Inner barrel assembly and washing equipment

Abstract

The invention discloses an inner barrel assembly and washing equipment, the inner barrel assembly comprises an inner barrel, the barrel bottom of the inner barrel is provided with an annular cavity capable of storing water, the annular cavity and the inner barrel are coaxial, the upper part of the top wall or the peripheral wall of the annular cavity is provided with a first through hole, and the annular cavity is communicated with the outside for water inlet and outlet. The annular cavity is provided with the first through hole, washing water in the annular cavity plays a role in balancing rotation of the inner barrel when the dewatering stage is at a low speed, and the washing water is discharged through the first through hole when the dewatering stage is at a high speed, so that the weight of the inner barrel is reduced, and the working load for driving the inner barrel to rotate at a high speed is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of washing machines, and in particular relates to an inner barrel assembly and a washing device. Background Art

[0002] The balance ring of a pulsator washing machine is generally set at the upper part of the inner barrel to balance the unbalanced load generated by the washing machine during dehydration. This balance ring has a good balancing effect on the unbalanced load on the upper part of the inner barrel, but it is difficult to balance the lower part of the inner barrel. In order to effectively resist the unbalanced load on the lower part of the inner barrel, a lower balance ring is also set at the bottom of the inner barrel of the washing machine on the market.

[0003] Chinese patent application number 201621308123.2 discloses an inner barrel bottom balancing ring structure, including an inner barrel bottom and an inner barrel bottom cover installed at the bottom of the inner barrel bottom. The inner barrel bottom and the inner barrel bottom cover are sealed and form a closed annular chamber between the two. The annular chamber is filled with a balancing liquid. In the annular chamber, the inner barrel bottom and the inner barrel bottom cover are provided with staggered baffles, and a flow channel for the balancing liquid is formed between adjacent baffles.

[0004] In the above solution, although the balancing effect of the lower part of the inner barrel of the washing machine can be improved, the annular chamber of the balance ring at the bottom of the inner barrel is always filled with balancing liquid, which increases the workload of the motor driving the inner barrel to dehydrate and rotate, affecting the service life of the motor.

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

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art. The first purpose of the present invention is to provide an inner barrel assembly, in which an annular cavity is arranged on the bottom of the inner barrel of the inner barrel assembly. When the inner barrel is in the low-speed dehydration stage, the washing water in the annular cavity plays a role in balancing the lower part of the inner barrel, thereby assisting the overall balance of the inner barrel. When the inner barrel is in the high-speed dehydration stage, the washing water is discharged through the first through hole, reducing the weight of the inner barrel and reducing the workload of the motor driving the inner barrel to rotate at high speed.

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

[0008] An inner barrel assembly includes an inner barrel, wherein an annular cavity capable of storing water is provided at the bottom of the inner barrel, the annular cavity is coaxial with the inner barrel, and a first through hole is provided on the top wall or the upper part of the peripheral wall of the annular cavity, connecting the annular cavity with the outside for the inlet and outlet of water.

[0009] Preferably, the inner barrel assembly further comprises an inner barrel bottom cover installed below the inner barrel bottom, and an annular cavity is formed between the inner barrel bottom and the inner barrel bottom cover;

[0010] The annular cavity has an outer circumferential wall and an inner circumferential wall. The first through hole is opened at the upper part of the outer circumferential wall close to the bottom of the inner barrel or at the bottom of the inner barrel close to the outer circumferential wall.

[0011] Preferably, the diameter of the outer circumferential wall is not greater than the diameter of the bottom of the inner barrel.

[0012] Preferably, the outer circumferential wall extends obliquely from the bottom cover of the inner barrel toward the bottom of the inner barrel, and the distance from the central axis of the inner barrel gradually increases.

[0013] Preferably, the inner barrel bottom cover is provided with an annular rib, which is circumferentially arranged between the outer circumferential wall and the inner circumferential wall, and / or the outer wall of the inner barrel bottom is provided with an annular rib protruding downward;

[0014] The annular ribs divide the annular cavity into two chambers, the outer ring and the inner ring, including:

[0015] A first annular cavity is formed between the outer circumferential wall and the annular rib;

[0016] a second annular cavity, formed between the annular rib and the inner circumferential wall;

[0017] The first through hole is provided at the upper portion of the outer circumferential wall near the bottom of the inner barrel, connecting the first annular cavity with the outside of the inner barrel;

[0018] A plurality of second through holes are provided on the annular rib, and the second through holes are used to connect the first annular cavity and the second annular cavity.

[0019] Preferably, the inner circumferential wall, the annular rib and the outer circumferential wall all have a certain vertical height, and the vertical heights of the three gradually increase from the inside to the outside or are the same.

[0020] Preferably, the projections of the second through holes on the outer circumferential wall are staggered with the first through holes.

[0021] Preferably, a plurality of baffles are distributed circumferentially in the first annular cavity and the second annular cavity, and each baffle is provided with a gap through which the washing water can flow circumferentially.

[0022] Preferably, the inner barrel bottom and the inner barrel bottom cover are connected together by welding.

[0023] The second object of the present invention is to provide a washing device applied to the above-mentioned inner barrel assembly, comprising an outer barrel and a driving part, wherein the inner barrel assembly is rotatably arranged in the outer barrel, and the driving part is installed under the outer barrel for driving the inner barrel assembly to rotate.

[0024] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0025] When the capacity of the inner barrel assembly is large, the existing balance ring that is only provided on the upper part of the inner barrel assembly cannot quickly achieve the effect of correcting the balance, and may require more times of clothing distribution, wasting time and electricity, or even failing to achieve clothing distribution and eventually the program stops running. Although the balance effect can be achieved by increasing the number or volume of balance rings on the upper part of the inner barrel assembly, the total weight of the inner barrel assembly is also increased, so it is necessary to increase the strength of the shock-absorbing springs of the outer barrel and the inner barrel assembly. The present invention provides a water-filled annular cavity under the inner barrel assembly, and the washing water in the annular cavity can be discharged during the dehydration stage. When the inner barrel is in the high-speed dehydration stage, the high-speed rotation dehydration stage can reduce the total weight of the inner barrel assembly. The requirements for the shock-absorbing spring of the inner barrel assembly are not high, and the total weight of the washing equipment is not increased too much, which is convenient for carrying.

[0026] In addition, the washing water in the annular cavity can be discharged through the first through hole, and the total weight of the inner barrel assembly is reduced. Compared with the arrangement of multiple balancing rings on the upper part and the distribution of balancing liquid in the balancing rings, which increases the total weight of the inner barrel assembly, the collision strength between the inner barrel assembly and the outer barrel during transportation will also be reduced, thereby increasing the service life of the inner barrel assembly.

[0027] By setting an annular cavity under the inner barrel assembly, the annular cavity has a first through hole. When the inner barrel is in the low-speed dehydration stage, the washing water in the annular cavity serves to balance the lower part of the inner barrel. When the inner barrel is in the high-speed dehydration stage, the washing water is discharged through the first through hole, reducing the weight of the inner barrel and reducing the workload of the motor driving the inner barrel to rotate at high speed.

[0028] The annular chamber has an outer circumferential wall and an inner circumferential wall. The first through hole is opened at the upper part of the outer circumferential wall near the bottom of the inner barrel or is arranged at the bottom of the inner barrel near the outer circumferential wall. The diameter of the outer circumferential wall is not larger than the diameter of the bottom of the inner barrel. During the dehydration process, all the water in the annular chamber can be discharged to avoid water accumulation in the annular cavity and the breeding of bacteria, which will affect the next washing effect.

[0029] The outer circumferential wall extends obliquely from the bottom cover of the inner barrel toward the bottom of the inner barrel, and the distance from the central axis of the inner barrel gradually increases. Due to the inclined setting of the outer circumferential wall, the washing water can be easily thrown out of the annular cavity, thereby improving the drainage efficiency.

[0030] The annular cavity includes a first annular cavity and a second annular cavity. A second through hole is opened on the annular rib for connecting the first annular cavity and the second annular cavity. A first through hole is opened on the outer circumferential wall of the first annular cavity. The projection of the second through hole on the outer circumferential wall is staggered with the first through hole. The purpose of designing the first through hole and the second through hole in this way is that the washing water can prolong the time of balancing the lower part of the inner barrel during the dehydration process, thereby enhancing the balancing effect of the lower part of the inner barrel.

[0031] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0033] Figure 1 This is a schematic structural diagram of the inner barrel bottom and inner barrel bottom cover of the washing equipment of the present invention;

[0034] Figure 2 yes Figure 1 Cross-sectional view along CC section;

[0035] Figure 3 It is a schematic structural diagram of the annular cavity of the washing equipment of the present invention;

[0036] Figure 4 Schematic diagram of the washing device of the present invention.

[0037] In the figure: 1. Bottom of inner barrel; 2. Bottom cover of inner barrel; 3. Annular cavity; 31. First through hole; 32. Baffle; 321. Notch; 33. Outer circumferential wall; 34. Inner circumferential wall; 35. Annular rib; 36. First annular cavity; 37. Second annular cavity; 41. Shell; 42. Outer barrel; 43. Inner barrel; 44. Impeller; 45. Center shaft; 46. Drive unit.

[0038] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0041] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0042] like Figures 1 to 4 As shown, the present invention provides an inner barrel assembly, including an inner barrel 43, wherein the bottom 1 of the inner barrel is provided with an annular cavity 3 capable of storing water, the annular cavity 3 is coaxial with the inner barrel 43, and the top wall or the upper part of the peripheral wall of the annular cavity 3 is provided with a first through hole 31, which connects the annular cavity 3 with the outside for the entry and exit of water.

[0043] By setting the annular cavity 3, the annular cavity 3 has a first through hole 31. During the washing stage, since the drainage hole on the barrel body of the inner barrel 43 is connected to the outside, the washing water outside the inner barrel 43 enters the annular cavity 3 through the first through hole 31. When the inner barrel 43 is in the low-speed dehydration stage, the washing water in the annular cavity plays a role in balancing the lower part of the inner barrel 43. When the inner barrel 43 is in the high-speed dehydration stage, the washing water is discharged through the first through hole 31, reducing the weight of the inner barrel 43 and reducing the workload of the motor driving the inner barrel to rotate at high speed.

[0044] When the capacity of the inner barrel assembly is large, for example, when the capacity of the inner barrel 43 is 10 kg or larger, the existing balance ring provided only on the upper part of the inner barrel assembly cannot quickly achieve the effect of correcting the balance, and may require more times of clothing distribution, wasting time and electricity, or even failing to achieve clothing distribution and the final program stops running. Although the balance effect can be achieved by increasing the number or volume of balance rings on the upper part of the inner barrel assembly, the total weight of the inner barrel assembly is also increased. Therefore, it is also necessary to increase the strength of the shock-absorbing springs of the outer barrel 42 and the inner barrel assembly. The present invention provides a water-filled annular cavity 3 under the inner barrel assembly. The washing water in the annular cavity 3 can be discharged during the dehydration stage. The high-speed rotation dehydration stage can reduce the total weight of the inner barrel assembly. The requirements for the shock-absorbing spring of the inner barrel assembly are not high, and the total weight of the washing equipment is not increased too much, which is convenient for carrying.

[0045] In addition, the washing water in the annular cavity 3 can be discharged through the first through hole 31, and the total weight of the inner barrel assembly is reduced. Compared with the arrangement of multiple balancing rings on the upper part, in which the balancing liquid is distributed inside the balancing rings, which increases the total weight of the inner barrel assembly, the collision strength between the inner barrel assembly and the outer barrel 42 during transportation will also be reduced, thereby increasing the service life of the inner barrel assembly.

[0046] like Figure 4As shown, the present invention also provides a washing device, including a shell 41, a base assembled on the shell 41 and an outer barrel 42 arranged in the shell 41. The shell 41 constitutes the surrounding appearance of the washing device. The base is installed below the shell 41 to support the shell 41. The outer barrel 42 is provided with a drain pipe connected to the outside of the washing device. The drain pipe is used to discharge the washing water in the dehydration stage to the outside of the washing device.

[0047] The washing device also includes an inner barrel assembly, which is rotatably disposed in the outer barrel 42; a pulsator 44, which is rotatably mounted in the inner barrel assembly, or can also be integrally arranged with the inner barrel assembly; a driving unit 46, which is mounted below the outer barrel 42 and drives the inner barrel assembly and the pulsator 44 to rotate separately or together through the central shaft 45.

[0048] The washing device can be a conventional washing machine, i.e., a plurality of drainage holes are evenly distributed on the circumferential wall of the inner tub 43. During the washing phase, washing water enters the inner tub 43 and between the inner tub 43 and the outer tub 42. The washing water between the inner and outer tubs enters the annular cavity 3 through a first through hole 31, which is preferably provided at the upper portion of the outer circumferential wall 33 near the bottom 1 of the inner tub. During the dehydration phase, the washing water in the annular cavity 3 is discharged between the inner and outer tubs through the first through hole 31 and then discharged to the outside of the washing machine through the drain pipe of the outer tub 42. Of course, in a conventional washing machine, the first through hole 31 can also be provided on the top wall of the annular cavity 3 to connect the annular cavity 3 with the internal chamber of the inner tub 43.

[0049] The washing device can also be a hole-free inner barrel washing machine, that is, the inner barrel 43 can hold water, and a plurality of drainage holes are only arranged circumferentially on the upper part of the peripheral wall of the inner barrel 43, near the open end of the inner barrel 43. During the washing stage, the washing water enters the inner barrel 43, and the washing water inside the inner barrel 43 enters the annular cavity 3 through the first through hole 31 provided at the bottom of the inner barrel 1 near the outer circumferential wall 33. During the dehydration stage, the rotation speed of the inner barrel 43 increases, and the centrifugal force generated by the high-speed rotation is utilized. The washing water in the annular cavity 3 climbs upward along the outer circumferential wall 33 and is discharged into the inner barrel 43 through the first through hole 31. It continues to rise along the peripheral wall of the inner barrel 43 in the inner barrel 43, and is discharged from the inner barrel 43 through the drainage holes arranged near the open end of the inner barrel 43. After being collected by the outer barrel 42, it is discharged to the outside of the washing machine through the drain pipe at the bottom of the outer barrel 42.

[0050] The annular cavity 3 of the present invention can be arranged inside the inner barrel 43 or outside the inner barrel 43 .

[0051] Specifically, the inner barrel assembly also includes an inner barrel bottom cover 2. As an embodiment of the present invention, the inner barrel bottom cover 2 is arranged inside the inner barrel 43, and is installed upside down above the inner barrel bottom 1, cooperating with the inner barrel bottom 1 to form an annular cavity 3. The first through hole 31 is provided on the inner barrel bottom cover 2 above the inner barrel bottom 1. The washing water enters the annular cavity 3 through the first through hole 31, which is suitable for the above-mentioned holeless inner barrel washing machine.

[0052] As another embodiment of the present invention, a liquid storage box is arranged below the bottom 1 of the inner barrel, and the liquid storage box includes a bottom wall, an inner circumferential wall, an outer circumferential wall and a top wall. The bottom wall, the inner circumferential wall, the outer circumferential wall and the top wall form an annular cavity 3. A first through hole 31 is provided on the top wall of the liquid storage box near the outer circumferential wall 33, and a third through hole matching the first through hole 31 is provided on the bottom 1 of the inner barrel, and the annular cavity 3 and the inner barrel 43 are connected through the third through hole and the first through hole 31, which is suitable for a holeless inner barrel washing machine; if a first through hole 31 is provided on the upper part of the outer circumferential wall of the liquid storage box near the bottom 1 of the inner barrel, it is suitable for an ordinary washing machine.

[0053] As an alternative to the above embodiment, the difference from the above embodiment is that the liquid storage box is arranged inside the inner barrel 43, and a first through hole 31 is opened on the top wall of the liquid storage box near the outer circumferential wall 33. The annular cavity 3 and the inner barrel 43 are connected through the first through hole 31, which is suitable for a holeless inner barrel washing machine.

[0054] As another embodiment of the present invention, an inner barrel bottom cover 2 is provided below the inner barrel bottom 1, and the inner barrel bottom cover 2 cooperates with the inner barrel bottom 1 to form an annular cavity 3, and the annular cavity 3 has an outer circumferential wall 33 and an inner circumferential wall 34. A first through hole 31 is provided at the upper part of the outer circumferential wall 33 near the inner barrel bottom 1 or is provided at the inner barrel bottom 1 near the outer circumferential wall 33. The annular cavity 3 and the inner barrel 43 are connected through the first through hole 31, which is only suitable for ordinary washing machines.

[0055] Preferably, the diameter of the outer circumferential wall 33 of the annular cavity 3 is not larger than the diameter of the inner barrel bottom 1. The purpose is that during the dehydration process of the inner barrel assembly, all the water in the annular cavity 3 can be discharged to avoid water accumulation inside the annular cavity 3, which can prevent the breeding of bacteria and affect the next washing effect.

[0056] Furthermore, in order to prevent tiny lint and impurities in the clothes from entering the annular cavity 3 during the washing process, the outward end of the first through hole 31 of the present invention protrudes from the top wall or the outer surface of the peripheral wall of the annular cavity 3.

[0057] Preferably, the outer circumferential wall 33 extends obliquely from the inner barrel bottom cover 2 toward the inner barrel bottom 1, and the distance from the inner barrel center axis 45 gradually increases. Since the outer circumferential wall 33 is inclined, a smaller centrifugal force is required to drain all the washing water, so that the washing water can be easily discharged, thereby improving the drainage efficiency.

[0058] Preferably, the inner barrel bottom cover 2 is provided with an annular rib 35, which is circumferentially arranged between the outer circumferential wall 33 and the inner circumferential wall 34, and / or the outer wall of the inner barrel bottom 1 is protruding downward and provided with an annular rib 35;

[0059] The annular rib 35 divides the annular cavity 3 into two chambers, an outer ring and an inner ring, including a first annular cavity 36 and a second annular cavity 37 .

[0060] A first annular cavity 36 is formed between the outer circumferential wall 33 and the annular rib 35 , and a second annular cavity 37 is formed between the annular rib 35 and the inner circumferential wall 34 ;

[0061] The first through hole 31 is provided at the upper portion of the outer circumferential wall 33 near the bottom 1 of the inner barrel, connecting the first annular cavity 36 with the outside of the inner barrel 43 , and the incoming water enters the first annular cavity 36 through the first through hole 31 .

[0062] A second through hole is opened on the annular rib 35, and the second through hole connects the first annular cavity 36 and the second annular cavity 37. After the washing water fills the first annular cavity 36, it enters the second annular cavity 37 through the second through hole, ensuring that the water entering the first annular cavity 36 and the second annular cavity 37 plays a role in balancing the lower part of the inner barrel assembly.

[0063] Specifically, the second through hole is also opened at the upper portion of the annular rib 35 near the bottom 1 of the inner barrel, so as to facilitate drainage into the first annular cavity 36 during the dehydration process.

[0064] In order to improve the efficiency of water intake and drainage, a plurality of first through holes 31 are evenly arranged along the outer circumferential wall 33 , and similarly, a plurality of second through holes are evenly arranged along the annular rib 35 .

[0065] Preferably, the inner circumferential wall 34 , the annular rib 35 and the outer circumferential wall 33 all have a certain vertical height, and the vertical heights of the three gradually increase from the inside to the outside or are the same.

[0066] Preferably, the projection of the second through hole on the outer circumferential wall 33 is staggered with the first through hole 31, that is, if the outer circumferential wall 33 and the annular rib 35 are unfolded and viewed, the direction from one side of the outer circumferential wall 33 to the other side is defined as the first direction, and similarly, the annular rib 35 is also viewed along the first direction. The projection of the second through hole on the outer circumferential wall 33 is staggered with the first through hole 31, ensuring that the washing water in the first annular cavity 36 and the second annular cavity 37 can extend the time to balance the lower part of the inner barrel during the dehydration process, thereby enhancing the balancing effect of the lower part of the inner barrel and improving the user experience.

[0067] Since the present invention uses washing water to enter the annular cavity 3 as a balancing liquid, although it will be discharged during the high-speed dehydration stage, and the rinse water of the final rinse can also clean the inner wall of the annular cavity 3, there is still a possibility that washing water stains will accumulate and adhere to the inner wall of the annular cavity 3 after a long period of use. Therefore, the present invention provides multiple cleaning balls in the annular cavity 3. The cleaning balls can rotate with the water flow, collide and rub with each other to clean the inner wall of the annular cavity 3. In order to prevent the cleaning balls from being thrown out of the first through hole 31 with the water flow, the diameter of the cleaning balls is designed to be larger than the diameter of the first through hole 31.

[0068] Preferably, a plurality of cleaning balls are placed in the first annular cavity 36 and the second annular cavity 37, so that the inner circumferential wall 34, the annular rib 35, the outer circumferential wall 33 and part of the inner barrel bottom cover 2 can be cleaned during the washing process.

[0069] Preferably, a plurality of baffles 32 are distributed circumferentially within the first annular cavity 36 and the second annular cavity 37 to form a blocking effect and better balance the cavity.

[0070] Specifically, the baffles in different cavities are evenly and spaced apart in their respective cavities.

[0071] Each baffle 32 is provided with a notch 321 to facilitate the circumferential flow of washing water. Preferably, the notch 321 is provided at the same position of each baffle 32 .

[0072] Preferably, the inner barrel bottom 1 and the inner barrel bottom cover 2 are connected together by welding to form a closed annular cavity 3.

[0073] Alternatively, the inner barrel bottom 1 and the inner barrel bottom cover 2 may be connected together by screws.

[0074] The working process is explained by taking the annular cavity 3 formed between the bottom 1 of the inner barrel and the bottom cover 2 of the inner barrel as an example. When the washing equipment is in the washing stage, water is introduced into the inner barrel assembly, and the washing water enters the annular cavity 3 through the first through hole 31 opened in the annular cavity 3. When the washing stage is over and the water is drained and enters the dehydration stage, when the inner barrel is in the low-speed dehydration stage, part of the washing water is discharged between the inner and outer barrels 42 through the first through hole 31, and is discharged to the outside of the washing equipment through the drain pipe of the outer barrel 42. The other part of the washing water flows in the annular cavity 3 to maintain the balance of the rotation of the inner barrel 43. When the inner barrel is in the high-speed dehydration stage, all the washing water in the annular cavity 3 is discharged into the outer barrel 42 and is discharged to the outside of the washing equipment through the drain pipe below the outer barrel 42.

[0075] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments of equivalent changes using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. The implementation schemes in the above-mentioned embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above-mentioned embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. An inner barrel assembly, comprising an inner barrel (43), characterized in that: An annular cavity (3) capable of storing water is provided at the bottom of the inner barrel (1). The annular cavity (3) is coaxial with the inner barrel (43). A first through hole (31) is provided on the top wall or the upper part of the peripheral wall of the annular cavity (3) to connect the annular cavity (3) with the outside for water in and out.

2. The inner barrel assembly according to claim 1, characterized in that: It also includes an inner barrel bottom cover (2) installed below the inner barrel bottom (1), and an annular cavity (3) is formed between the inner barrel bottom (1) and the inner barrel bottom cover (2); The annular cavity (3) has an outer circumferential wall (33) and an inner circumferential wall (34), and the first through hole (31) is opened at the upper part of the outer circumferential wall (33) close to the bottom (1) of the inner barrel or at the bottom (1) of the inner barrel close to the outer circumferential wall (33).

3. The inner barrel assembly according to claim 2, characterized in that: The diameter of the outer circumferential wall (33) is not greater than the diameter of the inner barrel bottom (1).

4. The inner barrel assembly according to claim 2 or 3, characterized in that: The outer circumferential wall (33) extends obliquely from the inner barrel bottom cover (2) toward the inner barrel bottom (1), and the distance from the inner barrel central axis (45) gradually increases.

5. The inner barrel assembly according to claim 2, characterized in that: The inner barrel bottom cover (2) is provided with an annular rib (35), which is circumferentially arranged between the outer circumferential wall (33) and the inner circumferential wall (34), and / or the outer wall of the inner barrel bottom (1) is protruding downward and provided with an annular rib (35); The annular rib (35) divides the annular cavity (3) into two chambers, an outer ring and an inner ring, including: A first annular cavity (36) is formed between the outer circumferential wall (33) and the annular rib (35); A second annular cavity (37) is formed between the annular rib (35) and the inner circumferential wall (34); The first through hole (31) is provided at the upper portion of the outer circumferential wall (33) near the bottom (1) of the inner barrel, and connects the first annular cavity (36) with the outside of the inner barrel (43); A plurality of second through holes are provided on the annular rib (35), and the second through holes are used to connect the first annular cavity (36) and the second annular cavity (37).

6. The inner barrel assembly according to claim 5, characterized in that: The inner circumferential wall (34), the annular rib (35) and the outer circumferential wall (33) all have a certain vertical height, and the vertical heights of the three gradually increase from the inside to the outside or are the same.

7. The inner barrel assembly according to claim 5, characterized in that: The projections of the second through holes on the outer circumferential wall (33) are staggered with the first through holes (31).

8. The inner barrel assembly according to claim 5, characterized in that: A plurality of baffles (32) are distributed circumferentially within the first annular cavity (36) and the second annular cavity (37), and each baffle (32) is provided with a notch (321) through which washing water can flow circumferentially.

9. The inner barrel assembly according to claim 2, characterized in that: The inner barrel bottom (1) and the inner barrel bottom cover (2) are connected together by welding.

10. A washing device having an inner tub assembly according to any one of claims 1 to 9, characterized in that: The invention comprises an outer barrel (42) and a driving part (46), wherein the inner barrel assembly is rotatably arranged in the outer barrel (42), and the driving part (46) is installed below the outer barrel (42) and is used for driving the inner barrel assembly to rotate.

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