate tank 12 have been filled with concentrate. Then, according to the different characteristics of the toys to be cleaned and disinfected, place them on the rotating mesh tank 17, the ultrasonic cleaning and disinfection tank 18, or the rack 19 respectively. The system defaults to performing uniform standard cleaning and disinfection operations in each compartment of the cleaning and disinfection chamber. If there are any differences, manual settings can be made through the touch screen 3 before starting the operation.

[0055] Detergent concentrate dilution: The control module of the electrical control box 10 simultaneously opens the detergent concentrate control valve 20 and the detergent concentrate flow meter 21. Under the action of gravitational potential energy, the detergent concentrate flows from the detergent concentrate tank 11, through the detergent concentrate control valve 20 and the detergent concentrate flow meter 21, into the storage tank inlet pipe 22, and then down into the storage tank 7; the corresponding path is shown in detergent concentrate flow direction 39. After the detergent concentrate flow rate reaches the threshold set by the system, the detergent concentrate control valve 20 and the detergent concentrate flow meter 21 are immediately closed. At the same time, the system opens the clean water control valve 24 and the clean water flow meter 25, and external clean water flows into the storage tank inlet pipe 22, and then down into the storage tank 7; the corresponding path is shown in clean water flow direction 43. After the input clean water flow rate reaches the threshold set by the system, the clean water control valve 24 and the clean water flow meter 25 are simultaneously closed, completing the detergent concentrate dilution operation.

[0056] Detergent circulation cleaning: The control module of the electrical control box 10 simultaneously activates the circulating spray pump 14, the infusion control valve 27, the rotary spray arm control valve 29, and the ultrasonic cleaning and disinfection tank control valve 30. Detergent in the storage tank 7 enters through the inlet of the suction pipe 26, flowing sequentially through the circulating filter 13, the circulating spray pump 14, the infusion control valve 27, the infusion pipe 28, the rotary spray arm control valve 29, and the ultrasonic cleaning and disinfection tank control valve 30 before entering the rotary spray arm 16 and the ultrasonic cleaning and disinfection tank 18 for detergent cleaning. During the soaking cleaning period, the ultrasonic cleaning and disinfection tank discharge control valve 3... 1. Keep the system closed, allowing detergent to remain in the ultrasonic cleaning and disinfection tank 18 for ultrasonic soaking cleaning of the toys. After soaking and cleaning, the system opens the ultrasonic cleaning and disinfection tank discharge control valve 31, allowing detergent to flow into the storage tank 7 under gravity. The rotating spray arm 16 sprays detergent onto the toys in the rack 19 or rotating net bucket 17 while rotating, and simultaneously, the detergent, under gravity, continuously falls to the bottom of the chamber and collects in the storage tank 7, completing the first cycle cleaning. This process is then repeated multiple times according to the system settings to complete the detergent cycle cleaning operation. The corresponding path is shown in detergent flow direction 40.

[0057] Detergent waste discharge: After the toy detergent cleaning is completed, the system simultaneously starts the drain pump 15 and the drain control valve 34. The detergent waste in the storage tank 7 is discharged outside the machine through the drain pipe 33, the drain pump 15, and the drain control valve 34, and enters the external drainage network; the corresponding path is shown in detergent flow direction 40.

[0058] Rinsing detergent residue with clean water: After the detergent waste liquid is discharged, the system simultaneously opens the clean water diversion control valve 32, the rotary spray arm control valve 29, the ultrasonic cleaning and disinfection tank control valve 30, the ultrasonic cleaning and disinfection tank discharge control valve 31, the drain pump 15, and the drain control valve 34. External clean water enters each compartment of the cleaning and disinfection chamber 2 from the external clean water pipe 23 along the open pipeline through the clean water diversion control valve 32, the delivery pipe 28, the rotary spray arm control valve 29, the ultrasonic cleaning and disinfection tank control valve 30, and the ultrasonic cleaning and disinfection tank discharge control valve 31. After spraying and soaking the toys, the water flows into the storage tank 7 and is then discharged outside the machine through the drain pump 15 and the drain control valve 34, entering the external drainage network to complete the first clean water rinse. When the clean water rinsing time for detergent residue or the concentration of the discharged residual liquid reaches the threshold set by the system, the clean water rinsing operation is completed. The corresponding path is shown in the clean water flow direction 43.

[0059] Disinfectant concentrate dilution: The control module of the electrical control box 10 simultaneously opens the disinfectant concentrate control valve 35 and the disinfectant concentrate flow meter 36. Under the action of gravitational potential energy, the disinfectant concentrate flows from the disinfectant concentrate tank 12, through the disinfectant concentrate control valve 35 and the disinfectant concentrate flow meter 36, into the storage tank inlet pipe 22, and then down into the storage tank 7; the corresponding path is shown in the disinfectant concentrate flow direction 41. After the disinfectant concentrate flow rate reaches the system-set threshold, the disinfectant concentrate control valve 35 and the disinfectant concentrate flow meter 36 are immediately closed. At the same time, the system opens the clean water control valve 24 and the clean water flow meter 25, and external clean water flows into the storage tank inlet pipe 22, and then down into the storage tank 7; the corresponding path is shown in the clean water flow direction 43. After the input clean water flow rate reaches the system-set threshold, the clean water control valve 24 and the clean water flow meter 25 are simultaneously closed, completing the disinfectant concentrate dilution operation.

[0060] Disinfectant circulation disinfection: The control module of the electrical control box 10 simultaneously activates the circulating spray pump 14, the infusion control valve 27, the rotating spray arm control valve 29, and the ultrasonic cleaning and disinfection tank control valve 30. The disinfectant in the storage tank 7 enters through the inlet of the suction pipe 26, flows successively through the circulating filter 13, the circulating spray pump 14, the infusion control valve 27, the infusion pipe 28, the rotating spray arm control valve 29, and the ultrasonic cleaning and disinfection tank control valve 30, and enters the rotating spray arm 16 and the ultrasonic cleaning and disinfection tank 18 for disinfection. While rotating, the rotating spray arm 16 sprays disinfectant onto the toys in the shelf 19 or the rotating mesh tank 17. Meanwhile, under the influence of gravity, the disinfectant continuously falls to the bottom of the chamber and flows into the storage tank 7. During the immersion disinfection operation, the ultrasonic cleaning and disinfection tank 18 keeps the discharge control valve 31 closed. After the immersion disinfection is completed, the system opens the ultrasonic cleaning and disinfection tank discharge control valve 31, and the disinfectant flows into the storage tank 7 under the influence of gravity. The corresponding path of the disinfectant flow is shown in the disinfectant flow direction 42. The system is set to repeat this cycle until the duration reaches the disinfection time requirement (e.g., 10-30 minutes) specified in the "Preventive Disinfection Methods for Environment and Items in Childcare Institutions", and the cyclic disinfection operation is completed.

[0061] Disinfectant waste liquid discharge: After the above-mentioned disinfection of toys is completed, the system simultaneously starts the drain pump 15 and the drain control valve 34, and the disinfectant waste liquid in the storage tank 7 is discharged outside the machine and enters the external drainage network; the corresponding path is shown in the disinfectant flow direction 42.

[0062] Rinse off disinfectant residue with clean water: To remove disinfectant residue, toys need to be rinsed with clean water after disinfection. The specific procedure is the same as the procedure for rinsing off detergent residue with clean water mentioned above.

[0063] Hot air dehumidification and drying: After rinsing off disinfectant residue with clean water, the system immediately starts the electric hot air blower 8 and the one-way exhaust vent 9 to dehumidify and dry the water adsorbed or attached to the toys. During this process, the rotating mesh drum 17 keeps rotating at a low speed. When the system displays that the humidity in the cleaning and disinfection chamber has dropped to the set threshold to ensure the toys are dry, the system turns off the electric hot air blower 8 and the one-way exhaust vent 9 to complete the dehumidification and drying operation. At this point, the cleaning and disinfection operation of a single batch of toys is completed.

[0064] Figure 4The schematic diagram of the functional component compartment is a schematic diagram of one embodiment of the internal structure of functional component compartment 1. The front wall panel of functional component compartment 1 is fitted with a touch screen 3 and a printer 4. The right side is equipped with a door and a door lock 5. The interior is divided into upper and lower layers by a partition. The upper layer contains an electrical control box 10, a detergent concentrate tank 11, and a disinfectant concentrate tank 12. The lower layer contains solenoid valves, flow meters, liquid pumps, filters, and their connecting pipes that constitute the cleaning and disinfection system. The connection relationship of each component is as follows: the bottom outlet of the detergent concentrate tank 11 is connected to the inlet of the detergent concentrate control valve 20 through a pipe; the outlet of the detergent concentrate control valve 20 is connected to the inlet of the detergent flow meter 21 through a pipe; and the outlet of the detergent flow meter 21 is connected in parallel to the liquid storage tank input pipe 2. The inlet end of the storage tank input pipe 22 is connected to the storage tank 7 by passing downward through the bulkhead. The bottom outlet of the disinfectant concentrate tank 12 is connected to the inlet end of the disinfectant concentrate control valve 35 via a pipe. The outlet end of the disinfectant concentrate control valve 35 is connected to the inlet end of the disinfectant flow meter 36 via a pipe. The outlet end of the disinfectant flow meter 36 is connected in parallel to the inlet end of the storage tank input pipe 22. The outlet end of the storage tank input pipe 22 passes downward through the bulkhead and connects to the storage tank 7. The outlet end of the external clean water pipe 23 is connected to the inlet end of the clean water control valve 24. The outlet end of the clean water control valve 24 is connected to the inlet end of the clean water flow meter 25 via a pipe. The outlet end of the clean water flow meter 25 is connected in parallel to the inlet end of the storage tank input pipe 22. The outlet end of the storage tank input pipe 22 is connected to the inlet end of the storage tank 7 by passing downward through the bulkhead. The suction pipe 26 passes through the cabin wall and connects to the storage tank 7; the inlet end of the suction pipe 26 is installed at the bottom of the storage tank 7 in the cleaning and disinfection chamber 2, and the outlet of the pipe passes through the cabin wall and enters the functional component chamber 1, connecting to the inlet end of the circulating filter 13. The outlet end of the circulating filter 13 is connected to the inlet end of the circulating spray pump 14 through a pipe. The outlet end of the circulating spray pump 14 is connected to the inlet end of the infusion control valve 27 through a pipe. The outlet end of the infusion control valve 27 is connected to the inlet end of the infusion pipe 28. The outlet end of the infusion pipe 28 passes upward through the cabin wall and enters the cleaning and disinfection chamber 2, where it is connected in parallel with the inlet ends of the rotating spray arm control valve 29 and the ultrasonic cleaning and disinfection tank control valve 30. The outlet end of the external clean water pipe 23 is connected to the inlet end of the clean water diversion control valve 32. The outlet end of the clean water diversion control valve 32 is connected to the inlet end of the infusion pipe 28. The outlet of the liquid control valve 27 is connected in parallel to the inlet of the infusion pipe 28; the inlet of the drain pipe 33 is installed at the bottom of the storage tank 7 in the cleaning and disinfection chamber 2, and the outlet of the pipe passes through the chamber wall and enters the functional component chamber 1 to connect to the inlet of the drain pump 15. The outlet of the drain pump 15 is connected to the inlet of the drain control valve 34 through a pipe, and the outlet of the drain control valve 34 is connected to the external drainage network through a pipe; the electrical control box 10 is connected to various electrical control components of the preschool toy cleaning and disinfection machine through wires, including a touch screen 3, a printer 4, a door lock 5, an electric hair dryer 8, a one-way exhaust vent 9, a rotating mesh tank 17, an ultrasonic cleaning and disinfection tank 18, and various solenoid valves, flow meters, liquid pumps, and sensors, and controls the automatic operation of each process through the preset program of its intelligent module.

[0065] Figure 5 The schematic diagram of the cleaning and disinfection chamber is a schematic diagram of an internal structure embodiment of the cleaning and disinfection chamber 2. Two ultrasonic cleaning and disinfection tanks 18 are placed in the chambers on both sides of the lower layer of the cleaning and disinfection chamber 2. The upper and lower chambers in the middle are rotating mesh barrels 17. The other two chambers are equipped with three load racks 19 respectively. This arrangement can lower the center of gravity, increase the stability of the cleaning and disinfection machine, and also effectively increase the load and expand the types of toys that can be cleaned and disinfected.

[0066] Figure 6 A schematic diagram of the rotating mesh tub is shown. The rotating mesh tub 17 is made of stainless steel mesh, with a small opening and a large bottom, resembling a hollow cylindrical shape. Detergent, disinfectant, and water sprayed by the rotating spray arm 16 can be sprayed onto the toys contained within, while simultaneously flowing out of the rotating mesh tub 17 through the perforated mesh. The bottom plane of the rotating mesh tub 17 is parallel to the interior wall panel 37 of the cleaning and disinfection chamber 2. A direct drive motor 38 is mounted on the back of the corresponding interior wall panel 37 of the cleaning and disinfection chamber 2. The shaft of the direct drive motor 38 passes through the interior wall panel 37 of the cleaning and disinfection chamber 2 and... The rotating mesh drum 17 is fixedly connected to the center of its bottom; the opening of the rotating mesh drum 17 faces the cabinet door of the cleaning and disinfection chamber 2, allowing for easy addition or removal of toys for cleaning and disinfection; it is mainly suitable for cleaning and disinfecting plug-and-play and plush toys; during the cleaning, disinfection, and rinsing operations, the rotating mesh drum 17 rotates at a low speed; at the end of each of the above operations, the rotating mesh drum 17 rotates at a high speed for a short period of time; after the detergent, disinfectant, and water are drained, during the hot air dehumidification and drying period, the rotating mesh drum 17 rotates at a low speed until drying is complete and then stops rotating.

[0067] The above description of embodiments in this specification indicates that specific features, structures, materials, or characteristics of this utility model are included in at least one embodiment of this utility model. Furthermore, the described specific features and structures can be combined in any suitable manner in one or more embodiments, including the vertical and horizontal spatial combinations between the functional component compartment and the cleaning and disinfection compartment. In addition, the other material types, specifications, dimensions, positions, quantities, etc., given in the embodiments can be reasonably adjusted according to different application scenarios. This includes the combination or omission of the ultrasonic cleaning and disinfection tank, layered racks, and rotating mesh tub within the cleaning and disinfection compartment; these are all non-inventive adjustments and variations, and are entirely within the scope of this utility model overview and the corresponding patent protection.

Claims

1. A preschool education toy cleaning and disinfection machine, comprising a functional component compartment (1) and a cleaning and disinfection compartment (2), characterized in that: The functional component compartment (1) is equipped with power control components, including a touch screen (3), a printer (4), a door lock (5), an electrical control box (10), a detergent concentrate tank (11), a disinfectant concentrate tank (12), a solenoid valve, a flow meter, a circulating filter (13), a circulating spray pump (14), and a drain pump (15); the cleaning and disinfection compartment (2) is equipped with cleaning and disinfection components, including a liquid storage tank (7), an electric hot air blower (8), a one-way exhaust vent (9), a rotating spray arm (16), a rotating mesh tank (17), an ultrasonic cleaning and disinfection tank (18), and a shelf (19), and is divided into multiple compartments by the longitudinal and transverse beams of the cabinet exterior, each compartment being equipped with a viewing window cabinet door (6); the components of the functional component compartment (1) and the cleaning and disinfection compartment (2) are connected by pipes to form the aforementioned young The cleaning system and disinfection system of the educational toy cleaning and disinfection machine; the cleaning system consists of a detergent concentrate dilution branch, a detergent circulation cleaning branch, a detergent waste liquid discharge branch, and a clean water rinsing branch for detergent residue; the disinfection system consists of a disinfectant concentrate dilution branch, a disinfectant circulation disinfection branch, a disinfectant waste liquid discharge branch, and a clean water rinsing branch for disinfectant residue; each branch of the cleaning system and each branch of the disinfection system share some solenoid valves, filters, liquid pumps, and pipelines. An intelligent control module controls the opening and closing of each normally closed solenoid valve according to a preset program, automatically completing the detergent and disinfectant concentrate dilution, spray soaking circulation cleaning and disinfection, waste liquid discharge, clean water rinsing for detergent and disinfectant residue, and hot air dehumidification and drying operations; the components and connections of each branch of the cleaning system and the disinfection system are as follows: The detergent concentrate dilution branch includes a detergent concentrate injection branch and a clean water injection branch. The components and connection method of the detergent concentrate injection branch are as follows: the outlet of the detergent concentrate tank (11) is connected to the inlet of the detergent concentrate control valve (20) through a pipe; the outlet of the detergent concentrate control valve (20) is connected to the inlet of the detergent flow meter (21) through a pipe; and the outlet of the detergent flow meter (21) is connected in parallel to the inlet of the liquid storage tank input pipe (22) through a pipe. The outlet end of the liquid storage tank input pipe (22) is connected to the liquid storage tank (7); the components and connection method of the clean water injection branch are as follows: the outlet end of the external clean water pipe (23) is connected to the inlet end of the clean water control valve (24), the outlet end of the clean water control valve (24) is connected to the inlet end of the clean water flow meter (25) through a pipe, the outlet end of the clean water flow meter (25) is connected in parallel to the inlet end of the liquid storage tank input pipe (22), and the outlet end of the liquid storage tank input pipe (22) is connected to the liquid storage tank (7); The detergent circulation cleaning branch is as follows: the components and connection method of the branch are as follows: the inlet end of the suction pipe (26) is installed at the bottom of the storage tank (7), the outlet end of the suction pipe (26) is connected to the inlet end of the circulation filter (13), the outlet end of the circulation filter (13) is connected to the inlet end of the circulation spray pump (14) through a pipe, the outlet end of the circulation spray pump (14) is connected to the inlet end of the infusion control valve (27) through a pipe, the outlet end of the infusion control valve (27) is connected to the inlet end of the infusion pipe (28), and the outlet end of the infusion pipe (28) is connected in parallel to the inlet end of the rotary spray arm control valve (29) and the ultrasonic cleaning and disinfection tank control valve (30); the outlet end of the rotary spray arm control valve (29) is connected to the inlet end of the ultrasonic cleaning and disinfection tank control valve (30). The inlet end of the rotating spray arm (16) is connected to the outlet end of the rotating spray arm (16), which has multiple spray holes arranged in a row, and is connected to the chamber of the cleaning and disinfection chamber (2), spraying detergent onto the rack (19) or the rotating mesh bucket (17); the outlet end of the ultrasonic cleaning and disinfection tank control valve (30) is connected to the inlet end of the ultrasonic cleaning and disinfection tank (18) through a pipe, and the outlet end of the ultrasonic cleaning and disinfection tank (18) is connected to the inlet end of the ultrasonic cleaning and disinfection tank discharge control valve (31), and the outlet end of the ultrasonic cleaning and disinfection tank discharge control valve (31) is connected to the chamber of the cleaning and disinfection chamber (2); the bottom of the chamber of the cleaning and disinfection chamber (2) is provided with a liquid storage tank (7) to collect detergent for the suction pipe (26) to draw it up. The detergent waste liquid discharge branch is as follows: the storage tank (7) is connected to the inlet end of the drain pump (15) through the drain pipe (33), the outlet end of the drain pump (15) is connected to the inlet end of the drain control valve (34) through the pipe, and the outlet end of the drain control valve (34) is connected to the external drainage network through the pipe. The clean water rinsing branch for detergent residue is as follows: the outlet end of the external clean water pipe (23) is connected to the inlet end of the clean water branch control valve (32), and the outlet end of the clean water branch control valve (32) is connected in parallel to the inlet ends of the rotary spray arm control valve (29) and the ultrasonic cleaning and disinfection tank control valve (30) through the infusion pipe (28); the outlet end of the rotary spray arm control valve (29) is connected to the inlet end of the rotary spray arm (16), and the outlet end of the rotary spray arm (16) has multiple spray holes arranged in a row, which are connected to the chamber of the cleaning and disinfection chamber (2) and spray clean water onto the rack (19) or the rotating mesh bucket (17); the ultrasonic cleaning and disinfection tank control valve (30) The outlet end is connected to the inlet end of the ultrasonic cleaning and disinfection tank (18) through a pipe. The outlet end of the ultrasonic cleaning and disinfection tank (18) is connected to the inlet end of the ultrasonic cleaning and disinfection tank discharge control valve (31). The outlet end of the ultrasonic cleaning and disinfection tank discharge control valve (31) is connected to the chamber of the cleaning and disinfection chamber (2). The bottom of the chamber of the cleaning and disinfection chamber (2) is provided with a liquid storage tank (7). The liquid storage tank (7) is connected to the inlet end of the drain pump (15) through a drain pipe (33). The outlet end of the drain pump (15) is connected to the inlet end of the drain control valve (34) through a pipe. The outlet end of the drain control valve (34) is connected to the external drainage network through a pipe. The disinfectant concentrate dilution branch includes a disinfectant concentrate injection branch and a clean water injection branch. The components and connection method of the disinfectant concentrate injection branch are as follows: the outlet of the disinfectant concentrate tank (12) is connected to the inlet of the disinfectant concentrate control valve (35) via a pipe; the outlet of the disinfectant concentrate control valve (35) is connected to the inlet of the disinfectant flow meter (36) via a pipe; and the outlet of the disinfectant flow meter (36) is connected in parallel to the inlet of the storage tank input pipe (22). The outlet end of the liquid storage tank input pipe (22) is connected to the liquid storage tank (7); the components and connection method of the clean water injection branch are as follows: the outlet end of the external clean water pipe (23) is connected to the inlet end of the clean water control valve (24), the outlet end of the clean water control valve (24) is connected to the inlet end of the clean water flow meter (25) through a pipe, the outlet end of the clean water flow meter (25) is connected in parallel to the inlet end of the liquid storage tank input pipe (22), and the outlet end of the liquid storage tank input pipe (22) is connected to the liquid storage tank (7); The disinfectant circulation disinfection branch: the components and connection method of this branch are the same as those of the aforementioned detergent circulation cleaning branch; The disinfectant waste liquid discharge branch: the components and connection method of this branch are the same as those of the aforementioned detergent waste liquid discharge branch; The aforementioned water rinsing disinfectant residue branch: The components and connection method of this branch are the same as those of the aforementioned water rinsing detergent residue branch.

2. The preschool education toy cleaning and disinfection machine according to claim 1, characterized in that: The rotating mesh barrel (17) is in the shape of a hollow cylindrical barrel, with its bottom plane parallel to the interior wall panel (37) of the cleaning and disinfection chamber (2); a direct drive motor (38) is installed on the back of the interior wall panel (37) of the corresponding cleaning and disinfection chamber (2), and the bottom center of the rotating mesh barrel (17) is fixedly installed on the shaft of the direct drive motor (38).

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