A washing machine

Abstract

The present invention belongs to the technical field of washing machines, and discloses a washing machine, comprising an inner barrel, a dehydration shaft connected to the inner barrel, and a water collecting device arranged below the inner barrel, a drainage cover is fixedly arranged on the outer side of the barrel bottom of the inner barrel, a sealing seat is arranged on the water collecting device, and the drainage cover is rotatably arranged in the sealing seat; the drainage cover and the sealing seat are respectively sleeved on the dehydration shaft, and the drainage cover and the sealing seat enclose a drainage chamber connected to the inner barrel; a first drainage port is provided on the sealing seat, and the washing machine further comprises a sealing mechanism and a sealing driving mechanism, the sealing mechanism blocks the first drainage port, so that the inner barrel can independently contain washing water, and the sealing driving mechanism drives the sealing mechanism to move and open the first drainage port. The sealing mechanism of the present invention does not directly contact the inner barrel, and the inner barrel can rotate freely during washing. At the same time, the position of the sealing mechanism is always located at the center, and positioning is not required before drainage, and the control logic is simple.

Description

Technical Field

[0001] The present invention belongs to the technical field of washing machines, and in particular, relates to a washing machine. Background Art

[0002] Most existing washing machines include an inner barrel and an outer barrel that are interconnected. When the washing machine is working, the outer barrel contains washing water, and the inner barrel contains clothes to be washed. The washing water can exist between the inner barrel and the outer barrel. As the washing machine works longer, the dirt and lint in the washing water are easily retained in the space between the inner and outer barrels, and are difficult to clean, resulting in bacteria and odors generated over the years, affecting the hygiene of the washed clothes and endangering the health of users. To solve this problem, the prior art proposes a washing machine without a dehydration hole on the inner barrel, so that the inner barrel can independently contain washing water during the washing process, but at the same time, the existing drainage method cannot achieve drainage of a waterless washing machine between barrels.

[0003] To solve the above problems, Chinese patent application number 201810903593.0 discloses a drainage sealing device for a washing machine and a washing machine. The washing machine includes an inner barrel, a drainage hole is provided at the bottom of the inner barrel, and the drainage sealing device is installed at the bottom of the inner barrel, and includes a sealing mechanism that can be sealed with the drainage hole: when washing or rinsing, the sealing mechanism is sealed with the drainage hole, and washing water is contained in the inner barrel; when draining, the sealing mechanism opens the drainage hole, and the washing water in the inner barrel is discharged from the drainage hole.

[0004] However, in the above scheme, the opening of the drain hole requires the cooperation of the sealing mechanism and the driving mechanism fixedly installed under the inner barrel, but the sealing mechanism will change position as the inner barrel rotates. Therefore, before opening the drain hole, the inner barrel needs to be positioned so that the positions of the sealing mechanism and the driving mechanism coincide. The driving mechanism and the positioning structure for positioning the inner barrel need to be respectively provided with driving elements for control. The control logic is complex, and the separately provided positioning structure also makes the assembly of the washing machine more cumbersome. At the same time, during the dehydration process, since the inner barrel needs to rotate, the drain hole cannot be opened by the cooperation of the sealing mechanism and the driving mechanism, so that the water in the clothes can only be discharged through the dehydration hole at the inner barrel mouth during dehydration, and cannot be discharged from the drainage hole at the bottom of the inner barrel, resulting in a high moisture content of the clothes after dehydration.

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

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a washing machine with an inner drum that can independently hold water. The sealing mechanism is arranged below the center of the bottom of the inner drum. The sealing mechanism can be driven by the sealing driving mechanism to achieve drainage without the need for prior positioning operation.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] A washing machine comprises an inner tub, a dehydration shaft connected to the inner tub, and a water collecting device arranged below the inner tub, characterized in that a drainage cover is fixedly arranged on the outer side of the bottom of the inner tub, a sealing seat is arranged on the water collecting device, and the drainage cover is rotatably arranged in the sealing seat; the drainage cover and the sealing seat are respectively sleeved on the dehydration shaft, and the drainage cover and the sealing seat enclose a drainage chamber communicated with the inner tub;

[0009] The sealing seat is provided with a first drain port, and the washing machine further comprises a sealing mechanism and a sealing drive mechanism, wherein the sealing mechanism blocks the first drain port so that the inner barrel can independently contain washing water, and the sealing drive mechanism drives the sealing mechanism to move and open the first drain port.

[0010] Furthermore, the sealing mechanism comprises a water sealing disc, a top rod and a connecting ring, and the water sealing disc is arranged inside the drainage chamber to seal the first drainage port;

[0011] A first through hole is provided on the sealing seat, one end of the push rod is fixedly connected to a connecting ring provided below the sealing seat, and the other end passes through the first through hole and is fixedly connected to the water sealing disk, and a sealing member is provided between the push rod and the first through hole for sealing;

[0012] The sealing drive mechanism pushes the connecting ring to drive the push rod to push open the water sealing tray and open the first drain port;

[0013] Preferably, the sealing mechanism further comprises an elastic member, and the elastic member pushes the connecting ring downward to keep the water sealing disk to seal the first drain outlet.

[0014] Furthermore, a reducer mounting plate is provided below the water collecting device, the connecting ring is arranged below the reducer mounting plate and limited on the outer periphery of the dehydration shaft; a second through hole for the push rod to pass through is provided on the reducer mounting plate.

[0015] Further, the sealing drive mechanism is arranged below the water collecting device, and comprises a driving device, a toggle member and a fixing seat; the fixing seat is fixedly arranged, the middle part of the toggle member is rotatably mounted on the fixing seat, the first end of the toggle member abuts against the connecting ring, and the second end can swing towards / away from the water collecting device under the drive of the driving device;

[0016] The second end of the toggle member is driven by the driving device to swing away from the water collecting device, thereby driving the first end of the toggle member to swing toward the water collecting device, pushing the connecting ring to open the first drain port of the water sealing disk;

[0017] Preferably, the first end of the toggle member has a forked portion, the forked portion is limited on the outer circumference of the dehydration shaft, the forked portion has an upwardly protruding pushing portion, and the pushing portion abuts against the connecting ring.

[0018] Furthermore, the washing machine further comprises a drainage channel connecting the drainage chamber with a drainage pipeline of the washing machine, and the drainage channel is arranged below the water collecting device;

[0019] A second drain outlet is provided on the drainage channel corresponding to the first drain outlet, the outer periphery of the second drain outlet extends upward to form a first extension portion, and the end surface of the first extension portion is in contact with the outer periphery of the first drain outlet;

[0020] Preferably, the drainage channel is arranged below the reducer mounting plate, a through hole is provided on the reducer mounting plate, and the first extension portion passes through the through hole and fits with the outer periphery of the first drainage port.

[0021] Further, the drainage water channel includes a first annular water channel and a second water channel connecting the first water channel and the drainage pipeline, the first water channel is limited on the outer periphery of the dehydration shaft, the second water channel extends from the outer periphery of the first water channel to the outer side of the inner barrel, and the second drainage port is arranged on the first water channel;

[0022] The connecting ring is arranged below the first water channel, or the connecting ring is arranged inside the ring shape of the first water channel.

[0023] Furthermore, a matching portion extending toward the center of the ring is provided on the annular inner surface of the first water channel, and a third through hole for the push rod to pass through is provided on the matching portion;

[0024] Preferably, the outer periphery of the first through hole on the sealing seat extends downward to form a second extension portion, and the sealing member is a corrugated sealing sleeve sleeved on the top rod; one end of the corrugated sealing sleeve is fixedly connected to one end of the top rod close to the water sealing disk, and the other end has a sealing portion extending toward the outer periphery, and the sealing portion is sealed and fixed between the lower end surface of the second extension portion and the upper surface of the matching portion;

[0025] Preferably, the elastic member is a compression spring, which is sleeved on the push rod, with one end of the compression spring abutting against the connecting ring and the other end abutting against the lower surface of the matching portion.

[0026] Furthermore, an installation opening is provided on the water collecting device, and the sealing seat is fixedly arranged in the installation opening and fixedly connected to the reducer installation plate below the water collecting device.

[0027] Further, the drain cover comprises a side wall extending downward from the bottom of the inner barrel, and the sealing seat comprises a sleeve portion and a mounting portion; the sleeve portion is sleeved on the side wall of the drain cover and is rotatably sealed and connected to the side wall;

[0028] The reducer mounting plate is provided with a reducer bearing seat protruding upward, and the mounting portion is sleeved on the reducer bearing seat;

[0029] Preferably, the drainage cover also includes a top cover that is sealed with the bottom of the inner barrel, and the side wall is fixedly connected to the outer periphery of the top cover; a first drainage hole is provided on the bottom of the inner barrel, and a second drainage hole connected to the first drainage hole is provided on the top cover.

[0030] Furthermore, the washing machine further comprises a pressure detection device, a pressure pipe installation hole is provided on the sealing seat, one end of the pressure pipe is sealed and installed in the pressure pipe installation hole and communicated with the drainage chamber, and the other end is connected to the pressure detection device;

[0031] Preferably, a fourth through hole is opened on the reducer mounting plate below the water collecting device, and the pressure-conducting pipe passes through the fourth through hole from below the reducer mounting plate and is installed in the pressure-conducting pipe mounting hole.

[0032] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0033] In the washing machine of the present invention, a drainage chamber formed by a drainage cover and a sealing seat is arranged below the inner barrel and is connected to the inner barrel. The sealing mechanism does not directly contact the inner barrel, but achieves the purpose of independently holding washing water in the inner barrel by blocking the first drainage port of the drainage chamber. The inner barrel can rotate freely during the washing process to achieve dual-power washing. At the same time, the first drainage port can also be kept open during the dehydration process, thereby improving the dehydration rate of the clothes. The sealing mechanism is always located at the center, and there is no need to position it before draining water, and the control logic is simple.

[0034] In the washing machine of the present invention, the sealing seat is fixedly mounted on the reducer mounting plate, passes through the mounting opening on the water collecting device and is connected with the drainage cover, the drainage channel and the sealing driving mechanism are arranged below the reducer mounting plate, the push rod passes through the reducer mounting plate and the sealing seat from below the reducer mounting plate in sequence and is connected with the water sealing pan, and the water sealing pan is opened to drain water. The whole device can be integrated with the reducer and then installed in the washing machine as an integral structure, and the assembly operation is simple.

[0035] In the washing machine of the present invention, a pressure pipe installation hole for installing a pressure pipe is arranged on the sealing seat, and water level detection is achieved by detecting the water pressure in the drainage chamber, thereby solving the problem of detecting the water level in the inner barrel when there is no water between the barrels.

[0036] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0038] Figure 1 is a schematic cross-sectional structural diagram of a washing machine according to an embodiment of the present invention;

[0039] Figure 2 The present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0040] Figure 3 is a schematic structural diagram of a washing machine in an embodiment of the present invention;

[0041] Figure 4 The present invention Figure 3 Schematic diagram of the middle BB section;

[0042] Figure 5 The present invention Figure 4 Schematic diagram of the enlarged structure at C in the middle;

[0043] Figure 6 is an exploded view of the structure below the inner barrel in an embodiment of the present invention;

[0044] Figure 7 is an exploded view of the reducer mounting plate and the upper part of the structure in the embodiment of the present invention;

[0045] Figure 8 is a bottom view of the structure of a washing machine according to an embodiment of the present invention;

[0046] Fig. 9 is a schematic diagram of the structure of the embodiment of the present invention from a bottom view without the reducer;

[0047] Fig.10 2 is a schematic diagram of the top view of the washing machine in an embodiment of the present invention.

[0048] In the figure: 100, inner barrel; 101, first drain hole; 110, dehydration shaft; 111, dehydration shaft disc; 200, water collecting device; 201, mounting port; 300, drain cover; 310, side wall; 320, top cover; 321, second drain hole; 400, sealing seat; 401, first drain port; 402, first through hole; 403, second extension portion; 404, pressure pipe mounting hole; 405, O-ring; 410, sleeve portion; 420, mounting portion;

[0049] 510, water sealing disc; 520, top rod; 530, connecting ring; 540, elastic member; 550, corrugated sealing sleeve; 551, fixing part; 552, sealing part; 610, toggle member; 611, fork joint; 612, pushing part; 620, fixing seat; 630, traction rope; 640, supporting frame;

[0050] 700, reducer mounting plate; 701, second through hole; 702, through hole; 703, fourth through hole; 710, reducer bearing seat; 720, reducer brake arm; 730, pull rope; 740, drainage motor; 800, drainage waterway; 810, first waterway; 811, second drainage port; 812, first extension portion; 813, matching portion; 814, third through hole; 820, second waterway; 821, water outlet.

[0051] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0053] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] like Figures 1 to 10As shown, an embodiment of the present invention provides a washing machine, comprising an inner tub 100, a dehydration shaft 110 connected to the inner tub 100, and a water collecting device 200 arranged below the inner tub 100. A drainage cover 300 is fixedly arranged on the outer side of the bottom of the inner tub 100, a sealing seat 400 is arranged on the water collecting device 200, and the drainage cover 300 is rotatably arranged in the sealing seat 400. The drainage cover 300 and the sealing seat 400 are respectively sleeved on the dehydration shaft 110, and the drainage cover 300 and the sealing seat 400 enclose a drainage chamber that is connected to the inside of the inner tub 100, and a first drainage port 401 is provided on the sealing seat 400.

[0056] The washing machine further comprises a sealing mechanism and a sealing driving mechanism. The sealing mechanism blocks the first drain port 401 so that the inner tub 100 can independently hold washing water. The sealing driving mechanism drives the sealing mechanism to move to open the first drain port 401 .

[0057] In the above scheme, the inner barrel 100 has no dehydration holes at least in the area below the highest water level of the washing machine. The inner barrel 100 is provided with a drainage cover 300 and a drainage chamber surrounded by a sealing seat 400, which is connected to the inner barrel 100. The sealing mechanism does not directly contact the inner barrel 100, but blocks the first drainage port 401 on the sealing seat 400, that is, blocks the drainage chamber, thereby achieving the purpose of independently holding washing water in the inner barrel 100. During the washing process, the inner barrel 100 can rotate freely to achieve dual-power washing. At the same time, the first drainage port 401 can also be kept open during the dehydration process, thereby improving the dehydration rate of the clothes.

[0058] The drainage chamber is located at the bottom center of the inner tub 100, and the sealing mechanism does not rotate with the inner tub 100, and its position is always located at the center. When draining, it is not necessary to position the inner tub 100 first, and the control logic is simple. At the same time, the setting of the positioning mechanism is omitted, and there is no need to set up a separate driving element of the positioning mechanism, which simplifies the structure of the washing machine and reduces the cost.

[0059] In this embodiment, since the inner barrel 100 can hold water independently, during the washing / rinsing process, water is only stored in the inner barrel 100 and the drainage chamber, and there is no water between the inner barrel 100 and the water collecting device 200. Therefore, the water collecting device 200 can be a conventional outer barrel or a half outer barrel, that is, the upper edge of the water collecting device 200 is set lower than the upper edge of the inner barrel 100.

[0060] In a further solution of this embodiment, the sealing mechanism includes a water sealing disk 510 , a top rod 520 and a connecting ring 530 . The water sealing disk 510 is disposed inside the drainage chamber to seal the first drainage port 401 .

[0061] The sealing seat 400 is provided with a first through hole 402 , the lower end of the push rod 520 is fixedly connected to the connecting ring 530 arranged below the sealing seat 400 , and the upper end passes through the first through hole 402 and is fixedly connected to the water sealing disk 510 , and a sealing member is provided between the push rod 520 and the first through hole 402 for sealing.

[0062] The sealing drive mechanism pushes the connecting ring 530 upward, thereby driving the push rod 520 to push open the water sealing tray 510 to open the first drain port 401 .

[0063] Preferably, the sealing mechanism further comprises an elastic member 540 , and the elastic member 540 pushes the connecting ring 530 downward to keep the water sealing disk 510 to seal the first drain port 401 .

[0064] In the above scheme, the water sealing disc 510 is fastened to the upper end of the push rod 520 by screws. When the washing machine enters the drainage stage, the sealing drive mechanism pushes the connecting ring 530 upward, drives the push rod 520 to move upward, and then pushes the water sealing disc 510 open, separates it from the sealing seat 400, and opens the first drainage port 401 for drainage. After drainage is completed, the elastic member 540 pushes the connecting ring 530 downward to reset, and the push rod 520 drives the water sealing disc 510 to move downward, and re-blocks the first drainage port 401.

[0065] Furthermore, a reducer mounting plate 700 is provided below the water collecting device 200, and the connecting ring 530 is arranged below the reducer mounting plate 700 and limited on the outer periphery of the dehydration shaft 110. The reducer mounting plate 700 is provided with a second through hole 701 for the push rod 520 to pass through.

[0066] In this embodiment, the sealing drive mechanism is arranged below the water collecting device 200, and includes a drive device, a toggle member 610 and a fixed seat 620. The fixed seat 620 is fixedly arranged, and the middle part of the toggle member 610 is rotatably mounted on the fixed seat 620, the first end on the left side of the toggle member 610 abuts against the connecting ring 530, and the second end on the right side can swing towards / away from the water collecting device 200 under the drive of the drive device.

[0067] The second end of the toggle member 610 is driven by the driving device to swing away from the water collecting device 200, thereby driving the first end of the toggle member 610 to swing toward the water collecting device 200, pushing the connecting ring 530 to enable the water sealing plate 510 to open the first drain port 401.

[0068] Preferably, the first end of the toggle member 610 has a forked portion 611, and the forked portion 611 is limited on the outer periphery of the dehydration shaft 110. The forked portion 611 has an upwardly protruding pushing portion 612, and the top end of the pushing portion 612 abuts against the connecting ring 530.

[0069] In the above scheme, the middle part of the toggle member 610 is rotatably mounted on a fixed seat 620 to form a lever structure. The action of the first end can be controlled by driving the second end of the toggle member 610. The structure is simple and easy to implement.

[0070] In this embodiment, the fixed seat 620 and the driving device of the sealing drive mechanism can be eccentrically set on the water collection device 200, and the control of the sealing mechanism below the center of the inner barrel 100 is achieved through the lever structure of the toggle member 610, thereby avoiding the reducer, motor and other structures located below the center of the water collection device 200.

[0071] In this embodiment, the driving device for driving the toggle member 610 to rotate is a drainage motor 740 disposed below the reducer mounting plate 700. The specific connection relationship between the drainage motor 740 and the toggle member 610 is as follows.

[0072] The drain motor 740 is connected to the pull rope 730, and the other end of the pull rope 730 is fixed to the reducer brake arm 720. The reducer brake arm 720 is rotatably arranged and connected to the second end of the toggle member 610 through the traction rope 630. The traction rope 630 and the pull rope 730 are fixed on the same side of the rotation center of the reducer brake arm 720.

[0073] Since there is a certain interval in the horizontal direction between the connection between the traction rope 630 and the reducer brake arm 720 and the connection between the traction rope 630 and the toggle member 610, in order to ensure that the pulling direction of the toggle member 610 by the traction rope 630 is vertically downward, the lower side of the reducer mounting plate 700 is fixedly connected to the support frame 640. The support frame 640 extends downward from the reducer mounting plate 700 to below the second end of the toggle member 610, and the traction rope 630 passes through the support frame 640 and is connected to the toggle member 610.

[0074] like Figure 8 and Fig. 9 As shown, when draining, the drain motor 740 drives the pull rope 730 to contract, causing the reducer brake arm 720 to rotate clockwise, and then the second end of the toggle member 610 is pulled downward by the traction rope 630, causing the first end of the toggle member 610 to swing upward, and the connecting ring 530 is pushed upward by the pushing portion 612, so as to lift the water sealing disk 510 to drain water. After the drainage is completed, the drain motor 740 releases the pull rope 730, and the elastic member 540 pushes the connecting ring 530 downward to reset, thereby driving the toggle member 610 to rotate and reset.

[0075] In a further solution of this embodiment, the washing machine further includes a drainage channel 800 connecting the drainage chamber with a drainage pipeline of the washing machine, and the drainage channel 800 is arranged below the water collection device 200 .

[0076] The drainage channel 800 has a second drainage port 811 corresponding to the first drainage port 401 , and the outer periphery of the second drainage port 811 extends upward to form a first extension portion 812 . The upper end surface of the first extension portion 812 is in contact with the outer periphery of the first drainage port 401 .

[0077] Preferably, the drainage channel 800 is disposed below the reducer mounting plate 700 , a through hole 702 is provided on the reducer mounting plate 700 , and the first extension portion 812 passes through the through hole 702 and fits with the outer periphery of the first drainage port 401 .

[0078] Further, the drainage water channel 800 includes a first annular water channel 810 and a second water channel 820 connecting the first water channel 810 and the drainage pipeline. The first water channel 810 is limited on the outer periphery of the dehydration shaft 110, and the second water channel 820 extends from the outer periphery of the first water channel 810 to the outer side of the inner barrel 100. The second drainage port 811 is provided on the first water channel 810, and the left end of the second water channel 820 has a water outlet 821.

[0079] When draining, the water sealing plate 510 and the push rod 520 are lifted to open the first drain port 401, and the water in the drainage chamber enters the first water channel 810 through the first drain port 401 and the second drain port 811, and then enters the second water channel 820, and then flows out through the water outlet 821 of the second water channel 820 into the drainage pipe of the washing machine.

[0080] The connection ring 530 is disposed below the first water channel 810 , or the connection ring 530 is disposed inside the ring shape of the first water channel 810 .

[0081] In this embodiment, two groups of first drainage ports 401 and second drainage ports 811 are symmetrically arranged, thereby improving drainage efficiency.

[0082] In a further solution of this embodiment, a matching portion 813 extending toward the center of the ring is provided on the annular inner surface of the first water channel 810, and a third through hole 814 is provided on the matching portion 813 for the ejector rod 520 to pass through. The setting of the matching portion 813 plays a certain guiding role for the ejector rod 520, preventing the sealing mechanism from rotating around the dehydration shaft 110 during the up and down movement.

[0083] Preferably, the outer circumference of the first through hole 402 on the sealing seat 400 extends downward to form a second extension portion 403, and the sealing member is a corrugated sealing sleeve 550 sleeved on the top rod 520. The upper end of the corrugated sealing sleeve 550 is fixedly connected to the upper end of the top rod 520. Specifically, the inner side of the upper end of the corrugated sealing sleeve 550 has a fixing portion 551, and the outer wall of the upper end of the top rod 520 is provided with a fixing groove, and the fixing portion 551 is inserted into the fixing groove to achieve the fixing of the upper end of the corrugated sealing sleeve 550. The lower end of the corrugated sealing sleeve 550 has a sealing portion 552 extending toward the outer circumference, and the sealing portion 552 is sealed and fixed between the lower end surface of the second extension portion 403 and the upper surface of the matching portion 813.

[0084] The elastic member 540 is a compression spring, which is sleeved on the top rod 520 , with its lower end abutting against the connecting ring 530 and its upper end abutting against the lower surface of the matching portion 813 .

[0085] In a further solution of this embodiment, an installation opening 201 is opened on the water collecting device 200 , and the sealing seat 400 is fixedly disposed in the installation opening 201 and fixedly connected to the reducer mounting plate 700 below the water collecting device 200 .

[0086] Further, the drain cover 300 includes a side wall 310 extending downward from the bottom of the inner tub 100, and the sealing seat 400 includes a sleeve portion 410 and a mounting portion 420. The sleeve portion 410 is sleeved on the side wall 310 of the drain cover 300 and is rotatably sealed and connected to the side wall 310.

[0087] The reducer mounting plate 700 has a reducer bearing seat 710 protruding upward, and the mounting portion 420 is sleeved on the reducer bearing seat 710. An O-ring 405 is sleeved on the lower end of the mounting portion 420, which cooperates with the inner wall of the mounting opening 201 to seal between the reducer mounting plate 700 and the water collecting device 200.

[0088] Preferably, the drain cover 300 further includes a top cover 320 sealed against the bottom of the inner tub 100, and the side wall 310 is fixedly connected to the outer periphery of the top cover 320, and preferably the top cover 320 and the side wall 310 are an integral structure. A first drain hole 101 is provided on the bottom of the inner tub 100, and a second drain hole 321 communicating with the first drain hole 101 is provided on the top cover 320, so that the drain chamber is connected to the inside of the inner tub 100.

[0089] The upper surface of the top cover 320 has a convex structure made of rubber material, which is used for end face sealing between the top cover 320 and the bottom of the inner barrel 100. The bottom of the inner barrel 100 is fastened to the dehydration shaft disc 111 at the top of the dehydration shaft 110 by screws passing through the drain cover 300, thereby fixing the dehydration shaft 110 and the inner barrel 100.

[0090] In this embodiment, the sealing seat 400 is fixedly mounted on the reducer mounting plate 700, passes through the mounting port 201 on the water collecting device 200 and is connected with the drain cover 300, the drain channel 800 and the sealing drive mechanism are both arranged below the reducer mounting plate 700, the top rod 520 passes through the matching portion 813 on the drain channel 800, the reducer mounting plate 700, and the sealing seat 400 and is connected with the water sealing plate 510, and drains water by opening the water sealing plate 510. The whole device can be integrated with the reducer and then installed in the washing machine as an integral structure, and the assembly operation is simple.

[0091] In another solution of this embodiment, the drainage cover 300 and the sealing seat 400 may not be separately provided, but a first annular convex rib is provided on the lower side of the bottom of the inner barrel 100, and a second annular convex rib is provided on the upper side of the water collecting device 200, and the second annular convex rib is sleeved on the first annular convex rib, and the two are rotatably sealed and connected to form a drainage chamber. The water collecting device 200 is no longer provided with the installation port 201, and the first drainage port 401 is directly provided on the water collecting device 200 and is blocked by the water sealing plate 510.

[0092] In a further solution of this embodiment, the washing machine also includes a pressure detection device, a pressure pipe installation hole 404 is opened on the sealing seat 400, one end of the pressure pipe is sealed and installed in the pressure pipe installation hole 404 and connected to the drainage chamber, and the other end is connected to the pressure detection device.

[0093] A fourth through hole 703 is provided on the reducer mounting plate 700 below the water collecting device 200 , and the pressure-conducting pipe passes through the fourth through hole 703 from below the reducer mounting plate 700 and is installed in the pressure-conducting pipe installation hole 404 .

[0094] In this embodiment, a pressure pipe installation hole 404 for installing a pressure pipe is set on the sealing seat 400. The water level detection is achieved by installing the pressure pipe to detect the water pressure in the drainage chamber, which solves the problem of detecting the water level of the inner barrel 100 when there is no water between the barrels.

[0095] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A washing machine, comprising an inner tub, a dehydration shaft connected to the inner tub, and a water collecting device arranged below the inner tub, It is characterized in that A drainage cover is fixedly arranged on the outer side of the bottom of the inner barrel, a sealing seat is arranged on the water collecting device, and the drainage cover is rotatably arranged in the sealing seat; the drainage cover and the sealing seat are respectively sleeved on the dehydration shaft, and the drainage cover and the sealing seat enclose a drainage chamber communicated with the inner barrel; The sealing seat is provided with a first drain port, the washing machine further comprises a sealing mechanism and a sealing drive mechanism, the sealing mechanism blocks the first drain port so that the inner tub can independently hold washing water, and the sealing drive mechanism drives the sealing mechanism to move and open the first drain port; The sealing mechanism comprises a water sealing disc, a top rod and a connecting ring, wherein the water sealing disc is arranged inside the drainage chamber to seal the first drainage port; A first through hole is provided on the sealing seat, one end of the push rod is fixedly connected to a connecting ring provided below the sealing seat, and the other end passes through the first through hole and is fixedly connected to the water sealing disk, and a sealing member is provided between the push rod and the first through hole for sealing; The sealing drive mechanism is arranged below the water collecting device, and comprises a driving device, a toggle member and a fixed seat; the fixed seat is fixedly arranged, and the middle part of the toggle member is rotatably mounted on the fixed seat, the first end of the toggle member has a fork-joining portion, the fork-joining portion is limited on the outer periphery of the dehydration shaft, the fork-joining portion has an upwardly protruding pushing portion, the pushing portion abuts against the connecting ring, and the second end of the toggle member can swing towards or away from the water collecting device under the drive of the driving device; The second end of the toggle member swings away from the water collecting device under the drive of the driving device, thereby driving the first end of the toggle member to swing toward the water collecting device, pushing the connecting ring to drive the push rod to open the water sealing tray and open the first drain outlet.

2. The washing machine according to claim 1, It is characterized in that The sealing mechanism also includes an elastic member, which pushes the connecting ring downward to keep the water sealing disk to block the first drain outlet.

3. The washing machine according to claim 2, It is characterized in that A reducer mounting plate is provided below the water collecting device, and the connecting ring is arranged below the reducer mounting plate and limited on the outer periphery of the dehydration shaft; a second through hole for the push rod to pass through is provided on the reducer mounting plate.

4. The washing machine according to any one of claims 1 to 3, It is characterized in that The washing machine further comprises a drainage channel connecting the drainage chamber with a drainage pipeline of the washing machine, wherein the drainage channel is arranged below the water collecting device; A second drain outlet is provided on the drain channel corresponding to the first drain outlet, and the outer periphery of the second drain outlet extends upward to form a first extension portion, and the end surface of the first extension portion is in contact with the outer periphery of the first drain outlet.

5. The washing machine according to claim 4, It is characterized in that The drainage channel is arranged below the reducer mounting plate. A through hole is provided on the reducer mounting plate. The first extension portion passes through the through hole and fits the outer periphery of the first drainage port.

6. The washing machine according to claim 4, It is characterized in that The drainage water channel includes a first annular water channel and a second water channel connecting the first water channel and the drainage pipeline, the first water channel is limited on the outer circumference of the dehydration shaft, the second water channel extends from the outer circumference of the first water channel to the outer side of the inner barrel, and the second drainage port is arranged on the first water channel; The connecting ring is arranged below the first water channel, or the connecting ring is arranged inside the ring shape of the first water channel.

7. The washing machine according to claim 6, It is characterized in that A matching portion extending toward the center of the ring circle is arranged on the annular inner surface of the first water channel, and a third through hole for the push rod to pass through is arranged on the matching portion.

8. The washing machine according to claim 7, It is characterized in that The outer periphery of the first through hole on the sealing seat extends downward to form a second extension portion, and the sealing member is a corrugated sealing sleeve sleeved on the top rod; one end of the corrugated sealing sleeve is fixedly connected to one end of the top rod close to the water sealing disk, and the other end has a sealing portion extending toward the outer periphery, and the sealing portion is sealed and fixed between the lower end surface of the second extension portion and the upper surface of the matching portion.

9. The washing machine according to claim 7, It is characterized in that The elastic member of the sealing mechanism is a compression spring, which is sleeved on the push rod, with one end abutting against the connecting ring and the other end abutting against the lower surface of the matching portion.

10. The washing machine according to any one of claims 1 to 3, It is characterized in that The water collecting device is provided with a mounting opening, and the sealing seat is fixedly arranged in the mounting opening and fixedly connected to the reducer mounting plate below the water collecting device.

11. The washing machine according to claim 10, It is characterized in that The drain cover comprises a side wall extending downward from the bottom of the inner barrel, and the sealing seat comprises a sleeve portion and a mounting portion; the sleeve portion is sleeved on the side wall of the drain cover and is rotatably sealed and connected to the side wall; The reducer mounting plate is provided with a reducer bearing seat protruding upward, and the mounting portion is sleeved on the reducer bearing seat.

12. The washing machine according to claim 11, It is characterized in that The drainage cover also includes a top cover that is sealed and fitted with the bottom of the inner barrel, and the side wall is fixedly connected to the outer periphery of the top cover; a first drainage hole is provided on the bottom of the inner barrel, and a second drainage hole connected to the first drainage hole is provided on the top cover.

13. The washing machine according to any one of claims 1 to 3, It is characterized in that The washing machine also includes a pressure detection device. The sealing seat is provided with a pressure pipe installation hole. One end of the pressure pipe is sealed and installed in the pressure pipe installation hole and communicated with the drainage chamber. The other end is connected to the pressure detection device.

14. The washing machine according to claim 13, It is characterized in that A fourth through hole is provided on the reducer mounting plate below the water collecting device, and the pressure-conducting pipe passes through the fourth through hole from below the reducer mounting plate and is installed in the pressure-conducting pipe mounting hole.

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