A centrifugal drainage mechanism and a washing machine

Abstract

The present invention discloses a centrifugal drainage mechanism and a washing machine. The centrifugal drainage mechanism includes a centrifugal component and a valve plug component. The centrifugal component includes a counterweight portion and a connecting portion. The counterweight portion includes a counterweight block housing and a counterweight block disposed within the counterweight block housing. One end of the connecting portion is connected to the counterweight block housing, the other end is rotatably connected to the valve plug component, and the middle portion is rotatably supported and fixed to form a lever structure. The counterweight block generates a centrifugal motion under the action of centrifugal force, driving the valve plug component to actuate to open the drainage port on the inner tub for drainage. The centrifugal drainage mechanism provided by the present invention effectively avoids the phenomenon that the counterweight block is directly in contact with the washing water, which is prone to rust and corrosion and affects the normal operation of the centrifugal drainage mechanism, by providing a counterweight block housing outside the counterweight block to wrap the counterweight block therein.

Description

Technical Field

[0001] The present invention relates to the technical field of laundry equipment, and in particular to a centrifugal drainage mechanism and a washing machine. Background Art

[0002] In the existing drum washing machine, the outer drum holds water, the inner drum rotates for washing, and holes are provided on the inner drum wall for introducing washing water into the inner drum or dehydrating the clothes in the inner drum. The washing water flows between the inner and outer drums for a long time, resulting in dirt and scale accumulation between the inner and outer drum interlayers, causing a large number of bacteria to multiply, causing secondary pollution to the clothes, seriously threatening the health of consumers, and the filling of water between the inner and outer drum interlayers also causes useless water waste. Therefore, a washing machine with a non-porous inner drum has been designed. Since the inner drum is not only used to hold the washing water but also rotates to beat and clean the clothes in the drum, how to set up a dehydration structure and a drainage structure suitable for the above washing machine has become an urgent problem to be solved.

[0003] The Chinese invention patent application with the application number 201810163972.0 discloses a sealing valve spool structure and a self-cleaning washing machine. The sealing valve spool structure includes a valve plug column correspondingly installed at a drainage port provided on the side wall of the inner drum, and a counterweight block hinged to the upper end of the valve plug column; the upper end of the counterweight block is provided with a connecting rib protruding axially upward, and the end of the connecting rib is hinged to the upper end of the valve plug column. By using the action of the counterweight block under the action of centrifugal force to correspondingly open the drainage port, the valve plug column can also be pulled back to its original position by using a return spring to make the spool correspondingly block the drainage port, thereby achieving the purpose of correspondingly opening and closing the drainage port by the action of the centrifugal force of the high-speed rotation of the inner drum on the valve plug column.

[0004] The above-mentioned self-cleaning washing machine proposed in the application solves the drainage problem of the non-porous drum washing machine by adopting a sealing valve for centrifugal drainage. However, it has the following defects: First, the counterweight block is directly placed in the installation chamber inside the lifting rib. Since most of the counterweight blocks are made of metal, the washing water in the inner drum will directly contact the counterweight block, making the counterweight block prone to rust and corrosion. Second, the connection structure between the counterweight block and the valve plug column is a long strip-shaped connecting rib. The contact area between the connecting rib and the counterweight block is small, and there is no effective strengthening structure between the two, so the strength is insufficient. In the case of the long-term centrifugal movement of the counterweight block, the position where the connecting rib is connected to the counterweight block is extremely prone to breakage.

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

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a centrifugal drainage mechanism that can effectively solve the problem that the counterweight block is prone to rust and corrosion due to contact with the washing water, affecting the normal operation of the centrifugal drainage mechanism.

[0007] To achieve this object, according to one aspect of the present invention, the present invention adopts the following technical solutions:

[0008] A centrifugal drainage mechanism includes a centrifugal component and a valve plug component. The centrifugal component includes a counterweight part and a connecting part. The counterweight part includes a counterweight block shell and a counterweight block arranged inside the counterweight block shell;

[0009] One end of the connecting part is connected to the counterweight block shell, the other end is rotatably connected to the valve plug component, and the middle part is rotatably supported and fixed to form a lever structure;

[0010] The counterweight block generates a centrifugal motion under the action of centrifugal force, driving the valve plug component to act to open the drainage port on the inner cylinder for drainage.

[0011] Further, the end of the connecting part connected to the valve plug component is arranged to gradually expand outward towards the end connected to the counterweight block shell.

[0012] Further, the connecting part is a plate-like structure with a triangular cross-section. One side edge of the connecting part is connected and fixed to the side wall of the counterweight block shell close to the valve plug component;

[0013] Preferably, the longitudinal cross-section of the connecting part is triangular.

[0014] Further, a strengthening structure for improving strength is arranged at the connection position between the connecting part and the counterweight block shell. The strengthening structure is a plate-like reinforcing rib connected between the connecting part and the counterweight block shell;

[0015] Preferably, there are at least two plate-like reinforcing ribs, which are arranged on the left and right sides of the connecting part.

[0016] Further, the connecting part has an extended connecting rib protruding. The extended connecting rib is formed by extending from the upper edge of the connecting part towards the counterweight part;

[0017] The extended connecting rib has a certain extension length, and the lower side surface of the extended connecting rib is fixedly connected to the upper side wall surface of the counterweight block shell.

[0018] Further, the counterweight block shell and the connecting part are integrally formed by injection molding.

[0019] Further, the counterweight block is made of a metal material, and the counterweight block shell is made of a corrosion-resistant non-metallic material;

[0020] Preferably, the counterweight block shell is made of a plastic material.

[0021] Further, along the length direction of the counterweight, the counterweight shell includes a peripheral side wall with open ends at both ends, and a first end side wall and a second end side wall arranged at both ends of the peripheral side wall. One end of the connecting portion is fixedly connected to the first end side wall / the second end side wall;

[0022] The peripheral side wall includes a first side wall, a second side wall, a third side wall and a fourth side wall that are sequentially connected end to end, and the connections of the first side wall, the second side wall, the third side wall and the fourth side wall are smoothly transitionally connected.

[0023] Further, there is a gap between the counterweight shell and the outer wall of the counterweight, and the gap is filled with a sealing medium;

[0024] Preferably, the sealing medium is a colloid, and the gap between the counterweight and the counterweight shell is filled with glue to bond the counterweight and the counterweight shell into one body.

[0025] Another object of the present invention also provides a washing machine having any one of the above-described centrifugal drainage mechanisms, including:

[0026] An inner tub that independently holds washing water when washing clothes;

[0027] A laundry lifting device, and the laundry lifting device is installed on the drain opening on the inner wall of the inner tub;

[0028] The centrifugal drainage mechanism is installed in the lifting housing of the laundry lifting device to block and close the drain opening, and the centrifugal drainage mechanism can open the drain opening for drainage under the action of centrifugal force.

[0029] After adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art:

[0030] 1. For the centrifugal drainage mechanism provided by the present invention, by arranging a counterweight shell outside the counterweight and wrapping the counterweight therein, it effectively avoids the phenomenon that the counterweight is directly in contact with the washing water, which is prone to rust and corrosion and affects the normal operation of the centrifugal drainage mechanism.

[0031] 2. For the centrifugal drainage mechanism provided by the present invention, one end of the connecting portion connecting the valve plug component is gradually expanded outward toward the end connecting the counterweight shell, increasing the connection area between the connecting portion and the counterweight shell, with higher strength and better stability.

[0032] 2. For the centrifugal drainage mechanism provided by the present invention, plate-shaped reinforcing ribs are also arranged on both sides of the connecting portion, further strengthening the strength of the connection between the connecting portion and the counterweight shell, and effectively avoiding the phenomenon that the connection position between the connecting portion and the counterweight portion is prone to breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1It is a partial cross-sectional view of the washing machine when the centrifugal drainage mechanism in the present invention is in a closed state;

[0034] Figure 2 It is a partial cross-sectional view of the washing machine when the centrifugal drainage mechanism in the present invention is in an open state;

[0035] Figure 3 It is a schematic structural diagram of the clothing lifting device in the present invention at one angle;

[0036] Figure 4 It is a schematic structural diagram of the clothing lifting device in the present invention at another angle

[0037] Figure 5 It is a schematic structural diagram of the clothing lifting device in the present invention with the encapsulation baffle removed;

[0038] Figure 6 It is a schematic structural diagram of the clothing lifting device in the present invention with the lifting housing removed;

[0039] Wherein:

[0040] 40, inner cylinder; 401, drain port;

[0041] 50, lifting housing; 51, top wall; 52, peripheral side wall; 521, water inlet; 53, bolt column;

[0042] 501, installation chamber; 502, filtering chamber; 5021, comb-shaped filtering structure; 5022, opening; 5023, guide plate; 503, drainage chamber;

[0043] 60, encapsulation baffle; 601, first flanging; 602, second flanging; 603, special-shaped grid partition ribs; 604, first pressing structure; 6041, second buffer pad; 6042, water discharge hole; 6043, buffer cone angle; 6044, pressing bottom wall; 605, bolt;

[0044] 611, first baffle; 612, second baffle; 613, third baffle;

[0045] 70, centrifugal drainage mechanism;

[0046] 71, centrifugal component; 711, counterweight part; 7111, counterweight block; 7112, counterweight block shell; 7113, chamfered structure; 712, connecting part; 7121, plate-shaped reinforcing rib; 7122, extending connecting rib; 713, first buffer pad;

[0047] 72, valve plug component; 721, valve plug column; 722, valve plug; 723, mounting seat; 724, rotating shaft bracket. Detailed implementation manners

[0048] To make the objectives, 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 with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0049] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0050] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The present invention will be further described in detail below with reference to the embodiments.

[0052] Example 1

[0053] This embodiment provides a centrifugal drainage mechanism, mainly to solve the problems that the centrifugal components of the existing centrifugal drainage mechanism are prone to rust and corrosion, and the connection stability between the components of the centrifugal components is poor.

[0054] As Figures 1-6 shown, the centrifugal drainage mechanism 70 provided in this embodiment includes a centrifugal component 71 and a valve plug component 72. The centrifugal component 71 includes a counterweight portion 711 and a connecting portion 712. The counterweight portion 711 includes a counterweight block shell 7112 and a counterweight block 7111 disposed inside the counterweight block shell 7112.

[0055] By adding a counterweight block shell 7112 outside the counterweight block 7111, the counterweight block shell 7112 wraps the counterweight block 7111 therein, effectively avoiding the phenomenon that the counterweight block 7111 is directly in contact with the washing water, prone to rust and corrosion, and affecting the normal operation of the centrifugal drainage mechanism 70. At the same time, the provided counterweight block shell 7112 also plays a certain protective role to prevent the counterweight block 7111 from being damaged during centrifugal motion.

[0056] As Figure 1 、 Figure 2 And Figure 5As shown, one end of the connecting portion 712 of the centrifugal drainage mechanism 70 is connected to the counterweight housing 7112, and the other end is rotatably connected to the valve plug component 72. The middle portion of the connecting portion 712 is rotatably supported and fixed to form a lever structure. The connecting portion 712 is fixedly connected to the counterweight housing 7112, which is easier to process and form compared to directly being fixedly connected to the counterweight 7111. The counterweight 7111 generates a centrifugal motion under the action of centrifugal force, driving the valve plug component 72 to actuate and open the drainage port 401 on the inner cylinder 40 for drainage.

[0057] Further, as shown in Figure 1 and Figure 2 As shown, the end of the connecting portion 712 connecting the valve plug component 72 is arranged to gradually expand outward toward the end connecting the counterweight housing 7112. By arranging the end of the connecting portion 712 connecting the valve plug component 72 to gradually expand outward toward the end connecting the counterweight housing 7112, the connection area between the connecting portion 712 and the counterweight housing 7112 is increased, making the strength between the connecting portion 712 and the counterweight housing 7112 higher and the stability better.

[0058] Further, in this embodiment, the connecting portion 712 is a plate-like structure with a triangular cross-section, and one side edge of the connecting portion 712 is fixedly connected to the side wall of the counterweight housing 7112 close to the valve plug component 72.

[0059] The connecting portion 712 can be in the shape of a right triangle. One right side of the connecting portion 712 is fixedly connected to the outer wall surface of the counterweight housing 7112, and the width of the connecting portion 712 gradually increases from the end connecting the valve plug component 72 to the end connecting the counterweight housing 7112. The stability of the triangle is higher, and the connection area between the connecting portion 712 and the counterweight housing 7112 is larger, so the stability is better.

[0060] Preferably, the longitudinal cross-section of the connecting portion 712 is triangular, and the connecting portion 712 is a longitudinally arranged triangular plate-like structure. Compared with setting the connecting portion 712 as a horizontally arranged triangular plate-like structure, the connecting portion 712 requires the smallest reserved activity space when rotating up and down with the counterweight portion 711, improving the space utilization rate inside the lifting housing 50.

[0061] Further, in combination with Figure 1 and Figure 5 As shown, a strengthening structure for improving strength is provided at the connection position between the connecting portion 712 and the counterweight housing 7112. The strengthening structure is a plate-like reinforcing rib 7121 connected between the connecting portion 712 and the counterweight housing 7112.

[0062] Preferably, there are at least two plate-shaped reinforcing ribs 7121, which are arranged on the left and right sides of the connecting part 712. The plate-shaped reinforcing rib 7121 is triangular, and two adjacent sides are respectively connected to the connecting part 712 and the counterweight block shell 7112.

[0063] By additionally arranging the plate-shaped reinforcing ribs 7121 on both sides of the connecting part 712, the strength of the connection between the connecting part 712 and the counterweight block shell 7112 is further enhanced, effectively avoiding the phenomenon that the connection position between the connecting part 712 and the counterweight part 711 is prone to fracture.

[0064] Furthermore, as Figure 5 shown, the connecting part 712 is provided with a protruding extended connecting rib 7122, which extends from the upper edge of the connecting part 712 towards the counterweight part 711; the extended connecting rib 7122 has a certain extended length, and the lower side surface of the extended connecting rib 7122 is fixedly connected to the upper side wall surface of the counterweight block shell 7112.

[0065] By arranging the extended connecting rib 7122 to be fixedly connected from the upper side surface of the counterweight block shell 7112, the counterweight block shell 7112 is connected and fixed from two direction angles of the upper side surface and the right side surface of the counterweight block shell 7112, further increasing the stability of the connection between the connecting part 712 and the counterweight block shell 7112.

[0066] Furthermore, in this embodiment, the counterweight block shell 7112 and the connecting part 712 are connected and fixed by means of melting or bonding, etc. Preferably, the counterweight block shell 7112 and the connecting part 712 are integrally formed by injection molding, and the counterweight block shell 7112 and the connecting part 712 are integrally injection molded parts.

[0067] Furthermore, the counterweight block shell 7112 has a closed accommodating cavity for accommodating and installing the counterweight block 7111. The counterweight block 7111 is made of a metal material, and the counterweight block shell 7112 is made of a corrosion-resistant non-metallic material, and the counterweight block shell 7112 will not rust or corrode.

[0068] Preferably, the counterweight block shell 7112 is made of a high-hardness plastic material, which not only has good corrosion resistance but also has a relatively high strength, reducing the load of the inner cylinder 40.

[0069] Furthermore, along the length direction of the counterweight block 7111, the counterweight block shell 7112 includes a circumferential side wall with both ends being open, and a first end side wall and a second end side wall arranged at both ends of the circumferential side wall. One end of the connecting part 712 is fixedly connected to the first end side wall / the second end side wall.

[0070] The circumferential side wall of the counterweight housing 7112 includes a first side wall, a second side wall, a third side wall, and a fourth side wall that are sequentially connected end to end. The connecting parts of the first side wall, the second side wall, the third side wall, and the fourth side wall are smoothly transitionally connected, and the adjacent side walls are smoothly transitionally connected to avoid right-angle connection, which is easy for other components to scrape and collide.

[0071] Furthermore, in one implementation, there is a gap between the outer wall of the counterweight housing 7112 and the counterweight 7111, and the gap is filled with a sealing medium. By filling the sealing medium into the gap between the outer wall of the counterweight housing 7112 and the counterweight 7111, the probability that the washing water will enter the accommodating cavity of the counterweight housing 7112 and contact the counterweight 7111 is further reduced.

[0072] Preferably, the sealing medium is a glue. Glue is poured into the gap between the counterweight 7111 and the counterweight housing 7112 to bond the counterweight 7111 and the counterweight housing 7112 together. The use of glue as the sealing medium not only achieves the sealing effect but also plays a role in connecting and fixing, bonding the counterweight 7111 and the counterweight housing 7112 together to prevent the counterweight 7111 from shaking up and down inside the counterweight housing 7112.

[0073] This embodiment also provides a washing machine having the above-mentioned centrifugal drainage mechanism 70, including:

[0074] An inner drum 40 that independently holds washing water when washing clothes;

[0075] A laundry lifting device installed on the drain opening 401 of the inner wall of the inner drum 40;

[0076] The centrifugal drainage mechanism 70 is installed in the lifting housing 50 of the laundry lifting device to block and close the drain opening 401, and the centrifugal drainage mechanism 70 can open the drain opening 401 for drainage under the action of centrifugal force.

[0077] Example 2

[0078] This embodiment provides a laundry lifting device having the centrifugal drainage mechanism described in the first embodiment above, mainly to solve the problem that the components of the centrifugal drainage mechanism installed in the existing laundry lifting device are easily attached and wound with lint, resulting in the centrifugal drainage mechanism not closing properly or being unable to drain water normally.

[0079] As Figures 1-6 shown, this embodiment provides a laundry lifting device for a washing machine, including:

[0080] A lifting housing 50 with an open cavity inside;

[0081] The centrifugal drainage mechanism 70 is installed inside the lifting housing 50, as Figure 1 , Figure 5 shown. The initial state of the centrifugal drainage mechanism 70 is a closed state, plugging and closing the drainage port 401 on the inner cylinder 40, as Figure 2 , Figure 5 shown. The centrifugal drainage mechanism 70 can be actuated under the action of centrifugal force to open the drainage port 401 for drainage;

[0082] Combined with Figure 1 , Figure 2 and Figure 6 shown, an independently enclosed installation chamber 501 is spaced in the cavity of the lifting housing 50, and at least part of the centrifugal drainage mechanism 70 is installed in the installation chamber 501.

[0083] Since the lifting housing 50 is provided with a water inlet 521 for the washing water in the inner cylinder 40 to flow into the lifting housing 50, the cavity of the lifting housing 50 is communicated with the inside of the inner cylinder 40. When the centrifugal drainage mechanism 70 is directly installed in the cavity of the lifting housing 50, lint will inevitably enter the lifting housing 50 along with the water flow during the washing process, and then enter the centrifugal drainage mechanism 70.

[0084] In this embodiment, the centrifugal drainage mechanism 70 is installed through an independently enclosed installation chamber 501 additionally provided in the cavity of the lifting housing 50. The installation chamber 501 can play a role in secondarily blocking lint from entering the centrifugal drainage mechanism 70. The lint in the inner cylinder 40 will not enter the installation chamber 501 along with the water flow, making the centrifugal drainage mechanism 70 in a lint-free environment, fundamentally avoiding the possibility of lint adhesion and entanglement, and effectively ensuring the reliability of the operation of the centrifugal drainage mechanism 70.

[0085] Furthermore, a plurality of partition plates are fixedly provided in the lifting housing 50, and an independently enclosed installation chamber 501 is spaced in the lifting housing 50 through the partition plates. The partition plates can be integrally injection-molded with the lifting housing 50 to form the independently enclosed installation chamber 501; alternatively, the partition plates can be integrally connected to the lifting housing 50 through connectors to form the independently enclosed installation chamber 501.

[0086] Specifically, the partition plate includes a partition baffle that divides the cavity of the lifting housing 50 to form an installation chamber 501 with an open lower end, and a packaging baffle 60 that is encapsulated on the open lower end of the partition baffle to form the independently enclosed installation chamber 501. The centrifugal component 71 of the centrifugal drainage mechanism 70 is arranged in the installation chamber 501.

[0087] By means of a partition baffle and a packaging baffle 60 arranged in the lifting housing 50, an independently enclosed installation chamber 501 is separated in the cavity of the lifting housing 50, and the centrifugal component 71 of the centrifugal drainage mechanism 70 is arranged in the installation chamber 501. The partition baffle and the packaging baffle 60 play a role in secondarily blocking impurities and lint from entering the installation chamber 501 along with the washing water.

[0088] In this embodiment, the packaging baffle 60 and the partition baffle can be in a closed plate-like structure, so that the installation chamber 501 is a sealed chamber, and the water in the inner cylinder 40 will not enter the installation chamber 501, thereby avoiding lint and impurities from entering the installation chamber 501.

[0089] Alternatively, in another solution, the packaging baffle 60 and the partition baffle can also be in a plate-like structure with a plurality of filter holes. The packaging baffle 60 and the partition baffle play a role in secondarily filtering the lint in the washing water. The water in the inner cylinder 40 can enter the installation chamber 501 through the filter holes, but the lint will be blocked outside and will not enter the installation chamber 501.

[0090] Preferably, in this embodiment, the packaging baffle 60 and the partition baffle are in a closed plate-like structure. While playing a role in blocking lint from entering the installation chamber 501, they can also effectively block the washing water from entering the installation chamber 501, further ensuring the reliability of the operation of the centrifugal drainage mechanism 70.

[0091] Furthermore, the lifting housing 50 includes a top wall 51 and a peripheral side wall 52 connected between the top wall 51 and the inner wall of the washing machine inner cylinder 40. The distance between the packaging baffle 60 and the top wall 51 of the lifting housing 50 is less than the distance between the top wall 51 of the lifting housing 50 and the inner wall of the inner cylinder 40.

[0092] There is a gap space between the bottom wall of the packaging baffle 60 and the inner wall of the inner cylinder 40. The gap space formed between the lower wall surface of the packaging baffle 60 and the inner wall surface of the inner cylinder 40 is a drainage chamber 503 for discharging washing water. The drainage chamber 503 is respectively communicated with the inside of the inner cylinder 40 and the drainage port 401 on the inner cylinder 40. The washing water in the inner cylinder 40 can enter the drainage port 401 on the inner cylinder 40 through the drainage chamber 503 and then be discharged from the drainage port 401.

[0093] Such as Figure 1 、 Figure 2 、 Figure 5As shown, the partition baffle includes a first baffle 611 and a second baffle 612 that are oppositely arranged inside the lifting housing 50 along the length direction of the lifting housing 50. The first baffle 611 and the second baffle 612 are respectively connected to the top wall 51 and the peripheral side wall 52 of the lifting housing 50, and the first baffle 611 and the second baffle 612 are integrally injection-molded with the lifting housing 50.

[0094] The relative distance between the first baffle 611 and the second baffle 612 is less than the length of the lifting housing 50. Along the length direction of the lifting housing 50, the length of the installation chamber 501 is less than the length of the lifting housing 50.

[0095] Preferably, the installation chamber 501 is located at a position close to one end of the lifting housing 50. Compared with being arranged at the middle position of the lifting housing 50, it can provide a larger installation space for installing the filtering component in the lifting housing 50.

[0096] Further, as Figure 2 、 Figure 3 、 Figure 6 shown, the peripheral side wall 52 includes a first side wall and a second side wall connected to the two long edges of the top wall 51. At least part of the lower edges of the first side wall and the second side wall are correspondingly provided with notches to form a water inlet 521 for water inlet. The water inlet 521 communicates with the drain port 401 on the inner cylinder 40 and the inner chamber of the inner cylinder 40.

[0097] The lower edges of the first side wall and the second side wall are correspondingly provided with the notches. The notches have a certain axial extension length and are in a long strip shape. The encapsulation baffle 60 is embedded and installed in the notches of the first side wall and the second side wall.

[0098] The upper edges of the first baffle 611 and the second baffle 612 are connected to the top wall 51 of the lifting housing 50, and the two side edges are respectively connected to the first side wall and the second side wall of the lifting housing 50.

[0099] Preferably, a third baffle 613 is further provided in the lifting housing 50. The first baffle 611 and the third baffle 613 are arranged at positions close to the two ends of the lifting housing 50. The first baffle 611 / second baffle 612 partitions three spaces in the cavity of the lifting housing 50. The spaces on both outer sides of the first baffle 611 / second baffle 612 are for independently arranging the installation structure of the lifting housing 50.

[0100] The lower edges of the first side wall and the second side wall of the lifting housing 50 between the first baffle 611 and the third baffle 613 are provided with notches, and the encapsulation baffle 60 is installed in the installation position formed by the first baffle 611, the second baffle 612, the first side wall and the second side wall. The second baffle 612 is arranged in the lifting housing 50 between the first baffle 611 and the third baffle 613, and the lower edge of the second baffle 612 extends to the upper wall surface of the encapsulation baffle 60. Taking the installation chamber 501 being arranged in the lifting housing 50 near the mouth end of the inner cylinder 40 as an example, the first baffle 611 is arranged near the mouth side, and the installation chamber 501 is formed between the second baffle 612, the first baffle 611 and the inner wall surface of the encapsulation baffle 60.

[0101] In one embodiment, as Figures 3 to 6 shown, for the clothes lifting device provided in this embodiment, special-shaped grid baffles 603 that can make the washing and discharging water flow through at a certain bending angle are arranged below both sides of the encapsulation baffle 60 corresponding to the water inlet 521. When the washing water flows through the water inlet 521, lint will be blocked and attached to the special-shaped grid baffles 603 and will not enter the drainage chamber 503.

[0102] Preferably, there are multiple special-shaped grid baffles 603, which are arranged at intervals along the two long edges of the encapsulation baffle 60. Through the multiple special-shaped grid baffles 603 arranged at intervals along the two long edges of the encapsulation baffle 60, lint can be effectively blocked from entering the drainage chamber 503 to block the drainage port 401, avoiding the phenomenon that lint adheres to the centrifugal drainage mechanism 70 or blocks the drainage port 401, affecting normal drainage.

[0103] Further, the special-shaped grid baffles 603 are arc-shaped grid ribs with an arc-shaped bending angle. For example, the special-shaped grid baffles 603 can be in the shape of a forward "S" or a reverse "S"; or, the special-shaped grid baffles 603 are folded grid ribs with a straight bending angle. For example, the special-shaped grid baffles 603 can be in the shape of "<" or ">"; when the washing water flows through the special-shaped grid baffles 603, lint will be blocked at the arc-shaped bending angle or the straight bending angle of the special-shaped grid baffles 603 and will not enter the drainage chamber 503.

[0104] Further, the gap space between two adjacent special-shaped grid baffles 603 forms a diversion channel. By setting the bending angle, the diversion channel forms an arc-shaped diversion channel from the inlet to the outlet, which on the one hand plays a role in blocking and filtering lint, and on the other hand plays a role in changing the direction and increasing the water flow velocity.

[0105] Preferably, the outlet end of the special-shaped grid baffle rib 603 is bent or folded towards the drain port 401 to guide the water flow for drainage to converge towards the drain port 401.

[0106] For example, if the special-shaped grid baffle rib 603 is an arc-shaped grid rib in a forward "S" shape or a reverse "S" shape, the arc-shaped grid rib below the left side of the drain port 401 is in a forward "S" shape, the arc-shaped grid rib below the right side of the drain port 401 is in a reverse "S" shape, the arc-shaped grid rib above the left side of the drain port 401 is in a reverse "S" shape, and the arc-shaped grid rib above the right side of the drain port 401 is in a forward "S" shape.

[0107] Also for example, if the special-shaped grid baffle rib 603 is a folded grid rib in a "<" or ">" shape, the folded grid rib below the left side of the drain port 401 is in a forward "<" shape, the arc-shaped grid rib below the right side of the drain port 401 is in a ">" shape, the arc-shaped grid rib above the left side of the drain port 401 is in a reverse "<" shape, and the arc-shaped grid rib above the right side of the drain port 401 is in a forward ">" shape.

[0108] Through the above design, the gap space between the two special-shaped grid baffle ribs 603 forms a direction where the outlet end of the diversion channel faces the drain port 401, facilitating the collection of water flow.

[0109] Preferably, the arc-shaped grid rib / folded grid rib respectively has a plurality of arc-shaped bending angles / straight folding angles. By setting the plurality of bending angles or folding angles, the water flow is bent multiple times, and the effect of blocking wire chips is better.

[0110] Alternatively, the arc-shaped grid rib / folded grid rib is a multi-layer structure arranged with upper and lower layers offset. By setting the multi-layer arc-shaped grid rib / folded grid rib, the water flow is bent multiple times, and the effect of blocking wire chips is better.

[0111] Moreover, in the above solution, the arc-shaped grid rib / folded grid rib is arranged with upper and lower layers offset. The upper arc-shaped grid rib / folded grid rib is arranged at the position between two grid ribs in the lower layer. If the wire chips pass through the diversion channel between the two grid ribs in the lower layer, the grid rib in the upper layer can play a role in blocking the wire chips from passing through a second time, further preventing the wire chips from entering the drainage cavity 503 of the lifting housing 50.

[0112] In another embodiment, the special-shaped grid baffle rib 603 includes a longitudinal rib and a plurality of guiding ribs arranged on both sides of the longitudinal rib. The guiding ribs on adjacent two longitudinal ribs are arranged in an interleaved manner. By arranging the plurality of guiding ribs on both sides of the longitudinal rib, a bent diversion channel is formed, which plays an effective role in blocking wire chips.

[0113] The guiding ribs can be horizontal transverse ribs. Preferably, the guiding ribs are inclined, and the guiding ribs are inclined ribs inclined towards the outlet of the diversion channel, which plays a role in guiding the water flow.

[0114] More preferably, the guiding ribs at the outlet end of the diversion channel are inclined towards the drain port 401 of the inner cylinder 40, facilitating the convergence and discharge of the water flow towards the drain port 401.

[0115] The laundry lifting device for a washing machine provided in this embodiment can effectively prevent lint from entering the drain cavity 503 and blocking the drain port 401 by the special-shaped grid blocking ribs 603 provided at the water inlet 521 of the lifting housing 50, which can make the washing and discharging water flow through at a certain bending angle, avoiding the phenomenon that lint adheres to the centrifugal drainage mechanism 70 or blocks the drain port 401, affecting normal drainage.

[0116] Furthermore, the first spaced space formed between the encapsulation baffle 60, the partition baffle and the inner wall of the lifting housing 50 is the installation chamber 501. A second spaced space is formed between the outer wall of the partition and the inner wall of the lifting housing 50 and the inner wall of the inner cylinder 40 located outside the drain port 401. The second spaced space is respectively communicated with the inside of the inner cylinder 40 and the drain port 401 opened on the inner cylinder 40, and the water flow in the inner cylinder 40 is discharged from the drain port 401 through the second spaced space.

[0117] Preferably, the second spaced space includes a drain cavity 503 located below the encapsulation baffle 60. The installation chamber 501 is located at a position close to the end of the lifting housing 50. The second spaced space further includes a filter cavity 502 formed between the outer side of the first baffle 611 / second baffle 612 and the inner wall of the lifting housing 50, and a filtering structure is installed in the filter cavity 502.

[0118] As Figure 1 、 Figure 2 and Figure 6 shown, in this embodiment, the filter cavity 502 is formed by the space between the right side surface of the second baffle 612 and the inner wall surface of the lifting housing 50. A plurality of through holes are opened on the top wall 51 or the circumferential side wall 52 of the lifting housing 50 corresponding to the filter cavity 502, and the through holes are communicated with the filter cavity 502. Preferably, the through holes are opened on the top wall 51 of the lifting housing 50. The filter cavity 502 exchanges water flow with the water flow in the inner cylinder 10 through the through holes provided on the lifting housing 50, and the drain cavity 503 diverts the water in the inner cylinder 40 towards the drain port 401 opened on the inner cylinder 40.

[0119] Furthermore, as Figure 1 、 Figure 5As shown, the centrifugal drainage mechanism 70 further includes a valve plug component 72. The valve plug component 72 includes a valve plug column 721 coaxially arranged with the drain port 401 and a valve plug 722 connected to the lower end of the valve plug column 721. In the natural state, the valve plug 722 blocks the drain port 401 to ensure the sealing performance of the inner cylinder 40. A valve plug through hole for the valve plug column 721 to pass through is provided at a position corresponding to the drain port 401 on the encapsulation baffle 60.

[0120] The centrifugal component 71 includes a weight portion 711 and a connecting portion 712 located in the installation chamber 501. One end of the connecting portion 712 is fixedly connected to the weight portion 711, and the other end is hinged to the upper end of the valve plug column 721. The middle part of the connecting portion 712 is rotatably supported and fixed to form a lever structure.

[0121] The hinge point of the connecting portion 712 and the valve plug column 721 is located in the installation chamber 501. Under the action of centrifugal force, the weight portion 711 moves downward. Using the lever principle, it will drive the valve plug column 721 to move upward, thereby opening the drain port 401 on the inner cylinder 40 by the valve plug 722 for drainage.

[0122] The weight portion 711 and the connecting portion 712 of the centrifugal component 71, as well as the hinge points of the connecting portion 712 and the valve plug column 721, are all provided in the installation chamber 501, effectively preventing lint from winding and adhering to the weight portion 711 or the hinge positions of the connecting portion 712 and the valve plug column 721, which affects the normal operation of the centrifugal drainage mechanism 70.

[0123] Preferably, a sleeve-shaped mounting seat 723 is installed on the upper side of the encapsulation baffle 60. The inner through hole of the mounting seat 723 is coaxially arranged with the valve plug through hole on the encapsulation baffle 60. The valve plug column 721 is arranged in the mounting seat 723 so as to be movable up and down. A water sealing structure is provided on the valve plug column 721 and / or the mounting seat 723. By means of the provided water sealing structure, it can further prevent lint from entering the installation chamber 501 along with the washing water, enabling the centrifugal drainage mechanism 70 to be in a lint-free environment and reducing the possibility of lint adhesion and winding.

[0124] As Figure 1 and Figure 2As shown, a rotating shaft hole or a rotating shaft is provided in the middle of the connecting portion 712. A rotating shaft bracket 724 extends near the counterweight portion 711 side of the mounting seat 723. The rotating shaft bracket 724 is rotationally supported and cooperated with the rotating shaft hole of the connecting portion 712. When the counterweight portion 711 rotates up and down around the fulcrum of the rotating shaft bracket 724 and the connecting portion 712 under the action of centrifugal force, it drives the valve plug 722 to move up and down in the second spaced space between the lower side wall of the encapsulation baffle 60 and the inner wall of the inner cylinder 40, so as to open or close the drain port 401.

[0125] Further, as Figure 3 、 Figure 4 、 Figure 6 shown, bolt holes are provided on the encapsulation baffle 60. Bolt columns 53 are injection molded on the inner wall of the lifting housing 50. The encapsulation baffle 60 is threadedly connected to the bolt columns 53 through bolts 605 passing through the bolt holes, and the encapsulation baffle 60 is firmly installed at the lower side opening of the partition baffle.

[0126] Specifically, four bolt holes are respectively provided at the four corner positions of the encapsulation baffle 60. Four downwardly extending bolt columns 53 are injection molded corresponding to the inner wall of the lifting housing 50. The encapsulation baffle 60 is firmly installed at the lower end of the lifting housing 50 through bolts 605.

[0127] Preferably, as Figure 1 、 Figure 2 shown, the encapsulation baffle 60 is provided with a first flanging 601 / second flanging 602 that is respectively in abutting and limiting cooperation with the first baffle 611 / second baffle 612. A first flanging 601 is formed by the side edge of the encapsulation baffle 60 close to the first baffle 611 extending downward. The outer wall surface of the first flanging 601 is in close abutting cooperation with the inner wall surface of the first baffle 611. A second flanging 602 extending upward is provided at the position corresponding to the second baffle 612 on the encapsulation baffle 60. The second flanging 602 wraps the lower edge of the second baffle 612 therein. The outer wall surface of the second baffle 612 is in close abutting cooperation with the inner wall surface of the second flanging 602.

[0128] Through the structures of the first flanging 601 and the second flanging 602 provided, the encapsulation baffle 60 is tightly cooperated with the first baffle 611 and the second baffle 612. Through the contact method of surface-to-surface abutment, the sealing effect at the junction position is ensured, and it is avoided that lint enters the installation chamber 501 along with the washing water from the connection positions of the first baffle 611 and the second baffle 612 and the encapsulation baffle 60.

[0129] This embodiment also provides a washing machine with the above-mentioned laundry lifting device, including:

[0130] Inner cylinder 40;

[0131] The inner cylinder door is installed at the opening of the inner cylinder 40 and can be opened / closed. When the inner cylinder door is closed, it forms an independent washing chamber together with the inner cylinder 40, and the washing water is independently contained when washing clothes.

[0132] A drain port 401 is provided on the side wall of the inner cylinder 40. The clothes lifting device is installed on the drain port 401 on the inner wall of the inner cylinder 40, and the centrifugal drainage mechanism 70 can close / open the drain port 401.

[0133] Example 3

[0134] On the basis of Embodiment 1 or Embodiment 2, this embodiment provides an improved clothes lifting device for a washing machine, mainly to solve the problem that when the counterweight part 711 of the centrifugal drainage mechanism 70 makes a centrifugal motion, it is easy to hit the side wall of the inner cylinder 40 or the installation chamber 501, generating noise.

[0135] As Figures 1 to 6 shown, this embodiment provides a clothes lifting device for a washing machine, including:

[0136] A lifting housing 50 with an open cavity inside;

[0137] A centrifugal drainage mechanism 70 is arranged in the lifting housing 50, including a centrifugal component 71 and a valve plug component 72 connected to the centrifugal component 71;

[0138] The centrifugal component 71 includes a counterweight part 711 that can generate a centrifugal motion under the action of centrifugal force, and the centrifugal motion of the counterweight part 711 drives the valve plug component 72 to act;

[0139] An installation chamber 501 for installing the centrifugal drainage mechanism 70 is provided in the cavity of the lifting housing 50, and a buffer structure is arranged in the installation chamber 501 and / or on the counterweight part 711.

[0140] The clothes lifting device for a washing machine provided by the present invention effectively avoids the phenomenon that the counterweight part 711 makes a centrifugal motion and hits the side wall of the inner cylinder 40 or the installation chamber 501, generating noise and affecting the user experience, by arranging a buffer structure in the installation chamber 501 in the lifting housing 50 and / or on the counterweight part 711. At the same time, the arranged buffer structure can also play a role in protecting the counterweight part 711 and prolong the service life of the centrifugal drainage mechanism 70.

[0141] Further, a packaging baffle 60 is installed at a position near the open end in the lifting housing 50. The packaging baffle 60 divides an installation chamber 501 for installing the centrifugal component 71 above the cavity of the lifting housing 50. The structure, the forming manner, and the function and effect of the installation chamber 501 and the packaging baffle 60 are the same as those in the second embodiment, and thus will not be elaborated herein.

[0142] As Figures 1 to 5 shown, the centrifugal component 71 is disposed in the installation chamber 501 above the packaging baffle 60. The buffer structure includes a first pressing structure 604 that is recessed outward at a position corresponding to the counterweight portion 711 on the packaging baffle 60. By providing the downwardly recessed first pressing structure 604 on the packaging baffle 60, a larger buffer space is provided for the downward movement of the counterweight portion 711, avoiding the phenomenon that the counterweight portion 711 impacts the packaging baffle 60 due to limited movement space, resulting in a relatively large noise.

[0143] Further, the first pressing structure 604 includes a pressing peripheral wall protruding from the lower surface of the packaging baffle 60 and a pressing bottom wall 6044. The shape and size of the pressing bottom wall 6044 are adapted to the cross-sectional shape and size of the counterweight portion 711. The first pressing structure 604 provides sufficient buffer space for the entire counterweight portion 711, protecting the counterweight portion 711 while avoiding the phenomenon of its impacting the packaging baffle 60 and generating noise.

[0144] Further, the centrifugal drainage mechanism 70 further includes a valve plug component 72 connected to the counterweight portion 711 through a lever structure. The counterweight portion 711 generates a centrifugal motion under the action of centrifugal force, driving the valve plug component 72 to actuate to open the drain port 401 on the inner cylinder 40 for drainage. The lever structure is the connecting portion 712 in the first embodiment or the second embodiment, and its specific structure and function will not be elaborated herein.

[0145] As Figure 3 and Figure 4 shown, a buffer taper angle 6043 for avoiding the lever structure is extended and provided on the side of the first pressing structure 604 close to the valve plug component 72. The cross-section of the first pressing structure 604 is in a shape similar to that of a pencil tip. A vertex angle structure that gradually inclines and extends toward the valve plug component 72 is provided at a position of the first pressing structure 604 corresponding to the lever structure, forming the buffer taper angle 6043. By providing the buffer taper angle 6043, the lever structure can be avoided, and a larger buffer space can be provided for the first pressing structure 604 for the counterweight portion 711.

[0146] Further, as Figure 1 、 Figure 2 、 Figure 5 、Figure 6 As shown, the buffer structure further includes a buffer notch provided on the side of the counterweight portion 711 away from the valve plug member 72. The end of the counterweight portion 711 is provided with a notch, which can provide a larger buffer space for the falling of the counterweight portion 711 to ensure that the centrifugal drainage mechanism 70 has sufficient movement space to open or close the drain port 401.

[0147] Preferably, in this embodiment, as Figure 5 、 Figure 6 shown, the counterweight portion 711 is in the shape of a quadrangular prism, and the buffer notch is a chamfer structure 7113 below the end of the counterweight portion 711 away from the valve plug member 72. The chamfer structure 7113 has an inclined wall surface extending from the bottom wall of the counterweight portion 711 to the left end wall of the counterweight portion 711.

[0148] Furthermore, as Figure 1 、 Figure 6 shown, the buffer structure further includes a first buffer pad 713 provided outside the bottom wall of the counterweight portion 711. The first buffer pad 713 can be made of rubber material and has good stretchability. By providing the first buffer pad 713, the requirements of buffer protection for the counterweight portion 711 are met.

[0149] The first buffer pad 713 can cover the entire outside of the bottom wall of the counterweight portion 711, and the first buffer pad 713 can be fixed on the counterweight portion 711 by bonding or clamping.

[0150] Preferably, the bottom wall of the counterweight portion 711 includes a flat wall surface and an inclined wall surface formed by the chamfer structure 7113. In order to save materials, the first buffer pad 713 is covered and provided at the position between the flat wall surface and the inclined wall surface.

[0151] Because when the counterweight portion 711 falls, the intersection position of the flat wall surface and the inclined wall surface will first contact the encapsulation baffle 60. Therefore, with the above design, the intersection position of the flat wall surface and the inclined wall surface is covered in the first buffer pad 713, which can play an effective buffer and shock protection role while minimizing materials.

[0152] Alternatively, in another solution, the first buffer pad 713 is provided outside the inclined wall surface of the chamfer structure 7113, and the first buffer pad 713 has a certain elastic stretching thickness.

[0153] Furthermore, as Figures 1 to 6As shown, the buffer structure further includes a second buffer pad 6041 disposed on the press bottom wall 6044 of the first press structure 604. The second buffer pad 6041 is disposed on the press bottom wall 6044. In this way, when the counterweight portion 711 falls, the first buffer pad 713, the second buffer pad 6041, and the first press structure 604 all play an effective role in buffering and shock absorption, achieving the purpose of reducing vibration and noise for the counterweight portion 711 from multiple angular perspectives.

[0154] Preferably, a buffer pad mounting position is provided at the junction of the chamfer structure 7113 corresponding to the counterweight portion 711 on the press bottom wall 6044 and the bottom wall of the counterweight portion 711. The second buffer pad 6041 is embedded and installed in the buffer pad mounting position. The upper surface of the second buffer pad 6041 is slightly higher than the upper surface of the press bottom wall 6044 or is flush with it.

[0155] The buffer pad mounting position can be a through mounting hole opened on the press bottom wall 6044 or a blind hole. The second annular pad 6041 is embedded and squeezed in the buffer pad mounting position. The provided second buffer pad does not occupy the falling space of the counterweight portion 711. At the same time, when the space of the first press structure 604 cannot provide sufficient buffer space for the counterweight portion 711, the provided second buffer pad 6041 will play its role, providing a larger buffer space for the counterweight portion 711. At the same time, even if the counterweight portion 711 impacts on the second buffer pad 6041, it will not generate a large noise, further enhancing the buffer and noise reduction effect of the buffer structure.

[0156] Furthermore, as Figures 1 to 4 shown, one or more spaced drain holes 6042 are opened on the bottom wall of the first press structure 604. If washing water accumulates in the installation chamber 501 of the lifting housing 50, it can be drained in time through the drain holes 6042. At the same time, since the press bottom wall 6044 of the first press structure 604 is the lowest position of the entire installation chamber 501, opening the drain holes 6042 on the press bottom wall 6044 of the first press structure 604 is more conducive to the collection and discharge of water flow.

[0157] Preferably, a one-way valve is installed in the drain hole 6042. Through the provided one-way valve, the water in the installation chamber 501 can be discharged through the drain hole 6042, but the water in the inner cylinder 40 cannot enter the installation chamber 501 through the drain hole 6042, further ensuring the sealing effect of the installation chamber 501.

[0158] Further, in another expansion solution, a second pressing structure protruding upward is provided at the position of the top wall 51 of the lifting housing 50 corresponding to the counterweight portion 711, and the buffer structure further includes the second pressing structure that provides a buffer space for the upward movement of the counterweight portion 711. By providing the second pressing structure, it is possible to effectively avoid the phenomenon that when the counterweight portion 711 makes a centrifugal movement, it will hit the top wall 51 of the lifting housing 50 and generate a large amount of noise.

[0159] Moreover, by providing the second pressing structure, the initial position of the counterweight portion 711 can be correspondingly raised, which also provides a larger buffer space for the downward movement of the counterweight portion 711.

[0160] This embodiment also provides a washing machine having the above-mentioned clothing lifting device, including:

[0161] An inner tub 40 that independently holds washing water during washing and has a drain port 401 provided on its side wall;

[0162] A clothing lifting device installed on the inner wall of the inner tub 40 corresponding to the position of the drain port 401;

[0163] The centrifugal drainage mechanism 70 is installed in the lifting housing 50 of the clothing lifting device to block and close the drain port 401, and the centrifugal drainage mechanism 70 can open the drain port 401 for drainage under the action of centrifugal force.

[0164] Example 4

[0165] In order to solve the problem that the existing filtering structure provided in the clothing lifting device cannot achieve the self-cleaning effect and needs to be cleaned or replaced regularly, this embodiment provides a clothing lifting device for a washing machine on the basis of Embodiments 1 to 3, and mainly introduces the filtering structure in the lifting housing in detail.

[0166] This embodiment provides a clothing lifting device, and the filtering structure in the clothing lifting device can self-clean, and the filtering structure can be kept clean and the filtering effect can be ensured without manual cleaning of the filtering structure.

[0167] Such as Figures 1 to 6As shown in the figure, the clothes lifting device provided in this embodiment includes a lifting housing 50 disposed on the inner wall of the inner cylinder 4. The lifting housing 50 constitutes the outer contour of the clothes lifting device. An inner cavity is formed between the lifting housing 50 and the inner wall of the inner cylinder 4. The lifting housing 50 is provided with through holes for water flow in and out, so that the water in the inner cylinder can flow into the inner cavity of the clothes lifting device through the through holes, and the water flow in the inner cavity of the clothes lifting device can flow out of the inner cavity through the through holes. A filtering structure is arranged in the inner cavity, so that the water flowing through the inner cavity of the clothes lifting device can be filtered by the filtering structure. A plurality of drain ports 401 for draining the water in the inner cylinder are arranged on the inner wall of the inner cylinder 4, and the inner cavity covers at least one drain port 401. Such a setting enables the water flow to flow into the inner cavity of the clothes lifting device through the through holes on the lifting housing 50, and then drain the water flowing into the inner cavity through the drain ports 401. That is, the drainage flow in the inner cylinder includes a drainage path from the through holes to the drain ports 401. Since the inner cavity covers at least one drain port 401, there is at least one such drainage path in the inner cavity, and a filtering structure is arranged in the inner cavity, so that the drainage path can pass through the filtering structure in the inner cavity. In this way, the drainage flow along the drainage path can be used to wash the filtering structure, so as to wash away impurities such as lint remaining on the filtering structure, achieving the effect of cleaning the filtering structure.

[0168] As Figures 1 to 3 and Figure 5 , Figure 6 As shown in the figure, the filtering structure arranged in the filtering cavity 502 includes a filter screen, a comb-shaped filtering structure 5021 and other various filtering structures. In order to enable the water in the inner cylinder 4 to wash the filtering structure and be filtered by the filtering structure, the position of the filtering structure arranged in the inner cavity should also be reasonable, which is conducive to the filtering process of the filtering structure and conducive to washing away impurities such as lint remaining on it. The filtering structure includes a filtering section for intercepting impurities in the water flow. After the filtering section filters the impurities during the filtering process, the impurities will adhere to the filtering section. In order to ensure the filtering effect of the filtering structure, it is necessary to make the flushing water flow through the filtering section, and when using the drainage water flow to wash the filtering structure, it is also necessary for the drainage water flow to flow through the surface of the filtering section to wash away impurities such as lint remaining on the filtering section. Among them, the filtering section can be the cross-section of the filter screen; or the cross-section of the comb-shaped filtering structure 5021 that can intercept slag such as lint. For example, as shown in the figure, through holes are opened on the top wall of the lifting housing 50, and each row of comb-shaped protrusions forms a plane parallel to the top wall 51 of the lifting housing 50 provided with the through holes for intercepting impurities. The cross-sections in these filtering structures are used as the filtering sections to intercept impurities such as lint. The water flow direction at the position of the filtering section in the inner cavity forms an angle with the filtering section. In this way, the flushing water flow and the drainage water flow will surely flow through the filtering section, so that the flushing water flow can be filtered by the filtering section, and the drainage water flow can wash away impurities such as lint remaining on the surface of the filtering section.

[0169] Preferably, the water flow direction at the position of the filtration section flowing through the inner cavity is perpendicular to the filtration section. Preferably, the flushing water flow and the drainage water flow are perpendicular to the filtration section, so that the contact area between the drainage water flow, the flushing water flow and the filtration section is the largest, which is more conducive to the filtration of the flushing water flow, and the drainage water flow washes away the sundries during the flowing process. The plane intercepting impurities only needs to be washed by the drainage water flow to wash away the impurities thereon. Therefore, both the drainage water flow and the flushing water flow at the position of the filtration section intersect with the filtration section. Or if it is other types of filtration structures, it is also necessary that the drainage water flow and the flushing water flow can flow through the position of the filtration section.

[0170] More preferably, the filtration section is arranged parallel to the top wall 51 of the lifting housing 50 provided with through holes on the lifting housing 50. Since through holes are provided on the top wall 51 of the lifting housing 50 for water inlet, arranging the filtration section parallel to the top wall 51 makes the water flow entering from the through holes on the top wall 51 perpendicular to the filtration section. And whether it is the above-mentioned flushing water flow or the drainage water flow, they both enter the inner cavity from the through holes. Arranging the filtration section at a position parallel to the top wall 51 provided with through holes further makes it easier for the drainage water flow entering the inner cavity to wash the filtration section, and the flushing water flow entering the inner cavity can be filtered. And the filtration section projects onto the top wall 51, and the projection covers at least some of the through holes on the top wall 51; preferably, the projection covers all the through holes on the top wall 51. Only in this way can the water flow entering from the through holes on the top wall 51 flow towards the filtration section. That is, for the filter screen, the filter screen needs to be arranged parallel to the top wall 51, so that the drainage water flow flowing in from the through holes of the top wall 51 can directly flow towards the filter screen, achieving the effect that the flushing water flow passes through the filter screen for filtration and the drainage water flow flushes the filter screen.

[0171] More preferably, the filtration section is arranged at a position close to the top wall 51 in the filtration cavity 502. Since the water inlet through holes are provided on the top wall 51, arranging the filtration section close to the top wall 51 makes the filtration section close to the water inlet through holes. The water flow entering the inner cavity is definitely larger closer to the water inlet. Therefore, arranging the filtration section close to the water inlet through holes can enable the filtration section to be flushed by a larger water flow, which is conducive to cleaning impurities such as lint remaining on the filtration structure. And the water flow rate is the largest at the position of the through holes. Arranging the filtration section on the top wall 51 close to the through holes can enable the filtration section to filter more water flow entering the inner cavity, and thus achieve a better filtration effect.

[0172] Specifically, a second baffle 612 for guiding the drainage water flow and the cleaning water flow is provided inside the clothing lifting device, the top wall 51 of the lifting housing 50 is provided with through holes, and a filtering cavity 502 is formed by the inner wall of the inner cylinder 4. The filtering cavity 502 at least covers a part of the through holes on the top wall 51, and a filtering structure is arranged in the filtering cavity 502. That is, the filtering cavity 502 communicates the through holes of the lifting housing 50 with the drainage port 401 on the inner wall of the inner cylinder 4 to discharge the water in the inner cylinder. And the filtering structure is arranged in the filtering cavity 502. When the water in the washing machine inner cylinder flows along the filtering cavity 502, the filtering structure in the filtering cavity 502 can be cleaned. The position and structure of the clothing lifting device on the inner wall of the inner cylinder 4 in this embodiment are reasonably arranged, so that a filtering cavity 502 for guiding the above drainage water flow and flushing water flow can be formed inside the inner cavity of the clothing lifting device, so that the flushing water flow can flow through the filtering structure and be filtered by the filtering structure under the guidance of the filtering cavity 502, and the drainage water flow can flow through the filtering structure under the guidance of the filtering cavity 502. In this way, the filtering structure can be automatically cleaned by using the water flow of the drainage in the inner cylinder.

[0173] As can be seen from the above, the drainage water flow in the filtering cavity 502 is the water supply for cleaning the filtering structure, and it should be ensured that there is sufficient water flow in the filtering cavity 502 during drainage. Therefore, a partition-like structure can be arranged in the inner cavity of the clothing lifting device, and the partition-like structure can enclose the filtering cavity 502, so that the filtering cavity 502 with the partition-like structure for guiding the flow can make the drainage flow along the set track. As shown in FIGS. 1, Figure 2 , Figure 6 the second baffle 612 and the third baffle 613 that enclose the filtering cavity 502 are connected to the top wall 51. The filtering structure is arranged between the second baffle 612 and the third baffle 613; preferably, the area between the second baffle 612 and the third baffle 613 covers all the through holes on the top wall 51. The second baffle 612 and the third baffle 613 are the partition-like guiding structures. Through the limitation of the second baffle 612 and the third baffle 613, the drainage water flow and the flushing water flow can only flow within the range between the second baffle 612 and the third baffle 613, avoiding the situation that if the flow range of the drainage water flow is too wide, the drainage water flow will be too divergent, resulting in insufficient impact force of the drainage water flow and affecting the cleaning effect of the filtering structure.

[0174] Since the drainage port 401 is located outside the second baffle 612, the second baffle 612, the top wall 51 and the inner wall of the inner cylinder 4 cannot enclose the above-mentioned closed filtering cavity 502, because this will cause the drainage water flow to be unable to flow into the drainage port 401. Therefore, at least an opening 5022 needs to be provided in the filtering cavity 502 so that the drainage water flow can flow into the drainage port 401 through the opening 5022.

[0175] Specifically, as shown in Figure 1 , Figure 2As shown in the figure, there is a gap between the end side wall of the second baffle 612 near the drainage port 401 and the inner wall of the inner cylinder 4. The gap forms an opening 5022 for the water flow in the inner cavity to flow towards the drainage port 401, so that the drainage water flow can flow out from the opening 5022 and finally flow towards the drainage port 401 for discharge. Since the drainage water flow in the filtering cavity 502 ultimately needs to flow towards the drainage port 401 for discharge, a guide plate 5023 for guiding the water flow to the drainage port 401 can be arranged in the filtering cavity 502. By arranging the guide plate 5023, the water flow in the filtering cavity 502 is easily gathered towards the drainage port 401, making the water flow towards the drainage port 401 larger. Even after cleaning the filtering structure, the water flow containing lint and other sundries can flow towards the drainage port 401 and be discharged under the guidance of the guide plate 5023. Since the water flow contains lint and other sundries that hinder the water flow after cleaning the filtering structure, setting the guide plate 5023 can make the water flow more concentrated, and thus make the water flow towards the drainage port 401 larger, making it easier for lint and the like to be discharged from the drainage port 401.

[0176] Specifically, as shown in Figures 1 to 3 , Figure 5 As shown in the figure, the guide plate 5023 is an inclined structure that gradually inclines from the third baffle 613 towards the opening 5022 below the second baffle 612, which is more conducive to the drainage water flow flowing along the inclined guide plate 5023 towards the drainage port 401. And the inclined structure of the guide plate 5023 can increase the flow velocity of the drainage water flow, which is more conducive to washing away lint and other sundries in the drainage water flow. Preferably, all the guide plates 5023 form a conical surface with the cone tip pointing to the drainage port 401. The conical surface formed by the inclined guide plates 5023 makes the area of the cross-section towards the drainage port 401 gradually shrink, accelerating the flow velocity of the water flow towards the drainage port 401, which is more conducive to the water flow with lint being discharged from the drainage port 401.

[0177] The clothes lifting device provided in this embodiment has a reasonable internal structure setting, which can enable the flushing water flow entering the clothes lifting device to be filtered by the filtering structure; the drainage water flow cleans the filtering structure inside the clothes lifting device, achieving the purpose of flushing away residual lint and other impurities on the filtering structure and ensuring the filtering effect of the filtering structure. That is, the filtering structure in the clothes lifting device provided by the present invention can be self-cleaned internally, so that it is not necessary to clean the filtering structure manually, and the self-cleaning of the filtering structure can be realized by using the drainage inside the inner cylinder 40.

[0178] The implementation schemes in the above embodiments can be further combined or replaced. And the embodiments are only descriptions of the preferred embodiments of the present invention, not limitations on the concept and scope of the present invention. Without departing from the design concept of the present invention, various changes and improvements made by those skilled in the art to the technical solutions of the present invention all belong to the protection scope of the present invention.

Claims

1. A centrifugal drainage mechanism, comprising a centrifugal component and a valve plug component, characterized in that: The centrifugal component includes a counterweight portion and a connecting portion. The counterweight portion includes a counterweight block shell and a counterweight block disposed within the counterweight block shell. Along the length direction of the counterweight block, the counterweight block shell includes a circumferential sidewall with open ends at both ends, and a first end sidewall and a second end sidewall disposed at both ends of the circumferential sidewall. One end of the connecting portion is fixedly connected to the first end sidewall or the second end sidewall; The other end of the connecting portion is rotatably connected to the valve plug component, and the middle portion is rotatably supported and fixed to form a lever structure. The end of the connecting portion connected to the valve plug component is gradually outwardly expanded toward the end connected to the counterweight block shell. The connecting portion is a plate-like structure with a triangular cross-section. One side edge of the connecting portion is fixedly connected to the sidewall of the counterweight block shell close to the valve plug component; The counterweight block generates a centrifugal motion under the action of centrifugal force, driving the valve plug component to actuate and open the drain port on the inner cylinder for drainage.

2. The centrifugal drainage mechanism according to claim 1, characterized in that: The longitudinal cross-section of the connecting portion is triangular.

3. The centrifugal drainage mechanism according to claim 1, characterized in that: A strengthening structure for improving strength is provided at the connection position between the connecting portion and the counterweight block shell. The strengthening structure is a plate-like reinforcing rib connected between the connecting portion and the counterweight block shell.

4. The centrifugal drainage mechanism according to claim 3, wherein: There are at least two plate-like reinforcing ribs, which are disposed on the left and right sides of the connecting portion.

5. The centrifugal drainage mechanism according to claim 1, characterized in that: The connecting portion has an extended connecting rib protruding therefrom. The extended connecting rib extends from the upper edge of the connecting portion toward the counterweight portion; The extended connecting rib has a certain extension length, and the lower side surface of the extended connecting rib is fixedly connected to the upper sidewall surface of the counterweight block shell.

6. The centrifugal drainage mechanism according to any one of claims 1-5, characterized in that: The counterweight block shell and the connecting portion are integrally formed by injection molding.

7. The centrifugal drainage mechanism according to any one of claims 1-5, characterized in that: The counterweight block is made of a metal material, and the counterweight block shell is made of a corrosion-resistant non-metallic material.

8. The centrifugal drainage mechanism according to claim 7, characterized in that: The counterweight block shell is made of a plastic material.

9. The centrifugal drainage mechanism according to any one of claims 1-5, characterized in that: The circumferential sidewall includes a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall that are sequentially connected end to end. The connections of the first sidewall, the second sidewall, the third sidewall, and the fourth sidewall are smoothly transitionally connected.

10. The centrifugal drainage mechanism according to any one of claims 1-5, characterized in that: There is a gap between the outer wall of the counterweight block shell and the counterweight block, and the gap is filled with a sealing medium.

11. The centrifugal drainage mechanism according to claim 10, characterized in that: The sealing medium is a glue. Glue is poured into the gap between the counterweight block and the counterweight block shell to bond the counterweight block and the counterweight block shell into one body.

12. A washing machine having the centrifugal drainage mechanism according to any one of claims 1-11, characterized in that, Including: An inner cylinder that independently holds washing water when washing clothes; A clothes lifting device, and the clothes lifting device is installed on the drain port of the inner wall of the inner cylinder; The centrifugal drainage mechanism is installed in the lifting housing of the clothes lifting device to block and close the drain port. The centrifugal drainage mechanism can open the drain port for drainage under the action of centrifugal force.

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