Thread scrap filter assembly of washing equipment and washing equipment

Abstract

The invention discloses a lint filter assembly of washing equipment and the washing equipment. The lint filter assembly is characterized in that a rotating shaft is fixedly arranged on a filter element; a filter plate is arranged at the water inlet end of the filter element, a jet orifice with the caliber gradually reduced in the water flow direction is formed in the filter plate, and the caliber of the jet orifice is smaller than the size of hard foreign matter; a filter element blade is arranged on the side wall of the filter element, and at least two spiral shell blades are arranged on the side wall of the shell; when the filter element is driven by the rotating shaft to rotate, the filter element blade is in contact with the shell blade to form a contact area for cutting line scraps; the projection area of the contact area along the axis of the rotating shaft to the filter plate coincides with the jet orifice. Water flow passing through the jet orifice carries line scraps to impact the contact area of the filter element blade and the shell blade, the cutting efficiency and the cutting effect of the line scraps are improved, hard foreign matter such as buttons and coins are prevented from damaging the filter element blade and the shell blade, and failure of most shells made of plastic materials is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of washing equipment, and in particular relates to a wire scrap filter assembly of a washing equipment and the washing equipment. Background Art

[0002] The lint filter is a device located at the bottom of the front panel of the washing machine and in front of the drain pump. It is usually installed and used as a set with the drain pump. The lint filter can effectively filter and cut off the longer and larger lint in the discharged washing water, and prevent the longer and larger lint from being entangled on the impeller during the discharge process of the drain pump, which affects the drainage efficiency and increases the drainage noise.

[0003] Moreover, since the lint filter is directly connected to the outer drum of the washing equipment, it will suck in hard foreign objects such as buttons and coins at the same time as the lint, causing the filter port or filter net to be blocked, which increases the frequency of cleaning the lint filter and may cause damage to the structure of the lint filter used to cut off lint, and even cause failure, jamming and other malfunctions, causing great inconvenience to users.

[0004] Therefore, how to improve the cutting effect of wire scraps and prevent hard foreign objects such as buttons and coins from damaging the structure used to cut wire scraps is a technical problem that needs to be solved at present.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a lint filter assembly for a washing device and a washing device. A filter plate and a jet port are arranged at the water inlet end of the filter element, and the diameter of the jet port is gradually reduced, so that the flow rate of the lint carried by the water flow passing through the jet port is accelerated, the passing speed of the lint is accelerated, and the contact area between the filter element blade and the shell blade is impacted, thereby improving the cutting efficiency and cutting effect of the lint, and preventing hard foreign objects such as buttons and coins from damaging the filter element blade and the shell blade. The shell blade avoids the wear and failure of the shell, which is mostly made of plastic, and ensures the stable operation of the lint filter assembly.

[0007] The filter element is subjected to a greater driving force, making it easier to insert the rotating shaft on the filter element into the assembly hole, reducing the speed requirement of the drainage pump required to move the filter element, thereby reducing the energy consumption of the wire dust filter assembly and ensuring the stable operation of the wire dust filter assembly.

[0008] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0009] The present invention provides a lint filter assembly for a washing device, comprising:

[0010] shell;

[0011] A filter element is arranged in the housing and a rotating shaft is fixedly arranged on the filter element;

[0012] The water flow carrying the wire scraps passes through the filter element along the axial direction of the rotating shaft for filtration. A filter plate is arranged at the water inlet end of the filter element. The filter plate is provided with a jet port with a diameter gradually reduced along the water flow direction. The diameter of the jet port is smaller than the size of the hard foreign matter.

[0013] The filter element blade is arranged on the side wall of the filter element, and the side wall of the shell has at least two shell blades arranged in a spiral shape;

[0014] When the filter element is driven by the rotating shaft to rotate, the filter element blade contacts the housing blade to form a contact area for cutting wire scraps;

[0015] A projection area of ​​the contact area along the axis of the rotating shaft to the filter plate coincides with the injection port.

[0016] The present invention arranges a filter plate and a jet port at the water inlet end of the filter element, and the diameter of the jet port is gradually reduced, so that the flow rate of the wire chips carried by the water flow passing through the jet port is accelerated, the passing speed of the wire chips is accelerated, and the contact area between the filter element blade and the shell blade is impacted, thereby improving the cutting efficiency and cutting effect of the wire chips, and preventing hard foreign objects such as buttons and coins from damaging the filter element blade and the shell blade. The shell blade avoids the wear and failure of the shell, which is mostly made of plastic, and ensures the stable operation of the wire chip filter assembly.

[0017] A further solution of the present invention is: the side wall of the filter element comprises a first side wall and a second side wall, and a gap is provided between the first side wall and the second side wall;

[0018] The filter element blade comprises a first blade and a second blade;

[0019] The first blade and the second blade are symmetrically arranged along the rotation axis, and are respectively arranged at the notch end of the first side wall and the notch end of the second side wall;

[0020] The first blade is close to the surface of the notch end of the first side wall in terms of extension length, and the second blade is close to the surface of the notch end of the second side wall in terms of extension length;

[0021] The first blade and the second blade are completely in contact with the housing blade in their extending direction;

[0022] The projection areas of the first blade and the second blade along the axis of the rotating shaft to the filter plate coincide with the injection port.

[0023] In the above scheme, it is further achieved that the wire scraps that pass through the injection port and impact the contact area of ​​the first blade, the second blade and the outer shell blade can be fully cut off and will not hang on the side wall of the filter element, thereby improving the wire scrap cutting effect of the wire scrap filter.

[0024] A further solution of the present invention is that: the side wall of the housing has at least two spirally arranged ribs, and the housing blade is arranged on the surface of each rib facing the filter element blade;

[0025] Along the axial direction of the rotating shaft, the axial length of the housing blade is greater than the axial length of the first blade and the axial length of the second blade.

[0026] In the above solution, the convex rib and the outer shell are protected from being worn by arranging the outer shell blade on the convex rib.

[0027] A further solution of the present invention is that the lint filter assembly further includes a drainage pump;

[0028] The drainage pump has an output shaft coaxially arranged with the rotating shaft, and the output shaft is provided with a mounting hole opening toward the rotating shaft;

[0029] The rotating shaft can be inserted into the assembly hole along with the movement of the filter element, and cooperate with the circumferential limit of the assembly hole, so that the drainage pump drives the rotating shaft and the filter element to rotate;

[0030] The housing has a filter element cavity and a receiving cavity connected to each other, the filter element is movably arranged in the filter element cavity, and the receiving cavity is located on the side where the water inlet end of the filter element is located;

[0031] The side wall of the filter element cavity is connected to the side wall of the accommodating cavity, and the side wall of the filter element cavity gradually approaches the central axis of the filter element cavity along the water flow direction;

[0032] The filter element moves in the direction of the output shaft of the drainage pump, the side wall of the filter element cavity and the outer periphery of the filter plate are stopped and limited, and there is a gap between the end surface of the rotating shaft inserted into the assembly hole and the bottom surface of the assembly hole.

[0033] In the above solution, the side wall of the filter element cavity abuts against the filter plate, thereby ensuring the stability of the filter element rotation.

[0034] A further solution of the present invention is: a plurality of the injection ports are provided, and the plurality of injection ports are arranged in a plurality of circles with the rotating shaft as the center;

[0035] The projection area of ​​the housing blade along the axis of the rotating shaft to the filter plate at least partially overlaps with the injection ports of each circle.

[0036] In the above scheme, it is better achieved that when the filter element rotates, multiple injection ports can accelerate the flow rate of the water flow carrying the wire chips, impact the contact area between the filter element blade and the shell blade, and improve the wire chip filter's cutting efficiency for the wire chips.

[0037] A further solution of the present invention is that the side wall of the jet port gradually shrinks toward its central axis along the water flow direction;

[0038] An impeller is also arranged on the output shaft of the drainage pump;

[0039] The central axis of the injection port is parallel to the rotation shaft and the central axis of the impeller.

[0040] In the above scheme, the water flow carrying wire chips flowing toward the impeller through the injection port impacts the contact area between the filter element blade and the housing blade in a direction parallel to the central axis of the rotating shaft, and after being disturbed by the filter element blade, is attracted by the impeller and continues to flow in a direction parallel to the central axis of the connecting shaft, is cut off multiple times by the filter element blade and the housing blade, and flows toward the impeller.

[0041] A further solution of the present invention is: a water inlet communicating with the outside is provided at the top of the accommodating cavity, and a sink for collecting hard foreign matter is provided at the bottom of the accommodating cavity;

[0042] The projection area of ​​the trough onto the plane where the water inlet is located is not less than the opening area of ​​the water inlet.

[0043] In the above scheme, the hard foreign matter is separated and collected from the filter element by the accommodating cavity and the sink, thereby ensuring the stable operation of the lint filter assembly.

[0044] A further solution of the present invention is that: a mesh cover for separating hard foreign matter and water is arranged inside the sink, and the mesh cover and the sink are detachably arranged;

[0045] A detachable knob cover is arranged at one end of the accommodating cavity away from the filtering cavity.

[0046] In the above scheme, after removing the knob cover, the filter screen can be removed, which facilitates the removal of hard foreign matter collected in the screen cover from the lint filter assembly.

[0047] A further solution of the present invention is that the water outlet end of the injection port is flush with the surface of the filter plate.

[0048] In the above scheme, when the filter element rotates, the water outlet end of the injection port will not generate resistance due to the protrusion blocking the water flow.

[0049] The present invention also provides a washing device, which comprises the lint filter assembly of the washing device.

[0050] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0051] A filter plate and a jet port are arranged at the water inlet end of the filter element, and the diameter of the jet port is gradually reduced, so that the flow rate of the wire chips carried by the water flowing through the jet port is accelerated, the passing speed of the wire chips is accelerated, and the contact area between the filter element blade and the shell blade is impacted, thereby improving the cutting efficiency and cutting effect of the wire chips, and preventing hard foreign objects such as buttons and coins from damaging the filter element blade and the shell blade. The shell blade avoids the wear and failure of the ribs, which are mostly made of plastic, and ensures the stable operation of the wire chip filter assembly.

[0052] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0054] Figure 1 It is a structural schematic diagram of a lint filter assembly when the rotating shaft is separated from the assembly hole of the drainage pump according to an embodiment of the present invention;

[0055] Figure 2 yes Figure 1 Schematic diagram of the structure of the AA section;

[0056] Figure 3 It is a structural schematic diagram of the rotation shaft of the lint filter assembly of one embodiment of the present invention when it is matched with the assembly hole of the drainage pump;

[0057] Figure 4 is a schematic structural diagram of a lint filter assembly according to another embodiment of the present invention when the rotating shaft is separated from the assembly hole of the drain pump;

[0058] Figure 5 yes Figure 4 Schematic diagram of the structure of the BB section.

[0059] In the figure: 100-drain pump; 110-output shaft; 111-assembly hole; 120-motor; 130-impeller; 210-housing; 201-water inlet; 202-drain outlet; 203-convex rib; 211-impeller cavity; 212-transition cavity; 213-filter element cavity; 214-accommodation cavity; 220-filter element; 221-first end cover; 2211-water permeable hole; 222-second end cover; 223-side wall; 2231-first Side wall; 2232-second side wall; 224-filter element blade; 2241-first blade; 2242-second blade; 225-first magnetic member; 226-rotating shaft; 227-housing blade; 228-first thermal insulation layer; 230-knob cover; 231-extension cylinder; 232-second magnetic member; 233-second thermal insulation layer; 261-sinking groove; 262-net cover; 310-connecting shaft; 320-filter plate; 321-injection port.

[0060] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0062] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] like Figures 1 to 5As shown, the present invention provides a wire scrap filter assembly for washing equipment and a washing equipment, wherein a filter plate 320 and a jet port 321 are arranged at the water inlet end of a filter element 220, and the diameter of the jet port 321 is gradually reduced, so that the flow rate of the wire scraps carried by the water flow passing through the jet port 321 is accelerated, and the passing speed of the wire scraps is accelerated. As long as one end of the wire scraps enters the jet port 321, it can be sucked through the jet port 321 as a whole, and the wire scraps are prevented from gathering and clogging at the jet port 321. At the same time, the ejected wire scraps impact the contact area between the filter element blade 224 and the housing blade 227, thereby improving the cutting efficiency and cutting effect of the wire scraps, and preventing the damage of the filter element blade 224 and the housing blade 227 by hard foreign objects such as buttons and coins, and avoiding the wear and failure of the housing 210 and the rib 203, which are mostly made of plastic, through the housing blade 227, thereby ensuring the stable operation of the wire scrap filter assembly.

[0065] Embodiment 1

[0066] like Figures 1 to 3 As shown, this embodiment provides a lint filter assembly for a washing device, comprising: a housing 210; a filter element 220, which is arranged in the housing 210 and on which a rotating shaft 226 is fixedly arranged, and the filter element 220 is movable along the axial direction of the rotating shaft 226; a water flow carrying lint passes through the filter element 220 along the axial direction of the rotating shaft 226 for filtration, a filter plate 320 is arranged at the water inlet end of the filter element 220, and a jet port 321 with a diameter gradually reduced along the water flow direction is arranged on the filter plate 320, and the jet port 321 has a diameter gradually reduced along the water flow direction. 1 is smaller than the size of the hard foreign matter; a filter element blade 224 is provided on the side wall 223 of the filter element 220, and at least two spirally arranged shell blades 227 are provided on the side wall of the shell 210; when the filter element 220 is driven by the rotating shaft 226 to rotate, the filter element blade 224 contacts the shell blade 227 to form a contact area for cutting wire scraps; the projection area of ​​the contact area along the axis of the rotating shaft 226 to the filter plate 320 coincides with the injection port 321.

[0067] The filter plate 320 and the jet port 321 are arranged at the water inlet end of the filter element 220, and the diameter of the jet port 321 is gradually reduced, so that the flow rate of the wire scraps carried by the water flow passing through the jet port 321 is accelerated. As long as one end of the wire scraps enters the jet port 321, it can be sucked in as a whole and pass through the jet port 321, thereby preventing the wire scraps from gathering and clogging at the jet port 321. At the same time, the passing speed of the ejected wire scraps is accelerated, impacting the contact area between the filter element blade 224 and the shell blade 227, thereby improving the cutting efficiency and cutting effect of the wire scraps, and preventing the damage of the filter element blade 224 and the shell blade 227 by hard foreign objects such as buttons and coins, and avoiding the wear and failure of the rib 203, which is mostly made of plastic, through the shell blade 227, thereby ensuring the stable operation of the wire scrap filter assembly.

[0068] The size of the hard foreign matter is the size of a standard small button, about 12 mm, and the maximum diameter of the injection port 321 is smaller than 12 mm of a standard small button. Therefore, the injection port 321 can block hard foreign matter such as buttons and coins, prevent the hard foreign matter from causing damage to the inside of the filter element 220, and further ensure the stable operation of the lint filter assembly.

[0069] In this embodiment, the side wall 223 of the filter element 220 includes a first side wall 2231 and a second side wall 2232, and a gap is formed between the first side wall 2231 and the second side wall 2232; the filter element blade 224 includes a first blade 2241 and a second blade 2242; the first blade 2241 and the second blade 2242 are symmetrically arranged along the rotating shaft 226, and are respectively arranged at the gap end of the first side wall 2231 and the gap end of the second side wall 2232; the first blade 2241 is close to the extension length of the surface of the gap end of the first side wall 2231, and the second blade 2242 is close to the gap end of the first side wall 2231. The extension length of the surface of the notch end of the second side wall 2232 is close; when the filter element 220 moves to the left as a whole, the first blade 2241 and the second blade 2242 contact the outer shell blade 227 at least at one point in their extension direction, and when the filter element 220 rotates, the contact points of the first blade 2241 and the second blade 2242 with the outer shell blade 227 in their extension direction continuously change in a cycle, forming an effect similar to scissors shearing; the projection area of ​​the first blade 2241 and the second blade 2242 along the axis of the rotating shaft 226 to the filter plate 320 coincides with the coverage area of ​​the injection port 321.

[0070] In this way, the wire scraps that pass through the injection port 321 and impact the contact area of ​​the first blade 2241, the second blade 2242 and the outer shell blade 227 are hung on the above-mentioned blade joint point, and can be fully cut off when the filter element 220 rotates, and will not be hung on the side wall 223 of the filter element 220.

[0071] In this embodiment, at least two spirally arranged ribs 203 are provided on the side wall of the housing 210 , and the housing blade 227 is provided on the surface of each rib 203 facing the filter element blade 224 .

[0072] By providing the housing blade 227 on the convex rib 203 , the convex rib 203 and the housing 210 are protected from being worn, and a scissor-like structure is formed with the filter element blade 224 .

[0073] In this embodiment, the lint filter assembly further includes a drain pump 100; the drain pump 100 has an output shaft 110 coaxially arranged with the rotating shaft 226, and the output shaft 110 is provided with an assembly hole 111 opening toward the rotating shaft 226; the rotating shaft 226 can be inserted into the assembly hole 111 along with the movement of the filter element 220, and cooperate with the circumferential limit of the assembly hole 111, so that the drain pump 100 drives the rotating shaft 226 and the filter element 220 to rotate; the housing 210 has a filter element cavity 213 and a receiving cavity 214 connected to each other, and the filter element 220 is provided with a filter element cavity 214, and the filter element 220 is provided with a filter element cavity 213 and a receiving cavity 214 connected to each other. 0 can be movably arranged in the filter element cavity 213, the accommodating cavity 214 is located on the side where the water inlet end of the filter element 220 is located; the side wall of the filter element cavity 213 is connected to the side wall of the accommodating cavity 214, and the side wall of the filter element cavity 213 gradually approaches the central axis of the filter element cavity 213 along the water flow direction; the filter element 220 can move in the direction where the output shaft 110 of the drainage pump 100 is located, the side wall of the filter element cavity 213 and the outer periphery of the filter plate 320 are stopped and limited, and there is a gap between the end surface of the rotating shaft 226 inserted into the assembly hole 111 and the bottom surface of the assembly hole 111. Figure 3 As shown, when the rotating shaft 226 is inserted into the assembly hole 111, the filter element 220 is completely located in the filter element cavity 213. Figure 1 As shown, when the rotating shaft 226 is separated from the assembly hole 111 , the filter plate 320 of the filter element 220 is located in the accommodating cavity 214 .

[0074] The side wall of the filter element cavity 213 abuts against the filter plate 320 , thereby ensuring the stability of the rotation of the filter element 220 and preventing foreign matter other than wire scraps from entering the filter element cavity 213 due to excessive clearance.

[0075] In this embodiment, a plurality of the jet ports 321 are provided, and the plurality of jet ports 321 are arranged in a plurality of circles with the rotating shaft 226 as the center; the projection area of ​​the outer shell blade 227 along the axis of the rotating shaft 226 to the filter plate 320 at least partially overlaps with the jet ports 321 of each circle. The projection areas of the first blade 2241 and the second blade 2242 along the axis of the rotating shaft 226 to the filter plate 320 overlap with the jet ports 321 of each circle.

[0076] The above arrangement better realizes that when the filter element 220 rotates, the multiple injection ports 321 can accelerate the flow rate of the water flow carrying the wire scraps, impacting the contact area between the filter element blade 224 and the housing blade 227, thereby improving the wire scrap cutting efficiency of the wire scrap filter.

[0077] In this embodiment, the side wall of the jet port 321 gradually shrinks toward the central axis thereof along the water flow direction; an impeller 130 is also provided on the output shaft 110 of the drainage pump 100; and the central axis of the jet port 321 is parallel to the central axis of the rotating shaft 226 and the impeller 130. The water flow carrying the wire scraps flowing to the impeller 130 through the jet port 321 impacts the contact area between the filter element blade 224 and the housing blade 227 along the direction parallel to the central axis of the connecting shaft 310, and after being disturbed by the filter element blade 224, is attracted by the impeller 130, and continues to flow along the direction parallel to the central axis of the rotating shaft 226, is cut off by the filter element blade 224 and the housing blade 227 for many times, and flows to the impeller 130, thereby improving the wire scrap cutting efficiency of the wire scrap filter.

[0078] In this embodiment, the rotating shaft 226 is fixed to the surface of one side of the filter plate 320 facing the direction of the output shaft 110, and the other side surface of the filter plate 320 is fixedly connected to the connecting shaft 310, and the first magnetic member 225 is arranged on the connecting shaft 310, and the side wall of the accommodating cavity 214 is provided with a knob cover 230, and the knob cover 230 is provided with a second magnetic member 232, and there is a magnetic attraction between the first magnetic member 225 and the second magnetic member 232; the side wall of the injection port 321 gradually shrinks toward its central axis along the direction of water flow; the central axis of the injection port 321 is parallel to the central axis of the connecting shaft 310.

[0079] In this embodiment, Figure 1 and 2 As shown, a filter blade 224 is provided on the side wall 223 of the filter element 220, and the side wall of the housing 210 has at least two spirally arranged ribs 203; when the filter element 220 rotates, the filter blade 224 contacts the housing blade 227 to cut wire scraps; the area of ​​the filter blade 224 projected on the filter plate 320 along the water flow direction at least partially overlaps with the injection port 321. Specifically, as Figure 3 As shown, two ribs 203 are arranged on the side wall of the housing 210 in the vertical direction and the horizontal direction respectively, and the protrusions of the four ribs 203 are all spiral, so that the housing blade 227 arranged on the surface of the rib 203 facing the filter element blade 224 is spiral.

[0080] The wire scraps are carried by the water flow through the injection port 321 and impact the position where the filter element blade 224 and the housing blade 227 abut against each other, thereby improving the cutting efficiency and cutting effect of the filter element blade 224 and the housing blade 227 on the wire scraps.

[0081] In this embodiment, a water inlet 201 connected to the outside is provided at the top of the accommodating cavity 214, and a trough 261 for collecting hard foreign objects is provided at the bottom of the accommodating cavity 214; the projection area of ​​the trough 261 to the plane where the water inlet 201 is located is not less than the opening area of ​​the water inlet 201.

[0082] The accommodating chamber 214 and the sink 261 are used to separate and collect hard foreign matter from the filter element 220, thereby ensuring the stable operation of the lint filter assembly.

[0083] The hard foreign matter described in this embodiment includes buttons, coins, etc. When the washing equipment is mostly an upper drainage structure, there will usually be 400-600 ml of sewage remaining in the lint filter. In order to prevent the sewage from spilling on the ground, it needs to be released in advance, which further increases the complexity of cleaning the lint filter and further causes inconvenience to the user. In addition, since the lint filter is directly connected to the outer cylinder of the washing equipment, it will suck in hard foreign matter such as buttons and coins while sucking in the lint, causing the filter port or filter net to be blocked, and increasing the cleaning frequency of the lint filter, causing great inconvenience to the user.

[0084] Therefore, in this embodiment, a mesh cover 262 for separating hard foreign matter and water is disposed inside the sink 261, and the mesh cover 262 and the sink 261 are detachably disposed; a detachable knob cover 230 is disposed on the side wall of the accommodating chamber 214. After the knob cover 230 is disassembled, the filter screen is disassembled, so that the hard foreign matter collected in the mesh cover 262 is conveniently removed from the lint filter assembly.

[0085] In this embodiment, the specific structure of the lint filter assembly is as follows: a receiving chamber 214, a filter element chamber 213, a transition chamber 212, an impeller chamber 211 and a drainage pump 100 are sequentially arranged in the filter housing 210 along the water flow direction.

[0086] Specifically, a sink 261 is provided at the bottom of the accommodating chamber 214, and the sink 261 can accommodate hard foreign objects such as buttons and coins to prevent the hard foreign objects from blocking the water flow and slowing down the speed of the water flow. The outside of the water inlet 201 provided at the top of the accommodating chamber 214 is connected to the outer drum of the washing machine through a corrugated pipe.

[0087] Specifically, an opening is provided on the side wall of the accommodating chamber 214 away from the filter element 220, and a knob cover 230 is detachably installed in the opening. The knob cover 230 is connected to the housing 210 by a thread, and an extension tube 231 is connected to the knob cover 230. The second magnetic member 232 is arranged in the extension tube 231. Since the user discharges hot water when using the drum cleaning, boiling and washing procedures of the washing machine, in order to prevent the second magnetic member 232 from being ineffective due to heat, the second heat insulation layer 233 is provided on the outside of the second magnetic member 232 in this embodiment. The second heat insulation layer 233 completely covers the second magnetic member 232, thereby preventing the second magnetic member 232 from contacting with hot water, thereby preventing the magnetic member from being ineffective due to heat, and also playing the role of rust prevention and shock absorption. More specifically, the knob cover 230 is an end cover that blocks the right side of the wire dust filter housing 210, and a knob is provided on the outside. The first magnetic member 225 and the second magnetic member 232, one of which is a magnetic block, the magnetic block includes an iron block, a cobalt block, a nickel block or a magnetic metal alloy block, and the other is a magnet or an electromagnet, or the first magnetic member 225 and the second magnetic member 232 are both magnets or electromagnets to generate magnetic attraction.

[0088] Specifically, a filter element 220 is arranged in the filter element cavity 213. The shape of the filter element cavity 213 is adapted to the rotary profile of the outer shape of the filter element 220, and both are truncated. The plurality of convex ribs 203 are all located on the inner wall of the filter element cavity 213. The convex rib 203 and the outer shell blade 227 extend in a spiral direction, and the spiral direction is the same as the direction in which the drain pump 100 drives the filter element 220 to rotate, so that when the filter element 220 rotates, the convex rib 203 and the filter element blade 224 on the filter element 220 jointly realize a "scissor-type" structure to cut larger wire scraps into pieces so that they can be discharged by the drain pump 100 through the filter structure of the filter element. Further, the outer shell 210 and the convex rib 203 are made of conventional plastic material, and the outer shell blade 227 is made of heat-treated stainless steel. The outer shell blade 227 is embedded in the convex rib 203, and forms a "scissor-type" structure with the filter element blade 224 to enhance the cutting effect and extend the service life of the convex rib 203.

[0089] The outlet end of the filter element 220 is provided with a first end cap 221, which can be gap-matched with the transition chamber 212. When the filter element 220 rotates, the transition chamber 212 can also provide support for the filter element 220. The first end cap 221 is provided with a water-permeable hole 2211 for the chopped wire scraps to pass through.

[0090] Specifically, Figure 1 and 2As shown, the filter plate 320 at the water inlet end of the filter element 220 is circular. There are two symmetrically arranged side walls 223 between the first end cover 221 and the filter plate 320. The side block is a part of the truncated cone shell surface of the filter element 220, one side of which is provided with a single filter element blade 224, and the other side block is provided with a single filter element blade 224 at an axisymmetric position. The filter element blades 224 on the two side walls 223 are respectively the first blade 2241 and the second blade 2242, and the tracks they sweep overlap, that is, the side of the two side walls 223 where the filter element blades 224 are provided is the side facing the water when the motor 120 rotates. Spline grooves are provided on the end cover of the filter element 220 and the center of the filter plate 320, and one end of the rotating shaft 226 is a spline shaft, which passes through the spline groove and is fixed thereto.

[0091] Specifically, the transition chamber 212 is a chamber connecting the impeller chamber 211 and the filter element chamber 213, which cooperates with the first end face of the filter element 220 to filter the wire scraps, and can also support the first end face when the filter element 220 rotates. The diameter of the transition chamber 212 is smaller than the diameter of the impeller chamber 211 and the diameter of the filter element chamber 213.

[0092] Specifically, the drainage pump 100 further includes a motor 120 and an impeller 130, wherein the impeller 130 has a plurality of blades, the motor 120 is connected to the output shaft 110 and is located outside the housing 210, and the impeller 130 is sleeved on the output shaft 110 and is disposed in an impeller chamber 211. The axis of the drainage port 202 in the impeller chamber 211 is perpendicular to the axis of the water inlet 201.

[0093] In this embodiment, the working process of the filter plate 320 and the sink 261 is as follows: before the last dehydration step of each washing procedure, the rotation speed of the drain pump 100 is set to be higher than the normal rotation speed, and the water flow in the filter element 220 is increased, so that when the water flows through the injection port 321 of the filter plate 320, due to the Bernoulli effect of fluid mechanics, the water flow velocity at the water inlet of the injection port 321 is lower than the water flow velocity at the water outlet, and the force at the water inlet is greater than the force at the water outlet, and turbulence is generated when the water flows to the injection port 321. The water flows and impacts the filter plate 320, and when it flows out of the water-permeable hole 2211, it impacts the first end cover 221, and then pushes the filter element 220, so that the filter element 220 moves to the side wall of the filter plate 320 and the filter element cavity 213. At this time, the rotating shaft 226 is inserted into the assembly hole 111 and fixedly connected with the assembly hole 111, and then rotates with the output shaft 110 of the drainage pump 100 provided with the assembly hole 111, driving the filter element 220 to rotate, so that the outer shell blade 227 and the filter element blade 224 cut the wire scraps in a "scissor-like" manner. Furthermore, the water flow accelerated by the injection port 321 can better send the wire scraps to the position where the outer shell blade 227 and the filter element blade 224 abut, thereby improving the cutting rate of the wire scraps per unit time, and improving the cutting efficiency and cutting effect of the wire scraps. In addition, at this time, hard foreign objects such as buttons and coins are carried by the water flow into the accommodating chamber 214 from the water inlet 201. Among them, hard foreign objects with larger mass will directly fall into the mesh cover 262 of the trough 261. Even if the hard foreign objects are blocked at the injection port 321, the rotation of the filter element 220 will throw the hard foreign objects away from the filter element 220 and then fall into the mesh cover 262 of the trough 261.

[0094] When the rotation speed of the drain pump 100 is less than or equal to the normal rotation speed, since the driving force of the water flow impacting the filter element 220 is less than the magnetic attraction generated by the first magnetic part 225 and the second magnetic part 232, the filter element 220 moves away from the drain pump 100, the rotating shaft 226 is separated from the assembly hole 111, and the filter element 220 does not rotate. At this time, hard foreign objects such as buttons and coins will still fall directly into the mesh cover 262 of the trough 261.

[0095] In this embodiment, since hard foreign objects such as buttons and coins rarely enter the lint filter assembly, there is no need for the user to clean it specifically. Only when the washing equipment needs to be maintained, or when after-sales personnel come to the customer's site, the mesh cover 262 in the trough 261 can be removed. The specific disassembly and assembly process is as follows: after loosening the knob cover 230, when pulling out the filter element 220, the mesh cover 262 together with the hard foreign objects caught by the mesh cover 262 will be pulled out together, and the hard foreign objects can be cleaned up at one time; when installing, separate the filter element 220 from the knob cover 230, first insert the filter element 220, then put in the mesh cover 262, and finally screw on the knob cover 230. After the knob cover 230 is rotated into place, the magnet will absorb the filter element 220 back.

[0096] Embodiment 2

[0097] like Figure 4 and 5 As shown, this embodiment provides a lint filter assembly for a washing device based on the first embodiment. The difference between this embodiment and the lint filter assembly described in the first embodiment is that the water outlet end of the injection port 321 is flush with the surface of the filter plate 320 .

[0098] When the filter element 220 rotates, the water outlet end of the injection port 321 will not generate resistance due to the protrusion stirring the water flow, further reducing the energy consumption required by the drainage pump 100 to rotate the water pump filter element 220.

[0099] Embodiment 3

[0100] like Figures 1 to 5 As shown, this embodiment provides a washing device based on the first and second embodiments, and the washing device includes the lint filter assembly of the washing device.

[0101] The outer drum of the washing device is connected to the lint filter assembly through a bellows.

[0102] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A lint filter assembly for a washing device, characterized in that: include: shell; A filter element is arranged in the housing and a rotating shaft is fixedly arranged on the filter element; The water flow carrying the wire scraps passes through the filter element along the axial direction of the rotating shaft for filtration. A filter plate is arranged at the water inlet end of the filter element. The filter plate is provided with a jet port with a diameter gradually reduced along the water flow direction. The diameter of the jet port is smaller than the size of the hard foreign matter. The filter element blade is arranged on the side wall of the filter element, and the side wall of the shell has at least two shell blades arranged in a spiral shape; When the filter element is driven by the rotating shaft to rotate, the filter element blade contacts the housing blade to form a contact area for cutting wire scraps; A projection area of ​​the contact area along the axis of the rotating shaft to the filter plate coincides with the injection port.

2. A lint filter assembly for a washing device according to claim 1, characterized in that: The side wall of the filter element comprises a first side wall and a second side wall, and a gap is formed between the first side wall and the second side wall; The filter element blade comprises a first blade and a second blade; The first blade and the second blade are symmetrically arranged along the rotation axis, and are respectively arranged at the notch end of the first side wall and the notch end of the second side wall; The first blade is close to the surface of the notch end of the first side wall in terms of extension length, and the second blade is close to the surface of the notch end of the second side wall in terms of extension length; The first blade and the second blade are completely in contact with the housing blade in their extending direction; The projection areas of the first blade and the second blade along the axis of the rotating shaft to the filter plate coincide with the injection port.

3. A lint filter assembly for a washing device according to claim 2, characterized in that: The side wall of the housing has at least two spirally arranged convex ribs, and the housing blade is arranged on the surface of each convex rib facing the filter element blade; Along the axial direction of the rotating shaft, the axial length of the housing blade is greater than the axial length of the first blade and the axial length of the second blade.

4. A lint filter assembly for a washing device according to claim 1, characterized in that: The lint filter assembly also includes a drain pump; The drainage pump has an output shaft coaxially arranged with the rotating shaft, and the output shaft is provided with a mounting hole opening toward the rotating shaft; The rotating shaft can be inserted into the assembly hole along with the movement of the filter element, and cooperate with the circumferential limit of the assembly hole, so that the drainage pump drives the rotating shaft and the filter element to rotate; The housing has a filter element cavity and a receiving cavity connected to each other, the filter element is movably arranged in the filter element cavity, and the receiving cavity is located on the side where the water inlet end of the filter element is located; The side wall of the filter element cavity is connected to the side wall of the accommodating cavity, and the side wall of the filter element cavity gradually approaches the central axis of the filter element cavity along the water flow direction; The filter element moves in the direction of the output shaft of the drainage pump, the side wall of the filter element cavity and the outer periphery of the filter plate are stopped and limited, and there is a gap between the end surface of the rotating shaft inserted into the assembly hole and the bottom surface of the assembly hole.

5. A lint filter assembly for a washing device according to claim 4, characterized in that: The plurality of injection ports are provided, and the plurality of injection ports are arranged in a plurality of circles with the rotating shaft as the center; The projection area of ​​the housing blade along the axis of the rotating shaft to the filter plate at least partially overlaps with the injection ports of each circle.

6. A lint filter assembly for a washing device according to claim 5, characterized in that: The side wall of the jet port gradually shrinks toward its central axis along the water flow direction; An impeller is also arranged on the output shaft of the drainage pump; The central axis of the injection port is parallel to the rotation shaft and the central axis of the impeller.

7. A lint filter assembly for a washing device according to claim 4, characterized in that: The top of the accommodating cavity is provided with a water inlet connected to the outside, and the bottom of the accommodating cavity is provided with a sink for collecting hard foreign matter; The projection area of ​​the trough onto the plane where the water inlet is located is not less than the opening area of ​​the water inlet.

8. A lint filter assembly for a washing device according to claim 7, characterized in that: A mesh cover for separating hard foreign matter and water is arranged inside the sink, and the mesh cover and the sink are detachably arranged; A detachable knob cover is arranged at one end of the accommodating cavity away from the filtering cavity.

9. A lint filter assembly for a washing device according to any one of claims 1 to 8, characterized in that: The water outlet end of the injection port is flush with the surface of the filter plate.

10. A washing device, characterized in that: The washing device comprises a lint filter assembly of the washing device according to any one of claims 1 to 9.

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