Pulsator washing machine

Abstract

The application discloses a pulsator washing machine, which comprises a box body, a drum assembly and a water channel cover plate. The drum assembly comprises an outer drum arranged in the box body and an inner drum arranged in the outer drum. The water channel cover plate is arranged on the inner circumferential wall of the inner drum and forms an installation chamber together with the inner circumferential wall. The bottom of the installation chamber is provided with a water inlet communicated with the bottom of the inner drum. The water channel cover plate is recessed towards the inner circumferential wall of the inner drum to form a first recessed cavity. The first recessed cavity is arranged in the installation chamber and is provided with a filter. The water channel cover plate is further provided with a fountain opening communicated with the installation chamber above the first recessed cavity. The water channel cover plate is further provided with a dropping opening communicated with the water storage cavity above the fountain opening. The dropping opening is provided with a cover to open or close the dropping opening. The application can simultaneously arrange the filter, the fountain opening and the dropping opening on one water channel cover plate, thereby optimizing the production process and improving the capacity of the inner drum.

Description

Technical Field

[0001] This disclosure belongs to the field of household appliance technology, specifically relating to a pulsator washing machine. Background Technology

[0002] To filter out impurities such as lint from the washing water, washing machines typically have filters inside the drum. To improve washing performance, the drum also has a fountain nozzle that sprays the washing water into the drum like a waterfall to rinse the clothes. To prevent detergent from being directly added to the drum and coming into direct contact with the clothes, thus reducing damage, the drum also has a dispensing spout for adding detergent between the inner and outer drums. The detergent is then diluted with the washing water before flowing into the inner drum.

[0003] Most washing machines currently available feature a single filter, a single fountain, a combination of filter and fountain, or a combination of filter and dispensing. The filter, fountain nozzle, and dispensing inlet are each located on a separate water channel cover, or two of them are located on the same water channel cover. If a single washing machine needs to perform all three functions simultaneously, at least two water channel covers are required, which increases the number of manufacturing steps and production costs, and reduces the capacity of the inner tub. Summary of the Invention

[0004] The purpose of this disclosure is to provide a pulsator washing machine that can simultaneously install a filter, a fountain nozzle, and a dispensing port on a single water channel cover, thereby optimizing the manufacturing process and increasing the inner tub capacity.

[0005] This application discloses a pulsator washing machine, comprising: a cabinet; a tub assembly including an outer tub disposed within the cabinet and an inner tub disposed within the outer tub, wherein a water-receiving cavity for accommodating washing water is formed between the outer peripheral wall of the inner tub and the inner peripheral wall of the outer tub, and the water-receiving cavity communicates with the interior of the inner tub; a water channel cover plate, the water channel cover plate covering the inner peripheral wall of the inner tub and enclosing it to form an installation chamber, wherein a water inlet communicating with the bottom of the installation chamber is formed at the bottom of the installation chamber; the water channel cover plate is recessed toward the inner peripheral wall of the inner tub to form a first recessed cavity, the first recessed cavity being located within the inner peripheral wall of the outer tub. Inside the installation chamber, the bottom of the first recess is open and communicates with the water inlet. A filter element is provided in the first recess, and some washing water is discharged into the inner tub after being filtered by the filter element from the water inlet. A fountain outlet communicating with the installation chamber is also provided on the water channel cover plate above the first recess. Some washing water is sprayed into the inner tub from the water inlet through the installation chamber to the fountain outlet. A dispensing port communicating with the water holding chamber is also provided on the water channel cover plate above the fountain outlet. The dispensing port is provided with a flip cover to open or close the dispensing port.

[0006] In one exemplary embodiment of this disclosure, the portion of the water channel cover above the fountain nozzle is recessed toward the inner peripheral wall of the inner tub to form a second cavity. The bottom wall of the second cavity is formed by the water channel cover extending toward the inner peripheral wall of the inner tub and separating the fountain nozzle and the dispensing port in the installation chamber. A through hole is provided on the side wall of the second cavity away from the dispensing port, and the through hole extends into the water-containing cavity so that detergent can enter the water-containing cavity from the dispensing port along the bottom wall of the second cavity.

[0007] In one exemplary embodiment of this disclosure, the lower left and right sides of the flap are hinged to the left and right side walls of the second recess to enable the flap to rotate; a limiting rib is also provided on the lower part of the side of the flap facing away from the inner wall of the inner barrel. When the flap rotates to a preset angle, the limiting rib abuts against the edge of the bottom wall of the second recess to restrict the rotation of the flap.

[0008] In one exemplary embodiment of this disclosure, the bottom wall of the second cavity is inclined downward in the direction toward the inner peripheral wall of the inner barrel.

[0009] In one exemplary embodiment of this disclosure, the filter element is detachably housed in the first recess. The filter element includes a front filter cover and a rear filter cover, which together form a filter cavity with a bottom opening. The front filter cover has a plurality of filter holes that connect the filter cavity to the inside of the inner tub. A baffle is provided at the bottom opening of the filter cavity to limit the flow rate of washing water returning from the filter cavity to the water inlet.

[0010] In one exemplary embodiment of this disclosure, one end of the bottom of the front filter cover and the rear filter cover is hinged by a pivot, so that the front filter cover can rotate relative to the rear filter cover.

[0011] In one exemplary embodiment of this disclosure, the top of the first cavity is recessed upward to form a recess, and the top of the filter element is provided with a protrusion that matches the recess. The protrusion is elastic in the vertical direction so as to be elastically confined within the recess.

[0012] In one exemplary embodiment of this disclosure, guide plates are provided on both the left and right sides of the bottom opening of the first concave cavity. The guide plates extend vertically to the water inlet of the mounting chamber, and a water inlet channel through the first concave cavity is formed between the two guide plates. Water inlet channels through the fountain outlet are formed between the two guide plates and the left and right side walls of the mounting chamber, respectively.

[0013] In one exemplary embodiment of this disclosure, the installation chamber is further provided with two guide ramps distributed in the left-right direction below the fountain outlet. The opposite ends of the two guide ramps are connected, and the ends of the two guide ramps facing away from each other are inclined downward to guide the washing water into the fountain outlet.

[0014] In one exemplary embodiment of this disclosure, a pulsator is rotatably provided at the bottom of the inner tub, the pulsator has a gap with the bottom of the inner tub, and the water inlet communicates with the gap between the pulsator and the inner tub, and the washing water enters the water inlet under the centrifugal action of the pulsator.

[0015] The proposed solution has the following beneficial effects:

[0016] In this application, an installation chamber is formed by enclosing the inner tub with a water channel cover plate and the inner peripheral wall of the inner tub. A first recess is provided in the installation chamber to filter the washing water by installing a filter element in the first recess. A fountain nozzle is provided above the first recess in the installation chamber, and a dispensing port is provided above the fountain nozzle. This realizes the functions of spraying washing water into the inner tub to rinse clothes and dispensing detergent from the dispensing port. In this way, the filtering, fountain and dispensing functions are all set on a water channel cover plate, reducing the number of water channel cover plates required, optimizing the production process and increasing the capacity of the inner tub.

[0017] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0020] Figure 1 This is a schematic diagram of the internal structure of the pulsator washing machine according to this embodiment.

[0021] Figure 2 for Figure 1 Top view.

[0022] Figure 3 for Figure 2 A cross-sectional view along the AA direction.

[0023] Figure 4 This is a structural schematic diagram of the waterway cover plate according to this embodiment.

[0024] Figure 5 for Figure 4 Cross-sectional view along the BB direction.

[0025] Figure 6 This is a schematic diagram of the structure of the waterway cover plate according to this embodiment, from the rear side.

[0026] Figure 7 This is a partial structural schematic diagram of the waterway cover plate according to this embodiment.

[0027] Figure 8 This is a schematic diagram of the filter element according to this embodiment.

[0028] Figure 9 This is a schematic diagram of the filter element when it is opened according to this embodiment.

[0029] Figure 10 This is a schematic diagram of the flip cover structure according to this embodiment.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Tank assembly; 2. Outer tank; 21. Water-containing cavity; 3. Inner tank; 31. Impeller; 4. Waterway cover; 41. Inlet; 42. First concave cavity; 421. Recess; 422. Guide plate; 43. Filter element; 431. Front cover of filter; 432. Rear cover of filter; 433. Filter hole; 434. Baffle; 435. Protrusion; 44. Fountain nozzle; 45. Dispensing port; 46. Flip cover; 47. Second concave cavity; 471. Bottom wall; 48. Guide ramp; 49. Positioning post. Detailed Implementation

[0032] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art.

[0033] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0034] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present application, and should not be construed as limiting the present application.

[0035] Most current washing machines feature a single filter, a single fountain, a combination of filter and fountain, or a combination of filter and dispensing. The filter, fountain nozzle, and dispensing inlet are each housed on a separate water channel cover, or two of them are housed on the same cover. If a single washing machine needs to perform all three functions simultaneously, at least two water channel covers are required, increasing the number of manufacturing steps and production costs, and reducing the inner drum capacity. To address these issues, this application proposes a pulsator washing machine.

[0036] Figure 1 This is a schematic diagram of the internal structure of the pulsator washing machine according to this embodiment. Figure 2 for Figure 1 Top view. Figure 3 for Figure 2 A cross-sectional view along the AA direction.

[0037] See Figures 1 to 3 A pulsator washing machine includes a cabinet, a tub assembly 1, and a water channel cover 4. The cabinet can be an integral external structure of the washing machine, and is hollow, housing other components such as circuitry, a drive mechanism, and a drainage system. The cabinet can be a hollow cuboid or a hollow cylinder, but is not limited to these shapes.

[0038] The tub assembly 1 is installed inside the cabinet for washing clothes. The tub assembly has a washing chamber, and clothes are put into the washing chamber through the clothes inlet on the tub assembly for washing. Correspondingly, the cabinet is provided with a door, which is set in relation to the clothes inlet. The door is used to close the clothes inlet of the tub assembly during washing, so that the washing chamber is a sealed space during washing. A glass door can also be provided on the door to facilitate observation of the washing process.

[0039] The tub assembly 1 may include an outer tub 2 and an inner tub 3. The inner tub 3 is hollow to form a washing chamber. The inner tub 3 is disposed inside the outer tub 2, and the outer tub 2 is disposed inside the casing. There is a water-receiving cavity 21 for holding washing water between the inner peripheral wall of the outer tub 2 and the outer peripheral wall of the inner tub 3. An opening is provided on the peripheral wall of the inner tub 3. The inner tub 3 communicates with the water-receiving cavity 21 through the opening. The inner tub 3 can discharge washing water into the water-receiving cavity 21 through the opening. The washing water is discharged from the washing machine through a drainage structure connected to the outer tub 2.

[0040] The bottom of the inner tub 3 is also equipped with a pulsator 31 that rotates. The pulsator 31 has a gap with the bottom of the inner tub 3. The pulsator 31 rotates to agitate the washing water in the inner tub 3 and cause the clothes to tumble up and down to wash the clothes. During the rotation, centrifugal force is generated, causing the washing water to tumble up and down.

[0041] Figure 4 This is a structural schematic diagram of the waterway cover plate according to this embodiment. Figure 5 for Figure 4 Cross-sectional view along the BB direction. Figure 6 This is a schematic diagram of the structure of the waterway cover plate according to this embodiment, from the rear side. Figure 7 This is a partial structural schematic diagram of the waterway cover plate according to this embodiment.

[0042] See also Figures 4 to 7 The waterway cover 4 is used to mount the filter element 43, fountain nozzle 44, and dispensing port 45, thus integrating the three functions of filtration, fountaining, and dispensing onto a single waterway cover 4. The waterway cover 4 covers the inner wall of the inner barrel 3, forming an installation chamber. The left and right sides of the waterway cover 4 can be bent towards the inner wall of the inner barrel 3 to form the left and right inner walls of the installation chamber, or the waterway cover 4 can be an arc-shaped plate with a protrusion in the middle, and the left and right sides connecting to the inner wall of the inner barrel 3. Positioning posts 49 are provided on the left and right sides of the bottom of the waterway cover 4, which are used to assemble it to the bottom of the inner barrel 3. The middle and upper parts of the waterway cover 4 also have snap-fit ​​structures and screw posts for fixed connection with the inner wall of the inner barrel 3. A balance ring is also provided at the top of the inner barrel, which is clearance-fitted with the top of the waterway cover. The bottom of the installation chamber has a water inlet 41 that communicates with the bottom of the inner tub 3. The water inlet 41 connects the gap between the impeller and the inner tub. The washing water enters the water inlet 41 under the centrifugal action of the impeller 31, which drives the washing water to rise in the installation chamber. Impurities in the washing water also rise with it.

[0043] The water channel cover 4 is recessed towards the inner peripheral wall of the inner tub 3 to form a first cavity 42. The first cavity 42 is located in the installation chamber. The bottom of the first cavity 42 is open and communicates with the water inlet 41. A filter element 43 is provided in the first cavity 42. Under the action of the impeller 31, the washing water is thrown into the installation chamber from the water inlet 41. Some of the washing water reaches the filter element 43 in the first cavity 42 through the water inlet 41. After the filter element 43 filters the impurities, it is discharged into the inner tub 3, thus completing the filtration of impurities. The impurities can be lint, paper scraps, etc.

[0044] Specifically, the filter element 43 is detachably housed in the first recess 42, so that after a period of operation, when it is necessary to clean the impurities inside the filter element 43, it can be easily disassembled, the impurities removed, and the cleaned filter element 43 reinstalled in the first recess 42. The top of the first recess 42 is recessed upwards to form a recess 421, and the top of the filter element 43 has a protrusion 435 that matches the recess 421. The protrusion 435 is vertically elastic, allowing it to be elastically confined within the recess 421. During disassembly, the protrusion 435 is pressed downwards to disengage it from the recess 421, thereby removing the filter element 43. During installation, the elasticity of the protrusion 435 presses firmly against the recess 421, thus confining it within the recess. Understandably, the overall size of the filter element 43 matches the size of the first cavity 42, and the two can be tightly fitted together to cooperate with the limiting of the protrusion 435 and the recess 421 so that the filter element 43 can be firmly installed in the first cavity 42. In addition, the bottom of the first cavity 42, apart from the opening area, also has a structure for supporting the filter element 43 to prevent the filter element 43 from falling out of the opening of the first cavity 42.

[0045] Figure 8 This is a schematic diagram of the filter element according to this embodiment. Figure 9 This is a schematic diagram of the filter element when it is opened according to this embodiment.

[0046] For further details, please refer to [link / reference]. Figure 8 and Figure 9 The filter element 43 includes a front filter cover 431 and a rear filter cover 432, which together form a filter chamber with an open bottom. Washing water enters the filter chamber from the inlet 41 through the bottom opening of the first recess 42 to filter impurities. The front filter cover 431 has multiple filter holes 433, which connect the filter chamber to the inside of the inner tub 3. Filtered washing water returns to the inner tub 3 through the filter holes 433, while impurities are blocked by the filter holes 433 and retained in the filter chamber. The size of the filter holes 433 can be determined according to the size of the impurities and is not limited here.

[0047] Understandably, a baffle 434 is provided at the bottom opening of the filter chamber. The baffle 434 is used to limit the flow rate of washing water returning from the filter chamber to the inlet 41, so that more washing water entering the filter chamber for filtration is discharged into the inner tub 3 through the filter holes 433, retaining more impurities in the filter chamber and reducing the amount of impurities returning from the bottom opening of the filter chamber to the inlet 41. The baffle 434 can be spaced apart from the front cover 431 or the rear cover 432 in the filter direction, so that there is a certain gap between them. Washing water enters the filter chamber through this gap, while most impurities are deposited on the baffle 434. The baffle 434 can also be rotatably connected to the front cover 431 or the rear cover 432 to adjust the size of the gap, thereby controlling the water intake efficiency and the impurity retention rate.

[0048] The bottom ends of the front filter cover 431 and the rear filter cover 432 are hinged by a pivot, allowing the front filter cover 431 to rotate relative to the rear filter cover 432. When removing the filter element 43 to clean impurities, rotating the front filter cover 431 opens the filter chamber, facilitating direct cleaning of impurities. Grooves and matching elastic clips are also provided on the upper left and right sides of the front filter cover 431 and the rear filter cover 432. The elastic clips engage with the grooves to lock the front filter cover 431 and the rear filter cover 432. When it is necessary to open the filter chamber, pressing the elastic clips disengages them from the grooves.

[0049] For example, a fountain nozzle 44 communicating with the installation chamber is also provided on the water channel cover plate 4 above the first concave cavity 42. Under the action of the impeller 31, the washing water is thrown into the installation chamber from the water inlet 41. Some of the washing water flows from the water inlet 41 through the installation chamber to the fountain nozzle 44 and is then sprayed into the inner tub 3 to form a waterfall fountain, which washes the clothes, improves the washing effect, and makes the clothes cleaner.

[0050] Furthermore, guide plates 422 are provided on both the left and right sides of the bottom opening of the first concave cavity 42. The guide plates 422 extend vertically to the water inlet 41 of the installation chamber, and a water inlet channel is formed between the two guide plates 422, penetrating into the first concave cavity 42. Water inlet channels are also formed between the two guide plates 422 and the left and right side walls of the installation chamber, respectively, penetrating to the fountain nozzle 44. Under the centrifugal action of the impeller 31, the washing water enters the installation chamber through the water inlet 41 and is divided into two paths. Part of the washing water enters the filter chamber through the water inlet channel penetrating into the first concave cavity 42, and the other part of the washing water is sprayed out from the fountain nozzle 44 through the water inlet channel penetrating to the fountain nozzle 44, which can increase the water jet intensity of the fountain nozzle 44 and improve the washing effect.

[0051] Inside the installation chamber, below the fountain nozzle 44, are two guide ramps 48 distributed in a left-right direction. The opposite ends of the two guide ramps 48 are connected, and the ends facing away from each other are inclined downwards to guide the washing water into the fountain nozzle 44. Some of the washing water, after flowing through the water inlet channel to the bottom of the fountain nozzle 44, is guided by the two guide ramps 48 to be directed into the center of the fountain nozzle 44, resulting in a higher water jet intensity and better effect. The two guide ramps 48 can be connected to the top wall of the first recessed cavity 42.

[0052] For example, the water channel cover 4 is also provided with a dispensing port 45 above the fountain outlet 44, which communicates with the water-containing chamber 21. When adding detergent, it can be added into the water-containing chamber 21 through the dispensing port 45. After being diluted by the washing water in the water-containing chamber 21, it enters the inner tub 3 sequentially through the opening on the inner tub 3, avoiding direct contact between the detergent and the laundry and reducing damage to the laundry. At the same time, a flip-top 46 is also provided at the dispensing port 45 to open or close the dispensing port 45. After the dispensing port 45 is opened by the flip-top 46, detergent can be added. After the dispensing port 45 is closed by the flip-top 46, detergent can be prevented from accidentally entering the inner tub 3.

[0053] Specifically, the portion of the water channel cover 4 above the fountain nozzle 44 is recessed towards the inner peripheral wall of the inner tub 3 to form a second cavity 47. The bottom wall 471 of the second cavity 47 extends from the water channel cover 4 towards the inner peripheral wall of the inner tub 3, separating the fountain nozzle 44 and the dispensing port 45 in the installation chamber to prevent the washing water in the fountain nozzle 44 from re-entering the dispensing port 45. A through hole is provided on the side wall of the second cavity 47 away from the dispensing port 45, extending through to the water-containing cavity 21. The dispensing port 45, the bottom wall 471 of the second cavity 47, and the through hole form a dispensing channel, allowing detergent to enter the water-containing cavity 21 from the dispensing port 45 along the bottom wall 471 of the second cavity 47, without entering the fountain nozzle 44 or the first cavity 42.

[0054] Figure 10 This is a schematic diagram of the flip cover structure according to this embodiment.

[0055] For further details, please refer to [link / reference]. Figure 10The lower left and right sides of the flip cover 46 are hinged to the left and right side walls of the second recess 47, allowing the flip cover 46 to rotate and thus open or close the dispensing port 45. A limiting rib 461 protrudes from the lower part of the side of the flip cover 46 facing away from the inner wall of the inner tub 3. When the flip cover 46 rotates to a preset angle, the limiting rib 461 abuts against the edge of the bottom wall 471 of the second recess 47 to restrict the rotation of the flip cover 46 and prevent excessive rotation. At this time, the dispensing port 45 is open wide enough for detergent dispensing. The preset angle can be determined according to the required opening range of the dispensing port 45, and can be between 45° and 90°, such as 45°, 60°, and 90°. It can be understood that this preset angle refers to the angle at which the flip cover 46 rotates towards the center of the inner tub 3. When the flip cover 46 closes the dispensing port 45, it can be considered that the flip cover 46 is positioned vertically.

[0056] The bottom wall 471 of the second concave cavity 47 is inclined downwards towards the inner circumferential wall of the inner tub 3. This, in conjunction with the two guide plates 48, concentrates the washing water more towards the fountain nozzle 44, enhancing the water jet effect of the fountain nozzle 44. The downward inclination angle of the bottom wall 471 of the second concave cavity 47 should not be too large when considering the addition of detergent; it can be between 10° and 30°, such as 10°, 20°, and 30°.

[0057] In summary, in this embodiment, an installation chamber is formed by the water channel cover plate 4 and the inner peripheral wall of the inner tub 3. A first recess 42 is provided in the installation chamber to filter the washing water by a filter element 43. A fountain nozzle 44 is provided above the first recess 42 in the installation chamber, and a dispensing port 45 is provided above the fountain nozzle 44. This enables the function of spraying washing water into the inner tub 3 to rinse clothes and dispensing detergent from the dispensing port 45. Thus, the filtration, fountain, and dispensing functions are all set on a single water channel cover plate 4, reducing the number of water channel cover plates 4 required, optimizing the production process, and increasing the capacity of the inner tub.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0059] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0060] In the description of this specification, references to terms such as "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and description of this application should fall within the scope of this patent application.

Claims

1. A pulsator washing machine, characterized in that, include: Box; The tub assembly includes an outer tub disposed within the housing and an inner tub disposed within the outer tub. A water-receiving cavity for holding washing water is provided between the outer peripheral wall of the inner tub and the inner peripheral wall of the outer tub, and the water-receiving cavity communicates with the interior of the inner tub. A water channel cover is provided, which covers and encloses the inner peripheral wall of the inner tub to form an installation chamber. The bottom of the installation chamber has a water inlet communicating with the bottom of the inner tub. The water channel cover is recessed towards the inner peripheral wall of the inner tub to form a first cavity, which is located within the installation chamber. The bottom of the first cavity is open and communicates with the water inlet. A filter element is provided in the first cavity, through which some washing water is filtered and discharged into the inner tub. Above the first cavity, a fountain nozzle communicating with the installation chamber is also provided on the water channel cover. Some washing water flows from the water inlet through the installation chamber to the fountain nozzle and is then sprayed into the inner tub. Above the fountain nozzle, a dispensing port communicating with the water-containing cavity is also provided on the water channel cover. The dispensing port has a flip-top for opening or closing. The portion of the water channel cover above the fountain nozzle is recessed towards the inner peripheral wall of the inner tub to form a second cavity. The bottom wall of the second cavity is formed by the water channel cover extending towards the inner peripheral wall of the inner tub and separating the fountain nozzle and the dispensing port in the installation chamber. A through hole is formed on the side wall of the second cavity away from the dispensing port, and the through hole extends into the water-containing cavity. The dispensing port, the bottom wall of the second cavity, and the through hole form a dispensing channel, so that detergent can enter the water-containing cavity from the dispensing port along the bottom wall of the second cavity.

2. The pulsator washing machine according to claim 1, characterized in that, The lower left and right sides of the flap are hinged to the left and right side walls of the second concave cavity so that the flap can rotate; a limiting rib is also provided on the lower part of the side of the flap facing away from the inner wall of the inner barrel. When the flap rotates to a preset angle, the limiting rib abuts against the bottom wall edge of the second concave cavity to restrict the rotation of the flap.

3. The pulsator washing machine according to claim 1, characterized in that, The bottom wall of the second concave cavity is inclined downward in the direction toward the inner peripheral wall of the inner barrel.

4. The pulsator washing machine according to claim 1, characterized in that, The filter element is detachably housed in the first recessed cavity. The filter element includes a front filter cover and a rear filter cover, which together form a filter cavity with a bottom opening. The front filter cover has multiple filter holes that connect the filter cavity to the inside of the inner tub. A baffle is provided at the bottom opening of the filter cavity to limit the flow rate of washing water returning from the filter cavity to the water inlet.

5. The pulsator washing machine according to claim 4, characterized in that, The bottom ends of the front filter cover and the rear filter cover are hinged by a pivot, so that the front filter cover can rotate relative to the rear filter cover.

6. The pulsator washing machine according to claim 1, characterized in that, The top of the first cavity is recessed upward to form a recess, and the top of the filter element is provided with a protrusion that matches the recess. The protrusion is elastic in the vertical direction so that it can be elastically confined in the recess.

7. The pulsator washing machine according to claim 4, characterized in that, The bottom opening of the first concave cavity is provided with guide plates on both the left and right sides. The guide plates extend vertically to the water inlet of the installation chamber. A water inlet channel is formed between the two guide plates to the first concave cavity. A water inlet channel is formed between the two guide plates and the left and right side walls of the installation chamber to the fountain outlet.

8. The pulsator washing machine according to claim 1, characterized in that, The installation chamber is also provided with two guide ramps distributed in the left and right direction below the fountain outlet. The two guide ramps are connected at opposite ends and the ends of the two guide ramps facing away from each other are inclined downwards to guide the washing water into the fountain outlet.

9. The pulsator washing machine according to claim 1, characterized in that, The bottom of the inner tub is also equipped with a pulsator that rotates, and there is a gap between the pulsator and the bottom of the inner tub. The water inlet is connected to the gap between the pulsator and the inner tub, and the washing water enters the water inlet under the centrifugal action of the pulsator.

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