A pulsator washing machine

Abstract

The application discloses a pulsator washing machine, which comprises a box body and a washing drum. The washing drum is arranged in the box body and comprises an inner drum and an outer drum. The inner drum comprises a pulsator, a stirring column and a filter. The pulsator is arranged at the bottom of the inner drum, and the top of the pulsator is provided with a slot opening upward. The stirring column is provided with a stirring structure, and the bottom end of the stirring column is provided with a plug-in section which is detachably inserted into the slot. The filter is arranged on the stirring column. The outer side wall of the plug-in section is provided with a plurality of first planes which respectively face different directions in the circumferential direction of the plug-in section. The inner side wall of the slot is provided with a plurality of second planes which are arranged in one-to-one correspondence with the first planes. The second planes are in abutting connection with the corresponding first planes to transmit torque between the pulsator and the stirring column. The application can significantly improve the washing effect of the pulsator washing machine and effectively meet the increasing washing requirements of consumers.

Description

Technical Field

[0001] This application relates to the field of washing machine technology, and more particularly to a pulsator washing machine. Background Technology

[0002] In modern family life, top-loading washing machines have become extremely popular household laundry appliances due to their ease of operation and affordable price. Traditional top-loading washing machines mainly remove stains by using the water flow generated by the rotation of the impeller to tumble and rub the clothes. However, the cleaning effect of top-loading washing machines in this technology is not ideal, making it difficult to meet the increasingly sophisticated washing needs of consumers. Utility Model Content

[0003] In view of the above-mentioned shortcomings in the related technologies, this application provides a pulsator washing machine to solve the problem of poor washing effect of pulsator washing machines in the related technologies.

[0004] To address the aforementioned technical problems, in a first aspect, this application provides a pulsator washing machine, which includes:

[0005] Box;

[0006] A washing drum is disposed within the housing. The washing drum includes an inner drum and an outer drum. The inner drum is disposed within the outer drum. The inner drum includes:

[0007] A pulsator, located at the bottom of the inner drum, is used to stir the washing liquid and allow the washing liquid to enter the space between the inner drum and the outer drum from the inner drum. The top of the pulsator is provided with an upward-facing slot.

[0008] A stirring column is provided with a stirring structure. The stirring column can rotate relative to the inner cylinder to stir the washing liquid in the inner cylinder through the stirring structure. The bottom end of the stirring column has a plug-in section, which is detachably inserted into the slot.

[0009] A filter is disposed on the stirring column. The filter has a filter chamber inside. The filter is provided with an inlet and a filter hole communicating with the filter chamber. The inlet is configured to allow the washing liquid and foreign matter to enter the filter chamber. The filter hole is configured to allow the washing liquid to pass through and restrict the passage of foreign matter in order to collect the foreign matter.

[0010] The outer wall of the plug segment has multiple first planes, each facing a different direction in the circumferential direction of the plug segment. The inner wall of the slot has multiple second planes, each corresponding to one of the first planes. The second planes abut against the corresponding first planes to transmit torque between the impeller and the stirring column.

[0011] With this setup, on the one hand, during the washing process, the impeller, stirring column, and stirring structure can all rotate and stir. The rotating impeller, stirring column, and stirring structure can fully drive the washing liquid and the washed clothes to tumble and rub, thereby significantly increasing the friction frequency between the washed clothes and the washing liquid, and thus significantly enhancing the washing power.

[0012] Meanwhile, since the filter is located on the stirring column, and since the stirring column is located on the main flow path of the washing liquid and the washed items in the inner cylinder, when the washing liquid circulates with the rotation of the impeller, stirring column and stirring structure, foreign objects such as lint and fibers will directly enter the filter chamber through the inlet with the washing liquid. Under the action of the filter holes, the filter can efficiently filter and collect foreign objects, which can not only effectively prevent foreign objects from clogging the pipes, but also effectively prevent foreign objects from adhering to the washed items.

[0013] As can be seen from the above description, the combined effect of stirring and filtering not only significantly enhances the washing power, but also effectively prevents foreign objects from adhering to the washed items, thereby significantly improving the washing effect of the pulsator washing machine and effectively meeting the ever-increasing washing needs of consumers.

[0014] On the other hand, firstly, because the abutting fit between the first plane and the corresponding second plane can prevent the insertion section from rotating relative to the slot, it can also prevent the stirring column from rotating relative to the impeller. Thus, when the impeller rotates, the abutting fit between the second plane and the first plane can effectively transmit torque between the impeller and the stirring column, thereby avoiding power loss and improving the efficiency of rotational stirring.

[0015] Secondly, the multiple first and second planes are distributed circumferentially, which can make the torque transmission more balanced, reduce the wobble phenomenon when the stirring column rotates, thereby enhancing the stability of the detachable connection and reducing the noise caused by wobble.

[0016] Optionally, the bottom wall of the slot is provided with a mounting hole that passes through the impeller;

[0017] The inner cylinder also includes:

[0018] A fastener is provided, which passes through the mounting hole and is fixed in the vertical direction relative to the insertion section. The bottom end of the fastener abuts against the bottom of the impeller away from the stirring column to prevent the stirring column from detaching from the impeller in the vertical direction.

[0019] This design, using fasteners, facilitates easy assembly and disassembly between the mixing column and the impeller, while also significantly enhancing the stability of the connection between them through mechanical locking.

[0020] Optionally, a plurality of first planes are arranged circumferentially around the plug segment, and an arc-shaped surface connects any two adjacent first planes.

[0021] The curved surface design can prevent component damage caused by sharp corner impacts, thus extending service life. At the same time, the curved surface can effectively disperse stress concentration at the connection point. Compared with sharp corner transitions, the curved surface can enhance the structural strength of the joint section and reduce the risk of breakage due to long-term use.

[0022] Optionally, the inner wall of the slot extends vertically, and the shape of each horizontal cross-section of the slot in the vertical direction is the same;

[0023] The insertion segment is a column extending in a vertical direction, and the cross-sectional profile of the insertion segment matches the profile of the inner sidewall of the slot.

[0024] With this design, when the plug section is inserted into the slot, regardless of the insertion depth, the first plane of its outer side wall and the second plane of the inner side wall of the slot will always maintain a stable abutment fit, thereby ensuring the reliability and stability of torque transmission between the impeller and the stirring column; at the same time, the regular and matching structural design facilitates the insertion and removal of the stirring column, thereby ensuring its ease of installation and removal.

[0025] Optionally, a positioning post is provided on one of the bottom end of the plug-in section and the bottom wall of the slot, and a positioning hole is provided on the other for the positioning post to be inserted. The positioning post is configured to be inserted into the positioning hole during the installation of the stirring column and the impeller, so as to pre-position the stirring column by guiding the positioning post through the positioning hole.

[0026] This configuration allows the positioning pin and positioning hole to provide precise axial and radial positioning when the plug section is inserted into the slot, avoiding the problem of eccentricity of the stirring column caused by manual installation deviation. This ensures the coaxiality of the impeller and the stirring column, thereby enhancing the stability of the impeller and the stirring column during rotation.

[0027] Optionally, there are multiple positioning holes and multiple mounting holes, and the multiple positioning holes and multiple mounting holes are all spaced apart in different directions in the circumferential direction of the plug segment.

[0028] This configuration allows for positioning and fixing of the stirring column and impeller from multiple angles, thus avoiding potential offsets that may occur when positioning or fixing in a single location. It further ensures the coaxiality and stability of the assembly of the two components, while also ensuring that the first and second planes are always in close contact, guaranteeing the effective transmission of torque.

[0029] Optionally, the stirring column has an internal mounting cavity, and the filter is disposed within the mounting cavity;

[0030] The outer wall of the stirring column is provided with a liquid inlet hole and a liquid outlet hole, both of which are connected to the mounting cavity.

[0031] With this setup, during washing, the washing liquid containing foreign objects can enter the installation cavity through the inlet hole, and after being filtered by the filter, the washing liquid can also be discharged through the drain hole, thus forming a complete filtration path of "water inlet-filtration-drainage", which can ensure that foreign objects are effectively filtered.

[0032] In addition, placing the filter in the mounting cavity inside the agitator column has several advantages. First, it prevents the filter from occupying the washing space in the inner drum, ensuring sufficient washing space and making the pulsator washing machine more compact. Second, it avoids friction between the filter and the laundry, reducing filter wear and extending its lifespan.

[0033] Optionally, the length of the stirring column extends vertically;

[0034] Wherein, the liquid inlet is disposed on the outer wall of the stirring column; and / or,

[0035] The drain hole is located at the bottom of the stirring column, and a water leakage hole is provided on the bottom wall of the slot, which connects to the space between the inner cylinder and the outer cylinder.

[0036] With this configuration, the liquid inlet is located on the outer wall of the stirring column. Since the stirring column extends vertically along its length, the outer wall of the stirring column will be in direct contact with the washing liquid, resulting in a large contact area. Therefore, placing the liquid inlet on the outer wall of the stirring column facilitates the flow of the washing liquid into the mounting cavity.

[0037] With the drain hole located at the bottom of the stirring column, since the length of the stirring column extends vertically, the washing liquid in the installation cavity can be more easily discharged through the drain hole and the water leakage hole into the space between the inner and outer cylinders under the action of gravity, thereby improving the efficiency of washing liquid discharge.

[0038] Optionally, the stirring structure includes stirring blades;

[0039] The stirring blades are spirally arranged on the outer periphery of the stirring column from one end to the other; or,

[0040] The stirring blades extend in the same direction as the stirring column.

[0041] The stirring blades are arranged in a spiral shape on the outer periphery of the stirring column. When the stirring column rotates, the spiral stirring blades will push the washing liquid to generate a three-dimensional vortex that spirals upward or downward in the inner drum. This vortex can cause the washed clothes to make a spiral tumbling motion, which can increase the friction area and frequency between the washed clothes and between the washed clothes and the water flow, making it easier to remove stains.

[0042] Furthermore, because the spiral motion subjectes the washed items to forces in multiple directions during the washing process, it prevents them from tangling and clumping together, thus reducing entanglement and protecting the items. Simultaneously, the spiral motion of the washing liquid, moving closer to the agitator column, makes it easier for the filter to remove impurities from the washing liquid.

[0043] By arranging the stirring blades from one end of the stirring column to the other, the stirring blades can be continuously distributed along the axial direction of the stirring column. This continuous distribution is not only more aesthetically pleasing, but also allows the washing liquid to form a uniform force on the outer periphery of the stirring column, which can avoid excessively strong or weak local forces, thereby improving the uniformity of washing.

[0044] By setting the stirring blades to extend in the same direction as the stirring column, the structure of the stirring blades can be simplified, which facilitates the processing and manufacturing of the stirring blades.

[0045] Optionally, multiple stirring blades are provided, and the multiple stirring blades are evenly and spaced apart around the periphery of the stirring column.

[0046] The evenly distributed and spaced agitator blades can synchronously push the washing liquid from different directions when the agitator column rotates, creating a symmetrical and balanced vortex field in the inner cylinder. This avoids localized water flow turbulence caused by uneven blade distribution, ensuring that all areas of the washed items come into contact with a strong water flow. Additionally, it enhances the aesthetic appeal. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 A cross-sectional view of a pulsator washing machine provided in an embodiment of this application;

[0049] Figure 2 A perspective view of the stirring mechanism provided in the embodiments of this application;

[0050] Figure 3A front view of the stirring mechanism provided in an embodiment of this application;

[0051] Figure 4 A top view of the stirring mechanism provided in an embodiment of this application;

[0052] Figure 5 for Figure 4 Sectional view along the middle AA direction;

[0053] Figure 6 A bottom view of the stirring column and stirring structure provided in the embodiments of this application;

[0054] Figure 7 A schematic diagram of a stirring blade with wavy sections provided for an embodiment of this application;

[0055] Figure 8 A perspective view of the impeller provided in an embodiment of this application;

[0056] Figure 9 A top view of the impeller provided in an embodiment of this application;

[0057] Figure 10 for Figure 9 Sectional view along the BB direction.

[0058] Explanation of reference numerals in the attached figures:

[0059] 1-Outer cylinder;

[0060] 2-Inner cylinder;

[0061] 3-Impeller; 31-Slot; 311-Second plane; 32-Positioning hole; 33-Mounting hole; 34-Drain hole;

[0062] 4-Stirring column; 41-Mounting cavity; 42-Liquid inlet; 43-Liquid outlet; 44-Plug-in section; 441-First plane; 442-Arc-shaped surface; 45-Positioning column; 46-Shielding cover;

[0063] 5-Stirring structure; 51-Stirring blades; 511-Wave section;

[0064] 6-Drive mechanism;

[0065] 7-Filter;

[0066] 8-Box. Detailed Implementation

[0067] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0068] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0069] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0070] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0071] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0072] As described in the background section of this application, in modern family life, top-loading washing machines have become extremely popular household laundry appliances due to their ease of operation and affordable price. Traditional top-loading washing machines mainly remove stains by using the water flow generated by the rotation of the pulsator to tumble and rub the clothes being washed. However, the cleaning effect of top-loading washing machines in related technologies is not good, making it difficult to meet the increasingly higher washing needs of consumers.

[0073] In view of the above-mentioned problems, this application provides a pulsator washing machine to solve the problem of poor washing effect of pulsator washing machines in the related art.

[0074] The technical solution of this application will be further described below with reference to specific embodiments and accompanying drawings:

[0075] In some alternative embodiments, such as Figure 1 As shown, the pulsator washing machine includes a cabinet 8 and a washing drum. The washing drum is disposed inside the cabinet 8 and includes an outer drum 1 and an inner drum 2, wherein the inner drum 2 is disposed inside the outer drum 1.

[0076] With this design, firstly, the cabinet 8 provides stable support and protection for the entire pulsator washing machine, effectively securing the internal components, while also protecting the outer drum 1 and inner drum 2, thus extending the service life of the pulsator washing machine.

[0077] Secondly, the outer drum 1 is installed inside the housing 8. On the one hand, it can bear the force generated by the inner drum 2 during operation and ensure the stable operation of the inner drum 2. On the other hand, the outer drum 1 can store the washing liquid during the washing process, prevent the washing liquid from leaking, and ensure the normal operation of the washing work.

[0078] Finally, the inner drum 2 can be used to hold the washing liquid and the clothes to be washed, providing enough space for washing and ensuring that the washing process is carried out normally.

[0079] In some alternative embodiments, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the inner cylinder 2 includes a pulsator 3, which is located at the bottom of the inner cylinder 2. The pulsator 3 is used to agitate the washing liquid and allow the washing liquid to enter the space between the inner cylinder 2 and the outer cylinder 1. Figure 8 , Figure 9 and Figure 10 As shown, the top of the impeller 3 is provided with an upward-facing slot 31.

[0080] This design effectively agitates the washing liquid through the rotation of the impeller 3, enhancing the tumbling and friction of the washing liquid on the clothes being washed. It also promotes the circulation of the washing liquid between the inner drum 2 and the space between the inner drum 2 and the outer drum 1, forming a circulating water flow. This circulating water flow allows the washing liquid to contact the clothes being washed more evenly, avoiding insufficient washing in certain areas. At the same time, it also ensures that the detergent is fully distributed to all parts of the clothes, improving washing efficiency and effectiveness.

[0081] In some alternative embodiments, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the inner cylinder 2 also includes a stirring column 4, on which a stirring structure 5 is provided. The stirring column 4 can rotate relative to the inner cylinder 2 to stir the washing liquid in the inner cylinder 2 through the stirring structure 5. Figure 5 As shown, the bottom end of the stirring column 4 has a plug section 44, which is detachably inserted into the slot 31.

[0082] With this configuration, on the one hand, during the washing process, the rotating impeller 3, stirring column 4 and stirring structure 5 can fully drive the washing liquid and the washed items to tumble and rub, thereby significantly increasing the friction frequency between the washed items and the washing liquid, and thus significantly enhancing the washing power.

[0083] On the other hand, the detachable plug-in method makes it easy for users to disassemble and assemble the stirring column 4 as needed. For example, when the stirring column 4 or the impeller 3 is damaged, the corresponding parts can be disassembled and replaced separately, which can reduce maintenance costs and improve the convenience of use.

[0084] In some alternative embodiments, such as Figure 1 and Figure 5 As shown, the inner cylinder 2 also includes a filter 7, which is disposed on the stirring column 4. The filter 7 has a filtration chamber inside and is provided with a water inlet and a filter hole communicating with the filtration chamber. The water inlet is configured to allow washing liquid and foreign objects to enter the filtration chamber, and the filter hole is configured to allow washing liquid to pass through while restricting the passage of foreign objects to collect them.

[0085] With this configuration, since the stirring column 4 is located on the main flow path of the washing liquid and the washed items in the inner cylinder 2, when the washing liquid circulates with the rotation of the impeller 3, stirring column 4 and stirring structure 5, foreign objects such as lint and fibers will directly enter the filter chamber through the inlet with the washing liquid. Under the action of the filter holes, the filter 7 can efficiently filter and collect foreign objects. This not only effectively prevents foreign objects from clogging the pipes, but also effectively prevents foreign objects from adhering to the washed items, which is conducive to improving the washing effect.

[0086] In some alternative embodiments, such as Figure 6 As shown, the outer wall of the insertion segment 44 has a plurality of first planes 441, which face different directions in the circumferential direction of the insertion segment 44. Figure 8 and Figure 9 As shown, the inner wall of the slot 31 has a plurality of second planes 311, which are arranged in a one-to-one correspondence with a plurality of first planes 441. The second planes 311 abut against the corresponding first planes 441 to transmit torque between the impeller 3 and the stirring column 4.

[0087] With this configuration, firstly, since the torque exerted by the slot 31 on the insertion section 44 when the impeller 3 rotates will be around the circumference of the insertion section 44, by setting multiple first planes 441 facing different directions around the circumference of the insertion section 44, at least some of the first planes 441 can receive the torque from the slot 31 through the abutting engagement of the first planes 441 with the corresponding second planes 311, thereby preventing the insertion section 44 from rotating relative to the slot 31. Therefore, it can also prevent the stirring column 4 from rotating relative to the impeller 3. Thus, when the impeller 3 rotates, the torque can be effectively transmitted between the impeller 3 and the stirring column 4 through the abutting engagement of the second planes 311 and the first planes 441, thereby avoiding power loss and improving the efficiency of rotation and stirring.

[0088] Secondly, multiple first planes 441 and second planes 311 are distributed at different positions in the circumferential direction. When the impeller 3 rotates, it can apply torque to multiple first planes 441 at the same time, making the torque transmission more balanced, reducing the sway phenomenon when the stirring column 4 rotates, thereby enhancing the stability of the detachable connection and reducing the noise caused by sway.

[0089] In some alternative embodiments, such as Figure 1 As shown, the pulsator washing machine includes a cabinet 8 and a washing drum. The washing drum is disposed inside the cabinet 8 and includes an outer drum 1 and an inner drum 2, wherein the inner drum 2 is disposed inside the outer drum 1.

[0090] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the inner cylinder 2 includes a pulsator 3, which is located at the bottom of the inner cylinder 2. The pulsator 3 is used to agitate the washing liquid and allow the washing liquid to enter the space between the inner cylinder 2 and the outer cylinder 1. Figure 8 , Figure 9 and Figure 10 As shown, the top of the impeller 3 is provided with an upward-facing slot 31.

[0091] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the inner cylinder 2 also includes a stirring column 4, on which a stirring structure 5 is provided. The stirring column 4 can rotate relative to the inner cylinder 2 to stir the washing liquid in the inner cylinder 2 through the stirring structure 5. Figure 5 As shown, the bottom end of the stirring column 4 has a plug section 44, which is detachably inserted into the slot 31.

[0092] like Figure 1 and Figure 5As shown, the inner cylinder 2 also includes a filter 7, which is disposed on the stirring column 4. The filter 7 has a filtration chamber inside and is provided with a water inlet and a filter hole communicating with the filtration chamber. The water inlet is configured to allow washing liquid and foreign objects to enter the filtration chamber, and the filter hole is configured to allow washing liquid to pass through while restricting the passage of foreign objects to collect them.

[0093] Among them, such as Figure 6 As shown, the outer wall of the insertion segment 44 has a plurality of first planes 441, which face different directions in the circumferential direction of the insertion segment 44. Figure 8 and Figure 9 As shown, the inner wall of the slot 31 has a plurality of second planes 311, which are arranged in a one-to-one correspondence with a plurality of first planes 441. The second planes 311 abut against the corresponding first planes 441 to transmit torque between the impeller 3 and the stirring column 4.

[0094] With this configuration, on the one hand, during the washing process, the impeller 3, the stirring column 4, and the stirring structure 5 can all rotate and stir. The rotating impeller 3, the stirring column 4, and the stirring structure 5 can fully drive the washing liquid and the washed items to tumble and rub, thereby significantly increasing the friction frequency between the washed items and the washing liquid, and thus significantly enhancing the washing power.

[0095] Meanwhile, since the stirring column 4 is located on the main flow path of the washing liquid and the washed items in the inner cylinder 2, when the washing liquid circulates with the rotation of the impeller 3, stirring column 4 and stirring structure 5, foreign objects such as lint and fibers will directly enter the filter chamber through the inlet with the washing liquid. Under the action of the filter holes, the filter 7 can efficiently filter and collect foreign objects, which can not only effectively prevent foreign objects from clogging the pipes, but also effectively prevent foreign objects from adhering to the washed items.

[0096] As can be seen from the above description, the combined effect of stirring and filtering not only significantly enhances the washing power, but also effectively prevents foreign objects from adhering to the washed items, thereby significantly improving the washing effect of the pulsator washing machine and effectively meeting the ever-increasing washing needs of consumers.

[0097] On the other hand, firstly, because the first plane 441 and the corresponding second plane 311 abut against each other, the insertion section 44 can be prevented from rotating relative to the slot 31, and thus the stirring column 4 can also be prevented from rotating relative to the impeller 3. Thus, when the impeller 3 rotates, the torque can be effectively transmitted between the impeller 3 and the stirring column 4 through the abutment between the second plane 311 and the first plane 441, thereby avoiding power loss and improving the efficiency of rotation and stirring.

[0098] Secondly, the multiple first planes 441 and second planes 311 are distributed in the circumferential direction, which can make the torque transmission more balanced, reduce the swaying phenomenon when the stirring column 4 rotates, thereby enhancing the stability of the detachable connection and reducing the noise caused by swaying.

[0099] In some alternative embodiments, such as Figure 1 As shown, the washing drum also includes a drive mechanism 6, which is located in the outer drum 1 and is used to drive the impeller 3 to rotate so that the impeller 3 drives the stirring column 4 and the stirring structure 5 to rotate synchronously.

[0100] With this configuration, the drive mechanism 6 can provide a stable power source for the impeller 3, ensuring that the impeller 3 can continuously and effectively drive the stirring column 4 and the stirring structure 5 to rotate synchronously.

[0101] In this embodiment, the drive mechanism 6 may include an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder, meaning that the impeller 3 can be driven to rotate by an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder. The structure of the drive mechanism 6 is quite flexible and can be configured according to actual needs; this embodiment does not impose any specific limitations on it.

[0102] In some alternative embodiments, such as Figure 8 and Figure 9 As shown, the bottom wall of the slot 31 is provided with a mounting hole 33 that passes through the impeller 3. The inner cylinder 2 also includes a fastener, which passes through the mounting hole 33. The top end of the fastener is fixed relative to the insertion section 44 in the vertical direction, and the bottom end of the fastener abuts against the bottom of the impeller 3 away from the stirring column 4 to prevent the stirring column 4 from disengaging from the impeller 3 in the vertical direction.

[0103] This configuration, through fasteners, facilitates the assembly and disassembly of the stirring column 4 and the impeller 3, while also significantly enhancing the stability of the connection between the stirring column 4 and the impeller 3 through mechanical locking.

[0104] In this embodiment, the fasteners can be bolts, nuts, screws, etc. The type of fastener can be selected flexibly, specifically according to actual needs; this embodiment does not impose any specific limitations on this.

[0105] In some alternative embodiments, the plug segment 44 is provided with a claw, and the inner wall of the slot 31 is provided with a slot for the claw to be inserted and engaged with the claw.

[0106] With this configuration, the interlocking of the claws and slots not only allows the insertion section 44 to be detachably inserted into the slot 31, but also facilitates the disassembly of the stirring column 4 and the impeller 3 to a certain extent.

[0107] In some alternative embodiments, such as Figure 6As shown, multiple first planes 441 are arranged circumferentially around the plug segment 44, and an arc-shaped surface 442 connects any two adjacent first planes 441.

[0108] The curved surface 442 can prevent component damage caused by sharp corner collisions, thus extending service life. At the same time, the curved surface 442 can effectively disperse stress concentration at the connection point. Compared with sharp corner transitions, the curved surface 442 can enhance the structural strength of the plug section 44 and reduce the risk of breakage due to long-term use.

[0109] In some alternative embodiments, any two adjacent first planes 441 are connected to form an angular shape. This arrangement simplifies the structure of the plug segment 44 to some extent and facilitates its processing.

[0110] In some alternative embodiments, the inner wall of the slot 31 extends vertically, and the shape of each horizontal cross-section of the slot 31 in the vertical direction is consistent. The insertion segment 44 is a column extending vertically, and the cross-sectional profile of the insertion segment 44 matches the profile of the inner wall of the slot 31.

[0111] With this configuration, when the plug section 44 is inserted into the slot 31, regardless of the insertion depth, the first plane 441 of its outer side wall and the second plane 311 of the inner side wall of the slot 31 will always maintain a stable abutment fit, thereby ensuring the reliability and stability of torque transmission between the impeller 3 and the stirring column 4; at the same time, the regular and matching structural design facilitates the insertion and removal of the stirring column 4, thereby ensuring its ease of installation and removal.

[0112] In addition, the contour-matched plug section 44 and the inner wall of the slot 31 facilitate the formation of a tight mechanical connection, which helps to ensure that the stirring column 4 remains stable when rotating with the impeller 3, and helps to avoid shaking or abnormal noise caused by loosening.

[0113] It should be noted here that the inner wall of slot 31 extends vertically, which may include the case where the angle between the inner wall and the vertical direction is zero, such as... Figure 10 As shown, the angle between the inner wall and the vertical direction may also be non-zero. For example, the slot 31 and the insertion section 44 may each have a draft angle of 1.5°, allowing the angle between the inner wall and the vertically upward direction to be 1.5°. By setting an angle between the inner wall and the vertical direction, it is easier to insert and install the insertion section 44 into the slot 31.

[0114] In some alternative embodiments, such as Figure 6 As shown, a positioning post 45 is provided on one of the bottom ends of the insertion section 44 and the bottom wall of the slot 31, as... Figure 8 , Figure 9 and Figure 10 As shown, the other is provided with a positioning hole 32 for the insertion of a positioning column 45. The positioning column 45 is configured to be inserted into the positioning hole 32 during the installation of the stirring column 4 and the impeller 3, so as to pre-position the stirring column 4 by guiding the positioning column 45 through the positioning hole 32.

[0115] With this configuration, the positioning pin 45 and the positioning hole 32 can provide precise axial and radial positioning when the insertion section 44 is inserted into the slot 31, which can avoid the problem of eccentricity of the stirring column 4 caused by manual installation deviation, thereby ensuring the coaxiality of the impeller 3 and the stirring column 4, and thus enhancing the stability of the impeller 3 and the stirring column 4 when rotating.

[0116] In this embodiment, the positioning hole 32 can be a blind hole or a through hole. The structure of the positioning hole 32 is flexible and can be set according to actual needs. This embodiment does not limit it in this respect.

[0117] Furthermore, in some alternative embodiments, such as Figure 6 , Figure 8 and Figure 9 As shown, there are multiple positioning holes 32 and multiple mounting holes 33, and the multiple positioning holes 32 and multiple mounting holes 33 are all spaced apart in different directions of the circumference of the insertion section 44.

[0118] This configuration allows for positioning and fixing of the stirring column 4 and impeller 3 from multiple angles, thus avoiding potential offsets that may occur when positioning or fixing in a single location. It further ensures the coaxiality and stability of the assembly of the two components, while also ensuring that the first plane 441 and the second plane 311 are always in close contact, guaranteeing the effective transmission of torque.

[0119] In some alternative embodiments, such as Figure 1 and Figure 5 As shown, the stirring column 4 has an installation cavity 41 inside, and the filter 7 is installed inside the installation cavity 41.

[0120] like Figure 2 and Figure 3 As shown, the outer wall of the stirring column 4 is provided with a liquid inlet hole 42 and a liquid outlet hole 43, both of which are connected to the mounting cavity 41.

[0121] With this configuration, during washing, the washing liquid containing foreign objects can enter the mounting cavity 41 through the liquid inlet 42, and after being filtered by the filter 7, the washing liquid can also be discharged through the drain hole 43, thus forming a complete filtration path of "water inlet-filtration-drainage", which can ensure that foreign objects are effectively filtered.

[0122] In addition, by placing the filter 7 in the mounting cavity 41 inside the agitator column 4, on the one hand, the filter 7 does not occupy the washing space in the inner drum 2, thus ensuring that the inner drum 2 has sufficient washing space and making the structure of the pulsator washing machine more compact; on the other hand, it can avoid friction between the filter 7 and the washed items, thereby reducing the wear of the filter 7 and extending its service life.

[0123] In some alternative embodiments, the filter 7 is disposed on the outer wall of the stirring column 4, that is, the filter 7 is directly exposed in the inner cylinder 2. With this arrangement, it is not necessary to provide an installation cavity 41, a liquid inlet 42, and a liquid outlet 43 on the stirring column 4, thereby simplifying the structure of the stirring column 4 to a certain extent and facilitating its processing and manufacturing.

[0124] Regarding the number of liquid inlet holes 42 and liquid outlet holes 43, in this embodiment of the application, there may be one liquid inlet hole 42 and one liquid outlet hole 43, or multiple liquid inlet holes 42 and one liquid outlet hole 43 may be arranged in an array. The number of liquid inlet holes 42 and liquid outlet holes 43 is set flexibly. Specifically, it can be set according to actual needs. This embodiment of the application does not make a specific limitation on this.

[0125] In some alternative embodiments, such as Figure 2 and Figure 3 As shown, the stirring column 4 extends vertically along its length, and the liquid inlet 42 is located on the outer wall of the stirring column 4.

[0126] With this configuration, since the stirring column 4 extends vertically along its length, the outer wall of the stirring column 4 will be in direct contact with the washing liquid, resulting in a large contact area. Therefore, placing the inlet hole 42 on the outer wall of the stirring column 4 facilitates the flow of the washing liquid into the mounting cavity 41.

[0127] In some alternative embodiments, when the top of the stirring column 4 is lower than the liquid level of the washing liquid in the inner cylinder 2, the liquid inlet 42 can also be provided at the top of the stirring column 4.

[0128] With this configuration, since the stirring structure 5 is usually located on the outer wall of the stirring column 4, setting the liquid inlet 42 at the top of the stirring column 4 can avoid the setting of the liquid inlet 42 affecting the setting of the stirring structure 5, and facilitates the setting of the stirring structure 5.

[0129] In some alternative embodiments, such as Figure 6 As shown, the stirring column 4 extends vertically along its length, and the drain hole 43 is located at the bottom end of the stirring column 4, as... Figure 8 and Figure 9 As shown, a drain hole 34 is provided on the bottom wall of the slot 31, and the drain hole 34 connects to the space between the inner cylinder 2 and the outer cylinder 1.

[0130] With this configuration, under the influence of gravity, the washing liquid in the mounting cavity 41 can be more easily discharged through the drain hole 43 and the water leakage hole 34 into the space between the inner cylinder 2 and the outer cylinder 1, thereby improving the efficiency of washing liquid discharge.

[0131] In some alternative embodiments, the drain hole 43 may also be provided on the outer wall of the stirring column 4. In this case, the drain hole 34 may not be provided on the bottom wall of the slot 31.

[0132] With this configuration, since the outer wall of the stirring column 4 has a relatively large area, placing the drain hole 43 on the outer wall of the stirring column 4 facilitates the placement of the drain hole 43 on the stirring column 4.

[0133] In some alternative embodiments, such as Figure 2 and Figure 3 As shown, the stirring column 4 extends vertically along its length, and the liquid inlet 42 is located on the outer wall of the stirring column 4, as... Figure 6 As shown, the drain hole 43 is located at the bottom end of the stirring column 4, as... Figure 8 and Figure 9 As shown, a drain hole 34 is provided on the bottom wall of the slot 31, and the drain hole 34 connects to the space between the inner cylinder 2 and the outer cylinder 1.

[0134] This design not only makes it easier for the washing liquid to flow into the mounting cavity 41 through the inlet hole 42, but also makes it easier for the washing liquid in the mounting cavity 41 to be discharged into the space between the inner cylinder 2 and the outer cylinder 1 through the drain hole 43 and the water leakage hole 34. This helps to improve the efficiency of the washing liquid flowing into and out of the mounting cavity 41, and thus helps to improve the filtration efficiency.

[0135] In some optional embodiments, the top end of the stirring column 4 is provided with an opening communicating with the mounting cavity 41, the opening allowing the filter 7 to be installed into or removed from the mounting cavity 41.

[0136] like Figure 5 As shown, a cover 46 is detachably provided at the opening, and the cover 46 is used to seal the opening.

[0137] This design facilitates the installation and removal of the filter 7 in the mounting cavity 41 through the opening, and the cover 46 prevents the washed items from entering the mounting cavity 41. This not only prevents the washed items from getting tangled, but also prevents the washed items from affecting the filter 7.

[0138] In some alternative embodiments, when the stirring column 4 is not installed on the impeller 3, the cover 46 can be removed from the stirring column 4 and installed at the slot of the slot 31 to block the slot of the slot 31.

[0139] This design prevents laundry items and foreign objects from getting stuck in the slot 31 during the washing process, causing blockages or entanglement. It also prevents the slot 31 from being affected by the accumulation of foreign objects, thus ensuring the compatibility of the subsequent stirring column 4. At the same time, the sealed slot 31 maintains the flatness of the top surface of the impeller 3, reducing the turbulent dead zones formed by the water flow in the slot 31. This ensures that a stable water flow can be maintained even when the impeller 3 is agitated alone, guaranteeing the washing effect and equipment reliability in different usage scenarios.

[0140] In some alternative embodiments, such as Figure 2 and Figure 3 As shown, the stirring structure 5 includes stirring blades 51, which are spirally arranged on the outer periphery of the stirring column 4 from one end to the other.

[0141] The stirring blades 51 are arranged in a spiral shape on the outer periphery of the stirring column 4. When the stirring column 4 rotates, the spiral stirring blades 51 will push the washing liquid to generate a three-dimensional vortex that spirals upward or downward in the inner cylinder 2. This vortex can cause the washed clothes to make a spiral tumbling motion, which can increase the friction area and frequency between the washed clothes and between the washed clothes and the water flow, making it easier to remove stains.

[0142] Furthermore, because the spiral motion subjectes the washed items to forces in multiple directions during the washing process, they are less likely to tangle and clump together, thus reducing entanglement and protecting the items. Simultaneously, the spiral-moving washing liquid approaching the stirring column 4 passes more easily through the filter 7, making it easier for the filter 7 to filter out foreign matter from the washing liquid.

[0143] By arranging the stirring blades 51 from one end of the stirring column 4 to the other end, the stirring blades 51 can be continuously distributed along the axial direction of the stirring column 4. This continuous distribution is not only more aesthetically pleasing, but also allows the washing liquid to form a uniform force on the outer periphery of the stirring column 4, which can avoid excessively strong or weak local forces, thereby improving the uniformity of washing.

[0144] In some alternative embodiments, the stirring blades 51 extend in the same direction as the stirring column 4.

[0145] This design simplifies the structure of the stirring blade 51 and facilitates its processing and manufacturing.

[0146] Furthermore, in some alternative embodiments, such as Figure 7 As shown, the stirring blades 51, which extend in the same direction as the length of the stirring column 4, include wave-shaped wave segments 511.

[0147] This design, through the wave segment 511, increases the contact area between the stirring blade 51 and the object being washed, thereby making it easier to remove stains and improving the cleaning effect.

[0148] In some alternative embodiments, the stirring blades 51, which extend in the same direction as the length of the stirring column 4, can be integrally flat. This configuration simplifies the structure of the stirring blades 51 and facilitates their manufacturing.

[0149] In other embodiments, the stirring structure 5 may also include a protruding ridge protruding from the outer wall of the stirring column 4, and the length direction of the protruding ridge may extend along the length direction of the stirring column 4.

[0150] This design, with its protruding ridges, simplifies the structure of the stirring structure 5 to some extent, making it easier to process.

[0151] In some alternative embodiments, such as Figure 2 , Figure 3 , Figure 4 as well as Figure 6 As shown, multiple stirring blades 51 are provided, and the multiple stirring blades 51 are evenly and spaced around the periphery of the stirring column 4.

[0152] The evenly distributed and spaced stirring blades 51 can synchronously push the washing liquid from different directions when the stirring column 4 rotates, forming a symmetrical and balanced vortex field in the inner cylinder 2. This avoids local water flow turbulence caused by uneven distribution of the stirring blades 51, ensuring that the items being washed in each area can come into contact with a strong water flow. In addition, it also improves the aesthetic appearance.

[0153] In this embodiment, there may be two, three or more stirring blades 51. The number of stirring blades 51 is flexible and can be set according to actual needs. This embodiment does not impose any specific limitations on this.

[0154] In some alternative embodiments, among the plurality of stirring blades 51, at least one pair of adjacent stirring blades 51 has a spacing that is different from the spacing between other adjacent stirring blades 51.

[0155] This arrangement simplifies the layout of multiple stirring blades 51 to a certain extent, which in turn facilitates the placement of the stirring blades 51 on the stirring column 4.

[0156] In some alternative embodiments, only one stirring blade 51 is provided. This arrangement simplifies the number of stirring blades 51, thereby facilitating the placement of the stirring blades 51 on the stirring column 4.

[0157] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A pulsator washing machine, characterized in that, include: Box; A washing drum is disposed within the housing. The washing drum includes an inner drum and an outer drum. The inner drum is disposed within the outer drum. The inner drum includes: A pulsator, located at the bottom of the inner drum, is used to stir the washing liquid and allow the washing liquid to enter the space between the inner drum and the outer drum from the inner drum. The top of the pulsator is provided with an upward-facing slot. A stirring column is provided with a stirring structure. The stirring column can rotate relative to the inner cylinder to stir the washing liquid in the inner cylinder through the stirring structure. The bottom end of the stirring column has a plug-in section, which is detachably inserted into the slot. A filter is disposed on the stirring column. The filter has a filter chamber inside. The filter is provided with an inlet and a filter hole communicating with the filter chamber. The inlet is configured to allow the washing liquid and foreign matter to enter the filter chamber. The filter hole is configured to allow the washing liquid to pass through and restrict the passage of foreign matter in order to collect the foreign matter. The outer wall of the plug segment has multiple first planes, each facing a different direction in the circumferential direction of the plug segment. The inner wall of the slot has multiple second planes, each corresponding to one of the first planes. The second planes abut against the corresponding first planes to transmit torque between the impeller and the stirring column.

2. The pulsator washing machine according to claim 1, characterized in that, The bottom wall of the slot is provided with a mounting hole that passes through the impeller; The inner cylinder also includes: A fastener is provided, which passes through the mounting hole and is fixed in the vertical direction relative to the insertion section. The bottom end of the fastener abuts against the bottom of the impeller away from the stirring column to prevent the stirring column from detaching from the impeller in the vertical direction.

3. The pulsator washing machine according to claim 1 or 2, characterized in that, Multiple first planes are arranged circumferentially around the plug segment, and an arc-shaped surface connects any two adjacent first planes.

4. The pulsator washing machine according to claim 1 or 2, characterized in that, The inner wall of the slot extends vertically, and the shape of each horizontal cross-section of the slot in the vertical direction is the same. The insertion segment is a column extending in a vertical direction, and the cross-sectional profile of the insertion segment matches the profile of the inner sidewall of the slot.

5. The pulsator washing machine according to claim 2, characterized in that, A positioning post is provided on one of the bottom end of the plug section and the bottom wall of the slot, and a positioning hole is provided on the other for the positioning post to be inserted. The positioning post is configured to be inserted into the positioning hole during the installation of the stirring column and the impeller, so as to pre-position the stirring column by guiding the positioning post through the positioning hole.

6. The pulsator washing machine according to claim 5, characterized in that, There are multiple positioning holes and multiple mounting holes, and the multiple positioning holes and multiple mounting holes are all spaced apart in different directions in the circumferential direction of the plug segment.

7. The pulsator washing machine according to claim 1 or 2, characterized in that, The stirring column has an internal mounting cavity, and the filter is disposed within the mounting cavity; The outer wall of the stirring column is provided with a liquid inlet hole and a liquid outlet hole, both of which are connected to the mounting cavity.

8. The pulsator washing machine according to claim 7, characterized in that, The stirring column extends vertically along its length. Wherein, the liquid inlet is disposed on the outer wall of the stirring column; and / or, The drain hole is located at the bottom of the stirring column, and a water leakage hole is provided on the bottom wall of the slot, which connects to the space between the inner cylinder and the outer cylinder.

9. The pulsator washing machine according to claim 1 or 2, characterized in that, The stirring structure includes stirring blades; The stirring blades are spirally arranged on the outer periphery of the stirring column from one end to the other; or, The stirring blades extend in the same direction as the stirring column.

10. The pulsator washing machine according to claim 9, characterized in that, The stirring blades are provided in multiple ways, and the multiple stirring blades are evenly and spaced apart around the periphery of the stirring column.

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