1. A washing machine, characterized by comprising:

a box body;

an outer tub disposed in the case; the side wall of the outer barrel is provided with an inner blocking rib, an outer blocking rib and a bottom plate positioned below the inner blocking rib and the outer blocking rib, the inner blocking rib, the bottom plate and the outer blocking rib define an overflow groove, and the overflow groove is internally provided with at least one overflow port for overflowing water in the outer barrel; the height of the inner blocking rib is lower than that of the outer blocking rib;

and the controller is used for controlling the water level in the outer barrel to be higher than the height of the inner barrier rib and lower than the height of the outer barrier rib when the washing machine is in a rinsing program.

2. The washing machine as claimed in claim 1, wherein the controller further controls to continue to supply water into the outer tub after the water level in the outer tub is higher than the inner barrier rib and lower than the outer barrier rib.

3. The washing machine as claimed in claim 1, wherein the controller controls water to be supplied into the outer tub after a rinsing process of the washing machine is finished until a draining process of the washing machine is started.

4. A washing machine as claimed in claim 1, wherein the inner rib is a portion of a sidewall of the outer tub, and the overflow vent is provided on at least one of the bottom plate and the outer rib.

5. A washing machine as claimed in claim 1, wherein the overflow port is provided on the bottom plate, and a portion of the outer bead near the overflow port protrudes outward of the tub to form a water collecting portion.

6. The washing machine as claimed in claim 1, wherein the overflow groove is provided near a top end of the outer tub; and/or the presence of a gas in the gas,

the outer retaining rib is a part of the side wall of the outer barrel, and the overflow port is arranged on the outer retaining rib.

7. A washing machine as claimed in any one of claims 1 to 6 wherein the outer and inner ribs and the base plate are provided in the shape of a closed circular ring.

8. A washing machine as claimed in any one of claims 1 to 6 wherein the bottom plate is disposed obliquely upwardly from outside the outer tub to inside the outer tub.

9. A washing machine as claimed in any one of claims 1 to 6, wherein a water guide pipe is provided on a side wall of the outer tub, a water inlet at a top of the water guide pipe is connected to the overflow port, and a water outlet at a bottom of the water guide pipe is connected to a drain valve; and/or the presence of a gas in the gas,

the outer surface of the outer barrier rib is provided with a plurality of buckles, and the buckles are used for being connected with the convex buckles arranged on the outer barrel cover; and/or the presence of a gas in the gas,

the outer surface of the outer barrier rib is provided with a plurality of connecting seats, and the connecting seats are used for being fastened and connected with the outer barrel cover through fasteners.

10. The washing machine as claimed in claim 9, wherein at least two of the outer tub, the inner barrier rib, the outer barrier rib, the bottom plate, the water guide duct, the buckle, and the connection seat are formed as an integrated structure by injection molding.

Background

At present, with the pace of life increasing, more and more people choose to wash clothes by using a washing machine, so that people are relieved from heavy household work, and more time can be provided for entertainment, work or study.

The existing washing machines can be classified into drum washing machines, pulsator washing machines, etc. according to the different washing modes. Taking a pulsator washing machine as an example, it includes an outer tub for containing water, an inner tub rotatably installed inside the outer tub, and a pulsator rotatably installed at the bottom of the inner tub. The water in the inner barrel is driven to generate vortex by the rotation of the impeller, and the inner barrel rotates forwards or reversely, so that the clothes, the water and the inner wall of the inner barrel are rubbed, and the clothes are cleaned and rinsed. Generally, in order to improve the rinsing effect, it is necessary to increase the rinsing time and the number of times of rinsing.

However, in the conventional washing machine, no matter the rinsing time or the number of times of rinsing is increased, foreign substances such as lint floating on the water surface are re-adhered to the clothes as the water level is lowered, and thus the foreign substances cannot be completely discharged by the rinsing.

Disclosure of Invention

In order to solve the above problems in the prior art, that is, to solve the problems that the rinsing effect can be realized only by increasing the rinsing time or the rinsing times and foreign matters such as lint floating on the water surface cannot be completely discharged in the rinsing process of the conventional washing machine, the present invention provides a washing machine, comprising: a box body; an outer tub disposed in the case; the side wall of the outer barrel is provided with an inner blocking rib, an outer blocking rib and a bottom plate positioned below the inner blocking rib and the outer blocking rib, the inner blocking rib, the bottom plate and the outer blocking rib define an overflow groove, and the overflow groove is internally provided with at least one overflow port for overflowing water in the outer barrel; the height of the inner blocking rib is lower than that of the outer blocking rib; and the controller is used for controlling the water level in the outer barrel to be higher than the height of the inner barrier rib and lower than the height of the outer barrier rib when the washing machine is in a rinsing program.

In the above preferred technical solution of the washing machine, after the water level in the outer tub is higher than the height of the inner barrier rib and lower than the height of the outer barrier rib, the controller further controls to continuously feed water into the outer tub.

In a preferred embodiment of the above washing machine, the controller controls water to be supplied into the outer tub after a rinsing process of the washing machine is completed until a draining process of the washing machine is started.

In a preferred embodiment of the above washing machine, the inner rib is a part of a sidewall of the outer tub, and the overflow vent is disposed on at least one of the bottom plate and the outer rib.

In a preferred embodiment of the above washing machine, the overflow port is provided in the bottom plate, and a part of the outer rib near the overflow port protrudes outward from the tub to form a water collecting portion.

In a preferred embodiment of the above washing machine, the overflow tank is disposed near a top end of the outer tub; and/or the outer retaining rib is a part of the side wall of the outer barrel, and the overflow port is arranged on the outer retaining rib.

In the preferable technical scheme of the washing machine, the outer blocking rib, the inner blocking rib and the bottom plate are arranged in a closed circular ring shape.

In a preferred embodiment of the above washing machine, the bottom plate is disposed to be inclined upward from an outside of the outer tub toward an inside of the outer tub.

In the preferable technical scheme of the washing machine, a water guide pipeline is arranged on the side wall of the outer barrel, a water inlet at the top of the water guide pipeline is connected with the overflow port, and a water outlet at the bottom of the water guide pipeline is used for being connected with a drain valve; and/or the outer surface of the outer barrier rib is provided with a plurality of buckles, and the buckles are used for being connected with the convex buckles arranged on the outer barrel cover; and/or the outer surface of the outer barrier rib is provided with a plurality of connecting seats which are used for being tightly connected with the outer barrel cover through fasteners

In the preferable technical scheme of the washing machine, at least two of the outer barrel, the inner blocking rib, the outer blocking rib, the bottom plate, the water guide pipeline, the buckle and the connecting seat are formed into an integral structure through injection molding.

As can be understood by those skilled in the art, the washing machine provided by the present invention includes a cabinet, an outer tub, and a controller. The outer barrel is arranged in the box body; the side wall of the outer barrel is provided with an inner blocking rib, an outer blocking rib and a bottom plate positioned below the inner blocking rib and the outer blocking rib, the inner blocking rib, the bottom plate and the outer blocking rib define an overflow groove, and the overflow groove is internally provided with at least one overflow port for overflowing water in the outer barrel; the height of the inner blocking rib is lower than that of the outer blocking rib; and the controller is used for controlling the water level in the outer barrel to be higher than the height of the inner barrier rib and lower than the height of the outer barrier rib when the washing machine is in a rinsing program. Thereby washing machine is at the in-process of rinsing, under the control of controller, washing machine continues to add water in the outer bucket, thereby the water in the outer bucket overflows from outer bucket oral area and enters into the overflow tank, the water that floats on the surface of water in the outer bucket enters into the overflow tank along with the water that overflows in to no longer have foreign matter such as burr on the surface of water in the outer bucket, realize the effective clearance to the burr foreign matter on the surface of water, avoided increasing rinsing time and rinsing number of times, improved the efficiency of rinsing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of an outer tub of a washing machine according to the present invention;

FIG. 2 is a schematic view of the outer tub of the washing machine of FIG. 1 from another perspective;

FIG. 3 is a top view of an outer tub of a washing machine according to the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic view of an outer tub of a washing machine according to the present invention from another view angle;

fig. 6 is a partially enlarged schematic view of fig. 5.

In the drawings: 1. an outer tub; 2. an overflow tank; 21. an inner blocking rib; 22. an outer barrier rib; 23. A base plate; 24. an overflow port; 25. a water collecting part; 26. a water guide pipeline; 27. buckling; 28. a connecting seat.

Detailed Description

First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications. Next, it should be noted that, in the description of the present invention, the terms of the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc., are based on the positional relationships when used by the user, if not specifically stated, which are merely for convenience of description, and do not indicate or imply that the device or member must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Some existing washing machines improve the rinsing effect by increasing the rinsing time and the number of times of rinsing, however, some fine foreign matters such as lint and the like float on the water surface due to the light density. Foreign matters such as burrs floating on the water surface can be re-adhered to the water surface along with the reduction of the water level in the draining process of the washing machine, and cannot be completely discharged in a rinsing mode, so that the rinsing effect is reduced.

The invention provides a washing machine, wherein an inner blocking rib, an outer blocking rib and a bottom plate positioned below the inner blocking rib and the outer blocking rib are arranged on the side wall of an outer barrel, the inner blocking rib, the bottom plate and the outer blocking rib define an overflow groove, and at least one overflow opening for overflowing water in the outer barrel is arranged in the overflow groove. Meanwhile, a controller for controlling the water level in the outer barrel to be higher than the height of the inner barrier rib and lower than the height of the outer barrier rib when the washing machine is in a rinsing program is added on the washing machine. Therefore, in the rinsing process of the washing machine, the controller controls the water to be injected into the outer barrel, redundant water overflows from the opening part of the outer barrel and enters the overflow tank, and foreign matters such as flocks floating on the water surface flow into the overflow tank along with the redundant water and are discharged through the overflow port in the overflow tank. Obviously, the washing machine provided by the invention can effectively clean foreign matters such as flocks and the like floating on the water surface in the rinsing process, thereby improving the rinsing effect and increasing the rinsing efficiency.

Fig. 1 is a schematic structural diagram of an outer tub of a washing machine according to the present embodiment, where the washing machine according to the present embodiment includes a cabinet, a controller, and the outer tub 1 shown in fig. 1, and the cabinet is used for supporting components inside the washing machine (for example, the outer tub 1). Meanwhile, the components such as the outer barrel 1 and the like are arranged in the box body, so that the components in the box body can be well protected.

The box body is in a hollow cuboid shape, and parts such as the motor, the inner barrel, the outer barrel 1 and the like are arranged in the cuboid. Wherein, the outer barrel 1 can be fixed in the box body through the fixing elements such as the suspender, the rotatable inner barrel is arranged in the outer barrel 1, the rotatable impeller is arranged at the bottom of the inner barrel, and the elements such as the motor and the clutch are arranged below the outer barrel 1. The top of the box body is provided with an upper enclosing frame, a box cover and a control panel, wherein the box cover is arranged in the upper enclosing frame, and the control panel is arranged on the upper enclosing frame. During the use process of the washing machine, firstly, the box cover is opened, then the clothes to be processed are put into the inner barrel, the box cover is closed, the procedures of washing or rinsing and the like are selected through the control panel, and the washing machine can clean the clothes.

With continued reference to fig. 1, the outer tub 1 is a hollow cylindrical structure with an open upper end for containing water. Specifically, the bottom of the tub 1 is circular, and the side wall thereof is substantially perpendicular to the bottom and extends upward. In some implementations, an angle may exist between the sidewall of the outer tub 1 and the axis of the outer tub 1, so that the area of the tub opening of the outer tub 1 is larger than the area of the tub bottom, thereby having a large washing capacity to facilitate dewatering, and the angle between the sidewall of the outer tub 1 and the axis of the outer tub 1 may range from 3 to 5 °. It should be noted that the upper end of the tub 1, i.e., the end facing the user, has an opening, and the lower end of the tub 1, i.e., the end away from the user, is closed.

The bottom of the outer barrel 1 is provided with at least one hanger rod seat for fixing a hanger rod, illustratively, the hanger rod seat is provided with a through hole, the axis of the through hole is parallel to the axis of the hanger rod seat, one end of the hanger rod penetrates through the through hole and is fixed with the through hole, and the other end of the hanger rod seat is detachably arranged on the box body, so that the outer barrel 1 is hung in the box body through the hanger rod. The outer barrel 1 is arranged inside the box body by adopting the hanging rod, so that the connection effect of the outer barrel 1 and the box body is ensured, and the vibration reduction effect can be realized, so that the balance and stability during washing and dewatering are ensured.

Fig. 2 shows a schematic view of the outer tub of the washing machine in fig. 1 at another viewing angle, and fig. 3 shows a top view of the outer tub of the washing machine provided in the present embodiment. As shown in fig. 2-3, the top end of the side wall of the outer tub 1 is provided with an inner rib 21, an outer rib 22 and a bottom plate 23 located below the inner rib 21 and the outer rib 22, the inner rib 21, the bottom plate 23 and the outer rib 22 define the overflow tank 2, at least one overflow gap 24 for water in the outer tub 1 to overflow is provided in the overflow tank 2, so that when the water in the outer tub 1 exceeds the top end of the inner rib, the water can flow out of the overflow gap of the overflow tank 2. It should be noted that, in the embodiment, the overflow groove 2 is not limited to be disposed inside the outer tub 1 or outside the outer tub 1, and the overflow groove can be disposed by a person skilled in the art according to actual needs.

The controller is used for controlling the water inlet of the washing machine during the rinsing process, specifically, the water level in the outer barrel 1 is higher than the height of the inner barrier rib 21 and lower than the height of the outer barrier rib 22. The controller is positioned in the upper surrounding frame of the box body and is electrically connected with the water inlet valve so as to play a role in controlling the water injection amount of the washing machine in a rinsing procedure. Specifically, the controller controls the water to be supplied to the inside after the rinsing process of the washing machine is finished until the draining process of the washing machine is started, and when the water level in the outer tub 1 is higher than the height of the inner barrier rib 21 and lower than the height of the outer barrier rib 22, the controller also controls the water to be supplied to the outer tub 1 continuously. It should be noted that the controller controls the flow rate of the water injected into the outer tub 1 in the above-mentioned time when the flow rate of the overflow port 24 is not lower than the same time, so as to prevent the excessive water from flowing out of the tub from the top opening of the overflow tank 2. In this embodiment, the time for the controller to control the water injection into the outer tub 1 is not limited until the rinsing process is finished and the draining process is started, and it is only required to ensure that all the foreign matters such as lint floating on the water surface can flow into the overflow tank 2 along with the water.

It can be seen that, in the present embodiment, the overflow groove 2 defined by the inner rib 21, the outer rib 22 and the bottom plate 23 is provided at the top end of the side wall of the outer tub 1, and at least one overflow gap 24 is provided in the overflow groove 2; when the rinsing program is carried out, the controller controls the water inlet valve of the washing machine, water is continuously injected into the outer barrel 1 of the washing machine within the time from the end of the rinsing program of the washing machine to the start of the drainage program, so that the water level in the outer barrel 1 of the washing machine rises until the water level exceeds the height of the inner stop rib 21, the water in the outer barrel 1 overflows from the opening of the outer barrel 1 and flows into the overflow tank 2, foreign matters such as flocks floating on the water surface flow into the overflow tank 2 along with the water, and flow out from the overflow port 24 in the overflow tank 2. Therefore, the rinsing effect of the washing machine is improved, the phenomenon that flocks and foreign matters floating on the water surface are attached to the surface of clothes along with the reduction of the water level when the washing machine drains water is avoided, and the situations of low rinsing efficiency and water resource waste caused by the increase of rinsing times and rinsing time are avoided.

It should be noted that the controller does not have to continue to supply water all the time after the rinsing process is finished and before the draining process is started, and in some implementations, the controller only needs to continue to supply water for a while after the water level is higher than the inner water blocking rib.

With continued reference to fig. 2 and 3, the outer retaining rib 22, the inner retaining rib 21 and the bottom plate 23 may be provided in a closed circular shape, the axes of the inner retaining rib 21, the outer retaining rib 22, the bottom plate 23 and the outer tub 1 are located on the same straight line, and the overflow groove 2 defined by the inner retaining rib 21, the outer retaining rib 22 and the bottom plate 23 is an annular container with an open top.

The inner ribs 21, the outer ribs 22 and the bottom plate 23 may be connected by various methods, for example, the overflow tank 2 may be formed as a single body by molding, or the three may be connected by other connecting methods such as bonding, screwing, etc.

The inner rib 21, the outer rib 22, the bottom plate 23 and the side wall of the outer tub 1 may also be connected in various ways, for example, the inner rib 21, the outer rib 22, the bottom plate 23 and the side wall of the outer tub 1 are fixed by fixing members, or the side wall of the outer tub 1 and the inner rib 21, the outer rib 22 and the bottom plate 23 are made into an integral piece.

It should be noted that although fig. 2 and 3 show the overflow groove 2 disposed at the top end of the outer tub 1, it may be disposed near the top end of the outer tub 1. For example, as will be apparent from the following description, the inner rib 21 or the outer rib 22 of the overflow groove 2 is attached to the side wall of the outer tub 1, when the inner rib 21 is attached to the side wall of the outer tub 1, the overflow groove 2 is located outside the outer tub 1, and when the outer rib 22 is attached to the side wall of the outer tub 1, the overflow groove 2 is located inside the outer tub 1, but the position of the overflow groove 2 does not affect the overflow effect thereof. No matter the overflow tank 2 is located inside or outside the outer tub 1, when the water level in the outer tub 1 rises and exceeds the height of the inner rib 21, water can overflow into the overflow tank 2 from the top of the inner rib 21.

In some implementations, the inner rib 21 is a portion of a sidewall of the outer tub 1, and the overflow groove 2 is located outside the outer tub 1. In other implementations, as shown in fig. 2-3, the overflow groove 2 is located inside the outer tub 1, and in this case, the outer rib 22 is a part of the sidewall of the outer tub 1. The overflow groove 2 is arranged outside the outer barrel 1, so that the inner space of the outer barrel 1 is larger, and the inner barrel positioned inside the outer barrel 1 is prevented from interfering with the overflow groove 2 when rotating; the overflow groove 2 is arranged inside the outer barrel 1, the cross-sectional area of the top of the outer barrel 1 is unchanged, the outer barrel 1 is more easily matched with the outer barrel cover, and the outer barrel cover does not need to be additionally manufactured.

Fig. 4 shows a cross-sectional view of fig. 3 in the direction a-a, and in some implementations, as shown in fig. 4, the inner bead 21 has a height that is less than the height of the outer bead 22. By making the height of the inner barrier rib 21 lower than that of the outer barrier rib 22, water is prevented from overflowing from the top of the outer barrier rib 22 when overflowing from the outer tub 1 to the overflow tank 2. The embodiment does not specifically limit the difference between the height of the inner rib 21 and the height of the outer rib 22, as long as the difference satisfies that the water overflowing from the top of the outer tub 1 will not overflow from the top of the outer rib 22 to the outside of the overflow tank 2.

In other implementations, the height of the inner rib 21 may be equal to the height of the outer rib 22, and a water outlet is provided near the top end of the inner rib 21, that is, a concave opening is provided at the top of the inner rib 21. The water outlet may take a variety of shapes, for example, square or triangular, among other suitable shapes. In the process that water overflows from the outer barrel 1 to the overflow groove 2, the water can directly overflow from the water outlet at the top of the inner barrier rib 21 to enter the overflow groove 2, and the effect of preventing the water from overflowing out of the barrel is also achieved.

With continued reference to fig. 4, the bottom plate 23 is disposed obliquely upward from the outside of the outer tub 1 toward the inside of the outer tub 1, that is, the overflow 24 mentioned hereinafter is disposed near the outside in the overflow tank 2, and the position inside the overflow tank 2 away from the overflow 24 is higher than the position of the overflow 24. In other words, the height of the bottom plate 23 at an end close to the central axis of the tub 1 is higher than the height of the bottom plate 23 at an end away from the central axis of the tub 1. Thereby, the drainage of the water inside the overflow tank 2 can be facilitated. The present embodiment does not limit the inclination angle of the bottom plate 23 as long as the inclination angle is sufficient to guide the water in the gutter 2, which is far from the weirs 24, into the weirs 24.

The number of the weirs 24 is not limited, and when the number of the weirs 24 is one, the weirs 24 are directly located inside the weirs 2, and when the number of the weirs 24 is plural, the plurality of weirs 24 may be arranged in various ways in the weirs 2, and illustratively, the plurality of weirs 24 are arranged in a circular array in the weirs 2.

Referring to fig. 2-3, weirs 24 are provided at the junctions of the bottom plates 23 and the outer ribs 22. The water overflowing from the inside of the outer tub 1 and flowing into the inside of the overflow tank 2 is discharged out of the overflow tank 2 through the overflow gate 24. For another example, the overflow vent 24 may be disposed at the bottom of the outer rib 22, specifically, an opening is formed at the bottom of the outer rib 22, and the opening may take various shapes, for example, the opening may be a semi-circle or a square. The water inside the overflow tank 2 can flow out through the overflow ports 24 at the bottom of the outer ribs 22. Or, the bottom of the outer rib 22 and the bottom plate 23 may be opened with openings, and the two openings are opposite to each other to form a similar hole-shaped structure, so that the water in the overflow tank 2 can flow out of the overflow tank 2 through the hole-shaped structure.

Fig. 5 shows a schematic view of the outer tub 1 of the washing machine provided by the present embodiment at a further viewing angle. As shown in fig. 2, 3 and 5, the overflow groove 2 is located inside the tub 1, the overflow port 24 is disposed on the bottom plate 23, a part of the outer rib 22 near the overflow port 24 protrudes outward from the tub 1 to form a water collecting portion 25, accordingly, the bottom plate 23 extends outward to be attached to the water collecting portion 25, and the overflow port 24 is located on the portion of the bottom plate 23 extending outward. Preferably, the outwardly extending portion of the bottom plate 23 is located below the main portion of the bottom plate 23, that is, the outwardly extending portion of the bottom plate 23, the sidewall of the tub and the water collecting part 25 define a cavity, and the overflow 24 is located at the bottom of the cavity, so that the water overflowing from the tub 1 and flowing into the overflow trough 2 can be collected in the cavity and discharged from the cavity bottom overflow 24. By providing a portion of the outer barrier rib 22 near the overflow port 24 to protrude to the outside of the outer tub 1 to form the water collecting part 25, it is possible to perform a function of collecting the water to facilitate the water discharge inside the overflow tank 2.

In other implementations, the overflow gate 24 is provided on the outer barrier rib 22 when the overflow groove is located inside the outer tub 1. At this time, the outer bead 22 may remain a portion of the sidewall of the outer tub 1. Alternatively, a water collecting part 25 is formed by protruding a part of the outer rib 22 to the outside of the tub 1, accordingly, a part of the bottom plate 23 extends to the outside of the tub 1 and is attached to the water collecting part 25, the overflow port 24 is located at the bottom of the water collecting part 25, and water inside the overflow tank 2 can be discharged from the overflow port 24 at the bottom of the water collecting part 25 to the outside of the overflow tank 2.

Fig. 6 is a partially enlarged schematic view of fig. 5, as shown in fig. 5-6, the outer surface of the outer rib 22 is provided with a plurality of fasteners 27, the fasteners 27 may have various structures, exemplarily, as shown in fig. 6, the fasteners 27 include two triangular plates and a rectangular plate, the two triangular plates are fixedly connected to the outer surface of the outer rib 22, the rectangular plate is connected between the two triangular plates, the rectangular plate is perpendicular to the axis of the outer tub 1, adaptively, the outer rib 22 protrudes outward from the outer wall of the outer tub, and the rectangular plate is located below the protruding portion and is tightly connected to the outer wall of the outer tub 1. Correspondingly, the convex buckle on the outer barrel cover is in a hook-shaped structure. When the outer barrel cover is connected with the outer barrel 1 through the buckles, the convex buckles on the outer barrel cover are positioned between the two triangular plates, the bottom of the outer barrel cover is abutted against the rectangular plates, and the hook parts are hooked at the bottom of the protruding parts. It will be readily appreciated that the arrangement of the plurality of catches 27 on the outer surface of the outer bead 22 is non-limiting, for example, the plurality of catches 27 are arranged equidistantly on the outer surface of the outer bead 22. In this embodiment, the specific number of the fasteners 27 and the arrangement of the plurality of fasteners 27 on the outer surface of the outer rib 22 are not limited, and those skilled in the art can set the fasteners according to actual needs. Through set up a plurality of buckles 27 on the surface of outer muscle 22, utilize buckle 27 to connect outer bucket 1 and outer bung, can realize the high-speed joint between outer bucket 1 and outer bung.

In some implementations, the outer surface of the outer retaining rib 22 is provided with a plurality of connecting seats 28, the connecting seats 28 may adopt various structures, for example, the connecting seat 28 main body is a protrusion protruding from the outer surface of the outer retaining rib 22 to the outside direction of the outer tub 1, the protrusion is provided with a through hole having an axial direction parallel to the axial direction of the outer tub 1, the bottom of the through hole is provided with a screw seat, and the through hole is communicated with a threaded hole inside the screw seat. Of course, the structure of the connection seat 28 in the present embodiment is not limited, and those skilled in the art may make appropriate modifications to the structure of the connection seat 28.

It should be noted that the number of the connecting seats 28 and the arrangement of the connecting seats 28 between the outer side surfaces of the outer ribs 22 are not limited to the above-mentioned manner, and can be set by the person skilled in the art.

Through set up a plurality of connecting seats 28 on the lateral surface of outer fender muscle 22, use screw and connecting seat 28 to realize being connected between outer bucket 1 and the outer bung, can guarantee the stability of being connected between outer bucket 1 and the outer bung, outer bucket 1 is connected more tightly with outer bung.

As shown in fig. 6, in some implementations, a plurality of connecting seats 28 and a plurality of buckles 27 may be simultaneously disposed on the outer surface of the outer rib 22, wherein an opening is opened in the middle of the connecting seat 28, and the buckle 27 is disposed in the middle opening of the connecting seat 28. Meanwhile, the connecting seat 28 and the buckle 27 are used for fixing the outer barrel 1 and the outer barrel cover, so that the quick positioning connection between the outer barrel 1 and the outer barrel cover can be realized, and the stability of connection between the outer barrel 1 and the outer barrel cover can be ensured.

As shown in fig. 1, 4 and 5, a water guiding pipe 26 is disposed on a side wall of the outer tub 1, a water inlet at a top of the water guiding pipe 26 is connected to the overflow port 24, and a water outlet at a bottom of the water guiding pipe 26 is connected to a drain valve (not shown). The specific structure of the drain valve is not limited in this embodiment, and a person in the art can select any suitable drain valve according to actual needs, and of course, an existing drain valve, such as an electromagnetic valve or a gate valve, can also be selected. By connecting the overflow 24 and the drain valve through the water conduit 26, a flow path of water flowing out from the overflow 24 is defined, so that the water inside the overflow tank 2 flows out from the overflow 24 and then flows out of the outer tub 1 through the drain valve, and the water overflowing from the overflow 24 is prevented from remaining under the outer tub to cause short circuit of electrical components positioned under the outer tub 1.

It is worth mentioning that at least two of the outer barrel 1, the inner rib 21, the outer rib 22, the bottom plate 23, the water conduit 26, the buckle 27 and the connecting seat 28 are formed into an integral structure by injection molding. For example, the water conduit 26 and the outer tub 1 are integrated, so that the relative movement between the water conduit 26 and the outer tub 1 during the rotation of the outer tub 1 can be effectively prevented, the secondary assembly process can be reduced, and the production efficiency can be improved. Preferably, the outer barrel 1, the inner retaining rib 21, the outer retaining rib 22, the bottom plate 23, the water conduit 26, the buckle 27 and the connecting seat 28 are all formed into an integral structure through injection molding, so that the production efficiency of the outer barrel 1 can be effectively improved.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.