CN218026783U - Washing machine - Google Patents

Abstract

The utility model relates to a washing machine, this washing machine includes: an outer cylinder; the inner cylinder is rotatably arranged in the outer cylinder, and a washing cavity is arranged in the inner cylinder; the lifting ribs are arranged on the inner wall of the inner barrel and extend along the front and back directions of the washing cavity; an arc groove is formed on the side wall surface of the lifting rib, is formed in the middle area of the front end and the rear end of the lifting rib and is positioned in the middle area of the washing cavity; the width of the middle region of the lifting rib is smaller than the width of the front end and the rear end of the lifting rib. Utilize the arc recess on the lateral wall face of promotion muscle, the middle zone width at cooperation arc recess place is less than the width at both ends around the promotion muscle, and then makes the clothing can be at promotion in-process progressively near arc recess place region, and then progressively guides the clothing to the middle zone of washing chamber, prevents that the clothing from concentrating on the front side or the rear side of inner tube, is favorable to reducing the wearing and tearing of clothing, reduces the vibration of inner tube, and the noise reduction, improve washing machine's wholeness ability.

Description

Washing machine

Technical Field

The utility model relates to the technical field of household appliances, in particular to washing machine.

Background

With the continuous improvement of living standard of people, the washing machine has become an essential household appliance product in the family life. Washing machines are generally classified into drum washing machines and pulsator washing machines. The washing principle of the drum washing machine is as follows: the inner drum rotates to drive the clothes to be lifted to a certain height and then the clothes are thrown off, so that the clothes are cleaned. The main part for realizing the lifting of the clothes is a lifting rib.

At present, in a related drum washing machine, a lifting rib structure is generally a straight structure penetrating through the front and back of an inner drum, and lifting ribs can lift clothes after contacting the clothes, but in the washing machine with the structural scheme, the clothes are easily concentrated on the front side or the back side of the inner drum during washing of the clothes, so that the clothes rub against the front part or the back part of the inner drum, the clothes are abraded, the clothes are concentrated on the front side or the back side of the inner drum, the stress is unbalanced, the inner drum vibrates, and the washing and dewatering noise is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a washing machine to optimize washing machine's among the correlation technique promotion muscle structure, promote washing machine's performance.

In order to solve the technical problem, the utility model adopts the following technical scheme:

according to an aspect of the present invention, the utility model provides a washing machine, this washing machine includes: an outer cylinder; the inner cylinder is rotatably arranged in the outer cylinder, and a washing cavity is formed in the inner cylinder; the lifting ribs are arranged in the washing cavity and on the inner wall of the inner barrel, and the lifting ribs extend along the front and back directions of the washing cavity; the side wall surface of the lifting rib is provided with an arc-shaped groove, and the arc-shaped groove is formed in the middle area of the front end and the rear end of the lifting rib and is positioned in the middle area of the washing cavity; and the width of the middle area of the lifting rib is smaller than the width of the front end and the width of the rear end of the lifting rib.

In some embodiments of this application, be equipped with two on the promotion muscle the arc recess, two the arc recess is located respectively on two relative lateral wall faces of promotion muscle, and two the arc recess is sunken to the orientation that is close to each other and is formed.

In some embodiments of this application, two on the promotion muscle the arc recess is mirror symmetry setting.

In some embodiments of the present application, the sidewall surfaces of the lifting rib include a front straight region, a rear straight region, and an arc-shaped concave region; the front straight area is positioned at the front end of the lifting rib and is of a plane structure; the rear straight area is positioned at the rear end of the lifting rib, and is of a planar structure, and the arc-shaped concave area is formed between the front straight area and the rear straight area; the arc-shaped groove is formed in the arc-shaped concave area.

In some embodiments of the present application, an end surface of the lifting rib, which is attached to the inner wall of the inner cylinder, is a bottom end surface, and an end surface of the lifting rib, which faces the washing chamber, is a top end surface; the width of the bottom end face of the lifting rib is larger than that of a corresponding area of the top end face of the lifting rib, and the front straight area and the rear straight area are arranged in a mode that the edge of the bottom end face extends towards the corresponding edge of the top end face in an inclined mode.

In some embodiments of the present application, the top end surface of the lifting rib is a flat surface, and the top end surface of the lifting rib comprises a front plane area, a middle plane area and a rear plane area which are sequentially arranged from front to back; the front plane area is positioned at the front end of the lifting rib, and the front straight area is arranged on the side wall of the area where the front plane area is positioned; the rear flat area is positioned at the rear end of the lifting rib and is arranged on the side wall of the area where the rear flat area is positioned; the arc-shaped concave area is arranged on the side wall of the area where the middle plane area is located, and the width of the front plane area and the width of the rear plane area are larger than the width of the middle plane area.

In some embodiments of the present application, the arc indent region extends from the edge of the shown midplane region to the corresponding edge of the bottom end face of the lifting rib, and the top end face of the lifting rib faces towards the direction of the bottom end face of the lifting rib, and the depth of the arc groove becomes shallow gradually.

In some embodiments of the present application, the front plane area, the middle plane area, and the rear plane area are all provided with a plurality of water leakage holes; the number of the water leakage holes in the front plane area and the rear plane area is larger than that of the water leakage holes in the middle plane area.

In some embodiments of the present application, a plurality of buckles are convexly arranged on the bottom end surface of the lifting rib; the inner barrel is provided with a plurality of bayonets on the peripheral wall, and the buckles correspondingly extend into the bayonets one by one and are clamped on the bayonets.

In some embodiments of the present application, the lifting rib is provided with a plurality of lifting ribs circumferentially and alternately arranged on the inner wall of the inner barrel.

According to the above technical scheme, the embodiment of the utility model provides an at least have following advantage and positive effect:

the utility model discloses in the washing machine, when the relative urceolus of inner tube rotates, promote the clothing in the washing chamber through promoting the muscle, and utilize the arc recess on the lateral wall face of promotion muscle, the middle zone width at cooperation arc recess place is less than the width at both ends around promoting the muscle, and then make the clothing can progressively be close to arc recess place region at the promotion in-process, and then progressively guide the clothing to the middle zone of washing chamber, prevent that the clothing from concentrating on the front side or the rear side of inner tube, be favorable to reducing the wearing and tearing of clothing, reduce the vibration of inner tube, and the noise reduction, improve washing machine's wholeness ability.

Drawings

Fig. 1 is a schematic structural diagram of a washing machine according to an embodiment of the present invention.

Fig. 2 is a schematic view of the structure of the inside of the washing machine of fig. 1.

Fig. 3 is a front view of fig. 2.

Fig. 4 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 3.

Fig. 5 is a schematic view of the structure of fig. 2 with the outer cylinder removed.

Fig. 6 is a schematic view of the structure of the inner cylinder of fig. 2.

Fig. 7 is an exploded schematic view of fig. 6.

FIG. 8 is a schematic view of the inner barrel of FIG. 7.

Fig. 9 is a schematic view of the construction of the lifting rib of fig. 7.

Fig. 10 is a front view of fig. 9.

Fig. 11 is a sectional view taken along line B-B of fig. 10.

Fig. 12 is a schematic view of the lifting rib of fig. 9 from another perspective.

Fig. 13 is a front view of fig. 12.

The reference numerals are illustrated below: 1. a box body; 11. a door body; 12. a pulley; 13. a drive shaft; 2. an outer cylinder; 3. an inner barrel; 30. a washing chamber; 31. an installation position; 32. a bayonet; 33. a water inlet; 4. lifting the ribs; 41. buckling; 42. an arc-shaped groove; 431. a front straight region; 432. an arc-shaped concave area; 433. a rear flat area; 441. a front plane area; 442. a midplane area; 443. a back plane area; 45. and a water leakage hole.

Detailed Description

Exemplary embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments, and its several details are capable of modification in various other respects, all without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and thus are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

At present, in a related drum washing machine, a lifting rib structure is generally a straight structure penetrating through the front and the back of an inner drum, and lifting ribs can lift clothes after contacting the clothes, but in the washing machine with the structural scheme, the clothes are easily concentrated on the front side or the back side of the inner drum during washing of the clothes, so that the clothes rub against the front part or the back part of the inner drum, the clothes are abraded, the clothes are concentrated on the front side or the back side of the inner drum, the stress is unbalanced, the inner drum vibrates, and the washing and dehydration noise becomes large.

Fig. 1 is a schematic structural diagram of a washing machine according to an embodiment of the present invention. Fig. 2 is a schematic view of the structure of the inside of the washing machine of fig. 1.

Referring to fig. 1 and 2, a washing machine according to an embodiment of the present invention mainly includes a box 1, an outer tub 2, an inner tub 3, and a lifting rib 4.

The cabinet 1 is generally of a rectangular hollow structure, the cabinet 1 serves as a housing of the drum washing machine, and the appearance shape of the cabinet can be designed according to needs. The inner space of the box body 1 can provide installation space for the components such as the outer cylinder 2, the inner cylinder 3, the lifting ribs 4 and the like.

The front side of the box body 1 is provided with an opening. A door body 11 is arranged at an opening of the box body 1, and the door body 11 can open and close the opening. The door body 11 and the box body 1 can be connected through a hinge, so that the door body 11 can rotate around the axis of the hinge, the opening and closing of the door body 11 are realized, and the opening of the front side of the box body 1 is opened and closed.

The outer cylinder 2 is fixedly provided in the casing 1, and a cylindrical opening of the outer cylinder 2 is opened to a front side of the casing 1. The outer tub 2 is used to contain washing liquid, such as water. The inner cylinder 3 is rotatably arranged inside the outer cylinder 2, a washing cavity 30 is formed in the inner cylinder 3, and the washing cavity 30 is used for containing clothes to be cleaned.

In some embodiments, the outer barrel 2 and the inner barrel 3 are coaxially arranged inside and outside. The outer wall of the inner drum 3 is provided with a hole (not shown), and water in the outer drum 2 can enter the inner drum 3 through the hole so as to clean clothes in the inner drum 3.

Fig. 3 is a front view of fig. 2. Fig. 4 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 3.

Referring to fig. 2 to 4, in some embodiments, a driving device is disposed in the box 1. The driving device is arranged outside the outer barrel 2, and the output end of the driving device extends into the outer barrel 2 to be in transmission connection with the inner barrel 3 so as to drive the inner barrel 3 to rotate relative to the outer barrel 2 and further clean clothes in the inner barrel 3.

In some embodiments, the drive means comprises a drive motor, a belt, a pulley 12 and a drive shaft 13. Wherein, the belt pulley 12 is rotatably arranged outside the outer cylinder 2 through a transmission shaft 13. The transmission shaft 13 extends into the outer cylinder 2 along the axis of the outer cylinder 2 and is in coaxial transmission connection with the inner cylinder 3. The driving motor is arranged in the box body 1, one end of the belt is sleeved at the output end of the driving motor, and the other end of the belt is sleeved on the belt pulley 12. Therefore, the driving motor can drive the belt pulley 12 to rotate through the belt, and further drive the inner drum 3 to synchronously rotate relative to the outer drum 2, thereby realizing the washing function of clothes.

Fig. 5 is a schematic structural view of fig. 2 with the outer cylinder 2 removed. Fig. 6 is a schematic view of the structure of the inside of the inner cylinder 3 in fig. 2. Fig. 7 is an exploded schematic view of fig. 6. Fig. 8 is a schematic structural view of the inner cylinder 3 in fig. 7.

Referring to fig. 2 to 8, the lifting rib 4 is disposed in the washing chamber 30 and on the inner wall of the inner drum 3. The lifting rib 4 is formed in an elongated shape and extends in the front-rear direction of the washing chamber 30, that is, the lifting rib 4 extends in the front-rear direction of the inner tub 3. The lifting ribs 4 can constantly lift the laundry in the washing chamber 30 when the drum 3 rotates relative to the tub 2.

Referring to fig. 7 and 8, in some embodiments, three lifting ribs 4 are provided, and the three lifting ribs 4 are circumferentially and alternately arranged on the inner wall of the inner drum 3. When the inner drum 3 rotates relative to the outer drum 2, the three lifting ribs 4 can sequentially lift the clothes in the washing cavity 30, thereby improving the washing effect on the clothes.

It should be noted that, in other embodiments, one or more lifting ribs 4 may also be provided, and the number of the lifting ribs 4 may be adjusted as needed, which is not limited herein.

Referring to fig. 7 and 8, in some embodiments, the lifting ribs 4 are detachably fixed to the inner wall of the inner drum 3. The circumferential wall of the inner cylinder 3 is provided with mounting positions 31 for positioning and mounting the lifting ribs 4, and the mounting positions 31 extend along the front-rear direction of the inner cylinder 3. The lifting ribs 4 are detachably fixed at the mounting locations 31 in a one-to-one correspondence.

Fig. 9 is a schematic view of the structure of the lifting rib 4 in fig. 7. Fig. 10 is a front view of fig. 9. Fig. 11 is a sectional view taken along line B-B of fig. 10. Fig. 12 is a schematic view of the lifting rib 4 of fig. 9 from another perspective. Fig. 13 is a front view of fig. 12.

Referring to fig. 7 to 13, in some embodiments, the inner cylinder 3 has a plurality of bayonets 32 formed on a peripheral wall thereof, and the plurality of bayonets 32 are located at the mounting position 31. The outer wall of the lifting rib 4 is convexly provided with a plurality of buckles 41, and the buckles 41 protrude out of the surface of the lifting rib 4. When promoting muscle 4 counterpoint and installing in installation position 31 department, in buckle 41 can stretch into bayonet 32 to the joint is in bayonet 32 department, a plurality of buckles 41 can the one-to-one ground with a plurality of bayonet 32 looks joint, and then make to promote muscle 4 fixed subsides and establish on the inner wall of inner tube 3.

It should be noted that the end surface of the lifting rib 4, which is attached to the inner cylinder 3, is a bottom end surface, the end surface of the lifting rib 4, which faces the center of the washing chamber 30, is a top end surface, and the buckle 41 is protruded on the bottom end surface of the lifting rib 4. Therefore, when the lifting rib 4 is installed at the installation position 31 in a contraposition manner, the buckle 41 and the bayonet 32 are both hidden between the lifting rib 4 and the inner barrel 3 and are not exposed out of the washing cavity 30.

In some embodiments, three sets of the bayonets 32 are provided on the inner barrel 3, and the three sets of the bayonets 32 are provided at the front end, the middle portion and the rear end of the mounting position 31. Each set of bayonets 32 comprises two bayonets 32, and the two bayonets 32 are arranged at intervals along the circumferential direction of the inner barrel 3. Simultaneously, promote and be equipped with three group's buckles 41 on the muscle 4, three group's buckles 41 locate the front end, middle part and the rear end of promoting the bottom face of muscle 4 respectively, and every group buckle 41 all includes two buckles 41, and these two buckles 41 are arranged on promoting the muscle 4 at the interval. Three groups of buckles 41 on the lifting rib 4 and three groups of bayonets 32 on the inner cylinder 3 are arranged in a one-to-one correspondence manner, so that the front end, the middle part and the rear end of the lifting rib 4 with a strip-shaped structure can be stably fixed on the inner wall of the inner cylinder 3.

It should be noted that, in other embodiments, the number of the buckles 41 and the bayonets 32 may also be adjusted according to needs, and is not limited herein.

Referring to fig. 7 to 10, in some embodiments, an arc-shaped groove 42 is formed on a side wall surface of the lifting rib 4. The two arc-shaped grooves 42 are formed on two opposite side wall surfaces of the lifting rib 4, respectively, and the two arc-shaped grooves 42 are formed on the two opposite side wall surfaces of the lifting rib 4. The two arc-shaped grooves 42 are oppositely arranged left and right, the two arc-shaped grooves 42 are respectively sunken towards the mutually approaching direction, and the two arc-shaped grooves 42 are both in arc-shaped structures.

Referring to fig. 9 and 10, the two arc-shaped grooves 42 are both disposed in the middle region of the lifting rib 4, that is, the arc-shaped grooves 42 are located in the region between the front end of the lifting rib 4 and the rear end of the lifting rib 4. Therefore, the width of the middle area of the lifting rib 4 can be smaller than the width of the front and rear ends of the lifting rib 4. In addition, since the lifting rib 4 extends in the front-rear direction of the washing chamber 30, the arc-shaped groove 42 can be located at the middle region of the washing chamber 30.

Referring to fig. 2 to 10, when the lifting rib 4 rotates forward or backward along with the inner tub 3 relative to the outer tub 2, the lifting rib 4 mainly lifts the laundry by the sidewall surfaces of the left and right sides thereof, so the laundry can be squeezed with the sidewall surfaces of the lifting rib 4, and in the process of squeezing each other, since the width of the middle area of the lifting rib 4 is small, the lifting rib 4 can gradually guide the laundry to the area where the arc-shaped groove 42 is located, and further guide the laundry to the middle area of the washing chamber 30, so as to prevent the laundry from concentrating on the front side or the rear side of the inner tub 3, which is beneficial for reducing the wear between the laundry and the front side or the rear side of the inner tub 3, so that the stresses on the front end and the rear end of the inner tub 3 are more balanced, thereby reducing the vibration of the inner tub 3, and reducing the noise, and finally improving the overall performance of the washing machine.

Referring to fig. 9 and 10, in some embodiments, two arc-shaped grooves 42 are arranged on the left and right side wall surfaces of the lifting rib 4 in a mirror symmetry manner. Therefore, the lifting ribs 4 can gradually guide the laundry to the middle region of the washing chamber 30 when the drum 3 rotates in a forward or reverse direction.

It should be noted that in other embodiments, the two arc-shaped grooves 42 of the lifting rib 4 may not be arranged in mirror symmetry.

It should also be noted that in other embodiments, only one of the arc-shaped grooves 42 of the lifting rib 4 may be provided, that is, the arc-shaped groove 42 is provided on only one side wall surface of the lifting rib 4.

Referring to fig. 9 and 10, in some embodiments, the side wall surface of the lifting rib 4 includes a front flat region 431, a rear flat region 433, and an arc-shaped concave region 432. The front flat area 431 is located at the front end of the lifting rib 4, the rear flat area 433 is located at the rear end of the lifting rib 4, and both the front flat area 431 and the rear flat area 433 are of a planar structure. An arcuate recessed area 432 is formed intermediate the front and rear flat areas 431 and 433, and an arcuate groove 42 is formed in the arcuate recessed area 432. The arc-shaped concave area 432 and the front and rear flat areas 431 and 433 are in smooth transition, so that the arc-shaped groove 42 can form an arc-shaped concave structure.

It should be noted that the structure of the arc-shaped groove 42 can also be a C-shaped or U-shaped structure, i.e., a C-shaped or U-shaped structure is formed between the front flat region 431, the rear flat region 433 and the arc-shaped concave region 432.

When the laundry is pressed against the sidewall surface of the lifting rib 4, the laundry at the front flat region 431 and the rear flat region 433 can gradually move toward the arc-shaped concave region 432, so that the laundry is guided to the region of the arc-shaped groove 42, that is, the laundry is gradually guided to the middle region of the washing chamber 30.

Referring to fig. 9 and 10, in some embodiments, the width of the bottom end surface of the lifting rib 4 is greater than the width of the corresponding area of the top end surface of the lifting rib 4, the distance between the left and right side wall surfaces of the lifting rib 4 is gradually reduced, and the left and right side wall surfaces of the lifting rib 4 are arranged to extend toward the center of the washing chamber 30. Meanwhile, the front flat area 431 and the rear flat area 433 are each arranged so that an edge of the bottom end face extends obliquely toward a corresponding edge of the top end face. Therefore, during the lifting of the laundry by the lifting rib 4, the laundry can move along the sidewall of the lifting rib 4 toward the center of the washing chamber 30, while the laundry at the front and rear flat regions 431 and 433 can gradually move toward the arc-shaped concave region 432, i.e., toward the middle region of the washing chamber 30.

Referring to fig. 9 and 10, in some embodiments, the depth of the arc-shaped groove 42 gradually becomes shallower in a direction from the top end surface of the lifting rib 4 toward the bottom end surface of the lifting rib 4. I.e., in a direction toward the center of the washing chamber 30, the depth of the arc-shaped groove 42 becomes gradually deeper. Therefore, during the lifting of the laundry, the laundry in the arc-shaped groove 42 can move more smoothly toward the center of the washing chamber 30, and at the same time, the laundry in the front flat region 431 and the rear flat region 433 can move smoothly toward the arc-shaped concave region 432.

Referring to fig. 9 to 11, in some embodiments, the top end surface of the lifting rib 4 is a flat surface, and the top end surface of the lifting rib 4 includes a front plane area 441, a middle plane area 442 and a rear plane area 443, which are sequentially arranged from front to back. Front flat area 441 is located at the front end of lifting rib 4, and front flat area 431 is located on the sidewall of the area where front flat area 441 is located. The rear flat area 433 is located at the rear end of the lifting rib 4, and the rear flat area 433 is located on the side wall of the area where the rear flat area 443 is located. The central planar area 442 is located in the middle of the lifting rib 4, and the curved concave area 432 is located on the sidewall of the area where the central planar area 442 is located. Due to the configuration of the arcuate recesses 42 in the sidewall faces of the lifting ribs 4, the width of the front and rear planar areas 441, 443 is greater than the width of the midplane area 442.

Referring to fig. 9 and 10, in some embodiments, the arc-shaped concave area 432 extends from the edge of the middle plane area 442 to the corresponding edge of the bottom end surface of the lifting rib 4. The depth of the arc-shaped groove 42 becomes gradually shallower in the direction of the top end face of the lifting rib 4 toward the bottom end face of the lifting rib 4.

Referring to fig. 7 to 13, in some embodiments, the lifting rib 4 has a hollow structure inside. Specifically, the bottom end face of the lifting rib 4 is open, and when the lifting rib 4 is installed on the inner wall of the inner cylinder 3, a cavity structure is formed by the surrounding of the lifting rib 4 and the inner wall of the inner cylinder 3. A water inlet 33 is arranged on the circumferential wall of the inner barrel 3, the water inlet 33 is positioned at the installation position 31, and the water inlet 33 is communicated with the cavity inside the lifting rib 4. Meanwhile, a plurality of water leakage holes 45 are formed in the top end face of the lifting rib 4. The water leakage holes 45 communicate the cavity inside the lifting rib 4 with the washing chamber 30. Therefore, during the lifting of the clothes, the water in the outer tub 2 or the external water source can enter the cavity inside the lifting rib 4 through the water inlet 33 and enter the washing cavity 30 through the water leakage hole 45, so as to wash the clothes at the lifting rib 4 and make the clothes smoothly fall off from the lifting rib 4.

Referring to fig. 9 and 10, in some embodiments, the front plane area 441, the middle plane area 442 and the rear plane area 443 are all formed with a plurality of water leakage holes 45, and the number of the water leakage holes 45 on the front plane area 441 and the rear plane area 443 is greater than the number of the water leakage holes 45 on the middle plane area 442. Further, the water leakage holes 45 of the front and rear sections 441, 443 allow more water to flow out, so that the clothes in the front and rear sections 441, 443 can be separated from the lifting ribs 4 and smoothly move toward the middle of the washing chamber 30.

Based on the technical scheme, the embodiment of the utility model provides a have following positive effect:

the utility model discloses in the washing machine, when 2 rotations of the relative urceolus of inner tube 3, promote the clothing in the washing chamber 30 through promoting muscle 4, and utilize arc recess 42 on the side wall face of promotion muscle 4, the middle zone width at cooperation arc recess 42 place is less than the width at both ends around promoting muscle 4, and then make the clothing can progressively be close to arc recess 42 place region at the promotion in-process, and then progressively guide the clothing to the central zone of washing chamber 30, prevent that the clothing from concentrating on the front side or the rear side of inner tube 3, be favorable to reducing the wearing and tearing of clothing, reduce the vibration of inner tube 3, and the noise reduction, improve washing machine's wholeness ability.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terms used are words of description and illustration, rather than words of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. A washing machine, characterized by comprising:

an outer cylinder;

the inner cylinder is rotatably arranged in the outer cylinder, and a washing cavity is formed in the inner cylinder;

the lifting ribs are arranged in the washing cavity and on the inner wall of the inner barrel, and the lifting ribs extend along the front and back directions of the washing cavity;

the side wall surface of the lifting rib is provided with an arc-shaped groove, and the arc-shaped groove is formed in the middle area of the front end and the rear end of the lifting rib and is positioned in the middle area of the washing cavity; and the width of the middle area of the lifting rib is smaller than the width of the front end and the rear end of the lifting rib.

2. The washing machine as claimed in claim 1, wherein the lifting rib is provided with two of the arc grooves, the two arc grooves are respectively provided on two opposite side wall surfaces of the lifting rib, and the two arc grooves are concavely formed in directions approaching each other.

3. A washing machine according to claim 2, wherein the two arcuate recesses of the lifting rib are arranged in mirror symmetry.

4. The washing machine as claimed in claim 1, wherein the sidewall surface of the lifting rib includes a front flat region, a rear flat region and an arc-shaped concave region;

the front straight area is positioned at the front end of the lifting rib and is of a plane structure;

the rear straight area is positioned at the rear end of the lifting rib and is of a plane structure;

the arc-shaped concave area is formed between the front straight area and the rear straight area;

the arc-shaped groove is formed in the arc-shaped concave area.

5. The washing machine as claimed in claim 4, wherein the end surface of the lifting rib which is attached to the inner wall of the inner tub is a bottom end surface, and the end surface of the lifting rib which faces the washing chamber is a top end surface;

the width of the bottom end face of the lifting rib is larger than that of a corresponding area of the top end face of the lifting rib, and the front straight area and the rear straight area are arranged in a mode that the edge of the bottom end face extends towards the corresponding edge of the top end face in an inclined mode.

6. The washing machine as claimed in claim 5, wherein the top end surface of the lifting rib is a flat surface, and the top end surface of the lifting rib comprises a front plane area, a middle plane area and a rear plane area which are arranged from front to back;

the front plane area is positioned at the front end of the lifting rib, and the front straight area is arranged on the side wall of the area where the front plane area is positioned;

the rear flat area is positioned at the rear end of the lifting rib and is arranged on the side wall of the area where the rear flat area is positioned;

the arc-shaped concave area is arranged on the side wall of the area where the middle plane area is located, and the width of the front plane area and the width of the rear plane area are larger than the width of the middle plane area.

7. The washing machine as claimed in claim 6, wherein the arc-shaped concave area extends from the edge of the midplane area to the corresponding edge of the bottom end surface of the lifting rib, and the depth of the arc-shaped groove becomes gradually shallower in a direction from the top end surface of the lifting rib toward the bottom end surface of the lifting rib.

8. The washing machine as claimed in claim 6, wherein a plurality of water leakage holes are formed on the front plane area, the middle plane area and the rear plane area;

the number of the water leakage holes in the front plane area and the rear plane area is larger than that in the middle plane area.

9. The washing machine as claimed in claim 5, wherein a plurality of catches are protruded from a bottom surface of the lifting rib;

the inner barrel is provided with a plurality of bayonets on the peripheral wall, and the buckles correspondingly extend into the bayonets one by one and are clamped on the bayonets.

10. The washing machine as claimed in claim 1, wherein the lifting rib is provided in plurality, and the plurality of lifting ribs are circumferentially and intermittently arranged on the inner wall of the inner tub.

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