CN220047341U

CN220047341U - Filter unit and clothes treatment device

Info

Publication number: CN220047341U
Application number: CN202320447484.9U
Authority: CN
Inventors: 钟江; 王得军; 徐鹏飞
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2023-03-10
Filing date: 2023-03-10
Publication date: 2023-11-21
Anticipated expiration: 2033-03-10

Abstract

The utility model provides a filtering unit which comprises a fixed module and a filtering cavity which are detachably connected, wherein the fixed module and the filtering cavity are of variable cross-section structures from top to bottom; the filter cavity at least comprises a filter layer, a dephosphorization layer and a denitrification layer which are arranged in parallel. The filtering unit filters the washing water through the filter layer, the dephosphorization layer and the denitrification layer arranged in the filter cavity, so that insoluble impurities such as clothes fibers and the like can be filtered, and phosphorus and nitrogen in the washing water can be treated, and the pollution of water quality can be effectively avoided; and the fixed module is detachably connected with the filter cavity, so that a user can conveniently clean the filter cavity. The utility model also provides a clothes treatment device adopting the filtering unit.

Description

Filter unit and clothes treatment device

Technical Field

The present utility model relates to the technical field of household appliances, and more particularly, to a filtering unit and a laundry treating apparatus.

Background

After the household or commercial clothes treatment device in the prior art finishes washing, washing water is directly discharged into a sewer through a drainage pipeline, and especially when a commercial washing machine finishes washing cloth such as bedsheets, quilts, towels, carpets and the like in schools and hotels, the discharged washing water contains soluble impurities such as phosphorus elements, nitrogen elements and the like, soil, short fibers and other insoluble impurities, and the impurities pollute water quality; and when the washing water is directly discharged to the sewer, insoluble impurities such as lint and the like in the washing water can block the sewer, so that the use experience of a user is reduced.

The present utility model has been made in view of this.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a filtering unit which is used for filtering washing water through a filter layer, a dephosphorization layer and a denitrification layer arranged in a filter cavity, so that insoluble impurities such as clothes fibers and the like can be filtered, phosphorus elements and nitrogen elements in the washing water can be treated, and the pollution of water quality can be effectively avoided; and the fixed module is detachably connected with the filter cavity, so that a user can conveniently clean the filter cavity.

Another object of the present utility model is to provide a laundry treating apparatus employing the above-described filtering unit.

To achieve the first object, the present utility model adopts the following basic concept:

the filtering unit comprises a fixed module and a filtering cavity which are detachably connected, wherein the fixed module and the filtering cavity are of variable cross-section structures from top to bottom;

the filter cavity at least comprises a filter layer, a dephosphorization layer and a denitrification layer which are arranged in parallel.

Further, the filter layer comprises a first filter layer and a second filter layer, wherein the mesh size of the first filter layer is larger than that of the second filter layer;

the dephosphorization layer and the denitrification layer are arranged between the first filter layer and the second filter layer.

Further, the first filter layer and/or the second filter layer are/is a shell structure.

Further, the filter cavity is provided with a water inlet pipeline and a water outlet pipeline in a protruding mode at the contact surface of the filter cavity and the fixed module, the fixed module is provided with a water inlet channel and a water outlet channel, the water inlet pipeline is embedded into the water inlet channel, and the water outlet pipeline is embedded into the water outlet channel.

Further, the inner diameter of the water inlet channel is increased along the water flow direction, and/or the inner diameter of the water outlet channel is increased along the water flow direction.

Further, the water inlet pipeline is higher than the first filter layer, and/or the water outlet pipeline is lower than the second filter layer.

Further, a first sealing ring is arranged at the jogged position of the water inlet pipeline and the water inlet channel, and/or a second sealing ring is arranged at the jogged position of the water outlet pipeline and the water outlet channel.

Further, the fixing module is provided with a position sensor at the contact surface with the filter cavity.

Further, the filter cavity comprises an upper cover and a cavity, and the upper cover and the cavity can be connected in an openable and closable manner.

In order to achieve the second object, the utility model adopts the following basic conception of the technical scheme:

a clothes treatment device adopting the filtering unit comprises a water outlet, wherein the water outlet is communicated with the outside through the filtering unit.

After the technical scheme is adopted, compared with the prior art, the utility model has the following beneficial effects:

1. the filtering unit filters the washing water through the filter layer, the dephosphorization layer and the denitrification layer arranged in the filter cavity, so that insoluble impurities such as clothes fibers and the like can be filtered, and phosphorus and nitrogen in the washing water can be treated, and the pollution of water quality can be effectively avoided; and the fixed module is detachably connected with the filter cavity, so that a user can conveniently clean the filter cavity.

2. The inner diameter of the water inlet channel and/or the water outlet channel is increased along the water flow direction, so that the phenomenon of backflow of washing water can be avoided.

3. According to the utility model, the position sensor is arranged on the fixed module, so that the filter cavity can be ensured to be installed in place through the position sensor, water leakage of washing water is avoided, and the filtering effect can be ensured.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:

FIG. 1 is a schematic cross-sectional view of a filtration unit of the present utility model;

FIG. 2 is a schematic view of the structure of the fixing module and the filter chamber of the present utility model;

fig. 3 is a schematic view showing a structure in which the laundry treating apparatus of the present utility model is coupled to a filtering unit.

The main elements in the figure are illustrated: 1. a filter chamber; 101. a first filter layer; 102. a second filter layer; 103. a dephosphorization layer; 104. a denitrification layer; 105. a third filter layer; 106. a water inlet pipeline; 107. a water outlet pipeline; 108. an upper cover; 109. a cavity; 1010. a handle;

2. a fixed module; 201. a water inlet channel; 202. a water outlet channel; 203. a position sensor; 204. a first seal ring; 205. a second seal ring;

3. a laundry treating apparatus.

It should be noted that the drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-2, the utility model provides a filter unit, which comprises a detachable fixed module 2 and a filter cavity 1, wherein the fixed module 2 and the filter cavity 1 are of a variable cross-section structure from top to bottom.

In one embodiment of the utility model, the fixing module 2 has a structure with a narrow upper part and a wide lower part, the filter cavity 1 has a structure with a wide upper part and a narrow lower part, and when the fixing module 2 is connected with the filter cavity 1, the filter unit has a more regular appearance and is convenient to accommodate; and the filter cavity 1 is of a structure with wide upper part and narrow lower part, and when washing water containing more insoluble impurities enters the filter cavity 1, the filter cavity 1 is not blocked by the insoluble impurities due to the large upper part of the filter cavity 1, so that the normal operation of the filter unit is facilitated.

The filter cavity 1 at least comprises a filter layer, a dephosphorization layer 103 and a denitrification layer 104 which are arranged in parallel. Wherein the filter layer is used for filtering insoluble impurities such as filings. The dephosphorization layer 103 is used for filtering phosphorus elements dissolved in the washing water, specifically, the dephosphorization layer 103 can remove phosphorus through aluminum salt, calcium salt or ferric salt, and the inorganic salt can react with phosphate to generate precipitation, so that the purpose of dephosphorization is achieved. The denitrification layer 104 is used for filtering nitrogen elements dissolved in the washing water, specifically, in the denitrification layer 104, ammonia nitrogen and phosphorus in the washing water can be precipitated in the form of magnesium ammonium phosphate, that is, the denitrification layer 104 can simultaneously recover the phosphorus elements and the nitrogen elements in the washing water.

The filter chamber 1 includes an upper cover 108 and a chamber 109, and the upper cover 108 and the chamber 109 are connected to each other in an openable and closable manner. When a user cleans the inside of the filter chamber 1, the upper cover 108 is opened first, and then the internal structure of the chamber 109 is cleaned. Specifically, the upper cover 108 may be hinged to any side of the cavity 109, so as to realize an openable function. Alternatively, the upper cover 108 and the cavity 109 may be connected in a fitting manner, and the upper cover 108 is provided with a handle, so that a user can detach the upper cover 108 from the cavity 109 through the handle and then clean the interior of the cavity 109.

Further, the filter layers include a first filter layer 101 and a second filter layer 102, and the mesh size of the first filter layer 101 is larger than that of the second filter layer 102, the first filter layer 101 is used for filtering relatively large insoluble impurities such as lint, dirt, and the like, and the second filter layer 102 is used for further filtering.

In the filter chamber 1, a first filter layer 101 and a second filter layer 102 are provided along the flow direction of the washing water. The dephosphorization layer 103 and the denitrification layer 104 are arranged between the first filtering layer 101 and the second filtering layer 102, and sediment generated in the dephosphorization layer 103 and the denitrification layer 104 is filtered by the second filtering layer 102, so that the sediment is prevented from blocking a sewer.

The first filter layer 101 and/or the second filter layer 102 are preferably shell structures. If the first filter layer 101 and the second filter layer 102 are of planar structures, the central areas of the first filter layer 101 and the second filter layer 102 are less constrained, deformation may occur under the impact of the washing water, and if the first filter layer 101 and the second filter layer 102 are contacted with the inner wall of the filter cavity 1 under the impact of the washing water, the contact area between the first filter layer 101 and the second filter layer 102 and the washing water is reduced, so that the filtering efficiency is affected. When the first filter layer 101 and/or the second filter layer 102 are/is arranged as a shell structure, the height of the first filter layer 101 and/or the second filter layer 102 is gradually reduced from the middle area to two sides, or when the first filter layer 101 and/or the second filter layer 102 are of a hemispherical structure, the height of the first filter layer 101 and/or the second filter layer 102 is gradually reduced from the central area to the periphery, the stress of the first filter layer 101 and/or the second filter layer 102 can be improved, the first filter layer 101 and/or the second filter layer 102 is not easy to deform, and the surface area of the first filter layer 101 and/or the second filter layer 102 of the shell structure is larger, so that the contact area of washing water and the first filter layer 101 and/or the second filter layer 102 is increased, and the filtering efficiency is improved.

On the other hand, when the first filter layer 101 and/or the second filter layer 102 are/is arranged as a shell structure, the contact area between the first filter layer 101 and/or the second filter layer 102 and the palm of the user is increased, so that the user can take out the first filter layer 101 and/or the second filter layer 102 for cleaning.

In one or more embodiments of the present utility model, to secure the filtering efficiency, the first filter layer 101 and the second filter layer 102 are each provided in a housing structure.

The first filter layer 101 and the second filter layer 102 which are arranged on two sides of the dephosphorization layer 103 and the denitrification layer 104 are removed, the filter layers further comprise a third filter layer 105, and the third filter layer 105 is arranged between the first filter layer 101 and the dephosphorization layer 103 and is used for filtering insoluble impurities such as small-size thread scraps, sludge and the like. The third filter layer 105 may be provided as a fine sand layer.

The filter cavity 1 is convexly provided with a water inlet pipeline 106 and a water outlet pipeline 107 at the contact surface of the filter cavity and the fixed module 2, the fixed module 2 is provided with a water inlet channel 201 and a water outlet channel 202, the water inlet pipeline 106 is embedded into the water inlet channel 201, and the water outlet pipeline 107 is embedded into the water outlet channel 202. The filter chamber 1 and the fixed module 2 are detachably connected through the jogging of the water inlet pipeline 106 and the water inlet channel 201 and the jogging of the water outlet pipeline 107 and the water outlet channel 202.

When the water inlet pipeline 106 is located at a height greater than that of the first filter layer 101 and washing water enters the cavity 109 of the filter cavity 1 through the water inlet pipeline 106, impurities such as thread scraps in the washing water are filtered through the first filter layer 101 firstly.

And/or the water outlet line 107 is at a height less than the height of the second filter layer 102. After the washing water is filtered by the second filter layer 102, insoluble impurities such as lint in the washing water, which may block the sewer, and phosphorus and nitrogen dissolved in the washing water are filtered, and the washing water at this time does not pollute the water quality and can be discharged through the water outlet pipeline 107.

Preferably, the water inlet pipeline 106 of the present utility model is located at a height greater than the height of the first filter layer 101, and the water outlet pipeline 107 is located at a height less than the height of the second filter layer 102. When the washing water enters the cavity 109 of the filter cavity 1 through the water inlet pipeline 106, firstly, the washing water passes through the first filter layer 101, and insoluble impurities with larger size in the washing water are filtered out; the rest of the washing water passes through the third filter layer 105, and the third filter layer 105 filters out insoluble impurities with smaller size in the washing water; then the washing water sequentially passes through the dephosphorization layer 103 and the denitrification layer 104, and the phosphorus element and the nitrogen element in the washing water are separated from the washing water in a precipitation mode; the final wash water enters the water outlet line 107 through the second filter layer 102. In this process, the second filter layer 102 can further filter insoluble impurities and precipitates of phosphorus and nitrogen elements with smaller sizes, and the washing water discharged through the water outlet pipeline 107 does not pollute the water quality.

When a user cleans the filter cavity 1, firstly, the upper cover 108 is opened, then the first filter layer 101, the third filter layer 105, the dephosphorization layer 103, the denitrification layer 104 and the second filter layer 102 are sequentially taken out for separate cleaning, after the cleaning is finished, the second filter layer 102, the denitrification layer 104, the dephosphorization layer 103, the third filter layer 105 and the first filter layer 101 are sequentially put into the cavity 109, and the upper cover 108 is closed.

Further, in order to avoid the occurrence of the backflow of the washing water, the inner diameter of the water inlet channel 201 increases in the water flow direction. Specifically, the water inlet channel 201 includes a first water inlet channel and a second water inlet channel, and compared with the first water inlet channel, the second water inlet channel is closer to the filter cavity 1, and the second water inlet channel is used for accommodating the water inlet pipeline 106, that is, the water inlet pipeline 106 is attached to the inner wall of the second water inlet channel. Because the inner diameter of the second water inlet channel is larger than that of the first water inlet channel, when the washing water enters the water inlet pipeline 106 which is connected with the second water inlet channel in a jogged way through the first water inlet channel, the water pressure is reduced due to the increase of the cross section area, and at the moment, the water pressure in the first water inlet channel is larger than that in the water inlet pipeline 106, so that the phenomenon of back flow of the washing water can not occur. Meanwhile, in order to avoid the water leakage of the washing water, a first sealing ring 204 is further disposed at the joint of the water inlet pipe 106 and the water inlet channel 201, and the first sealing ring 204 may be made of rubber.

And/or the water outlet channel 202 increases in inner diameter in the water flow direction. Specifically, the water outlet channel 202 includes a first water outlet channel and a second water outlet channel, and compared with the first water outlet channel, the second water outlet channel is closer to the filter cavity 1, and the second water outlet channel is used for accommodating the water outlet pipeline 107, that is, the water outlet pipeline 107 is attached to the inner wall of the second water outlet channel. At this time, the washing water flows into the outside through the second water outlet channel and the first water outlet channel in sequence, because the inner diameter of the water outlet channel 202 increases along the water flow direction, the inner diameter of the first water outlet channel is larger than the inner diameter of the second water outlet channel, when the washing water enters the first water outlet channel through the second water outlet channel, the water pressure is reduced due to the increase of the cross-sectional area, and at this time, the water pressure in the water outlet pipeline 107 is larger than the water pressure in the first water outlet channel, so that the phenomenon of backflow of the washing water can not occur. Meanwhile, in order to avoid the water leakage of the washing water, a second sealing ring 205 is further disposed at the joint of the water outlet pipeline 107 and the water outlet channel 202, and the second sealing ring 205 may be made of rubber.

Preferably, the inner diameters of the water inlet pipeline 106 and the water outlet pipeline 107 are increased along the water flow direction, a first sealing ring 204 for preventing washing water from leaking is arranged at the jogged position of the water inlet pipeline 106 and the water inlet channel 201, and a second sealing ring 205 for preventing washing water from leaking is arranged at the jogged position of the water outlet pipeline 107 and the water outlet channel 202.

Further, since the fixing module 2 and the filter cavity 1 are in embedded connection, the fixing module 2 of the present utility model is further provided with a position sensor 203 at the contact surface with the filter cavity 1, and the position sensor 203 is used for detecting whether the filter cavity 1 is installed in place. Specifically, the position sensor 203 may be a contact sensor, and the fixed module 2 is provided with a travel switch, when the filter cavity 1 is installed, the water inlet pipeline 106 is firstly placed in the water inlet channel 201, the water outlet pipeline 107 is placed in the water outlet channel 202, and then the filter cavity 1 is pushed towards the direction of the fixed module 2, and when the filter cavity 1 touches the travel switch on the fixed module 2, the filter cavity 1 is indicated to be installed in place.

Further, a handle 1010 is further provided on the sidewall of the filter chamber 1, so that the user can detach and install the filter chamber 1 conveniently.

As shown in fig. 3, the present utility model also provides a laundry treating apparatus 3 using the above-mentioned filtering unit, including a drain port connected to the outside through the filtering unit.

The fixed module 2 is arranged on the side wall of the clothes treatment device 3, is fixedly connected or detachably connected with the clothes treatment device 3, and the filter cavity 1 is arranged on the fixed module 2. When the fixing module 2 is detachably connected with the clothes treating device 3, the fixing module can be installed on the side wall of the clothes treating device 3 through screws, the water inlet channel 201 of the fixing module 2 is communicated with the water outlet of the clothes treating device 3, the water outlet channel 202 of the fixing module is communicated with the outside, and filtered washing water is discharged.

In one embodiment of the present utility model, the fixing module 2 is attached to a sidewall of the laundry treating device 3, and the water outlet channel 202 is provided with a bend, so that the filtered washing water flows out from the bottom of the fixing module 2.

After the laundry treating apparatus 3 finishes washing, the washing water enters the water inlet pipe 106 of the filter chamber 1 through the water outlet and the water inlet channel 201. When the washing water enters the cavity 109 of the filter cavity 1 through the water inlet pipeline 106, the washing water passes through the first filter layer 101, wherein the first filter layer 101 can adopt a coarse grid, the grid size of the coarse grid is larger, and the coarse grid is used for filtering insoluble impurities such as wire scraps, mud dirt and the like with larger size;

the washing water filtered by the first filter layer 101 is filtered again by the third filter layer 105, and the third filter layer 105 can adopt a fine sand layer for filtering insoluble impurities such as small-sized filings, sludge and the like;

the washing water filtered by the third filter layer 105 is filtered by the dephosphorization layer 103 again, and aluminum salt or ferric salt in the dephosphorization layer 103 reacts with phosphorus element in the washing water to generate precipitate, and the phosphorus element is separated from the washing water;

the washing water filtered by the dephosphorization layer 103 is filtered by the denitrification layer 104 again, magnesium ammonium phosphate precipitation is generated when the washing water flows through the denitrification layer 104, and the denitrification layer 104 can further filter the phosphorus element and the nitrogen element in the washing water;

the washing water filtered through the denitrification layer 104 is filtered again by the second filtering layer 102, and the second filtering layer 102 may employ a fine grid for filtering insoluble matters of small size remaining in the washing water, such as fine precipitates generated in the dephosphorization layer 103 and the denitrification layer 104.

The filtered washing water then enters the water outlet channel 202 of the fixed module 2 through the water outlet pipeline 107 and is discharged through the water outlet channel 202.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the above-mentioned embodiment, but is not limited to the above-mentioned embodiment, and any simple modification, equivalent change and modification made by the technical matter of the present utility model can be further combined or replaced by equivalent embodiments within the scope of the technical proposal of the present utility model without departing from the scope of the technical proposal of the present utility model.

Claims

1. The filtering unit is characterized by comprising a fixed module and a filtering cavity which are detachably connected, wherein the fixed module and the filtering cavity are of variable cross-section structures from top to bottom;

2. A filter unit according to claim 1, wherein the filter layers comprise a first filter layer and a second filter layer, the first filter layer having a mesh size greater than the mesh size of the second filter layer;

3. A filter unit according to claim 2, wherein the first and/or second filter layer is a shell structure.

4. A filter unit according to claim 2, wherein the filter chamber is provided with a water inlet pipe and a water outlet pipe protruding from the contact surface with the fixed module, the fixed module is provided with a water inlet channel and a water outlet channel, the water inlet pipe is embedded in the water inlet channel, and the water outlet pipe is embedded in the water outlet channel.

5. A filter unit according to claim 4, wherein the inlet channel increases in inner diameter in the direction of water flow and/or the outlet channel increases in inner diameter in the direction of water flow.

6. A filter unit according to claim 4, wherein the water inlet line is at a height greater than the height of the first filter layer and/or the water outlet line is at a height less than the height of the second filter layer.

7. A filter unit according to claim 4, wherein a first sealing ring is arranged at the joint of the water inlet pipeline and the water inlet channel, and/or a second sealing ring is arranged at the joint of the water outlet pipeline and the water outlet channel.

8. A filter unit according to any of claims 1-7, wherein the stationary module is provided with a position sensor at its contact surface with the filter chamber.

9. A filter unit according to any of claims 1-7, wherein the filter chamber comprises an upper cover and a chamber, the upper cover being in openable connection with the chamber.

10. A laundry treatment apparatus employing the filter unit according to any one of claims 1 to 9, comprising a drain opening communicating with the outside through the filter unit.