Filter and clothes treating apparatus

Abstract

The invention relates to a clothes treatment device, in particular to a filter and a clothes treatment device, and aims to solve the problems that an existing filter is easy to block and needs to be cleaned frequently. To this end, the filter of the present invention comprises: a filter housing; the filter element is arranged in the filter shell, outer filter holes are formed in the filter element, and the outer filter holes are formed in the outer wall of the filter element; the sliding sleeve is arranged outside the filter element in a sleeving mode, and a scraping blade abutting against the outer wall of the filter element is arranged on the inner circumference of the sliding sleeve; the driving piece is connected with the sliding sleeve, and the driving piece can drive the sliding sleeve to move along the outer wall of the filter element; when the sliding sleeve moves, the scraping blades can remove impurities on the outer wall of the filter element. The driving piece can drive the sliding sleeve to move along the outer wall of the filter element. When the sliding sleeve moves, the scraping blades can remove impurities attached to the outer wall of the filter element and prevent the impurities from blocking the outer filter holes, so that the service life of the filter is prolonged, and the frequency of cleaning the filter is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a clothes treatment device, and particularly provides a filter and clothes treatment device. BACKGROUND

[0002] A washing machine needs an external water source to supply water, and if the external water source has many impurities, the water inlet of the washing machine needs to be filtered to prevent the impurities in the water from polluting the clothes.

[0003] The prior art usually provides a filter on the water inlet pipe of the washing machine, but the filter has a small volume, resulting in a small filter screen area. If there are many impurities in the water, the filter screen will be blocked, affecting the water inlet of the washing machine. Therefore, the filter needs to be cleaned frequently, which is inconvenient for washing clothes.

[0004] Therefore, there is an urgent need in the art / related art for a filter and clothes treatment device to solve the above problems. SUMMARY

[0005] The present application aims to solve the above technical problems, i.e., to solve the problem that the existing filter is prone to blockage and needs to be cleaned frequently.

[0006] In a first aspect, the present application provides a filter, comprising:

[0007] a filter housing;

[0008] a filter element arranged in the filter housing, the filter element being provided with an outer filter hole, the outer filter hole being arranged on an outer wall of the filter element;

[0009] a sliding sleeve arranged outside the filter element, the sliding sleeve being provided with a scraping edge abutting the outer wall of the filter element on an inner periphery of the sliding sleeve;

[0010] a driving member connected to the sliding sleeve, the driving member being capable of driving the sliding sleeve to move along the outer wall of the filter element;

[0011] When the sliding sleeve moves, the scraping edge can remove impurities on the outer wall of the filter element.

[0012] In the specific embodiment of the filter described above, the scraping edge is arranged obliquely towards the upper part of the filter element;

[0013] When the sliding sleeve moves upwards, the scraping edge can move the impurities on the outer wall of the filter element to the upper surface of the sliding sleeve.

[0014] In the specific embodiment of the filter described above, the filter element is internally provided with a storage cavity, and the upper surface of the filter element is provided with a first opening connected to the storage cavity;

[0015] The upper surface of the sliding sleeve is provided with a slope surface towards the first opening, and impurities on the upper surface of the sliding sleeve can fall into the storage cavity along the slope surface.

[0016] In the specific embodiment of the filter, the filter element comprises:

[0017] An inner filter screen is provided with the first opening at the upper end and the storage cavity inside, and is provided with an inner filter hole;

[0018] An outer filter screen is sleeved outside the inner filter screen, and the upper end of the outer filter screen is connected to the upper end of the inner filter screen, and the lower end of the outer filter screen is provided with a second opening, and the outer filter hole is provided on the outer filter screen;

[0019] The filtered objects passing through the outer filter hole and the inner filter hole can be discharged from the filter element through the second opening.

[0020] In the specific embodiment of the filter, the driving member is an elastic member, which can drive the sliding sleeve to move to the upper part of the filter element;

[0021] When the inner filter hole is blocked, the pressure of the filtered objects in the filter housing increases, which can drive the sliding sleeve to move downward and compress the elastic member;

[0022] When the filtered objects stop entering the filter housing, the pressure of the filtered objects decreases, and the compressed elastic member can drive the sliding sleeve to move upward.

[0023] In the specific embodiment of the filter, the filter further comprises:

[0024] An outer corrugated sleeve is connected to the upper end of the sliding sleeve and is closed at the lower end, and the outer corrugated sleeve is sleeved outside the elastic member;

[0025] An inner corrugated sleeve is connected to the upper end of the sliding sleeve and is closed at the lower end, and the inner corrugated sleeve is arranged through the elastic member.

[0026] In the specific embodiment of the filter, the lower end of the outer corrugated sleeve is provided with an outer turning edge, the inside of the filter housing is provided with a supporting pad, and the supporting pad and the bottom surface of the inside of the filter housing clamp the outer turning edge to close the lower end of the outer corrugated sleeve;

[0027] The lower end of the inner corrugated sleeve is provided with an inner turning edge, the filter element comprises a flange plate, and the flange plate and the supporting pad clamp the inner turning edge to close the lower end of the inner corrugated sleeve.

[0028] In the specific embodiment of the filter, the filter element comprises a reinforcing rib, a first end of the reinforcing rib abutting against an inner top wall of the filter housing, so that a space is formed between the upper end of the filter element and the inner top wall of the filter housing.

[0029] The filtering object in the filter housing can pass through the space to push the sliding sleeve to move.

[0030] In the specific embodiment of the filter, the outlet area of the outer filter hole is larger than the inlet area of the outer filter hole.

[0031] In the second aspect, the present application provides a clothes treatment device, which comprises a device main body and the filter described above, and the device main body is connected to the filter.

[0032] In the case of adopting the technical scheme described above, the driving member can drive the sliding sleeve to move along the outer wall of the filter element. When the sliding sleeve moves, the scraping edge can remove the impurities adhering to the outer wall of the filter element, so as to prevent the impurities from blocking the outer filter hole, thereby prolonging the service life of the filter and reducing the frequency of cleaning the filter.

[0033] Further, the scraping edge is obliquely arranged towards the upper part of the filter element. When the sliding sleeve moves upwards, the scraping edge can move the impurities on the outer wall of the filter element to the upper surface of the sliding sleeve. Further, the upper surface of the sliding sleeve is provided with an inclined surface, and the impurities removed by the scraping edge can fall into the storage cavity of the filter element along the inclined surface, so as to collect the impurities. By collecting the impurities, the effect of the scraping edge and the movement of the sliding sleeve can be avoided from being affected, and the impurities can also be prevented from adhering to the filter element again or blocking the outer filter hole.

[0034] Further, the outlet area of the outer filter hole is larger than the inlet area thereof. When the impurities are stuck in the outer filter hole, the scraping edge can cut off the part of the impurities located outside the outer filter hole. Since the outlet area of the outer filter hole is larger, the part of the impurities located inside the outer filter hole can smoothly pass through the outlet of the outer filter hole, so as to avoid the impurities from being stuck in the outer filter hole after being scraped, which causes the blockage of the outer filter hole not to be eliminated.

[0035] Further, the outer corrugated sleeve and the inner corrugated sleeve can enclose the elastic member, so as to block the elastic member from the filtering object and avoid the elastic member from rusting. BRIEF DESCRIPTION OF DRAWINGS

[0036] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, in which:

[0037] Figure 1 is a structural schematic diagram of the clothes treatment device provided by the present application;

[0038] Figure 2is the internal structure schematic view of the filter in the first state provided by the present application, the arrow in the figure shows the water flow path;

[0039] Figure 3 is the external structure schematic view of the filter core provided by the present application;

[0040] Figure 4 is the structure schematic view of the external filter hole and cutting edge provided by the present application;

[0041] Figure 5 is the structure schematic view of the upper surface of the sliding sleeve provided by the present application;

[0042] Figure 6 is the structure schematic view of the sliding sleeve, external corrugated sleeve and internal corrugated sleeve provided by the present application;

[0043] Figure 7 is the structure schematic view of the filter in the second state provided by the present application, the section line in the storage cavity in the figure represents the state that the internal filter hole is blocked;

[0044] Figure 8 is the structure schematic view of the filter in the third state provided by the present application, the arrow in the figure shows the water flow path;

[0045] Figure 9 is the structure schematic view of the filter in the fourth state provided by the present application, the section line in the upper part of the storage cavity in the figure represents the state that the internal filter hole is blocked, and the section line in the lower part of the storage cavity represents the impurities collected in the storage cavity.

[0046] List of reference signs:

[0047] 1, filter housing; 11, upper housing; 111, water inlet; 112, first joint; 12, lower housing; 121, water outlet; 122, second joint; 13, sealing gasket;

[0048] 21, external filter hole; 22, storage cavity; 23, first opening; 24, internal filter screen; 25, external filter screen; 26, second opening; 27, reinforcing rib; 28, flange; 29, external cavity;

[0049] 3, sliding sleeve; 31, scraping edge; 32, avoiding hole; 33, first annular groove; 34, second annular groove;

[0050] 4, elastic member; 5, external corrugated sleeve; 51, external flange; 6, internal corrugated sleeve; 61, internal flange; 7, supporting gasket; 8, device main body; 9, water inlet pipe; 10, faucet. DETAILED DESCRIPTION

[0051] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood that the embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application.

[0052] It should be noted that, in the description of the present application, the terms indicating the direction or positional relationship of "upper", "lower", "left", "right", "inner", "outer" and the like are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0053] In addition, it should also be noted that, in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] In order to solve the problem that the filter is easy to be blocked and needs to be cleaned frequently, the present embodiment discloses a clothes treatment device. Referring to Figure 1 , the clothes treatment device comprises a device main body 8 and a filter. The device main body 8 can be a washing machine. The filtering object of the filter is washing water. The water inlet 111 of the filter is connected to an external water source, which is usually a faucet 10 or an angle valve. The water outlet 121 of the filter is connected to the device main body 8 through a water inlet pipe 9. The filter is used to filter impurities in water. The filter is arranged outside the device main body 8, so as to facilitate dismounting the filter and cleaning the filter element.

[0055] It should be noted that, although the filter in the present embodiment is arranged outside the device main body 8, this arrangement is not a limitation of the present application. Those skilled in the art can also use other arrangements in other embodiments without departing from the principles of the present application, for example: since the present filter has a self-cleaning function, the filter can also be arranged inside the device main body 8, which does not deviate from the basic principles of the present application, and therefore falls within the protection scope of the present application.

[0056] It should be noted that although the filtering object in the embodiment is washing water, the setting mode is not a limitation of the present application, and the skilled in the art can use other filtering objects in other embodiments without departing from the principles of the present application, which does not deviate from the basic principles of the present application and thus falls within the protection scope of the present application.

[0057] With reference to Figure 2 , the filter comprises a filter housing 1, a filter core, a sliding sleeve 3, an elastic member 4, an outer corrugated sleeve 5, an inner corrugated sleeve 6 and a support pad 7.

[0058] The filter housing 1 comprises an upper housing 11 and a lower housing 12, which are connected by threads, and enclose a cavity. The upper housing 11 is provided with a water inlet 111. Further, the water inlet 111 is provided with a first adapter 112 for connecting an external water source. In the embodiment, the first adapter 112 is a female head, and a faucet 10 of the external water source can be inserted into the first adapter 112. The inside of the first adapter 112 is provided with a flange, and the flange is provided with a sealing gasket 13. When the first adapter 112 is connected to the external water source, the top of the flange clamps the sealing gasket 13 with the external water source, such as the faucet 10, to prevent leakage. The lower housing 12 is provided with a water outlet 121. Further, the water outlet 121 is provided with a second adapter 122 for connecting the device body 8. The second adapter 122 is a male head, which can be inserted into the water inlet pipe 9 of the device body 8, so that the filter is connected to the device body 8. The water inlet 111 and the water outlet 121 are both connected to the cavity inside the filter housing 1. The external water source can enter the cavity through the water inlet 111, and the filtered water in the cavity is discharged through the water outlet 121. Further, the support pad 7 is arranged on the lower surface of the cavity, and the support pad 7 is a hard rigid gasket, which is used to fix other components of the filter.

[0059] It should be noted that although the filter housing 1 in the embodiment is composed of the upper housing 11 and the lower housing 12 connected by threads, the setting mode is not a limitation of the present application, and the skilled in the art can use other setting modes in other embodiments without departing from the principles of the present application, which does not deviate from the basic principles of the present application and thus falls within the protection scope of the present application.

[0060] With reference to Figure 2 and Figure 3 , the filter core comprises an inner filter screen 24, an outer filter screen 25, a flange plate 28 and a reinforcing rib 27.

[0061] The inner filter screen 24 is a cylindrical shell, and the upper end of the inner filter screen 24 is provided with a first opening 23, and the lower end is closed. The inner filter screen 24 forms a storage cavity 22 inside, which is used to store impurities. The side wall and the lower end surface of the inner filter screen 24 are both provided with a plurality of inner filter holes. Further, the first opening 23 is a conical surface, and the small end of the first opening 23 is connected to the storage cavity 22, and the large end of the first opening 23 is connected to the upper end of the outer filter screen 25, so that the impurities can fall into the storage cavity 22 along the conical surface of the first opening 23. The first opening 23 is also provided with a plurality of inner filter holes.

[0062] The outer filter screen 25 is a cylindrical shell. The outer filter screen 25 is sleeved outside the inner filter screen 24, and the upper end of the outer filter screen 25 is connected to the upper end of the inner filter screen 24. In this embodiment, the outer filter screen 25 and the inner filter screen 24 can be made of plastic, so that the outer filter screen 25 and the inner filter screen 24 are integrally injection molded, or connected and formed by a cladding process. The outer filter screen 25 and the inner filter screen 24 form an outer cavity 29 therebetween, and the outer filter holes 21 and the inner filter holes are connected to the outer cavity 29. The lower end of the outer filter screen 25 is provided with a second opening 26, which connects the outer cavity 29 and the outside of the filter core. The side wall of the outer filter screen 25 is provided with a plurality of outer filter holes 21. The water filtered through the outer filter holes 21 and the inner filter holes can enter the outer cavity 29, and the water in the outer cavity 29 can be discharged from the filter core through the second opening 26.

[0063] Those skilled in the art can understand that, although the outer filter screen 25 and the inner filter screen 24 in this embodiment are made of plastic, those skilled in the art can also use other materials, such as metal materials or other materials, in other embodiments, as long as the structure of the filter screen can be formed. Such changes do not deviate from the basic principles of the present application and are within the scope of protection of the present application.

[0064] Those skilled in the art can understand that, although the outer filter screen 25 and the inner filter screen 24 in this embodiment are integrally injection molded, those skilled in the art can also use other setting methods in other embodiments, such as bonding, clamping, threaded connection or other methods, as long as the structure of the filter core in the present application can be formed. Such changes do not deviate from the basic principles of the present application and are within the scope of protection of the present application.

[0065] Reference Figure 4The outer filter hole 21 has an inlet at one end facing the outside of the outer filter screen 25 and an outlet at the other end facing the inside of the outer filter screen 25, and the area of the inlet is smaller than that of the outlet. Specifically, the outer filter hole 21 is a tapered hole, with the small end facing the outside of the outer filter screen 25 and the large end facing the inside of the outer filter screen 25. If the impurities are small in size, they can pass through the inlet of the outer filter hole 21. Since the area of the outlet of the outer filter hole 21 is larger than that of the inlet, the impurities will not be stuck in the outer filter hole 21. In other words, the small impurities can pass through the outer filter hole 21 smoothly, preventing the impurities from blocking the outer filter hole 21. In addition, when the impurities are stuck in the inlet of the outer filter hole 21, the scraping edge 31 can cut off the part of the impurities outside the outer filter hole 21. Since the area of the outlet of the outer filter hole 21 is larger, the part of the impurities inside the outer filter hole 21 can pass through the outlet of the outer filter hole 21 smoothly, so that after the scraping edge 31 is scraped, the impurities are still stuck in the outer filter hole 21, which does not eliminate the blockage of the outer filter hole 21.

[0066] It should be noted that, although the outer filter screen 25 and the inner filter screen 24 in the embodiment are both cylindrical shells, this is not a limitation of the present application, and those skilled in the art can use other arrangements in other embodiments without departing from the principles of the present application, for example, the outer filter screen 25 and the inner filter screen 24 are prismatic shells, and the connecting shell is a pyramidal shell, which does not deviate from the basic principles of the present application and thus falls within the scope of the present application.

[0067] Further, the lower end of the outer filter screen 25 is longer than the lower end of the inner filter screen 24. When cleaning the filter element, the second opening 26 of the filter element is made to face upwards, and the external water flow enters the outer cavity 29 through the second opening 26, and the water in the outer cavity 29 flows out through the outer filter hole 21 and the inner filter hole, so as to clean all the outer filter holes 21 and all the inner filter holes, especially to facilitate cleaning of the collected impurities in the storage cavity 22.

[0068] Referring to Figure 2 and Figure 3 The flange 28 is a flange protruding outwardly from the outer wall of the outer filter screen 25. The flange 28 is used to connect other components. A plurality of reinforcing ribs 27 are arranged on the outside of the outer filter screen 25, with the lower end of the reinforcing rib 27 connected to the flange 28 and the upper end extending above the outer filter screen 25.

[0069] Referring to Figure 2The filter element is arranged in a cavity in the filter housing 1, and the outer filter screen 25 of the filter element is arranged through the through hole of the support pad 7. The flange plate 28 is arranged above the support pad 7. The upper end of the reinforcing rib 27 abuts against the inner top wall of the filter housing 1, so that a space is formed between the upper end of the inner filter screen 24, the upper end of the outer filter screen 25 and the inner top wall of the filter housing 1. The first opening 23 of the filter element faces the water inlet 111, and the second opening 26 faces the water outlet 121.

[0070] With reference to Figure 2 and Figure 5 , the sliding sleeve 3 is sleeved outside the filter element, and the sliding sleeve 3 can slide up and down along the outer wall of the filter element. The sliding sleeve 3 is a conical shell, and the upper surface of the sliding sleeve 3 is an inclined surface inclined toward the first opening 23, so that impurities on the upper surface of the sliding sleeve 3 can slide down into the storage cavity 22 along the inclined surface. With reference to Figure 4 , the inner periphery of the sliding sleeve 3 is further provided with a scraping edge 31, which is arranged upwardly inclined, and the angle of the scraping edge 31 is an acute angle. The scraping edge 31 abuts against the outer wall of the outer filter screen 25, and the scraping edge 31 is used to remove impurities on the outer wall of the outer filter screen 25.

[0071] It should be noted that although the sliding sleeve 3 in the embodiment is a conical shell, this arrangement is not a limitation of the present application. Those skilled in the art can use other shapes for the sliding sleeve 3 in other embodiments without departing from the principles of the present application, as long as the sliding sleeve 3 can move up and down along the filter element. This does not deviate from the basic principles of the present application and thus falls within the scope of the present application.

[0072] With reference to Figure 2 , the elastic member 4 is a cylindrical spring, and the elastic member 4 is sleeved outside the filter element. The upper end of the elastic member 4 is connected to the lower surface of the sliding sleeve 3, and the lower end of the elastic member 4 is connected to the support pad 7. The elastic member 4 can drive the sliding sleeve 3 to move to the upper part of the filter element.

[0073] With reference to Figure 2 and Figure 6 , the upper end of the outer corrugated sleeve 5 is connected to the sliding sleeve 3. Specifically, the sliding sleeve 3 is provided with a first annular groove 33, and the upper end of the outer corrugated sleeve 5 is sleeved outside the first annular groove 33. A first annular clamp presses the upper end of the outer corrugated sleeve 5 into the first annular groove 33 (not shown in the figure), so that the outer corrugated sleeve 5 is sealingly connected to the sliding sleeve 3. Figure 2 The lower end of the outer corrugated sleeve 5 is provided with an outwardly turned edge 51. The support pad 7 clamps the outwardly turned edge 51 between the inner bottom surface of the filter housing 1, so that the lower end of the outer corrugated sleeve 5 is fixed and sealed. The outer corrugated sleeve 5 is arranged outside the elastic member 4.

[0074] The upper end of the inner bellows sleeve 6 is connected to the sliding sleeve 3. Specifically, the sliding sleeve 3 is provided with a second annular groove 34. The upper end of the inner bellows sleeve 6 is sleeved outside the second annular groove 34. The second annular clamp presses the upper end of the inner bellows sleeve 6 into the second annular groove 34 (not shown in the figure) to seal the inner bellows sleeve 6 to the sliding sleeve 3. Figure 2 The lower end of the inner bellows sleeve 6 is provided with an inner flange 61. The flange 28 and the support pad 7 clamp the inner flange 61 to fix and seal the lower end of the inner bellows sleeve 6. The inner bellows sleeve 6 is passed through the inner side of the elastic member 4 and is sleeved on the outer side of the filter element.

[0075] The sliding sleeve 3, outer bellows sleeve 5, support pad 7, and inner bellows sleeve 6 form a sealed space within which the elastic member 4 is positioned to prevent contact with the water within the filter, which could corrode and rust the elastic member 4. Both the outer bellows sleeve 5 and the inner bellows sleeve 6 are made of rubber or silicone and can extend or contract with the upward and downward movement of the sliding sleeve 3. They also shield the sealing elastic member 4.

[0076] It should be noted that regarding the support pad 7, although the lower end of the elastic member 4 in this embodiment abuts the support pad 7, the outer flange 51 of the outer corrugated sleeve 5 and the inner flange 61 of the inner corrugated sleeve 6 are both clamped by the support pad 7, but this arrangement is not a limitation of the present invention. Without departing from the principles of the present invention, those skilled in the art may also adopt other arrangements in other embodiments. The elastic member 4 may directly abut against the inner wall of the lower shell 12, and the outer flange 51 of the outer corrugated sleeve 5 and the inner flange 61 of the inner corrugated sleeve 6 may be connected to the inner wall of the lower shell 12 by bonding. These changes do not deviate from the basic principles of the present invention. As long as the outer corrugated sleeve 5 and the inner corrugated sleeve 6 can form a sealing layer outside the elastic member 4, they will fall within the scope of protection of the present invention.

[0077] Regarding the connection structure of the outer bellows sleeve 5, the inner bellows sleeve 6 and the sliding sleeve 3, it should be noted that although the connection is made through an annular clamp and an annular groove in this embodiment, this setting method is not a limitation of the present invention. Without departing from the principles of the present invention, those skilled in the art may also adopt other settings in other embodiments, for example: bonding the bellows sleeve to the sliding sleeve 3. As long as the outer bellows sleeve 5 and the inner bellows sleeve 6 can be expanded or compressed as the sliding sleeve 3 moves up and down, and the sealing effect between the bellows sleeve and the sliding sleeve 3 is maintained, this does not deviate from the basic principles of the present invention and therefore falls within the scope of protection of the present invention.

[0078] Reference Figure 2 , here's how to install the filter:

[0079] First, the water inlet 111 of the upper shell 11 is made to face downward. Second, the whole of the slide sleeve 3, the outer corrugated sleeve 5 and the inner corrugated sleeve 6 is put into the upper shell 11. Then the elastic member 4 is put into the upper shell 11, and one end of the elastic member 4 abuts against the slide sleeve 3. Then the filter core is inserted into the through hole of the slide sleeve 3 until the protruding end of the reinforcing rib 27 of the filter core abuts against the upper shell 11. Then the inner flange 61 of the inner corrugated sleeve 6 covers the edge of the flange plate 28 of the filter core, and then the support pad 7 is sleeved outside the filter core so that the support pad 7 clamps the inner flange 61 with the flange plate 28, and the other end of the elastic member 4 abuts against the support pad 7. Then the outer flange 51 of the outer corrugated sleeve 5 covers the edge of the support pad 7. Then the lower shell 12 is connected with the upper shell 11, and the second opening 26 side of the filter core extends into the water outlet 121 of the lower shell 12. After the lower shell 12 is screwed with the upper shell 11, the filter is reversed so that the water inlet 111 faces upward and the water outlet 121 faces downward. At this time, the reinforcing rib 27 of the filter core abuts against the upper shell 11, the flange plate 28 at the lower part of the filter core abuts against the support pad 7 through the inner flange 61, the support pad 7 abuts against the lower shell 12 through the outer flange 51, so that the filter core is fixed; and the lower end of the elastic member 4 abuts against the support pad 7, and the upper end of the elastic member 4 is connected with the slide sleeve 3 to drive the slide sleeve 3 to move to the upper part of the filter core; the upper end of the inner corrugated sleeve 6 is connected with the slide sleeve 3, and the inner flange 61 at the lower end is clamped by the support pad 7 and the flange plate 28; the upper end of the outer corrugated sleeve 5 is connected with the slide sleeve 3, and the outer flange 51 at the lower end is clamped by the support pad 7 and the lower shell 12, so that the installation of the filter is completed.

[0080] The working principle of the filter will be introduced below.

[0081] The initial state of the filter is shown in Figure 2 , the elastic member 4 drives the slide sleeve 3 to move to the upper part of the outer filter screen 25, and the outer corrugated sleeve 5 and the inner corrugated sleeve 6 are expanded.

[0082] When the inner filter hole of the filter core is not blocked by impurities, the external water source enters the filter through the water inlet 111, and the water is filtered through the inner filter hole. The water filtered through the inner filter hole is discharged from the filter core through the outer cavity 29 and the second opening 26 of the filter core, and then discharged from the water outlet 121 of the filter. Figure 2 The arrow direction shows the water flow path in the filter in the initial state.

[0083] Referring to Figure 7 , as the filter is used for a long time, the inner filter hole will be blocked by impurities, which causes the water in the filter to be unable to smoothly pass through the inner filter hole, and further causes the water pressure in the filter to increase. Since there is a space between the upper part of the filter core and the inner top wall of the filter shell 1, the high-pressure water in the filter can push the slide sleeve 3 to slide downward through the space, and compress the elastic member 4, which will be described in detail below. Figure 8The sliding sleeve 3 moves downward, and the outer filter holes 21 on the outer filter screen 25 are exposed. The water in the filter is filtered through the outer filter holes 21. The filtered water is discharged from the filter core through the outer cavity 29 and the second opening 26 of the filter core, and then from the water outlet 121 of the filter. Figure 8 The arrow in the figure shows the water flow path in the filter in this state.

[0084] When the water supply to the filter is stopped, the water pressure in the filter decreases. When the water pressure in the filter decreases, the compressed elastic member 4 can drive the sliding sleeve 3 to move upward, i.e. from the Figure 8 state shown in the figure to the Figure 2 state shown in the figure. At the same time, the scraping edge 31 on the sliding sleeve 3 moves along the outer wall of the outer filter screen 25 to scrape off the impurities adhering to the outer wall of the outer filter screen 25, i.e. the Figure 4 scraping edge 31 in the figure moves upward. This can prevent the impurities from blocking the outer filter holes 21, thereby prolonging the effective use time of the filter and reducing the frequency of cleaning the filter. The impurities scraped off by the scraping edge 31 accumulate on the upper surface of the sliding sleeve 3. When the sliding sleeve 3 moves to the upper part of the filter core, the impurities on the upper surface of the sliding sleeve 3 fall along the slope into the first opening 23, so that the impurities are stored in the storage cavity 22, as described in detail in Figure 9 .

[0085] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the figures, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical solutions after these changes or replacements will all fall within the protection scope of the present application.

Claims

1. A filter, characterized by, The utility model relates to a filter, which comprises: a filter housing (1); a filter element arranged in the filter housing (1), the filter element being provided with an outer filter hole (21) arranged on an outer wall of the filter element; a sliding sleeve (3) sleeved outside the filter element, the sliding sleeve (3) being provided with a scraping edge (31) abutting against the outer wall of the filter element on an inner periphery of the sliding sleeve (3); a driving member connected to the sliding sleeve (3), the driving member being capable of driving the sliding sleeve (3) to move along the outer wall of the filter element; when the sliding sleeve (3) moves, the scraping edge (31) is capable of removing impurities on the outer wall of the filter element.

2. The filter of claim 1, wherein, The scraping edge (31) is arranged obliquely towards an upper portion of the filter element; when the sliding sleeve (3) moves upwards, the scraping edge (31) is capable of moving the impurities on the outer wall of the filter element to an upper surface of the sliding sleeve (3).

3. The filter of claim 2, wherein, The filter element is internally provided with a storage cavity (22), and an upper surface of the filter element is provided with a first opening (23) connected to the storage cavity (22); an upper surface of the sliding sleeve (3) is provided with an inclined surface facing the first opening (23), and impurities on the upper surface of the sliding sleeve (3) can fall into the storage cavity (22) along the inclined surface.

4. The filter of claim 3, wherein, The filter element comprises: an inner filter screen (24), the first opening (23) being arranged at an upper end of the inner filter screen (24), the storage cavity (22) being arranged inside the inner filter screen (24), and the inner filter screen (24) being provided with an inner filter hole; an outer filter screen (25) sleeved outside the inner filter screen (24), an upper end of the outer filter screen (25) being connected to the upper end of the inner filter screen (24), a lower end of the outer filter screen (25) being provided with a second opening (26), and the outer filter hole (21) being arranged on the outer filter screen (25); a filtering object passing through the outer filter hole (21) and the inner filter hole can be discharged from the filter element through the second opening (26).

5. The filter of claim 4, wherein, The driving member is an elastic member (4), the elastic member (4) being capable of driving the sliding sleeve (3) to move to an upper portion of the filter element; when the inner filter hole is blocked, the pressure of the filtering object in the filter housing (1) increases, the pressure being capable of driving the sliding sleeve (3) to move downwards and compress the elastic member (4); when the filtering object stops entering the filter housing (1), the pressure of the filtering object decreases, and the compressed elastic member (4) is capable of driving the sliding sleeve (3) to move upwards.

6. The filter of claim 5, wherein, The filter further comprises: an outer corrugated sleeve (5) having an upper end connected to the sliding sleeve (3) and a lower end being closed, the outer corrugated sleeve (5) being sleeved outside the elastic member (4); an inner corrugated sleeve (6) having an upper end connected to the sliding sleeve (3) and a lower end being closed, the inner corrugated sleeve (6) being arranged through the elastic member (4).

7. The filter of claim 6, wherein, The lower end of the outer corrugated sleeve (5) is provided with an outward turning edge (51), the filter housing (1) is internally provided with a supporting pad (7), and the supporting pad (7) and an inner bottom surface of the filter housing (1) clamp the outward turning edge (51) to close the lower end of the outer corrugated sleeve (5). The lower end of the inner corrugated sleeve (6) is provided with an inner flange (61), the filter element comprises a flange plate (28), the flange plate (28) and the support pad (7) clamp the inner flange (61) to close the lower end of the inner corrugated sleeve (6).

8. The filter of claim 1, wherein, The filter element comprises a reinforcing rib (27), the upper end of the reinforcing rib (27) abuts against the inner top wall of the filter shell (1) to form a space between the upper end of the filter element and the inner top wall of the filter shell (1); The filtered object in the filter shell (1) can pass through the space to push the sliding sleeve (3) to move.

9. The filter of claim 1, wherein, The outlet area of the outer filter hole (21) is larger than the inlet area of the outer filter hole (21). 10.A laundry treating apparatus, characterized by, The device comprises a device body (8) and a filter as claimed in any one of claims 1-9, the device body (8) is connected to the filter.

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