CN215856829U - Filter equipment and washing equipment - Google Patents

Abstract

The utility model relates to the technical field of household appliances, a filter equipment and washing equipment is provided, filter equipment includes return water board, filter assembly and backflow prevention structure, the return water board set up in on the interior circumference lateral wall of washing equipment's inner tube, the return water board is formed with the water inlet, filter assembly detachably install in on the return water board, filter assembly with return water board cooperates jointly and forms the filter chamber, the water inlet with the filter chamber intercommunication, filter assembly is formed with the delivery port, backflow prevention structure is located the downside of water inlet just set up in on the return water board, the filter equipment that this application provided, the filter screen filters the flock, and the flock is retained in the filter chamber, and the collection effect is reliable.

Description

Filter equipment and washing equipment

Technical Field

The application relates to the technical field of household appliances, in particular to a filtering device and washing equipment.

Background

In order to achieve the effect of cleaning clothes, a filtering device is arranged in an inner barrel of the washing machine and is used for collecting the flock generated by the clothes in the washing process, so that the flock is prevented from being adhered to the clothes or remaining in the inner barrel and being difficult to discharge, and secondary pollution is caused to the clothes. The filtering device is usually filtered by a mesh bag, and the mesh bag is installed to be smooth so as to prevent the space for containing the flock from being reduced due to the folding of the mesh bag, and the mesh bag can be turned outwards and reversely arranged, so that the effect of collecting the flock is greatly reduced and even fails.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a filter device and a washing apparatus with high reliability of collecting lint.

To achieve the above object, an aspect of the embodiments of the present application provides a filtering apparatus for a washing device, including:

the water return plate is arranged on the inner peripheral side wall of the inner barrel of the washing equipment and is provided with a water inlet;

the filter assembly is detachably arranged on the water return plate, the filter assembly and the water return plate are matched together to form a filter cavity, the water inlet is communicated with the filter cavity, and a water outlet is formed in the filter assembly; and

and the backflow preventing structure is arranged on the water return plate and is positioned at the lower side of the water inlet.

In some embodiments, the height of the water outlet is no greater than the height of the water inlet.

In some embodiments, the water return plate cooperates with the inner peripheral sidewall of the inner barrel to form a water inlet channel, and a bottom of the water return plate is spaced from the inner surface of the inner barrel to communicate with the washing space of the inner barrel.

In some embodiments, the filter assembly comprises:

the cover shell is detachably arranged on the water return plate, and the side wall of the cover shell is provided with the water outlet; and

and the cover plate is positioned between the housing and the water return plate and is movably connected with the housing.

In some embodiments, the cover plate is located at a bottom side of the backflow prevention structure in a height direction of the filter device.

In some embodiments, a flange is formed at the top of the cover plate, the flange abuts against the side of the water return plate facing the housing, the filter device includes a partition plate disposed on the side of the housing facing the water return plate, the partition plate is located at the bottom side of the cover plate in the height direction of the filter device, and the partition plate abuts against the side of the water return plate facing the housing.

In some embodiments, a side surface of the water return plate facing the housing is formed with a step surface and an open groove, the step surface is located at a bottom side of the backflow preventing structure, the open groove is located at the bottom side of the water return plate, a bottom surface of the flange abuts against the step surface, the partition plate is inserted into the open groove, and the partition plate abuts against an inner surface of the open groove.

In some embodiments, the cover plate comprises a plate body rotatably connected with the housing and a bottom plate located at the bottom of the plate body, the bottom plate is arranged on the side surface of the plate body facing the housing, and the plate body, the bottom plate and the housing together enclose a flock holding cavity.

In some embodiments, the floor is wavy.

In some embodiments, one of the cover plate and the housing is formed with a protrusion, and the other of the cover plate and the housing is formed with a recess, the protrusion snapping into the recess.

In some embodiments, the backflow prevention structure comprises a plurality of backflow prevention units, and the backflow prevention units are arranged in a staggered manner.

In some embodiments, the backflow prevention unit comprises two mutually connected straight slope surfaces, the two straight slope surfaces are butted to form a tip, the tip is arranged towards the water inlet, and the straight slope surfaces are arranged in an extending manner towards one side far away from the water inlet.

In some embodiments, the length of the backflow prevention unit is gradually reduced from the bottom layer to the top layer.

Another aspect of the embodiments of the present application provides a washing apparatus, including:

an outer tub;

an inner tub rotatably disposed in the outer tub, the inner tub having a washing space; and

the filter device of any one of the above claims, wherein the filter device is located in the washing space, and the water return plate is disposed on an inner peripheral side wall of the inner cylinder.

The filter equipment that this application embodiment provided, the rivers in washing space get into the back from the water inlet, flow through anti-return structure and get into the filter chamber, and the rivers after the filtration flow back to the washing space through the delivery port, so, realize the filtration cycle of rivers. On the one hand, filter equipment filters the flock, and the flock is retained in the filter chamber, and the flock of filter chamber constantly stirs and assaults down at rivers, and the flock can be along with rivers up-and-down motion, and backflow prevention structure can be with the flock backstop of backward flow in the filter chamber, so, avoids the flock to a certain extent to flow back to the washing space again through the water inlet under the water wave strikes in, has improved the reliability that filter equipment's flock was collected. On the other hand, when the flock in the filter cavity needs to be cleaned, the filter assembly can be detached for cleaning, and the backflow preventing structure is arranged on the water returning plate, namely, the backflow preventing structure cannot be detached along with the filter assembly, so that the filter assembly can be prevented from being cleaned, the backflow preventing structure scratches a user, and therefore the flock can be cleaned conveniently, conveniently and easily, and the operation is simple.

Drawings

FIG. 1 is a schematic structural diagram of a washing apparatus according to an embodiment of the present disclosure;

FIG. 2 is a partial cross-sectional view of the structure shown in FIG. 1, wherein the dashed arrows schematically illustrate the direction of water flow;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is an enlarged view of FIG. 2 at B;

FIG. 5 is a schematic structural diagram of a water returning plate according to an embodiment of the present application;

FIG. 6 is a schematic diagram of the structure of FIG. 5 from another perspective;

FIG. 7 is a schematic diagram of the structure of FIG. 5 from yet another perspective;

FIG. 8 is a schematic structural view of a filter assembly according to an embodiment of the present disclosure, wherein the cover plate is in a closed state;

FIG. 9 is a schematic diagram of the structure of FIG. 8 from another perspective;

FIG. 10 is a cross-sectional view taken along line C-C of FIG. 8;

FIG. 11 is a schematic view of a housing according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a cover plate in an embodiment of the present application.

Description of the reference numerals

A filter device 100; a filter chamber 100 a; a backwater plate 110; a water inlet 110 a; a step surface 110 b; an open groove 110 c; a stopper groove 110 d; a plug groove 110 e; a bar 111; a second clamping rib 112; a filter assembly 120; a water outlet 120 a; a lint containing chamber 120 b; a housing 121; the grooves 121 a; shaft hole 121 b; a limiting rib 1211; a cover plate 122; a flange 1221; a plate body 1222; a rotating shaft 12221; a base plate 1223; projections 1224; an insertion rib 123; a first clamping rib 124; a backflow prevention structure 130; a backflow prevention unit 131; a straight slope 1311; a partition 140; bending the ribs 150; the anti-slip strips 160; an inner barrel 200; the washing space 200 a; an inlet flow passage 1 a.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

In the description of the embodiments of the present application, the "top", "bottom", "height" orientation or positional relationship is the orientation or positional relationship in which the filter device and the washing apparatus are normally used, for example, the orientation or positional relationship shown in fig. 2, it being understood that these orientation terms are merely for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting to the present application.

Referring to fig. 1 and 2, in one aspect, the present invention provides a filter device for a washing apparatus, the filter device 100 includes a water return plate 110, a filter assembly 120, and a backflow prevention structure 130, the water return plate 110 is disposed on an inner circumferential sidewall of an inner tub 200 of the washing apparatus, the water return plate 110 is formed with a water inlet 110a, and the water inlet 110a is communicated with a washing space 200a of the inner tub 200. The filter assembly 120 is detachably installed on the backwater plate 110, the filter assembly 120 cooperates with the backwater plate 110 to form a filter chamber 100a, the water inlet 110a communicates with the filter chamber 100a, the filter assembly 120 is formed with a water outlet 120a, and the water outlet 120a communicates with the filter chamber 100a and the washing space 200 a. The backflow preventing structure 130 is located at a lower side of the water inlet 110a and is disposed above the water returning plate 110. The water flow from the water inlet 110a can enter the filter chamber 100a through the backflow preventing structure 130, and the backflow preventing structure 130 can prevent the lint in the filter chamber 100a from flowing backward to the water inlet 110 a.

In the filtering apparatus 100 provided in the embodiment of the present application, after entering from the water inlet 110a, the water flow of the washing space 200a flows through the backflow preventing structure 130 and enters into the filtering cavity 100a, and the filtered water flow flows back to the washing space 200a through the water outlet 120a, so as to implement a filtering cycle of the water flow. On the one hand, filter equipment filters the flock, and the flock is retained in filter chamber 100a, and the flock in filter chamber 100a constantly stirs and strikes under rivers, and the flock can be along with rivers up-and-down motion, and backflow-preventing structure 130 can end the flock of backward flow in filter chamber 100a, so, avoids the flock to flow back again to washing space 200a through water inlet 110a under the water wave strikes to a certain extent, has improved the reliability that filter equipment 100's flock was collected. On the other hand, when the lint in the filter chamber 100a needs to be cleaned, the filter assembly 120 can be detached for cleaning, since the backflow preventing structure 130 is disposed on the water return plate 110, that is, the backflow preventing structure 130 is not detached along with the filter assembly 120, which can prevent the backflow preventing structure 130 from scratching a user when the filter assembly 120 is cleaned, thereby facilitating the cleaning of the lint conveniently and easily, and having simple operation.

The specific structure shape of the water outlet 120a is not limited, and for example, in one embodiment, referring to fig. 8, the water outlet 120a is configured as a plurality of through holes. For example, the plurality of through holes may be arranged in a matrix.

In one embodiment, the filtering device includes a filter net, which is located in the filtering chamber 100c and covers the water outlet 120 a. Therefore, the flock in the washing space 200a is prevented from entering the filter cavity 100a through the water outlet 120a, and the water flow in the filter cavity 100a is convenient to flow out from the water outlet 120a after being filtered by the filter screen.

Referring to fig. 1, the washing apparatus includes an outer tub, an inner tub 200 and the filtering device 100 of any embodiment of the present disclosure, the inner tub 200 is rotatably disposed in the outer tub, the inner tub 200 has a washing space 200a, the filtering device 100 is disposed in the washing space 200a, and the water returning plate 110 is disposed on an inner peripheral sidewall of the inner tub 200.

According to the washing equipment provided by the embodiment of the application, in the washing and/or dewatering process, water flow in the washing space 200a passes through the water inlet 110a and flows through the backflow prevention structure 130 to enter the filter cavity 100a, and the water flow filtered by the filter screen flows back to the washing space 200a through the water outlet 120a, so that flocks are collected in the filter cavity 100a in the washing and/or dewatering process, and articles such as clothes are further cleaned conveniently.

The specific type of the washing device is not limited, for example, the washing device may be any one or more of a washing and drying machine, a washing machine, and a shoe washing machine, which are not limited herein.

In one embodiment, referring to fig. 1, the rotation axis of the inner tub 200 can be vertical, for example, the washing device is a pulsator washing machine, and the pulsator is rotatably disposed in the inner tub 200. During the washing process, the pulsator rotates, and the pulsator drives the laundry in the washing space 200a and the water flow to move, and the water flow can enter the filter chamber 100a through the water inlet 110 a. In the dehydration process, the pulsator and the inner tub 200 rotate synchronously, the pulsator and the inner tub 200 drive the clothes and the water flow to move, and the water flow can enter the filter cavity 100a through the water inlet 110 a.

In another embodiment, the rotation axis of the inner tub 200 may be inclined at a certain angle with respect to the vertical direction, for example, the washing apparatus is a pulsator type washing machine.

In one embodiment, referring to fig. 2, the height of the water outlet 120a is not higher than the height of the water inlet 110 a. That is, the height of the water outlet 120a is lower than or equal to the height of the water inlet 110a, so that the water flow of the washing space 200a is prevented from directly entering the filter chamber 100c from the water outlet 120a, and the lint in the filter chamber 100c is flushed back to the water inlet 110 a.

In one embodiment, referring to fig. 2, the water return plate 110 and the inner circumferential sidewall of the inner cylinder 200 cooperate to form a water inlet channel 1a, and the bottom of the water return plate 110 and the inner surface of the inner cylinder 200 are spaced apart from each other to communicate with the washing space 200 a. That is, a space is provided between the bottom of the water returning plate 110 and the inner surface of the inner tub 200, and the space communicates the upstream end of the water inlet flow passage 1a and the washing space 200 a. The water flow of the washing space 200a enters the water inlet flow channel 1a from the space between the bottom of the water return plate 110 and the inner surface of the inner tub 200, the water flow in the water inlet flow channel 1a enters the filter chamber 100a through the water inlet 110a and the backflow preventing structure 130, and the water flow filtered by the filter screen flows back to the washing space 200a through the water outlet 120a, so that the filtering cycle of the water flow is realized. Because the water flow enters the water inlet channel 1a from the bottom of the water inlet channel 1a, the filtering circulation of the water flow can be ensured under the condition that the water level in the inner cylinder 200 is lower, and the reliability of collecting the flock of the filtering device 100 is further improved.

In one embodiment, referring to fig. 2, the water outlet 120a is formed on a side wall of the filter assembly 120 away from the water return plate 110, and the water inlet 110a is formed on a side wall of the water return plate 110 away from the filter assembly 120. The water inlet 110a communicates the downstream end of the water inlet flow path 1a with the filter chamber 100 a. On the one hand, the water inlet 110a is formed on the side wall of the water return plate 110 facing the filter assembly 120, and water flow is guided to the water inlet 110a through the water inlet channel 1a, so that water flow from the water inlet channel 1a can be prevented from flowing back, a one-way valve element does not need to be arranged on the water inlet 110a, and the filter device 100 is simple in structure.

The specific connection manner of the water return plate 110 and the inner cylinder 200 is not limited, and in an exemplary embodiment, referring to fig. 1, fig. 2 and fig. 7, the water return plate 110 is clamped with the inner cylinder 200. The backwater plate 110 and the inner tub 200 may also be connected by screws. Thus, the backwater plate 110 is more stably coupled to the inner tub 200.

The specific manner of the water return plate 110 and the inner peripheral sidewall of the inner cylinder 200 cooperating together to form the water inlet channel 1a is not limited, for example, in an embodiment, referring to fig. 7, a side surface of the water return plate 110 facing the inner peripheral sidewall of the inner cylinder 200 is provided with two ribs 111, the two ribs 111 are arranged at intervals along the width direction of the water return plate 110, and the two ribs 111 are both abutted against the inner peripheral sidewall of the inner cylinder 200, so that the water return plate 110, the two ribs 111 and the inner peripheral sidewall of the inner cylinder 200 jointly enclose the water inlet channel 1 a.

In an embodiment, referring to fig. 1, 2, and 8 to 10, the filter assembly 120 includes a cover 121 and a cover plate 122, the cover 121 is detachably mounted on the water return plate 110, a water outlet 120a is formed on a side wall of the cover 121, the cover plate 122 is located between the cover 121 and the water return plate 110, and the cover plate 122 is movably connected to the cover 121. The internal surface of housing 121 and apron 122 is all smooth relatively, and apron 122 can be opened or close, when needing to clear up the flock, dismantle filter assembly 120 from return water board 110, open apron 122, and the space between apron 122 and the housing 121 is opened, and the flock in the space can be cleared up fast, and the user can clear up the flock more conveniently and easily, can not be by backflow prevention structure 130 fish tail, and user experience is good. After the cleaning is completed, the cover plate 122 is closed, the space between the cover plate 122 and the cover case 121 is closed, and the filter assembly 120 is assembled to the water return plate 110.

In one embodiment, referring to fig. 1, fig. 2, and fig. 8 to fig. 10, the cover plate 122 is located at the bottom side of the backflow prevention structure 130 in the height direction of the filter device 100. Therefore, the cover plate 122 can be prevented from interfering the backflow preventing structure 130, the cover plate 122 can be prevented from blocking the water inlet 100a, the water passing opening is formed by the height difference between the cover plate 122 and the housing 121, and water flow from the water inlet 100a can conveniently enter between the housing 121 and the cover plate 122 through the water passing opening.

In an embodiment, referring to fig. 1, fig. 2, and fig. 8 to fig. 10, the casing 121 and the backwater plate 110 cooperate to form the filter chamber 100a, and a water outlet 120a is formed on a side wall of the casing 121 away from the backwater plate 110. Thus, the water flow in the filter chamber 100a is facilitated.

The filter is not limited to be fixed, and in an exemplary embodiment, the filter is integrally formed with the housing 121. So, simple structure, the assembly is simple and convenient, and structural strength is high. In another embodiment, the filter is attached to the housing 121. For example, the filter net is adhered to the housing 121 by a waterproof adhesive.

In one embodiment, referring to fig. 2, 6 and 10, a flange 1221 is formed at the top of the cover plate 122, the flange 1221 abuts against the side of the return water plate 110 facing the housing 121, the filter device 100 includes a partition 140 disposed on the side of the housing 121 facing the return water plate 110, in the height direction of the filter device 100, the partition 140 is located at the bottom side of the cover plate 122, and the partition 140 abuts against the side of the return water plate 110 facing the housing 121. The flange 1221 abuts against the side of the return water plate 110 facing the housing 121 to close the gap between the cover plate 122 and the side of the return water plate 110 facing the housing 121, thus preventing the flow of water from the water inlet 110a from entering between the cover plate 122 and the return water plate 110. The partition 140 abuts against a side surface of the return plate 110 facing the housing 121 to close a gap between the housing 121 and the side surface of the return plate 110 facing the housing 121. Like this, can keep fit clearance between the bottom of apron 122 and the housing 121, avoid the apron 122 to open or close the in-process, the bottom of apron 122 and the side of housing 121 towards return water board 110 contact the friction repeatedly, lead to the bottom of apron 122, housing 121 or filter screen impaired, and the less flock that comes from between the bottom of apron 122 and the side of housing 121 towards return water board 110 and fit clearance outflow is blockked by baffle 140, avoid the interior flock of filter chamber 100a to flow out, improved the collection reliability.

In an embodiment, referring to fig. 2, 6 and 10, a side surface of the water returning plate 110 facing the housing 121 is formed with a step surface 110b and an open groove 110c, the step surface 110b is located at a bottom side of the backflow preventing structure 130, the open groove 110c is located at a bottom side of the water returning plate 110, and a bottom surface of the flange 1221 abuts against the step surface 110 b. The partition plate 140 is inserted into the open groove 110c, and the partition plate 140 abuts against the inner surface of the open groove 110 c. Thus, not only can the water flow from the water inlet 110a be prevented from entering between the cover plate 122 and the water return plate 110, and the burrs can be prevented from escaping from the burr containing cavity 120b, but also the cover plate 122 and the cover casing 121 can be conveniently positioned and assembled on the water return plate 110, and the cover plate 122 and the cover casing 121 can be prevented from deviating.

In an embodiment, referring to fig. 5, 9 and 10, the housing 121 is formed with a limiting rib 1211, the backwater plate 110 is formed with a limiting groove 110d corresponding to the limiting rib 1211, and the limiting rib 1211 can be inserted into the limiting groove 110 d. Thus, the cover 121 can be positioned and assembled on the water return plate 110 conveniently, and the cover 121 can be prevented from shaking, so that the assembly between the cover 121 and the water return plate 110 is more stable.

In one embodiment, referring to fig. 5 and 9, the water return plate 110 is recessed toward the side of the casing 121 to form a limiting groove 110d, and the limiting rib 1211 is located on the outer periphery of the casing 121.

The number of the limiting ribs 1211 and the limiting grooves 110d is not limited, and in an exemplary embodiment, the number of the limiting ribs 1211 and the number of the limiting grooves 110d are both one. In another embodiment, referring to fig. 5 and 9, the number of the limiting ribs 1211 and the limiting grooves 110d is plural. For example, the number of the restricting ribs 1211 and the number of the restricting grooves 110d are both two.

The specific structure of the cover plate 122 is not limited, and in an exemplary embodiment, referring to fig. 2, 9 and 12, the cover plate 122 includes a plate 1222 rotatably connected to the housing 121, and a bottom plate 1223 located at the bottom of the plate 1222, the bottom plate 1223 is disposed on the side of the plate 1222 facing the housing 121, and the plate 1222, the bottom plate 1223 and the housing 121 together enclose the burr holding cavity 120 b. The top side of the lint receiving chamber 120b is opened to receive the lint, and the plate body 1222 is rotated with respect to the housing 121 to open or close the cover plate 122. The flocks are deposited on the base plate 1223.

The specific manner of the plate 1222 being rotatably connected to the housing 121 is not limited, and for example, in an embodiment, please refer to fig. 2, 9 and 12, two ends of the bottom of the plate 1222 in the width direction are respectively formed with a rotating shaft 12221, two sides of the housing 121 in the width direction are respectively formed with a shaft hole 121b, and the rotating shaft 12221 is located in the shaft hole 121 b. Thus, the plate body 1222 is urged, the cover 122 is rotated about the axis of the rotation shaft 12221, and the cover 122 can be opened or closed. In order to prevent the bottom plate 1223 from contacting the friction casing 121 and/or the filter net covering the water outlet 120a, there is a certain assembly gap between the bottom plate 1223 and the casing 121, and since the bottom side of the bottom plate 1223 has the partition plate 140, the swarf coming from the assembly gap between the bottom plate 1223 and the casing 121 can be blocked by the partition plate 140.

In one embodiment, referring to fig. 12, the bottom plate 1223 is wavy. Wavy bottom plate 1223 can alleviate the water wave impact to a certain extent, so, avoid to a certain extent that the flock deposited on bottom plate 1223 is strikeed to the top side by the water wave and is moved to further improve the flock and collect the reliability.

In one embodiment, one of the cover plate 122 and the housing 121 is formed with a protrusion 1224, the other of the cover plate 122 and the housing 121 is formed with a groove 121a, and the protrusion 1224 is captured in the groove 121 a. For example, in one embodiment, referring to fig. 11 and 12, the cover plate 122 is formed with protrusions 1224 and the housing 121 is formed with recesses 121 a. In another embodiment, the housing 121 is formed with protrusions 1224 and the cover plate 122 is formed with recesses 121 a. In this manner, the protrusion 1224 is in interference fit with the groove 121a, so that the cover plate 122 is clamped with the housing 121. When it is necessary to clean the lint containing chamber 120b, the projection 1224 escapes from the recess 121a to open the cover plate 122, thereby cleaning the lint containing chamber 120 b. At the completion of cleaning, the cover 122 is closed and the projection 1224 snaps into the groove 121 a.

In one embodiment, referring to fig. 11 and 12, the bottom of the plate 1222 is rotatably connected to the housing 121, and the top of the plate 1222 is formed with protrusions 1224 or recesses 121 a. Thus, when cleaning is required for the lint containing chamber 120b, the projection 1224 escapes from the recess 121a, and the plate body 1222 is rotated to open the cover plate 122, thereby cleaning the lint containing chamber 120 b. When cleaning is completed, the plate body 1222 is rotated to close the cover plate 122, and the projection 1224 is caught in the groove 121 a.

To facilitate the detachable connection of the filter assembly 120 and the water return plate 110, in an exemplary embodiment, referring to fig. 2 and fig. 8 to 10, the filter assembly 120 is formed with an insertion rib 123 and a first clamping rib 124 at two ends along the height direction thereof, the water return plate 110 is formed with an insertion groove 110e and a second clamping rib 112 distributed along the height direction thereof, and the insertion rib 123 can be inserted into or pulled out of the insertion groove 110 e. In a state where the insertion rib 123 is inserted into the insertion groove 110e, the first clamping rib 124 can be clamped with the second clamping rib 112. On one hand, the two detachable connection modes of insertion and clamping enable the connection between the filter assembly 120 and the water return plate 110 to be more stable and firm. On the other hand, to a certain extent, it is convenient for the filter assembly 120 to be quickly and conveniently disassembled and assembled.

The specific structural shapes of the first clamping rib 124 and the second clamping rib 112 are not limited, in an embodiment, please refer to fig. 2 and fig. 6 to 10, the filtering apparatus 100 includes a bending rib 150 disposed on the housing 121, the bending rib 150 extends from the housing 121 to the top side and bends to one side away from the water returning plate 110, the first clamping rib 124 is a convex structure, the first clamping rib 124 is disposed on the top surface of the bending rib 150, the second clamping rib 112 is an open groove-shaped structure at the bottom side, the bending rib 150 elastically deforms to the bottom side, so that the first clamping rib 124 can be inserted into the second clamping rib 112 through the open bottom side of the second clamping rib 112. That is to say, first joint muscle 124 sets up in the top of housing 121, grafting muscle 123 sets up in the bottom of housing 121, under the state that grafting muscle 123 inserted inserting groove 110e, to the bottom side press bending muscle 150, bending muscle 150 takes place elastic deformation to the bottom side, first joint muscle 124 inserts in second joint muscle 112 through the open department in bottom side of second joint muscle 112, loosen bending muscle 150, bending muscle 150 provides the elastic force to the top side, so that first joint muscle 124 can support the internal surface of tight second joint muscle 112, make first joint muscle 124 and second joint muscle 112 joint.

The number of the first clamping ribs 124 and the second clamping ribs 112 is not limited, and in one embodiment, the number of the first clamping ribs 124 and the second clamping ribs 112 is one. In another embodiment, referring to fig. 2 and fig. 6 to fig. 10, the number of the first clamping ribs 124 and the number of the second clamping ribs 112 are both multiple, and the first clamping ribs 124 and the second clamping ribs 112 are arranged in a one-to-one correspondence manner. Illustratively, in one embodiment, the number of the first clamping ribs 124 and the number of the second clamping ribs 112 are two.

To facilitate the user's pressing on the bending ribs 150, in one embodiment, referring to fig. 9 and 10, the filter device 100 includes a non-slip strip 160 disposed on the top surface of the bending ribs 150. The anti-slip strip 160 can reinforce the friction of the top surface of the bending rib 150, thereby preventing the user's finger from slipping off when pressing the top surface of the bending rib 150.

The specific structure of the backflow prevention structure 130 is not limited, and for example, in an embodiment, please refer to fig. 2, fig. 3, fig. 5, and fig. 6, the backflow prevention structure 130 includes a plurality of backflow prevention units 131, and the backflow prevention units 131 are arranged in a staggered manner. The flow rate of the water from the inlet channel 1a is large, the flow rate is high, and the water from the inlet 110a can smoothly flow into the filter chamber 100a through the staggered gaps between the backflow prevention units 131. In the process that the flock in the filter cavity 100a flows back under the stirring and impact of water flow, the kinetic energy of the returned flock is generally low, that is, the moving speed of the returned flock is low, and the returned flock can enter the water inlet 110a only by avoiding the plurality of backflow prevention units 131, and in the process, the water flow from the water inlet 110a can flush the returned flock back into the filter cavity 100a, so that the backflow prevention units 131 can retain the flock in the filter cavity 100 a.

In an exemplary embodiment, referring to fig. 2, fig. 3, fig. 5 and fig. 6, the backflow prevention units 131 are arranged at intervals in a layer along the height direction of the filtering apparatus 100, the backflow prevention units 131 in the same layer are arranged at intervals, and two adjacent layers of backflow prevention units 131 are arranged in a staggered manner. The movement speed of the reflowed flocks is slow, and the multilayered backflow prevention unit 131 is difficult to avoid, so that the flock stopping capability is further improved.

In order to further improve the reliability of the collection of the lint, in one embodiment, referring to fig. 5, in a top-view projection of the filtering apparatus 100, a projection of the backflow prevention unit 131 at the upper layer can cover a gap between projections of two adjacent backflow prevention units 131 at the lower layer. In this way, the returned lint is further prevented from escaping from the excessive misalignment gap between the two adjacent layers of the backflow prevention units 131.

The specific structural shape of the backflow prevention unit 131 is not limited, and for example, in an embodiment, referring to fig. 5 and 6, the backflow prevention unit 131 includes two straight slope surfaces 1311 connected to each other, the two straight slope surfaces 1311 abut against each other to form a tip, the tip is disposed toward the water inlet 110a, and the straight slope surfaces 1311 extend toward a side away from the water inlet 110 a. That is, one end of the backflow prevention unit 131 in the length direction thereof is connected to a side of the water return plate 110 facing the filter assembly 120. In this way, it is convenient to prevent the backflow prevention unit 131 from contacting and rubbing the filter assembly 120 by controlling the length of the backflow prevention unit 131 to control the assembly gap between the backflow prevention unit 131 and the filter assembly 120. In the process that the water from the water inlet 110a moves to the bottom side, the water from the water inlet 110a contacts the tip of the backflow prevention unit 131 and moves to the bottom side rapidly under the diversion action of the straight slope 1311, so that the flock in the water from the water inlet channel 1a is prevented from winding on the straight slope 1311. A blocking space is formed between the two straight slope surfaces 1311, and in the process that the reflowing flocks under the impact of water waves move to the top side, the water waves are stopped by the blocking space, so that the reflowing flocks are prevented from reflowing to the water inlet 110 a.

In one embodiment, referring to fig. 3 and 6, the length of the backflow prevention unit 131 is gradually decreased from the bottom layer to the top layer. Since the backflow of the lint is less as it gets closer to the top layer, the backflow of the lint is mainly concentrated at the backflow preventing unit 131 of the bottom layer, and the distance between the backflow preventing unit 131 of the bottom layer and the inner surface of the opposite filter chamber 100a is small, thereby preventing the backflow of the lint from escaping through the gap between the backflow preventing unit 131 and the inner surface of the opposite filter chamber 100 a. The back-flowing shavings are very small at the top anti-backflow unit 131, the amount of water from the water inlet 110a is large, the gap between the top anti-backflow unit 131 and the inner surface of the opposite filter chamber 100a is large, and interference of the water flow from the water inlet 110a into the filter chamber 100a is avoided as much as possible under the condition of a certain shavings stopping capability.

The various embodiments/implementations provided herein may be combined with each other without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (14)

1. A filter device for a washing apparatus, comprising:

the water return plate (110) is arranged on the inner peripheral side wall of the inner barrel (200) of the washing equipment, and a water inlet (110a) is formed in the water return plate (110);

the filter assembly (120) is detachably mounted on the water return plate (110), the filter assembly (120) and the water return plate (110) are matched together to form a filter cavity (100a), the water inlet (110a) is communicated with the filter cavity (100a), and the filter assembly (120) is provided with a water outlet (120 a); and

a backflow prevention structure (130), the backflow prevention structure (130) being disposed on the water return plate (110) and located at a lower side of the water inlet (110 a).

2. The filtering device according to claim 1, wherein the height of the water outlet (120a) is not higher than the height of the water inlet (110 a).

3. The filtering device as claimed in claim 1, wherein the water returning plate (110) cooperates with an inner peripheral sidewall of the inner tub (200) to form a water inlet flow passage (1a), and a bottom of the water returning plate (110) is spaced apart from an inner surface of the inner tub (200) to communicate with the washing space (200a) of the inner tub (200).

4. The filtering device according to claim 1, characterized in that said filtering assembly (120) comprises:

a cover case (121) detachably mounted on the water return plate (110), a side wall of the cover case (121) being formed with the water outlet (120 a); and

the cover plate (122) is positioned between the housing (121) and the water return plate (110), and the cover plate (122) is movably connected with the housing (121).

5. The filter device according to claim 4, characterized in that the cover plate (122) is located at the bottom side of the backflow prevention structure (130) in the height direction of the filter device (100).

6. The filter device according to claim 4, characterized in that the top of the cover plate (122) is formed with a flange (1221), the flange (1221) abuts against the side of the water return plate (110) facing the housing (121), the filter device (100) comprises a partition (140) arranged on the side of the housing (121) facing the water return plate (110), the partition (140) is located on the bottom side of the cover plate (122) in the height direction of the filter device (100), and the partition (140) abuts against the side of the water return plate (110) facing the housing (121).

7. The filtering apparatus according to claim 6, wherein a side of the return water plate (110) facing the housing (121) is formed with a stepped surface (110b) and an open groove (110c), the stepped surface (110b) is located at a bottom side of the backflow preventing structure (130), the open groove (110c) is located at a bottom side of the return water plate (110), a bottom surface of the flange (1221) abuts the stepped surface (110b), the partition plate (140) is inserted into the open groove (110c), and the partition plate (140) abuts an inner surface of the open groove (110 c).

8. The filtering device according to claim 4, characterized in that the cover plate (122) comprises a plate body (1222) rotatably connected to the housing (121), and a bottom plate (1223) located at the bottom of the plate body (1222), the bottom plate (1223) being disposed on the side of the plate body (1222) facing the housing (121), the plate body (1222), the bottom plate (1223) and the housing (121) together enclosing a flock-holding chamber (120 b).

9. A filter device as claimed in claim 8, wherein the bottom plate (1223) is corrugated.

10. The filtering device according to claim 4, characterized in that one of the cover plate (122) and the casing (121) is formed with a projection (1224), and the other of the cover plate (122) and the casing (121) is formed with a recess (121a), the projection (1224) snapping into the recess (121 a).

11. The filtering device according to any one of claims 1 to 10, wherein the backflow prevention structure (130) comprises a plurality of backflow prevention units (131), and the backflow prevention units (131) are arranged in a staggered manner.

12. A filter device according to claim 11, wherein the backflow prevention unit (131) comprises two interconnected straight slope surfaces (1311), the two straight slope surfaces (1311) forming a tip against each other, the tip being arranged towards the water inlet (110a), the straight slope surfaces (1311) being arranged extending towards a side remote from the water inlet (110 a).

13. A filter device as claimed in claim 12, characterised in that the length of the backflow prevention unit (131) decreases from the bottom layer to the top layer.

14. A washing apparatus, comprising:

an inner tub (200), the inner tub (200) having a washing space (200 a); and

the filtering device (100) as claimed in any one of claims 1 to 13, wherein the filtering device (100) is located in the washing space (200a), and the water returning plate (110) is disposed on an inner circumferential sidewall of the inner tub (200).

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