Washing drum and washing equipment

Abstract

The utility model relates to a washing drum and washing equipment, the washing drum comprises a drum body, a protruding part (3400) protruding outwards in the radial direction is arranged on the peripheral wall of the drum body, an inner cavity of the protruding part (3400) is communicated with a washing cavity of the drum body, the protruding part (3400) is at least partially arranged on the first side of the lowest point of the drum body and is obliquely arranged, and the inner cavity of the protruding part (3400) is communicated with the washing cavity of the drum body. The first side is the side, far away from an object to be avoided, of the washing drum. Compared with a horizontally-arranged embodiment, the obliquely-arranged protruding part can avoid the first washing barrel, the layout is more reasonable, and the overall occupied space of the washing equipment is reduced. The protruding part is arranged close to the lowest point, the drainage efficiency can be improved, it is guaranteed that all water can be drained, residual water is reduced, and bacterium and mould breeding is avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of clothing processing equipment, and in particular to a washing drum and a washing equipment. Background Art

[0002] With rising consumer demand for washing machine functionality, users are demanding higher functionality. Twin-drum washing machines feature two independent wash chambers, accommodating varying capacities and types of laundry, improving both flexibility and efficiency. In related technologies, the two wash drums of twin-drum washing machines are stacked vertically, occupying a significant amount of space. To reduce the size of twin-drum washing machines and shorten the distance between the two wash drums, interference is inevitable. Preventing this interference while minimizing the space occupied has become a pressing challenge in washing machine development. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a washing drum and a washing device.

[0004] According to a first aspect of an embodiment of the present disclosure, a washing drum is provided, comprising a drum body, wherein a protrusion protruding radially outward is provided on the outer peripheral wall of the drum body, and the inner cavity of the protrusion is communicated with the washing cavity of the drum body, wherein the protrusion is at least partially provided on the first side of the lowest point of the drum body and is arranged obliquely, and the first side is the side of the washing drum away from the object to be avoided.

[0005] Optionally, the cross-section of the barrel body has a highest point A on the upper side, a lowest point B on the lower side, a first vertex C on the leftmost side and a second vertex D on the rightmost side, and the protrusion has a first edge and a second edge connected to the barrel body, the axial projection point E of the first edge coincides with the lowest point B, and the axial projection point F of the second edge is located between the lowest point B and the first vertex C, or between the lowest point B and the second vertex D.

[0006] Optionally, the barrel body has an open end at the front and a closed end at the rear, the protrusion is arranged close to the closed end, and a drainage port is provided on the rear end surface of the protrusion.

[0007] Optionally, the drain outlet is located at the lowest point of the protrusion.

[0008] Optionally, the inner peripheral wall of the washing tub is provided with a guide portion extending toward the drain outlet.

[0009] Optionally, the junction position between the guide portion and the protrusion is the lowest point of the cylinder body.

[0010] Optionally, the guide portion is an arc-shaped guiding slope, and the circumferential width of the arc-shaped guiding slope gradually increases from the open end to the closed end.

[0011] Optionally, a circumferential notch on the inner circumferential wall of the barrel body forms the guide portion.

[0012] Optionally, a mounting seat is provided at the opening at the rear end of the protrusion, and the drainage port and the fixing portion for inserting the heater are integrated on the mounting seat. The drainage port is arranged near the first edge of the protrusion, and the fixing portion is arranged near the second edge of the protrusion.

[0013] Optionally, the drain outlet is connected to a drain pipe, the seat body has an inner surface and an outer surface, the drain pipe is arranged on the outer surface for communicating with the outside world, the fixed portion is arranged on the inner surface and extends in the opposite direction of the drain pipe, and the heater in the fixed portion can heat the liquid in the inner cavity of the protrusion.

[0014] Optionally, the protruding portion extends in the axial direction, and the length of the protruding portion in the axial direction is greater than the length of the fixing portion.

[0015] Optionally, the barrel body includes an inner barrel and an outer barrel, the inner barrel is rotatably arranged inside the outer barrel, the inner cavity of the inner barrel forms a washing cavity, the inner barrel is provided with a plurality of through holes to connect the washing cavity and the inner cavity of the outer barrel, and the protrusion is provided on the outer peripheral wall of the outer barrel.

[0016] According to a second aspect of an embodiment of the present disclosure, a washing device is provided, comprising the above-mentioned washing drum.

[0017] Optionally, the washing equipment includes a box body and a first washing drum and a second washing drum arranged in the inner cavity of the box body, the first washing drum is arranged in the middle of the inner cavity of the box body, the second washing drum is arranged at the upper right corner or the upper left corner of the first washing drum, and the protrusion of the second washing drum is arranged on the side of the axial section of the second washing drum away from the first washing drum.

[0018] Optionally, the rotation axes of the first washing tub and the second washing tub are arranged in parallel, there is a minimum distance d1 between the outer peripheral wall of the first washing tub and the outer peripheral wall of the second washing tub, and the distance between the first washing tub and the second washing tub in the direction of the center line is d2, wherein 15mm≤d1≤25mm, 35mm≤d2≤45mm.

[0019] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects: Compared with horizontally arranged embodiments, the inclined protrusions can avoid the first washing drum, resulting in a more rational layout and reducing the overall space occupied by the washing machine. The protrusions are positioned near the lowest point, which improves drainage efficiency, ensuring that all water can be drained, reducing residual moisture, and preventing the growth of bacteria and mold.

[0020] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0022] Figure 1 is a cross-sectional view of a washing device according to an exemplary embodiment.

[0023] Figure 2 It is a schematic structural diagram of a washing drum shown in a related exemplary embodiment.

[0024] Figure 3 It is a schematic structural diagram of a washing drum according to an exemplary embodiment.

[0025] Figures 4 to 6 It is a schematic structural diagram of a heater mounting base from different perspectives according to an exemplary embodiment.

[0026] Figures 7 to 12 It is a schematic structural diagram of a washing drum from different perspectives according to an exemplary embodiment.

[0027] Figure 13 It is a partially enlarged view of a cross-sectional view of a washing device according to an exemplary embodiment.

[0028] Figure 14 It is a schematic structural diagram of a washing drum according to an exemplary embodiment.

[0029] Figure 15 The figure is a schematic diagram of a drainage pipeline of a second washing tub in a washing device according to an exemplary embodiment.

[0030] Figure 16 It is a schematic diagram of a drainage box in a washing device according to an exemplary embodiment.

[0031] Figure 17 and Figure 18 The figure is a schematic structural diagram of a first cover of a drainage box in a washing device according to an exemplary embodiment.

[0032] Figures 19 to 21 The figure is a schematic structural diagram of a second cover of a drainage box in a washing device according to an exemplary embodiment.

[0033] Description of Reference Numerals

[0034] 1000-case; 3000'-existing drum body; 3000-second washing drum; 3001-open end; 3002-closed end; 3003-flow guide; 3004-drain outlet; 3005-opening; 3100-outer drum; 3111-notch; 3200-inner drum; 3300-mounting seat; 3310-seat body; 3320-drain pipe; 3330-fixing portion; 3331-socket; 34 00'-heating tank; 3400-protrusion; 3401-first edge; 3402-second edge; 4000-first washing drum; 5100-first drain pipe; 5200-water pump; 5300-main drain pipe; 5400-water valve; 5500-drain box; 5510-first cover; 5511-water outlet; 5520-second cover; 5521-first water inlet; 5522-second water inlet. DETAILED DESCRIPTION

[0035] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0036] The embodiments described in the following examples of the present disclosure do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0037] It should be noted that all actions of acquiring signals, information or data in the present disclosure are carried out in compliance with the corresponding data protection laws and policies of the country where they are located and with the authorization given by the owner of the corresponding device.

[0038] In this disclosure, Figure 1As shown, a washing device is provided, which can be a twin-drum washing machine. The washing device includes a housing 1000 and a first washing drum 4000 and a second washing drum 3000 arranged in the inner cavity of the housing 1000. The first washing drum 4000 is a large drum and can be arranged in the middle of the inner cavity of the housing 1000. The second washing drum 3000 is a small drum and can be arranged in the upper right corner or the upper left corner of the first washing drum 4000. The housing 1000 maintains the design of a standard housing. The length of the standard housing is 600±50mm, the width is 500~700mm, and the height is 850±50mm. By adjusting the relative position between the first washing drum 4000 and the second washing drum 3000 and the arrangement of the various components on the two, the occupied space of the washing device can be reduced. At the same time, it is ensured that there is no interference between the two washing drums in a limited space, which can meet the washing needs of different capacities and types, improve the flexibility and efficiency of washing, and meet the needs of different users.

[0039] In the relevant embodiments of the present disclosure, Figure 2 As shown, conventional drum bodies 3000' are typically provided with a horizontal heating tank 3400' at the bottom, with a heater installed within the tank. The heater heats the water in the drum, allowing steam washing or high-temperature washing of the laundry, thereby improving the washing effect. In the twin-drum washing machine embodiment provided herein, a horizontally arranged heating tank 3400' is no longer suitable, as it would clearly interfere with the first drum 4000.

[0040] In the relevant embodiments of the present disclosure, the drainage groove of the washing machine and the heating groove 3400' for accommodating the heater are arranged separately, and the two are respectively arranged at different positions on the outer peripheral wall of the drum body. They will also occupy the internal space of the box body 1000 and will interfere with the first washing drum 4000, and are no longer suitable for double-drum washing machines.

[0041] Based on the above, according to the first aspect of the present disclosure, Figures 4 to 6 As shown, a mounting base 3300 for a heater is provided, and the mounting base 3300 includes a base body 3310, on which a drain outlet 3004 and a fixing portion 3330 for inserting a heater (not shown) are integrated. Here, it should be noted that the material of the mounting base 3300 can be a metal material such as aluminum, and the heater can be a PTC (Positive Temperature Coefficient) heater, which can quickly transfer the heat of the heater to the water in the washing chamber to play a heating role. The heater and the fixing portion 3330 can be fixed in an interference fit. In other embodiments, they can also be clamped, bonded, etc. The fixing portion 3330 can be integrally formed with the base body 3310, or can be processed separately later, both of which fall within the scope of protection of the present disclosure.

[0042] In the mounting base 3300 provided in the present invention, the heater can be first inserted into the fixing portion 3330 of the mounting base 3300, and then the mounting base 3300 can be fixed in a suitable position, integrating heating and drainage together, improving the integration of components on the washing drum, completing the installation of the heater and drainage pipe at one time, improving assembly efficiency, and reducing occupied space.

[0043] In an exemplary embodiment of the present disclosure, the drain outlet 3004 is connected to a drain pipe 3320. The seat body 3310 has an inner surface and an outer surface. The drain pipe 3320 is provided on the outer surface for communicating with the outside world. The fixing portion 3330 is provided on the inner surface. The heater in the fixing portion 3330 can heat the liquid in the inner cavity where the mounting seat 3300 is located. The drain pipe 3320 and the fixing portion 3330 are arranged in parallel and extend in opposite directions. Taking the mounting seat 3300 as an example, as shown in FIG. Figure 7 and Figure 8 As shown, the outer peripheral wall of the drum body is provided with a radially outwardly projecting protrusion 3400. The inner cavity of protrusion 3400 is connected to the washing chamber of the drum body. The mounting base 3300 is removably mounted on the end face of protrusion 3400 via fasteners. After mounting base 3300 is mounted on the end face of protrusion 3400, the base body 3310 can seal the opening 3005 at the rear end of protrusion 3400, preventing the washing liquid from leaking. During the washing process, water in the washing chamber enters the inner cavity of protrusion 3400 for heating. As the washing drum rotates, the heated water returns to the washing drum, raising the temperature of the washing water and improving washing efficiency. After washing is completed, the water can be discharged through drain pipe 3320. In other embodiments, the mounting position of mounting base 3300 can be adjusted as needed, and is not limited to being mounted on protrusion 3400. Of course, this disclosure also includes embodiments in which the washing water is discharged directly through drain port 3004 on the outer surface.

[0044] The structure and forming method of the fixing portion 3330 can be various. In the present disclosure, for example Figure 4 and Figure 5 As shown, the base body 3310 protrudes away from the outer surface to form a fixing portion 3330. This fixing portion 3330 comprises a fixing cavity that encloses the heater and a socket 3331 for inserting the heater. The socket 3331 is staggered with the drain port 3004. Within the cavity where the protrusion 3400 is located, the fixing portion 3330 completely encloses the heater, preventing contact between the heater and the water within the protrusion 3400 and providing a seal. The staggered installation of the heater and drain pipe 3320 allows for better integration of drainage and heating functions within the limited space of the mounting base 3300.

[0045] In this embodiment, if Figure 4 and Figure 6 As shown, the fixing portion 3330 can be a flat structure that matches the shape of the heater, and the socket 3331 of the fixing portion 3330 can be an elongated hole. In other embodiments, the fixing portion 3330 can also be a square slot, an oval slot, etc. Furthermore, the length of the fixing portion 3330 is related to the axial length of the protrusion 3400. The axial length of the protrusion 3400 can be slightly greater than the length of the fixing portion 3330 to prevent the fixing portion 3330 from being too long and hitting the step of the protrusion 3400.

[0046] A temperature detection element is provided at one end of the protrusion 3400 away from the opening 3005 , which may be a temperature sensor that can obtain temperature information of the water in the washing tub in real time, thereby facilitating intelligent control of the washing process.

[0047] According to the second aspect of the present disclosure, a washing drum is provided, which includes a drum body and a heater mounted on the drum body, and the heater is fixed to the drum body via the heater mounting seat 3300 described above. The washing drum can be the washing drum of a single-drum washing machine, or the large or small drum of a double-drum washing machine described above. Specifically, the small drum of a double-drum washing machine, in which the heater is mounted on the second washing drum 3000 via the above-mentioned mounting seat 3300, will be described in detail below. The washing drum has all the beneficial effects of the above-mentioned mounting seat 3300, which will not be repeated here. Figure 12 As shown, an annular boss is provided at the rear end opening 3005 of the protrusion 3400, and a plurality of spaced connecting ears are provided on the outer periphery of the annular boss. The seat body 3310 is located on the step surface of the annular boss and is fixed to the second washing drum 3000 by fasteners passing through the connecting ears.

[0048] In order to solve the problem of interference with the first washing drum 4000, the present disclosure Figure 2 The horizontally arranged heating tank 3400' is designed as follows: Figure 3 、 Figure 7 and Figure 8 As shown, the washing tub includes a tub body, the outer peripheral wall of which is provided with a protrusion 3400 protruding radially outward. The inner cavity of the protrusion 3400 is connected to the washing cavity of the tub body. The protrusion 3400 is at least partially provided on the first side of the lowest point of the tub body and is arranged obliquely. The first side is the side of the second washing tub 3000 away from the object to be avoided (such as the first washing tub 4000). Here, the "lowest point" of the tub body refers to the lowest point where the water in the washing cavity will gather under the action of gravity when the second washing tub 3000 is properly installed. Figure 3 and Figure 11At least a portion of the protrusion 3400 can be located to the left or right of the lowest point, B, depending on whether the second washing tub 3000 is located in the upper left or upper right corner of the first washing tub 4000. In embodiments where only heater installation is considered, the protrusion 3400 is tilted to avoid the first washing tub 4000 and can be located at any suitable location on the outer wall of the tub body. In embodiments where both heating and drainage are considered, the protrusion 3400 also needs to be located close to the lowest point, B.

[0049] Compared to the horizontal arrangement, the angled projection 3400 avoids the first washing tub 4000, creating a more rational layout and reducing the overall space occupied by the washing machine. It also prevents vibrations from the first washing tub 4000 from being transmitted to the second washing tub 3000. The placement of the projection 3400 near the lowest point improves drainage efficiency, ensuring that all water is drained, reducing residual moisture, and preventing the growth of bacteria and mold.

[0050] There are various ways to form the protrusion 3400. The protrusion 3400 can be formed integrally with the barrel wall, or it can be separately machined and mounted on the outer circumferential wall of the barrel body. In the latter embodiment, a structure communicating with the washing chamber is required to connect the inner cavity of the protrusion 3400 and the washing chamber. Both embodiments fall within the scope of protection of the present disclosure, and the former will be described in detail below.

[0051] Regarding the specific position of the protrusion 3400 in the axial and circumferential directions of the barrel body, in the present disclosure, the position setting of the protrusion 3400 needs to take into account both avoidance and drainage factors, such as Figure 7 As shown, the second washing tub 3000 has an open end 3001 for use at the front and a closed end 3002 at the rear. A protrusion 3400 is positioned near the closed end 3002 and extends axially. A fixed portion 3330 containing a heater is located within the inner cavity of the protrusion 3400, and a drain outlet 3004 is positioned toward the closed end 3002. The protrusion 3400 radially protrudes outward to form an inner cavity. This cavity, housing the heater, does not occupy additional space within the washing tub. Furthermore, since the heater is located within the inner cavity of the protrusion 3400, water within the washing tub is prevented from directly impacting the fixed portion 3330 and the heater, thus preventing damage to the heater. The protrusion 3400 is positioned near the rear end, and the drain pipe 3320 connected to the drain outlet 3004 does not need to be too long. The drain outlet 3004 is positioned toward the rear, adopting a straight-line arrangement for smoother drainage. To ensure that all water within the washing tub is drained and prevent residual moisture, the drain outlet 3004 is located at the lowest point of the protrusion 3400.

[0052] like Figure 3 and Figure 11As shown, the wall of the barrel body protrudes outward to form a protrusion 3400, and the cross section of the barrel body has a highest point A located on the upper side, a lowest point B located on the lower side, a first vertex C located on the leftmost side, and a second vertex D located on the rightmost side, as shown in FIG. Figure 7 and Figure 8 As shown, the protrusion 3400 has a first edge 3401 and a second edge 3402 connected to the barrel body. Figure 3 As shown, the axial projection E of the first edge 3401 coincides with the lowest point B, and the axial projection F of the second edge 3402 is located between the lowest point B and the first vertex C, or between the lowest point B and the second vertex D. Here, "left" and "right" refer to Figure 11 In the illustrated embodiment, where the second washing tub 3000 is positioned at the upper right corner of the first washing tub 4000, the axial projection F of the second edge 3402 is located between the lowest point B and the second vertex D. That is, the protrusion 3400 is located on the side of the axial cross-section of the second washing tub 3000 (the rectangular cross-section containing points A and B) away from the first washing tub 4000. The cross-section of the protrusion 3400 can have a square structure. The drain pipe 3320 and the socket 3331 are spaced apart in the longitudinal direction, with the drain pipe 3320 closer to the first edge 3401. This ensures that the drain pipe 3320 is located at the lowest point, allowing all water to drain and preventing residual moisture.

[0053] In order to ensure that the first washing tub 4000 is effectively avoided and the interval between the two washing tubs is minimized, the occupied volume of the box 1000 is reduced. Figure 3 As shown, the rotational axes of the first washing tub 4000 and the second washing tub 3000 are arranged parallel to each other. A minimum distance d1 exists between the outer peripheral walls of the first washing tub 4000 and the outer peripheral walls of the second washing tub 3000. The distance between the center Q1 of the first washing tub 4000 and the center Q2 of the second washing tub 3000 in the direction of the connecting line is d2, where 15 mm ≤ d1 ≤ 25 mm, and 35 mm ≤ d2 ≤ 45 mm. Because the distance between the lowest point of the protrusion 3400 and the first washing tub 4000 is the minimum, here referred to as the minimum distance d1, the distance between the second washing tub 3000 and the first washing tub 4000 in the direction of the connecting line is d2. Preferably, d1 can be 20 mm and d2 can be 40 mm, which meets the dimensional requirements of the standard washing tub 1000 while preventing vibrations from the first washing tub 4000 from being transmitted to the second washing tub 3000.

[0054] In the scheme that only considers how to improve drainage efficiency, such as Figure 14As shown, a washing drum is provided, which has an open end 3001 at the front and a closed end 3002 at the rear. The closed end 3002 is provided with an opening 3005. The opening 3005 can be used to mount the aforementioned mounting seat 3300, or it can be designed as a drain outlet. To guide water within the washing drum to the location of the opening 3005, the inner circumferential wall of the washing drum is provided with a guide portion 3003 extending toward the opening 3005. The washing drum herein can be the washing drum of a single-drum washing machine, or the washing drum of a twin-drum washing machine having an inner drum 3200 and an outer drum 3100. In the latter embodiment, the guide portion 3003 can be provided on the inner circumferential wall of the outer drum 3100. The latter embodiment will be described in detail below using the latter as an example. The guide portion 3003 can be a guide groove, a guide slope, or other structures. Any structure capable of guiding water to the drain outlet 3004 falls within the scope of protection of the present disclosure. The junction between the guide portion 3003 and the protruding portion 3400 is the lowest point of the cylinder body.

[0055] In the washing drum provided by the present invention, the guide part 3003 can optimize the water flow path, reduce vortices and dead corners of water flow, make drainage smoother, and allow water to be discharged from the washing drum faster, thereby improving dehydration efficiency, avoiding accumulation of water inside the outer drum, keeping the washing equipment clean and hygienic, and reducing the frequency of maintenance and cleaning.

[0056] In the embodiment where the inner peripheral wall of the washing tub protrudes radially outward to form the protrusion 3400, as shown in FIG. Figure 14 As shown, the guide portion 3003 extends from the open end 3001 to the closed end 3002 along the axial direction of the second washing tub 3000 and is connected to the inner cavity of the protrusion 3400. During the drainage process, the water in the washing tub can be guided to the inner cavity of the protrusion 3400 and discharged outward through the drain pipe 3320.

[0057] The protrusion 3400 is positioned near the closed end 3002, and the guide portion 3003 is circumferentially disposed on one side of the protrusion 3400. The staggered arrangement of the two prevents the directed water from directly impacting the fixed portion 3330 and the heater. The guide portion 3003 also facilitates demolding during injection molding of the washing tub.

[0058] The guide portion 3003 may be an arc-shaped guiding slope, and the circumferential width of the arc-shaped guiding slope gradually increases from the open end 3001 to the closed end 3002. The shape and size of the guiding slope may be limited as needed. Figure 10 and Figure 14 As shown, the circumferential notch 3111 of the inner wall of the drum body is formed as a guide portion 3003. The notch 3111 here can be integrally formed by injection molding during the washing drum molding process, or can be formed separately by later processing, both of which fall within the scope of protection of the present disclosure.

[0059] In the present disclosure, the drum body includes an inner drum 3200 and an outer drum 3100. The inner drum 3200 is rotatably arranged inside the outer drum 3100. The inner cavity of the inner drum 3200 forms a washing cavity. The inner drum 3200 is provided with a plurality of through holes to connect the washing cavity and the inner cavity of the outer drum 3100. The guide portion 3003 and the protrusion 3400 are arranged on the outer peripheral wall of the outer drum 3100 to solve the problem of water accumulation and poor drainage between the inner drum 3200 and the outer drum 3100.

[0060] In addition, in this disclosure, Figure 15 As shown, the drain outlet of the first washing tub 4000 is connected to a first drain pipe 5100, which is equipped with a water pump 5200. The drain pipe 3320 of the second washing tub 3000 is connected to a water valve 5400. Both the water valve 5400 and the first drain pipe 5100 are connected to a drain box 5500. The drainage from the first washing tub 4000 and the second washing tub 3000 is mixed in the drain box 5500 and then discharged outward through the main drain pipe 5300. This can save on piping layout and reduce occupied space. In other embodiments, the water in the first drain pipe 5100 and the water in the drain pipe 3320 can be discharged outward separately, which is also within the scope of protection of this disclosure.

[0061] In the embodiment where the water discharged from the first washing tub 4000 and the second washing tub 3000 is mixed and discharged outward, the structure of the drainage box 5500 is designed to prevent the drainage between the two washing tubs from flowing back into each other. Figure 16 As described above, the drainage box 5500 includes a first cover 5510 and a second cover 5520 that are buckled together. Figure 17 and Figure 18 As shown, the first cover 5510 is provided with a water outlet 5511, and the main drain pipe 5300 can be connected to the water outlet 5511, as shown in FIG. Figures 19 to 21 As shown, the second cover 5520 is provided with a first water inlet 5521 and a second water inlet 5522, which are connected to the water valve 5400 and the first drain pipe 5100 respectively. The inner cavity of the drain box 5500 has a tortuous flow path. The drainage in the first washing tub 4000 enters the drain box 5500 through the second water inlet 5522 and the tortuous flow path, and is discharged from the water outlet 5511 and the main drain pipe 5300 (as shown in FIG. Figure 21The drain water in the second washing tub 3000 flows outwards (as indicated by the arrow in the middle). Drain water in the second washing tub 3000 passes through the water valve 5400, enters the drain box 5500 through the first water inlet 5521, and then directly enters the main drain pipe 5300 through the water outlet 5511 for external discharge. In this embodiment, the water valve 5400 is controlled to prevent water from the first washing tub 4000 from flowing into the second washing tub 3000. The drain box 5500 has a U-shaped flow channel. When the drain water in the second washing tub 3000 flows back into one of the vertical sections of the U-shaped flow channel and reaches a certain water level, the alarm on the second washing tub 3000 will sound an alarm, reminding the user to take timely action to prevent the drain water in the second washing tub 3000 from entering the first washing tub 4000.

[0062] In the present disclosure, the drainage box 5500 can be fixed on the inner wall of the box body 1000, a reinforcement 7100 is provided in the box body 1000, the water valve 5400 can be fixed on the reinforcement, the water in the second washing drum 3000 is drained to the water valve 5400, the water valve 5400 connects the water pipe to the drainage box 5500, the drainage box 5500 is connected to the main drain pipe 5300, and the sewage in the second washing drum 3000 is discharged to the outside of the machine, completing the drainage process of the second washing drum 3000.

[0063] In the foregoing detailed description, reference is made to the accompanying drawings, which illustrate, by way of illustration, specific aspects of the present disclosure in which it may be practiced. In this regard, terms indicating directions or expressing positional relationships, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc., may be used with reference to the orientation of the figures being described. Since the components of the described devices may be positioned in a plurality of different orientations, the directional terms may be used for illustrative purposes rather than restrictive. It should be understood that other aspects may be utilized and structural or logical changes may be made without departing from the concepts of the present disclosure. Therefore, the following detailed description should not be taken in a limiting sense.

[0064] It should be understood that, unless otherwise specifically noted, the features of the various embodiments of the present disclosure described herein may be combined with each other. As used herein, the term "and / or" includes any one of the relevant listed items and any combination of any two or more thereof; similarly, "at least one of" includes any one of the relevant listed items and any combination of any two or more thereof.

[0065] It should be understood that, unless otherwise expressly specified or limited, the terms "join," "attach," "install," "connect," "connect," "fix," etc. used in the embodiments of the present disclosure should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrated; they can be mechanically connected, electrically connected, or communicable with each other; they can be directly connected, or indirectly connected through an intermediate medium, and they can be internally connected between two elements or an interactive relationship between two elements, unless otherwise expressly limited. For those skilled in the art, the specific meanings of the above terms in this article can be understood according to specific circumstances.

[0066] Additionally, the term "over" as used in reference to a component, element, or material layer being formed "over" or located "over" a surface may be used herein to mean that the component, element, or material layer is "indirectly" positioned (e.g., placed, formed, deposited, etc.) on the surface such that one or more additional components, elements, or layers are disposed between the surface and the component, element, or material layer. However, the term "over" as used in reference to a component, element, or material layer being formed "over" or located "over" a surface may alternatively have a specific meaning: the component, element, or material layer is "directly" positioned (e.g., placed, formed, deposited, etc.) on the surface, e.g., in direct contact with the surface.

[0067] Although terms such as "first", "second" and "third" may be used herein to describe various components, parts, regions, layers or sections, these components, parts, regions, layers or sections are not limited to these terms. On the contrary, these terms are only used to distinguish one component, part, region, layer or section from another component, part, region, layer or section. Therefore, without departing from the teachings of each example, the first component, part, region, layer or section mentioned in the examples described herein may also be referred to as the second component, part, region, layer or section. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" can explicitly or implicitly include at least one such feature. In the description herein, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0068] It should be understood that spatially relative terms, such as "above," "upper," "below," and "lower," are used herein to describe the relationship of one element to another element shown in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, an element described as being "above" or "upper" relative to another element would then be "below" or "lower" relative to the other element. Thus, the term "above" encompasses both above and below orientations, depending on the spatial orientation of the device. The device may be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatially relative terms used herein should be interpreted accordingly.

[0069] Furthermore, the word "exemplary" is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be construed as advantageous over other aspects or designs. Rather, the use of the word exemplary is intended to present concepts in a concrete manner. As used herein, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or." That is, unless otherwise specified or clear from the context, "X applies to A or B" is intended to mean any of the natural inclusive permutations. That is, if X applies to A; X applies to B; or X applies to both A and B, then "X applies to A or B" satisfies any of the aforementioned instances. Furthermore, the articles "a" and "an," as used in this application and the appended claims, are generally understood to mean "one or more," unless otherwise specified or clear from the context to refer to the singular form.

[0070] Likewise, although the present disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art upon reading and understanding this specification and the accompanying drawings. The present disclosure includes all such modifications and variations and is limited only by the scope of the claims. With particular regard to the various functions performed by the components described above (e.g., elements, resources, etc.), unless otherwise indicated, terms used to describe such components are intended to correspond to any component (functionally equivalent) that performs the specific function of the described component, even if not structurally equivalent to the disclosed structure. In addition, although particular features of the present disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations as may be desired and advantageous for any given or particular application. Furthermore, to the extent that the terms "include," "have," "have," "have," or variations thereof are used in the detailed description or claims, such terms are intended to be inclusive in a manner similar to the term "comprising."

[0071] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

[0072] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A washing drum, characterized in that: It includes a barrel body, and a protrusion protruding radially outward is provided on the outer peripheral wall of the barrel body, and the inner cavity of the protrusion is connected with the washing cavity of the barrel body, wherein the protrusion is at least partially arranged on the first side of the lowest point of the barrel body and is arranged obliquely, and the first side is the side of the washing barrel away from the object to be avoided.

2. The washing tub according to claim 1, wherein: The cross-section of the barrel body has a highest point A on the upper side, a lowest point B on the lower side, a first vertex C on the leftmost side, and a second vertex D on the rightmost side. The protrusion has a first edge and a second edge connected to the barrel body. The axial projection point E of the first edge coincides with the lowest point B, and the axial projection point F of the second edge is located between the lowest point B and the first vertex C, or between the lowest point B and the second vertex D.

3. The washing tub according to claim 1, wherein: The barrel body has an open end at the front and a closed end at the rear, the protrusion is arranged close to the closed end, and a drain port is provided on the rear end surface of the protrusion.

4. The washing tub according to claim 3, characterized in that: The drain port is located at the lowest point of the protrusion.

5. The washing tub according to claim 3, characterized in that: The inner peripheral wall of the washing tub is provided with a flow guide portion extending toward the drain outlet.

6. The washing tub according to claim 5, characterized in that The junction position of the guide portion and the protruding portion is the lowest point of the cylinder body.

7. The washing tub according to claim 5, characterized in that The guide portion is an arc-shaped guiding slope, and the circumferential width of the arc-shaped guiding slope gradually increases from the open end to the closed end.

8. The washing tub according to claim 5, characterized in that: The notch on the circumferential direction of the inner circumferential wall of the cylinder body forms the flow guide portion.

9. The washing tub according to claim 3, wherein: A mounting seat is provided at the opening at the rear end of the protrusion, and the mounting seat is integrated with the drain port and the fixing portion for inserting the heater. The drain port is arranged near the first edge of the protrusion, and the fixing portion is arranged near the second edge of the protrusion.

10. The washing tub according to claim 9, characterized in that The drain outlet is connected to a drain pipe, the seat body of the mounting seat has an inner surface and an outer surface, the drain pipe is arranged on the outer surface for communicating with the outside world, the fixing part is arranged on the inner surface and extends in the opposite direction of the drain pipe, and the heater in the fixing part can heat the liquid in the inner cavity of the protrusion.

11. The washing tub according to claim 9, characterized in that The protruding portion extends in the axial direction, and a length of the protruding portion in the axial direction is greater than a length of the fixing portion.

12. The washing tub according to claim 1, wherein The barrel body includes an inner barrel and an outer barrel. The inner barrel is rotatably arranged inside the outer barrel. The inner cavity of the inner barrel forms a washing cavity. The inner barrel is provided with a plurality of through holes to connect the washing cavity and the inner cavity of the outer barrel. The protrusion is provided on the outer peripheral wall of the outer barrel.

13. A washing device, characterized in that: The washing drum comprises the washing drum according to any one of claims 1 to 12.

14. The washing device according to claim 13, characterized in that The washing equipment includes a box body and a first washing drum and a second washing drum arranged in the inner cavity of the box body, the first washing drum is arranged in the middle of the inner cavity of the box body, the second washing drum is arranged at the upper right corner or the upper left corner of the first washing drum, and the protrusion of the second washing drum is arranged on the side of the axial section of the second washing drum away from the first washing drum.

15. The washing device according to claim 14, characterized in that The rotation axes of the first washing tub and the second washing tub are arranged in parallel, and there is a minimum distance d1 between the outer peripheral wall of the first washing tub and the outer peripheral wall of the second washing tub. The distance between the first washing tub and the second washing tub in the direction of the center line is d2, wherein 15mm≤d1≤25mm, 35mm≤d2≤45mm.

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