Hot water system and purifying and heating all-in-one machine

Abstract

The utility model discloses a hot water system and a clean heat all-in-one machine, the clean heat all-in-one machine comprises the hot water system, the hot water system comprises a hot tank assembly, a water pump assembly, a water supplementing pipeline, a backflow pipeline and a flow control piece, the hot tank assembly comprises a tank body and a heating piece, the heating piece is installed on the tank body, and the tank body is provided with a water outlet and a water inlet; the hot water pipeline is communicated with the water outlet; the water replenishing pipeline is communicated with the water inlet; the water pump assembly is arranged on the hot water pipeline and used for pumping water in the tank body to flow out to the water outlet end of the hot water pipeline through the water outlet. The backflow pipeline is communicated with the hot water pipeline and the water supplementing pipeline, and the backflow pipeline is connected to the position, located at the downstream position of the water suction pump, of the hot water pipeline; the water pumping efficiency of the hot water system is improved in the hot water supply process of the purification and heating all-in-one machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to drinking water device technical field, especially a hot water system and net heat all -in -one. BACKGROUND

[0002] In the related art, in the drinking water equipment with filtering and heating functions, a large amount of bubbles is generated when water is heated to boil, which has an adverse effect on the drainage efficiency in the process of discharging hot water. SUMMARY

[0003] The hot water system and the net heat all-in-one machine can improve the water pumping efficiency of the hot water system during the provision of hot water by the net heat all-in-one machine.

[0004] In the first aspect, the embodiments of the present application provide a hot water system, which comprises a hot tank assembly, a water pump assembly, a backflow pipeline and a flow control member, the hot tank assembly comprises a tank body and a heating member, the heating member is installed on the tank body, the tank body has a water outlet and a water inlet; a hot water pipeline is connected to the water outlet; a water replenishment pipeline is connected to the water inlet; the water pump assembly is arranged on the hot water pipeline and is used for pumping water in the tank body to flow out to the water outlet end of the hot water pipeline; the backflow pipeline is connected to the hot water pipeline and the water replenishment pipeline, and the backflow pipeline is connected to the position of the hot water pipeline downstream of the water pump; and the flow control member is used to adjust the water flow of the backflow pipeline.

[0005] In some embodiments, the flow control member is a flow limiting plug.

[0006] In some embodiments, the flow control member is a reversing valve, which is arranged at the connection between the water inlet end of the backflow pipeline and the hot water pipeline and selectively guides the water in the tank body to flow to the water outlet end of the hot water pipeline or the backflow pipeline.

[0007] In some embodiments, the flow control member comprises:

[0008] a first electromagnetic valve, which selectively connects the water outlet end of the water pump assembly and the water inlet; and

[0009] a second electromagnetic valve, which selectively connects the water outlet end of the water pump assembly and the water outlet end of the hot water pipeline.

[0010] In some embodiments, the hot water system further comprises:

[0011] a water replenishment pipeline, which is connected to and communicates with the tank body; and

[0012] an exhaust pipeline, which communicates between the inside and the outside of the tank body and is connected to the top of the tank body.

[0013] In some embodiments, the tank body comprises a tank body, a tank top cover and a tank bottom cover, the tank body is provided with the water outlet.

[0014] In some embodiments, the water pump assembly comprises a water pump and a water inlet pipe, the water pump is communicated with the water outlet through the water inlet pipe.

[0015] The water inlet pipe is connected to the water outlet, and the inner diameter of the water inlet pipe is increased in the direction from the water pump to the water outlet, forming a flared structure.

[0016] In some embodiments, the water pump assembly comprises a water pump with a water pump inlet, the water pump is connected to the tank body, and the water pump inlet is directly communicated with the water outlet.

[0017] The hot water system further comprises a second sealing ring, the second sealing ring is clamped between the water pump and the tank body, and is annularly arranged outside the water pump inlet and the water outlet.

[0018] In some embodiments, the water pump comprises:

[0019] A pump shell is provided with the water pump inlet, and the outer side wall of the pump shell is provided with a first annular limiting portion surrounding the water pump inlet.

[0020] The second sealing ring is limited in the first annular limiting portion.

[0021] In some embodiments, the water pump comprises:

[0022] A pump shell is provided with the water pump inlet, and the pump shell is provided with a second connecting hole.

[0023] The tank body is provided with a first connecting hole.

[0024] The first connecting hole and the second connecting hole are sequentially penetrated by the fastener to relatively fix the tank body and the pump shell.

[0025] In some embodiments, a third sealing ring is further included, the third sealing ring is clamped between the tank body and the pump shell, and is annularly arranged around the first connecting hole and the second connecting hole.

[0026] In some embodiments, the outer side wall of the pump shell is provided with a second annular limiting portion surrounding the second connecting hole, and the third sealing ring is limited in the second annular limiting portion.

[0027] In some embodiments, the water pump comprises:

[0028] The pump shell is provided with the water pump inlet, the outer diameter of the water pump inlet is smaller than the outer diameter of the water outlet, the top of the pump shell is provided with at least two oppositely arranged positioning portions, the positioning portions are located outside the water pump inlet, and the outer wall surface of the positioning portions abuts against the inner wall of the water outlet.

[0029] In a second aspect, the embodiments of the present application provide a heat and water purification integrated machine, comprising:

[0030] A housing assembly;

[0031] A hot water system as described above, installed in the housing assembly; and

[0032] A filtration system installed in the housing assembly, the filtration system being in communication with the hot water system.

[0033] In some embodiments, the heat and water purification integrated machine further comprises a controller, a first temperature sensor, a second temperature sensor, and a faucet, the filtration system comprises a booster pump, a filter element, and a purified water pipe connected to the outlet of the filter element, the purified water pipe and a water outlet pipe in communication with the water outlet are both connected to the faucet, and the hot water system has a heating cavity;

[0034] The first temperature sensor is configured to detect the temperature in the heating cavity, the second temperature sensor is configured to detect the temperature of the purified water in the purified water pipe, and the controller is configured to receive the detection values of the first temperature sensor and the second temperature sensor and control the operating power of the booster pump to form water at a set temperature value at the faucet

[0035] In the present application, the air pressure inside the tank will decrease during the water pumping process. In an environment with low air pressure, gas is more likely to expand and flow, which makes it easier for the gas in the pipeline to be sucked into the water pump, thereby increasing the risk of air blockage of the water pump and affecting the water pumping efficiency and stability of the water pump. The present application connects the hot water pipeline and the water replenishment pipeline through the backflow pipeline, which can alleviate the decrease of air pressure in the tank to some extent. In addition, the present application is also equipped with a flow control member to adjust the water flow in the backflow pipeline. Through the flow control member, the water flow in the backflow pipeline can be ensured to remain at an appropriate level, which can effectively balance the pressure and avoid too small flow rate at the outlet of the hot water pipeline, so as to ensure sufficient supply of hot water while ensuring system stability. For example, when the hot water system starts or the load suddenly increases, the backflow pipeline provides a larger flow rate to balance the pressure of the system by controlling the flow control member. When the hot water system is stably running and the load changes slightly, the backflow pipeline can maintain the balance state of the hot water system by controlling the flow control member to have a smaller flow rate. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in the drawings without creative labor.

[0037] Figure 1 It is a structural schematic diagram of an embodiment of the net heat all-in-one machine of the present application.

[0038] Figure 2 It is an assembly structure schematic diagram of the outer shell and the middle shell of the net heat all-in-one machine of the present application.

[0039] Figure 3 It is a structural schematic diagram of the net heat all-in-one machine after removing the outer shell of the present application.

[0040] Figure 4 It is an assembly structure schematic diagram of the middle shell and the heat shield of the net heat all-in-one machine of the present application.

[0041] Figure 5 It is a water path flow path diagram of the net heat all-in-one machine of the present application.

[0042] Figure 6 It is a structural schematic diagram of the middle shell of the net heat all-in-one machine of the present application.

[0043] Figure 7 It is a structural schematic diagram of the net heat all-in-one machine after removing the side plate of the present application.

[0044] Figure 8 It is a water path schematic diagram of the hot water system of the first embodiment of the present application.

[0045] Figure 9 It is a water path schematic diagram of the hot water system of the second embodiment of the present application.

[0046] Figure 10 It is a water path schematic diagram of the hot water system of the third embodiment of the present application.

[0047] Figure 11 It is a partial structure schematic diagram of the hot water system of the present application of an embodiment.

[0048] Figure 12 It is a partial structure schematic diagram of the hot water system of the present application of another embodiment.

[0049] Figure 13 It is an exploded schematic diagram of the water pump, the second sealing ring, the third sealing ring and the screw member of the present application.

[0050] Figure 14 It is a structural schematic diagram of the water pump of the present application.

[0051] BRIEF DESCRIPTION OF DRAWINGS

[0052] 1. A heat and water purifier; 10. A housing assembly; 12. A middle shell; 121. A base plate; 122. A waterway board support seat; 1221. A seat body; 1222. A limiting plate; 123. A filter support seat; 1231. An installation cavity; 1232. An installation opening; 124. A fence; 1241. A first plate body; 1242. A second plate body; 125. A support base; 126. A support member; 10A. An outer shell; 11. A faceplate; 13. A backplate; 14. A top plate; 15. A bottom plate; 16. A side plate; 10a. A cavity; 103. A hot tank cavity; 20. A hot tank assembly; 21. A tank body; 21a. A heating cavity; 211. A tank body; 212. A tank top cover; 213. A tank bottom cover; 214. A water inlet; 215. An exhaust port; 216. A water outlet; 218. A connecting water pipe; 219. A water inlet; 22. A heating element; 201. A hot water pipeline; 202. A backflow pipeline; 2031. A flow limiting plug; 2032. A reversing valve; 2033. A first electromagnetic valve; 2034. A second electromagnetic valve; 204. A water replenishment pipeline; 205. An exhaust pipeline; 30. A water pump; 35. A water inlet portion; 351. A water pump inlet; 32. A water inlet pipe; 38. A screw element; 50. A filter system; 51. A first-stage filter element; 52. A second-stage filter element; 53. A booster pump; 60. A waterway board; 61. A first waterway board; 62. A second waterway board; 63. A water inlet valve; 64. A check valve; 65. A waste water plug; 66. A water replenishment valve; 70. A heat insulation member; 71. A heat insulation cover; 80. A control board; 90A. A water leakage probe; 2. An electronic faucet; 3. A pipeline machine.

[0053] The object, functional features and advantages of the present application will be further described with reference to the accompanying drawings. DETAILED DESCRIPTION

[0054] In order to make the object, technical scheme and advantages of the present application more clear, the following will make further detailed description to the embodiments of the present application with reference to the accompanying drawings.

[0055] The following description of the example embodiments refers to the accompanying drawings, wherein like numbers refer to like elements or similar elements. The following description of the example embodiments does not represent all embodiments consistent with the present application. Rather, they are merely examples of some embodiments consistent with the present application as detailed in the appended claims.

[0056] In the description of the utility model, it is understood that the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. In addition, in the description of the utility model, "multiple" refers to two or more than two, and "and / or" describes the relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the following three cases: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0058] Please refer to Figures 1 to 3 The application provides a pure hot integrated machine 1, in the embodiment of the application, the pure hot integrated machine 1 includes shell assembly 10, waterway plate 60, filter system 50 and hot water system. Wherein, the hot water system includes hot tank assembly 20 and water pump assembly.

[0059] Wherein, the shell assembly 10 is as the external frame of the whole pure hot integrated machine 1, and the overall external contour is arranged as a rectangular body. Especially suitable for installation and placement in the kitchen area. The kitchen usually has regular cabinet space, and the rectangular pure hot integrated machine 1 can be easily embedded below the cabinet or placed in the corner of the kitchen countertop, and integrated with the overall environment of the kitchen.

[0060] Waterway plate 60 is used to provide water flow channel so that the pure water filtered by filter system 50 can flow to hot tank assembly 20 for heating, and the water flow channel of waterway plate 60 can also discharge the waste water filtered. By setting waterway plate 60 inside shell assembly 10, the protection performance of shell assembly 10 is fully utilized to protect waterway plate 60. A plurality of water flow channels can be provided in waterway plate 60, which is more convenient and fast to install compared with traditional dispersed water pipe connection. In terms of the material of waterway plate 60, high-strength and corrosion-resistant composite material is selected. This material not only has excellent chemical corrosion resistance and can effectively resist the corrosion of various acid-base substances that may exist in water to waterway plate 60, but also has a unique molecular structure that can maintain the integrity of the structure and the stability of the size of waterway plate 60 under long-term water flow pressure and temperature changes, thereby ensuring the smoothness of the water flow channel.

[0061] Referring toFigure 4 In some embodiments, the waterway plate 60 comprises a first waterway plate 61 and a second waterway plate 62 connected in communication, the filter system 50 and the hot tank assembly 20 are respectively located on opposite sides of the first waterway plate 61, and the second waterway plate 62 is arranged at an angle with the first waterway plate 61. Specifically, the second waterway plate 62 and the first waterway plate 61 can be arranged at a vertical angle of 90 degrees. This standardized 90-degree angle design facilitates mold development and standardization of production processes, reduces production costs and production cycles, and also facilitates maintenance personnel to quickly locate and replace waterway plate 60 components when the equipment fails, reducing maintenance time and cost. Of course, the angle between the first waterway plate 61 and the second waterway plate 62 can also be 70°, 80°, 100°, 110°, etc. The above arrangement can optimize the internal space utilization and performance of the shell assembly 10, and can be flexibly arranged according to the actual space form inside the shell assembly 10, effectively adapt to the installation position of the filter system 50 and the hot tank assembly 20, avoid the problem of space waste caused by the structure limitation of the traditional waterway plate 60, make the connection between each component more compact and efficient, reduce unnecessary pipe length and complexity, reduce water flow resistance, thereby improving water purification efficiency and water flow stability, reducing the risk of water leakage, and ensuring the reliable operation of the water purification and heating all-in-one machine 1.

[0062] The filter system 50 is a key part of the water purifier 1. By being arranged inside the shell assembly 10, the filter system 50 makes full use of the protective performance of the shell, avoiding the interference of dust, water vapor and other possible pollutants on the filtering process, thereby ensuring the reliability and stability of the filtering effect. The filter system 50 and the hot tank assembly 20 are connected through the waterway plate 60. The filter system 50 includes a primary filter core 51, a secondary filter core 52 and a booster pump 53. The primary filter core 51 and the secondary filter core 52 are connected and communicated through the waterway plate 60, and the booster pump 53 is used to deliver the liquid filtered by the primary filter core 51 to the secondary filter core 52 through the waterway plate 60. The primary filter core 51 can be PAC (Polyaluminium Chloride, polyaluminium chloride), which is used as a primary filtering unit and mainly intercepts and removes larger impurities, suspended solids, part of colloids and some microorganisms in water. The filtering material used has a larger pore size and surface area, which can efficiently capture these larger pollutants and prevent them from entering the subsequent filtering link, thereby protecting the secondary filter core 52 from excessive clogging and pollution and prolonging the service life of the entire filter system 50. The booster pump 53 plays an important role in the filter system 50. Its main function is to provide sufficient pressure for the water filtering process to ensure that the water preliminarily filtered by the primary filter core 51 can pass through the waterway plate 60 or the water pipe into the secondary filter core 52 for deep purification at a stable and appropriate flow rate. The water preliminarily filtered by the primary filter core 51 is delivered to the secondary filter core 52 through the waterway plate 60 under the action of the booster pump 53. The secondary filter core 52 can be RO (Reverse Osmosis, reverse osmosis), which is a key link for deep purification. It uses more fine filtering material to effectively remove harmful substances such as small particles, dissolved organic matter, heavy metal ions, bacteria and viruses in water. These small pollutants often pose a potential threat to human health. Through the fine filtering of the secondary filter core 52, safe, pure and healthy drinking water can be provided for users.

[0063] The hot tank assembly 20 is used to store and heat the filtered pure water, so as to meet the user's demand for hot water at any time and improve the functionality and practicality of the device.

[0064] The water pump 30 is arranged in the shell assembly 10 and communicates with the waterway plate 60, so that the hot water in the hot tank assembly 20 is pumped out by the water pumping performance of the water pump 30 and is discharged through the waterway plate 60, so that the net heat all-in-one machine 1 can provide efficient and stable water supply service, and users do not need to worry about the influence of insufficient water pressure or unstable water flow on normal domestic water use. The water inlet valve 63, the one-way valve 64, the waste water plug 65 and the water replenishment valve 66 can be installed on the waterway plate 60. The water inlet valve 63 is used to control the conduction of the waterway on the waterway plate 60 into the filtering system 50. The one-way valve 64 is located between the filtering system 50 and the hot tank assembly 20 to avoid backflow of the filtered water flow. For reference Figure 5 , so that the water flow direction of the present application is as follows: tap water first flows into the waterway plate 60 from the interface of the waterway plate 60, and then completes the primary filtration through the primary filter element 51. Then, under the drive of the booster pump 53, the water flow is filtered again through the secondary filter element 52. The waste water after two-stage filtration is discharged through the waste water plug 65, and the pure water is divided into two routes through the one-way valve 64. One route can supply the external pipeline machine 3 to directly output normal temperature water; the other route flows to the hot tank assembly 20 after the water replenishment valve 66 is opened, and becomes hot water under the heating action of the hot tank assembly 20. When the user opens the electronic faucet 2, the water pump 30 starts to pump out the hot water in the hot tank assembly 20 for use. In addition, the exhaust pipe 205 of the hot tank assembly 20 is directly communicated with the electronic faucet 2 to ensure the smoothness and safety of gas discharge.

[0065] However, due to the large number of components of the filtering system 50 and the hot tank assembly 20 and the lack of systematicness of the installation sequence, problems such as limited operation space, inaccurate positioning of components and difficulty in immediate debugging and detection often occur during assembly, resulting in low assembly efficiency and low product qualification rate. To solve the above problems, the shell assembly 10 of the present application includes a middle shell 12 and an outer shell 10A, the outer shell 10A is arranged around the outer periphery of the middle shell 12, the waterway plate 60, the filtering system 50 and the hot tank assembly 20 are all connected to the middle shell 12.

[0066] Based on the above embodiment, by adopting the shell assembly 10 including the middle shell 12 and the outer shell 10A, and connecting the waterway plate 60, the filtering system 50 and the hot tank assembly 20 to the middle shell 12, the assembly process and performance of the net heat all-in-one machine 1 are greatly optimized. In terms of assembly, the middle shell 12 provides a stable and relatively independent assembly platform for each component, solving the assembly problem caused by limited operation space, and workers can more conveniently and accurately position and install the filtering system 50 and the hot tank assembly 20, improving the assembly efficiency and accuracy. Compared with direct assembly in the outer shell 10A, operation on the middle shell 12 can reduce the inconvenience caused by the shape and space limitation of the outer shell 10A.

[0067] Meanwhile, this connection mode facilitates immediate debugging and detection of each component during assembly, i.e., after the filter system 50 and the hot tank assembly 20 are installed on the middle shell 12, preliminary debugging and detection can be performed on the functional modules on the middle shell 12, potential problems can be found and solved in time, the workload of rework and maintenance is reduced, the product qualification rate is effectively improved, and the production cost is reduced. In contrast, if detection is performed after the outer shell 10A is closed, once a problem is found, the outer shell 10A needs to be disassembled for maintenance, which increases the difficulty and cost of maintenance. From the performance point of view, the stable assembly structure ensures the connection reliability between the waterway board 60, the filter system 50, and the hot tank assembly 20, ensures the stable transmission of water flow and the effective utilization of heat, improves the overall operation stability and reliability of the equipment, and thus provides users with a more stable and efficient hot and clean integrated functional experience.

[0068] It should be noted that the outer shell 10A and the middle shell 12 are fixed by screws or buckles, etc., to ensure close combination and maintain the stability and protection of the overall structure, and to protect the internal components from external interference. It should be noted that the outer shell 10A can include a faceplate 11, a backplate 13, a top plate 14, side plates 16, and a bottom plate 15. The faceplate 11 is located on the front of the hot and clean integrated machine 1 and is provided with components such as an operation interface and indicator lights. The backplate 13 is located at the rear of the hot and clean integrated machine 1 and is tightly connected with the side plates 16 to close the rear of the hot and clean integrated machine 1. The top plate 14 is located at the top of the hot and clean integrated machine 1, and the side plates 16 are wrapped around the two sides of the hot and clean integrated machine 1 and seamlessly connect with other plates. The bottom plate 15 bears the weight of the hot and clean integrated machine 1 and isolates the ground.

[0069] In combination with reference Figure 6 In some embodiments, the middle shell 12 includes a base plate 121, a waterway board support seat 122, and a filter support seat 123. The base plate 121 includes oppositely arranged mounting and abutting surfaces, the abutting surface is fixedly abutted with the inner wall of the outer shell 10A, and the hot tank assembly 20 is connected to the mounting surface. Among them, the base plate 121 as a basic component plays a key role in the oppositely arranged mounting and abutting surfaces. The abutting surface is fixedly abutted with the inner wall of the outer shell 10A to form a stable connection structure, which effectively enhances the pressure resistance of the entire shell assembly 10, so that the hot and clean integrated machine 1 can better protect the internal components from damage when subjected to external pressure or impact, thereby prolonging the service life of the hot and clean integrated machine 1 and reducing the maintenance cost and replacement frequency of the user due to the failure of the hot and clean integrated machine 1. The hot tank assembly 20 can be fixed to the mounting surface by screw or buckle connection, etc.

[0070] The waterway plate support seat 122 is connected to the mounting surface, and the waterway plate 60 is connected to the waterway plate support seat 122. After the waterway plate 60 is connected to the waterway plate support seat 122, a stable working state can be maintained to avoid displacement or deformation due to its own weight or water flow impact. The stable waterway plate 60 can ensure smooth internal flow channels, reduce water flow resistance, improve water transmission efficiency, make the water purification process more efficient and fast, and meet the user's demand for stable water supply. Moreover, precise support positioning helps to improve the connection accuracy of the waterway plate 60 and other components, further reducing the risk of water leakage and ensuring the sealing and reliability of the entire water purification system.

[0071] The filter support seat 123 is connected to the mounting surface and is spaced apart from the waterway plate support seat 122, and the filter system 50 is connected to the filter support seat 123. In this way, a dedicated mounting position is provided for the filter system 50. After the filter system 50 is connected to the filter support seat 123, it can work in a relatively stable and independent space, reducing external factors that interfere with the filtering process and ensuring the stability and reliability of the filtering effect. At the same time, the spaced structure is beneficial to optimize the internal space layout of the equipment, making the connection between components more reasonable and compact, facilitating the installation, maintenance and repair of the equipment. Maintenance personnel can more conveniently replace the filter core, clean and other operations of the filter system 50, reducing the difficulty and cost of maintenance and improving the maintainability of the equipment.

[0072] The above arrangement allows the waterway plate 60, the filter system 50 and the hot tank assembly 20 to be located on one side of the mounting surface of the base plate 121. From the perspective of production and assembly convenience, concentrating these key components on the same side of the mounting surface of the base plate 121 allows workers to sequentially and orderly install components such as the waterway plate 60, the filter system 50 and the hot tank assembly 20 in a relatively fixed position and direction without complex flipping operations, greatly shortening the assembly time, reducing labor input and improving production efficiency. This same-side layout also plays an important role in the overall stability and reliability of the equipment. Since the waterway plate 60, the filter system 50 and the hot tank assembly 20 and other components are more closely and stably positioned relative to each other after installation, connection looseness, displacement and other problems that may occur due to the distribution of components on different sides are reduced.

[0073] Further, the middle shell 12 further comprises a surrounding wall 124 connected to the edge of the mounting surface, the waterway plate support seat 122, the filter support seat 123, the base plate 121 and the plurality of baffles surround to form a cavity 10a, and the heat tank assembly 20 and the waterway plate 60 are located in the cavity 10a. From the overall structure of the device, the presence of the surrounding wall 124 further perfects the structural integrity of the middle shell 12 and enhances the protection capability of the internal components. It can effectively block the external dust, water vapor and other possible impurities from entering the cavity 10a. The cavity 10a provides a relatively stable and independent working environment for the heat tank assembly 20 and the waterway plate 60. Due to the space formed by the close surrounding of various components, the interference of external factors on the heat tank assembly 20 and the waterway plate 60 is reduced. In addition, when maintenance or repair of the device is required, the presence of the cavity 10a enables the maintenance personnel to more clearly locate and operate the heat tank assembly 20 and the waterway plate 60 and their related components. Compared with the open or loose structure of the device, the surrounding cavity 10a reduces the difficulty of component searching and troubleshooting, improves the maintenance efficiency, reduces the maintenance cost and time.

[0074] By way of example Figure 3 , Figure 4 and Figure 7 , in some embodiments, the net heat all-in-one machine 1 further comprises a heat insulation member 70 arranged in the shell assembly 10 and separating the cavity 10a of the shell assembly 10 into a filter element cavity and a heat tank cavity 103, the filter system 50 is located in the filter element cavity, and the heat tank assembly 20 is located in the heat tank cavity 103. By separating the cavity 10a of the shell assembly 10 into the filter element cavity and the heat tank cavity 103 through the heat insulation member 70, on the one hand, the heat radiation from the heat tank assembly 20 during operation to the filter system 50 is effectively blocked, avoiding the problems of accelerated aging of the filter material, reduced filtering efficiency and precision due to heat radiation, ensuring that the filter system 50 can maintain high filtering performance for a long time, thereby continuously and stably providing clean and safe drinking water for users. On the other hand, due to the heat insulation effect of the heat insulation member 70 on the heat tank assembly 20, the influence of heat on the temperature of the normal temperature water is weakened, so that the normal temperature water can be maintained in a suitable temperature range, ensuring the user's demand for the quality of the normal temperature water and avoiding the problems of water quality change and taste change due to the temperature rise of the normal temperature water. At the same time, it prevents the deformation and damage of the sealing material inside the filter system 50 and the interference of sensitive electronic elements or sensors due to high temperature, reduces the probability of water leakage failure of the device, improves the overall operation stability and safety of the device, reduces the use cost and maintenance frequency of the user, and brings a more reliable and convenient use experience to the user.

[0075] Further, the heat insulation member 70 comprises a heat insulation cover 71, which is detachably connected to the middle shell 12 and forms a heat tank cavity 103 together with the middle shell 12. The heat insulation cover 71 can effectively reduce the heat loss of the heat tank assembly 20 to the ambient environment, and improve the utilization efficiency of heat. Compared with the traditional coating type heat insulation material on the heat tank assembly 20, the heat insulation cover 71 has better integrity and stability. The coating type heat insulation material may crack, peel off and the like over time, thereby reducing the heat insulation effect, while the heat insulation cover 71 as an independent structural component can always maintain complete heat insulation performance, effectively block the heat loss of the heat tank assembly 20 to the ambient environment, and improve the utilization efficiency of heat. At the same time, compared with some embedded heat insulation structures, the detachable characteristic of the heat insulation cover 71 provides great convenience for maintenance personnel. When the heat tank assembly 20 needs to be repaired or replaced due to failure, the maintenance operation is often extremely complex, and a large number of surrounding components may need to be removed to access the heat tank assembly 20, while the heat insulation cover 71 can be easily detached from the middle shell 12, and the heat tank assembly 20 can be directly operated without the need to struggle in the complex heat insulation structure to find and handle the failed components, thereby greatly shortening the maintenance time and downtime, improving the availability and maintenance efficiency of the equipment. In addition, the heat insulation member 70 can further comprise a heat insulation layer attached to the middle shell 12, so as to further improve the heat insulation effect.

[0076] Further, the enclosure 124, the base plate 121, the filter support seat 123 and the waterway plate support seat 122 are integrated components. In this way, the integrated design greatly enhances the overall strength and rigidity of the middle shell 12. There is no connection gap or weak point between the parts, so that the middle shell 12 can more stably withstand the weight from the internal water tank, the waterway plate 60 and the filter system 50, and external impact force and vibration, effectively preventing deformation, displacement or damage of the components due to long-term use or accidental collision, ensuring stable operation of the internal precision components of the equipment, reducing the probability of equipment failure, and prolonging the service life of the equipment.

[0077] Referring to Figure 6 and Figure 7In some structural forms, the filter support seat 123 and the waterway plate support seat 122 are arranged in sequence along the front-rear direction of the shell 10A, and the hot tank assembly 20 is located on the side of the waterway plate support seat 122 away from the filter support seat 123. In this way, the filter support seat 123 is arranged away from the hot tank assembly 20, which can effectively reduce the high-temperature influence of the hot tank assembly 20 on the filter system 50. Since the hot tank assembly 20 generates heat during operation, if it is too close to the filter system 50, the high-temperature environment may have a negative impact on the performance of the filter material. By keeping a certain distance between the filter support seat 123 and the hot tank assembly 20, the filter system 50 can be kept in a relatively stable and suitable temperature environment, ensuring the stability of the performance of the filter material, maintaining the efficient filtering effect, prolonging the overall service life of the filter system 50, reducing the user's use and maintenance costs, and improving the reliability and durability of the product.

[0078] Further, the filter support seat 123 is provided with a mounting cavity 1231, and the side of the filter support seat 123 away from the waterway plate support seat 122 is provided with a mounting opening 1232 communicating with the mounting cavity 1231. The mounting opening 1232 is used for the filter core of the filter system 50 to pass through and be mounted in the mounting cavity 1231. It can be understood that when the filter core passes through the mounting opening 1232 and is fixed in the mounting cavity 1231, the filter core and the filter support seat 123 form a tightly integrated whole. In this way, it can effectively prevent the filter core from being displaced, loosened, or even damaged due to water flow impact, equipment vibration, or other external factors, thereby ensuring the stability and reliability of the filter system 50 and enabling the filtering process to continue and be efficient. From the perspective of long-term use, the stable filter core mounting method reduces the risk of filter medium wear and leakage caused by frequent shaking or displacement of the filter core, prolongs the service life of the filter core, and reduces the frequency and cost of replacing the filter core for the user. At the same time, the stable filtering process also ensures the stability of the water quality, providing a solid foundation for the stable operation of the waterway plate 60 and the entire water and heat integrated machine 1, reducing the potential damage to other parts of the equipment caused by water quality fluctuations, reducing the overall maintenance rate and maintenance cost of the equipment, and improving the durability and performance stability of the equipment. In addition, the avoidance hole is provided at the end of the filter support seat 123 away from the mounting opening 1232, and the avoidance hole is used for the filter core to communicate with the waterway plate 60. The existence of the avoidance hole optimizes the connection structure between the filter core and the waterway plate 60. Compared with a complex or indirect connection method, it reduces the potential connection loosening, water leakage, and other failure points, making the communication between the filter core and the waterway plate 60 more tightly and stably connected.

[0079] It should be noted that when the filter system 50 includes a primary filter element 51 and a secondary filter element 52, the corresponding two installation cavities 1231 on the filter support seat 123 further optimize the installation and management of the filter elements. This design allows filter elements with different functions to be installed and work in their own independent and adapted space, avoiding mutual interference and influence between different filter elements, ensuring that each filter element can fully exert its due filtering efficiency, and improving the filtering precision and efficiency of the entire filter system 50.

[0080] Further, the waterway board support seat 122 includes a seat body 1221 and a limiting plate 1222, the seat body 1221 is connected to the installation surface, the limiting plate 1222 is connected to the side of the seat body 1221 away from the installation surface, the waterway board 60 is detachably connected to the seat body 1221, and the surface of the waterway board 60 facing the thermal tank assembly 20 abuts against the limiting plate 1222. Among them, the characteristic that the waterway board 60 is detachably connected to the seat body 1221 greatly optimizes the maintenance and repair process of the equipment. When the waterway board 60 is blocked, leaks or has other faults, maintenance personnel can quickly and conveniently detach it from the seat body 1221 for targeted inspection, cleaning or component replacement operation without the need to disassemble the entire equipment. This not only significantly shortens the maintenance time and reduces the downtime. Secondly, the presence of the limiting plate 1222 can accurately control the safety distance between the waterway board 60 and the thermal tank assembly 20, avoiding the waterway board 60 from being too close to the thermal tank assembly 20 after installation due to various factors. Through the effective constraint of the limiting plate 1222 on the position of the waterway board 60, it ensures that the normal temperature water can maintain a stable and suitable temperature state in the waterway, so that various physical and chemical properties of water can be maintained at a normal level, thereby ensuring that the subsequent filtering, purification and other links can be carried out according to the expected standard and effect, improving the water quality and stability.

[0081] With reference to Figure 3 and Figure 4 Optionally, the middle shell 12 further includes a support member 126, the support member 126 is connected to the filter support seat 123 and the enclosure 124, and the water purification and heating integrated machine 1 further includes a control panel 80, the control panel 80 is fixed to the side of the support member 126 away from the installation surface, and the control panel 80 is electrically connected with the thermal tank assembly 20. From the overall layout and stability of the equipment, the support member 126 as a key component connecting the filter support seat 123 and the enclosure 124 enhances the integrity and rigidity of the internal structure of the middle shell 12. It can effectively disperse and withstand various stresses generated during the operation of the equipment, whether it is the force caused by water flow impact, thermal expansion and contraction, or external vibration and other factors, which can be reasonably distributed and buffered through the support member 126, thereby ensuring the relative position stability of the filter support seat 123, the enclosure 124 and other internal components.

[0082] In terms of the operating environment and safety of the control panel 80, it is fixed to the side of the support member 126 away from the installation surface and electrically connected with the thermal tank assembly 20, which has obvious advantages. On the one hand, this position is far away from the possible water source and humid environment, reducing the risk of short circuit, damage or malfunction of the control panel 80 due to water vapor erosion, ensuring the stable and reliable electrical performance of the control panel 80, and ensuring that it can accurately monitor and control the heating process, temperature regulation and other related functions of the thermal tank assembly 20. On the other hand, the close electrical connection with the thermal tank assembly 20 enables the control panel 80 to obtain real-time and accurate working state information of the thermal tank assembly 20 and make timely adjustments and feedback, optimizing the heating efficiency and energy utilization rate of the thermal tank assembly 20 and avoiding excessive heating or insufficient heating, etc., which not only ensures that users can obtain hot water at appropriate temperature at any time, but also saves energy consumption. From the perspective of equipment maintenance and upgrade convenience, this structural design provides great convenience for subsequent operation. When the control panel 80 needs to be checked, repaired or upgraded, maintenance personnel can relatively easily reach the control panel 80 position on the support member 126 through a reasonable disassembly path without the need for large-scale disassembly and complex operation of the entire device, saving maintenance time and labor cost and improving the maintainability and upgradability of the device.

[0083] Further, the net heat all-in-one machine 1 also includes a water leakage probe 90A connected to the support member 126 and abutting the bottom surface of the outer shell 10A in the height direction. From the perspective of accuracy and timeliness of water leakage detection, the water leakage probe 90A in this position can efficiently monitor possible water leakage at the bottom of the net heat all-in-one machine 1. Since water tends to accumulate at the bottom of the device under the action of gravity, the water leakage probe 90A directly abuts the bottom surface of the outer shell 10A and can quickly sense and transmit signals to the control system once extremely small amount of water leakage occurs, triggering the corresponding alarm mechanism or taking emergency protection measures such as cutting off the power supply and stopping the waterway operation. This accurate and rapid water leakage detection capability greatly reduces the risk of short circuit, electrical failure of the net heat all-in-one machine 1 and damage to the surrounding environment due to undetected water leakage in time, effectively protecting the internal precision components of the net heat all-in-one machine and the safety of users.

[0084] The following will be described in detail with reference to the accompanying drawings Figure 8 to the accompanying drawings Figure 14 The hot water system will be described in detail.

[0085] Please refer to Figure 8The hot water system comprises a hot tank assembly 20, a water pump assembly, a hot water pipeline 201, a backflow pipeline 202 and a flow control device. The hot tank assembly 20 comprises a tank body 21 and a heating element 22. The tank body 21 has a heating cavity 21a. The heating element 22 is installed in the tank body 21. The heating element 22 can be installed in the heating cavity 21a, installed outside the tank body 21 and attached to the outer surface of the tank body 21, or embedded in the tank body 21. The tank body 21 has a length direction. The heating element 22 extends along the length direction of the tank body 21, so as to improve the heating efficiency of the heating element 22 on the water in the heating cavity 21a. The tank body 21 comprises a tank body 211, a tank top cover 212 and a tank bottom cover 213. The tank body 211, the tank top cover 212 and the tank bottom cover 213 enclose the heating cavity 21a.

[0086] The tank body 21 has a water outlet 216 and a water inlet 214 which are connected to the heating cavity 21a. The water outlet 216 can be arranged at the lower part of the tank body 211. The water inlet 214 can be arranged at the tank top cover 212 or the upper part of the tank body 211. The water inlet end of the hot water pipeline 201 is connected to the water outlet 216. The water pump assembly is arranged on the hot water pipeline 201, and is used to pump the water in the tank body 21 out of the tank body 21 through the water outlet 216 to the water outlet end of the hot water pipeline 201. The backflow pipeline 202 is connected to the hot water pipeline 201 and the water inlet 214. The backflow pipeline 202 is connected to the hot water pipeline 201 at a position downstream of the water pump 30. The flow control device is used to adjust the water flow of the backflow pipeline 202.

[0087] Specifically, during the water pumping process, the air pressure in the heating cavity 21a inside the tank body 21 tends to decrease. In the environment with low air pressure, the gas is more likely to expand and flow, which makes the gas in the pipeline more likely to be sucked into the water pump 30, thereby increasing the risk of air blockage of the water pump 30 and affecting the water pumping efficiency and stability of the water pump 30. The backflow pipeline 202 can alleviate the decrease of the air pressure in the tank body 21 to a certain extent. In addition, the flow control device is arranged to adjust the water flow of the backflow pipeline 202. Through the flow control device, the water flow of the backflow pipeline 202 can be ensured to be maintained at an appropriate level, which can effectively balance the pressure and avoid too small water flow at the water outlet end of the hot water pipeline 201, so as to ensure the sufficient supply of hot water while ensuring the stability of the system. For example, when the hot water system is started or the load suddenly increases, the flow control device is controlled to make the backflow pipeline 202 provide a larger flow to balance the pressure of the system. When the hot water system is stably running and the load changes slightly, the flow control device is controlled to make the backflow pipeline 202 maintain the balance state of the hot water system with a smaller flow.

[0088] Optionally, please refer to Figure 8The flow control member is a flow limiting plug 2031. The flow limiting plug 2031 can include a diaphragm with a plurality of water passing holes. The water passing holes have a relatively small diameter. When the negative pressure in the pipeline is relatively large, the water in the hot water pipeline 201 can flow to the water inlet 214 through the water passing holes of the flow limiting plug 2031. When the negative pressure in the pipeline is stable, the flow limiting plug 2031 can prevent most of the hot water in the hot water pipeline from flowing to the water inlet 214. The flow limiting plug 2031 includes a diaphragm with a certain elasticity and sealing property. The diaphragm is provided with a plurality of water passing holes with a relatively small diameter to limit the flow speed of the fluid. When the negative pressure in the pipeline is relatively large, the diaphragm is deformed under the suction force of the negative pressure. Because the water passing holes have a relatively small diameter, the deformation of the diaphragm causes part of the water in the hot water pipeline 201 to flow to the water inlet 214 through the small holes, thereby relieving the negative pressure state of the pipeline to a certain extent. It can be understood that, because the pipeline of the hot water pipeline 201 is connected to the tank 21, the drop in the air pressure of the heating cavity 21a in the tank 21 is also relieved to a certain extent. When the negative pressure in the pipeline is gradually stable, the diaphragm gradually returns to the original state under the joint action of its own elasticity and the pressure in the pipeline. At this time, the water passing holes on the diaphragm are partially or completely closed, thereby preventing most of the hot water in the hot water pipeline from continuing to flow to the water inlet 214, and ensuring the water flow at the outlet of the hot water pipeline 201.

[0089] Optionally, please refer to Figure 9 The flow control member is a reversing valve 2032. The reversing valve 2032 is arranged at the connection between the water inlet end of the return pipeline 202 and the hot water pipeline 201, and selectively guides the water in the tank 21 to flow to the return pipeline 202 or the water outlet end of the hot water pipeline 201. The reversing valve 2032 can flexibly adjust the flow direction of the water according to the pressure in the pipeline. When the system pressure is balanced, the water flow can be guided more to the hot water pipeline 201 to meet the hot water demand of the user; when the system pressure is too high or needs to be balanced, part of the water flow can be guided to the return pipeline 202 to maintain the stability of the system. Through the regulation and control of the reversing valve 2032, the pressure between the hot water pipeline 201 and the return pipeline 202 can be effectively balanced.

[0090] Optionally, please refer to Figure 10 The flow control member includes a first electromagnetic valve 2033 and a second electromagnetic valve 2034. The first electromagnetic valve 2033 selectively connects the water outlet end of the water pump assembly and the water inlet; the second electromagnetic valve 2034 selectively connects the water outlet end of the water pump assembly and the water outlet end of the hot water pipeline 201. Through the independent control of the two electromagnetic valves, the hot water system can flexibly switch the water flow path. When the pressure in the pipeline is relatively stable, the second electromagnetic valve 2034 can be opened; when the negative pressure in the pipeline is relatively large, the first electromagnetic valve 2033 can be opened to make the water flow back to the water inlet.

[0091] Please refer to Figures 8 to 10 In some embodiments, the hot water system further comprises a water supplement pipeline 204 and an exhaust pipeline 205. The water supplement pipeline 204 is connected to the tank 21 and communicates with the water inlet 214 at the top of the tank 21. The exhaust pipeline 205 communicates between the inside and outside of the tank 21 and is connected to the exhaust port 215 at the top of the tank 21. The water supplement pipeline 204 can supplement water in the tank 21 in time, avoiding the decrease of heating efficiency or damage of the heating element 22 due to insufficient water. The exhaust pipeline 205 can discharge the gas in the tank 21, including water vapor, air, etc., to ensure the stable air pressure of the heating cavity 21a. It can be understood that during the heating process, a large amount of water vapor will be generated due to the increase of water temperature. If not discharged in time, the pressure in the tank will increase, affecting the heating efficiency and equipment safety.

[0092] Please refer to Figure 11 In some embodiments, the backflow pipeline 202 communicates with the hot water pipeline 201 and the water supplement pipeline 204, that is, the water outlet end of the backflow pipeline 202 is connected to the water supplement pipeline 204. In this way, multiple holes are not needed to be opened on the tank 21 to connect the water supplement pipeline and the backwater pipeline, thereby simplifying the structure of the tank 21, reducing the manufacturing cost, and reducing the sealing and leakage problems that may be caused by the opening of holes. In addition, the backflow pipeline 202 and the water supplement pipeline 204 can share part of the pipeline, that is, the original structure can be used by adding a backflow pipe to communicate the hot water outlet pipe and the water supplement pipe.

[0093] In order to further improve the water pumping efficiency of the water pump assembly, please refer to Figure 13 In some embodiments, the water outlet 216 is arranged at the lower part of the tank body 211, and the water pump assembly comprises a water pump 30 and a water inlet pipe 32. The water pump 30 communicates with the water outlet 216 through the water inlet pipe 32. The water inlet pipe 32 is connected to the water outlet 216, and the water pump 30 communicates with the water outlet 216 through the water inlet pipe 32. The water inlet pipe 32 is connected to the water outlet 216, and the inner diameter of the water inlet pipe 32 increases in the direction from the water pump 30 to the water outlet 216, forming an expanding structure.

[0094] Specifically, the water outlet 216 is arranged at the lower portion of the tank body 211, the water inlet pipe 32 is communicated with the water outlet 216, and the bubbles in the water have a vertical upward movement trend, so that the possibility of sucking in the bubbles during the operation of the water pump 30 can be reduced, the risk of air blockage can be reduced, and the inner diameter of the water inlet pipe 32 increases in the direction close to the water outlet 216 to form a flared structure. Thus, the bubbles generated during the heating process can more easily use their vertical upward movement trend to move along the water inlet pipe 32 and be discharged from the water inlet pipe 32 through the water outlet 216, so that the possibility of the bubbles accumulating in the pipe can be effectively reduced, and the risk of the water pump 30 being disabled due to air blockage (i.e., air blockage) can be significantly reduced. It can be understood that air blockage not only reduces the pumping efficiency, but also can cause damage to the water pump 30, such as overheating, accelerated wear, and the like. The inner diameter of the water inlet pipe 32 is designed in the present application, and such a structure not only does not increase additional complexity in the actual production and installation process, but also has a lower processing cost, while effectively reducing the risk of air blockage.

[0095] It can be understood that the buoyancy of the bubbles is vertically upward during the vertical upward movement of the bubbles, and when the bubbles are blocked by the upper wall surface of the water inlet pipe 32, the upper wall surface of the water inlet pipe 32 is inclined upward and connected to the water outlet 216 due to the flared structure of the water inlet pipe 32. Therefore, during the force analysis, the vertically upward buoyancy of the bubbles will generate a component inclined to the water outlet 216, so that the bubbles can more easily move along the water inlet pipe 32 and be discharged through the water outlet 216, and are not easy to enter the water pump 30.

[0096] In some embodiments, the water inlet pipe includes a first pipe section, an arc-shaped transition section, and a second pipe section. One end of the first pipe section is connected to the water outlet, and the inner diameter thereof is arranged to be reduced from top to bottom. The arc-shaped transition section is connected to one end of the first pipe section away from the water outlet. The second pipe section is connected to one end of the arc-shaped transition section away from the first pipe section, and the other end of the second pipe section is communicated with the water pump. The center line of the second pipe section is arranged at an angle with the center line of the first pipe section, and the water pump has a water pump inlet connected with the second pipe section, and the direction of the water pump inlet is horizontal or inclined upward.

[0097] Further, the inner diameter of the arc-shaped transition section is arranged to be reduced in the direction close to the water outlet from the water pump.

[0098] Optionally, the first pipe section extends in the vertical direction, and the center line of the first pipe section is arranged perpendicularly to the center line of the second pipe section.

[0099] In yet some embodiments, please refer to Figure 14, the water pump assembly can only include the water suction pump 30, the water suction pump 30 is connected with the tank body 21, and the water pump inlet 351 is in direct communication with the water outlet 216; the hot water system further includes a second sealing ring 33, the second sealing ring 33 is clamped between the water suction pump 30 and the tank body 21, and is annularly arranged outside the water pump inlet 351 and the water outlet 216, thereby playing a good sealing effect and improving the sealing between the water suction pump 30 and the tank body 21. Specifically, the water suction pump 30 of the present application is directly connected with the tank body 21, and the water pump inlet 351 is in direct communication with the water outlet 216, which reduces the pipeline connection points and reduces the risk of leakage, and can reduce the bubbles in the pipeline and reduce the risk of air blockage of the water suction pump 30.

[0100] Further, the water suction pump includes a water inlet portion having the water pump inlet, the water inlet portion extending outwardly from the main body of the water suction pump, the water inlet portion extending into the interior of the second pipe segment, and the water pump inlet on the water inlet portion being located at a corner between the arc-shaped transition segment and the second pipe segment.

[0101] Further, an inner diameter of the water inlet portion is arranged to be reduced in a direction in which the water outlet is close to the water suction pump.

[0102] Optionally, the tank bottom cover is provided with the water outlet, the hot tank assembly further includes a connecting water pipe, the connecting water pipe being connected to the tank bottom cover and communicating with the water outlet, the connecting water pipe extending in a vertical direction, and a water outlet end of the connecting water pipe being connected to the first pipe segment.

[0103] Further, the connecting water pipe extends into the tank body, and in a height direction, a water inlet end of the connecting water pipe is higher than the tank bottom cover.

[0104] Please refer to Figure 14 In some embodiments, the water suction pump 30 includes a pump shell 30A1 provided with the water pump inlet 351, and an outer side wall of the pump shell 30A1 is provided with a first annular limiting portion surrounding the water pump inlet 351; and the second sealing ring 33 is limited in the first annular limiting portion. The first annular limiting portion can relatively fix the second sealing ring 33, thereby improving the sealing between the water suction pump 30 and the tank body 21.

[0105] Optionally, the first annular limiting portion is a first annular groove 361, and the second sealing ring 33 is installed in the first annular groove 361 and partially protrudes outward to abut against the tank body 21. The first annular groove 361 can be formed by inwardly recessing the outer wall surface of the pump shell 30A1, or two annular protruding portions can be protrudingly arranged on the outer wall surface of the pump shell 30A1, and the first annular groove 361 is formed between the two annular protruding portions. In other embodiments, the first annular limiting portion can include only one annular protruding portion, the second sealing ring 33 is sleeved on the outside of the annular protruding portion by elastic tension, or the second sealing ring 33 is provided with an annular groove, and the annular protruding portion is embedded in the annular groove, so that the positioning of the second sealing ring 33 can also be achieved. Herein, the specific connection form of the first annular limiting portion and the second sealing ring 33 is not limited in the present application.

[0106] Please refer to Figures 12 to 14 In some embodiments, the tank body 21 is provided with a first connecting hole (not shown in the figure), and the pump shell 30A1 is provided with a second connecting hole 30A2; the first connecting hole and the second connecting hole 30A2 are sequentially penetrated by a fastener to relatively fix the tank body 21 and the pump shell 30A1. Further, the present application also includes a third sealing ring 34, which is clamped between the tank body 21 and the pump shell 30A1 and is annularly arranged around the first connecting hole and the second connecting hole 30A2. In this example, the tank body 21 and the pump shell 30A1 are connected by the fastener, which can improve the stability of the connection between the water suction pump 30 and the tank body 21. The second connecting hole 30A2 can be in the form of a threaded hole, and the fastener can be in the form of a screw 28, which extends outward from the inside of the tank body 21 through the first connecting hole, is then penetrated and fixed in the second connecting hole 30A2, and is threadedly connected with the second connecting hole 30A2. This connection mode has high stability and simple installation mode. Of course, in other embodiments, the tank body 21 and the pump shell 30A1 can also be connected by buckling.

[0107] Please refer to Figure 14 In some embodiments, the outer side wall of the pump shell 30A1 is provided with a second annular limiting portion around the side of the second connecting hole 30A2, and the third sealing ring 34 is limited in the second annular limiting portion. The second annular limiting portion can relatively fix the third sealing ring 34 to improve the sealing between the water suction pump 30 and the tank body 21. In some embodiments, the second annular limiting portion is a second annular groove 362, and the third sealing ring 34 is installed in the second annular groove 362 and partially protrudes outward to abut against the tank body 21. The second annular limiting portion and the connection form of the second annular limiting portion and the third sealing ring 34 can be arranged by referring to the first annular limiting portion and the connection form of the first annular limiting portion and the second sealing ring 33 described above.

[0108] In some embodiments, the outer diameter of the water pump inlet 351 is smaller than the outer diameter of the water outlet 216, the top of the pump shell 30A1 is provided with at least two oppositely arranged positioning portions 37, the positioning portions 37 are located outside the water pump inlet 351, and the outer wall surface of the positioning portions 37 abuts against the inner wall of the water outlet 216, so as to ensure that the pump shell 30A1 and the tank body 21 are connected in the correct position, thereby improving the stability of the communication between the water pump inlet 351 and the water outlet 216.

[0109] Further, please refer to Figure 14 The outer wall surface of the positioning portion 37 is formed with a guide surface 371 and a limiting surface 372 connected in sequence from top to bottom, the guide surface 371 is arranged to extend to the limiting surface 372, and the limiting surface 372 abuts against the inner wall of the water outlet 216. The guide surface 371 can guide the positioning portion 37 to extend into the water outlet 216 during installation, and when installed in place, the limiting surface 372 abuts against the inner wall surface of the water outlet 216.

[0110] Please refer to 5, further, in some embodiments, the water purification and heating all-in-one machine 1 further comprises a controller, a first temperature sensor and a second temperature sensor, and a faucet 2, the filter system 50 comprises a purified water pipe communicating with the outlet of the filter element, and the purified water pipe and the water outlet pipe are both connected to the faucet 2, wherein the first temperature sensor is used to detect the temperature in the heating cavity 21a, the second temperature sensor is used to detect the temperature in the purified water pipeline, and the controller is used to receive the detection values of the first temperature sensor and the second temperature sensor, and control the operating power of the water pump 30 and the booster pump 53, so as to form water at a set temperature value at the faucet 2. Through the cooperative work of the first temperature sensor and the second temperature sensor, the controller can accurately adjust the water temperature in the heating cavity 21a and the mixing ratio of hot and cold water, ensure the stability and accuracy of the water temperature at the faucet 2, avoid the problem of excessively high or low water temperature, and improve the safety and comfort of use. In addition, the controller dynamically adjusts the operating power of the water pump 30 and the booster pump 5, can optimize energy consumption according to the actual water demand, reduces unnecessary energy waste, and thus improves the energy efficiency and economy of the system.

[0111] In the drawings of the embodiments, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present application. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0112] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hot water system, characterised in that, The application relates to a water heating device. The water heating device comprises: a heating tank assembly, which comprises a tank body and a heating element, the heating element being installed on the tank body, the tank body having a water outlet and a water inlet; a hot water pipeline, which is connected to the water outlet; a water supplement pipeline, which is connected to the water inlet; a water pump assembly, which is arranged on the hot water pipeline and used for pumping water in the tank body to a water outlet end of the hot water pipeline through the water outlet; a backflow pipeline, which is connected to the hot water pipeline and the water supplement pipeline, the backflow pipeline being connected to the hot water pipeline at a position downstream of the water pump assembly; and a flow control element, which is used for adjusting the water flow of the backflow pipeline.

2. The hot water system of claim 1, wherein, The flow control element is a flow limiting plug.

3. The hot water system of claim 1, wherein, The flow control element is a reversing valve, which is arranged at a connection position between a water inlet end of the backflow pipeline and the hot water pipeline and is used for selectively guiding the water in the tank body to the backflow pipeline or the water outlet end of the hot water pipeline.

4. The hot water system of claim 1, wherein The flow control element comprises: a first electromagnetic valve, which is selectively connected to the water outlet end of the water pump assembly and the water inlet; and a second electromagnetic valve, which is selectively connected to the water outlet end of the water pump assembly and the water outlet end of the hot water pipeline.

5. The hot water system of claim 1, wherein, The water heating device further comprises: an exhaust pipeline, which is connected to the inside and outside of the tank body and is arranged on the top of the tank body.

6. A hot water system as claimed in any one of claims 1 to 5 wherein, The water pump assembly comprises a water pump and a water inlet pipeline, the water pump being connected to the water outlet through the water inlet pipeline; wherein the water inlet pipeline is connected to the water outlet, at least a part of the water inlet pipeline close to the water outlet extends upwards, and the inner diameter of the water inlet pipeline decreases from top to bottom.

7. The hot water system of claim 6, wherein The water inlet pipeline comprises: a first pipeline section, one end of which is connected to the water outlet and the inner diameter of which decreases from top to bottom; an arc-shaped transition section, which is connected to one end of the first pipeline section away from the water outlet; and a second pipeline section, which is connected to one end of the arc-shaped transition section away from the first pipeline section, the other end of the second pipeline section being connected to the water pump; wherein the center line of the second pipeline section is arranged at an angle with the center line of the first pipeline section, and the water pump has a water pump inlet connected to the second pipeline section, the water pump inlet being horizontally or obliquely upwardly directed.

8. The hot water system of claim 7, wherein, The inner diameter of the arc-shaped transition section decreases from top to bottom in the direction close to the water outlet.

9. The hot water system of claim 7, wherein, The water pump comprises: a water inlet part, which has the water pump inlet, the water inlet part extending outwards from the main body of the water pump, the water inlet part extending into the inside of the second pipeline section, and the water pump inlet on the water inlet part being located at the corner between the arc-shaped transition section and the second pipeline section.

10. The hot water system of claim 9, wherein, The inner diameter of the water inlet part decreases from top to bottom in the direction close to the water outlet.

11. The hot water system of claim 7, wherein, The first pipeline section extends in the vertical direction, and the center line of the first pipeline section is arranged perpendicularly to the center line of the second pipeline section.

12. A hot water system as claimed in any one of claims 7 to 11, wherein, The tank body comprises a tank bottom cover, the tank bottom cover being provided with the water outlet, and the heating tank assembly further comprises: a connecting water pipeline, which is connected to the tank bottom cover and connected to the water outlet, the connecting water pipeline extending in the vertical direction, and the water outlet end of the connecting water pipeline being connected to the first pipeline section.

13. The hot water system of claim 12, wherein, The connecting water pipe extends into the tank body, and in the height direction, the water inlet end of the connecting water pipe is higher than the tank bottom cover.

14. A heat recovery all-in-one machine, characterized by, Comprise: a housing assembly; the hot water system as claimed in any one of claims 1 to 13, installed in the housing assembly; and a filtration system installed in the housing assembly, the filtration system being in communication with the hot water system.

15. The instant hot water integrated machine as claimed in claim 14, wherein, The heat purification integrated machine further comprises a controller, a first temperature sensor, a second temperature sensor, and a faucet, the filtration system comprises a booster pump, a filter element, and a purified water pipe connected to the outlet of the filter element, the purified water pipe and the water outlet pipe in communication with the water outlet are both connected to the faucet, and the hot water system has a heating cavity; wherein the first temperature sensor is used to detect the temperature in the heating cavity, the second temperature sensor is used to detect the temperature of the purified water in the purified water pipe, the controller is used to receive the detection values of the first temperature sensor and the second temperature sensor, and control the operating power of the booster pump to form water at a set temperature value at the faucet.

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