Filtering safety valve and water heater

Abstract

The utility model discloses a filter safety valve and water heater, filter assembly includes valve shell and filter assembly, the water inlet channel and filter cavity are formed in the valve shell, and filter cavity communicates with the water inlet channel, filter assembly is detachably arranged in filter cavity, and filter assembly includes framework spare and filter screen, and filter screen sets up on the framework spare, and the wall of framework spare is detachably connected with filter cavity, and the dismounting of filter assembly is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of household appliance technology, and in particular relates to a filter safety valve and a water heater. Background Technology

[0002] Water heaters are equipped with a safety valve on their inlet pipe. During heating, when the internal water pressure becomes too high, the safety valve opens to release pressure and drain water, ensuring the safety of the water heater. When water enters the water heater, impurities and particles in the incoming water can enter the safety valve, causing it to not seal properly. In severe cases, this can lead to leaks or failure to provide pressure relief. These impurities, entering the water heater with the incoming water, can accumulate inside or be expelled with the shower water, reducing the safety of the water supply over time.

[0003] In related technologies, a filter device is installed inside the safety valve to filter impurities and particulate matter in the incoming water to solve the above-mentioned problems. The filter device is not removable or washable; long-term use will reduce the filtration efficiency of the safety valve. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a filter safety valve and a water heater.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] In some embodiments of this application, a filter safety valve is provided, comprising:

[0007] A valve housing, wherein a water inlet channel and a filter chamber are formed inside the valve housing, and the filter chamber is connected to the water inlet channel;

[0008] A filter assembly is detachably disposed within the filter chamber. The filter assembly includes a frame and a filter screen. The filter screen is disposed on the frame, and the frame is detachably connected to the wall of the filter chamber.

[0009] Compared with existing technologies, the above technical solution has the following advantages or beneficial effects:

[0010] The filter assembly can be detachably installed within the filter chamber via a detachable connection between the frame component and the filter cavity. The frame component serves as the mounting carrier for the filter screen; removing it from the installation cavity allows for easy removal of the filter screen for cleaning or replacement.

[0011] In some embodiments of this application, the skeleton component includes:

[0012] A first skeleton portion, which closes the end opening of the filter chamber;

[0013] The second skeleton part is provided at the end of the first skeleton part, the filter screen is provided on the second skeleton part, and the second skeleton part is provided inside the filter cavity.

[0014] In some embodiments of this application, the inner wall of the filter cavity is provided with an internal thread, and the outer peripheral wall of the second skeleton part is provided with an external thread, wherein the internal thread is connected to the external thread.

[0015] In some embodiments of this application, the second skeleton portion includes a second skeleton section and a second skeleton section. The second skeleton section is connected to the first skeleton portion. The outer peripheral wall of the second skeleton section is provided with the external thread. The second skeleton section includes a plurality of vertical connecting portions. The plurality of vertical connecting portions are arranged at intervals along the circumference of the second skeleton portion. The filter screen is disposed inside the vertical connecting portions. The ends of the plurality of vertical connecting portions are provided with circumferential connecting portions. The circumferential connecting portions abut against the bottom of the filter cavity.

[0016] In some embodiments of this application, the outer diameter of the first skeleton part is larger than the outer diameter of the second skeleton part, and a sealing ring is provided on the outer peripheral wall of the second skeleton part. The sealing ring is located at the end opening of the filter cavity and close to the first skeleton part.

[0017] In some embodiments of this application, the outer peripheral wall of the first skeleton portion is provided with concave and convex portions.

[0018] In some embodiments of this application, a hexagonal opening is provided on the upper surface of the first skeleton portion.

[0019] In some embodiments of this application, the skeleton is a plastic part.

[0020] In some embodiments of this application, the filter screen is a metal filter screen or a nylon mesh.

[0021] In some embodiments of this application, a water heater is provided, including a water heater body, the water heater body being connected to an inlet pipe and an outlet pipe, and the inlet pipe being provided with a filter safety valve as described above. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural diagram of a filter safety valve according to some embodiments;

[0024] Figure 2 A cross-sectional view of a filter safety valve according to some embodiments;

[0025] Figure 3 This is a structural diagram of a filtering component according to some embodiments;

[0026] Figure 4 A cross-sectional view of a skeleton member according to some embodiments;

[0027] Figure 5 This is a cross-sectional view of a valve housing according to some embodiments.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100. Valve body; 110. Filter chamber; 111. Internal thread; 120. Mounting chamber; 130. External leakage chamber; 141. Inlet; 142. Outlet; 143. External leakage port; 150. Inlet channel;

[0030] 200. Filter assembly; 210. Frame component; 211. First frame section; 2111. Concave-convex portion; 2112. Hexagonal opening; 212. Second frame section; 2121. First section of second frame; 2122. Second section of second frame; 2123. External thread; 2124. Vertical connecting part; 2125. Circumferential connecting part; 220. Filter screen; 230. Sealing ring;

[0031] 300. Internal leakage device;

[0032] 400. External leakage device. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0038] An electric water heater is a type of water heater that uses electricity as its primary energy source. The high-temperature heat generated after the power is turned on directly heats the water stored in the water heater to produce hot water.

[0039] Electric water heaters typically consist of a water tank, an electric heating element, and an electronic control board. The water tank has a storage cavity to store water to be heated. The electric heating element is inserted into the storage cavity of the water tank. The electronic control board is used to control the electric heating element to operate by turning the power on and off, so that the water in the tank is heated to the set temperature.

[0040] For the water tank of an electric water heater, the tank generally consists of an outer shell and an inner tank, with an insulation layer between them. The outer shell is usually made of plastic to meet the requirements of aesthetic and diverse designs; the inner tank can be made of metal or plastic, depending on the needs.

[0041] In addition, the insulation layer formed between the outer shell and the inner liner is commonly made of materials such as asbestos, sponge, foam plastic, and polyurethane foam. In conventional technology, foaming is usually used to form the insulation layer in order to achieve good insulation effect.

[0042] For water tanks with metal inner liner, corrosion can easily occur inside due to water quality. Therefore, magnesium rods are installed on the water tank and inserted into the water storage cavity inside the tank.

[0043] Magnesium has the lowest electrochemical potential among metals and is physiologically non-toxic. Therefore, it is ideal for making magnesium rods to protect the inner liner. The size of the magnesium rod directly affects the duration and effectiveness of the protection; the larger the magnesium rod, the better the protection and the longer the protection time.

[0044] The water tank is also equipped with an inlet pipe and an outlet pipe. The inlet pipe is used to deliver cold water into the water storage cavity formed inside the water tank, while the hot water in the water storage cavity is output from the outlet pipe.

[0045] For electric heating components, electric heating methods such as electric heating wires, magnetic energy, or silicon tube heating can be used to heat the water stored in the water storage chamber.

[0046] The control board is used to receive detection signals from relevant sensors (such as water temperature sensors and flow sensors) and control the power supply to and from the electric heating components.

[0047] When the electric water heater is working, the electric control board controls the electric heating element to be powered on and heated. When the water temperature in the tank reaches the set value, the electric control board controls the electric heating element to be powered off.

[0048] In some embodiments of this application, a water heater is provided, comprising a water heater body connected to an inlet pipe and an outlet pipe. A water storage chamber is formed within the water heater body, the inlet pipe supplies water to the water storage chamber, and the water in the water storage chamber flows out through the outlet pipe.

[0049] A filter safety valve is installed on the water inlet pipe, and the filter safety valve has a drain outlet. During the water heater's heating process, when the internal water pressure becomes too high, the filter safety valve opens to release pressure and drain water. The filter safety valve is connected to a drain outlet, through which the water flowing out of the filter safety valve is discharged.

[0050] When water enters the water heater, impurities and particles in the water can enter the filter safety valve, causing it to malfunction and potentially leading to leaks or failure to provide pressure relief. These impurities can accumulate inside the water heater or be expelled during showering, reducing the safety of the water supply over time.

[0051] In related technologies, safety valves are equipped with a filter device to filter impurities and particulate matter in the incoming water. This filter device is not removable or washable; prolonged use will reduce its filtration efficiency.

[0052] To solve this technical problem, this application provides a filter safety valve. Figure 1 This is a structural diagram of a filter safety valve. Figure 2 This is a cross-sectional view of a filter safety valve. The filter safety valve includes a valve body 100. An inlet channel 150 and a filter chamber 110 are formed within the valve body 100, and the filter chamber 110 is connected to the inlet channel 150. Figure 5 This is a cross-sectional view of valve housing 100.

[0053] The filter safety valve also includes a filter assembly 200. Figure 3 This is a structural diagram of a filter assembly 200. The filter assembly 200 is detachably disposed within a filter chamber 110. The filter assembly 200 includes a frame member 210 and a filter screen 220, the filter screen 220 being disposed on the frame member 210, and the frame member 210 being detachably connected to the chamber wall of the filter chamber 110. Figure 4 This is a cross-sectional view of the skeleton component 210.

[0054] When water flows through the inlet channel 150, it first flows through the filter component 200, where impurities and particles in the inlet water are filtered.

[0055] The detachable connection between the frame member 210 and the filter chamber 110 allows for the detachable installation of the filter assembly 200 within the filter chamber 110. The frame member 210 serves as the mounting carrier for the filter screen 220; by removing the frame member 210 from the mounting chamber 120, the filter screen 220 can be disassembled for easy cleaning or replacement.

[0056] In some embodiments of this application, the valve housing 100 has an installation cavity 120, an external leakage cavity 130, an inlet 141, an outlet 142, and an external leakage port 143. The external leakage cavity 130 is connected to the installation cavity 120, the inlet 141 is connected to the installation cavity 120, the outlet 142 is connected to the installation cavity 120, and the external leakage port 143 is connected to the external leakage cavity 130.

[0057] An internal leakage device 300 is installed in the installation cavity 120, and an external leakage device 400 is installed in the external leakage cavity 130. The internal leakage device 300 and the external leakage device 400 can realize the water inlet, shut-off, internal leakage and external leakage of the water heater according to the changes in the water pressure of the inner tank and the inlet water pressure.

[0058] The internal leakage device 300 and the external leakage device 400 can have various structures. For example, the internal leakage device 300 may include an internal leakage valve stem, an internal leakage spring, a sealing spring, a sealing gasket, and a positioning adjustment plate, etc. The external leakage device 400 may include an external leakage spring and an external leakage seal, etc.

[0059] The internal leakage device 300 and the external leakage device 400 mainly constitute the safety valve body part that plays a safety role in the safety valve. The structure of the internal leakage device 300 and the external leakage device 400 is understandable and easy to implement for those skilled in the art, and will not be described further here.

[0060] The inlet 141, the mounting cavity 120, and the outlet 142 form an inlet channel 150. The filter cavity 110 is disposed within the mounting cavity 120. The filter cavity 110 is located below the internal leakage device 300, and the water filtered by the filter assembly 200 flows through the internal leakage device 300.

[0061] In some embodiments of this application, the filter chamber 110 is inclined relative to the water inlet channel 150, and the open end of the filter chamber 110 is located outside the mounting cavity 120. The filter assembly 200 is installed or removed through the open end of the filter chamber 110, which facilitates operation.

[0062] In some embodiments of this application, reference is made to Figure 2 and Figure 3 The skeleton member 210 includes a first skeleton portion 211. The first skeleton portion 211 closes the end opening of the filter chamber 110.

[0063] The skeleton member 210 also includes a second skeleton part 212. The first skeleton part 211 is disposed at the end of the second skeleton part 212, the filter screen 220 is disposed on the second skeleton part 212, and the second skeleton part 212 is disposed inside the filter chamber 110.

[0064] The first frame portion 211 and the second frame portion 212 are an integral structure. The second frame portion 212 is inserted into the filter chamber 110 through its open end, while the first frame portion 211 closes the open end of the filter chamber 110. The second frame portion 212 serves as the mounting carrier for the filter screen 220. The complete insertion of the second frame portion 212 into the filter chamber 110 allows the filter screen 220 to have maximum contact with water, thus improving the filtration effect. The first frame portion 211, on the other hand, seals the open end of the mounting cavity 120.

[0065] In some embodiments of this application, the inner wall of the filter cavity 110 is provided with an internal thread 111, and the outer peripheral wall of the second skeleton part 212 is provided with an external thread 2123, and the internal thread 111 is connected to the external thread 2123.

[0066] The skeleton component 210 and the filter chamber 110 are detachably connected by a threaded connection, which facilitates disassembly and assembly.

[0067] In some embodiments of this application, the second skeleton part 212 includes a second skeleton section 2121 and a second skeleton section 2122 with an integral structure, and the second skeleton section 2121 is connected to the first skeleton part 211.

[0068] The outer peripheral wall of the second skeleton section 2121 is provided with an external thread 2123 for threaded connection with the cavity wall of the filter cavity 110.

[0069] The second frame section 2122 includes multiple vertical connecting parts 2124, which are arranged at intervals along the circumference of the second frame section 212. The filter screen 220 is disposed inside the vertical connecting parts 2124. The ends of the multiple vertical connecting parts 2124 are provided with circumferential connecting parts 2125, which abut against the bottom of the filter chamber 110.

[0070] A gap for water flow is formed between two adjacent vertical connecting parts 2124, and the area enclosed by multiple vertical connecting parts 2124 is a cavity, which communicates with the mounting cavity 120 through the aforementioned gap. The inlet water first flows through the filter screen 220, and then flows into the downstream mounting cavity 120 and the internal leakage device 300.

[0071] Multiple vertical connecting parts 2124 satisfy both the installation requirements of the filter screen 220 and the water flow requirements.

[0072] In some embodiments of this application, the outer diameter of the first skeleton part 211 is larger than the outer diameter of the second skeleton part 212. A sealing ring 230 is provided on the outer peripheral wall of the second skeleton part 212. The sealing ring 230 is located at the end opening of the filter chamber 110 and close to the first skeleton part 211, and is located above the external thread 2123. The sealing ring 230 achieves a seal between the skeleton part 210 and the cavity wall of the filter chamber 110, preventing water leakage.

[0073] In some embodiments of this application, the outer peripheral wall of the first skeleton portion 211 is provided with a concave-convex portion 2111. For example, the concave-convex portion 2111 is a hand-tightening thread. The concave-convex portion 2111 is provided to facilitate manual disassembly by the user.

[0074] In some embodiments of this application, a hexagonal opening 2112 is provided on the upper surface of the first skeleton part 211 to facilitate manual disassembly by the user using tools such as a hexagonal wrench.

[0075] In some embodiments of this application, the skeleton member 210 is a plastic part, which helps to reduce costs.

[0076] In some embodiments of this application, the filter screen 220 is a metal filter screen or a nylon mesh, for example, a stainless steel filter screen. This makes the filter screen 220 easy to manufacture and prevents it from rusting, thus ensuring water safety.

[0077] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0078] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. A filter relief valve characterized by, Including: A valve housing, wherein a water inlet channel and a filter chamber are formed inside the valve housing, and the filter chamber is connected to the water inlet channel; A filter assembly is detachably disposed within the filter chamber. The filter assembly includes a frame and a filter screen. The filter screen is disposed on the frame, and the frame is detachably connected to the wall of the filter chamber.

2. The filter safety valve according to claim 1, characterized in that, The skeleton component includes: A first skeleton portion, which closes the end opening of the filter chamber; The second skeleton part is provided at the end of the first skeleton part, the filter screen is provided on the second skeleton part, and the second skeleton part is provided inside the filter cavity.

3. The filter safety valve according to claim 2, characterized in that, The inner wall of the filter chamber is provided with an internal thread, and the outer peripheral wall of the second skeleton part is provided with an external thread, and the internal thread is connected to the external thread.

4. The filter safety valve according to claim 3, characterized in that, The second skeleton part includes a second skeleton section and a second skeleton section. The second skeleton section is connected to the first skeleton part. The outer peripheral wall of the second skeleton section is provided with the external thread. The second skeleton section includes a plurality of vertical connecting parts. The plurality of vertical connecting parts are arranged at intervals along the circumference of the second skeleton part. The filter screen is disposed inside the vertical connecting parts. The ends of the plurality of vertical connecting parts are provided with circumferential connecting parts. The circumferential connecting parts abut against the bottom of the filter chamber.

5. The filter safety valve according to claim 2, characterized in that, The outer diameter of the first skeleton part is larger than the outer diameter of the second skeleton part. A sealing ring is provided on the outer peripheral wall of the second skeleton part. The sealing ring is located at the end opening of the filter cavity and close to the first skeleton part.

6. The filter safety valve according to claim 2, characterized in that, The outer peripheral wall of the first skeleton part is provided with concave and convex parts.

7. The filter safety valve according to claim 2, characterized in that, A hexagonal opening is provided on the upper surface of the first skeleton part.

8. The filter safety valve according to any one of claims 1 to 7, characterized in that, The skeleton component is made of plastic.

9. The filter safety valve according to any one of claims 1 to 7, characterized in that, The filter screen is a metal filter screen or a nylon filter screen.

10. A water heater, characterized by It includes a water heater body, the water heater body is connected to an inlet pipe and an outlet pipe, and the inlet pipe is provided with a filter safety valve as described in any one of claims 1 to 9.

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