Foaming device, water filling nozzle structure and washing equipment

Abstract

The utility model discloses a bubbling device, water filling nozzle structure and washing equipment, the bubbling device comprises a fixed cover and a filter screen assembly, the fixed cover comprises a mounting frame arranged at the water filling nozzle, the inner side of the mounting frame is provided with a convex part, and the filter screen assembly comprises a plurality of layers of filter screens which are arranged in an overlapped manner; the multiple layers of filter screens enable passing water flow and air to generate tiny bubbles, the filter screen assembly is arranged in the mounting frame in a matched mode and arranged on the side, facing the interior of the water injection opening, of the protruding part, and a gap is formed between the edge, at the water injection opening, of the mounting frame and the edge of the filter screen assembly. The bubbling device is simple in structure, convenient to install and low in cost and has a self-cleaning effect, and the filter screen assembly is not prone to being blocked.

Description

Technical Field

[0001] This utility model belongs to the field of washing equipment technology, specifically, it relates to a foaming device, a water inlet structure, and washing equipment. Background Technology

[0002] Foaming devices are installed in washing equipment such as washing machines. The water flow containing a large number of tiny bubbles generated by the foaming device has a better cleaning effect and can reduce the use of detergent. However, most current foaming devices have problems such as complex structure, inconvenient installation, and high manufacturing and maintenance costs. Summary of the Invention

[0003] The purpose of this invention is to provide a foaming device, a water inlet structure, and a washing device that can generate microbubbles in water flow, thereby solving the aforementioned technical problems in the prior art.

[0004] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0005] According to a first aspect of the present invention, a foaming device is provided, comprising:

[0006] A fixed cover includes a mounting frame for installation at the water inlet, the inner side of which is provided with a protrusion;

[0007] A filter assembly comprising multiple layers of filter screens arranged in an overlapping manner, the multiple layers of filter screens being configured to generate microbubbles in the passing water flow and air;

[0008] The filter assembly is fitted within the mounting frame and disposed on the side of the protrusion facing the water inlet. The mounting frame is configured to form a gap between the edge of the water inlet and the edge of the filter assembly.

[0009] In some embodiments of this utility model, the protrusions are provided in multiple portions and are arranged at intervals on the inner side of the mounting frame.

[0010] In some embodiments of this utility model, one layer of the filter assembly is a fixed filter that is fixedly connected to the mounting frame and / or the protrusion, and the other filters are disposed on the side of the fixed filter away from the protrusion.

[0011] In some embodiments of this utility model, the inner side of the mounting frame is provided with a limiting surface that mates with the edges of the multi-layered filter screen.

[0012] In some embodiments of this utility model, the mounting frame is provided with a connecting part, which is used to be detachably and fixedly connected to the water inlet by fasteners.

[0013] In some embodiments of this utility model, the gap is formed between the mounting frame and the edge of the water inlet, and / or between the mounting frame and the filter assembly, and / or on the mounting frame.

[0014] In some embodiments of this utility model, the mounting frame is provided with a connecting part, which is used to be detachably and fixedly connected to the water inlet by fasteners.

[0015] According to a second aspect of the present invention, a water inlet structure is provided, including the aforementioned aerating device and a pipe body. The pipe body has a communicating water inlet channel and a mixing chamber. At least one pressure boosting hole is formed in the water inlet channel. The outlet end of the mixing chamber forms a water inlet. The filter screen assembly of the aerating device is installed in the water inlet through a fixed cover. The pressure boosting hole is used to accelerate the water flow before it enters the mixing chamber. The mixing chamber forms a negative pressure under the action of the water flow and then draws in air through the gap.

[0016] In some embodiments of this utility model, a support portion is provided inside the outlet end of the mixing chamber, and the filter assembly is sandwiched between the support portion and the protrusion of the fixing cover;

[0017] A positioning part is formed on the side of the mounting frame facing the water inlet, and the positioning part is used to engage with the support part.

[0018] In some embodiments of this utility model, a flow guide shroud is provided at the outlet end of the mixing chamber, the flow guide shroud forms an open cavity on the outside of the foaming device, and a flow guide slope for guiding water flow is provided at the bottom of the flow guide shroud.

[0019] According to a third aspect of the present invention, a washing device is provided, including the water inlet structure described above.

[0020] Compared with the prior art, the advantages and positive effects of this utility model are:

[0021] The filter assembly of this aeration device can be fixed at the water inlet by a fixing cover. The multi-layer filter of the filter assembly is fitted within the mounting frame of the fixing cover and is located on the protrusion within the mounting frame, which prevents the filter from detaching from the mounting frame. The gap between the edge of the mounting frame and the edge of the filter assembly allows air to enter the water inlet. The multi-layer filter is used to generate microbubbles from the passing water flow and air. The aeration device has a simple structure, is easy to install, has low manufacturing cost, and occupies little space. The water flow in the water inlet can carry away impurities through the gap, making the filter assembly less prone to clogging and reducing the later maintenance cost of the product. In addition, the flow of some water through the gap can play a pressure relief role, preventing the water flow from exerting excessive pressure on the aeration device.

[0022] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments 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.

[0024] Figure 1 This is a schematic diagram of the structure of the foaming device provided by this utility model;

[0025] Figure 2 This is a schematic diagram of the aerator provided by this utility model installed at the water inlet;

[0026] Figure 3 This is an exploded view of the bubbling device provided by this utility model;

[0027] Figure 4 This is an exploded view of the fixing cover and fixing filter screen of the foaming device provided by this utility model;

[0028] Figure 5 This is a top view of the water inlet structure provided by this utility model;

[0029] Figure 6 yes Figure 5 Sectional view along line AA;

[0030] Figure 7 This is a side view of the water inlet structure provided by this utility model;

[0031] Figure 8 yes Figure 7 Sectional view along the BB line;

[0032] Figure 9 yes Figure 8 Enlarged view of section C;

[0033] Figure 10 This is a rear view of the water inlet structure provided by this utility model;

[0034] Figure 11 This is a schematic diagram of the internal structure of the pipe body of the water inlet structure provided by this utility model;

[0035] Figure 12 This is a schematic diagram of the installation position of the water inlet structure provided by this utility model;

[0036] Figure 13This is a schematic diagram of the connection between the water inlet structure and the drain pipe provided by this utility model.

[0037] The reference numerals and their corresponding component names in the figure are as follows:

[0038] 1. Pipe body;

[0039] 11. Water inlet channel;

[0040] 12. Mixing chamber;

[0041] 13. Pressure boosting hole; 131. Flared structure; 132. Baffle rib;

[0042] 14. Baffle section;

[0043] 15. Support component; 151. Support plate; 152. Connecting rib; 153. Guide slope;

[0044] 16. Pipe fittings;

[0045] 17. Enlarged section;

[0046] 18. Flow deflector; 181. Flow deflector ramp;

[0047] 19. Threaded hole;

[0048] 2. Filter assembly;

[0049] 21. Fix the filter screen;

[0050] 3. Fix the cover;

[0051] 31. Mounting frame; 311. Limiting surface;

[0052] 32. Protrusion;

[0053] 33. Positioning part; 331. Mating surface; 332. Slot;

[0054] 34. Connecting part;

[0055] 35. Fasteners;

[0056] 4. Gap;

[0057] 41. First gap;

[0058] 42. Second gap;

[0059] 5. Water injection pipe;

[0060] 6. Bucket lid;

[0061] 61. Mounting slot. Detailed Implementation

[0062] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0063] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "horizontal", "vertical", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to 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.

[0064] In the description of this utility model, it should be noted that, 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In the description of the embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0065] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0066] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Unless otherwise stated, the numerical range herein includes not only the entire range within its two endpoints, but also several sub-ranges contained therein.

[0067] The present invention provides a foaming device that can be applied to washing equipment. Figures 1 to 4 As shown, the foaming device provided by this utility model includes a filter assembly 2 and a fixing cover 3.

[0068] The fixing cover 3 includes a mounting frame 31 for placement at the water inlet, and a protrusion 32 is provided on the inner side of the mounting frame 31. The filter assembly 2 includes multiple layers of filter screens arranged in an overlapping manner, the multiple layers of filter screens being configured to generate microbubbles from the passing water flow and air. The filter assembly 2 fits within the mounting frame 31 and is located on the side of the protrusion 32 facing inwards from the water inlet, the mounting frame 31 being configured to form a gap 4 between the edge of the water inlet and the edge of the filter assembly 2.

[0069] The multi-layered filter screens of the filter screen assembly 2 are arranged in an overlapping manner along the water flow direction. The water flows from the inside of the filter screen assembly 2 to the outside of the filter screen assembly 2. The protrusion 32 of the fixing cover 3 is supported on the outside of the filter screen assembly 2, which can resist the impact of the water flow and prevent the filter screen assembly 2 from falling off the mounting frame 31.

[0070] Outside air can enter the water inlet through gap 4, eliminating the need for a separate air intake channel, thus simplifying the structure of the aerator and reducing its footprint. The water and air in the inlet are rapidly cut and mixed through the mesh of a multi-layered filter, generating numerous tiny bubbles in the water flow.

[0071] During use, the water inlet is located at the end of the water inlet pipe. The water flow delivered by the water inlet pipe exerts a significant impact on the filter screen assembly 2. Excessive impact on the water inlet pipe can cause damage. The gap 4 formed by the mounting frame 31 between the edge of the water inlet and the edge of the filter screen assembly 2 can release some water flow, thus relieving pressure and preventing excessive impact from the water flow from damaging the water inlet pipe.

[0072] Furthermore, the water flow from the inlet can carry away impurities from the filter assembly 2 through the gap 4, cleaning the filter assembly 2, preventing it from becoming clogged, and extending its service life. Even if the filter assembly 2 becomes clogged, the water flow from the inlet can still smoothly pass through the gap 4 and enter the washing equipment without affecting the water intake of the washing device.

[0073] In some embodiments, the gap 4 is formed between the mounting frame 31 and the edge of the water inlet, and / or between the mounting frame 31 and the filter assembly 2, and / or on the mounting frame 31.

[0074] Specifically, an annular gap 4 can be formed between the outer side of the mounting frame 31 and the edge of the outlet end of the mixing chamber 12, and a gap 4 can be formed between the inner side of the mounting frame 31 and the outer edge of the filter assembly 2. The mounting frame 31 itself can construct the gap 4. The gap 4 constructed on the mounting frame 31 can be a through-hole structure, and the shape, number, and position of the through-hole structure can be arbitrarily set.

[0075] In some implementations, such as Figure 2As shown, multiple protrusions 32 are provided and arranged at intervals on the inner side of the mounting frame 31, making the filter assembly 2 more securely mounted. Specifically, the gap 4 between the filter assembly 2 and the mounting frame 31 is formed between adjacent protrusions 32.

[0076] In some embodiments, one layer of the filter assembly 2 is a fixed filter 21 that is fixedly connected to the mounting frame 31 and / or the protrusion 32, and other filters are disposed on the side of the fixed filter 21 away from the protrusion 31. The fixed filter 21 may be fixedly connected to the mounting frame 31 and / or the protrusion 32 by bonding, welding, integral molding or other means.

[0077] Furthermore, the inner side of the mounting frame 31 is provided with a limiting surface 311 that mates with the edge of the multi-layer filter screen. The edge of the multi-layer filter screen of the filter screen assembly 2 can mate with the limiting surface 311, and the multi-layer filter screen can be installed in the mounting frame 31 through the limiting surface 311.

[0078] Specifically, multiple limiting surfaces 311 are provided, and each corresponds to a position of a multiple protrusion 32, thereby enabling a larger gap 4 to be formed between the edge of the filter assembly 2 and the inner side of the mounting frame 31.

[0079] The mounting frame 31 and the multi-layer filter structure are simple, easy to install, and low in cost. During assembly, any number of filter layers can be installed as needed.

[0080] In one embodiment, the filter assembly 2 includes five filter layers, each with a mesh size between 50 and 120 mesh, such as 50 mesh, 60 mesh, 80 mesh, 100 mesh, 120 mesh, etc.

[0081] Filter assembly 2 is configured to generate micro- and nano-bubbles from the water flow and air. These micro- and nano-bubbles, with diameters ranging from tens of micrometers to hundreds of nanometers, fall between micrometer and nanobubbles and possess physical and chemical properties not found in conventional bubbles. The micro- and nano-bubbles increase the contact area between air and water, enhancing the water's ability to dissolve gases. Upon bursting, they generate a large number of hydroxyl radicals. These hydroxyl radicals have extremely high redox potentials, and their powerful oxidizing effect can degrade pollutants such as phenol that are difficult to oxidize and decompose under normal conditions, thus purifying the water.

[0082] In some embodiments, a support is provided inside the water inlet. When the aerator is installed at the water inlet, the filter assembly 2 is configured to be held between the support and the protrusion 32 of the fixing cover 3, thereby making the filter assembly 2 more securely installed.

[0083] In some embodiments, the mounting frame 31 is provided with a connecting portion 34, which is used to detachably and securely connect to the water inlet by a fastener 35. Specifically, connecting portions 34 are provided on opposite sides of the mounting frame 31, and through holes are formed on the connecting portions 34 for installing the fasteners 35, which are screws, to facilitate the installation and removal of the fixing cover 3.

[0084] This utility model also provides a water inlet structure, such as Figure 5 and Figure 11 As shown, the device includes the foaming device provided above, and also includes a tube body 1.

[0085] The interior of the pipe body 1 forms a connected water inlet channel 11 and a mixing chamber 12. At least one pressure-boosting hole 13 is formed within the water inlet channel 11, and a water inlet is formed at the outlet end of the mixing chamber 12. The aerating device includes a filter assembly 2 and a fixing cover 3. The filter assembly 2 is installed at the water inlet of the pipe body 1, i.e., the outlet end of the mixing chamber 12, via the fixing cover 3. The mounting frame 31 of the fixing cover 3 is configured to form a gap 4 between the edge of the water inlet and the edge of the filter assembly 2. The pressure-boosting hole 13 of the pipe body 1 is used to accelerate the water flow before it enters the mixing chamber 12. Under the action of the water flow, the mixing chamber 12 forms a negative pressure and draws in air through the gap 4.

[0086] The mounting frame 31 of the fixed cover 3 has a protrusion 32 on its inner side. The filter assembly 2 includes multiple layers of filter screens arranged in an overlapping manner, which are configured to generate microbubbles from the passing water flow and air. The filter assembly 2 fits within the mounting frame 31 and is located on the side of the protrusion 32 facing the water inlet.

[0087] The other structures, principles, and effects of the filter assembly 2 and the fixing cover 3 in the water inlet structure can be referred to the aeration device provided above in this utility model, and therefore will not be described in detail again.

[0088] After water enters the pipe 1 of the water inlet structure, it flows from the inlet channel 11 to the mixing chamber 12. The diameter of the pressure boosting hole 13 is smaller than that of the inlet channel 11, and the water velocity increases after passing through the pressure boosting hole 13, and the velocity is even faster when entering the mixing chamber 12. According to Bernoulli's principle, the rapidly flowing water can create a negative pressure in the mixing chamber 12, allowing air outside the pipe 1 to quickly enter the mixing chamber 12 through the gap 4 and mix with the water in the mixing chamber 12, eliminating the need for a separate air inlet channel. The water and air are cut and mixed at high speed by multiple layers of filter screens, generating a large number of tiny bubbles in the water flow.

[0089] Such as 5 and Figure 6 As shown, the outlet end of the mixing chamber 12 is directly opposite the water inlet channel 11, so that the water flows through the pressurization hole 13 and forms a water column that is sprayed onto the filter assembly 2. The gap 4 is formed at the edge of the filter assembly 2 to prevent the water column from spraying directly onto the gap 4 and thus obstructing the air from entering.

[0090] Furthermore, the radial dimension of the mixing chamber 12 is enlarged relative to the water inlet channel 11, which facilitates the entry of more air through the gap 4 and allows the outlet end of the mixing chamber 12 to be enlarged, thereby increasing the area of ​​the filter assembly 2 and improving the efficiency of generating microbubbles.

[0091] In some embodiments, the gap 4 surrounds the filter assembly 2 or the mounting frame 31, allowing outside air to enter the mixing chamber 12 evenly from all sides of the filter assembly 2 or the mounting frame 31, which is beneficial for the air to mix fully with the water flow in the mixing chamber 12.

[0092] When the pipe body 1 is installed horizontally or at an angle in the washing equipment, the filter assembly 2 is in a vertical or inclined position, the water in the mixing chamber 12 flows out from the bottom gap 4, and the outside air enters the mixing chamber 12 from the top gap 4.

[0093] In some implementations, such as Figure 8 and Figure 10 As shown, multiple pressure boosting holes 13 are provided in the water inlet channel 11. Compared with a technical solution that only provides one pressure boosting hole 13, providing multiple pressure boosting holes 13 results in a better effect on increasing the water flow velocity. Furthermore, multiple pressure boosting holes 13 can make the water flow injected into the mixing chamber 12 more dispersed, and the dispersed water flow can mix better with the air in the mixing chamber 12.

[0094] In some implementations, such as Figure 8 and Figure 11 As shown, a support 15 is provided inside the outlet end of the mixing chamber 12, and the filter assembly 2 is clamped between the support 15 and the protrusion 32, thereby fixing its position.

[0095] To ensure the filter assembly 2 is installed securely, multiple support parts 15 are provided and are arranged at intervals in the outlet end of the mixing chamber 12. The multiple support parts 15 correspond one-to-one with the multiple protrusions 32 of the fixing cover 3, thereby making the filter assembly 2 more secure.

[0096] Specifically, if Figure 8 and Figure 11 As shown, a stepped structure is formed at the connection between the water inlet channel 11 and the mixing chamber 12. The support part 15 includes a support plate 151 and a connecting rib 152. The support plate 151 extends from the stepped structure to the outlet end of the mixing chamber 12. The connecting rib 152 connects the support plate 151 and the inner wall of the mixing chamber 12, strengthening the structural strength of the support part 15. The filter screen assembly 2 abuts against the top of the support plate 151.

[0097] In some implementations, such as Figure 4 and Figure 9 As shown, a positioning part 33 is formed on the side of the mounting frame 31 near the mixing chamber 12, and the positioning part 33 is engaged with the support part 15.

[0098] Furthermore, the inner side of the positioning part 33 is provided with a mating surface 331 that cooperates with the support plate 151, and the end of the positioning part 33 is provided with a slot 332 that engages with the connecting rib 152, which can play a positioning role and facilitate the installation of the fixed cover 3. The top of the support plate 151 forms a guide slope 153, and the mating surface 331 of the guide slope 153 and the positioning part 33 can guide the installation of the positioning part 33.

[0099] In some embodiments, the position of the protrusion 32 corresponds to the position of the positioning part 33, and the position of the limiting surface 311 on the inner side of the mounting frame 31 corresponds to the position of the mating surface 331. Specifically, the limiting surface 311 is connected to the mating surface 331, and the limiting surface 311 extends to the protrusion 32. During installation, the multi-layer filter of the filter assembly 2 can be inserted into the mounting frame 31 along the mating surface 331 and the limiting surface 311, and abut against the protrusion 32. The support part 15 can enter the mounting frame 31 along the mating surface 331 and then abut against the filter assembly 2.

[0100] Furthermore, the limiting surface 311 and the mating surface 331 protrude from the inner surface of the mounting frame 31 so that a gap 4 can be formed between the filter assembly 2 and the inner surface of the mounting frame 31.

[0101] In some embodiments, the gap 4 formed between the outer side of the mounting frame 31 and the outlet end of the mixing chamber 12 is an annular structure, and the gap 4 formed between the inner side of the mounting frame 31 and the filter assembly 2 is located between adjacent protrusions 32.

[0102] like Figure 8 and Figure 9 In one specific embodiment shown, an annular first gap 41 is formed between the mounting frame 31 and the outlet end of the mixing chamber 12, and a plurality of second gaps 42 are formed between the mounting frame 31 and the filter assembly 2. The plurality of second gaps 42 are distributed at intervals between the plurality of protrusions 32.

[0103] In some implementations, such as Figure 6 and Figure 10 As shown, the pipe body 1 is provided with a threaded hole 19, and the connecting part 34 of the fixing cover 3 is provided with a through hole that is directly opposite to the threaded hole 19 on the pipe body 1. The fastener 35 is a screw, which passes through the through hole of the connecting part 34 and is connected to the threaded hole 19. Specifically, the threaded hole 19 can be provided on the enlarged part 17 of the pipe body 1.

[0104] In some implementations, such as Figure 5 and Figure 6As shown, the pipe body 1 includes a pipe connector 16 and an enlargement 17. A water inlet channel 11 is formed inside the pipe connector 16, and a mixing chamber 12 is formed inside the enlargement 17. The pipe connector 16 can be connected to the water injection pipe 5. During installation, the pipe connector 16 is inserted into the water injection pipe 5, and the pipe connector 16 is fixed in the water injection pipe 5 by a pipe clamp.

[0105] In some implementations, such as Figure 6 As shown, the outlet edge of the mixing chamber 12 is connected to a flow guide shroud 18, which forms an open cavity on the outside of the foaming device. The bottom of the flow guide shroud 18 is provided with a flow guide slope 181 for guiding the water flow.

[0106] Specifically, the flow guide 18 extends away from the pipe joint 16 of the pipe body 1. The cavity formed by the flow guide 18 can accommodate air, which facilitates the entry of air into the mixing chamber 12 through the gap 4. After passing through the filter assembly 2, the water can be sprayed into the cavity formed by the flow guide 18, avoiding obstruction of the water flow. The flow guide slope 181 extends downward from the outlet edge of the mixing chamber 12 to introduce the water flow containing a large number of tiny air bubbles into the washing chamber of the washing device.

[0107] In some embodiments, the pipe body 1 is a component integrally formed, and the pipe connector 16, the enlargement 17, and the flow guide 18 of the pipe body 1 are integrally formed. The fixing cover 3 is a component integrally formed, and the mounting frame 31, the protrusion 32, the positioning part 33, and the connecting part 34 of the fixing cover 3 are integrally formed.

[0108] The water inlet structure provided by this utility model improves the washing effect by incorporating an aerator to generate microbubbles in the water flow. The filter assembly 2 of the aerator is installed on the pipe body 1 of the water inlet structure via a fixing cover 3. Under negative pressure, the mixing chamber 12 inside the pipe body 1 draws in air through the gap 4, eliminating the need for a separate air intake channel. The structure is simple, easy to install, has low manufacturing cost, and occupies little space. The water inlet structure has a self-cleaning effect; the water flow in the pipe body 1 can carry away impurities through the gap 4, preventing the filter assembly 2 from clogging and reducing subsequent maintenance costs. The gap 4 of the water inlet structure also has a pressure relief function, allowing some of the water flow in the mixing chamber 12 of the pipe body 1 to flow out through the gap 4, preventing excessive water pressure. The pipe body 1 and the water inlet pipe 5 can be connected by simple methods such as pipe clamps, making installation convenient.

[0109] This utility model also provides a washing device, which includes the water inlet structure provided above. The structure, principle, and function of the water inlet structure can be referred to the water inlet structure provided above in this utility model, and therefore will not be described again.

[0110] The washing equipment can be electrical appliances such as washing machines, shoe washing machines, and dishwashers. The pipe body 1 of the water inlet structure is connected to the water inlet pipe 5 of the washing equipment.

[0111] In one embodiment, the washing device is a washing machine, such as... Figure 12 and Figure 13 As shown, the washing machine body is equipped with a tub lid 6, and a water inlet pipe 1 is installed on the tub lid 6 and connected to the water inlet pipe 5. An installation groove 61 is provided on the inner side of the tub lid 6, and the pipe 1 is snapped into the installation groove 61. Specifically, the guide shield 18 of the pipe 1 is snapped into the installation groove 61, and a gap is left between the bottom of the guide shield 18 and the inner wall of the tub lid 6 to allow water to flow out.

[0112] In one specific embodiment, a washing tub (not shown in the figure) is provided below the lid 6, and the water inlet structure injects the generated water flow with tiny bubbles into the washing tub below.

[0113] In another specific embodiment, a detergent box can be set below the water inlet structure. The water flow with tiny bubbles generated by the water inlet structure is first injected into the detergent box and then enters the washing tub from the detergent box.

[0114] 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 foaming device, characterized in that, include: A fixed cover includes a mounting frame for installation at the water inlet, the inner side of which is provided with a protrusion; A filter assembly comprising multiple layers of filter screens arranged in an overlapping manner, the multiple layers of filter screens being configured to generate microbubbles in the passing water flow and air; The filter assembly is fitted within the mounting frame and disposed on the side of the protrusion facing the water inlet. The mounting frame is configured to form a gap between the edge of the water inlet and the edge of the filter assembly.

2. The foaming device according to claim 1, characterized in that, The protrusions are provided in multiple portions and are arranged at intervals on the inner side of the mounting frame.

3. The foaming device according to claim 1, characterized in that, One layer of the filter assembly is a fixed filter that is fixedly connected to the mounting frame and / or the protrusion, and the other filters are disposed on the side of the fixed filter away from the protrusion.

4. The foaming device according to claim 1, characterized in that, The inner side of the mounting frame is provided with a limiting surface that mates with the edges of the multi-layered filter screen.

5. The foaming device according to claim 1, characterized in that, The gap is formed between the mounting frame and the edge of the water inlet, and / or between the mounting frame and the filter assembly, and / or on the mounting frame.

6. The foaming device according to any one of claims 1 to 5, characterized in that, The mounting frame is provided with a connecting part, which is used to be detachably and fixedly connected to the water inlet by fasteners.

7. A water inlet structure, characterized in that, The aerating device according to any one of claims 1 to 6 further includes a tube body, wherein a water inlet channel and a mixing chamber are formed inside the tube body, at least one pressure boosting hole is formed in the water inlet channel, and a water inlet is formed at the outlet end of the mixing chamber. The filter screen assembly of the aerating device is installed in the water inlet through a fixed cover. The pressure boosting hole is used to accelerate the water flow before it enters the mixing chamber. The mixing chamber forms a negative pressure under the action of the water flow and then draws in air through the gap.

8. The water inlet structure according to claim 7, characterized in that, A support portion is provided inside the outlet end of the mixing chamber, and the filter assembly is sandwiched between the support portion and the protrusion of the fixing cover. A positioning part is formed on the side of the mounting frame facing the water inlet, and the positioning part is used to engage with the support part.

9. The water inlet structure according to claim 7 or 8, characterized in that, The outlet end of the mixing chamber is provided with a flow guide shroud, which forms an open cavity on the outside of the foaming device. The bottom of the flow guide shroud is provided with a flow guide slope for guiding the water flow.

10. A washing device, characterized in that, The water inlet structure includes any one of claims 7 to 9.

Images