Filtering connecting assembly and wall-hanging stove

Abstract

The utility model discloses a filtration connecting assembly, including: a water inlet joint and a filtration assembly, the water inlet joint includes a first channel and a second channel, a step is formed between the first channel and the second channel, the filtration assembly includes a filtration piece and a fixing piece, the filtration piece extends outward, and the fixing piece is fixed on the filtration piece. The lower end of the filtering part is arranged in a hemispherical shape, the fixing part is arranged in the first channel and abuts against the step, and the filtering part is located in the second channel; the utility model further discloses a wall-hanging stove which comprises a heating hot water outlet pipe, a switching valve, an external heating water outlet pipe, a heat exchanger, a heating water inlet pipe, an external heating water return pipe, a water pump and the filtering connecting assembly. Compared with the prior art, the wall-hanging stove water pump can be prevented from rotating, and the water pump can work normally.

Description

Technical Field

[0001] The utility model relates to the field of wall-mounted boilers, and particularly relates to a filtering connection component and a wall-mounted boiler. Background Art

[0002] At present, there are too many impurities in the heating water or the pipeline is not cleaned and maintained for a long time, which easily causes the wall-mounted boiler water pump to often get stuck when too many impurities accumulate.

[0003] When the gap between the shaft and the shaft sleeve inside the water pump is stuck by sundries and cannot operate, the user can only disassemble the outer shell of the wall-mounted boiler, remove the sundries, then use tools to turn the shaft of the water pump, and finally reassemble the wall-mounted boiler again, which is very time-consuming and laborious.

[0004] Therefore, based on the above problems, it is necessary to improve the existing wall-mounted boiler to solve the above problems. Content of the Utility Model

[0005] Aiming at the problems existing in the above-mentioned prior art, the utility model can avoid the water pump of the wall-mounted boiler from getting stuck and enable the water pump to work normally.

[0006] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0007] A filtering connection component includes: a water inlet joint and a filtering component. The water inlet joint includes a first channel and a second channel, and a step is formed between the first channel and the second channel. The filtering component includes a filtering element and a fixing element. The filtering element extends outward, and the lower end of the filtering element is arranged in a hemispherical shape. The fixing element is arranged in the first channel and abuts against the step, and the filtering element is located in the second channel.

[0008] Preferably, the diameter of the filtering element is smaller than the diameter of the second channel;

[0009] The length of the fixing element in the vertical direction is less than or equal to the length of the first channel, and the length of the filtering element in the vertical direction is less than the length of the second channel.

[0010] Preferably, the fixing element includes a top and a bottom. The diameter of the top is larger than the diameter of the bottom. The diameter of the bottom is larger than the diameter of the first channel, and the diameter of the bottom is smaller than the diameter of the second channel. The top is in interference fit with the first channel.

[0011] Preferably, the fixing element is made of polyoxymethylene or polyethylene.

[0012] Preferably, the filtering element and the fixing element are injection-molded and fixed.

[0013] Preferably, the filtering element is made of stainless steel.

[0014] Preferably, the filter element has 50 mesh numbers and the aperture of the filter element is 0.281 mm.

[0015] Preferably, the water inlet joint is made of brass.

[0016] A wall-mounted boiler includes: a heating hot water pipe, a switching valve, an external heating water outlet pipe, a heat exchanger, a heating water inlet pipe, an external heating return pipe, a water pump and the filter connection assembly. The heating hot water pipe, the switching valve and the external heating water outlet pipe are connected in sequence. The water pump inlet and outlet are respectively connected to the external heating return pipe and the heating water inlet pipe, and the filter connection assembly is connected to the external heating return pipe.

[0017] Preferably, the water pump includes a housing, a water pump stator is arranged inside the housing, a water pump rotor is arranged on the water pump stator, and the water pump rotor can cooperate with the filter connection assembly through the external heating return pipe.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] It can avoid the stuck rotation of the wall-mounted boiler water pump, enabling the water pump to work normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the wall-mounted boiler;

[0021] Figure 2 It is a schematic structural diagram of the cooperation between the filter connection assembly and the water pump;

[0022] Figure 3 It is a schematic structural diagram of the filter assembly;

[0023] Figure 4 It is a schematic structural diagram of the water inlet joint. DETAILED DESCRIPTION OF THE INVENTION

[0024] The following will be described in detail in conjunction with the attached Figures 1-4 , so as to make the technical solution of the present invention easier to understand and master.

[0025] In this embodiment, it should be understood that the orientation or positional relationship indicated by terms such as "middle", "upper", "lower", "top", "right side", "end", "front", "back", "middle", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0026] In addition, in this specific embodiment, if the connection or fixing method between components is not specifically described, the connection or fixing method can be bolt fixing, pin fixing, or pin shaft connection, etc., which are commonly used in the prior art. Therefore, it will not be elaborated in this embodiment.

[0027] As Figure 2 shown, a filtering connection assembly includes: a water inlet joint 9 and a filtering assembly 8. In this embodiment, the water inlet joint 9 is made of brass, which is heat-resistant and corrosion-resistant.

[0028] As Figure 3 and Figure 4 shown, the water inlet joint 9 includes a first channel 15 and a second channel 16. A step 19 is formed between the first channel 15 and the second channel 16. The filtering assembly 8 includes a filtering element 13 and a fixing element 14. The filtering element 13 extends outward, so that the filtering element 13 has a certain height, and the lower end of the filtering element 13 is hemispherical, which can increase the filtering area.

[0029] The fixing element 14 is arranged in the first channel 15 and abuts against the step 19. The filtering element 13 is located in the second channel 16. The diameter of the filtering element 13 is smaller than the diameter of the second channel 16. The length of the fixing element 14 in the vertical direction is less than or equal to the length of the first channel 15. The length of the filtering element 13 in the vertical direction is less than the length of the second channel 16.

[0030] The fixing element 14 includes a top 17 and a bottom 18. The diameter of the top 17 is larger than the diameter of the bottom 18. The diameter of the bottom 18 is larger than the diameter of the first channel 15, and the diameter of the bottom 18 is smaller than the diameter of the second channel 16. The top 17 is in interference fit with the first channel 15.

[0031] Since the top 17 is in interference fit with the first channel 15, the diameter of the top 17 is larger than the diameter of the water inlet joint 9. The bottom 18 is fitted and installed to the step 19 of the water inlet joint 9. Therefore, the diameter of the bottom 18 is larger than the diameter of the first channel 15 of the water inlet joint 9 and smaller than the diameter of the second channel 16 at the same time.

[0032] Since the filtering assembly 8 is inserted into the water inlet joint 9, the bottom 18 plane of the filtering element 13 is sealed with the step 19 of the water inlet joint 9, and the top 17 of the filtering element 13 is in interference fit with the first channel 15 of the water inlet joint 9. Therefore, the installation is compact and not easy to fall off. And the top 17 of the fixing element 14 can be inserted into the first channel 15 of the water inlet joint 9, which will not affect the outer diameter of the water inlet joint 9 and the installation of the external heating return pipe 7 mentioned below.

[0033] Since the fixing member 14 needs to be placed in the water flow, the fixing member 14 is made of polyoxymethylene or polyethylene. In this embodiment, polyethylene is adopted, which is non-toxic, heat-resistant, has good chemical stability, is insoluble in water, and has low water absorption. Using it in the water flow can effectively extend the service life. Of course, in other embodiments, materials with similar characteristics such as polyoxymethylene can also be used, which will not be elaborated here in detail.

[0034] In this embodiment, the filter member 13 and the fixing member 14 are injection-molded and fixed, with a tight fit, to prevent the filter member 13 from detaching from the fixing member 14 due to excessive water flow.

[0035] In this embodiment, the filter member 13 is made of stainless steel, which has strong corrosion resistance, high heat resistance, is not easy to age, is easy to clean, and is durable, and can meet the usage requirements of the wall-mounted boiler.

[0036] In this embodiment, the number of mesh holes of the filter member 13 is 50, and the aperture of the filter member 13 is 0.281 mm. In other embodiments, it can also be adjusted according to the actual situation, which will not be elaborated here in detail.

[0037] As Figure 1 and Figure 2 shown, a wall-mounted boiler includes: a heating hot water pipe 1, a switching valve 2, an external heating outlet pipe 3, a heat exchanger 4, a heating inlet pipe 5, an external heating return pipe 7, a water pump 6, and a filter connection assembly ( Figure 2 The arrow direction in

[0038] The water pump 6 includes a housing 10. A water pump stator 12 is provided inside the housing 10. The water pump stator 12 is provided with a water pump rotor 11, and the water pump rotor 11 can cooperate with the filter connection assembly through the external heating return pipe 7.

[0039] By setting up the filter assembly 8, when the water pump 6 is operating, if there are small debris or large bacterial clusters in the external heating return pipe 7, the small debris or large bacterial clusters will be blocked on the filter member 13, preventing them from entering the gap between the water pump stator 12 and the water pump rotor 11, which may cause the water pump 6 to get stuck. In addition, when the impurities blocked in the filter member 13 affect the water supply flow rate, the external pipe interface can be directly loosened at any time, and the filter assembly 8 can be removed for cleaning, thereby reducing the impact on the water flow rate. After cleaning, it can be reconnected to the water inlet joint 9 to achieve repeated use and save the replacement cost.

[0040] The technical effects of the present utility model are mainly reflected in the following aspects:

[0041] It can avoid the stuck rotation of the water pump of the wall-mounted boiler, enabling the water pump to work properly.

[0042] Of course, the above are only typical examples of the present utility model. In addition, the present utility model can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present utility model.

Claims

1. A filtering connection component, characterized in that, Comprising: A water inlet joint (9) and a filter assembly (8), the water inlet joint (9) includes a first channel (15) and a second channel (16), a step (19) is formed between the first channel (15) and the second channel (16), the filter assembly (8) includes a filter element (13) and a fixing member (14), the filter element (13) extends outward, and the lower end of the filter element (13) is arranged in a hemispherical shape, the fixing member (14) is arranged in the first channel (15) and abuts against the step (19), and the filter element (13) is located in the second channel (16).

2. The filtering connection component according to claim 1, wherein: The diameter of the filter element (13) is smaller than the diameter of the second channel (16); The length of the fixing member (14) in the vertical direction is less than or equal to the length of the first channel (15), and the length of the filter element (13) in the vertical direction is less than the length of the second channel (16).

3. The filtering connection component according to claim 2, characterized in that: The fixing member (14) includes a top (17) and a bottom (18), the diameter of the top (17) is larger than the diameter of the bottom (18), the diameter of the bottom (18) is larger than the diameter of the first channel (15), and the diameter of the bottom (18) is smaller than the diameter of the second channel (16), and the top (17) is in interference fit with the first channel (15).

4. The filtering connection component according to claim 1, wherein: The fixing member (14) is made of polyoxymethylene or polyethylene.

5. The filtering connection component according to claim 1, characterized in that: The filter element (13) and the fixing member (14) are injection-molded and fixed.

6. The filtering connection component according to claim 1, wherein: The filter element (13) is made of stainless steel.

7. The filtering connection component according to claim 1, characterized in that: The number of mesh holes of the filter element (13) is 50, and the pore diameter of the filter element (13) is 0.281 mm.

8. The filtering connection component as described in claim 1, characterized in that: The water inlet joint (9) is made of brass.

9. A wall-mounted boiler, characterized in that, Comprising: A heating hot water pipe (1), a switching valve (2), an external heating outlet pipe (3), a heat exchanger (4), a heating inlet pipe (5), an external heating return pipe (7), a water pump (6) and a filter connection assembly as described in any one of claims 1-8, the heating hot water pipe (1), the switching valve (2) and the external heating outlet pipe (3) are connected in sequence, the inlet and outlet of the water pump (6) are respectively connected to the external heating return pipe (7) and the heating inlet pipe (5), and the filter connection assembly is connected to the external heating return pipe (7).

10. The wall-mounted boiler according to claim 9, wherein: The water pump (6) includes a housing (10), a water pump stator (12) is arranged in the housing (10), a water pump rotor (11) is arranged on the water pump stator (12), and the water pump rotor (11) can cooperate with the filter connection assembly through the external heating return pipe (7).

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