Vertical washing machine

Abstract

The invention relates to the technical field of washing machines, and discloses a vertical washing machine which comprises a box body, an outer barrel, an inner barrel, a plurality of water guide holes, a plurality of water guide groove plates, a water guide pipe and a sealing device, the inner barrel is connected with a power device through a rotating shaft, the water guide holes are formed in the bottom of the inner barrel, and the water guide groove plates are radially arranged on the outer wall of the inner barrel; the water guide pipe is arranged in the inner barrel and matched with the outer wall of the inner barrel to form a water guide cavity, a through hole corresponding to the water guide groove plate is formed in the inner barrel, one end of the water guide pipe is communicated with an outlet of the water guide cavity, the other end of the water guide pipe is communicated with the water guide hole, and a sealing device is arranged on the outer barrel; the outer wall of the inner barrel is matched with the water guide groove plate to form the water guide cavity, water in the water guide cavity is discharged in cooperation with the corresponding through hole and the water guide pipe, the sealing device of the outer barrel forms a drainage channel, the water storage volume outside the inner barrel is effectively reduced through the water guide cavity, and water and detergent are saved; water in the inner barrel and the water guide cavity is prevented from flowing to a gap between the inner barrel and the outer barrel.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of washing machines, in particular to a vertical washing machine. BACKGROUND

[0002] The existing vertical washing machine has a large gap between the inner drum and the outer drum. During washing, a large amount of water is stored in the gap. Due to the location of the stored water and the water flow circulation characteristics inside the washing machine, the stored water is difficult to fully participate in the washing process of the clothes.

[0003] During actual washing operation, the inner drum mainly relies on rotation and the protruding structure on the drum wall to drive the water flow to wash the clothes. The stored water in the gap between the outer drum and the inner drum is difficult to form effective circulation and mixing with the washing water flow in the inner drum, and can only be in a relatively static or weak flow state. During washing, the water in the gap between the outer drum and the inner drum not only has little effect on clothes washing, but also dissolves part of the detergent, resulting in waste of water resources and detergent.

[0004] Therefore, the prior art still needs to be improved and developed. SUMMARY

[0005] In view of the above shortcomings of the prior art, the purpose of the present application is to provide a vertical washing machine, which aims to solve the problem of waste of water resources and detergent caused by the gap between the inner drum and the outer drum in the prior art vertical washing machine.

[0006] The technical scheme adopted by the present application to solve the technical problem is as follows:

[0007] A vertical washing machine, comprising a box body and an outer drum arranged inside the box body, wherein the bottom of the outer drum is provided with a drain hole, and the inside of the box body is provided with a power device, further comprising:

[0008] An inner drum is rotatably arranged inside the outer drum, wherein the bottom of the inner drum is provided with a rotating shaft, one end of the rotating shaft away from the inner drum penetrates through the outer drum and is connected with the power device;

[0009] A plurality of water guide holes are arranged on the bottom of the inner drum, and the water guide holes are in communication with the drain hole;

[0010] A plurality of water guide groove plates are arranged on the outer wall of the inner drum in a radial manner and cooperate with the outer wall of the inner drum to form a water guide cavity, and the inner drum is provided with through holes corresponding to the water guide groove plates to communicate the water guide cavity with the inner cavity of the inner drum;

[0011] A water guide pipe is in communication at one end with the outlet of the water guide cavity and at the other end with the water guide hole;

[0012] A sealing device is arranged on the outer drum; the sealing device cooperates with the inner drum and the rotating shaft to form a water drainage passage between the inner drum and the outer drum.

[0013] Further, the sealing device comprises:

[0014] A first sealing assembly is arranged on the outer drum; the first sealing assembly cooperates with the rotating shaft to realize sealing between the rotating shaft and the outer drum.

[0015] A second sealing assembly is arranged on the outer drum; the second sealing assembly cooperates with the bottom of the inner drum to realize sealing between the outer drum and the inner drum.

[0016] Further, the first sealing assembly comprises:

[0017] A bearing seat is arranged inside the outer drum; a mounting hole is formed in the center of the bearing seat, and the bottom of the outer drum is provided with a first opening, and the bearing seat is located in the first opening.

[0018] A plurality of bearings are arranged in the mounting hole.

[0019] A first annular water seal is arranged on one end of the inner wall of the mounting hole, and the other end abuts against the rotating shaft.

[0020] Further, the second sealing assembly comprises:

[0021] An outer drum annular rib is arranged on the outer drum; the outer drum annular rib is coaxially arranged with the outer drum.

[0022] A second annular water seal is arranged on the inner side of the outer drum annular rib; the second annular water seal abuts against the inner drum.

[0023] Further, the bottom of the inner drum is provided with a fixing flange, the bottom of the fixing flange is provided with a flange annular rib, the second annular water seal abuts against the flange annular rib, and the rotating shaft is connected with the fixing flange through bolts.

[0024] Further, a protective cover is arranged inside the inner drum, the protective cover is located on the top of the fixing flange, the protective cover is provided with a water leakage hole, and the protective cover cooperates with the fixing flange to form a containing cavity.

[0025] Further, the protective cover is a pulsator with a convex portion in the middle and blades at the bottom.

[0026] Further, a water drainage valve is arranged at the outlet of the water drainage hole.

[0027] Further, a side blade is arranged inside the inner drum.

[0028] Further, the side wall of the side blade is at an angle with the inner wall of the inner drum.

[0029] Compared with the prior art, the present application has the following advantages:

[0030] In the present application, the inner drum is connected with the power device through the rotating shaft, the bottom of the inner drum is provided with a plurality of water guide holes which are communicated with the drain hole, a plurality of water guide groove plates are radially arranged on the outer wall of the inner drum and cooperate with the outer wall of the inner drum to form a water guide cavity, a through hole corresponding to the water guide groove plate is arranged on the inner drum, one end of the water guide pipe is communicated with the outlet of the water guide cavity and the other end is communicated with the water guide hole, so as to realize the discharge of water in the water guide cavity, and the sealing device is arranged on the outer drum to form a drain passage between the inner drum and the outer drum; by arranging the water guide holes in the bottom of the inner drum and communicating them with the drain hole, the water guide cavity is formed by the cooperation of the radial water guide groove plates on the outer wall, and the corresponding through hole and the water guide pipe are matched, so as to realize the discharge of water in the water guide cavity, and the sealing device of the outer drum forms a drain passage, which not only effectively reduces the water storage volume outside the inner drum by means of the water guide cavity, so as to achieve the effects of water saving and detergent saving, but also avoids the problem of water leakage by using the sealing device, so as to prevent the water in the inner drum and the water guide cavity from flowing into the gap between the inner drum and the outer drum, thereby optimizing the water resource utilization and operation stability of the vertical washing machine. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0032] Figure 2 It is an enlarged schematic diagram of A of Figure 1

[0033] Figure 3 It is a schematic diagram of the water guide pipe structure of the present application.

[0034] Figure 4 It is an enlarged schematic diagram of B of Figure 3

[0035] Figure 5 It is an enlarged schematic diagram of C of Figure 3

[0036] Figure 6 It is a schematic diagram of the side blade structure of the present application.

[0037] The numbers in the figure represent: 1, outer drum; 11, drain hole; 2, inner drum; 21, rotating shaft; 22, water guide hole; 23, water guide groove plate; 24, water guide pipe; 25, fixed flange; 251, flange annular rib; 26, protective cover; 261, water leakage hole; 3, power device; 4, sealing device; 41, first sealing assembly; 411, bearing seat; 412, bearing; 413, first annular water seal; 42, second sealing assembly; 421, outer drum annular rib; 422, second annular water seal; 5, side blade.​​​ Detailed Implementation

[0038] To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] In view of the shortcomings of the prior art, this embodiment provides a vertical washing machine, which can be referred to as follows:

[0042] As attached Figure 1 and attached Figure 2As shown, a vertical washing machine includes a cabinet, an outer drum 1, an inner drum 2, a plurality of water guide holes 22, a plurality of water guide groove plates 23, a water guide pipe 24, and a sealing device 4; the outer drum 1 is arranged inside the cabinet, the inner drum 2 is connected to the power device 3 through the bottom shaft 21 to realize rotation, the shaft 21 penetrates the bottom wall of the outer drum 1 and is sealingly matched with the bottom wall, the bottom of the inner drum 2 is provided with the water guide hole 22 connected to the drain hole 11 of the outer drum 1; a plurality of water guide groove plates 23 are arranged on the outer wall of the inner drum 2 in a radial manner, and the water guide groove plate 23 is provided with a groove on the side close to the inner drum 2; the water guide groove plate 23 is matched with the outer wall of the inner drum 2, so that the groove of the water guide groove plate 23 cooperates with the outer wall of the inner drum 2 to form a water guide cavity with an outlet at the bottom, the water guide cavity is located in the gap between the inner drum 2 and the outer drum 1 and is smaller than the size of the gap; the inner drum 2 is provided with a through hole corresponding to the water guide groove plate 23, so as to communicate the water guide cavity with the inner cavity of the inner drum 2, facilitating drainage and dehydration of clothes; the inner drum 2 and the outer drum 1 are further provided with the water guide pipe 24, one end of the water guide pipe 24 is communicated with the outlet of the water guide cavity, the other end is communicated with the water guide hole 22, and the drainage in the water guide cavity is realized; the outer drum 1 is further provided with the sealing device 4, the sealing device 4 is matched with the inner drum 2 and the shaft 21 to form a drainage channel between the inner drum 2 and the outer drum 1, facilitating the flow of water from the water guide hole 22 to the drain hole 11.

[0043] Among them, the water guide groove plate 23 refers to a plate-shaped structure uniformly distributed along the circumference of the inner drum 2, which can be fixed to the outer wall of the inner drum 2 by welding or one-piece forming, and the water guide cavity formed by the water guide groove plate 23 and the outer wall of the inner drum 2 realizes directional guidance of water flow. The water guide pipe 24 refers to a channel connecting the water guide cavity and the water guide hole 22, which can be a flexible silicone tube or a hard plastic tube, used to establish a drainage path between the inner and outer drums 1. The sealing device 4 refers to a double structure including sealing of the shaft 21 and sealing of the inner drum 2, which can be in the form of a combination of mechanical sealing and elastic water sealing to ensure the sealing performance between the rotating part and the fixed part.

[0044] Specifically, during washing, the water flow of the inner drum 2 will flow into the water guide cavity, and due to the small volume of the water guide cavity, the use of water resources can be effectively reduced, and the uneven and waste of detergent can also be avoided; when draining, the drain hole 11 is opened, the water in the water guide cavity and the water in the inner drum 2 flow to the drain pipe through the water guide hole 22, and are discharged through the drain hole 11; when dehydrating, the water of the clothes enters the water guide cavity through the through hole, and flows to the water guide hole 22, the drain pipe and the drain hole 11 under the action of the water guide cavity and the water guide pipe 24, and then is discharged outside the cabinet.

[0045] Compared with the prior art, the traditional washing machine causes water waste when water flows into the gap between the inner drum 2 and the outer drum 1, and the increase in water flow also causes an increase in detergent, and the water and detergent in the gap do not participate in washing, thereby causing waste of detergent. The present application reduces the amount of water stored outside the inner drum 2 by the combination of the water guide groove plate 23 and the water guide pipe 24, and also performs drainage and dewatering by the combination of the water guide cavity and the water guide pipe 24, thereby effectively saving water resources and detergent.

[0046] The present application forms a smaller water guide cavity by the cooperation of the water guide groove plate 23 and the outer wall of the inner drum 2, replaces the traditional storage mode of water in the gap between the inner drum 2 and the outer drum 1 of the washing machine, reduces the invalid storage of water outside the inner drum 2 during washing, and reduces water consumption; at the same time, the water guide cavity is in communication with the inner cavity of the inner drum 2, so that the detergent fully participates in washing with the water flow, avoids the waste of detergent caused by the non-participation of the traditional gap storage in washing, and the moisture of the clothes enters the water guide cavity through the through hole during dewatering, is discharged through the water guide pipe 24, the water guide hole 22 and the drainage hole 11, and the drainage and dewatering are efficient, the sealing device 4 guarantees the sealing of the rotating and fixed parts, improves the operation stability, effectively saves water resources and detergent, and optimizes the washing and dewatering process.

[0047] In the embodiment, the outer drum 1 is arranged on the cabinet through a suspension assembly, and the suspension assembly is a prior art; the power device 3 is a motor.

[0048] As shown in Figs. 1 and 2, the present application further comprises a sealing device 4. Figure 1 and Figs. 3 and 4, the present application further comprises a sealing device 4. Figure 2 The sealing device 4 comprises a first sealing assembly 41 and a second sealing assembly 42. The first sealing assembly 41 is arranged on the outer drum 1 and cooperates with the rotating shaft 21 to realize the sealing of the rotating shaft 21 and the outer drum 1; and the second sealing assembly 42 is arranged on the outer drum 1 and cooperates with the bottom of the inner drum 2 to realize the sealing of the outer drum 1 and the inner drum 2.

[0049] The first sealing assembly 41 is a dynamic sealing structure arranged at the connection between the rotating shaft 21 and the outer drum 1, and can be realized by a combination of a bearing seat 411 and an annular water seal. The bearing seat 411 is used to support the rotation of the rotating shaft 21, and the annular water seal forms an axial seal through elastic contact to prevent water flow from leaking along the rotating shaft 21 in the axial direction. The second sealing assembly 42 is a planar sealing structure arranged between the bottom of the inner drum 2 and the outer drum 1, and can be realized by a combination of an annular rib and an annular water seal. The annular rib forms a sealing contact surface, and the annular water seal compensates for the assembly gap through elastic deformation to prevent water flow from seeping out from the edge of the bottom of the inner drum 2.

[0050] Specifically, when the inner drum 2 rotates at high speed, the annular water seal in the first sealing assembly 41 maintains dynamic contact with the rotating shaft 21 under the action of the annular spring, and the multi-stage sealing surface formed by the three inclined angle positions on the annular water seal can adapt to the radial runout of the rotating shaft 21. The annular water seal in the second sealing assembly 42 forms a planar contact seal with the annular flange ring 251 at the bottom of the inner drum 2, and generates a self-tightening effect under the action of the washing water pressure. The two sealing assemblies are designed for the physical characteristics of the dynamic seal of the rotating shaft 21.

[0051] The sealing device 4 of the present application achieves efficient sealing through the cooperation of the first sealing assembly 41 and the second sealing assembly 42: the first sealing assembly 41 supports the rotating shaft 21 with the bearing seat 411, and the annular water seal adapts to the radial runout of the rotating shaft 21 through elastic contact and multi-stage sealing surface, preventing water from leaking along the axial direction of the rotating shaft 21; the second sealing assembly 42 forms a planar contact with the water seal through the annular flange, avoiding the flow of water in the inner drum 2 and the water guide cavity to the gap between the inner drum 2 and the outer drum 1, preventing the waste of water resources. The double sealing is designed for the characteristics of the rotating part, ensuring the sealing performance of the washing machine during operation, avoiding the influence of water leakage on the stable operation of the equipment and the waste of water resources.

[0052] As shown in the accompanying drawings Figure 3 and the accompanying drawings Figure 5 The present application further provides that the first sealing assembly 41 comprises a bearing seat 411 arranged inside the outer drum 1, the center of the bearing seat 411 is provided with a mounting hole, the bottom of the outer drum 1 is provided with a first opening, and the bearing seat 411 is located in the first opening; a plurality of bearings 412 are arranged in the mounting hole; a first annular water seal 413 is arranged at one end of the inner wall of the mounting hole and abuts against the rotating shaft 21 at the other end, the abutting surface of the first annular water seal 413 is provided with three inclined angle positions, and an annular spring is arranged outside the first annular water seal 413.

[0053] The bearing seat 411 is a support structure for bearing the rotation of the rotating shaft 21, which is fixedly connected with the outer drum 1 by being nested in the first opening, and is used to ensure the concentricity of the rotating shaft 21 and the outer drum 1. The mounting hole is a through hole provided in the center of the bearing seat 411, which is used to accommodate the axial arrangement of the plurality of bearings 412. The plurality of bearings 412 are rolling element assemblies distributed in the mounting hole, which can be specifically arranged in combination with deep groove ball bearings 412 and tapered roller bearings 412 to form a distributed support structure to disperse the radial load when the rotating shaft 21 rotates. The first annular water seal 413 is an annular part with an elastic sealing lip, and the three inclined angle positions arranged on the abutting surface form a stepped sealing interface, which generates a radial pre-tightening force under the action of the annular spring. The directions of the three inclined angle positions are upward, i.e. the tips of the inclined angle positions are directed towards the inner drum 2. The annular spring is an elastic element arranged outside the first annular water seal 413, which can be specifically a stainless steel coil spring, and maintains the dynamic contact pressure between the water seal and the rotating shaft 21 through uniform distributed elastic force.

[0054] Specifically, the bearing seat 411 is mounted by nesting in the first opening, so that the rotation axis 21 of the rotating shaft 21 is coincident with the central axis of the outer barrel 1. The plurality of bearings 412 arranged in the mounting hole in the axial direction form a hierarchical support structure, and each bearing 412 bears different directional load components when the rotating shaft 21 rotates at high speed. The three inclined angles of the first annular water seal 413 form three levels of sealing interfaces, and each inclined angle can compensate for the deformation in stages when the rotating shaft 21 is radially offset. The radial pre-tightening force of the annular spring allows the water seal sealing lip to always adhere to the surface of the rotating shaft 21, while allowing the water seal to displace with the rotating shaft 21 in the axial direction. During the rotation of the rotating shaft 21, the deformation compensation of the three inclined angles and the elastic deformation of the spring work together to form a dynamically adaptive sealing interface.

[0055] Through the above technical solutions, the application effectively solves the leakage problem of the sealing interface of the rotating shaft 21 caused by mechanical vibration, reduces the friction resistance when the rotating shaft 21 rotates, avoids the water leakage phenomenon caused by sealing failure, and prolongs the service life of the bearing 412 and the water seal assembly.

[0056] As shown in the accompanying drawings Figure 3 and the accompanying drawings Figure 4 The application further provides a second sealing assembly 42 including an outer barrel 1 annular rib and a second annular water seal 422 arranged inside the outer barrel 1 annular rib. The outer barrel 1 annular rib is coaxially arranged with the outer barrel 1, and the second annular water seal 422 abuts against the inner barrel 2, and the abutting surface is provided with three inclined angles and is externally sleeved with an annular spring.

[0057] The outer barrel 1 annular rib refers to a ring-shaped protruding structure coinciding with the axis of the outer barrel 1, which can be integrally formed with the outer barrel 1 body by injection molding or welding, and is used to provide a mounting base for the second annular water seal 422 and ensure the coaxiality of the sealing assembly. The second annular water seal 422 refers to a ring-shaped sealing element with multiple sealing interfaces, which can be made of rubber or polyurethane material. The second annular water seal 422 includes three inclined angles, which form a stepped contact surface and realize dynamic sealing compensation under the radial pressure of the annular spring. The annular spring refers to an elastic element sleeved on the outer periphery of the second annular water seal 422, which can be a stainless steel spiral spring or a wave spring, and is used to apply a continuous radial pressure to the second annular water seal 422 to compensate for the wear of the sealing surface.

[0058] Specifically, the axial extension feature of the outer drum 1 annular rib ensures that the second sealing assembly 42 is kept in line with the inner drum 2 rotating shaft 21, avoiding partial wear caused by eccentricity. The three inclined angle positions of the second annular water seal 422 form three contact bands with different angles, generating hydrodynamic pressure effect when the inner drum 2 rotates, enhancing the lubrication state of the sealing interface. The pre-tightening force of the annular spring keeps the second annular water seal 422 always in close contact with the surface of the inner drum 2, and when the inner drum 2 moves axially, the inclined angle position structure allows the sealing surface to produce a slight deformation without losing the sealing performance. This combined structure forms multiple sealing barriers under dynamic working conditions, effectively blocking the path of washing water permeating into the gap between the outer drum 1 and the inner drum 2.

[0059] Through the above technical solutions, the present application effectively prevents the leakage of washing water into the gap between the inner and outer drums 1, reduces the amount of invalid water storage in the gap area, enables the detergent solution to fully participate in the laundry process, avoids the invalid consumption of detergent in the gap area, and improves the washing efficiency while reducing water waste.

[0060] As shown in the accompanying drawings, Figure 3 The present application further provides that the bottom of the inner drum 2 is provided with a fixed flange 25, the bottom of the fixed flange 25 is provided with a flange annular rib 251, the second annular water seal 422 abuts against the flange annular rib 251, and the rotating shaft 21 is connected with the fixed flange 25 by bolts.

[0061] The fixed flange 25 refers to an annular disc-shaped structure rigidly connected with the bottom of the inner drum 2, which can be realized by stainless steel castings or engineering plastic injection moldings, and its function is to provide a mounting reference surface for the rotating shaft 21 and to disperse the rotating load. The flange annular rib 251 refers to a protruding structure extending circumferentially along the bottom of the fixed flange 25, which can be realized by an annular rib integrally formed with the fixed flange 25, and it forms a dynamic sealing interface through linear contact with the second annular water seal 422. The bolt connection refers to the mechanical connection of the rotating shaft 21 and the fixed flange 25 through threaded fasteners, which can be realized by hexagonal head bolts with lock washers, and its function is to transmit torque while maintaining constant pressure on the water seal of the flange annular rib 251.

[0062] Specifically, when the inner drum 2 rotates, the fixed flange 25 is rigidly connected with the rotating shaft 21 by bolts, so that the flange annular rib 251 always abuts against the second annular water seal 422. The circumferential protruding feature of the flange annular rib 251 causes the water seal to deform elastically, forming a self-compensating sealing structure. When the size of the components fluctuates due to vibration or temperature changes, the linear contact mode of the flange annular rib 251 can reduce the frictional resistance, while the contact pressure of the sealing surface is maintained by the bolt pre-tightening force, blocking the path of water flow permeating along the rotating shaft 21 in the axial direction.

[0063] By the technical scheme, the sealing reliability and maintainability of the rotating shaft 21 fixing structure are solved, the washing water is prevented from seeping into the gap between the inner drum 2 and the outer drum 1 through the rotating shaft 21 connection, the energy loss caused by the friction of the rotating part is reduced, and the service life of the sealing assembly is prolonged.

[0064] As shown in the accompanying drawings, Figure 3 The inner drum 2 is further provided with a protective cover 26, the protective cover 26 is located on the top of the fixing flange 25, the protective cover 26 is provided with a water leakage hole 261, and the protective cover 26 and the fixing flange 25 cooperate to form a containing cavity, and the outlet of the water guide pipe 24 is located in the containing cavity.

[0065] The protective cover 26 refers to an isolation structure covering the top of the fixing flange 25, which prevents the clothes from directly contacting the fixing flange 25 by physical isolation. The water leakage hole 261 refers to a through hole opened on the protective cover 26, which can be realized by arranging a circular hole array with a diameter of 3-5 mm, and its function is to drain water. The containing cavity refers to a closed space formed by the cooperation of the protective cover 26 and the fixing flange 25, which can be realized by extending the edge of the protective cover 26 downward and adhering to the surface of the fixing flange 25, and its function is to provide a directional water collection area for the outlet of the water guide pipe 24 to avoid water dispersion. The outlet of the water guide pipe 24 is located in the containing cavity, which means that the end of the water guide pipe 24 extends to the cavity between the protective cover 26 and the fixing flange 25, which can be realized by bending the water guide pipe 24 to make its outlet face the containing cavity, and its function is to guide the water flow to concentrate and discharge, reducing residual water.

[0066] Specifically, the protective cover 26 is arranged on the bottom wall of the inner drum 2 by bolts or the rotating shaft 21, the fixing flange 25 can be clamped in the inner drum 2, and the water leakage holes 261 are uniformly distributed on the planar area of the protective cover 26. When the inner drum 2 rotates, the protrusions or blade structures of the protective cover 26 drive the water flow to move, the washing water enters the containing cavity through the water leakage holes 261, and then is discharged through the water guide pipe 24. Due to the isolation effect of the protective cover 26, the clothes cannot contact the bolt connection of the fixing flange 25, avoiding entanglement or wear; at the same time, the pore size of the water leakage hole 261 can filter impurities such as fibers of the clothes, preventing the drainage channel from being blocked. The outlet of the water guide pipe 24 is arranged at the bottom of the containing cavity, so that the water flow is quickly discharged under the action of gravity, reducing the risk of bacterial growth caused by water accumulation in the cavity.

[0067] By the technical scheme, the physical isolation of the clothes and the fixing flange 25 connection structure is realized, the clothes are prevented from being damaged during the washing process; the pore size design of the water leakage hole 261 effectively filters impurities, avoiding the blockage of the drain pipe; the directional water collection design of the outlet of the water guide pipe 24 optimizes the drainage path, reducing water residue, thereby ensuring the drainage efficiency while improving the reliability of the equipment.

[0068] This application further proposes that the protective cover 26 is a pulsator with a central protrusion and blades at the bottom.

[0069] The protective cover 26 refers to the structural component that covers the top of the fixed flange 25 and can be rotatably installed with the inner tank 2. The protrusion refers to the three-dimensional structure extending upward from the central area of ​​the protective cover 26, which can be in the shape of a cone or hemispherical geometry. It generates centrifugal force through rotation to lift the water flow at the bottom upward.

[0070] Specifically, when the inner tub 2 rotates, the protective cover 26 can drive the water flow to form a circulation, which not only plays a protective role, but also helps to enhance the rinsing force of the water flow during washing.

[0071] This application further proposes to install a drain valve at the outlet of the drain hole 11.

[0072] The drain valve is a device used to control the opening and closing of the fluid passage. It can be implemented using a solenoid valve or a mechanical valve. Its installation position is located at the fluid outlet end of the drain hole 11, and the drain flow rate is adjusted by the opening and closing action of the valve body. The outlet of the drain hole 11 refers to the part at the end of the drain passage that connects to the external pipeline. Specifically, the drain valve can be fixed by a flange interface or a threaded connection. This position allows the valve to act directly at the end of the drain path, achieving precise control of fluid flow.

[0073] Specifically, when the washing machine enters the draining stage, the drain valve is opened, and the water in the water guide cavity and inner tub 2 flows through the water guide hole 22 into the drain channel and is discharged outward through the drain hole 11. During the washing or rinsing process, the drain valve remains closed, blocking the connection between the drain channel and the outside, preventing water from being accidentally discharged before the washing program is completed. This control method ensures that the draining action only occurs in the preset stage, avoiding water waste caused by unnecessary drainage.

[0074] As attached Figure 2 and attached Figure 6 As shown, this application further proposes that the inner barrel 2 is provided with side blades 5 inside, and the side blades 5 are in a regular shape or an irregular shape.

[0075] The side blade 5 refers to a plate-like structure fixed to the inner wall of the inner barrel 2. It can be implemented using metal or plastic parts with curved or polygonal contours, and its installation direction forms a non-perpendicular angle with the rotation axis 21 of the inner barrel 2. This structure generates multi-directional disturbance by changing the water flow direction, causing water stored in the gap of the outer barrel 1 to be drawn into the inner barrel 2 for circulation. The irregular shape refers to the asymmetrical geometric features of the blade cross-section, which can be achieved using wavy edges, local concavities, or convex shapes. This design generates turbulence by creating an irregular flow field, enhancing the mixing intensity of the water flow in the inner and outer barrel 1 regions.

[0076] Specifically, when the inner drum 2 rotates, the special-shaped side blade 5 pushes the water flow to generate asymmetric motion. The curved structure of the blade leading edge makes the water flow accelerate and separate in the tangential direction, and the broken line profile of the trailing edge induces the fluid to form a vortex.

[0077] Further, the side blade of the inner surface of the inner drum 2 can be provided with an S shape or other shapes to increase the change of the water flow and improve the washing effect.

[0078] The present application further proposes that the side wall of the side blade 5 and the inner wall of the inner drum 2 form a certain angle.

[0079] The side wall of the side blade 5 and the inner wall of the inner drum 2 form a certain angle means that the side wall surface of the side blade 5 and the inner wall of the inner drum 2 form a non-parallel inclined angle, which can be achieved by presetting the inclined angle when the side blade 5 is welded or integrally formed. The angle makes the water flow produce asymmetric impact on the blade surface, thereby changing the water flow direction.

[0080] Specifically, when the inner drum 2 rotates, the inclined side blade 5 surface decomposes the water flow into axial and radial components, the axial component pushes the water flow to form a spiral upward motion along the inner drum 2 wall, and the radial component forms a pressure difference between the inner drum 2 and the water guide cavity, forcing the water in the outer drum 1 gap to enter the inner drum 2 through the water guide groove plate 23 channel to participate in circulation. The turbulent flow generated by the inclined side wall can destroy the water flow boundary layer and prevent the detergent from depositing on the blade surface.

[0081] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the aspects disclosed herein. The specification and examples given are considered exemplary only, and the true scope and spirit of the application is indicated by the claims.

Claims

1. A vertical washing machine comprising a cabinet and a tub provided inside the cabinet, a bottom of the tub being provided with a drain hole, an inside of the cabinet being provided with a power device, characterized in that, Also include: Inner barrel, rotation is arranged in the inside of the outer barrel; The bottom of the inner barrel is provided with a rotating shaft, one end of the rotating shaft away from the inner barrel penetrates the outer barrel and is connected with the power device; A plurality of water guide holes are arranged on the bottom of the inner barrel; The water guide hole is communicated with the drain hole; A plurality of water guide groove plates are arranged on the outer wall of the inner barrel in a radial manner and cooperate with the outer wall of the inner barrel to form a water guide cavity; The inner barrel is provided with a through hole corresponding to the water guide groove plate, so as to communicate the water guide cavity with the inner cavity of the inner barrel; The water guide pipe is communicated with the outlet of the water guide cavity at one end and communicated with the water guide hole at the other end; The sealing device is arranged on the outer barrel; The sealing device cooperates with the inner barrel and the rotating shaft to form a drainage channel between the inner barrel and the outer barrel.

2. A vertical axis laundry washing machine according to claim 1, characterized in that The sealing device comprises: The first sealing assembly is arranged on the outer barrel; The first sealing assembly cooperates with the rotating shaft to realize the sealing of the rotating shaft and the outer barrel; The second sealing assembly is arranged on the outer barrel; The second sealing assembly cooperates with the bottom of the inner barrel to realize the sealing of the outer barrel and the inner barrel.

3. A vertical axis washing machine as claimed in claim 2, characterised in that, The first sealing assembly comprises: Bearing seat, arranged in the inside of the outer barrel; The center of the bearing seat is provided with a mounting hole, the bottom of the outer barrel is provided with a first opening, and the bearing seat is located in the first opening; A plurality of bearings are arranged in the mounting hole; The first annular water seal is arranged on the inner wall of the mounting hole, and the other end is abutted with the rotating shaft.

4. A vertical axis washing machine as claimed in claim 2, characterised in that, The second sealing assembly comprises: The outer barrel annular rib is arranged on the outer barrel; The outer barrel annular rib is coaxially arranged with the outer barrel; The second annular water seal is arranged on the inner side of the outer barrel annular rib; The second annular water seal is abutted with the inner barrel.

5. A vertical axis laundry washing machine according to claim 4, characterized in that The bottom of the inner barrel is provided with a fixed flange, the bottom of the fixed flange is provided with a flange annular rib, the second annular water seal is abutted with the flange annular rib, and the rotating shaft is connected with the fixed flange through bolts.

6. A vertical axis washing machine as claimed in claim 5, characterised in that, The inner barrel is provided with a protective cover, the protective cover is located on the top of the fixed flange, the protective cover is provided with a water leakage hole, and the protective cover cooperates with the fixed flange to form a containing cavity.

7. A vertical axis washing machine as claimed in claim 6, characterized in that The protective cover is a pulsator with a convex part in the middle and a blade at the bottom.

8. A vertical axis washing machine as claimed in claim 1, characterized in that The outlet of the drain hole is provided with a drain valve.

9. A vertical axis washing machine as claimed in claim 1, characterized in that, The inner barrel is provided with a side blade.

10. A vertical axis washing machine as claimed in claim 9, characterized in that, The side wall of the side blade is at a certain angle with the inner wall of the inner barrel.

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