FILTER STRUCTURE, LIQUID STORAGE CASE ASSEMBLY AND WASHING APPARATUS - Patent application

Abstract

The present invention relates to the field of cleaning, and specifically provides a filter structure, a liquid storage case assembly and a washing machine, for solving the problem that foreign matter enters the pipeline and clogs the element when detergent is injected. To this end, the filter structure includes a primary filter body and a secondary filter body, the primary filter body is a tubular structure, the tubular structure includes a bottom, a liquid addition port and an annular side wall, the bottom and the annular side wall are respectively formed with primary filtering holes, the secondary filter body extends between the bottom and the proximal end, and the secondary filter body is formed with secondary filtering holes, so that the target liquid injected from the liquid addition port can be filtered by the primary filter body and then flow out from the secondary filter body, and the invention can effectively filter out the foreign matter mixed in the detergent, and avoid the foreign matter entering the pipeline and clogging and blocking the element.

Description

[Technical field]

[0001] The present invention relates to the field of laundry, and more particularly to a filter structure, a liquid storage case assembly and a laundry device. [Background technology]

[0002] With the improvement of people's living standards, the washing machine has become one of the household appliances commonly used in people's daily life. According to the washing method, the washing machine can be divided into several types of washing machines, such as drum type, agitator type, pulsator type, etc. Taking the pulsator type washing machine as an example, the washing machine includes a control system, a driving motor, a pulsator, a washing tub, a water supply and drainage system, a liquid storage case, etc., among which the liquid storage case is used to store detergent, and specifically includes components such as an inlet, a liquid storage tank, and a liquid supply port. When washing, the user only needs to place the clothes in the washing tub and set the washing course through the control system, and the washing machine will automatically inject appropriate water and detergent according to the amount of clothes, start the driving motor to drive the rotation of the pulsator, and realize automatic washing of the clothes in the washing tub. In the process of daily use and maintenance, the user only needs to regularly refill the liquid storage case with detergent. Effectively improve the washing efficiency and reduce the burden of housework. However, one major problem existing in the liquid storage case of the current washing machine is that the inlet of the liquid storage case does not have an effective filtering structure. Therefore, it is easy for foreign matter to get mixed in when customers add detergent, and after the foreign matter gets into the pipeline, it is easy for it to clog internal elements (e.g., valves, pumps, etc.), causing after-sales problems such as flooding and customer complaints.

[0003] In order to solve the above problems, a liquid storage case with a filtering structure has been developed in the prior art. For example, Chinese invention patent application CN106868799A discloses an automatic detergent dispenser and a washing machine. The automatic detergent dispenser includes a dispenser body, a dispenser tank is provided in the dispenser body, a removable filter is disposed at the dispenser tank's inlet, a pressing cover is provided on the side of the filter away from the inlet to be engaged with the inlet, and the filter is fixed between the inlet and the pressing cover by the pressing cover. When detergent is dispensed, the liquid flows in from the inlet and flows out from the liquid supply port after passing through the filter, and foreign matter mixed therein can be effectively filtered, and the foreign matter can be easily removed by removing the filter. However, the filter structure is relatively simple, so it is desired to improve the filtering effect. Therefore, the technology has room for improvement.

[0004] Accordingly, the field needs new technical solutions to solve the above technical problems. Summary of the Invention [Problem to be solved by the invention]

[0005] In order to solve the technical problem that the prior art lacks an effective filtering structure at the inlet of the liquid storage case, which makes it easy for foreign matter to get mixed in when adding detergent and causes pipe clogging, the present invention provides a filter structure, which includes a primary filter body having a relative distal end and proximal end, a bottom, a liquid adding port located at the distal end, and an annular side wall extending from the bottom to the distal end, the bottom and the annular side wall each having a primary filtering hole, and a secondary filter body extending between the bottom and the proximal end and having a secondary filtering hole, such that the target liquid injected through the liquid adding port can be filtered by the primary filter body and then flow out of the secondary filter body.

[0006] The filter structure of the present invention has a relative distal end and a proximal end, and includes a primary filter body and a secondary filter body. The primary filter body is a tubular structure. The tubular structure has a bottom, a liquid addition port located at the distal end, and an annular side wall extending from the bottom to the distal end, and the bottom and the annular side wall are respectively formed with primary filter holes. With the above arrangement, the target liquid can be quickly permeated through the primary filter holes after being injected through the liquid addition port, and foreign matter mixed in the target liquid can be primarily filtered by the bottom and the annular side wall of the primary filter body. The secondary filter body extends between the bottom and the proximal end, and the secondary filter body is formed with secondary filter holes. With the above arrangement, the target liquid can be quickly permeated through the secondary filter holes after being permeated through the primary filter holes, and foreign matter mixed in the target liquid can be secondary filtered by the secondary filter body.

[0007] In a preferred technical solution of the above filter structure, the filter structure further includes a flat net structure formed at the proximal end, with the above-mentioned configuration, when the target liquid at the bottom of the liquid storage case becomes viscous, the filter structure of the present invention can be repeatedly lifted and pressed by hand, so that the flat net structure can be used to push through the viscous target liquid at the bottom of the liquid storage case, thereby ensuring the flow rate of the target liquid.

[0008] In a preferred technical solution of the above filter structure, a plurality of connecting plates separated from each other are provided between the bottom and the plate-shaped net structure, and a predetermined space is formed between the connecting plates. The connecting plates can improve the structural strength between the primary filter body and the plate-shaped net structure, and can transmit the acting force to the plate-shaped net structure more stably and effectively when the filter structure of the present invention is repeatedly lifted and pressed. The target liquid permeated from the primary filter body gathers and fills the predetermined space. When the target liquid flows out of the liquid storage case quickly, the target liquid that has gathered sufficiently in the predetermined space can be replenished in a timely manner, and the target liquid can be prevented from entraining air when it flows out. In addition, when the filter structure of the present invention is repeatedly lifted and pressed, the target liquid that becomes viscous at the bottom of the liquid storage case can be pushed aside and then entered into the predetermined space for reuse.

[0009] In a preferred technical solution of the above filter structure, the filter structure further includes a handle located at the distal end, which extends outward and away from the end face of the liquid addition port. This arrangement makes the handle higher than the liquid addition port. Therefore, when the target liquid is injected into the liquid addition port, the target liquid does not directly contact the handle, and when the user inserts or removes the filter structure, the fingers can be prevented from directly contacting the target liquid, thereby effectively protecting both hands. The handle can also be kept dry without the target liquid touching the handle, making it easy to insert or remove the filter structure by hand.

[0010] In a preferred technical solution of the above filter structure, the end of the handle away from the liquid-adding port is folded back to form a grip, which is easy for a user to apply force when lifting and pressing.

[0011] In a preferred technical solution of the above filter structure, the handle is provided with a gripping through-hole, which can accommodate the pads of the fingers when the user grips the handle, making it easier for the user to pick it up.

[0012] In a preferred technical solution of the above filter structure, the annular side wall has a multi-step stepped cylindrical wall, and the diameter of the multi-step stepped cylindrical wall gradually decreases along the direction from the distal end to the proximal end. With the above arrangement, the target liquid injected from the liquid addition port flows from the distal end through the multi-step stepped cylindrical wall in sequence, and permeates through the primary filtering holes of the multi-step stepped cylindrical wall, and with the gradually decreasing diameter of the cylindrical wall, the penetration cross section of the target liquid in the flow direction gradually decreases, so that more target liquid permeates through the annular side wall, thereby realizing the rapid permeation of the target liquid.

[0013] In the preferred technical solution of the above filter structure, the annular side wall has a three-stage stepped cylindrical wall, which can ensure the permeation speed of the target liquid from the annular side wall and ensure the simplicity and efficiency of the processing process.

[0014] In the preferred technical solution of the above filter structure, the secondary filter body is an arc wall, and an opening is formed between the arc wall and the bottom. With this arrangement, when the target liquid flows out of the liquid storage case quickly, the opening can make the target liquid more quickly and efficiently replenish and collect in the predetermined space, thereby ensuring that the target liquid waiting to flow out in the predetermined space is sufficient, and further avoiding air entrainment when the target liquid flows out.

[0015] In a preferred technical solution of the above filter structure, the distal end is further provided with a hollow liquid level mark, which allows the liquid level after the target liquid is added to be easily visible through the hollow after the target liquid is injected.

[0016] The present invention further provides a liquid storage case assembly, which includes a liquid storage case provided with a target liquid inlet and a liquid supply port communicating with the target liquid inlet, and a filter structure as described above, which is insertably arranged in the target liquid inlet, and the secondary filter body fits the liquid supply port, so that the target liquid is filtered by the primary filter body and the secondary filter body and then further enters the liquid supply port. The above arrangement ensures that the target liquid injected from the liquid addition port can be effectively filtered after being filtered twice by the primary filter body and the secondary filter body.

[0017] The present invention further provides a washing machine, which includes the above-mentioned liquid storage case assembly, and the above-mentioned arrangement can effectively filter out foreign matter mixed in when detergent is injected, and when there is foreign matter, the foreign matter can be easily removed by inserting and removing the filter, and effectively avoid after-sales problems such as flooding caused by foreign matter entering the pipeline and clogging the internal element. [Brief description of the drawings]

[0018] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. [Figure 1] FIG. 2 is a schematic rear perspective view of one embodiment of a filter structure of the present invention; [Diagram 2] FIG. 2 is a schematic perspective front view of one embodiment of the filter structure of the present invention shown in FIG. 1. [Diagram 3] FIG. 2 is a schematic perspective plan view of one embodiment of the filter structure of the present invention shown in FIG. [Figure 4] 1 is a schematic perspective view of a liquid storage case in one embodiment of the liquid storage case assembly of the present invention; [Diagram 5] 5 is a schematic cross-sectional view of a liquid storage case in one embodiment of the liquid storage case assembly of the present invention shown in FIG. 4. [Figure 6]5 is a schematic bottom view of the bottom cover of the liquid storage case in the embodiment of the liquid storage case assembly of the present invention shown in FIG. 4. [Figure 7] This is a schematic cross-sectional view obtained by cutting in half along the AA cross-sectional line in Figure 6 after combining the bottom cover and filter structure of a liquid storage case in one embodiment of the liquid storage case assembly of the present invention. [Figure 8] 8 is a schematic enlarged view of a portion B in FIG. 7. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. Those skilled in the art will understand that these embodiments are only for illustrating the technical principles of the present invention, and do not limit the protection scope of the present invention.

[0020] In the description of the present invention, the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are for ease of description, and do not indicate or imply that the devices or elements referred to have a particular orientation and must be constructed and operated in a particular orientation, and therefore cannot be understood as limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, unless otherwise specified or limited, the terms "attaching", "installation", and "connection" should be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrally connected, may be directly connected, may be connected via an intermediate medium, or may be internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0022] In order to solve the technical problem that the inlet of the liquid storage case in the prior art does not have an effective filtering structure, and foreign matter is easily mixed in when detergent is added, causing clogging of the pipe, the present invention provides a filter structure 1. The filter structure 1 includes a primary filter body 1a having a relative distal end 1 and proximal end 1c, a bottom 13, a liquid addition port 11 located at the distal end 1b, and an annular side wall 12 extending from the bottom 13 to the distal end 1b, which is a tubular structure having primary filtering holes 124 formed in the bottom 13 and the annular side wall 12, and a secondary filter body 2a extending between the bottom 13 and the proximal end 1c and having secondary filtering holes 22 formed therein, such that the target liquid injected from the liquid addition port 11 can flow out from the secondary filter body 2a after being filtered by the primary filter body 1a. The filter structure 1 of the present invention is capable of filtering the target liquid twice; after the target liquid is injected through the liquid addition port 11, it can quickly permeate through the primary filtering holes 124; any foreign matter mixed in the target liquid can be primarily filtered as it flows through the bottom 13 of the primary filter body 1a and the primary filtering holes 124 on the annular side wall 12; after the target liquid permeates through the primary filtering holes 124, it quickly flows out through the secondary filtering holes 22, so that any foreign matter mixed in the target liquid can be secondarily filtered by the secondary filtering holes 22 of the secondary filter body 2a.

[0023] Unless otherwise specified, a "distal end" of a filter structure as referred to herein means the end closest to a user during use, whereas a "proximal end" of a filter structure as referred to herein means the end inserted into a liquid storage case during use. Unless otherwise specified, a "net structure" as referred to herein means a structure having a plurality of through holes or through channels that allows fluid to move from one side of the structure to the opposite side of the structure through the through holes or through channels. Unless otherwise specified, a "longitudinal direction" as referred to herein means the direction extending between the distal and proximal ends of the filter structure, and a "lateral direction" as referred to herein means the direction perpendicular to the longitudinal direction.

[0024] Fig. 1 is a schematic rear perspective view of one embodiment of the filter structure of the present invention. Fig. 2 is a schematic front perspective view of one embodiment of the filter structure of the present invention shown in Fig. 1. Fig. 3 is a schematic plan perspective view of one embodiment of the filter structure of the present invention shown in Fig. 1.

[0025] As shown in Figures 1 and 2, in one or more embodiments, the filter structure 1 of the present invention has relative distal and proximal ends 1b and 1c, and includes a primary filter body 1a, a secondary filter body 2a, a planar net structure 3a, and a handle 4a. In one or more embodiments, the filter structure 1 is formed by primary injection molding of polypropylene (PP plastic). Alternatively, the filter structure 1 may be made of other suitable thermoplastic resins, including but not limited to polyethylene, polyvinyl chloride, polypropylene, or polystyrene. The primary filter body 1a extends from the distal end 1b toward the proximal end 1c. The planar net structure 3a is located at the proximal end 1c, and the handle 4a is located at the distal end 1b. The handle 4a is directly connected to the primary filter body 1a and is integrally molded with the primary filter body 1a. Alternatively, the handle 4a may be made separately from the primary filter body 1a and then joined in a suitable manner, such as by welding. The secondary filter body 2a is positioned between the primary filter body 1a and the plate-like scoop structure 3a and is connected to both of them. Along the longitudinal direction of the filter structure 1, the secondary filter body 2a separates the primary filter body 1a from the plate-like scoop structure 3a.

[0026] In one or more embodiments, the connecting plates 6 are provided between the plate-shaped net structure 3a and the primary filter body 1a, so that a predetermined space is formed between the connecting plates 6. In this specification, the predetermined space may be referred to as a liquid refill space. On the one hand, the predetermined space can be used to collect and store the detergent that has permeated from the primary filter body 1a. When the detergent is extracted from the liquid storage case by the pump, the predetermined space can provide sufficient detergent, thereby avoiding air entrainment when the detergent flows out quickly. On the other hand, the predetermined space can store the viscous detergent that has been pushed aside to realize reuse. In one or more embodiments, the connecting plates 6 may be parallel to each other and separated by the same distance from each other. Alternatively, the connecting plates 6 may not be parallel to each other and may be separated by different distances from each other. In one or more embodiments, there are three connecting plates 6, each of which is one middle plate 61 and two side plates 62 located on both sides of the middle plate 61. Alternatively, the connecting plates 6 may adopt other suitable numbers, for example, one connecting plate or two connecting plates.

[0027] As shown in Figures 1 and 2, the primary filter body 1a has a cylindrical structure. In one or more embodiments, the primary filter body 1a has a straight cylindrical structure. Alternatively, the primary filter body 1a may have a truncated cone or cone-cylindrical structure.

[0028] As shown in FIG. 1 to FIG. 3, the cylindrical structure of the primary filter body 1a has a bottom 13, a liquid addition port 11 located at the distal end 1b, and an annular side wall 12 extending from the bottom 13 to the distal end 1b. In one or more embodiments, the annular side wall 12 has a three-step stepped cylindrical wall that is connected in sequence, which is a first stepped cylindrical wall 121, a second stepped cylindrical wall 122, and a third stepped cylindrical wall 123 along the direction from the distal end 1b to the proximal end 1c. The diameter of the three-step stepped cylindrical wall gradually decreases along the direction from the distal end 1b to the proximal end 1c. Alternatively, the annular side wall 12 may be an annular wall without steps, an annular wall with one step, an annular wall with two steps, or an annular wall with three or more steps. The liquid addition port 11 is located on the side of the first stepped cylindrical wall 121 located at the distal end 1b and is used to inject, for example, a detergent. In one or more embodiments, an outwardly protruding stopper ring 111 is provided at the position of the liquid addition port 11. In one or more embodiments, a hollow liquid level mark 112, such as hollow MAX letters, is provided at the bottom of the liquid addition port 11, so that after the target liquid is injected, the liquid level after the target liquid is added can be easily seen from the hollow. The third stepped cylindrical wall 123 is directly and integrally connected to the bottom 13, and the bottom 13 extends transversely to the annular side wall 12.

[0029] As shown in FIG. 1 to FIG. 3, a plurality of primary filtration holes 124 are formed in each of the annular side wall 12 and the bottom 13. On the annular side wall 12, the primary filtration holes 124 are partitioned by a plurality of horizontal separators 125 that are spaced apart from each other and extend in the horizontal direction, and vertical separators 126 that extend in the vertical direction and are spaced apart from each other, so that the primary filtration holes on the annular side wall 12 form a filtration grid for realizing primary filtration of detergent. In one or more embodiments, some of the vertical separators 126 protrude toward the vertical center of the filter structure 1 on the inner wall of the annular side wall 12 to form a reinforcing rib 127. This improves the structural strength of the filtration grid. Similarly, a plurality of primary filtration holes 124 are formed in the bottom 13, and are partitioned by the bottom horizontal separators 125' and the bottom reinforcing rib 127' to form a filtration grid. In one or more embodiments, 128 primary filter holes 124 are formed in the first stepped cylindrical wall 121, 90 primary filter holes 124 are formed in the second stepped cylindrical wall 122, 80 primary filter holes 124 are formed in the third stepped cylindrical wall 123, and 24 primary filter holes 124 are formed in the bottom 13. Therefore, the primary filter body 1a has a total of 322 primary filter holes, and thus can realize rapid penetration and rapid exhaust of detergent, and avoid overflow due to accumulation of washing liquid. Alternatively, the primary filter body 1a may have more or less than 322 primary filter holes 124. In one or more embodiments, the diameter of the primary filter holes 124 is in the range of 1.8 mm to 2 mm, and therefore can effectively block foreign matter with a diameter of 1.8 mm or more.

[0030] As shown in FIG. 3, in one or more embodiments, the secondary filter body 2a is an arc wall 21 extending from the outer edge of the plate-shaped net structure 3a toward the bottom 13. Alternatively, the secondary filter body 2a is formed as a straight wall or a wall of other suitable shape. A plurality of secondary filter holes 22 are formed in the arc wall 21. In one or more embodiments, the secondary filter holes 22 are arranged in two rows along the vertical direction. Optionally, one or more reinforcing ribs (not shown) may be formed on the inner side of the arc wall 21. In one or more embodiments, the connecting plate 6 extending between the bottom 13 of the primary filter body 1a and the plate-shaped net structure 3a both extend laterally to the secondary filter body 2a, where the two side plates 62 extend to the arc wall 21 side, and the middle plate 61 extends to the middle of the two rows of secondary filter holes 22. Thus, the connecting plate 6 also plays a supporting role for the secondary filter body 2a. In one or more embodiments, a first liquid refill port 51 is formed between the upper edge of the arc wall 21 and the outer edge of the bottom 13, and the first liquid refill port 51 is connected to the liquid refill space between the connecting plates 6 to facilitate rapid passage of detergent.

[0031] As shown in FIG. 2, in one or more embodiments, the flat-shaped net structure 3a located at the proximal end 1c has a substantially disk-shaped base plate 31 and a plurality of wastewater drainage grooves 32 formed in the base plate 31. The wastewater drainage grooves 32 are partitioned by a plurality of parallel partition bars, and the wastewater drainage grooves 32 penetrate the base plate 31, thus forming a webbing grid. Alternatively, the base plate 31 may adopt other shapes suitable for the liquid storage case. In one or more embodiments, one or more reinforcing ribs (not shown) are provided on the upper surface of the base plate 31 (i.e., the surface facing the bottom 13). These reinforcing ribs may be perpendicular to the partition bars to improve the structural strength of the webbing grid. As shown in FIG. 1, in one or more embodiments, a second liquid refill port 52 is formed above the flat-shaped net structure 3a and between each side plate 62 and the corresponding side edge of the secondary filter body 2a to allow the detergent to pass through quickly.

[0032] As shown in FIGS. 1 to 3, the handle 4a located at the distal end 1b extends outward and away from the end face of the liquid addition port 11, so that the upper end face 41 of the handle 4a is higher than the liquid addition port 11. In one or more embodiments, the end of the handle 4a away from the liquid addition port 11 is folded back 90 degrees outward to form a gripping portion 422 so that the user can easily apply force when lifting and pressing. In one or more embodiments, the handle 4a is provided with an oval gripping through-hole 43. When the user grips the handle 4a with his / her fingers, the gripping through-hole 43 can accommodate the pads of the fingers, making it easy for the user to lift it up.

[0033] During use, when the above filter structure 1 is used, detergent is injected through the liquid addition port 11, and then it quickly permeates through the primary filter holes 124, and foreign matter is primarily filtered as it passes through the annular side wall 12 and the bottom 13 of the primary filter body 1a. The detergent that has permeated and passed through further permeates through the secondary filter holes 22, and the foreign matter is secondary filtered as it passes through the secondary filter body 2a.

[0034] In an alternative embodiment, the filter arrangement 1 of the present invention includes a primary filter body 1a, a flat-shaped dipper structure 3a and a handle 4a, but omits the secondary filter body 2a, in which the arrangement of the primary filter body 1a, the flat-shaped dipper structure 3a and the handle 4a are all the same or similar to the previously described embodiment.

[0035] Figure 4 is a schematic oblique view of a liquid storage case in one embodiment of the liquid storage case assembly of the present invention, Figure 5 is a schematic cross-sectional view of the liquid storage case in one embodiment of the liquid storage case assembly of the present invention shown in Figure 4, Figure 6 is a schematic bottom view of the bottom cover of the liquid storage case in one embodiment of the liquid storage case assembly of the present invention shown in Figure 4, Figure 7 is a schematic cross-sectional view obtained by combining the bottom cover and filter structure of the liquid storage case in one embodiment of the liquid storage case assembly of the present invention and then cutting it in half along the AA cross-sectional line in Figure 6, and Figure 8 is a schematic enlarged view of point B in Figure 7.

[0036] As shown in Figs. 4-8, the present invention further provides a liquid storage case assembly 7, which includes a liquid storage case 7a and the filter structure 1 according to any of the above embodiments.

[0037] As shown in Figures 4 to 6, the liquid storage case 7a includes an upper lid 71 and a lower lid 72. When the upper lid 71 and the lower lid 72 are assembled relative to each other, a liquid storage tank is formed between the upper lid 71 and the lower lid 72. A detergent inlet 711 is formed in the upper lid 71. As shown in Figure 5, an inner bottom 721 of the liquid storage tank is provided in the lower lid 72. A liquid supply port 722 is provided on a side wall of the inner bottom 721 of the liquid storage tank. The detergent inlet 711 is connected to the liquid supply port 722. In one or more embodiments, the flow direction of the liquid supply port 722 is perpendicular to the axial direction of the liquid storage tank.

[0038] As shown in Fig. 7 and Fig. 8, the filter structure 1 is arranged to be insertable into the detergent inlet 711. Here, the secondary filter body 2a is matched with the liquid supply port 722 to ensure that the detergent flowing into the liquid supply port 722 first flows through the secondary filter body 2a, so that the detergent enters the liquid supply port 722 after being filtered by the primary filter body 1a and the secondary filter body 2a. As shown by the dashed line with arrows in Fig. 7, after the detergent is injected from the detergent inlet 711, the detergent permeates through the annular side wall 12 and bottom 13 of the primary filter body 1a through the primary filtering hole 124, and after being primarily filtered by the primary filter body 1a, the detergent quickly flows into a predetermined space through the primary filtering hole 124, the first liquid refill port 51, and the second liquid refill port 52, and is collected, and then filtered by the secondary filter body 2a before flowing out of the liquid supply port 722. The double filtration can effectively prevent foreign matter from entering the pipe and clogging the internal element. The predetermined space allows for sufficient detergent to be provided and avoids air entrapment when the detergent flows out quickly.

[0039] The upper surface of the inner bottom 721 of the liquid storage tank and the lower surface of the substrate 31 of the flat-shaped net structure 3a are bonded together, so that when the filter structure 1 is assembled to the liquid storage case 7a, there is no gap or the gap is very small between the upper surface of the inner bottom 721 of the liquid storage tank and the lower surface of the substrate 31 of the flat-shaped net structure 3a. If the upper surface of the inner bottom 721 of the liquid storage tank is a flat surface, the lower surface of the substrate 31 is also a flat surface. If the upper surface of the inner bottom 721 of the liquid storage tank is a circular arc surface, the lower surface of the substrate 31 is also a matching circular arc surface. When the detergent on the inner bottom 721 of the liquid storage tank becomes viscous, the filter structure 1 of the present invention can be repeatedly lifted and pressed by hand to use the flat-shaped net structure 3a to push aside the viscous detergent on the inner bottom 721 of the liquid storage tank and ensure the target liquid flow rate. The detergent that is pushed aside becomes smaller in size, and so flows into a designated space, or enters the liquid supply port 722 along with the detergent in the designated space, and participates in the washing again, or is blocked and filtered by the secondary filter body 2a, thereby preventing the pipeline from being clogged.

[0040] In one or more embodiments, a stopper mechanism (not shown) is provided at the detergent inlet 711 on the liquid storage case 7a. The stopper mechanism may match a stopper ring 111 at the liquid addition port 11. When the filter structure 1 is assembled to the liquid storage case 7a, the stop ring 111 further serves to support and fix the filter structure 1 to the detergent inlet 711.

[0041] The present invention further provides a washing apparatus (not shown), which includes the above-mentioned liquid storage case assembly 7. In one or more embodiments, the liquid storage case assembly 7 can be removably assembled to the washing apparatus. Alternatively, the liquid storage case assembly 7 can be integrally assembled to the washing apparatus.

[0042] Up to now, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but as those skilled in the art can easily understand, the protection scope of the present invention is obviously not limited to these specific embodiments. On the premise that it does not deviate from the principle of the present invention, those skilled in the art can make equivalent modifications or replacements to the relevant technical features, and all of the technical solutions after such modifications or replacements are included in the protection scope of the present invention. [Explanation of symbols]

[0043] 1...filter structure, 1a...primary filter body, 1b...distal end, 1c...proximal end, 11...liquid addition port, 111...stopper ring, 112...hollow liquid level mark, 12...annular side wall, 121...first stepped cylindrical wall, 122...second stepped cylindrical wall, 123, third stepped cylindrical wall, 124...primary filtration hole, 125...lateral separator, 125'...bottom lateral separator, 126...vertical separator, 127...reinforcing rib, 127'...bottom reinforcing rib, 13...bottom , 2a...secondary filter body, 21...arc wall, 22...secondary filtration hole, 3a...plate-shaped net structure, 31...base plate, 32...sewage drain groove, 4a...handle, 41...upper end surface, 42...grip portion, 43...grip through hole, 51...first liquid refill port, 52...second liquid refill port, 6...connecting plate, 61...middle plate, 62...side plate, 7...liquid storage case assembly, 7a...liquid storage case, 71...upper cover, 711...detergent injection port, 72...lower cover, 721...inner bottom of liquid storage tank, 722...liquid supply port.

Claims

1. having relative distal and proximal ends; a primary filter body having a cylindrical structure having a bottom, a liquid addition port located at the distal end, and an annular side wall extending from the bottom to the distal end, with primary filtration holes formed in the bottom and the annular side wall; a secondary filter body extending between the bottom and the proximal end and having a secondary filter hole formed therein, the secondary filter body allowing a target liquid poured through the liquid addition port to flow out of the secondary filter body after being filtered by the primary filter body; a planar dipper structure formed at the proximal end; The secondary filter body is an arc wall, and an opening for refilling liquid is formed between the arc wall and the bottom; A plurality of connecting plates separated from each other are provided between the primary filter body and the plate-shaped mesh structure, and a predetermined liquid refill space communicating with the opening is formed between the plurality of connecting plates. A filter structure characterized in that

2. The filter structure further includes a handle located at the distal end, the handle extending outwardly away from an end face of the liquid addition port.

2. A filter arrangement according to claim 1.

3. the annular side wall comprises a multi-step stepped cylindrical wall, the diameter of the multi-step stepped cylindrical wall gradually decreasing along a direction from the distal end to the proximal end; 2. A filter arrangement according to claim 1.

4. The annular side wall has a three-step stepped cylindrical wall.

4. A filter arrangement according to claim 3.

5. The distal end further includes a hollow level mark.

2. A filter arrangement according to claim 1.

6. a liquid storage case provided with a target liquid inlet and a liquid supply port communicating with the target liquid inlet; The filter structure according to any one of claims 1 to 4, further comprising: a filter structure insertably disposed in the target liquid inlet, the secondary filter body being fitted to the supply inlet, so that the target liquid is filtered by the primary filter body and the secondary filter body and then further enters the supply inlet.

1. A liquid storage case assembly comprising:

7. A liquid storage case assembly comprising the liquid storage case assembly of claim 6. A laundry device comprising:

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