Inlet water filtering device of water heater

Abstract

The utility model discloses an inlet water filtering device of a water heater, and belongs to the technical field of water heaters. A water inlet filtering device of a water heater comprises a shell, a water inlet hole is formed in the left end of the shell, a water inlet valve is arranged at the water inlet hole, a water outlet hole is formed in the right end of the shell, a water outlet valve is arranged at the water outlet hole, a positioning boss and a water spraying pipe are arranged at the top of the water inlet valve, and a drain outlet is formed in the bottom of the water inlet valve. A blow-down valve is arranged at the blow-down port, and a filtering assembly is arranged in the shell. Through the action of the four layers of filtering plates, filtering of clear water is completed, meanwhile, cleaning of the filtering plates in the filtering assembly is completed through cooperation of the cleaning assembly and the water spraying pipe, and the problems that passing of the filtering device is reduced and the water flow speed is reduced due to impurity accumulation of the filtering plates in long-term use are solved.

Description

Technical Field

[0001] This utility model relates to the field of water heater technology, and more specifically, to a water inlet filtration device for a water heater. Background Technology

[0002] Health is an important indicator that people are generally concerned about. Existing gas water heaters are mainly designed to provide hot water for bathing. The hot water is generally supplied directly to users without being filtered, and the whole process does not improve the quality of tap water. As people's quality of life improves, users have higher and higher requirements for the comfort of bathing water, as well as for the quality of bathing water.

[0003] Existing water heaters with filtration functions experience a buildup of large particles, such as silt, inside the filter after a period of use, leading to reduced filter flow and reduced water inlet velocity. Furthermore, the inconvenient and time-consuming disassembly and reassembly of the filter components during use makes timely cleaning difficult. Therefore, we propose an inlet water filtration device for water heaters. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] The purpose of this utility model is to provide a water inlet filtration device for a water heater, so as to solve the problem mentioned in the background art that after long-term use, large particles of impurities such as mud and sand accumulate in the filter device, causing the flow rate of the filter device to decrease and affecting the inlet water flow rate.

[0006] 2. Technical Solution

[0007] A water inlet filtration device for a water heater includes a housing. The left end of the housing has a water inlet hole with a water inlet valve. The right end of the housing has a water outlet hole with a water outlet valve. The top of the water inlet valve has a positioning boss and a spray pipe. The bottom of the water inlet valve has a drain port with a drain valve. A filter assembly is installed inside the housing.

[0008] Preferably, the interior of the outer shell is hollow and has an inlet chamber, a filter chamber, and an outlet chamber. The filter chamber is located at the right end of the inlet chamber, and the outlet chamber is located at the right end of the filter chamber. The filter assembly is divided into three parts: the inlet chamber, the filter chamber, and the outlet chamber.

[0009] Preferably, a water inlet valve is provided on the left side of the water inlet chamber, a first filter plate is provided on the right side of the water inlet chamber, the water inlet valve is fixedly connected through the inner wall of the outer shell, the first filter plate is fixedly connected to the inner wall of the outer shell, a cleaning component is provided at the top of the inside of the water inlet chamber, and a drain port is provided at the bottom of the inside of the water inlet chamber.

[0010] Preferably, the cleaning assembly includes a fixing pin, a cleaning push rod, an elastic element, and a cleaning plate. The cleaning push rod passes through the top of the housing and is disposed inside the water inlet cavity. The cleaning push rod is slidably connected to the housing. The elastic element has grooves on its left and right sides. The elastic element and the cleaning plate are connected inside the grooves. The elastic element and the cleaning plate are slidably connected to the cleaning push rod. The fixing pin is connected to the right side of the positioning boss and is threaded through the outer wall of the positioning boss.

[0011] Preferably, a second filter plate is provided on the left side of the filter chamber, a third filter plate is provided on the right side of the filter chamber, a water spray pipe is provided on the top of the filter chamber, and a drain outlet is provided at the bottom of the filter chamber. The second and third filter plates are fixedly connected to the inner wall of the outer shell, the water spray pipe passes through the inner wall of the outer shell and is fixedly connected, and multiple water spray holes are opened at the bottom end of the water spray pipe. A drain valve is provided at the drain outlet.

[0012] Preferably, a fourth filter plate is provided on the left side of the water outlet chamber, and a water outlet valve is provided on the right side of the water outlet chamber. The fourth filter plate is fixedly connected to the inner wall of the outer shell, and the water outlet valve is fixedly connected through the inner wall of the outer shell.

[0013] 3. Beneficial effects

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] This invention uses four layers of filter plates to filter clean water. At the same time, the cleaning component and the water spray pipe work together to clean the filter plates in the filter assembly, avoiding the problem of reduced flow rate and decreased water flow caused by impurities accumulating on the filter plates over long-term use. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of a portion of the cleaning component of this utility model;

[0019] Figure 4 This is a partial structural cleaning component disassembly diagram of the present invention;

[0020] The following are the labels in the diagram: 1. Inlet valve; 2. Outer casing; 3. Drain valve; 4. Outlet valve; 5. Fixing pin; 6. Cleaning push rod; 7. Spray pipe; 8. Inlet chamber; 9. First filter plate; 10. Second filter plate; 11. Third filter plate; 12. Fourth filter plate; 13. Spray hole; 14. Filter chamber; 15. Outlet chamber; 16. Elastic element; 17. Cleaning plate; 18. Positioning boss; 19. Drain outlet. Detailed Implementation

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figure 1-4 This utility model provides a technical solution:

[0023] A water inlet filtration device for a water heater includes a housing 2. A water inlet is provided at the left end of the housing 2, and a water inlet valve 1 is provided at the water inlet. A water outlet is provided at the right end of the housing 2, and a water outlet valve 4 is provided at the water outlet. A positioning boss 18 and a spray pipe 7 are provided at the top of the water inlet valve 1. A drain port 19 is provided at the bottom of the water inlet valve 1, and a drain valve 3 is provided at the drain port 19. A filter assembly is provided inside the housing 2 to filter the water.

[0024] The inner cavity of the outer shell 2 is hollow and has an inlet chamber 8, a filter chamber 14, and an outlet chamber 15. The filter chamber 14 is located at the right end of the inlet chamber 8, and the outlet chamber 15 is located at the right end of the filter chamber 14. The filter assembly is divided into three parts: the inlet chamber 8, the filter chamber 14, and the outlet chamber 15. Through the division of the filter assembly into three parts, the water inlet is filtered step by step, thereby improving the water quality.

[0025] A water inlet valve 1 is provided on the left side of the water inlet chamber 8, and a first filter plate 9 is provided on the right side of the water inlet chamber 8. The water inlet valve 1 is fixedly connected through the inner wall of the outer shell 2, and the first filter plate 9 is fixedly connected to the inner wall of the outer shell 2. A cleaning component is provided at the top of the inside of the water inlet chamber 8, and a drain port 19 is provided at the bottom of the inside of the water inlet chamber 8. The inside of the water inlet chamber 8 is cleaned by the cleaning component, and impurities are discharged through the drain valve 3.

[0026] The cleaning assembly includes a fixing pin 5, a cleaning push rod 6, an elastic element 16, and a cleaning plate 17. The cleaning push rod 6 passes through the top of the outer shell 2 and is located inside the water inlet cavity 8. The cleaning push rod 6 is slidably connected to the outer shell 2. The elastic element 16 has grooves on its left and right sides, and the elastic element 16 and the cleaning plate 17 are connected inside the grooves. The elastic element 16, the cleaning plate 17, and the cleaning push rod 6 are slidably connected. The fixing pin 5 is connected to the right side of the positioning boss 18. The fixing pin 5 passes through the outer wall of the positioning boss 18 and is threaded. Through the action of the elastic element 16 on the cleaning plate 17, the cleaning plate 17 is tightly fitted to the water inlet cavity 8. Thus, when the cleaning push rod 6 is pushed, the first filter plate 9 and the inside of the water inlet cavity 8 can be thoroughly cleaned, and all of it can be discharged through the drain valve 3.

[0027] A second filter plate 10 is provided on the left side of the filter chamber 14, a third filter plate 11 is provided on the right side of the filter chamber 14, a water spray pipe 7 is provided on the top of the filter chamber 14, and a drain port 19 is provided on the bottom of the filter chamber 14. The second filter plate 10 and the third filter plate 11 are fixedly connected to the inner wall of the outer shell 2. The water spray pipe 7 passes through the inner wall of the outer shell 2 and is fixedly connected. Multiple water spray holes 13 are opened at the bottom end of the water spray pipe 7. A drain valve 3 is provided at the drain port 19. The inside of the filter chamber is flushed by the water spray pipe 7 and the water spray holes 13 at the top of the filter chamber. The sewage is discharged through the drain valve 3.

[0028] A fourth filter plate 12 is provided on the left side of the water outlet chamber 15, and a water outlet valve 4 is provided on the right side of the water outlet chamber 15. The fourth filter plate 12 is fixedly connected to the inner wall of the outer shell 2, and the water outlet valve 4 is fixedly connected through the inner wall of the outer shell 2.

[0029] Working principle: When water filtration is required, clean water enters the inlet chamber 8 through the inlet valve 2, passes through the first filter plate 9 and the second filter plate 10 into the filter chamber 14, and then passes through the third filter plate 11 and the fourth filter plate 12 to complete the filtration of clean water. The clean water flows into the water heater through the outlet valve 4. After long-term use, rotating the fixing pin 6 pushes the cleaning push rod 6, and the elastic element 16 acts on the cleaning plate 17, so that the cleaning plate 17 is in close contact with the inner wall to complete the cleaning of the filter plate. The water is discharged through the drain valve 3. Clean water is connected to the spray pipe 7 and the filter plates at both ends of the filter chamber 14 are rinsed through the spray holes 13. The water is then discharged through the drain valve 3, completing the cleaning of the filter plates.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water inlet filtration device for a water heater, comprising a housing (2), characterized in that: The outer shell (2) has a water inlet hole on the left end, and a water inlet valve (1) is provided in the water inlet hole. The outer shell (2) has a water outlet hole on the right end, and a water outlet valve (4) is provided in the water outlet hole. The top of the water inlet valve (1) is provided with a positioning boss (18) and a water spray pipe (7). The bottom of the water inlet valve (1) is provided with a drain port (19), and a drain valve (3) is provided in the drain port (19). The interior of the outer shell (2) is provided with a filter assembly.

2. The water inlet filtration device for a water heater according to claim 1, characterized in that: The inner cavity of the outer shell (2) is hollow and has an inlet chamber (8), a filter chamber (14) and an outlet chamber (15). The filter chamber (14) is located at the right end of the inlet chamber (8) and the outlet chamber (15) is located at the right end of the filter chamber (14). The filter assembly is divided into three parts: the inlet chamber (8), the filter chamber (14) and the outlet chamber (15).

3. The water inlet filtration device for a water heater according to claim 2, characterized in that: A water inlet valve (1) is provided on the left side of the water inlet chamber (8), and a first filter plate (9) is provided on the right side of the water inlet chamber (8). The water inlet valve (1) is fixedly connected through the inner wall of the outer shell (2). The first filter plate (9) is fixedly connected to the inner wall of the outer shell (2). A cleaning component is provided at the top of the inside of the water inlet chamber (8), and a drain outlet (19) is provided at the bottom of the inside of the water inlet chamber (8).

4. The water inlet filtration device for a water heater according to claim 3, characterized in that: The cleaning assembly includes a fixing pin (5), a cleaning push rod (6), an elastic element (16), and a cleaning plate (17). The cleaning push rod (6) passes through the top of the outer shell (2) and is located inside the water inlet cavity (8). The cleaning push rod (6) is slidably connected to the outer shell (2). The elastic element (16) has grooves on its left and right sides. The elastic element (16) and the cleaning plate (17) are connected inside the grooves. The elastic element (16) and the cleaning plate (17) are slidably connected to the cleaning push rod (6). The fixing pin (5) is connected to the right side of the positioning boss (18). The fixing pin (5) is threaded through the outer wall of the positioning boss (18).

5. The water inlet filtration device for a water heater according to claim 3, characterized in that: A second filter plate (10) is provided on the left side of the filter chamber (14), a third filter plate (11) is provided on the right side of the filter chamber (14), a water spray pipe (7) is provided on the top of the filter chamber (14), and a drain outlet (19) is provided at the bottom of the filter chamber (14). The second filter plate (10) and the third filter plate (11) are fixedly connected to the inner wall of the outer shell (2). The water spray pipe (7) is fixedly connected through the inner wall of the outer shell (2). Multiple water spray holes (13) are opened at the bottom end of the water spray pipe (7). A drain valve (3) is provided at the drain outlet (19).

6. The water inlet filtration device for a water heater according to claim 2, characterized in that: A fourth filter plate (12) is provided on the left side of the water outlet chamber (15), and a water outlet valve (4) is provided on the right side of the water outlet chamber (15). The fourth filter plate (12) is fixedly connected to the inner wall of the outer shell (2), and the water outlet valve (4) is fixedly connected through the inner wall of the outer shell (2).

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