Inner barrel assembly and washing machine

Abstract

The invention belongs to the technical field of washing equipment, and discloses an inner barrel assembly and a washing machine, a mounting through hole is formed in a barrel bottom, a water inlet shaft is arranged in the mounting through hole in a penetrating mode with a gap, and a water inlet spray head is mounted at the water outlet end of the water inlet shaft; the mounting through hole is provided with a bent part; a water retaining part at least partially surrounding the outer side of the bent part is arranged in the water inlet spray head; and the bending part obliquely extends towards the water retaining part. According to the washing machine, the inner side and the outer side of the inner barrel are communicated through the gap between the water inlet shaft and the mounting through hole, air pressure inside and outside the inner barrel can be balanced in the water inlet process, the water retaining part is matched with the bent part, washing water can be effectively prevented from crossing the bent part and then leaking out from the position between the water inlet shaft and the mounting through hole, and the water leakage problem of the inner barrel is avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of washing equipment, in particular, relates to an inner drum assembly and a washing machine. BACKGROUND

[0002] The existing washing machine generally includes a fixedly arranged outer drum and a rotatable inner drum. A plurality of dewatering holes are arranged on the drum wall of the inner drum, so that the outer drum and the inner drum are communicated. However, during the washing process, the washing water between the inner drum and the outer drum cannot be utilized, resulting in the waste of the washing water. At the same time, the dirt generated during the washing process is partially left between the inner drum and the outer drum, which is difficult to clean. Long-term accumulation will pollute the washing water and affect the washing effect.

[0003] To solve the above problems, the prior art proposes a washing machine without dewatering holes on the inner drum, so that a sealed space is formed in the inner drum during the washing process, realizing that the inner drum can independently hold washing water, thereby avoiding the storage of water between the inner drum and the outer drum during the washing process, saving the amount of washing water, and greatly avoiding the accumulation of dirt between the inner drum and the outer drum. However, due to the closed space in the inner drum during the washing process, the method of filling water into the inner drum by filling water into the outer drum in the traditional washing machine is no longer applicable.

[0004] To realize the water filling of the above-mentioned washing machine without holes in the inner drum, the prior art proposes a scheme of arranging the driving shaft connected with the inner drum as a hollow structure to fill water into the inner drum. To further increase the water filling coverage area and improve the water filling effect, a water filling end cover is installed at the end of the driving shaft extending into the inner drum, so that the water flow is blocked by the water filling end cover to generate divergence and splashing. For example, the Chinese patent with the application number 202011212141.1 discloses a clothes processing device, which includes a drum. The center of the drum bottom is provided with an end cover. The end cover and the drum bottom jointly enclose a cavity. The cavity is divided into an independent water inlet channel and an air exchange channel. The water inlet channel introduces washing machine water into the drum. The air exchange channel connects the inside and outside of the drum.

[0005] In the above-mentioned scheme, the arrangement of the air exchange channel can keep the air pressure at the water inlet channel consistent with the outside of the drum during the water filling process, avoiding the influence of air pressure difference on the water flow. However, in the actual scheme, an exhaust hole is arranged on the drum bottom to connect the air exchange channel with the outside of the drum. During the washing process, the washing water entering the air exchange channel is easy to leak out from the exhaust hole, causing the problem of water leakage of the drum and affecting the washing effect.

[0006] Therefore, the present application is proposed. SUMMARY

[0007] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide an inner drum assembly and a washing machine, which can effectively prevent the occurrence of inner drum water leakage under the premise of ensuring the balance of the inner and outer air pressure of the inner drum during the water inlet process.

[0008] To solve the above technical problems, the basic idea of the technical solution of the present application is:

[0009] An inner drum assembly comprises:

[0010] A drum bottom flange is provided with a mounting through hole at the center, and the outer periphery of the mounting through hole has a bending portion extending inwardly to the inner side of the inner drum and gradually away from the axis of the inner drum;

[0011] A water inlet shaft is hollow inside to form a water inlet channel, and the water outlet end extends into the inner drum through the mounting through hole, and the outer peripheral wall of the water inlet shaft is spaced apart from the inner peripheral wall of the bending portion;

[0012] A water inlet nozzle is installed at the water outlet end of the water inlet shaft and forms an air exchange cavity communicating with the inner drum, and the air exchange cavity is provided with a water blocking portion surrounding the outer periphery of the bending portion, and the water blocking portion is spaced apart from the bending portion along the radial direction of the inner drum.

[0013] Further, the water inlet nozzle comprises a water inlet end cover covering the water outlet end of the water inlet shaft, and the inner cavity of the water inlet end cover has a sleeve portion sleeved on the water outlet end of the water inlet shaft, and the air exchange cavity is formed outside the sleeve portion;

[0014] The water blocking portion extends a certain distance to the inner wall of the water inlet end cover outside the sleeve portion, and then extends to the outer periphery side of the bending portion along the axial direction of the inner drum, and the extension end is spaced apart from the drum bottom flange.

[0015] Further, the outer peripheral wall of the water inlet shaft is provided with an inner recessed clamping groove in the region close to the water outlet end, and the sleeve portion is provided with a radial direction movable limiting piece;

[0016] The sleeve portion is provided with an axial direction movable lock sleeve, the inner peripheral wall of the lock sleeve abuts against the limiting piece, and the limiting piece is kept in the limiting state of being clamped into the clamping groove;

[0017] The lock sleeve extends a certain distance outward from the region abutting against the limiting piece, and then extends along the axial direction of the inner drum to form the water blocking portion;

[0018] Preferably, the water blocking portion extends outwardly and gradually approaches the drum bottom flange, and then continues to extend along the axial direction of the inner drum.

[0019] Further, the inner peripheral wall of the lock sleeve is locally protruded to form a locking portion abutting against the limiting piece;

[0020] The locking portion extends to the flange of the inner drum from the side of the flange of the inner drum to form a stop portion inside the water blocking portion, and the inner diameter of the extension end of the stop portion is larger than the inner diameter of the locking portion;

[0021] Preferably, the inner peripheral wall of the stop portion is gradually away from the axis of the inner drum by the inclined extension of the locking portion.

[0022] Further, the water inlet end cover is provided with a gas overflow hole communicating with the gas exchange cavity, and the outer peripheral wall of the water blocking portion is provided with an outer convex / inner concave dismounting portion;

[0023] Preferably, the dismounting portion is a convex rib surrounding the water blocking portion;

[0024] More preferably, the outer peripheral wall of the water blocking portion has a concave-convex alternating structure on one side of the convex rib in the circumferential direction.

[0025] Further, the water inlet nozzle is provided with an elastic member, one end of the elastic member abuts against the water inlet end cover, and the other end abuts against the locking sleeve;

[0026] Preferably, the inner peripheral wall of the locking sleeve is partially protruded to form a locking portion abutting against the limiting member, and the elastic member abuts against the side of the locking portion away from the flange of the inner drum.

[0027] Further, the elastic member is sleeved on the sleeve connecting portion, and the locking portion extends to the water inlet end cover from the side of the locking portion away from the flange of the inner drum to form an extension portion surrounding the outer periphery of the elastic member;

[0028] Preferably, the inner peripheral wall of the extension portion has a plurality of protruding structures distributed in the circumferential direction.

[0029] Further, the sleeve connecting portion is provided with a boss protruding from the outer peripheral wall at the end away from the flange of the inner drum, and the elastic member abuts against the boss;

[0030] Preferably, a plurality of bosses are arranged in the circumferential direction of the sleeve connecting portion.

[0031] Further, a sealing member is arranged between the open end of the water inlet end cover and the flange of the inner drum;

[0032] Preferably, the open end of the water inlet end cover is provided with a mounting groove extending in the circumferential direction, the side of the sealing member away from the flange of the inner drum is provided with a protruding plug-in portion, the plug-in portion is plugged into the mounting groove, and the other side of the sealing member is sealingly attached to the flange of the inner drum.

[0033] A washing machine has the above-mentioned inner drum assembly.

[0034] Compared with the prior art, the above technical solution has the following beneficial effects.

[0035] In the present application, the gap between the water inlet shaft and the mounting hole is reserved, so that the inner and outer sides of the inner cylinder can be communicated through the gap between the water inlet shaft and the mounting hole, thereby balancing the air pressure on the inner and outer sides of the inner cylinder during water inlet, and ensuring stable water inlet. The water retaining part can guide the washing water to the connection between the bending part and the cylinder bottom, and the bending part is arranged as a similar horn structure extending obliquely to the water retaining part, so that the washing water is difficult to flow over the bending part, thereby effectively preventing the washing water from leaking out of the gap between the water inlet shaft and the mounting hole, and avoiding the problem of water leakage of the inner cylinder.

[0036] In the present application, the water retaining part has an obliquely extending part, which can guide most of the washing water to flow away from the cylinder bottom, reduce the amount of water flowing to the bending part, and further reduce the possibility of water leakage of the inner cylinder. The convex ribs on the water retaining part can also prevent the washing water from flowing to the side of the cylinder bottom, thereby ensuring that the inner cylinder will not leak.

[0037] The specific embodiments of the present application will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0038] The accompanying drawings are part of the present application and serve to provide a further understanding of the present application, the schematic embodiments of the present application and their descriptions serve to explain the present application, but do not constitute an improper limitation on the present application. Obviously, the drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0039] Figure 1 is a structural schematic diagram of the inner cylinder assembly in the embodiment of the present application;

[0040] Figure 2 is a structural schematic diagram of the inner cylinder assembly in another view of the embodiment of the present application;

[0041] Figure 3 is an exploded view of the structure of the inner cylinder assembly in the embodiment of the present application;

[0042] Figure 4 is a sectional partial enlarged view of the inner cylinder assembly in the embodiment of the present application;

[0043] Figure 5 is a sectional partial enlarged view of the inner cylinder assembly in another view of the embodiment of the present application;

[0044] Figure 6 is a schematic diagram of the air exchange path of the inner cylinder assembly in the embodiment of the present application;

[0045] Figure 7 is a schematic diagram of the path of the water flow through the air exchange cavity in the embodiment of the present application;

[0046] Figure 8is an exploded view of the water inlet nozzle structure in the embodiment of the present application;

[0047] Figure 9 is another exploded view of the water inlet nozzle structure in the embodiment of the present application;

[0048] Figure 10 is a cross-sectional view of the water inlet end cover and the sealing member along the axis in the embodiment of the present application;

[0049] Figure 11 is a structural schematic view of the water inlet end cover in the embodiment of the present application;

[0050] Figure 12 is a structural schematic view of the lock sleeve in the embodiment of the present application;

[0051] Figure 13 is a cross-sectional view of the lock sleeve along the axis in the embodiment of the present application.

[0052] In the figure: 100, barrel bottom; 101, mounting through hole; 102, bending part; 200, tripod; 201, convex part; 300, water inlet nozzle; 301, water inlet cavity; 302, air exchange cavity; 310, water inlet end cover; 3101, first water inlet; 3102, second water inlet; 3103, air overflow hole; 311, sleeve joint part; 3111, sealing groove; 3112, snap spring groove; 3113, snap spring; 3114, convex table; 3115, ball hole; 3116, ball; 312, bottom wall; 313, side wall; 3131, mounting groove; 314, first recess; 315, second recess; 320, lock sleeve; 321, locking part; 322, stop part; 323, water blocking part; 324, convex rib; 325, auxiliary positioning recess; 326, extension part; 327, convex structure; 330, elastic member; 340, sealing ring; 350, sealing member; 351, plug-in part; 400, water inlet shaft; 401, clamping groove; 402, water inlet channel.

[0053] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0055] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0056] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0057] As shown in Figures 1 to 13 Embodiments of the present application provide an inner drum assembly, and a washing machine having the same.

[0058] As a specific embodiment, the washing machine is a drum washing machine which can at least perform washing treatment on clothes, comprising a cabinet, an outer drum is arranged in the cabinet, a rotatable inner drum is arranged in the outer drum, and the inner drum can independently hold water when washing clothes.

[0059] In a specific scheme, no dehydration hole is arranged on the drum wall of the inner drum, and an inner drum door is arranged at the drum opening. When washing clothes, the inner drum door is closed, so that the inner drum is in a closed state, thereby independently holding washing water. During washing / rinsing, no water is stored between the inner drum and the outer drum, so that the amount of washing water can be saved, and the purpose of avoiding the accumulation of dirt between the inner drum and the outer drum can be achieved.

[0060] Further, one drainage mode of the inner drum can be to arrange a drainage hole on the drum wall of the inner drum, and to mount a sealing assembly at the drainage hole. During washing / rinsing, the sealing assembly blocks the drainage hole, so that the inner drum independently holds water. When draining, the inner drum is controlled to reach a certain rotating speed, and the sealing assembly can open the drainage hole under the action of centrifugal force, so as to realize the drainage of washing water. The outer drum is in communication with the drainage structure of the washing machine, and the water drained from the inner drum enters the outer drum, and then is drained out of the washing machine through the drainage structure.

[0061] In an embodiment of the present invention, the inner drum is connected to a hollow water inlet shaft 400 for realizing the water inlet function of the inner drum. Specifically, the water inlet shaft 400 has a hollow interior forming a water inlet channel 402, and an installation through hole 101 is provided at the center of the bottom 100 of the inner drum. The water outlet end of the water inlet shaft 400 extends into the inner drum through the installation through hole 101. The water inlet end of the water inlet shaft 400 is connected to an external water source through the washing machine's water inlet system, so that tap water can be directly injected into the inner drum.

[0062] In a more specific structure, the bottom of the cylinder 100 is fixedly connected to the tripod 200, the water inlet shaft 400 is connected to the tripod 200, the water inlet shaft 400 is driven to rotate by the drive device, and then the tripod 200 can drive the inner cylinder to rotate.

[0063] In a further embodiment, the outer peripheral wall of the water inlet shaft 400 is spaced apart from the mounting through hole 101, and the inner and outer sides of the inner cylinder are connected through the gap between the water inlet shaft 400 and the mounting through hole 101.

[0064] In this way, when the washing machine is running, the closed inner drum can exchange gas with the outside through the gap between the water inlet shaft 400 and the mounting through hole 101, adjusting the air pressure inside the inner drum. For example, during the water intake process, the inner drum can expel air from the inner drum through the gap, thereby balancing the air pressure on both sides of the inner drum and preventing the air pressure inside the inner drum from increasing and affecting the water flow into the inner drum.

[0065] In one specific implementation, a water inlet nozzle 300 is installed at the outlet end of the water inlet shaft 400. Water flows out through the water inlet channel 402, is dispersed by the water inlet nozzle 300, and then flows into the inner cylinder. The water inlet nozzle 300 has an independent water inlet chamber 301 and a ventilation chamber 302, both of which are connected to the inner cylinder. The water inlet chamber 301 is connected to the water inlet channel 402, introducing the water flow into the inner cylinder. The ventilation chamber 302 is connected to the outer space of the inner cylinder through the gap at the mounting through hole 101. During the water intake process, air in the inner cylinder can enter the ventilation chamber 302 and then be discharged from the inner cylinder through the gap at the mounting through hole 101, achieving air pressure balance.

[0066] However, with the above structure, washing water may leak out from the mounting hole 101 during the washing / rinsing process. If the inner drum leaks a lot of water during the washing process, it will significantly affect the washing effect.

[0067] Example 1

[0068] like Figures 1 to 13 As shown, this embodiment provides an inner drum assembly and a washing machine having the inner drum assembly, which can effectively prevent water leakage from the inner drum while ensuring the balance of air pressure inside and outside the inner drum.

[0069] Specifically, in the embodiment, the inner cylinder assembly includes a cylinder bottom 100, a water inlet shaft 400 and a water inlet nozzle 300. The water inlet shaft 400 is hollow inside to form a water inlet channel 402, and the water outlet end of the water inlet channel 402 extends into the inner cylinder through a mounting through hole 101 in the center of the cylinder bottom 100, and there is a gap between the water inlet shaft 400 and the mounting through hole 101. The water outlet end of the water inlet shaft 400 is provided with the water inlet nozzle 300.

[0070] The edge of the mounting through hole 101 is provided with a bending portion 102 bent towards the inside of the inner cylinder, and the water inlet nozzle 300 is provided with a water blocking portion 323 at least partially surrounding the outside of the bending portion 102. The bending portion 102 is specifically provided to extend obliquely towards the water blocking portion 323.

[0071] More specifically, the bending portion 102 extends from the edge of the mounting through hole 101 towards the inside of the inner cylinder and gradually away from the axis of the inner cylinder, and obliquely towards the outer circumferential direction of the water blocking portion 323, and the outer circumferential wall of the water inlet shaft 400 is arranged in a spaced manner with the inner circumferential wall of the bending portion 102.

[0072] As a specific structure, the bending portion 102 and the edge of the mounting through hole 101 of the cylinder bottom 100 have a transition fillet.

[0073] In a specific embodiment, the water inlet nozzle 300 has a water inlet cavity 301 and a gas exchange cavity 302 inside, which are independent of each other and communicate with the inner cylinder. The water inlet channel 402 communicates with the water inlet cavity 301 to introduce the water flow into the inner cylinder. The gas exchange cavity 302 communicates with the space outside the inner cylinder through the gap between the water inlet shaft 400 and the mounting through hole 101, thereby realizing the communication between the inside and outside of the inner cylinder. The water blocking portion 323 is arranged in the gas exchange cavity 302.

[0074] In the above scheme, the extension end of the bending portion 102 can have a spacing in the radial direction with the inner circumferential wall of the water blocking portion 323, so that the inside of the inner cylinder is sequentially communicated to the outside of the inner cylinder through the spacing between the bending portion 102 and the water blocking portion 323, and the spacing between the bending portion 102 and the water inlet shaft 400.

[0075] Alternatively, the extension end of the bending portion 102 can also be in contact or close contact with the water blocking portion 323, but there is no strict sealing between the two, but there is a gap through which air can pass, which can also achieve the purpose of communication between the inside and outside of the inner cylinder.

[0076] In this embodiment, the washing machine with the inner drum assembly can be a drum washing machine, in which the axis of the inner drum is arranged in a horizontal or near-horizontal direction. The water inlet end of the water inlet shaft 400 is connected to an external water source through a water inlet system of the washing machine. When the washing machine is filled with water, the external tap water enters the water inlet channel 402 of the water inlet shaft 400 through the water inlet system, flows out of the water outlet end, enters the water inlet cavity 301 of the water inlet nozzle 300, and then flows into the inner drum. At the same time, the air in the inner drum enters the air exchange cavity 302 and can be discharged from the inner drum through the gap between the water inlet shaft 400 and the mounting hole 101.

[0077] Specifically, the inner drum assembly has the above structure, and a bending portion 102 similar to a flared mouth structure is formed around the mounting hole 101 on the inner side of the inner drum. During the water filling process of the washing machine, air can flow around the water blocking portion 323 and the bending portion 102 according to the path shown by the arrow in Figure 6 the middle, and then be discharged from the inner drum, achieving air pressure balance between the inner and outer sides of the inner drum.

[0078] However, during the washing process, referring to the path shown by the arrow in Figure 7 the middle, due to the presence of the water blocking portion 323, the washing water entering the air exchange cavity 302 cannot directly flow to the left end of the bending portion 102, but is guided by the water blocking portion 323 to the right end of the bending portion 102 around the mounting hole 101. The water level in the drum washing machine during the washing process does not reach the axis of the inner drum, so the amount of water entering the air exchange cavity 302 is not excessive. In addition, due to the inclined extension of the bending portion 102, after the small amount of washing water entering the air exchange cavity 302 is guided to the right end of the bending portion 102, it is difficult to flow upward along the outer peripheral wall of the bending portion 102 to overcome the bending portion 102, but will flow downward along the outer peripheral wall of the right end of the bending portion 102, and then be discharged from the air exchange cavity 302 through the lower region of the water inlet nozzle 300, and then return to the inner drum.

[0079] In a further aspect of the embodiment, the tripod 200 of the inner drum assembly is arranged with a gap on the outer side of the drum bottom 100, and the tripod 200 has a protruding portion 201 protruding towards the drum bottom 100 around the water inlet shaft 400 at the center. After the tripod 200 is assembled with the drum bottom 100, the protruding portion 201 is inserted into the mounting hole 101, and is arranged with a gap in the radial direction with the mounting hole 101.

[0080] As a specific structure, the tripod 200 is sleeved on the water inlet shaft 400, and the protruding portion 201 is formed by protruding towards the drum bottom 100 at the center. The inner peripheral wall of the bending portion 102 and the outer peripheral wall of the protruding portion 201 are arranged with a gap, and the surfaces of the tripod 200 opposite to the drum bottom 100 are arranged with a gap, so as to ensure the communication between the inner and outer sides of the inner drum.

[0081] In a preferred structure, the protruding end of the protruding portion 201 is substantially flush with the extension end of the bending portion 102.

[0082] It should be noted that in the embodiments of the present application, the "substantially flush" means flush or with a small distance difference.

[0083] In the embodiments, the drum bottom 100 can generate a large vibration amplitude in the axial direction during the operation of the washing machine, and even generate a deformation in the axial direction after a long time of use. However, in the radial direction, the drum bottom 100 can generate a small deformation amplitude. In the above scheme, the convex portion 201 of the tripod 200 and the mounting through hole 101 have a spacing in the radial direction, which will not be narrowed or even completely closed due to the deformation of the drum bottom 100, thereby ensuring that the inner drum has a stable ventilation effect, and the deformation of the drum bottom 100 will not affect the ventilation of the inner drum with the outside, thereby affecting the water inlet of the inner drum.

[0084] In further schemes of the embodiments, the water inlet nozzle 300 includes a water inlet end cover 310 covering the water outlet end of the water inlet shaft 400, one end of the water blocking portion 323 is assembled with the water inlet end cover 310, and the other end is spacedly surrounded outside the bending portion 102. The water blocking portion 323 has a transition section extending obliquely between the two ends to the inner wall of the water inlet end cover 310.

[0085] Specifically, the water inlet end cover 310 has a sleeve portion 311 sleeved on the water outlet end of the water inlet shaft 400 in the internal cavity. The inner side of the sleeve portion 311 forms a water inlet cavity 301, which is in communication with the inner drum and the water inlet channel 402, respectively. The ventilation cavity 302 is formed on the outer side of the sleeve portion 311 and is independent of the water inlet cavity 301.

[0086] The left end of the water blocking portion 323 is sleeved on the sleeve portion 311, and the transition section extends obliquely from the left end of the water blocking portion 323 to the area close to the inner wall of the water inlet end cover 310. At the end of the transition section, the water blocking portion 323 continues to extend to the outer circumferential side of the bending portion 102 at a certain angle relative to the transition section, and the extension end has a certain spacing from the inner surface of the drum bottom 100.

[0087] As a specific embodiment, the water inlet end cover 310 has a bottom wall 312 and a side wall 313 surrounding the bottom wall 312. The side wall 313 extends at a certain angle from the outer periphery of the bottom wall 312, and the inner diameter of the side wall 313 gradually increases along the extension direction, and the side wall 313 is bowl-shaped and inverted on the drum bottom 100.

[0088] The sleeve joint 311 extends axially from the outer periphery of the bottom wall 312 or a position close to the outer periphery of the bottom wall 312 towards the drum bottom 100, and the first water inlet 3101 is formed in the bottom wall 312, so as to communicate the water inlet cavity 301 inside the sleeve joint 311 with the inner drum. The first water inlet 3101 is coaxially arranged with the water inlet channel 402, and the water flow is discharged from the water outlet end of the water inlet shaft 400 into the water inlet cavity 301, and then enters the inner drum through the first water inlet 3101.

[0089] Further, the water inlet end cover 310 is further provided with a plurality of second water inlets 3102 distributed around the first water inlet 3101. In a specific structure, the second water inlets 3102 are formed in the side wall 313 of the water inlet end cover 310 close to the bottom wall 312, and the central axis of the second water inlet 3102 is parallel to the radial direction of the sleeve joint 311. During the water inlet process, the water flow in the water inlet cavity 301 can be discharged simultaneously through the first water inlet 3101 and the second water inlet 3102, so as to disperse the water flow and increase the coverage area of the water flow entering the inner drum, so as to more fully and uniformly wet the clothes in the drum.

[0090] The side wall 313 of the water inlet end cover 310 is provided with a gas overflow hole 3103 in a region away from the bottom wall 312, and the gas exchange cavity 302 is communicated with the inside of the inner drum through the gas overflow hole 3103, so as to balance the air pressure inside and outside the inner drum. During the water inlet process, the air in the inner drum enters the gas exchange cavity 302 through the gas overflow hole 3103, and then bypasses the water retaining portion 323 and the bending portion 102 in the gas exchange cavity 302, and then can be discharged from the inner drum through the gap between the convex portion 201 and the mounting through hole 101.

[0091] The water retaining portion 323 is located between the sleeve joint 311 and the side wall 313 of the water inlet end cover 310, extends from the outer side of the sleeve joint 311 to the inner wall of the water inlet end cover 310, extends to the outer periphery region of the bending portion 102 in the radial direction, and then extends to the outer periphery side of the bending portion 102 after bending by a certain angle, so as to form a semi-enclosed structure for the bending portion 102.

[0092] Specifically, the extension direction of the water retaining portion 323 after bending by a certain angle and then continuing to extend can be extending along the axial direction of the inner drum, or can be a certain inclination angle relative to the axial direction of the inner drum, and the inclination direction can be towards the drum wall of the inner drum or towards the central axis of the inner drum.

[0093] The extending end of the water blocking part 323 is closer to the bottom 100 relative to the edge of the air vent 3103. When the washing water enters the air chamber 302 from the air vent 3103, it is blocked by the water blocking part 323 and cannot directly flow to the left end opening of the bending part 102. The part of the washing water in contact with the water blocking part 323 flows to the left and flows along the outer peripheral wall of the sleeve part 311 to the lower space of the air chamber 302 and then is discharged back to the inner drum through another air vent 3103. Another part of the washing water flows along the water blocking part 323 to the right and falls into the space formed by the included angle between the bending part 102 and the bottom 100, and then flows downward along the outer peripheral wall of the bending part 102 and is finally discharged back to the inner drum through another air vent 3103.

[0094] In a preferred embodiment of the present embodiment, the outer wall of the water inlet end cover 310 is provided with a first groove 314, and the first water inlet 3101 and the second water inlet 3102 are arranged in the first groove 314.

[0095] In a specific structure, the first groove 314 has a first recessed area recessed inwardly from the outer surface of the bottom wall 312, and a plurality of second recessed areas extending from the outer periphery of the first recessed area to the side wall 313. The first water inlet 3101 is arranged in the first recessed area, and the second water inlet 3102 is arranged in the second recessed area. When the clothes cover the water inlet end cover 310, the clothes are supported by the outer wall of the water inlet end cover 310 and do not directly contact the bottom surface of the first groove 314, so that a certain gap can be maintained with the first water inlet 3101 and the second water inlet 3102 located in the first groove 314, avoiding the problem of poor water inlet caused by the clothes directly adhering to the outer periphery of the first water inlet 3101 and the second water inlet 3102.

[0096] Further, the outer wall of the water inlet end cover 310 is also provided with a groove structure corresponding to the air vent 3103, so as to prevent the clothes from adhering to the outer periphery of the air vent 3103 and affecting the air pressure balance between the inner and outer sides of the inner drum.

[0097] In a specific structure, the second recessed area of the first groove 314 extends to the opening end close to the side wall 313, and part of the air vent 3103 is arranged in the second recessed area of the first groove 314. The second groove 315 is arranged on the side wall 313 close to the opening end, and the second groove 315 is arranged between two second recessed areas adjacent to the first groove 314, and another part of the air vent 3103 is arranged in the second groove 315.

[0098] As a preferred embodiment of the present embodiment, the water blocking part 323 is formed by the transition section extending along the outer periphery at the left end and inclined toward the bottom 100, and then continues to extend along the axis of the inner drum, and the extending end surrounds the outside of the bending part 102.

[0099] By setting the water blocking part 323 to have an inclined extension structure, when the washing water enters the air exchange cavity 302 through the overflow hole 3103, most of the washing water will flow along the inclined surface of the water blocking part 323 to the left end away from the drum bottom 100, and finally flow circumferentially around the sleeve joint part 311 to flow back to the inner drum from the overflow hole 3103 in the lower area of the air exchange cavity 302. In this way, the amount of water flowing to the bending part 102 is reduced, further avoiding the washing water from leaking out through the installation hole 101 by passing over the bending part 102.

[0100] In a further aspect, the position where the water blocking part 323 changes the extension direction, i.e. the end of the inclined extension part, is substantially flush with the edge of the overflow hole 3103 close to the drum bottom 100. In this way, the washing water entering the air exchange cavity 302 through the overflow hole 3103 falls on the inclined surface of the water blocking part 323, thereby minimizing the amount of water flowing to the side of the drum bottom 100.

[0101] In a further aspect of the embodiment, the water blocking part 323 has a radially protruding protruding rib 324 in the middle area along the extension direction. By setting the protruding rib 324, the washing water flowing to the side of the drum bottom 100 can also be blocked.

[0102] As a specific structure, the protruding rib 324 is provided at the end of the inclined extension part of the water blocking part 323, further increasing the difficulty of the washing water passing over the protruding rib 324, thereby maximizing the amount of washing water entering the air exchange cavity 302 flowing to the side of the drum bottom 100.

[0103] In a further aspect, the water inlet nozzle 300 described in the embodiment has a sealing structure with the water inlet shaft 400.

[0104] As a specific implementation, a sealing ring 340 is provided between the water inlet shaft 400 and the sleeve joint part 311, which is fitted on the water inlet shaft 400 and located between the clamping groove 401 and the water outlet end of the water inlet shaft 400.

[0105] More specifically, an inner recessed sealing groove 3111 is provided on the inner wall of the sleeve joint part 311, and the sealing ring 340 is pre-installed in the sealing groove 3111. Then the water inlet nozzle 300 is installed as a whole on the water inlet shaft 400, and the sleeve joint part 311 is sleeved into the water outlet end of the water inlet shaft 400. The sealing ring 340 is in interference fit with the water inlet shaft 400, so that the inner wall of the sealing ring 340 is in close contact with the outer peripheral wall of the water inlet shaft 400.

[0106] In the above aspect, by setting the sealing ring 340, the water flow in the water inlet cavity 301 can be prevented from flowing to the right along the gap between the water inlet shaft 400 and the sleeve joint part 311, thereby preventing the problem of leakage from the installation hole 101.

[0107] In a further aspect, the water inlet nozzle 300 is provided with a structure that is in sealing cooperation with the drum bottom 100.

[0108] As a specific implementation, a sealing member 350 is arranged between the open end of the water inlet end cover 310 and the drum bottom 100, so as to prevent washing water from entering the air exchange cavity 302 through the open end of the water inlet end cover 310. It should be noted that the open end of the water inlet end cover 310 is the extended end of the side wall 313 of the water inlet end cover 310.

[0109] In a specific structure, the sealing member 350 is an annular sealing gasket clamped between the drum bottom 100 and the open end of the water inlet end cover 310 to seal the gap therebetween.

[0110] In a preferred aspect, the open end of the water inlet end cover 310 is provided with an inwardly recessed mounting groove 3131, and the side of the sealing member 350 away from the drum bottom 100 is provided with a protruding plug-in portion 351. The plug-in portion 351 is inserted into the mounting groove 3131, and the other side of the sealing member 350 is in sealing cooperation with the drum bottom 100.

[0111] Specifically, the mounting groove 3131 surrounds the open end of the water inlet end cover 310, and the plug-in portion 351 is in interference fit with the mounting groove 3131, which not only ensures the firm connection between the sealing member 350 and the water inlet end cover 310, but also prevents the existence of a gap between the sealing member 350 and the water inlet end cover 310 through which washing water can penetrate.

[0112] More specifically, the side of the sealing member 350 facing the drum bottom 100 is provided with one or more sealing ribs arranged in a circle. During assembly, the sealing member 350 is first fixed to the water inlet end cover 310 of the water inlet nozzle 300 through the plug-in portion 351, and then the water inlet nozzle 300 is installed as a whole. When the water inlet nozzle 300 and the water inlet shaft 400 are installed in place, the sealing ribs are pressed against the drum bottom 100 to achieve a sealing effect.

[0113] In the above aspect, by arranging the sealing member 350 to seal the gap between the water inlet end cover 310 and the drum bottom 100, during the operation of the washing machine, washing water can only enter the air exchange cavity 302 through the air overflow hole 3103, and there is no gap at other positions through which washing water can enter the air exchange cavity 302. In this way, the amount of water entering the air exchange cavity 302 is minimized, and the cooperation of the water blocking portion 323 and the bent portion 102 can prevent water leakage at the installation through hole 101 of the inner drum.

[0114] When the inner drum assembly provided in this embodiment is applied to a washing machine, the water inlet end of the water inlet shaft 400 is connected to an external water source through the washing machine's water inlet system. When the washing machine is filled with water, external tap water enters the water inlet channel 402 of the water inlet shaft 400 through the water inlet system, flows out from the outlet end, enters the water inlet chamber 301 of the water inlet nozzle 300, and is then dispersed into the inner drum through the first water inlet 3101 and the second water inlet 3102. Simultaneously, air in the inner drum enters the ventilation chamber 302 through the vent hole 3103 and can be discharged from the inner drum through the mounting through hole 101 at the center of the drum bottom 100. This maintains a pressure balance between the inner and outer sides of the inner drum during the water inlet process, ensuring that the water flows smoothly into the inner drum without affecting the water inlet process due to increased pressure in the inner drum.

[0115] With the sealing ring 340 and the seal 350 in place, washing water can only enter the ventilation chamber 302 through the overflow hole 3103, ensuring that a large amount of water does not enter the ventilation chamber 302. Combined with the inclined bend 102 extending from the edge of the mounting hole 101, and the water-blocking part 323 forming a semi-enclosed structure around the bend 102 in the ventilation chamber 302, water leakage at the mounting hole 101 can be effectively avoided while ensuring air pressure balance on both sides of the inner drum, thus guaranteeing the washing effect of the washing machine.

[0116] Example 2

[0117] like Figures 1 to 13 As shown, this embodiment is a further limitation of the first embodiment above. The sleeve part 311 is equipped with a limiting member that cooperates with the water inlet shaft 400, and a locking mechanism for controlling the limiting member and the water inlet shaft 400 to maintain or release the limiting state. The water blocking part 323 is provided on the locking mechanism.

[0118] In one specific embodiment, the outer peripheral wall of the water inlet shaft 400 is provided with a recessed groove 401 in the area near the water outlet end. The sleeve part 311 is equipped with a radially movable limiting member. The limiting member can be inserted into the groove 401 and limited to the water inlet shaft 400 by moving radially along the sleeve part 311, or it can be disengaged from the groove 401 to release the limiting state.

[0119] The locking mechanism includes a locking sleeve 320 axially movably fitted onto the sleeve portion 311, and an elastic member 330 whose two ends respectively abut against the locking sleeve 320 and the water inlet cap 310. A water-blocking portion 323 is disposed on the locking sleeve 320, with a locking portion 321 connected to its inner side. Under the elastic force of the elastic member 330, the locking portion 321 is held axially against the limiting member. The locking portion 321 abuts against the limiting member, maintaining the limiting member in the locking state of being engaged in the slot 401. When the locking sleeve 320 moves axially along the sleeve portion 311, causing the locking portion 321 and the limiting member to intersect axially, the limiting member can then disengage from the slot 401, releasing the limiting state.

[0120] More specifically, the water blocking part 323 extends outwardly from the locking part 321 of the locking sleeve 320 by a certain distance, and then extends continuously by a certain angle, forming the water blocking part 323.

[0121] In the above scheme, the locking sleeve 320 and the limiting part cooperate with the clamping groove 401 on the water inlet shaft 400 to form a quick insertion structure of the water inlet nozzle 300 and the water inlet shaft 400. Specifically, when the end of the water inlet shaft 400 is inserted into the sleeve joint part 311, the limiting part can be clamped into the clamping groove 401, and the locking part 321 and the limiting part abut to make the limiting part inoperable, so that the limiting part and the clamping groove 401 form a limiting cooperation, and the water inlet nozzle 300 is firmly connected to the water inlet shaft 400 and cannot fall off. When it is necessary to remove the water inlet nozzle 300, it is only necessary to move the locking sleeve 320 to release the limiting action on the limiting part, and the limiting part can be removed from the clamping groove 401. At this time, the water inlet nozzle 300 can be taken off the water inlet shaft 400 as a whole, which is simple and convenient to operate.

[0122] The water blocking part 323 is formed by using part of the structure of the locking sleeve 320 to prevent the inner cylinder from leaking, which avoids the trouble of setting additional parts and fully utilizes the space of the air exchange cavity 302.

[0123] In a further scheme, the right end of the elastic part 330 abuts against the locking part 321, so that the locking part 321 and the limiting part remain in the abutting state.

[0124] Further, the sleeve joint part 311 has a protruding limiting mechanism on the outer peripheral wall, and the locking sleeve 320 abuts against the limiting mechanism under the elastic force of the elastic part 330, so as to maintain the abutting state of the locking part 321 and the limiting part.

[0125] As a specific embodiment, the sleeve joint part 311 is provided with a ball hole 3115 penetrating in the radial direction, the limiting part is a ball 3116 installed in the ball hole 3115, and the ball 3116 can move in the radial direction in the ball hole 3115. The wall thickness of the sleeve joint part 311 is smaller than the diameter of the ball 3116, so that when the locking part 321 abuts against the ball 3116 outside the sleeve joint part 311, the ball 3116 can protrude from the inner peripheral wall of the sleeve joint part 311 and be clamped into the clamping groove 401.

[0126] In a preferred structure, the diameter of the ball hole 3115 on the inner peripheral wall of the sleeve joint part 311 is smaller than the diameter of the ball 3116, so as to prevent the ball 3116 from being removed from the ball hole 3115 when the water inlet nozzle 300 is taken off.

[0127] More specifically, the sleeve joint part 311 is provided with a plurality of ball holes 3115 spaced apart in the circumferential direction, and each ball hole 3115 is provided with a ball 3116 movable in the radial direction.

[0128] In a further aspect, the sleeve portion 311 is provided with an internally recessed snap spring groove 3112 on the outer peripheral wall thereof, which is arranged close to the extended end (i.e. the right end in the figure) of the sleeve portion 311 and is located to the right of the ball hole 3115. The limiting mechanism is a snap spring 3113 installed in the snap spring groove 3112, which protrudes from the outer peripheral wall of the sleeve portion 311 after being installed in place. Figures 4 to 7

[0129] The water inlet nozzle 300 has the above structure, the ball 3116 is limited in the ball hole 3115 in the axial direction of the sleeve portion 311, and the lock sleeve 320 can move left and right on the sleeve portion 311. When installing the water inlet nozzle 300, the lock sleeve 320 is moved to the left and the elastic member 330 is compressed, so that the locking portion 321 is at least partially staggered with the ball hole 3115 in the axial direction, at this time the ball 3116 can move outward in the radial direction, so that the water inlet shaft 400 can be inserted into the sleeve portion 311. After being installed in place, the lock sleeve 320 is released and moves to the right under the elastic force of the elastic member 330 to reset, the locking portion 321 gradually approaches the ball hole 3115 and pushes the ball 3116 in it to move inward and be clamped into the clamping groove 401, and the lock sleeve 320 stops moving after being stopped by the snap spring 3113.

[0130] At this time, if the water inlet end cover 310 is directly pulled to the left, the ball 3116 cannot move outward because it is stopped by the locking portion 321, and thus it is clamped in the clamping groove 401 on the water inlet shaft 400, the sleeve portion 311 cannot move in the axial direction, and thus the entire water inlet nozzle 300 cannot be directly pulled off, and the connection is firm. The lock sleeve 320 is moved to the left side appropriately, so that the locking portion 321 moves to the left and is staggered with the ball hole 3115, the ball 3116 is no longer limited by the locking portion 321, at this time the water inlet end cover 310 is pulled to the left again, the ball 3116 can be pulled out of the clamping groove 401, and the water inlet nozzle 300 can be taken off from the water inlet shaft 400 as a whole.

[0131] Since the lock sleeve 320 is arranged inside the water inlet end cover 310, in order to move the lock sleeve 320 and thus disassemble and assemble the water inlet nozzle 300, the lock sleeve 320 has an externally protruding or internally recessed disassembly and assembly portion on the surface thereof, a disassembly and assembly tool can be inserted into the air exchange cavity 302 through the air overflow hole 3103, and then the disassembly and assembly tool acts on the disassembly and assembly portion to move the lock sleeve 320 in the axial direction.

[0132] Specifically, in this embodiment, the projection of the air overflow hole 3103 on the central axis of the lock sleeve 320 falls on the water blocking portion 323, so as to ensure the effective blocking effect of the water blocking portion 323 on the water flow. The disassembly and assembly portion is arranged on the outer peripheral wall of the water blocking portion 323, so that the disassembly and assembly tool is more easily acted on the disassembly and assembly portion when being inserted through the air overflow hole 3103.

[0133] ​As a specific structure, the disassembling part is a protruding rib 324 surrounding the water retaining part 323. When disassembling the water inlet nozzle 300, the disassembling tool is inserted into the protruding rib 324 through the gas overflow hole 3103 to the right side of the protruding rib 324, and then the lock sleeve 320 is pushed to the left. The protruding rib 324 can be used for disassembling the water inlet nozzle 300, and can also block the washing water falling on the water retaining part 323 from flowing to the side of the barrel bottom 100.

[0134] In a specific embodiment of the present embodiment, a plurality of gas overflow holes 3103 are arranged on the water inlet end cover 310 in a circumferential direction, and the plurality of gas overflow holes 3103 are not completely the same in an axial direction.

[0135] More specifically, the gas overflow hole 3103 arranged in the second groove 315 is closer to the barrel bottom 100 than the gas overflow hole 3103 arranged in the first groove 314, and the edge of the gas overflow hole 3103 in the second groove 315 is closer to the protruding rib 324. In actual operation, the disassembling tool can be inserted into the protruding rib 324 through the gas overflow hole 3103 in the second groove 315 to push the lock sleeve 320.

[0136] In a preferred structure, the outer peripheral wall of the water retaining part 323 on the side of the protruding rib 324 facing the barrel bottom 100 has a concave-convex alternating structure in the circumferential direction. As a specific embodiment, a plurality of auxiliary positioning grooves 325 are arranged on the outer peripheral wall of the water retaining part 323 on the right side of the protruding rib 324 in a circumferential direction.

[0137] When the operator pushes the lock sleeve 320 with the disassembling tool, the end of the disassembling tool can be inserted into the auxiliary positioning groove 325, and at this time the auxiliary positioning groove 325 can limit the end of the disassembling tool in a certain range in the circumferential direction, avoiding the disassembling tool from slipping greatly along the circumferential direction of the water retaining part 323 when operating the disassembling tool, and affecting the force exerted by the disassembling tool on the lock sleeve 320.

[0138] In a more specific structure, the water retaining part 323 first extends in a radial direction and is inclined towards the barrel bottom 100, then bends by a certain angle and continues to extend towards the barrel bottom 100 in an axial direction, and the protruding rib 324 is arranged at the connection between the inclined extension part and the axial extension part of the water retaining part 323. On the one hand, the distance between this place and the side wall 313 of the water inlet end cover 310 is relatively close, and the disassembling tool is more easily acted on the protruding rib 324 after being inserted from the gas overflow hole 3103. On the other hand, when the protruding rib 324 is arranged at this place, the blocking effect on the washing water flowing to the side of the barrel bottom 100 is better.

[0139] In a further aspect of the embodiment, the locking portion 321 is protruded on the inner circumferential wall of the sleeve 320, and extends towards the barrel bottom 100 to form a stop portion 322 which is spaced from the inner side of the water retaining portion 323, and the inner circumferential wall of the stop portion 322 is spaced from the outer circumferential wall of the sleeve portion 311 to form a clearance. When the locking portion 321 is staggered with the ball hole 3115 in the axial direction by moving the sleeve 320, the stop portion 322 can move to a position opposite to the ball hole 3115, and then when the ball 3116 moves out of the clamping groove 401 in the radial direction, the part of the ball 3116 protruding from the outer circumferential wall of the sleeve portion 311 enters the clearance.

[0140] As a specific embodiment, the inner diameter of the extending end of the stop portion 322 is larger than the inner diameter of the locking portion 321, so as to form the clearance. More specifically, the maximum spacing distance between the inner circumferential wall of the stop portion 322 and the outer circumferential wall of the sleeve portion 311 is smaller than the diameter of the ball 3116.

[0141] When the sleeve 320 is moved to the left to stagger the locking portion 321 with the ball hole 3115 in the axial direction, the stop portion 322 moves to the outside of the ball hole 3115 on the sleeve portion 311 with the movement of the sleeve 320, and can shield the ball 3116. The ball 3116 moves outwardly until it abuts against the inner circumferential wall of the stop portion 322, so as to avoid the ball 3116 from being completely taken out of the ball hole 3115 and then falling off from the gap between the sleeve 320 and the sleeve portion 311.

[0142] In a detailed structure, the inner circumferential wall of the stop portion 322 is inclined to extend from the locking portion 321 and towards the water retaining portion 323. More specifically, the left end of the inner circumferential wall of the stop portion 322 is flush with the right end of the inner circumferential wall of the locking portion 321, and the inner circumferential wall of the stop portion 322 first extends to form a conical surface structure, and then continues to extend in the axial direction for a distance.

[0143] Preferably, the conical surface structure of the stop portion 322 abuts against the stop limit of the clamping spring 3113, so as to limit the limit position of the sleeve 320 moving to the right end. The extending end of the stop portion 322 does not exceed the extending end of the water retaining portion 323 in the axial direction, and preferably has a spacing with the left end of the bending portion 102 in the axial direction, so as to avoid interference with the bending portion 102.

[0144] In a further aspect of the embodiment, the elastic member 330 is a compression spring sleeved on the sleeve portion 311, and the left end of the water retaining portion 323 is connected with an extending portion 326 extending away from the barrel bottom 100, and the extending portion 326 at least partially surrounds the outer circumferential wall of the elastic member 330.

[0145] The outer periphery of the extension 326 at the right end of the elastic member 330 forms a shield, which makes the contact between the elastic member 330 and the lock sleeve 320 more stable when the lock sleeve 320 moves to the left to compress the elastic member 330.

[0146] In a preferred structure, the inner periphery wall of the extension 326 has a plurality of protruding structures 327 distributed along the circumference. Specifically, the left end of the protruding structure 327 is flush with the left end of the extension 326, and the right end is connected to the water retaining portion 323. The protruding height of the protruding structure 327 is less than the protruding height of the inner periphery wall of the locking portion 321 relative to the inner periphery wall of the extension 326, so as to ensure that the right end of the elastic member 330 can be in contact with the locking portion 321.

[0147] The protruding surface of the protruding structure 327 is in contact or close contact with the elastic member 330, which limits the right end of the elastic member 330 in the spacing between the protruding structure 327 and the outer periphery wall of the sleeve connecting portion 311. This not only ensures the stable installation of the elastic member 330, but also reduces the possible contact area between the lock sleeve 320 and the outer periphery of the elastic member 330, avoiding the friction between the elastic member 330 and the lock sleeve 320 causing the lock sleeve 320 to be stuck.

[0148] Further, the maximum outer diameter of the extension 326 is less than or equal to the outer diameter of the left end of the water retaining portion 323, that is, the overall radial dimension of the extension 326 is less than the radial dimension of the left end of the water retaining portion 323. In this way, for the washing water entering the gas exchange cavity 302 through the overflow hole 3103, it is easy to flow along the water retaining portion 323 to the extension 326, and then flow downward along the outer periphery wall of the extension 326 to discharge from the gas exchange cavity 302, which can further reduce the amount of washing water flowing to the right along the water retaining portion 323.

[0149] In a further structure, the sleeve connecting portion 311 is provided with a boss 3114 protruding from the outer periphery wall at the end away from the barrel bottom 100, and the elastic member 330 is in abutment with the boss 3114.

[0150] As a specific embodiment, the boss 3114 is provided with a plurality of bosses spaced along the circumference of the sleeve connecting portion 311.

[0151] In a specific structure, the second water inlet 3102 penetrates the sleeve connecting portion 311 along the radial direction, thereby communicating with the water inlet cavity 301. The inner wall of the water inlet end cover 310 has a curved protrusion corresponding to the second water inlet 3102 at the region connected to the sleeve connecting portion 311, so that the inner wall of the water inlet end cover 310 at the left end of the sleeve connecting portion 311 has a concave-convex alternating structure along the circumference.

[0152] By setting the boss 3114, on one hand, a circumferentially flush surface can be provided at the left end of the sleeve joint 311 as the abutting surface of the left end of the elastic member 330. On the other hand, the connection of the left end of the sleeve joint 311 and the water inlet end cover 310 can also be structurally reinforced.

[0153] In the embodiment, the water inlet nozzle 300 is formed by the ball 3116, the lock sleeve 320, and the elastic member 330 into a quick plug structure. Moving the lock sleeve 320 to the left can install the water inlet nozzle 300 as a whole to the end of the water inlet shaft 400. After the lock sleeve 320 is loosened, the quick plug structure can be self-locked with the water inlet shaft 400, so that the water inlet nozzle 300 cannot be directly pulled off, and the installation is firm. When the water inlet nozzle 300 needs to be removed, the lock sleeve 320 is moved to the left to unlock the quick plug structure, and then the water inlet nozzle 300 is pulled to the left to be removed as a whole. The installation and disassembly of the water inlet nozzle 300 are simple and easy to operate, and the maintenance and replacement of parts are convenient. At the same time, the water inlet nozzle 300 is firmly installed and will not easily fall off, and the structure is more reliable.

[0154] The water blocking part 323 is formed by part of the structure of the lock sleeve 320, without the need to set additional parts. At the same time, the protruding ribs 324 set on the outer peripheral wall of the water blocking part 323 can not only enhance the role of blocking the washing water flowing along the water blocking part 323 to the side of the barrel bottom 100, but also can be used as a disassembly part for moving the lock sleeve 320 when disassembling the water inlet nozzle 300, and the structure is more compact.

[0155] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above-mentioned technical content without departing from the scope of the technical solution of the present application, and any simple modification, equivalent change and modification of the above-mentioned embodiments based on the technical essence of the present application are still within the scope of the present application.

Claims

1. An inner cylinder assembly, characterized in that, The bottom of the cylinder (100) is provided with a mounting through hole (101), and a water inlet shaft (400) is inserted through the mounting through hole (101) with a gap. A water inlet nozzle (300) is installed at the water outlet end of the water inlet shaft (400). The mounting through hole (101) has a bent portion (102); The water inlet nozzle (300) is provided with a water-blocking part (323) that at least partially surrounds the outside of the bend (102); The bent portion (102) extends obliquely toward the water-blocking portion (323).

2. The inner cylinder assembly according to claim 1, characterized in that, One end of the water-blocking part (323) is assembled with the water inlet end cap (310) of the water inlet nozzle (300), and the other end is spaced around the outside of the bend (102); there is a transition section between the two ends of the water-blocking part (323) that extends obliquely toward the inner wall of the water inlet end cap (310). Preferably, the water-blocking part (323) extends radially from one end that is assembled with the water inlet end cap (310) and is inclined toward the bottom of the cylinder (100), and then bends at a certain angle to continue extending toward the bottom of the cylinder (100).

3. The inner cylinder assembly according to claim 2, characterized in that, The water-blocking part (323) has a radially protruding rib (324) in the middle region along the extension direction; Preferably, the rib (324) is located at the position where the water-blocking part (323) changes its extension direction.

4. The inner cylinder assembly according to claim 3, characterized in that, On the side of the rib (324) facing the bottom of the cylinder (100), the outer peripheral wall of the water-blocking part (323) has an alternating concave-convex structure along the circumferential direction.

5. The inner cylinder assembly according to claim 2, characterized in that, The position where the water-blocking part (323) changes its extension direction is basically flush with the edge of the overflow hole (3103) on the water inlet end cap (310) near the bottom (100) of the cylinder along the axial direction of the inner cylinder.

6. The inner cylinder assembly according to claim 2, characterized in that, The water-blocking part (323) is connected to an extension (326) surrounding the water inlet shaft (400) on the side opposite to the bottom of the cylinder (100); The maximum outer diameter of the extension (326) is less than or equal to the outer diameter at the point where the water-blocking part (323) connects with the extension (326).

7. The inner cylinder assembly according to any one of claims 2-6, characterized in that, The water inlet end cap (310) has a sleeve (311) sleeved on the water outlet end of the water inlet shaft (400), and a limiting member that is matched with the limiting member of the water inlet shaft (400) is installed on it; The water-blocking part (323) is fitted onto the sleeve part (311), and the inner side of the water-blocking part (323) is connected to the locking part (321) that abuts against the limiting member; the locking part (321) extends toward the bottom of the cylinder (100) on the side facing the bottom of the cylinder (100) to form a stop part (322) spaced apart on the inner side of the water-blocking part (323), and the stop part and the sleeve part (311) are spaced apart in the radial direction; Preferably, the inner peripheral wall of the stop (322) extends axially from the locking part (321) along the inner cylinder and is inclined toward the water-blocking part (323).

8. The inner cylinder assembly according to claim 7, characterized in that, The water-blocking part (323) is connected to an extension (326) extending away from the bottom of the cylinder (100), the extension (326) at least partially surrounding the elastic member (330) fitted on the sleeve part (311); The inner peripheral wall of the extension (326) has a plurality of protrusions (327) spaced apart along the circumferential direction; Preferably, one end of the elastic element (330) abuts against a boss (3114) protruding from the outer peripheral wall of the sleeve portion (311), the boss (3114) being disposed in the end region of the sleeve portion (311) away from the bottom of the cylinder (100); More preferably, the boss (3114) is provided in multiple circumferentially spaced along the sleeve portion (311).

9. The inner cylinder assembly according to any one of claims 1-6, characterized in that, The tripod (200) of the inner cylinder assembly is spaced apart from the bottom of the cylinder (100) and has a protrusion (201) surrounding the water inlet shaft (400); The protrusion (201) is inserted into the mounting through hole (101) and is provided with a radial gap from the mounting through hole (101); Preferably, the protruding end of the protrusion (201) is substantially flush with the extended end of the bend (102).

10. A washing machine, characterized in that, It has an inner cylinder assembly as described in any one of claims 1-9.

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