Draining pump filter, draining pump and clothes processing equipment

Abstract

The invention relates to the technical field of washing equipment, and discloses a draining pump filter, a draining pump and clothes treating equipment, the draining pump filter comprises a sealing end plate, a connecting end plate and a filtering piece, the connecting end plate and the sealing end plate are oppositely arranged, and a water outlet is formed in the connecting end plate; a filtering cavity is formed between the sealing end plate and the connecting end plate; the filter part is arranged in the filter cavity and comprises a cylinder part with an opening in the side wall and a plurality of filter plate parts arranged at intervals in the circumferential direction of the outer side wall of the cylinder part, the cylinder part is arranged around the water outlet, and a plurality of filter holes are formed in the filter plate parts; the outer side, opposite to the opening, of the cylinder part is a water inlet side, inlet water flow is divided along the outer side wall of the cylinder part to form two water flow channels, and at least two filter plate parts are arranged in each water flow channel; and a water outlet space communicated with the water outlet is formed on the inner side of the cylinder part. According to the draining pump filter, the multi-layer filter plate part can perform multi-stage filtration on water flow; meanwhile, due to the adoption of multi-stage filtration, the aperture of the filtration holes does not need to be set to be small, so that the thread scraps are not easy to block the filtration holes.

Description

Technical Field

[0001] The present invention relates to the technical field of washing equipment, and in particular to a drainage pump filter, a drainage pump and a clothing processing device. Background Art

[0002] During the washing process, the drum washing machine uses a drain pump to drain dirty water. However, in actual use, users may leave some foreign objects in the foreign objects, such as coins, hairpins, and nail clippers, which will damage the impeller when passing through the drain pump. At the same time, there are often some lint in the washing water after washing clothes, which can be entangled on the impeller and affect the normal operation of the washing machine. In order to avoid damage from foreign objects and lint entanglement of the impeller of the drain pump, a filter needs to be installed at the water inlet of the drain pump.

[0003] The current drainage pump filter is mainly a filter hole type filter. The filter hole type filter is set with filter holes that only allow washing water to pass through but not wire scraps to pass through, so as to achieve the purpose of filtering washing water. However, in order to be able to filter all foreign objects such as smaller solid parts or tiny hairpins, the filter holes are set too small and the distance between adjacent holes is close, which makes it easy for wire scraps to be retained on the surface of the filter holes and unable to pass through. Over time, the more blockages there are, the greater the flow resistance will be, which will seriously affect the performance curve of the pump and cause an alarm. Summary of the invention

[0004] Based on the technical problem that the drain pump filter in the prior art is easy to be blocked, the present invention provides a drain pump filter, a drain pump and a clothing processing device, which can perform multi-stage filtration on the water flow, thereby improving the capture rate of foreign matter. At the same time, by adopting multi-stage filtration, the aperture of the filter hole does not need to be set small, so that the wire scraps are not easily blocked in the filter hole.

[0005] The present invention provides a drainage pump filter, comprising: Sealing end plate; A connecting end plate is arranged opposite to the sealing end plate and has a water outlet thereon; a filter cavity is formed between the sealing end plate and the connecting end plate; A filter element is arranged in the filter cavity and connected between the sealing end plate and the connecting end plate; the filter element comprises a cylinder portion with an opening on the side wall, and a plurality of filter plate portions arranged at intervals along the circumferential direction of the outer wall of the cylinder portion, the cylinder portion is arranged around the water outlet, and a plurality of filter holes are provided on the filter plate portion; The outer side of the cylinder opposite to the opening is the water inlet side, and the inlet water flow is split along the outer wall of the cylinder to form two water flow channels, and at least two filter plate parts are arranged in each water flow channel; A water outlet space communicated with the water outlet is formed on the inner side of the cylinder, and the incoming water flows into the water outlet space from the opening after passing through a plurality of filter plate portions in sequence.

[0006] In some embodiments, the diameters of the filter holes on the filter plate portions sequentially arranged along the water flow direction gradually decrease.

[0007] In some embodiments, the filter plate portions in the two water flow channels are symmetrically arranged.

[0008] In some embodiments, the filter hole is a circular hole, and a periphery of the filter hole has a rounded surface.

[0009] In some embodiments, a pressure relief hole is provided on the upper portion of the connecting end plate.

[0010] In some embodiments, a connecting side plate is provided between the sealing end plate and the connecting end plate, and a mounting portion is provided on the connecting side plate for being installed in a drainage pump.

[0011] In some embodiments, the cylinder is a hollow hexagonal prism structure with one side blank, and three filter plate portions are respectively arranged in each water flow channel, and the filter plate portions are extended outwardly along the edges of the cylinder.

[0012] In some embodiments, the cylinder is a semi-cylindrical structure, and two filter plate portions are respectively arranged in each water flow channel. The filter plate portions are arc-shaped structures, and the filter plate portions are respectively extended outward along the outer wall surface of the cylinder close to the water inlet side and the cylinder edge at the opening.

[0013] The present invention also includes a drainage pump, including a pump casing, wherein a pump body chamber and a filter chamber are arranged in the pump casing, a pump casing water inlet and a pump casing water outlet are arranged on the filter chamber, and also includes the above-mentioned drainage pump filter, wherein the drainage pump filter is installed in the filter chamber, the water outlet is connected with the pump casing water outlet, and the water inlet side of the cylinder is connected with the pump casing water inlet.

[0014] The present invention also includes a clothes processing device, which includes the above-mentioned drainage pump.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are: The filter element of the drainage pump filter has a barrel and a multi-layer filter plate. The multi-layer filter plate can filter the water flow in multiple stages, which is beneficial to improve the capture rate of foreign matter and prevent foreign matter from damaging the impeller. At the same time, due to the multi-stage filtration, the filter hole diameter does not need to be set small, so that wire scraps are not easily blocked in the filter hole. In addition, the filter plate extends along the length direction of the barrel, and the outer side between adjacent filter plate parts is an open space for easy cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 The structure of the drainage pump filter in the first embodiment of the present invention is shown in FIG. Figure 1 ; Figure 2 The structure of the drainage pump filter in the first embodiment of the present invention is shown in FIG. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the filter element in the drainage pump filter in the first embodiment of the present invention; Figure 4 for Figure 3 A partial cross-sectional view of Figure 5 This is a schematic diagram of water flow in the drainage pump filter in the first embodiment of the present invention; Figure 6 This is a schematic diagram of water flow in a drainage pump in Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of water flow in the drainage pump filter in the second embodiment of the present invention; Description of reference numerals: Pump housing 100; pump housing water inlet 110; pump housing water outlet 120; installation port 130; Filter 200; Sealing end plate 210; Connecting end plate 220; water outlet 221; pressure relief hole 222; Filter element 230; cylinder 231; filter plate 232; filter hole 233; first filter plate 232a; second filter plate 232b; Connecting side plate 240; mounting portion 241; Impeller 300; The third filter plate portion 232c; the fourth filter plate portion 232d; the fifth filter plate portion 232e; DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 cannot be understood as a limitation on the present invention.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. Embodiment 1

[0022] Reference Figure 1-Figure 6 , a drainage pump is provided in the first embodiment of the present invention. The drainage pump includes a pump housing 100, a filter 200 arranged in the pump housing 100, an impeller 300, and a motor assembly. A pump body chamber (not shown) and a filter chamber are arranged in the pump housing 100, and a pump housing water inlet 110 and a pump housing water outlet 120 are arranged on the filter chamber. The filter 200 and the impeller 300 are installed in the filter chamber, and the motor assembly is arranged in the pump body chamber. In this embodiment, the filter chamber has a first end and a second end opposite to each other, the first end has an installation port 130, the filter 200 is inserted into the installation port 130 and installed in the filter chamber, the second end of the filter chamber is the pump housing water outlet 120, and the pump housing water inlet 110 is opened on the side wall of the filter chamber.

[0023] See also Figure 2-Figure 4 The drain pump filter 200 includes a sealing end plate 210 , a connecting end plate 220 and a filter element 230 .

[0024] The sealing end plate 210 and the connecting end plate 220 are arranged opposite to each other, and a filter cavity is formed between the sealing end plate 210 and the connecting end plate 220 ; the filter element 230 is arranged in the filter cavity and connected between the sealing end plate 210 and the connecting end plate 220 .

[0025] The filter 200 is inserted into the filter chamber through the installation opening 130 of the pump housing 100, and the sealing end plate 210 and the installation opening 130 can be connected by threads. After assembly, the sealing end plate 210 and the installation opening 130 are sealed. The connecting end plate 220 is close to the second end of the filter chamber, and the impeller 300 is located between the connecting end plate 220 and the pump housing water outlet 120. The connecting end plate 220 is provided with a water outlet 221 in the center, and the water outlet 221 is connected to the pump housing water outlet 120.

[0026] The filter element 230 includes a cylinder 231 with an opening on its side wall, and a plurality of filter plates 232 circumferentially spaced apart from each other along the outer wall of the cylinder 231 . The cylinder 231 is disposed around the water outlet 221 , and a plurality of filter holes 233 are formed on the filter plates 232 .

[0027] The outer side of the cylinder 231 opposite to the opening is the water inlet side, and the water inlet side is connected to the pump housing water inlet 110. The inlet water flow enters the water inlet side from the pump housing water inlet 110.

[0028] The incoming water flow is divided along the outer wall of the cylinder 231 to form two water flow channels, see Figure 4 and Figure 5 At least two filter plate portions 232 are arranged in each water flow channel. The inner side of the cylinder portion 231 forms a water outlet space connected to the water outlet 221 .

[0029] In this embodiment, the cylinder 231 of the filter element 230 is a semi-cylindrical structure, and two filter plate portions 232 are respectively arranged in each water flow channel, and the two filter plate portions 232 are respectively a first filter plate portion 232a and a second filter plate portion 232b, and the filter plate portions 232 in the two water flow channels are symmetrically arranged. The two filter plate portions 232 are arc-shaped structures, roughly in the shape of a parabola, and the filter plate portions 232 are respectively extended outward along the outer wall surface of the cylinder 231 close to the water inlet side and the cylinder edge at the opening. After the filter 200 is assembled, the outer edges of the two filter plate portions 232 are in contact with the inner wall of the drainage pump filter chamber or leave a small gap.

[0030] like Figure 5 As shown, the incoming water flows into the filter chamber from the water inlet 110 of the pump casing, and after being diverted by the cylinder 231, it is filtered by the two filter plate parts 232 in the two water flow channels respectively, and then gathered into the water outlet space through the opening, and then discharged through the middle water outlet space, the water outlet 221, and the pump casing water outlet 120.

[0031] In another embodiment, more than two filter plate portions may be respectively disposed in each water flow channel.

[0032] The filter element 230 of the above-mentioned drain pump filter 200 has a barrel portion 231 and a multi-layer filter plate portion 232. The multi-layer filter plate portion 232 can perform multi-stage filtration on the water flow, which is beneficial to improve the capture rate of foreign matter and prevent foreign matter from damaging the impeller 300. At the same time, due to the multi-stage filtration, the aperture of the filter hole 233 does not need to be set small, so that wire scraps are not easily blocked in the filter hole 233. In addition, the filter plate portion 232 extends along the length direction of the barrel portion 231, and the outer side between adjacent filter plate portions 232 is an open space for easy cleaning.

[0033] In this embodiment, the diameters of the filter holes 233 on the filter plate parts 232 arranged in sequence along the water flow direction gradually decrease. The filter holes 233 on the first filter plate part 232a on the outside are relatively large, and the filter holes 233 on the second filter plate part 232b on the inside are relatively small, so that the water flow can be filtered step by step, and larger foreign matter can be filtered through the first filter plate part 232a, and smaller foreign matter can pass through the second filter plate part 232b on the inside, thereby improving the blocking rate of foreign matter and the water flow rate.

[0034] In this embodiment, the filter plate portions 232 in the two water flow channels are symmetrically arranged.

[0035] The filter hole 233 is preferably a circular hole, and the filter hole 233 has a rounded surface around it. The purpose of the rounded corners of the filter hole 233 is to prevent the long strips of wire scraps from hanging in the middle of the two filter holes 233, and the rounded corners are smooth, which is conducive to the passage of wire scraps.

[0036] In this embodiment, a pressure relief hole 222 is further provided at the upper part of the connecting end plate 220. When the washing water in the washing tub is nearly emptied, no water enters the filter chamber from the pump housing water inlet 110. At this time, the water in the pump housing water outlet 120 and the drain pipe outside the washing machine flows back under the action of gravity and impacts the pump chamber at a high speed. At this time, the air in the pump chamber has a certain pressure due to the centrifugal force. The pressure in the pump chamber can enter the filter chamber through the pressure relief hole 222 in a short time. Since the filter chamber, the water inlet and the washing tub are connected, the air can smoothly discharge the pressure to the filter chamber and the connected tub through the pressure relief hole 222, thereby avoiding the generation of noise.

[0037] The number of the pressure relief holes 222 is not specifically limited. In this embodiment, two pressure relief holes 222 are arranged on the top. The shape of the pressure relief holes 222 can be circular, oval, square or strip.

[0038] In this embodiment, a connecting side plate 240 is arranged between the sealing end plate 210 and the connecting end plate 220. A mounting portion 241 is arranged on the connecting side plate 240. The mounting portion 241 is a raised structure that can cooperate with the inner wall groove of the pump casing 100 and be installed in the pump casing 100.

[0039] The filter element 230 is an integral structure, and the connecting end plate 220 and the sealing end plate 210 can be an integral structure or a separate structure with the filter element 230 . Embodiment 2

[0040] See also Figure 7 The difference between the filter in this embodiment and the first embodiment is that the filter element structure of the filter is different. In this embodiment, the cylinder 231' of the filter element is a hollow hexagonal prism structure with one side blank. Three filter plate parts are respectively arranged in each water flow channel. The three filter plate parts are respectively the third filter plate part 232c, the fourth filter plate part 232d and the fifth filter plate part 232e. The three filter plate parts are arranged to extend outward along the edge of the cylinder. After the filter is assembled, the outer edges of the three filter plate parts are in contact with the inner wall of the drainage pump filter chamber or leave a small gap.

[0041] The inlet water flows into the filter chamber from the water inlet of the pump casing, and after being diverted by the cylinder, it is filtered by the three filter plates in the two water flow channels, and then gathered to the water outlet space from the opening, and then discharged through the middle water outlet space, the water outlet, and the pump casing outlet.

[0042] In this embodiment, the filter holes on the outermost third filter plate portion 232c are the largest, and the filter holes on the innermost fifth filter plate portion 232e are the smallest, which can achieve step-by-step filtration of the water flow. Larger foreign matter can be filtered through the third filter plate portion 232c, and smaller foreign matter can pass through the inner fourth filter plate portion 232d and the fifth filter plate portion 232e in turn. After three-stage filtration, the blocking rate of foreign matter is improved while the water flow rate is improved.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A drainage pump filter, characterized in that: include: Sealing end plate; A connecting end plate is arranged opposite to the sealing end plate and has a water outlet thereon; a filter cavity is formed between the sealing end plate and the connecting end plate; A filter element is arranged in the filter cavity and connected between the sealing end plate and the connecting end plate; the filter element comprises a cylinder portion with an opening on the side wall, and a plurality of filter plate portions arranged at intervals along the circumferential direction of the outer wall of the cylinder portion, the cylinder portion is arranged around the water outlet, and a plurality of filter holes are provided on the filter plate portion; The outer side of the cylinder opposite to the opening is the water inlet side, and the inlet water flow is split along the outer wall of the cylinder to form two water flow channels, and at least two filter plate parts are arranged in each water flow channel; A water outlet space communicated with the water outlet is formed on the inner side of the cylinder, and the incoming water flows into the water outlet space from the opening after passing through a plurality of filter plate portions in sequence.

2. The drain pump filter according to claim 1, characterized in that: The diameters of the filter holes on the filter plate parts sequentially arranged along the water flow direction gradually decrease.

3. The drain pump filter according to claim 1, characterized in that: The filter plate parts in the two water flow channels are symmetrically arranged.

4. The drain pump filter according to claim 1, characterized in that: The filter hole is a circular hole, and a circumference of the filter hole has a rounded surface.

5. The drain pump filter according to claim 1, characterized in that: A pressure relief hole is arranged on the upper part of the connecting end plate.

6. The drain pump filter according to claim 1, characterized in that: A connecting side plate is arranged between the sealing end plate and the connecting end plate, and a mounting portion is arranged on the connecting side plate for being installed in a drainage pump.

7. The drainage pump filter according to any one of claims 1 to 6, characterized in that: The cylinder is a hollow hexagonal column structure with one side blank. Three filter plates are respectively arranged in each water flow channel, and the filter plates are extended outward along the edges of the cylinder.

8. The drainage pump filter according to any one of claims 1 to 6, characterized in that: The cylinder is a semi-cylindrical structure, and two filter plates are respectively arranged in each water flow channel. The filter plates are arc-shaped structures, and the filter plates are respectively extended outward along the outer wall surface of the cylinder close to the water inlet side and the cylinder edge at the opening.

9. A drainage pump, comprising a pump housing, wherein a pump body chamber and a filter chamber are arranged in the pump housing, and a pump housing water inlet and a pump housing water outlet are arranged on the filter chamber, characterized in that: It also includes the drainage pump filter according to any one of claims 1 to 8, wherein the drainage pump filter is installed in the filter chamber, the water outlet is connected to the water outlet of the pump casing, and the water inlet side of the cylinder is connected to the water inlet of the pump casing.

10. A clothes processing device, characterized in that: Comprising the drainage pump as claimed in claim 9.

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