A water heater constant temperature chamber with filtering function and filter element replacement and leak-proof structure

Abstract

The present invention discloses a thermostatic chamber of a water heater with a filtering function and a filter element replacement leak-proof structure, comprising a thermostatic chamber shell, a water inlet joint is provided on the top surface thereof, a water outlet joint is provided on the bottom surface thereof, and a mixing chamber is provided in the thermostatic chamber shell; a filter module is detachably installed in the mixing chamber through a water channel module; a filter element replacement leak-proof structure is provided on the water channel module and the filter module, and a push portion provided on the filter module pushes the valve cores of the water inlet valve and the water outlet valve on the water channel module to move up and down; the water inlet nozzle and the water outlet nozzle of the filter module are connected to the water inlet joint and the mixing chamber through the water inlet valve and the water outlet valve, respectively. The present invention can filter the water entering the thermostatic chamber, remove the impurities, residual chlorine, heavy metals and miscellaneous bacteria in the water in the thermostatic chamber, and improve the water quality; a filter element replacement leak-proof structure is provided on the water channel module, and the water flow in the mixing chamber and the water inlet pipe will not leak out when the filter element is replaced, thereby improving the convenience of filter element replacement and reducing the difficulty of filter element replacement.

Description

Technical Field

[0001] The invention relates to the technical field of thermostatic chambers for water heaters, and in particular to a thermostatic chamber for water heaters with a filtering function and a filter element replacement and leakage prevention structure. Background Art

[0002] As people's living standards continue to improve, gas water heaters are widely welcomed by people for their convenience, energy saving and environmental protection. However, in the actual use of gas water heaters, users often find that they need to drain a lot of cold water before using hot water, and when they turn off the shower and then turn it on, the water will be hot and cold at the same time. This is because when the gas water heater turns off the shower during use, the cold water is turned off first and then the gas is turned off, resulting in a higher water temperature in this section. When the gas water heater is turned on again, the cold water is turned on first and then the gas, resulting in a section of cold water. This will cause the gas water heater to be hot first and then cold when it is turned on again during the bathing process. The overly hot hot water can easily cause burns, and the overly cold water may cause colds, which seriously affects the user experience.

[0003] To this end, Chinese invention patent CN107477840A provides a gas water heater with a microcirculation water circuit, including a heat exchanger and a constant temperature chamber, and a controller arranged in the water heater, as well as a water inlet pipe connected to the heat exchanger and a water outlet pipe connected to the constant temperature chamber, the constant temperature chamber is connected downstream of the water flow direction of the heat exchanger, a microcirculation bypass channel is provided between the constant temperature chamber and the water inlet pipe, a one-way valve and a circulation valve are provided on the microcirculation bypass channel, a control switch of the water pump is electrically connected to the controller, a temperature sensor is provided on the constant temperature chamber, and the temperature sensor is connected to the controller. The invention improves the neutralization effect of the constant temperature chamber by adding a microcirculation bypass channel, thereby improving the bathing comfort of the user.

[0004] However, the domestic water in modern society is usually tap water that has been treated by a water treatment plant according to certain standards. There may be a certain amount of chlorine left in the tap water, which cannot meet people's requirements for water quality. At the same time, if the water quality is poor, a large amount of dirt and impurities will remain in the constant temperature chamber, and even scale will form on the inner wall of the constant temperature chamber, affecting the neutralization effect of the constant temperature chamber, and affecting the service life and use effect of the constant temperature chamber.

[0005] In view of this, it is urgent to improve the structure of the existing thermostatic chamber of the water heater to improve the water quality of the outlet water, improve the neutralization effect of the thermostatic chamber, and improve the user experience. Summary of the invention

[0006] The technical problem to be solved by the present invention is that the water quality of the water output from the thermostatic chamber of the existing water heater is poor, the neutralization effect is ineffective, and the use needs of users are not met.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is to provide a water heater thermostatic chamber with a filtering function and a filter element replacement and leakage prevention structure, comprising:

[0008] A thermostatic chamber shell, with a water inlet joint on the top surface and a water outlet joint on the bottom surface, and a mixing chamber is provided in the thermostatic chamber shell;

[0009] A filter module is detachably mounted in the constant temperature chamber housing through a water channel module;

[0010] The filter module and the water channel module are provided with a filter element replacement anti-leakage structure, including an inlet valve and an outlet valve arranged on the water channel module and a push portion arranged on the filter module, the inlet valve is connected to the water inlet joint, and the push portion pushes the valve cores of the inlet valve and the outlet valve to move up and down; the water inlet nozzle and the water outlet nozzle of the filter module are connected to the water inlet joint and the mixing chamber through the inlet valve and the outlet valve respectively.

[0011] In the above technical solution, the constant temperature chamber shell includes:

[0012] The outer shell is in the shape of a cylinder with openings at both ends, and an upper cover and a lower cover are respectively provided on the top and bottom surfaces of the outer shell, the upper cover is provided with the water inlet joint, and the lower cover is provided with the water outlet joint and the inner cylinder mounting port;

[0013] The inner cylinder is arranged in the outer shell through the inner cylinder installation port, the outer wall of the inner cylinder is arranged opposite to the inner wall of the outer shell to form the mixing chamber; the height of the inner cylinder is smaller than the height of the outer shell; the filter module is arranged in the inner cylinder.

[0014] The above technical solution also includes:

[0015] The sterilization module comprises a sterilization chamber and a sterilization component arranged on the sterilization chamber. The sterilization chamber is arranged in the constant temperature chamber shell and is communicated with the mixing chamber. The sterilization chamber is communicated with the water outlet joint.

[0016] In the above technical solution, a sterilization tube is provided in the sterilization chamber, the upper part of the sterilization tube is communicated with the mixing chamber, and the lower end of the sterilization tube is communicated with the water outlet joint.

[0017] In the above technical solution, the sterilization component includes:

[0018] A germicidal lamp mounting seat is detachably arranged on the upper cover;

[0019] The germicidal lamp is installed above the sterilization tube through the germicidal lamp mounting seat.

[0020] In the above technical solution, the waterway module includes:

[0021] A mounting seat is arranged at the upper end of the inner cylinder, and its outer circumferential surface is matched with the inner wall of the inner cylinder; a one-way valve mounting seat is arranged on the mounting seat;

[0022] The water inlet valve and the water outlet valve are both one-way valves, which are respectively arranged in the one-way valve mounting seats. The water inlet valve is connected to the water inlet joint through a water inlet pipe.

[0023] In the above technical solution, the one-way valve comprises:

[0024] The valve body is in the shape of a cylinder with open ends, and a sealing ring is provided on its outer circumferential surface, which is adapted to the inner wall of the one-way valve mounting seat. The inner cavity of the valve body has a step hole that passes through from top to bottom, and the step surface of the step hole constitutes a sealing surface; a plurality of connecting arms are provided on the top surface of the valve body, and the gap between two adjacent connecting arms is used for water flow to pass through; guide holes are provided at the nodes of the plurality of connecting arms;

[0025] The valve core is arranged in the valve body, the lower end surface of which matches the sealing surface, and the top surface of which is provided with a valve stem, which is inserted in the guide hole and can slide up and down.

[0026] In the above technical solution, the filtering module includes:

[0027] The filter element housing has a filter cavity inside, and the filter cavity is filled with filter material; a vertically arranged water inlet and outlet baffle is arranged on the top surface of the inner wall of the filter cavity, and the lower end of the water inlet and outlet baffle is arranged opposite to the filter cavity to form a water flow channel;

[0028] The water inlet nozzle and the water outlet nozzle are arranged on the top surface of the filter element housing and are respectively arranged on both sides of the water inlet and outlet baffles. The water inlet nozzle and the water outlet nozzle are cylindrical openings, and the push portion is a top plate arranged in the cylindrical opening. The top plates are cross-arranged, and the gaps between adjacent top plates are used for water to flow through.

[0029] In the above technical solution, the top plate is arranged to pass through the cylindrical opening, and the outer circumferential surface of the top plate is matched with the inner wall of the step hole.

[0030] In the above technical solution, the upper cover is provided with a sealing assembly, including:

[0031] A joint pipe is installed above the sterilization pipe, the upper part of the joint pipe passes through the upper cover, and the sterilization lamp mounting seat is installed on the joint pipe;

[0032] A transparent sealing plate is installed on the top surface of the joint pipe, and the germicidal lamp is arranged above the sealing plate.

[0033] Compared with the prior art, the thermostatic chamber of a water heater with a filtering function and a filter element replacement leak-proof structure provided by the present invention comprises a thermostatic chamber shell, a filter module and a water path module. A mixing chamber is provided in the thermostatic chamber shell, and the filter module is connected with the mixing chamber, so that the water entering the thermostatic chamber can be filtered, impurities in the water in the thermostatic chamber can be eliminated, and the water quality can be improved. A filter element replacement leak-proof structure is provided on the water path module and the filter module, including an inlet valve and an outlet valve provided on the water path module and a push portion on the filter module, the push portion pushes the valve cores of the inlet valve and the outlet valve to move up and down, and when the filter module is replaced, the inlet valve and the outlet valve separate the water in the mixing chamber and the water inlet pipe from the filter chamber, so that the water flow in the mixing chamber and the water inlet pipe will not leak out, thereby improving the convenience of filter element replacement and reducing the difficulty of filter element replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a front view of the thermostatic chamber of the water heater with filtering function and filter element replacement anti-leakage structure in the present invention;

[0035] Figure 2 It is a structural schematic diagram of a water heater thermostatic chamber with a filtering function and a filter element replacement and leak-proof structure in the present invention;

[0036] Figure 3 It is a cross-sectional schematic diagram of a thermostatic chamber of a water heater having a filtering function and a filter element replacement and leak-proof structure in the present invention;

[0037] Figure 4 It is a structural schematic diagram of the filtering module in the present invention;

[0038] Figure 5 is a top view of the filter module in the present invention;

[0039] Figure 6 A top view of the one-way valve of the present invention;

[0040] Figure 7 It is a cross-sectional schematic diagram of the one-way valve in the present invention.

[0041] in, Figures 1 to 7 The corresponding relationship between the reference numerals and the component names is as follows:

[0042] Constant temperature chamber shell 1, filter module 2, sterilization module 3, outer shell 11, inner tube 12, upper cover 13, lower cover 14, water inlet joint 15, water outlet joint 16, inner tube mounting port 17, mixing chamber 10, water channel module 4, filter element shell 21, water inlet nozzle 22, water outlet nozzle 23, filter chamber 20, water inlet and outlet baffle 24, water flow channel 25, top plate 26, mounting seat 40, water inlet valve 41, water outlet valve 42, water inlet pipe 43, valve body 44, valve core 45, step hole 441, connecting arm 442, guide hole 443, valve stem 451, sterilization chamber 30, sterilization tube 31, sterilization lamp mounting seat 32, sterilization lamp 33, joint pipe 34, and sealing plate 35. DETAILED DESCRIPTION

[0043] The present invention provides a water heater thermostatic chamber with a filtering function and a filter element replacement leak-proof structure, which can filter the water in the thermostatic chamber and improve the water quality; a filter element replacement leak-proof structure is arranged on the waterway module and the filtering module, and the water flow in the mixing chamber and the water inlet pipe will not leak out when the filter element is replaced, thereby improving the convenience of filter element replacement and reducing the difficulty of filter element replacement. The present invention is described in detail below in conjunction with the drawings and specific embodiments of the specification.

[0044] like Figure 1 and Figure 2 as well as Figure 3 As shown, the present invention provides a water heater thermostatic chamber with a filtering function and a filter element replacement and leakage-proof structure, comprising a thermostatic chamber housing 1, a filtering module 2 and a sterilization module 3.

[0045] The thermostatic chamber shell 1 includes an outer shell 11 and an inner cylinder 12. The outer shell 11 is in the shape of a cylinder with openings at both ends. An upper cover 13 and a lower cover 14 are respectively provided on the top and bottom surfaces of the outer shell 11. The upper cover 13 is provided with a water inlet joint 15, and the lower cover 14 is provided with a water outlet joint 16 and an inner cylinder mounting port 17.

[0046] The inner cylinder 12 with openings at both ends is arranged in the outer shell 11. The inner cylinder 12 is installed on the inner cylinder installation port 17. The outer wall of the inner cylinder 12 and the inner wall of the outer shell 11 are arranged opposite to each other to form a mixing chamber 10. The height of the inner cylinder 12 is smaller than that of the outer shell 11.

[0047] like Figure 4 and Figure 5As shown, the filter module 2 is detachably mounted in the inner cylinder 12 through the waterway module 4. The filter module 2 includes a filter cartridge housing 21 and a water inlet 22 and a water outlet 23 arranged on the top surface of the filter cartridge housing 21. A filter chamber 20 is arranged in the filter cartridge housing 21, and filter materials such as KDF and activated carbon can be placed in the filter chamber 20 for filtering water. A water inlet and outlet baffle 24 is also arranged in the filter chamber 20. The water inlet and outlet baffle 24 is arranged perpendicular to the top surface of the filter chamber 20, and its lower end is arranged opposite to the filter chamber 20 to form a water flow channel 25. The water inlet 22 and the water outlet 23 are respectively arranged on both sides of the water inlet and outlet baffle 24. The water inlet 22 and the water outlet 23 are both cylindrical openings, and a cross-arranged top plate 26 is arranged in the cylindrical opening. The gap between the two adjacent top plates 26 is used for water flow to pass through, and the upper end of the top plate 26 passes through the water inlet 22 and the water outlet 23.

[0048] The water channel module 4 includes a mounting seat 40 and an inlet valve 41 and an outlet valve 42 arranged on the mounting seat 40. The inlet valve 41 and the outlet valve 42 are both one-way valves. A one-way valve mounting portion 43 is provided on the mounting seat 40. The inlet valve 42 is connected to the water inlet connector 15 through an inlet pipe 43.

[0049] like Figure 6 and Figure 7 As shown, the one-way valve includes a valve body 44 and a valve core 45. The valve body 44 is in the shape of a cylinder with both ends open. A sealing ring is provided on the outer circumferential surface of the valve body 44, which is matched with the inner wall of the one-way valve mounting portion 43. The inner cavity of the valve body 44 has a stepped hole 441 that passes through from top to bottom, and the stepped surface of the stepped hole 441 constitutes a sealing surface. The inner wall of the stepped hole 441 matches the outer circumferential surface of the top plate 26. A plurality of connecting arms 442 are provided on the top surface of the valve body 44, and the gap between two adjacent connecting arms 442 is used for water flow to pass through. A guide hole 443 is provided at the node of the plurality of connecting arms 442.

[0050] The valve core 45 is arranged in the valve body 44, the lower end surface of the valve core 45 matches the sealing surface, and a valve stem 451 is arranged on the top surface of the valve core 45. The valve stem 451 is inserted into the guide hole 443 and can slide up and down.

[0051] The sterilization module 3 includes a sterilization chamber 30 and a sterilization assembly arranged on the sterilization chamber 30. A sterilization tube 31 is arranged in the sterilization chamber 30. The upper part of the sterilization tube 31 is connected to the mixing chamber 10, and the lower end of the sterilization tube 31 is connected to the water outlet connector 16. The sterilization assembly includes a sterilization lamp mounting seat 32 and a sterilization lamp 33. The sterilization lamp mounting seat 32 is detachably arranged on the upper cover 13. The sterilization lamp 33 is installed above the sterilization tube 31 through the sterilization lamp mounting seat 33, and is used to sterilize the water entering the sterilization tube 31 with ultraviolet rays.

[0052] A sealing assembly is also provided above the sterilization tube 31, including a joint tube 34 and a transparent sealing plate 35. The joint tube 34 is installed above the sterilization tube 31, the upper part of the joint tube 34 passes through the upper cover 13, and the germicidal lamp mounting seat 32 is installed on the joint tube 34. The sealing plate 35 is installed on the top surface of the joint tube 34, and the germicidal lamp 33 is arranged above the sealing plate 35.

[0053] The working process of the present invention is as follows:

[0054] Cold and hot water premixing, filtration and sterilization process:

[0055] The water in the water heater enters the thermostatic chamber housing 1 through the water inlet joint 15, and enters the filter element housing 21 along the water inlet pipe 43 and the water inlet nozzle 22 for filtering and primary premixing of hot and cold water. The water flow in the filter element housing 21 is filtered on one side of the water inlet and outlet baffle 24 in the filter chamber 20, and then enters the other side along the water flow channel 25 between the water inlet and outlet baffle 24 and the filter element housing 21 for secondary premixing. The mixed filtered water enters the sterilization tube 31 through the water inlet at the upper part of the sterilization tube 31. The sterilization lamp 33 arranged above the sterilization tube 31 sterilizes the secondary mixed water, and realizes tertiary premixing in the sterilization tube 31. Finally, the water flows out of the thermostatic chamber housing 1 after passing through the water outlet joint 16.

[0056] Filter module replacement process:

[0057] The water inlet valve 41, the water outlet valve 42 and the top plate 26 form a filter element replacement leak-proof structure. When the filter module 2 needs to be replaced, the filter element housing 21 is pulled out of the inner cylinder 12 through the filter element handle, and the top plate 26 on the top surface of the filter element housing 21 is separated from the step hole 441. The valve cores 45 of the water inlet valve 41 and the water outlet valve 42 slide downward under the impact of the water flow and the action of gravity to maintain a seal with the sealing surface, and the water flow cannot pass through; when the new filter module 2 is installed in the inner cylinder 12, the top plate 26 on the filter element housing 21 pushes the valve core 45, so that the valve core 45 leaves the sealing surface, and the water flows into the filter module 2 from the gap between the connecting arms 442 and the gap between the top plates 26, and no large-scale water leakage will be caused during the replacement process, thereby improving the replacement efficiency of the filter module.

[0058] The thermostatic chamber of a water heater with a filtering function and a filter element replacement and leak-proof structure of the present invention comprises a thermostatic chamber shell, a filtering module and a sterilizing module. A mixing chamber is arranged in the thermostatic chamber shell, the filtering module is connected with the mixing chamber, and the sterilizing module is connected with the mixing chamber. Therefore, sterilization and filtering of water entering the thermostatic chamber can be realized, and residual chlorine, heavy metals and miscellaneous bacteria as impurities in the water in the thermostatic chamber can be removed, thereby improving water quality. Meanwhile, the water in the thermostatic chamber is respectively mixed in three stages in the filtering module, the mixing chamber and the sterilizing module, thereby greatly improving the mixing effect of hot and cold water in the thermostatic chamber, making the outlet water of the thermostatic chamber fit the set temperature, reducing the outlet water temperature difference, and improving the comfort of showering.

[0059] The filter module is detachably installed in the constant temperature chamber shell through the water channel module. When the filter element is replaced, the one-way valve closes automatically, and the water in the water inlet pipe and the mixing chamber is completely separated from the filter chamber to prevent water leakage. The structure is simple and easy to operate, which improves the convenience of filter element replacement and reduces the difficulty of filter element replacement, facilitates user maintenance, and improves the user experience.

[0060] In this solution, an inlet and outlet water partition is arranged in the filter element housing to separate the filter chamber into two chambers for filtration and secondary premixing respectively, and ensure that the filtered water flows out from the water outlet nozzle on the top surface of the filter element housing, thereby improving the space utilization rate in the constant temperature chamber and reducing the space occupied by the constant temperature chamber.

[0061] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention.

Claims

1. A water heater thermostatic chamber with filtering function and filter element replacement and leak-proof structure, characterized in that: include: A thermostatic chamber shell, with a water inlet joint on the top surface and a water outlet joint on the bottom surface, and a mixing chamber is provided in the thermostatic chamber shell; A filter module is detachably mounted in the constant temperature chamber housing through a water channel module; The filter module and the water channel module are provided with a filter element replacement anti-leakage structure, including a water inlet valve and a water outlet valve arranged on the water channel module and a push portion arranged on the filter module, the water inlet valve is connected to the water inlet joint, and the push portion pushes the valve cores of the water inlet valve and the water outlet valve to move up and down; the water inlet nozzle and the water outlet nozzle of the filter module are connected to the water inlet joint and the mixing chamber through the water inlet valve and the water outlet valve respectively; The sterilization module comprises a sterilization chamber and a sterilization assembly arranged on the sterilization chamber, wherein the sterilization chamber is arranged in the constant temperature chamber shell and communicated with the mixing chamber, and the sterilization chamber is communicated with the water outlet joint; a sterilization tube is arranged in the sterilization chamber, the upper part of the sterilization tube is communicated with the mixing chamber, and the lower end of the sterilization tube is communicated with the water outlet joint; The constant temperature chamber housing comprises: The outer shell is in the shape of a cylinder with openings at both ends, and an upper cover and a lower cover are respectively provided on the top and bottom surfaces of the outer shell, the upper cover is provided with the water inlet joint, and the lower cover is provided with the water outlet joint and the inner cylinder mounting port; The inner cylinder is arranged in the outer shell through the inner cylinder installation opening, the outer wall of the inner cylinder is arranged opposite to the inner wall of the outer shell to form the mixing chamber; the height of the inner cylinder is smaller than the height of the outer shell; the filter module is arranged in the inner cylinder; The filtering module comprises: The filter element housing has a filter cavity inside, and the filter cavity is filled with filter material; a vertically arranged water inlet and outlet baffle is arranged on the top surface of the inner wall of the filter cavity, and the lower end of the water inlet and outlet baffle is arranged opposite to the filter cavity to form a water flow channel; The water inlet and the water outlet are arranged on the top surface of the filter element housing and are respectively arranged on both sides of the water inlet and outlet baffles.

2. The water heater thermostatic chamber with filtering function and filter element replacement and leak-proof structure according to claim 1, characterized in that: The sterilization component comprises: A germicidal lamp mounting seat is detachably arranged on the upper cover; The germicidal lamp is installed above the sterilization tube through the germicidal lamp mounting seat.

3. The water heater thermostatic chamber with filtering function and filter element replacement and leak-proof structure according to claim 1, characterized in that: The waterway module comprises: A mounting seat is arranged at the upper end of the inner cylinder, and its outer circumferential surface is matched with the inner wall of the inner cylinder; a one-way valve mounting seat is arranged on the mounting seat; The water inlet valve and the water outlet valve are both one-way valves, which are respectively arranged in the one-way valve mounting seats. The water inlet valve is connected to the water inlet joint through a water inlet pipe.

4. The water heater thermostatic chamber with filtering function and filter element replacement and leak-proof structure according to claim 3, characterized in that: The one-way valve comprises: The valve body is in the shape of a cylinder with open ends, and a sealing ring is provided on its outer circumferential surface, which is adapted to the inner wall of the one-way valve mounting seat. The inner cavity of the valve body has a step hole that passes through from top to bottom, and the step surface of the step hole constitutes a sealing surface; a plurality of connecting arms are provided on the top surface of the valve body, and the gap between two adjacent connecting arms is used for water flow to pass through; guide holes are provided at the nodes of the plurality of connecting arms; The valve core is arranged in the valve body, the lower end surface of which matches the sealing surface, and the top surface of which is provided with a valve stem, which is inserted in the guide hole and can slide up and down.

5. The water heater thermostatic chamber with filtering function and filter element replacement and leak-proof structure according to claim 4, characterized in that: The water inlet and the water outlet are cylindrical openings, the push portion is a top plate arranged in the cylindrical opening, the top plates are arranged crosswise, and the gaps between adjacent top plates are used for water to flow through.

6. The water heater thermostatic chamber with filtering function and filter element replacement and leak-proof structure according to claim 5, characterized in that: The top plate is arranged to pass through the cylindrical opening, and the outer circumferential surface of the top plate is matched with the inner wall of the step hole.

7. The water heater thermostatic chamber with filtering function and filter element replacement and leak-proof structure according to claim 2, characterized in that: The upper cover is provided with a sealing assembly, including: A joint pipe is installed above the sterilization pipe, the upper part of the joint pipe passes through the upper cover, and the sterilization lamp mounting seat is installed on the joint pipe; A transparent sealing plate is installed on the top surface of the joint pipe, and the germicidal lamp is arranged above the sealing plate.

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