Thermostatic water mixing valve based on thermal sterilization

Abstract

The invention discloses a thermostatic water mixing valve based on thermal sterilization, and relates to the technical field of water mixing valves, the water mixing valve comprises an anti-convection mechanism, an anti-layering mechanism, a filtering mechanism, a valve body mechanism and a detection mechanism, the anti-convection mechanism is fixedly connected with the valve body mechanism, the anti-layering mechanism is fixedly connected with a valve body, the filtering mechanism is communicated with the valve body mechanism, and the detection mechanism is fixedly connected with the valve body mechanism. The detection mechanism is fixedly connected with the valve body mechanism, the anti-convection mechanism is fixedly connected with the valve body mechanism, cold and hot water convection interference is restrained through a mechanical structure, and it is ensured that the water temperature levels are balanced. The anti-layering mechanism is fixedly connected with the valve body and is structurally provided with a layer uniformizing component used for weakening the density difference of cold water and hot water to cause layering, the uniformity of the outlet water temperature is further guaranteed, the filtering mechanism is used for effectively removing impurity particles in water and preventing blockage and pollution, and the detection mechanism is used for collecting system operation state data. The problems of confused convection, large temperature difference, impurity accumulation, thermal sterilization temperature and the like are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of mixing valve technology, specifically a thermostatic mixing valve based on thermal sterilization. Background Technology

[0002] With the increasing demand for intelligent hot water systems, centralized heating systems, and medical-grade terminal sterilization water, mixing valves, as core components for hot and cold water regulation and temperature control management, are widely used in homes, hotels, hospitals, and industrial settings.

[0003] Existing mixing valves mostly use mechanical mechanisms and are still mainly single-point control, regulating the flow and temperature of the valve body.

[0004] Regarding the existing technology, firstly, it lacks a reverse flow disturbance mechanism, resulting in convection backflow and stratification of hot and cold water, which affects the effectiveness of thermal sterilization; secondly, the lack of a self-cleaning structure leads to sedimentation and blockage, increasing the frequency of manual maintenance and the risk of blockage; thirdly, it lacks thermal sterilization, which can lead to bacterial growth, and there is a risk of scalding during high-temperature sterilization during water supply. Therefore, those skilled in the art have provided a thermostatic mixing valve based on thermal sterilization to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a thermostatic mixing valve based on thermal sterilization to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The mixing valve includes an anti-convective mechanism, an anti-stratification mechanism, a filter mechanism, a valve body mechanism, and a detection mechanism. The anti-convective mechanism and the valve body mechanism are tightly connected, the anti-stratification mechanism and the valve body mechanism are tightly connected, the filter mechanism and the valve body mechanism are connected, and the detection mechanism and the valve body mechanism are tightly connected.

[0008] By adopting the above technical solution, the mixing valve achieves comprehensive control over the stability, uniformity, and cleanliness of the hot and cold water mixing process through the combined and coordinated use of an anti-convection mechanism, an anti-stratification mechanism, a filtration mechanism, a valve body mechanism, and a detection mechanism. Specifically, the anti-convection mechanism is tightly connected to the valve body mechanism, using a mechanical structure to suppress convection interference between hot and cold water, ensuring a balanced water temperature. The anti-stratification mechanism is also tightly connected to the valve body mechanism, and its structure includes a layering component to reduce stratification caused by density differences between hot and cold water, further ensuring the uniformity of the outlet water temperature. The filtration mechanism is connected to the valve body mechanism and contains a filter screen to effectively remove impurities and particles from the water, preventing clogging and contamination. The valve body mechanism, as the core load-bearing component of the entire mixing structure, internally connects the hot and cold water inlets, the mixing chamber, and the outlet, forming a complete flow channel. The detection mechanism is tightly connected to the valve body mechanism and integrates temperature, flow, and other sensing elements to collect system operating status data in real time, providing precise control basis for the actuator. This not only improves the mixing performance but also ensures a compact system structure and precise control, effectively solving problems such as chaotic convection, large temperature differences, and impurity accumulation.

[0009] Furthermore, the valve body mechanism includes a mixing actuator, a mixing valve body, a hot water connection pipe, a cold water connection pipe, a mixing outlet pipe, a circulation pipe, and a three-way ball. The mixing actuator and the detection mechanism are electrically connected. The mixing actuator and the mixing valve body are fastened together. The mixing actuator and the anti-convection mechanism are driven together. The anti-convection mechanism and the three-way ball are driven together. The three-way ball is spherical and is rotatably connected to the mixing valve body. The hot water connection pipe, the cold water connection pipe, the mixing outlet pipe, and the circulation pipe are all connected to the mixing valve body.

[0010] By adopting the above technical solution, the mixing actuator is firmly connected to the mixing valve body, providing a stable driving foundation. It is also electrically connected to the detection mechanism, allowing it to receive real-time temperature and flow rate signals from sensors, thereby adjusting the valve position. The mixing actuator drives the anti-convection mechanism through a transmission structure, achieving precise driving adjustment of the three-way ball. The three-way ball has a spherical structure and is rotatably connected to the mixing valve body. It has internal through-hole channels that can switch the direction of hot and cold water flow and the mixing ratio according to the rotation angle, balancing flow control and temperature balance. The hot water connection and cold water connection respectively connect water of different temperatures. The source is introduced into the mixing valve body, which integrates a flow guiding channel to guide the hot and cold water into the three-way ball for initial mixing. The mixing outlet pipe is connected to the lower end of the mixing valve body to discharge the regulated mixed water. The circulation pipe is connected to the mixing valve body and, in conjunction with the three-way ball structure, allows part of the water flow to flow back into the water supply pipeline, forming a secondary mixing loop to reduce temperature fluctuations. Through the high-temperature overall structure, the position of the three-way ball is dynamically controlled to precisely adjust the water flow path, mixing ratio, and outlet water temperature, thereby improving mixing efficiency, stabilizing outlet water temperature, and achieving energy-saving reflux.

[0011] Furthermore, the anti-convection mechanism includes an anti-convection component and a switching component. The mixing actuator and the anti-convection component are connected by a drive, the switching component and the anti-convection component are engaged, the switching component and the mixing valve body are fastened together, and the switching component and the detection mechanism are electrically connected.

[0012] By adopting the above technical solution, the anti-convection mechanism effectively blocks natural convection between hot and cold water through the coordinated operation of the anti-convection component and the switching component, thereby improving the accuracy of mixing temperature control. In specific implementation, the mixing actuator is connected to the anti-convection component via a transmission connection. Upon receiving temperature or flow rate signals from the detection mechanism, it drives the adjustment components within the anti-convection component to switch their attitude or position, achieving precise control of the water flow path. The anti-convection component and the switching component are connected by a snap-fit ​​connection, ensuring structural stability and facilitating later disassembly and maintenance, thus improving overall assembly and repair convenience. The switching component is securely installed on the mixing valve body via a fastening structure, ensuring that it will not shift or loosen during system operation, thereby guaranteeing the stability of anti-convection control. Simultaneously, an electrical connection is established between the switching component and the detection mechanism, allowing its internal electromagnetic or drive unit to dynamically adjust according to real-time temperature, flow rate, and other variables, effectively controlling the opening and closing state of the convection path. Through the above structural design, convection shielding control can be achieved before the hot and cold water flows enter the mixing chamber, significantly reducing temperature disturbance and heat conduction diffusion, thereby improving mixing accuracy, shortening response time and enhancing the temperature control stability of the mixing system.

[0013] Furthermore, the anti-convection assembly includes a ratchet gear, a snap-fit ​​block, a snap-fit ​​elastic element, a fixed column, a rotating block, a toothed column, a transmission bevel gear, and a rotating bevel gear. The mixing actuator is fastened to the ratchet gear, the snap-fit ​​block is snapped into the ratchet gear, the snap-fit ​​block is hinged to the tee ball, the fixed column is fastened to the tee ball, the fixed column is fastened to the snap-fit ​​elastic element, and the snap-fit ​​elastic element is fastened to the snap-fit ​​block. The toothed column, transmission bevel gear, and rotating bevel gear are all rotatably connected to the switching assembly. The mixing actuator is driven by the rotating bevel gear, the rotating bevel gear is driven by the transmission bevel gear, the transmission bevel gear is driven by the switching assembly, the switching assembly is driven by the toothed column, and the toothed column is driven by the rotating block. The rotating block is a frustum spiral shape. There are two transmission bevel gears and two rotating blocks. Each transmission bevel gear and rotating block is located on both sides of the switching assembly. One rotating block faces the circulation pipe, and the other rotating block faces the mixing water outlet pipe. The spiral directions of the two rotating blocks are opposite. The switching assembly is located inside the tee ball.

[0014] By adopting the above technical solution, mechanical linkage control of the flow direction switching and convection path regulation of the three-way ball is achieved. Specifically, the hybrid actuator is tightly connected to the ratchet gear, and its rotational motion drives the ratchet gear to rotate, which in turn drives the locking block to shift. The locking block is simultaneously hinged to the three-way ball, enabling it to switch angles under gear drive, thus guiding fluid between different flow paths. One side of the three-way ball is tightly connected to a fixed post, and the other end of the fixed post is connected to a locking elastic element, which in turn is connected to the locking block, forming a flexible reset structure. This ensures automatic reset or limit after the switching action, improving system reliability. The toothed column, transmission bevel gear, and rotating bevel gear are all rotatably connected to the switching component, forming a complex bevel gear transmission system. The hybrid actuator drives the rotating bevel gear to rotate, and the rotating bevel gear further drives the transmission bevel gear to rotate. The system is designed to create a multi-level force transmission relationship. The transmission bevel gear is connected to the switching component, which in turn drives the toothed column to rotate. The toothed column then drives the rotating block to rotate, achieving dynamic switching of the anti-convection state. The rotating block is a frustum spiral shape, and its spiral structure design causes the water flow to generate forced rotational disturbance to suppress stratification and convection effects. The two rotating blocks are located on both sides of the switching component, one facing the circulation pipe and the other facing the mixing water outlet pipe. The spiral directions of the two rotating blocks are opposite, forming a reverse disturbance zone, which effectively breaks the natural temperature difference distribution between hot and cold water. The entire anti-convection component is centrally arranged inside the three-way ball. It has a compact structure and reliable linkage. It can accurately control the flow direction switching, disturbance initiation and loop isolation through mechanical action, achieving the significant technical effect of preventing reverse convection between hot and cold water and maintaining temperature control balance.

[0015] Furthermore, the switching assembly includes a switching housing, a switching retaining ring, a switching slider, a switching elastic element, and a switching electromagnetic block. The toothed column, the transmission bevel gear, and the rotating bevel gear are all rotatably connected to the switching housing. The switching housing and the mixing valve body are fastened together. The switching retaining ring and the toothed column are slidably connected. The switching slider and the switching retaining ring are rotatably connected. The switching slider and the switching housing are slidably connected. The switching elastic element and the switching slider are fastened together. The transmission bevel gear and the switching retaining ring are connected by transmission. The switching elastic element and the switching electromagnetic block are fastened together. The magnetic poles of the switching electromagnetic block and the switching slider are attracted to each other and driven by transmission. The switching retaining ring is provided with an abutting protrusion, and the transmission bevel gear is provided with a locking protrusion. The abutting protrusion and the locking protrusion are locked together.

[0016] By adopting the above technical solution, precise adjustment of the transmission path and convection disturbance structure is achieved. The toothed column, transmission bevel gear, and rotating bevel gear are all rotatably connected to the switching housing, forming a rotary transmission structure with the switching housing as the load-bearing structure, ensuring stable operation of each gear within a limited space. The switching housing is fastened to the mixing valve body, providing a fixed support foundation for the overall switching assembly. The switching retaining ring is slidably connected to the toothed column, allowing axial movement during the rotation of the toothed column, used to transmit rotational power and assist in switching the position of the toothed shaft. The switching slider is rotatably connected to the switching retaining ring, forming a transmission transition component. The switching slider is also slidably connected to the switching housing, allowing it to move back and forth within the housing to coordinate with the internal switching structure's response. The switching elastic element... One end is firmly connected to the switching slider, and the other end is firmly connected to the switching electromagnetic block, forming a dual driving mechanism of magnetic attraction and spring-loaded return. The switching electromagnetic block drives the switching slider to move through the attraction of magnetic poles, thereby indirectly driving the retaining ring to respond to external signals and change its position. The transmission bevel gear is connected to the switching retaining ring to ensure that the action of the retaining ring can synchronously affect the gear posture, thereby adjusting the turbulence direction of the rotating block or the flow path of the three-way ball. The switching retaining ring is provided with abutting protrusions, and the transmission bevel gear is provided with locking protrusions. The two lock together to achieve mechanical transmission when the set angle or position is reached, preventing over-positioning, improving system stability and safety, completing the active adjustment of the anti-convection mechanism, and effectively improving the response speed, anti-interference ability and mechanical reliability of the mixing system.

[0017] Furthermore, the anti-stratification mechanism includes an iris assembly and a stratification body. The iris assembly is fastened to the circulation pipe and electrically connected to the detection mechanism. Both the hot water pipe and the cold water pipe are connected to the stratification body. There are two stratification bodies, each with a stratification cavity. The stratification cavities of the two stratification bodies are arranged symmetrically and alternately.

[0018] By adopting the above technical solution, the iris module is firmly connected to the circulation pipe and installed in the return path. Through precise control of the return water flow, the dynamic adjustment of the return water disturbance rhythm is achieved. The iris module is electrically connected to the detection mechanism, which can automatically adjust the iris opening according to the real-time monitoring of water temperature and water flow status changes, thereby responding quickly when the outlet water temperature fluctuates and controlling the return flow rate to improve the mixing uniformity. The hot water inlet and cold water inlet respectively introduce hot and cold water sources and are directly connected to the downstream homogenizing body. The two homogenizing bodies are set in channels in different directions, each with an internal homogenizing cavity structure. The homogenizing cavity is used to diffuse the inflow and form a disturbance distribution on the incoming water. Its structure is designed to be symmetrically staggered to ensure that the hot and cold water have formed longitudinal and transverse turbulence before entering the mixing cavity, effectively breaking the accumulation of hot or cold layers caused by density differences. Through the above structural coordination, the anti-stratification mechanism not only achieves mechanical turbulence enhancement, but also relies on the detection signal to drive iris response adjustment, and combines with the uniform layer cavity structure to form a multi-channel turbulence network, which greatly improves the uniformity and stability of the primary mixing of hot and cold water, thereby improving the thermal stability and comfort of the terminal water outlet.

[0019] Furthermore, the filtration mechanism includes a filter connecting pipe and a slag discharge assembly. The filter connecting pipe is connected to the mixing valve body. The filter connecting pipe has a connecting cavity and a water outlet cavity, which is higher than the water outlet cavity. The filter connecting pipe also has a slag discharge cavity. The connecting cavity and the water outlet cavity are uniformly connected to the slag discharge cavity. The slag discharge assembly includes a slag discharge motor, a filter screen, an opening and closing block, and a slag discharge slider. The filter screen is a frustum-shaped structure with both the top and bottom connected. The filter screen and the filter connecting pipe are rotatably connected. The filter screen has filter holes, which are arranged at an angle. The filter holes are connected to the connecting cavity. The slag discharge motor and the filter connecting pipe are fastened together. The slag discharge motor and the opening and closing block are driven together. The slag discharge slider and the filter connecting pipe are slidably connected. The opening and closing block and the slag discharge slider are driven together. The opening and closing block has a vortex-shaped protrusion and is annular. The slag discharge slider has a rotating groove. The filter screen has a rotating protrusion, which is rotatably connected to the rotating groove.

[0020] By adopting the above technical solution, the filter connecting pipe is connected to the mixing valve body to form a pre-filter channel. It has a connecting cavity for receiving the original mixed water flow, an outlet cavity for leading out the filtered clean water, and a sludge discharge cavity located at the bottom of the connecting pipe. The three cavities are interconnected, with the outlet cavity higher than the sludge discharge cavity, facilitating natural sedimentation and stratified flow under the action of the filter screen. In the sludge discharge assembly, the filter screen is a frustum-shaped structure extending vertically and rotatably connected to the filter connecting pipe, and is arranged at an angle. This allows the water entering the connecting cavity to undergo centrifugal self-cleaning as it passes through the filter holes. The filter holes and the connecting cavity... The filter screen is designed to block large particles of impurities from entering the main flow path. Rotating protrusions on the filter screen are embedded in rotating grooves on the slag discharge slider, forming a rotating connection that, in conjunction with the screen's rotation, performs a scraping action. The slag discharge slider is slidably connected to the filter connecting pipe, allowing adjustment of the opening and closing size of the slag discharge opening below the filter screen. The opening / closing block is annular with vortex-shaped protrusions on its outer circumference. Driven by the slag discharge motor, it is connected to the slag discharge slider to switch the opening and closing of the slag discharge channel, controlling the release time and frequency of filter residue. The slag discharge motor is securely connected to the filter connecting pipe, serving as the drive unit to periodically rotate the opening / closing block. Through this structural design, the filtration mechanism can continuously intercept, directionally settle, and automatically discharge impurities without interrupting water supply. This significantly improves the cleanliness, self-maintenance capability, and stability of the mixing valve during long-term operation, preventing valve core jamming or decreased mixing performance caused by impurity accumulation.

[0021] Furthermore, the testing mechanism includes a controller, a water supply temperature sensor, a return water temperature sensor, a flow rate sensor, and a water supply pipe. The slag discharge motor, iris module, and mixing actuator are all electrically connected to the controller. The water supply temperature sensor and the water supply pipe are securely connected. The return water temperature sensor and the mixing outlet pipe are securely connected. The flow rate sensor and the return water temperature sensor are securely connected. The water supply pipe and the mixing outlet pipe are connected. The water supply pipe and the circulation pipe are connected. The water supply temperature sensor, the return water temperature sensor, and the flow rate sensor are all electrically connected to the controller.

[0022] By adopting the above technical solution, the controller, as the core information processing unit, is electrically connected to the slag discharge motor, iris module, and mixing actuator. It can issue adjustment commands to the corresponding actuators based on data collected by various sensors, realizing closed-loop control. The water supply temperature sensor is fixedly installed on the water supply pipe to monitor the temperature data of the hot or cold water entering the system in real time, providing a pilot parameter for the mixing ratio adjustment. The return water temperature sensor is fixedly installed on the mixing outlet pipe to monitor the temperature change of the mixed outlet water, and works with the controller to accurately adjust the outlet water temperature. The flow rate sensor is fixedly installed on the return water temperature sensor to simultaneously detect the flow rate information of the outlet water, determine whether the system flow is stable, and serve as an auxiliary judgment parameter in the control logic. One end of the water supply pipe is connected to the mixing outlet pipe, and the other end is connected to the circulation pipe, forming a hot water circulation loop channel, providing structural support for temperature difference balance. All three types of sensors are electrically connected to the controller, enabling the system to form a dynamic linkage control model of temperature-flow rate-execution response. Overall, this testing device achieves continuous monitoring of physical quantities throughout the entire process from water intake to mixing to water return. This enables the controller to sense the overall status, optimize the mixing ratio in real time, adjust the turbulence intensity, and initiate actions such as slag discharge or recirculation. Thermal sterilization is achieved by increasing the hot water outlet temperature. To ensure the killing of pathogens, the water temperature typically cannot be lower than 50°C, and this is achieved by circulating high-temperature water within the system for a certain period. To best achieve thermal sterilization, the temperature of the hot water recirculation return water is measured. Data from the return water temperature sensor allows the controller to verify whether the entire system has reached the sterilization temperature. Because the return water temperature sensor can reach the furthest point of the water supply pipe, it prevents harm to users during water supply periods.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] The mixing actuator is securely connected to the ratchet gear, which drives the locking block and the three-way ball to form an articulated linkage. The swirling turbulence is then controlled via a toothed column-rotating block path. The rotating block adopts a frustum-shaped spiral structure, with two rotating blocks facing the circulation pipe and the mixing water outlet pipe respectively, and their spiral directions are opposite. This reverse turbulence simultaneously disperses temperature stratification at the mixing water inlet and outlet. Combined with the switching component located within the three-way ball, a toothed switching linkage is formed using a bevel gear set and a slider transmission structure, effectively breaking the convection path between hot and cold water, significantly improving the temperature control response accuracy of the mixing water and stabilizing the outlet water temperature. The filtration mechanism consists of a frustum-shaped, inclined filter screen and a filter connecting pipe with a connecting cavity, an outlet cavity, and a slag discharge cavity. The filter screen features rotating protrusions that rotatably connect with the rotating grooves on the sludge discharge slider. A sludge discharge motor, via a vortex-shaped opening and closing block, drives the slider to open the lower filter screen's sealed portion, achieving periodic self-cleaning. Reverse discharge can also clear sediment from the water supply pipe. The three-chamber structure's varying heights allow for natural sludge flow control, ensuring synchronous filtration and impurity discharge during continuous water supply. This prevents filter clogging, which could cause the three-way ball to jam or sudden flow rate changes, significantly improving valve reliability and long-term operational stability. A return water temperature sensor, fixed at the far end of the mixing outlet pipe and electrically connected to the controller, provides accurate feedback on the temperature at the end of the hot water circuit. The controller, in conjunction with the iris assembly and mixing actuator, ensures the hot water circulates at a high temperature of ≥50℃ for a certain period. This arrangement allows the control system to not only determine if the sterilization temperature has been reached but also confirm whether the water at the far end is heated evenly, preventing "false sterilization" caused by heating only a localized section. This ensures effective thermal sterilization of the entire pipeline while maintaining user safety. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the anti-convection mechanism of the present invention;

[0027] Figure 3 This is a schematic diagram of the anti-convection component structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the rotating block structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the switching component structure of the present invention;

[0030] Figure 6 This is a schematic diagram of the anti-delamination mechanism of the present invention;

[0031] Figure 7 This is a schematic diagram of the filter mechanism structure of the present invention;

[0032] Figure 8This is a schematic diagram of the vortex-shaped protrusion structure of the present invention.

[0033] In the diagram: 1. Anti-convection mechanism; 11. Anti-convection component; 111. Ratchet gear; 112. Snap-fit ​​block; 113. Snap-fit ​​elastic element; 114. Fixed column; 115. Rotating block; 116. Gear column; 117. Transmission bevel gear; 1171. Snap-fit ​​protrusion; 118. Rotating bevel gear; 12. Switching component; 121. Switching housing; 122. Switching retaining ring; 1221. Abutment protrusion; 123. Switching slider; 124. Switching elastic element; 125. Switching electromagnetic block; 2. Anti-segmentation mechanism; 21. Iris component; 22. Homogenizing body; 221. Homogenizing cavity; 3. Filtering mechanism; 31. Filter connecting pipe 311. Connecting cavity; 312. Water outlet cavity; 313. Slag discharge cavity; 32. Slag discharge assembly; 321. Slag discharge motor; 322. Filter screen; 3221. Rotating protrusion; 323. Opening and closing block; 3231. Vortex protrusion; 324. Slag discharge slider; 3241. Rotating groove; 4. Valve body mechanism; 41. Mixing actuator; 42. Mixing valve body; 43. Hot water connection pipe; 44. Cold water connection pipe; 45. Mixing water outlet pipe; 46. Circulation pipe; 47. Three-way ball; 5. Detection mechanism; 51. Controller; 52. Water supply temperature sensor; 53. Return water temperature sensor; 54. Flow rate sensor; 55. Water supply pipe. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1 - Figure 8 As shown, this invention provides a thermostatic mixing valve technical solution based on thermal sterilization:

[0036] The mixing valve includes an anti-convective mechanism 1, an anti-stratification mechanism 2, a filter mechanism 3, a valve body mechanism 4, and a detection mechanism 5. The anti-convective mechanism 1 and the valve body mechanism 4 are fastened together, the anti-stratification mechanism 2 and the valve body mechanism 4 are fastened together, the filter mechanism 3 and the valve body mechanism 4 are connected, and the detection mechanism 5 and the valve body mechanism 4 are fastened together.

[0037] By adopting the above technical solution, the mixing valve achieves comprehensive control over the stability, uniformity, and cleanliness of the hot and cold water mixing process through the combined and coordinated operation of the anti-convection mechanism 1, the anti-stratification mechanism 2, the filtration mechanism 3, the valve body mechanism 4, and the detection mechanism 5. In practical implementation, the anti-convection mechanism 1 is tightly connected to the valve body mechanism 4, suppressing the interference of hot and cold water convection through mechanical structure to ensure a balanced water temperature. The anti-stratification mechanism 2 is tightly connected to the valve body, and its structure is equipped with a layering component to weaken the stratification caused by the density difference between hot and cold water, further ensuring the uniformity of the outlet water temperature. The filtration mechanism 3 is connected to the valve body mechanism 4, and has a filter screen 322 inside to effectively remove impurities and particles in the water, preventing clogging and pollution. The valve body mechanism 4, as the core load-bearing part of the entire mixing structure, connects the hot and cold water inlets, the mixing chamber, and the outlet to form a complete flow channel. The detection mechanism 5 is tightly connected to the valve body mechanism 4, integrating temperature, flow, and other sensing elements to collect system operating status data in real time, providing precise control basis for the actuator. This not only improves the mixing performance but also ensures a compact system structure and precise control, effectively solving problems such as chaotic convection, large temperature difference, and impurity accumulation.

[0038] Furthermore, the valve body mechanism 4 includes a mixing actuator 41, a mixing valve body 42, a hot water connection pipe 43, a cold water connection pipe 44, a mixing outlet pipe 45, a circulation pipe 46, and a three-way ball 47. The mixing actuator 41 is electrically connected to the detection mechanism 5, the mixing actuator 41 is fastened to the mixing valve body 42, the mixing actuator 41 is driven to the anti-convective mechanism 1, the anti-convective mechanism 1 is driven to the three-way ball 47, the three-way ball 47 is spherical, and the three-way ball 47 is rotatably connected to the mixing valve body 42. The hot water connection pipe 43, the cold water connection pipe 44, the mixing outlet pipe 45, and the circulation pipe 46 are all connected to the mixing valve body 42.

[0039] By adopting the above technical solution, the mixing actuator 41 is firmly connected to the mixing valve body 42, providing a stable driving foundation. It is also electrically connected to the detection mechanism 5, allowing it to receive real-time temperature and flow rate signals from sensors, thereby adjusting the valve position. The mixing actuator 41 drives the anti-convection mechanism 1 through a transmission structure, achieving precise driving adjustment of the three-way ball 47. The three-way ball 47 has a spherical structure and is rotatably connected to the mixing valve body 42. It has internal through-hole channels, enabling it to switch the direction of hot and cold water flow and the mixing ratio according to the rotation angle, balancing flow control and temperature balance. The hot water connection pipe 43 and the cold water connection pipe 44 respectively connect water sources of different temperatures. A mixing valve body 42 is introduced, with an integrated flow guiding channel inside to guide hot and cold water into the three-way ball 47 for initial mixing. The mixing outlet pipe 45 is connected to the lower end of the mixing valve body 42 to discharge the regulated mixed water. The circulation pipe 46 is connected to the mixing valve body 42 and, in conjunction with the three-way ball 47, enables part of the water flow to return to the water supply pipe 55, forming a secondary mixing loop to reduce temperature fluctuations. Through the high-temperature overall structure, the position of the three-way ball 47 is dynamically controlled to precisely adjust the water flow path, mixing ratio, and outlet water temperature, thereby improving mixing efficiency, stabilizing outlet water temperature, and achieving energy-saving reflux.

[0040] Furthermore, the anti-convection mechanism 1 includes an anti-convection component 11 and a switching component 12. The mixing actuator 41 is connected to the anti-convection component 11 by transmission. The switching component 12 is snapped into the anti-convection component 11. The switching component 12 is fastened to the mixing valve body 42. The switching component 12 is electrically connected to the detection mechanism 5.

[0041] By adopting the above technical solution, the anti-convection mechanism 1, through the coordinated cooperation of the anti-convection component 11 and the switching component 12, effectively blocks the natural convection between hot and cold water, improving the accuracy of water mixing temperature control. In specific implementation, the mixing actuator 41 is connected to the anti-convection component 11. After receiving the temperature or flow rate signal fed back by the detection mechanism 5, it drives the adjustment component inside the anti-convection component 11 to switch its attitude or position, thereby achieving precise control of the water flow path. The anti-convection component 11 and the switching component 12 are connected by a snap-fit ​​method, which not only ensures the stable combination of the structure, but also facilitates disassembly and maintenance in the later stage, improving the overall assembly and maintenance convenience. The switching component 12 is firmly installed on the mixing valve body 42 through a fastening structure to ensure that it will not shift or loosen during system operation, thereby ensuring the stability of anti-convection control. At the same time, an electrical connection is established between the switching component 12 and the detection mechanism 5, so that its internal electromagnetic or drive unit can be dynamically adjusted according to real-time temperature, flow rate and other variables, effectively controlling the opening and closing state of the convection path. Through the above structural design, convection shielding control can be achieved before the hot and cold water flows enter the mixing chamber, significantly reducing temperature disturbance and heat conduction diffusion, thereby improving mixing accuracy, shortening response time and enhancing the temperature control stability of the mixing system.

[0042] Furthermore, the anti-convection assembly 11 includes a ratchet gear 111, a snap-fit ​​block 112, a snap-fit ​​elastic element 113, a fixed post 114, a rotating block 115, a toothed post 116, a transmission bevel gear 117, and a rotating bevel gear 118. The hybrid actuator 41 is fastened to the ratchet gear 111, the snap-fit ​​block 112 is snapped to the ratchet gear 111, the snap-fit ​​block 112 is hinged to the three-way ball 47, the fixed post 114 is fastened to the three-way ball 47, the fixed post 114 is fastened to the snap-fit ​​elastic element 113, the snap-fit ​​elastic element 113 is fastened to the snap-fit ​​block 112, and the toothed post 116, the transmission bevel gear 117, and the rotating bevel gear 118 are all rotatably connected to the switching assembly 12. Device 41 is connected to rotating bevel gear 118, rotating bevel gear 118 is connected to transmission bevel gear 117, transmission bevel gear 117 is connected to switching assembly 12, switching assembly 12 is connected to toothed column 116, toothed column 116 is connected to rotating block 115, rotating block 115 is frustum spiral, there are two transmission bevel gears 117 and two rotating blocks 115, each transmission bevel gear 117 and rotating block 115 is located on both sides of switching assembly 12, one rotating block 115 faces the circulation pipe 46, the other rotating block 115 faces the mixing water outlet pipe 45, the spiral directions of the two rotating blocks 115 are opposite, and switching assembly 12 is located inside three-way ball 47.

[0043] By adopting the above technical solution, mechanical linkage control of the flow direction switching and convection path regulation of the three-way ball 47 is realized. Specifically, the hybrid actuator 41 is tightly connected to the ratchet gear 111, and its rotation drives the ratchet gear 111 to rotate, thereby driving the locking block 112, which is engaged with it, to shift. The locking block 112 is simultaneously hinged to the three-way ball 47, enabling it to switch angles under gear drive, thus achieving fluid guidance between different flow paths. One side of the three-way ball 47 is tightly connected to a fixed post 114, and the other end of the fixed post 114 is connected to a locking elastic element 113, which in turn is connected to the locking block 112, forming a flexible reset structure to ensure automatic reset or limit after switching, improving system reliability. The toothed column 116, transmission bevel gear 117, and rotating bevel gear 118 are all rotatably connected to the switching assembly 12, forming a complex bevel gear transmission system. The hybrid actuator 41 drives the rotating bevel gear 118 to rotate, and the rotating bevel gear 118 further... The step drives the transmission bevel gear 117 to rotate, forming a multi-stage force transmission relationship. The transmission bevel gear 117 is connected to the switching component 12, which in turn drives the toothed column 116 to rotate. The toothed column 116 then drives the rotating block 115 to rotate, realizing the dynamic switching of the anti-convection state. The rotating block 115 is a frustum spiral shape. Its spiral structure design causes the water flow to generate forced rotational disturbance to suppress stratification and convection effects. The two rotating blocks 115 are located on both sides of the switching component 12, one side facing the circulation pipe 46 and the other side facing the mixing water outlet pipe 45. The spiral directions of the two rotating blocks 115 are opposite, forming a reverse disturbance zone, which effectively breaks the natural temperature difference distribution between hot and cold water. The entire anti-convection component 11 is centrally arranged inside the three-way ball 47. It has a compact structure and reliable linkage. It can accurately control the flow direction switching, disturbance initiation and loop isolation through mechanical action, achieving the significant technical effect of preventing reverse convection of hot and cold water and maintaining temperature control balance.

[0044] Furthermore, the switching assembly 12 includes a switching housing 121, a switching retaining ring 122, a switching slider 123, a switching elastic element 124, and a switching electromagnetic block 125. The toothed column 116, the transmission bevel gear 117, and the rotating bevel gear 118 are all rotatably connected to the switching housing 121. The switching housing 121 is fastened to the mixing valve body 42. The switching retaining ring 122 is slidably connected to the toothed column 116. The switching slider 123 is rotatably connected to the switching retaining ring 122. The switching slider 123 and... The switching housing 121 is slidably connected, the switching elastic element 124 and the switching slider 123 are fastened together, the transmission bevel gear 117 and the switching retaining ring 122 are driven together, the switching elastic element 124 and the switching electromagnetic block 125 are fastened together, the switching electromagnetic block 125 and the switching slider 123 are driven by magnetic pole attraction, the switching retaining ring 122 is provided with an abutting protrusion 1221, the transmission bevel gear 117 is provided with a locking protrusion 1171, and the abutting protrusion 1221 and the locking protrusion 1171 are locked together.

[0045] By adopting the above technical solution, precise adjustment of the transmission path and convection disturbance structure is achieved. The toothed column 116, transmission bevel gear 117, and rotating bevel gear 118 are all rotatably connected to the switching housing 121, forming a rotary transmission structure with the switching housing 121 as the load-bearing structure, ensuring stable operation of each gear within a limited space. The switching housing 121 is fixed to the mixing valve body 42 by fastening, providing a fixed support foundation for the overall switching assembly 12. The switching retaining ring 122 is slidably connected to the toothed column 116, and can move axially during the rotation of the toothed column 116, used to transmit rotational power and assist in switching the position of the toothed column shaft. The switching slider 123 is rotatably connected to the switching retaining ring 122, forming a transmission transition component. At the same time, the switching slider 123 is also slidably connected to the switching housing 121, and can move back and forth within the housing to cooperate with the internal switching structure response action. The switching spring... One end of the component 124 is fastened to the switching slider 123, and the other end is fastened to the switching electromagnetic block 125, forming a dual driving mechanism of magnetic attraction and spring-loaded return. The switching electromagnetic block 125 drives the switching slider 123 to move through the magnetic pole attraction, thereby indirectly driving the retaining ring to respond to external signals and change its position. The transmission bevel gear 117 is connected to the switching retaining ring 122, ensuring that the action of the retaining ring can synchronously affect the gear posture, thereby adjusting the turbulence direction of the rotating block 115 or the flow path of the three-way ball 47. The switching retaining ring 122 is provided with an abutment protrusion 1221, and the transmission bevel gear 117 is provided with a locking protrusion 1171. The two lock together to achieve mechanical transmission when the set angle or position is reached, preventing over-positioning, improving system stability and safety, completing the active adjustment of the anti-convection mechanism, and effectively improving the response speed, anti-interference ability and mechanical reliability of the mixing system.

[0046] Furthermore, the anti-stratification mechanism 2 includes an iris component 21 and a stratification body 22. The iris component 21 is fastened to the circulation pipe 46 and electrically connected to the detection mechanism 5. The hot water pipe 43 and the cold water pipe 44 are both connected to the stratification body 22. There are two stratification bodies 22, and each stratification body 22 has a stratification cavity 221. The stratification cavities 221 of the two stratification bodies 22 are arranged symmetrically and alternately.

[0047] By adopting the above technical solution, the iris component 21 is firmly connected to the circulation pipe 46 and installed in the return path. Through precise control of the return water flow, the dynamic adjustment of the return water disturbance rhythm is achieved. The iris component 21 is electrically connected to the detection mechanism 5, which can automatically adjust the iris opening according to the real-time monitoring of water temperature and water flow status changes, thereby responding quickly when the outlet water temperature fluctuates and controlling the return flow rate to improve the mixing uniformity. The hot water pipe 43 and the cold water pipe 44 respectively introduce hot and cold water sources and are directly connected to the downstream homogenizing body 22. The two homogenizing bodies 22 are respectively set in channels in different directions, and each has an internal homogenizing cavity 221 structure. The homogenizing cavity 221 is used to diffuse the inflow and form a disturbance distribution on the incoming water. Its structure is designed to be symmetrically staggered to ensure that the hot and cold water have formed longitudinal and transverse turbulence before entering the mixing cavity, effectively breaking the accumulation of hot or cold layers caused by density differences. Through the above structural coordination, the anti-stratification mechanism 2 not only achieves mechanical turbulence enhancement, but also relies on the detection signal to drive iris response adjustment, and combines with the cavity structure of the homogeneous body 22 to form a multi-channel turbulence network, which greatly improves the uniformity and stability of the primary mixing of hot and cold water, thereby improving the thermal stability and comfort of the terminal water outlet.

[0048] Furthermore, the filtration mechanism 3 includes a filter connecting pipe 31 and a slag discharge assembly 32. The filter connecting pipe 31 is connected to the mixing valve body 42. The filter connecting pipe 31 is provided with a connecting cavity 311 and a water outlet cavity 312, which is higher than the water outlet cavity 312. The filter connecting pipe 31 is provided with a slag discharge cavity 313. The connecting cavity 311 and the water outlet cavity 312 are connected to the slag discharge cavity 313. The slag discharge assembly 32 includes a slag discharge motor 321, a filter screen 322, an opening and closing block 323, and a slag discharge slider 324. The filter screen 322 is a frustum-shaped structure with both the top and bottom connected. The filter screen 322 and the filter connecting pipe 31 rotate... The filter screen 322 is provided with filter holes and is arranged at an angle. The filter holes are connected to the connecting cavity 311. The slag discharge motor 321 and the filter connecting pipe 31 are fastened together. The slag discharge motor 321 and the opening and closing block 323 are driven together. The slag discharge slider 324 and the filter connecting pipe 31 are slidably connected. The opening and closing block 323 and the slag discharge slider 324 are driven together. The opening and closing block 323 is provided with a vortex-shaped protrusion 3231. The opening and closing block 323 is circular. The slag discharge slider 324 is provided with a rotating groove 3241. The filter screen 322 is provided with a rotating protrusion 3221. The rotating protrusion 3221 and the rotating groove 3241 are rotatably connected.

[0049] By adopting the above technical solution, the filter connecting pipe 31 is connected to the mixing valve body 42 to form a pre-filter channel. It has a connecting cavity 311 for receiving the original mixed water flow and an outlet cavity 312 for leading out the filtered clean water. Simultaneously, the sludge discharge cavity 313 is located at the lower part of the connecting pipe. The three cavities are interconnected, and the outlet cavity 312 is higher than the sludge discharge cavity 313, facilitating natural sedimentation and stratified flow of water under the action of the filter screen 322. In the sludge discharge assembly 32, the filter screen 322 is a frustum-shaped structure that runs vertically through the filter connecting pipe 31 and is rotatably connected to it, arranged at an angle. This allows the water entering the connecting cavity 311 to achieve centrifugal self-cleaning when passing through the filter holes. The filter holes are connected to the connecting cavity 311 for... The filter screen 322 is designed to prevent large particles of impurities from entering the main flow path. A rotating protrusion 3221 on the filter screen 322 is embedded in a rotating groove 3241 on the slag discharge slider 324, forming a rotating connection. This, combined with the rotation of the filter screen 322, enables a scraping action. The slag discharge slider 324 is slidably connected to the filter connecting pipe 31, allowing adjustment of the size of the slag discharge opening below the filter screen 322. The opening / closing block 323 is annular with a vortex-shaped protrusion 3231 on its outer circumference. Driven by the slag discharge motor 321, it is connected to the slag discharge slider 324, enabling the switching of the slag discharge channel and controlling the release time and frequency of filter residue. The slag discharge motor 321 is securely connected to the filter connecting pipe 31, serving as a drive unit to periodically rotate the opening / closing block 323. Through this structural design, the filter mechanism 3 can continuously intercept, directionally settle, and automatically discharge impurities without interrupting water supply. This significantly improves the cleanliness, self-maintenance capability, and stability of the mixing valve during long-term operation, preventing valve core jamming or decreased mixing performance caused by impurity accumulation.

[0050] Furthermore, the detection mechanism 5 includes a controller 51, a water supply temperature sensor 52, a return water temperature sensor 53, a flow rate sensor 54, and a water supply pipe 55. The slag discharge motor 321, the iris module 21, and the mixing actuator 41 are all electrically connected to the controller 51. The water supply temperature sensor 52 and the water supply pipe 55 are tightly connected. The return water temperature sensor 53 and the mixed water outlet pipe 45 are tightly connected. The flow rate sensor 54 and the return water temperature sensor 53 are tightly connected. The water supply pipe 55 is connected to the mixed water outlet pipe 45. The water supply pipe 55 is connected to the circulation pipe 46. The water supply temperature sensor 52, the return water temperature sensor 53, and the flow rate sensor 54 are all electrically connected to the controller 51.

[0051] By adopting the above technical solution, the controller 51, as the core information processing unit, is electrically connected to the slag discharge motor 321, the iris component 21, and the mixing actuator 41. It can issue adjustment commands to the corresponding actuators based on the data collected by various sensors to achieve closed-loop control. The water supply temperature sensor 52 is fixedly installed on the water supply pipe 55 to monitor the temperature data of the hot or cold water entering the system in real time, providing a pilot parameter for the mixing ratio adjustment. The return water temperature sensor 53 is fixedly installed on the mixing water outlet pipe 45 to monitor the temperature change of the mixed water outlet and, together with the controller 51, performs precise feedback adjustment of the outlet water temperature. The flow rate sensor 54 is fixedly installed on the return water temperature sensor 53 and can synchronously detect the flow rate information of the outlet water to determine whether the system flow is stable, serving as an auxiliary judgment parameter in the control logic. One end of the water supply pipe 55 is connected to the mixing water outlet pipe 45, and the other end is connected to the circulation pipe 46, forming a hot water circulation loop channel, providing structural support for temperature difference balance. All three types of sensors are electrically connected to the controller 51, enabling the system to form a dynamic linkage control model of temperature-flow rate-execution response. Overall, the detection mechanism 5 achieves continuous monitoring of physical quantities throughout the entire process from water intake to mixing to water return, enabling the controller 51 to sense the global status, optimize the mixing ratio in real time, adjust the turbulence intensity, and initiate actions such as slag discharge or reflux. Thermal sterilization is achieved by increasing the hot water outlet temperature. To ensure the killing of pathogens, the water temperature typically cannot be lower than 50°C, and this is achieved by circulating high-temperature water within the system for a certain period. To best achieve thermal sterilization, the temperature of the hot water circulation return water is measured. Based on the data fed back by the return water temperature sensor 53, the regulator can verify whether the entire system has reached the sterilization temperature. Because the return water temperature sensor 53 can reach the furthest point of the water supply pipe 55, it prevents harm to users during water supply periods.

[0052] Working principle of the invention:

[0053] The mixing actuator 41 is fastened to the ratchet gear 111, which drives the locking block 112 to form a hinged linkage with the three-way ball 47. The swirling turbulence is then controlled through the toothed column 116-rotating block 115 path. The rotating block 115 adopts a frustum spiral structure. The two rotating blocks 115 are respectively set towards the circulation pipe 46 and the mixing water outlet pipe 45, and the spiral directions are opposite. The reverse turbulence disperses the temperature stratification at the mixing water inlet and outlet. Combined with the switching component 12 set in the three-way ball 47, the toothed switching linkage is formed by the bevel gear set and the slider transmission structure, which effectively breaks the convection path of hot and cold water, significantly improves the temperature control response accuracy of the mixing water and stabilizes the outlet water temperature. The filtration mechanism 3 consists of a frustum-shaped inclined filter screen 322 and a filter connecting pipe 31 with a connecting cavity 311, an outlet cavity 312 and a slag discharge cavity 313. The filter screen 322 has rotating protrusions that rotatably connect with the rotating groove 3241 on the slag discharge slider 324. The slag discharge motor 321, via the opening and closing block 323 of the vortex protrusion 3231, drives the slag discharge slider 324 to open the closed portion of the lower filter screen 322, achieving periodic self-cleaning. It can also clear sediment from the water supply pipe 55 during reverse discharge. The three-chamber structure, with its varying heights, controls the natural flow direction of sediment, ensuring synchronous filtration and impurity discharge during continuous water supply. This prevents the filter screen 322 from clogging, which could cause the three-way ball 47 to jam or experience sudden changes in flow rate, significantly improving the valve's operational reliability and long-term stability. The return water temperature sensor 53, located at the far end of the mixing outlet pipe 45 and electrically connected to the controller 51, accurately reflects the temperature at the end of the hot water circuit. The controller 51, in conjunction with the iris assembly 21 and the mixing actuator 41, ensures that the hot water circulates at a high temperature of ≥50℃ for a certain period within the system. This arrangement enables the control system to not only determine whether the sterilization temperature has been reached, but also to confirm whether the water body at the far end is heated evenly as a whole. This prevents the phenomenon of "false sterilization" caused by heating only a local section of water, and achieves effective completion of the entire pipeline thermal sterilization process while maintaining user safety.

[0054] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A thermostatic mixing valve based on thermal sterilization, characterized in that: The mixing valve includes an anti-convective mechanism (1), an anti-stratification mechanism (2), a filter mechanism (3), a valve body mechanism (4), and a detection mechanism (5). The anti-convective mechanism (1) and the valve body mechanism (4) are fastened together. The anti-stratification mechanism (2) and the valve body mechanism (4) are fastened together. The filter mechanism (3) and the valve body mechanism (4) are connected together. The detection mechanism (5) and the valve body mechanism (4) are fastened together.

2. The thermostatic mixing valve based on thermal sterilization according to claim 1, characterized in that: The valve body mechanism (4) includes a mixing actuator (41), a mixing valve body (42), a hot water pipe (43), a cold water pipe (44), a mixing outlet pipe (45), a circulation pipe (46), and a three-way ball (47). The mixing actuator (41) is electrically connected to the detection mechanism (5). The mixing actuator (41) is fastened to the mixing valve body (42). The mixing actuator (41) is driven to the anti-convection mechanism (1). The anti-convection mechanism (1) is driven to the three-way ball (47). The three-way ball (47) is spherical. The three-way ball (47) is rotatably connected to the mixing valve body (42). The hot water pipe (43), the cold water pipe (44), the mixing outlet pipe (45), and the circulation pipe (46) are all connected to the mixing valve body (42).

3. A thermostatic mixing valve based on thermal sterilization according to claim 2, characterized in that: The anti-convection mechanism (1) includes an anti-convection component (11) and a switching component (12). The mixing actuator (41) and the anti-convection component (11) are connected by a drive. The switching component (12) and the anti-convection component (11) are engaged. The switching component (12) and the mixing valve body (42) are fastened together. The switching component (12) and the detection mechanism (5) are electrically connected.

4. A thermostatic mixing valve based on thermal sterilization according to claim 3, characterized in that: The anti-convection assembly (11) includes a ratchet gear (111), a snap-fit ​​block (112), a snap-fit ​​elastic element (113), a fixed column (114), a rotating block (115), a toothed column (116), a transmission bevel gear (117), and a rotating bevel gear (118). The hybrid actuator (41) is fastened to the ratchet gear (111), the snap-fit ​​block (112) is snapped to the ratchet gear (111), the snap-fit ​​block (112) is hinged to the three-way ball (47), the fixed column (114) is fastened to the three-way ball (47), the fixed column (114) is fastened to the snap-fit ​​elastic element (113), the snap-fit ​​elastic element (113) is fastened to the snap-fit ​​block (112), the toothed column (116), the transmission bevel gear (117), and the rotating bevel gear (118) are all rotatably connected to the switching assembly (12). The hybrid actuator... (41) is connected to the rotating bevel gear (118) and the transmission bevel gear (117). The transmission bevel gear (117) is connected to the switching assembly (12). The switching assembly (12) is connected to the toothed column (116). The toothed column (116) is connected to the rotating block (115). The rotating block (115) is a frustum spiral shape. There are two transmission bevel gears (117) and two rotating blocks (115). Each transmission bevel gear (117) and rotating block (115) is located on both sides of the switching assembly (12). One of the rotating blocks (115) faces the circulation pipe (46), and the other rotating block (115) faces the mixing water outlet pipe (45). The two rotating blocks (115) have opposite spiral directions. The switching assembly (12) is located inside the three-way ball (47).

5. A thermostatic mixing valve based on thermal sterilization according to claim 4, characterized in that: The switching assembly (12) includes a switching housing (121), a switching retaining ring (122), a switching slider (123), a switching elastic element (124), and a switching electromagnetic block (125). The toothed column (116), the transmission bevel gear (117), and the rotating bevel gear (118) are all rotatably connected to the switching housing (121). The switching housing (121) is fastened to the mixing valve body (42). The switching retaining ring (122) is slidably connected to the toothed column (116). The switching slider (123) is rotatably connected to the switching retaining ring (122). The switching slider (123) and the switching... The shell (121) is slidably connected, the switching elastic element (124) and the switching slider (123) are fastened together, the transmission bevel gear (117) and the switching retaining ring (122) are driven together, the switching elastic element (124) and the switching electromagnetic block (125) are fastened together, the switching electromagnetic block (125) and the switching slider (123) are driven by magnetic pole attraction, the switching retaining ring (122) is provided with an abutting protrusion (1221), the transmission bevel gear (117) is provided with a locking protrusion (1171), and the abutting protrusion (1221) and the locking protrusion (1171) are locked together.

6. A thermostatic mixing valve based on thermal sterilization according to claim 5, characterized in that: The anti-stratification mechanism (2) includes an iris assembly (21) and a homogenizing body (22). The iris assembly (21) is fastened to the circulation pipe (46). The iris assembly (21) is electrically connected to the detection mechanism (5). The hot water pipe (43) and the cold water pipe (44) are both connected to the homogenizing body (22). There are two homogenizing bodies (22). The homogenizing body (22) is provided with a homogenizing cavity (221). The homogenizing cavities (221) of the two homogenizing bodies (22) are arranged symmetrically and alternately.

7. A thermostatic mixing valve based on thermal sterilization according to claim 6, characterized in that: The filtration mechanism (3) includes a filter connecting pipe (31) and a slag discharge assembly (32). The filter connecting pipe (31) is connected to the mixing valve body (42). The filter connecting pipe (31) has a connecting cavity (311) and a water outlet cavity (312). The water outlet cavity (312) is higher than the water outlet cavity (312). The filter connecting pipe (31) has a slag discharge cavity (313). The connecting cavity (311) and the water outlet cavity (312) are connected to the slag discharge cavity (313). The slag discharge assembly (32) includes a slag discharge motor (321), a filter screen (322), an opening and closing block (323), and a slag discharge slider (324). The filter screen (322) is a frustum-shaped structure with both the top and bottom connected. The filter screen (322) and the filter connecting pipe (31) rotate. The filter screen (322) is provided with filter holes and is arranged at an angle. The filter holes are connected to the connecting cavity (311). The slag discharge motor (321) and the filter connecting pipe (31) are fastened together. The slag discharge motor (321) and the opening and closing block (323) are connected in a driving manner. The slag discharge slider (324) and the filter connecting pipe (31) are slidably connected. The opening and closing block (323) and the slag discharge slider (324) are connected in a driving manner. The opening and closing block (323) is provided with a vortex-shaped protrusion (3231). The opening and closing block (323) is annular. The slag discharge slider (324) has a rotating groove (3241). The filter screen (322) is provided with a rotating protrusion (3221). The rotating protrusion (3221) and the rotating groove (3241) are rotatably connected.

8. A thermostatic mixing valve based on thermal sterilization according to claim 7, characterized in that: The detection mechanism (5) includes a controller (51), a water supply temperature sensor (52), a return water temperature sensor (53), a flow rate sensor (54), and a water supply pipe (55). The slag discharge motor (321), the iris assembly (21), and the mixing actuator (41) are all electrically connected to the controller (51). The water supply temperature sensor (52) and the water supply pipe (55) are tightly connected. The return water temperature sensor (53) and the mixed water outlet pipe (45) are tightly connected. The flow rate sensor (54) and the return water temperature sensor (53) are tightly connected. The water supply pipe (55) and the mixed water outlet pipe (45) are connected. The water supply pipe (55) and the circulation pipe (46) are connected. The water supply temperature sensor (52), the return water temperature sensor (53), and the flow rate sensor (54) are all electrically connected to the controller (51).

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