Impeller assembly and clothes treatment device

Abstract

An impeller assembly (10) and a clothes treatment device. The impeller assembly (10) comprises an impeller (1) and an agitator rod (2); the impeller (1) can rotate axially; the agitator rod (2) is detachably and coaxially connected to the impeller (1); the impeller (1) and the agitator rod (2) are each provided with a connecting structure (3) and a locating structure (4); the connecting structures (3) allow movement of the impeller (1) and the agitator rod (2) in a first direction so as to implement connection and disconnection; the locating structures (4) limit the positions of the impeller (1) and the agitator rod (2) in a connected state; the first direction corresponds to a radial direction passing through the impeller (1) and the agitator rod (2); and an included angle between the first direction and the radial direction is a first preset acute angle or the first direction is the radial direction.

Description

Pulsator assembly and clothing processing device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202311143769.4 and application date September 6, 2023, and the application number 202310801380.8 and application date June 30, 2023, and claims the priority of the above-mentioned Chinese patent applications. The entire contents of the above-mentioned Chinese patent applications are hereby introduced into this application as a reference. Technical Field

[0003] The present application belongs to the technical field of household appliances, and more specifically, relates to a pulsator assembly and a clothing processing device. Background Art

[0004] Both pulsator and agitator washing machines are popular among users, and each has its own advantages. In a pulsator washing machine, the impeller at the bottom of the washing tub rotates forward and backward, causing the clothes to flip up and down, left and right, and continuously. This creates friction between the clothes, between the clothes and the tub walls, and between the clothes and the impeller, thereby removing dirt and cleaning. Agitator washing machines have a stirring rod installed in the center of the impeller at the bottom of the washing tub. The impeller rotates forward and backward, driving the stirring rod in the center of the tub, thereby driving the water flow within the washing tub and the clothes. The moving water pushes the clothes to flip continuously, causing friction between the clothes, between the clothes and the tub walls, and between the stirring rod, and the detergent to remove dirt and clean.

[0005] The stirring rod and pulsator of a conventional agitator-type washing machine are detachably connected, allowing the user to switch between agitator and pulsator modes at any time according to their washing needs. The stirring rod and pulsator are fixedly connected by a connecting structure. However, this structure experiences significant rotational resistance during the rotation of the washing machine, and the strength of the connecting structure is generally not high, which can easily lead to reliability risks in the connection between the stirring rod and pulsator.

[0006] Summary of the Invention

[0007] In view of this, the present application provides a pulsator assembly and a clothes processing device to solve the technical problem of how to improve the connection reliability between the stirring rod and the pulsator.

[0008] The technical solution of this application is achieved as follows:

[0009] An embodiment of the present application provides a impeller assembly, comprising: an impeller, rotatable about an axial direction; a stirring rod, wherein the stirring rod is detachably coaxially connected to the impeller; wherein a connecting structure and a positioning structure are provided on both the impeller and the stirring rod; the connecting structure allows the impeller and the stirring rod to move along a first direction to connect and disconnect, and the positioning structure limits the positions of the impeller and the stirring rod in a connected state; the first direction corresponds to a radial direction passing through the impeller and the stirring rod, and the angle between the first direction and the radial direction is a first preset acute angle or the first direction is the radial direction.

[0010] An embodiment of the present application also provides a clothing processing device, comprising: a barrel body having a accommodating cavity for accommodating clothing; a pulsator assembly as described in any one of the above items, located in the accommodating cavity and the pulsator connected to the bottom of the barrel body.

[0011] An embodiment of the present application provides a pulsator assembly, comprising a pulsator and a stirring rod. The pulsator is axially rotatable; the stirring rod is detachably coaxially connected to the pulsator; wherein both the pulsator and the stirring rod are provided with a connecting structure and a positioning structure; the connecting structure allows radial relative movement between the pulsator and the stirring rod for connection and disconnection, and the positioning structure defines the position of the pulsator and the stirring rod in a connected state; the first direction corresponds to a radial direction passing through the pulsator and the stirring rod, and the angle between the first direction and the radial direction is a first preset acute angle or the first direction is the radial direction. The stirring rod and the impeller of the embodiment of the present application are detachably connected coaxially, so that the user can remove or install the stirring rod on the impeller according to actual washing needs; the impeller and the stirring rod are both provided with a connecting structure and a positioning structure, so that the connecting structure and the positioning structure can double-limit the connection between the impeller and the stirring rod, and disperse the resistance; through the connecting structure and the positioning structure, that is, the connecting structure allows the relative movement between the impeller and the stirring rod along the first direction to connect and disconnect, so that under the limitation of the connecting structure, the impeller and the stirring rod can be connected for relative movement along the first direction, and the positioning structure limits the position of the impeller and the stirring rod in the connected state, so that the stirring rod and the impeller are not prone to relative movement, and the connection between the stirring rod and the impeller can be more stable, thereby improving the connection reliability of the impeller and the stirring rod. The angle between the first direction and the radial direction of the impeller and the stirring rod can be a first preset acute angle. In this way, the stirring rod can move obliquely upward or obliquely downward relative to the impeller. A washing tub is provided around the stirring rod. When removing the stirring rod, the user can apply an oblique upward force to pull the stirring rod to disconnect the stirring rod from the impeller. At this time, due to the oblique upward movement of the stirring rod, the stirring rod has a larger movement space and is not easily restricted by the wall of the washing tub, which facilitates the removal of the stirring rod from the impeller. Moreover, when the user pulls the stirring rod by hand, the oblique upward pulling facilitates the human muscle force, which conforms to the setting of human physiology. When installing the stirring rod and the impeller, the user can apply an oblique downward force to push the stirring rod to connect with the impeller. The gravity of the stirring rod also causes the stirring rod to have a downward tendency, thereby facilitating the installation of the stirring rod and the impeller. The combined action of the connecting structure and the positioning structure can ensure a stable connection between the impeller and the stirring rod. When the impeller drives the stirring rod to rotate together, the structure used to limit the impeller and the stirring rod is not easily broken, so that the stirring rod and the impeller can be stably limited and rotate together. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0013] FIG1 is a schematic diagram of the three-dimensional structure of the installation of the impeller and the stirring rod in the first embodiment of the present application;

[0014] FIG2 is a schematic diagram of the three-dimensional structure of the impeller and stirring rod in the first embodiment of the present application after being disassembled;

[0015] FIG3 is a schematic diagram of the three-dimensional structure of the impeller according to the first embodiment of the present application;

[0016] FIG4 is a front view of a cross-section of the stirring rod according to the first embodiment of the present application;

[0017] FIG5 is a schematic diagram of the three-dimensional structure of the stirring rod according to the first embodiment of the present application;

[0018] FIG6 is a schematic diagram of the three-dimensional structure of the mortise and tenon pin of the first embodiment of the present application;

[0019] FIG7 is a cross-sectional view of the mortise and tenon pin of the first embodiment of the present application;

[0020] FIG8 is a schematic diagram of the three-dimensional structure of the impeller including the mortise and tenon pins of the first embodiment of the present application;

[0021] FIG9 is a schematic diagram of the three-dimensional structure of the installation of the impeller and the stirring rod according to the second embodiment of the present application;

[0022] FIG10 is a schematic diagram of the three-dimensional structure of the disassembled impeller and stirring rod of the second embodiment of the present application;

[0023] FIG11 is a side view of the impeller of the second embodiment of the present application;

[0024] FIG12 is a schematic diagram of the three-dimensional structure of the stirring rod (excluding the first telescopic rod) according to the second embodiment of the present application;

[0025] FIG13 is a cross-sectional view of a stirring rod according to a second embodiment of the present application;

[0026] FIG14 is a schematic diagram of the three-dimensional structure of the tenon according to the second embodiment of the present application;

[0027] FIG15 is a schematic diagram of the three-dimensional structure of the mortise and tenon pin according to the second embodiment of the present application;

[0028] FIG16 is a cross-sectional view of the mortise and tenon pin and the impeller according to the second embodiment of the present application;

[0029] FIG17 is a schematic diagram of the three-dimensional structure of the disassembly of the mortise and tenon pins and the impeller according to the second embodiment of the present application;

[0030] FIG18 is a schematic diagram of the three-dimensional structure of the installation of the mortise and tenon pins and the stirring rod according to the second embodiment of the present application.

[0031] Description of reference numerals: 10, impeller assembly; 1, impeller; 11, groove; 12, bottom plate; 13, rotor blade; 14, connecting protrusion; 15. Positioning hole; 16. Open end; 17. Abutting end; 2. Stirring rod; 21. Main body; 22. Cavity; 23. First telescopic rod; 231. Handle; 232. Rod body; 24. First end; 25. Tenon; 261. Trapezoidal portion; 262. Second through hole; 27. First elastic member; 28. Tubular structure; 29. ​​Second end; 3. Connecting structure; 31. Mortise and tenon structure; 4. Positioning structure; 41. Positioning pin; 42. Positioning hole; 5. Mortise and tenon pin; 51. Pin body; 52. Second telescopic rod; 521. Column portion; 522. Handle portion; 523. Raised portion; 53. Second elastic member; 54. Third end; 55. Fourth end; 56. Channel; 57. First through hole; 6. Snap structure. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0033] The various specific technical features described in the specific embodiments may be combined in any suitable manner, unless they are inconsistent. For example, different embodiments and technical solutions may be formed by combining different specific technical features. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this application will not be described separately.

[0034] In the following description, the terms "first, second, ..." are used solely to distinguish different objects and do not imply any similarities or connections between the objects. It should be understood that the directions "above," "below," "outside," and "inside" refer to directions during normal use. The directions "left" and "right" refer to the left-right directions shown in the corresponding schematic diagrams, which may or may not be the left-right directions during normal use.

[0035] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. "A plurality" means greater than or equal to two.

[0036] The embodiment of the present application provides a pulsator assembly and a clothing processing device. The pulsator assembly described in the embodiment of the present application can be applied to agitator-type washing machines and pulsator-type washing machines. When the pulsator and the stirring rod are installed, it is an agitator-type washing machine; when the pulsator and the stirring rod are removed, it is a pulsator-type washing machine. A connecting structure and a positioning structure are provided on both the pulsator and the stirring rod; the connecting structure allows radial relative movement between the pulsator and the stirring rod for connection and disconnection, and the positioning structure limits the radial position of the pulsator and the stirring rod in the connected state. The dual limitation of the connecting structure and the positioning structure makes the connection between the pulsator and the stirring rod more stable, thereby improving the connection reliability of the pulsator and the stirring rod. It can be understood that washing machines include single-wash washing machines with a separate washing function, washing machines with washing and dehydration functions, and washing-drying machines with washing and drying functions.

[0037] As shown in Figures 1-2 and 9-10, an embodiment of the present application provides a pulsator assembly 10, which includes a pulsator 1 and a stirring rod 2. The pulsator 1 can rotate axially; the stirring rod 2 is detachably connected to the pulsator 1 coaxially, that is, the stirring rod 2 is coaxially arranged with the pulsator 1, and the stirring rod 2 is detachably connected to the pulsator 1. When the pulsator 1 and the stirring rod 2 are connected, the pulsator 1 can rotate axially, and can drive the stirring rod 2 to rotate axially together. The side wall of the stirring rod 2 is also provided with several stirring wings, which can be kept within 360° and rotate back and forth fast or slow according to the texture of the clothes, the degree of dirtiness, the quality of the laundry, etc., and the clothes can be rubbed back and forth in the arms to thoroughly remove the stains.

[0038] In the first embodiment, as shown in Figures 1 and 2, a connecting structure 3 and a positioning structure 4 are provided on the impeller 1 and the stirring rod 2 to realize detachable connection between the impeller 1 and the stirring rod 2; the connecting structure 3 allows radial relative movement between the impeller 1 and the stirring rod 2 to connect and disconnect. It can be understood that the connecting structure 3 allows radial relative movement between the impeller 1 and the stirring rod 2. For example, when the connecting structure 3 of the impeller 1 and the connecting structure 3 of the stirring rod 2 move relative to each other in the radial direction to have an overlapping part, the impeller 1 is connected to the stirring rod 2; when the connecting structure 3 of the impeller 1 and the connecting structure 3 of the stirring rod 2 move relative to each other in the radial direction to have no overlapping part, the impeller 1 is disconnected from the stirring rod 2. The positioning structure 4 limits the radial position of the impeller 1 and the stirring rod 2 in the connected state. It can be understood that when the impeller 1 and the stirring rod 2 are in the connected state, the impeller 1 and the stirring rod 2 can still move relative to each other in the radial direction to disconnect, and the positioning structure 4 can limit the relative movement of the impeller 1 and the stirring rod 2 in the radial direction, thereby limiting the radial position of the impeller 1 and the stirring rod 2 in the connected state, so that the connection between the impeller 1 and the stirring rod 2 can be more stable and not easy to produce relative movement in the radial direction.

[0039] The stirring rod and the impeller of the embodiment of the present application are detachably connected coaxially, so that the user can remove or install the stirring rod on the impeller according to actual washing needs; the impeller and the stirring rod are both provided with a connecting structure and a positioning structure, so that the connecting structure and the positioning structure can double-limit the connection between the impeller and the stirring rod, and disperse the resistance; through the connecting structure and the positioning structure, that is, the connecting structure allows the radial relative movement between the impeller and the stirring rod to connect and disconnect, so that under the limitation of the connecting structure, the impeller and the stirring rod can be connected in a radial relative movement, and the positioning structure limits the radial position of the impeller and the stirring rod in the connected state, so that the stirring rod and the impeller are not prone to relative movement, and the connection between the stirring rod and the impeller can be more stable, thereby improving the connection reliability of the impeller and the stirring rod.

[0040] In some embodiments, as shown in Figures 1 and 2, the connection structure 3 includes a mortise and tenon structure 31 provided at one axial end of the stirring rod 2 and at one axial end of the impeller 1, so that the mortise and tenon structure 31 provided at one axial end of the stirring rod 2 and the mortise and tenon structure 31 provided at one axial end of the impeller 1 can be connected and disconnected. The mortise and tenon structure 31 is located in the middle area of ​​the impeller 1, so that the stirring rod 2 is connected to the middle area of ​​the impeller 1 through the mortise and tenon structure 31. When used in a clothing processing device, the stirring rod 2 is located in the middle area of ​​the barrel, so that when washing clothes, the friction force between the clothes in the barrel and the stirring rod 2 is relatively uniform. The mortise and tenon structure 31 corresponds to a radial direction that passes through the stirring rod 2 and the impeller 1, that is, the mortise and tenon structure 31 corresponds to a radial direction that passes through the entire structure formed by the stirring rod 2 and the impeller 1. For example, the mortise and tenon structure 31 of the stirring rod 2 radially passes through the mortise and tenon structure 31 of the impeller 1; or, the mortise and tenon structure 31 of the impeller 1 radially passes through the mortise and tenon structure 31 of the stirring rod 2, thereby achieving radial relative movement between the impeller 1 and the stirring rod 2. 3 and 4 , the positioning structure 4 includes a positioning pin 41 and a positioning hole 42 . The positioning pin 41 and the positioning hole 42 are arranged on the outside of the mortise and tenon structure 31 . The positioning pin 41 can be inserted into the positioning hole 42 , thereby limiting the radial position of the impeller 1 and the stirring rod 2 in the connected state.

[0041] The mortise and tenon joint is a concave-convex connection method used on two components. The protruding part is called the tenon (or tenon head); the concave part is called the mortise (or mortise, tenon groove, or groove). The tenon and mortise interlock to form a connection. The mortise and tenon joint is a combination of tenons (tenons) and mortise (grooves). It is an ingenious combination of the number and height, height and length of components, which effectively restricts the twisting of wooden parts in all directions. The most basic mortise and tenon joint structure consists of two components, one of which has its tenon inserted into the mortise of the other, connecting and securing the two components. The part of the tenon that extends into the mortise is called the tongue, and the remaining part is called the shoulder.

[0042] The connection structure of the embodiment of the present application includes a mortise and tenon structure arranged at one axial end of the stirring rod and at one axial end of the impeller. The mortise and tenon structure corresponds to the radial direction passing through the stirring rod and the impeller, so that the impeller and the stirring rod can move relative to each other in the radial direction to achieve connection and disconnection between the impeller and the stirring rod; the positioning structure includes a positioning pin and a positioning hole, that is, the positioning pin can be inserted into the positioning hole, thereby limiting the radial position of the impeller and the stirring rod in the connected state, so that the stirring rod and the impeller are not prone to relative movement, the connection between the stirring rod and the impeller can be more stable, and the connection reliability of the impeller and the stirring rod is improved.

[0043] In some embodiments, as shown in Figures 4 and 5, the stirring rod 2 includes a body 21, a first telescopic rod 23, and a tenon 25. The body 21 defines a cavity 22. The first telescopic rod 23 is located within the cavity 22, is coaxial with the body 21, and can axially translate relative to the body 21. A positioning pin 41 is connected to the first telescopic rod 23, so that the positioning pin 41 can axially translate relative to the body 21 along with the first telescopic rod 23. The positioning pin 41 protrudes from a first axial end 24 of the body 21, where the first end 24 is the end of the body 21 axially proximal to the impeller 1. The tenon 25 is configured to connect with the groove 11 defined in the impeller 1 to form a tenon-and-mortise structure 31. Specifically, the tenon 25 radially slides into the groove 11, thereby forming a tenon-and-mortise structure 31. The tenon 25 axially protrudes from the first end 24 of the body 21, extending from one radial end of the body 21 to the other, with the positioning pin 41 located radially outward of the tenon 25.

[0044] The stirring rod of the embodiment of the present application includes a main body, a first telescopic rod and a tenon. The first telescopic rod can produce relative translational movement with the main body along the axial direction. The positioning pin is connected to the first telescopic rod, so the positioning pin can produce relative translational movement with the main body along the axial direction together with the first telescopic rod. The tenon is used to connect with the groove opened on the impeller to form a mortise and tenon structure; for example, when removing the stirring rod from the impeller, first remove the positioning pin that limits the radial position of the impeller and the stirring rod in the connected state, and then remove the mortise and tenon structure; when installing the stirring rod on the impeller, first pull the first telescopic rod in the direction away from the impeller to drive the positioning pin to move in the direction away from the impeller, so that the positioning pin does not interfere with the radial sliding of the tenon. After the mortise and tenon structure is connected in place, release the first telescopic rod to insert the positioning pin into the positioning hole to limit the radial position of the impeller and the stirring rod in the connected state, and install it in place at the same time. Therefore, when removing the stirring rod from the impeller or installing the stirring rod on the impeller, the first telescopic rod can be pulled away from the impeller to drive the positioning pin to move away from the impeller, thereby avoiding the positioning pin from interfering with the connection and disassembly of the mortise and tenon structure.

[0045] In some embodiments, as shown in Figures 2 and 4, the tenon 25 includes a trapezoidal portion 261, wherein one axial end of the trapezoidal portion 261 is the end of the tenon 25 away from the body 21, and the other axial end of the trapezoidal portion 261 is the end at which the tenon 25 is connected to the body 21; the cross-sectional area of ​​the trapezoidal portion 261 decreases from one end to the other axial end, and correspondingly, the cross-sectional area of ​​the groove 11 opened on the impeller 1 increases from the end close to the stirring rod 2 to the other end away from the stirring rod 2 in the axial direction. Therefore, when the tenon 25 is connected to the groove 11 opened on the impeller 1 to form a mortise and tenon structure 31, that is, after the tenon 25 slides into the groove 11 radially and cooperates with the groove 11, the tenon 25 is not easy to move axially and disengage. Specifically, when the tenon 25 moves along the direction of the open end of the axial groove 11, since the cross-sectional area of ​​the groove 11 gradually decreases as it approaches the open end, the groove 11 causes axial movement restriction on the portion of the tenon 25 with a relatively larger cross-sectional area, so that the tenon 25 cannot move axially and is confined in the groove 11. Furthermore, after the tenon 25 slides into the groove 11 in the radial direction and engages with the groove 11 , the stirring rod 2 and the impeller 1 are connected by the tenon and mortise structure 31 and are difficult to rotate in the circumferential direction.

[0046] The tenon of the embodiment of the present application includes a trapezoidal portion, and the cross-sectional area of ​​the trapezoidal portion decreases from one end to the other end in the axial direction. Correspondingly, the cross-sectional area of ​​the groove opened on the impeller increases from one end close to the stirring rod to the other end away from the stirring rod in the axial direction. Therefore, when the tenon moves along the direction of the open end of the axial groove, since the cross-sectional area of ​​the groove gradually decreases as it approaches the open end, the groove restricts the axial movement of the portion of the tenon with a relatively larger cross-sectional area, so that the tenon cannot move axially and is confined in the groove, thereby restricting the stirring rod and the impeller in the axial direction.

[0047] In some embodiments, as shown in Figures 2 and 3, one axial end of the groove 11 is the open end of the groove 11 close to the body 21; the cross-sectional area of ​​the groove 11 increases from the open end to the axially closed end. In other words, the cross-sectional area of ​​the groove 11 is smaller at the axially open end, and larger at the axially closed end. Therefore, when the tenon 25 is connected to the groove 11 on the impeller 1 to form a mortise and tenon structure 31, that is, after the tenon 25 slides radially into the groove 11 and engages with the groove 11, the tenon 25 is not easily dislodged in the axial direction. Specifically, when the tenon 25 moves in the direction of the open end of the axial groove 11, since the cross-sectional area of ​​the groove 11 gradually decreases as it approaches the open end, the groove 11 restricts the axial movement of the portion of the tenon 25 with a relatively larger cross-sectional area, so that the tenon 25 cannot move in the axial direction and is confined within the groove 11.

[0048] In some embodiments, as shown in Figures 2 and 4 , the first telescopic rod 23 includes a handle 231 and a rod body 232. A retractable first elastic member 27 is disposed axially between the handle 231 and the body 21. For example, the first elastic member 27 may be a spring. The rod body 232 is coaxially disposed with the handle 231 and connected to a side of the handle 231 away from the first elastic member 27. The end of the rod body 232 away from the handle 231 is connected to a positioning pin 41. Among them, when the stirring rod 2 is connected to the impeller 1, the initial state of the first elastic member 27 is a compressed state, and the first elastic member 27 presses the first telescopic rod 23 so that the positioning pin 41 is stably inserted into the positioning hole 42 to limit the radial position of the impeller 1 and the stirring rod 2 in the connected state, so that the stirring rod 2 and the impeller 1 are stably connected; when the stirring rod 2 is removed from the impeller 1 or the stirring rod 2 is installed on the impeller 1, the first telescopic rod 23 can be pulled in the direction away from the impeller 1 to drive the positioning pin 41 to move in the direction away from the impeller 1. At this time, the first elastic member 27 is further compressed. When the mortise and tenon structure 31 is installed or disassembled into place, the first telescopic rod 23 is released, the first elastic member 27 returns to its original state, and presses the first telescopic rod 23 so that the positioning pin 41 is inserted into the positioning hole 42, and the stirring rod 2 is installed in place; or the first telescopic rod 23 is released after the mortise and tenon structure 31 is disassembled, and the disassembly is completed at the same time.

[0049] The first telescopic rod of the embodiment of the present application includes a handle and a rod body, and a telescopic first elastic member is arranged between the handle and the main body in the axial direction. When the stirring rod is connected to the impeller, the first elastic member is initially in a compressed state, and the first elastic member presses the first telescopic rod so that the positioning pin is stably inserted into the positioning hole, thereby stably connecting the stirring rod and the impeller; when the stirring rod is removed from the impeller or installed on the impeller, the first telescopic rod can be pulled in a direction away from the impeller to drive the positioning pin to move in a direction away from the impeller, and the first elastic member is further compressed at this time. When the mortise and tenon structure is installed or disassembled into place, the first telescopic rod is released, the first elastic member returns to its original state, and presses the first telescopic rod so that the positioning pin is inserted into the positioning hole, and the stirring rod is installed in place; or the first telescopic rod is released after the mortise and tenon structure is disassembled, and the disassembly is completed at the same time. The pressure of the first elastic member ensures that the stirring rod and the impeller can be stably connected in the axial direction, and when the mortise and tenon structure is installed or removed into place, the first telescopic rod that is pulled to avoid the locating pin interfering with the connection of the mortise and tenon structure can be restored to its original shape under the pressure of the first elastic member, ensuring that the locating pin and the locating hole can also be installed or removed into place.

[0050] In some embodiments, as shown in FIG3 , the impeller 1 includes a base plate 12 and a connecting protrusion 14 . The base plate 12 is provided with a plurality of rotary blades 13 along the axial direction, and the plurality of rotary blades 13 are evenly arranged along the circumference. When the impeller 1 rotates, the plurality of rotary blades 13 increase the friction between the clothes and the impeller 1 , thereby the clothes and the impeller 1 rub against each other to remove dirt and clean. The connecting protrusion 14 is located at the center of the impeller 1 and is used to be detachably connected to the stirring rod 2 . The plurality of rotary blades 13 are arranged around the connecting protrusion 14 . The connecting protrusion 14 is provided with a radial groove 11 , the wall of which can abut against the wall of the tenon 25 , thereby limiting the circumferential rotation of the tenon 25 relative to the impeller 1 . The connecting protrusion 14 is provided with a positioning hole 42 located outside the groove 11 . The positioning holes 42 include a plurality of, for example, two, positioning holes 42 , and the two positioning holes 42 are located on both sides of the groove 11 .

[0051] The impeller of the embodiment of the present application includes a bottom plate and a connecting protrusion, and a plurality of rotating blades increase the friction between the clothes and the impeller, so that the clothes and the impeller rub against each other to remove dirt and clean; the connecting protrusion is provided with a radial groove, and the wall of the groove can abut against the wall of the tenon, thereby limiting the circumferential rotation of the tenon relative to the impeller; and the axial movement of the tenon is also limited by itself, and a positioning hole is provided on the connecting protrusion located outside the groove. When the positioning pin is inserted into the positioning hole, the radial movement of the tenon relative to the groove can be limited, so that the stirring rod and the impeller are restricted in the circumferential, axial and radial directions, and the clothes and the stirring rod rub in the water, resulting in the stirring rod being subjected to a larger rotational resistance borne by the mortise and tenon structure, and the mortise and tenon structure has sufficient structural strength, so that the connection between the impeller and the stirring rod is more stable, and in fact the radial force along the extension direction of the groove on the stirring rod is relatively small, so the positioning structure connected by the positioning pin and the positioning hole is sufficient to support the connection between the stirring rod and the impeller.

[0052] In some embodiments, as shown in FIG6 , the impeller 1 further includes a mortise and tenon pin 5, which can fill the groove 11 and be detachably connected to the connecting protrusion 14. The mortise and tenon pin 5 allows radial relative movement between the impeller 1 and the stirring rod 2 to connect and disconnect, and the mortise and tenon pin 5 limits the radial relative movement of the impeller 1 and the stirring rod 2, thereby limiting the radial position of the impeller 1 and the stirring rod 2 in the connected state. The impeller of the embodiment of the present application further includes a mortise and tenon pin, which can fill the groove and be detachably connected to the connecting protrusion, so that the gap generated on the impeller after the stirring rod is removed can be removably inserted by the mortise and tenon pin to prevent clothes from being entangled in the gap.

[0053] In some embodiments, as shown in Figures 6 and 7, the mortise and tenon pin 5 includes a pin body 51, a second telescopic rod 52, and a second elastic member 53. The outer shape of the mortise and tenon pin 5 is similar to the structure of a tenon. As shown in Figures 3 and 8, the pin body 51 has a first through hole 57 along the axial direction. The side wall of the pin body 51 can abut against the groove 11, thereby limiting the circumferential rotation of the pin body relative to the impeller and ensuring stable radial movement of the pin body relative to the impeller. The second telescopic rod 52 passes through the first through hole 57 and can move axially. The second elastic member 53 is sleeved outside the second telescopic rod 52 and located within the first through hole 57. The two ends of the second elastic member 53 respectively abut against the pin body 51 and the second telescopic rod 52. In the initial state, the second elastic member 53 is in a compressed state and presses the pin body 51 and the second telescopic rod 52 to their initial positions. When the second telescopic rod 52 moves axially, it drives the second elastic member 53 to move and be further compressed. When the second telescopic rod 52 is released, the second elastic member 53 recovers and drives the second telescopic rod 52 to return to its initial state. When the pin body 51 and the second telescopic rod 52 are in the initial position, the second telescopic rod 52 protrudes from the end of the pin body 51 close to the impeller 1, and the portion of the second telescopic rod 52 protruding from the pin body 51 can be inserted into the center hole of the impeller 1 to limit the relative movement of the impeller 1 and the mortise and tenon pin 5 in the radial direction, thereby limiting the radial position of the impeller 1 and the mortise and tenon pin 5 in the connected state. When installing or removing the mortise and tenon pin 5, it is necessary to first pull the second telescopic rod 52 in a direction away from the impeller 1 so that the second telescopic rod 52 does not protrude from the pin body 51, and then slide the pin body 51 radially to install it into the groove 11.

[0054] The mortise and tenon pin of the embodiment of the present application includes a pin body, a second telescopic rod and a second elastic member, the side wall of the pin body can abut against the groove, thereby limiting the circumferential rotation of the pin body relative to the impeller, so that the pin body can stably move radially relative to the impeller; the second telescopic rod protrudes from one end of the pin body close to the impeller, and the part of the second telescopic rod protruding from the pin body can be inserted into the center hole of the impeller to limit the relative movement of the impeller and the mortise and tenon pin in the radial direction, thereby limiting the radial position of the impeller and the mortise and tenon pin in the connected state; the pressure of the second elastic member ensures that the mortise and tenon pin and the impeller can be stably connected in the axial direction, and when the pin body is installed or removed into place, the second telescopic rod that is pulled to avoid the protruding part of the second telescopic rod interfering with the connection between the pin body and the groove can be restored to its original shape under the pressure of the second elastic member, ensuring that the protruding part of the second telescopic rod and the center hole of the impeller can also be installed or removed into place.

[0055] In some embodiments, as shown in FIG. 6 and FIG. 7 , a wall surface of the pin body 51 adjacent to the first through hole 57 is stepped, and the second telescopic rod 52 includes a column portion 521 and a handle portion 522 . The second elastic member 53 is sleeved on the outside of the side wall of the column 521, and the second elastic member 53 abuts against the step at one end of the wall surface of the pin body 51 adjacent to the first through hole 57 in the axial direction. The step at the wall surface of the pin body 51 adjacent to the first through hole 57 has two ends in the axial direction. Therefore, the second telescopic rod 52 moves in the space at both ends of the step at the wall surface of the pin body 51 adjacent to the first through hole 57 under the restriction of the protrusion 523; the handle portion 522 is connected to the end of the column portion 521 away from the impeller 1 in the axial direction. Pulling the handle portion 522 can drive the column portion 521 and the protrusion 523 to move axially together; the second elastic member 53 is sleeved on the outside of the side wall of the column portion 521, and the second elastic member 53 abuts between the protrusion 523 and the step at the other end, that is, the second elastic member 53 is located in the space at both ends of the step at the wall surface of the pin body 51 adjacent to the first through hole 57.

[0056] The second telescopic rod of the embodiment of the present application includes a column portion and a handle portion. The side wall of the column portion is provided with a protrusion extending outward, and the protrusion axially abuts against the step at one end of the wall surface of the pin body adjacent to the first through hole, and the second elastic member abuts between the protrusion and the step at the other end of the wall surface of the pin body adjacent to the first through hole, so that the second elastic member presses the protrusion to stabilize the column portion in the initial position, so that the part of the column portion protruding from the pin body can be stably inserted into the center hole of the impeller, thereby achieving stable limiting; the setting of the handle portion makes it convenient for holding the handle portion to pull the column portion to move axially.

[0057] In the second embodiment, as shown in Figures 9 and 10, a connecting structure 3 and a positioning structure 4 are provided on both the impeller 1 and the stirring rod 2 to achieve detachable connection between the impeller 1 and the stirring rod 2; the connecting structure 3 allows the impeller 1 and the stirring rod 2 to move along a first direction to connect and disconnect, and the first direction is the L1 direction shown in Figure 10. The connecting structure 3 provided on the impeller 1 and the connecting structure 3 provided on the stirring rod 2 cooperate with each other and are detachably connected, thereby achieving detachable connection between the impeller 1 and the stirring rod 2. As shown in Figures 9 and 10, the positioning structure 4 limits the positions of the impeller 1 and the stirring rod 2 when the connecting structure 3 between the impeller 1 and the stirring rod 2 is in the connected state. It can be understood that when the connecting structure 3 between the impeller 1 and the stirring rod 2 is in the connected state, the impeller 1 and the stirring rod 2 can still move along the first direction to disconnect, and the positioning structure 4 can limit the positions of the impeller 1 and the stirring rod 2 when the connecting structure 3 is connected, so that when the positioning structure 4 is limited in place, the impeller 1 and the stirring rod 2 can no longer move along the first direction to disconnect, so that the connection between the impeller 1 and the stirring rod 2 can be more stable and not easy to produce relative movement along the first direction.

[0058] As shown in Figures 9 and 10, the first direction corresponds to the radial direction that passes through the impeller 1 and the stirring rod 2, which means that the connecting structure 3 provided on the impeller 1 passes through the radial direction of the impeller 1, and the connecting structure 3 on the stirring rod 2 passes through the radial direction of the stirring rod 2. The angle between the first direction and the radial direction is a first preset acute angle, the radial direction is the L2 direction shown in Figure 10, and the first preset acute angle is the angle θ shown in Figure 10. When removing the stirring rod 2, the user can apply an oblique upward force to pull the stirring rod 2 to move, so that the stirring rod 2 is disconnected from the connecting structure 3 of the impeller 1; when installing the stirring rod 2 and the impeller 1, the user can apply an oblique downward force to push the stirring rod 2 to move, so that the connecting structure 3 of the stirring rod 2 is connected to the connecting structure 3 of the impeller 1.

[0059] The stirring rod and the impeller of the embodiment of the present application are detachably connected coaxially, so that the user can remove or install the stirring rod on the impeller according to actual washing needs; for example, when removing the stirring rod and the impeller, the positioning structure is first removed, and then the connecting structure is removed, so that the stirring rod and the impeller can move along the first direction to disconnect; because the angle between the first direction and the radial direction of the impeller and the stirring rod is a first preset acute angle, the stirring rod can move obliquely upward or obliquely downward relative to the impeller, and a washing tub is provided on the surrounding side of the stirring rod. When removing the stirring rod, the user can apply an oblique upward force to pull the stirring rod to move, so that the stirring rod is disconnected from the impeller. At this time, since the stirring rod moves obliquely upward, the stirring rod has a larger movement space and is not easily restricted by the wall of the washing tub, which facilitates the removal of the stirring rod and the impeller, and when the user pulls it with his hand, pulling the stirring rod obliquely upward facilitates the exertion of human muscles, which conforms to the setting of human body mechanics. When installing the stirring rod and the impeller, the user can apply an oblique downward force to push the stirring rod to connect with the impeller. The gravity of the stirring rod also makes it tend to move downward, which also facilitates the installation of the stirring rod and the impeller. The combined effect of the connecting structure and the positioning structure can ensure a stable connection between the impeller and the stirring rod. When the impeller drives the stirring rod to rotate together, the structure used to limit the impeller and the stirring rod is not easy to break, so that the stirring rod and the impeller can be stably limited and rotate together.

[0060] In some embodiments, as shown in Figures 9 and 10, the first preset acute angle θ is between 15 and 45 degrees. For example, the first preset acute angle θ can be 25 degrees. The first preset acute angle θ should not be too small, otherwise the user may pull the stirring rod 2 out in a generally radial direction when removing the stirring rod 2 from the impeller 1. This may cause the user to be restricted by the wall of the washing tub when removing the stirring rod, making it inconvenient for the user to operate. The first preset acute angle θ should not be too large, otherwise, when the stirring rod 2 is connected to the connecting structure 3 of the impeller 1, the stirring rod 2 will tend to move to one side in the first direction, for example, in the lower side of the first direction in the transverse direction. This will make it difficult for the connecting structure 3 of the stirring rod 2 to maintain balance when connected and have a strong tendency to move, thus requiring a strong positioning structure to maintain positioning. If the first preset acute angle θ is too large and the connecting structure 3 is too steep, the positioning structure 4 will require a large force to overcome gravity to position the impeller 1 and the stirring rod 2. Therefore, over time, the positioning structure may easily break and fail.

[0061] The first preset acute angle of the embodiment of the present application is between 15 degrees and 45 degrees. The size of the first preset acute angle is relatively appropriate, so that the stirring rod can move obliquely upward along the first direction to disengage from the impeller, which is convenient for user operation; the stirring rod has a certain tendency to move obliquely downward relative to the impeller, but because the size of the first preset acute angle is appropriate, its tendency to move obliquely downward is smaller, so the force required to be borne by the positioning structure during positioning is also smaller, and the positioning structure can better maintain the position of the stirring rod and the impeller when they are in the connected state, so that the stirring rod and the impeller are easy to disassemble and assemble, and the connection strength is also relatively reliable.

[0062] In some embodiments, as shown in Figures 9 and 10 , the width of the connecting structure 3 varies monotonically along a first direction. Monotonically varying means that the width of the connecting structure 3 increases or decreases continuously along the first direction, but the variation is not constant. The width of the connecting structure 3 increases as the height of the connecting structure 3 in the axial direction increases. The direction of the width is perpendicular to the first direction, which can be roughly understood as the longitudinal extension of the connecting structure 3. The direction of the width is direction L3 as shown in Figure 11 . It can be understood that the width of the connecting structure 3 is greater when it is at a higher position in the axial direction, and smaller when it is at a lower position in the axial direction. When installing the impeller 1 and the stirring rod 2, the connecting structure 3 of the stirring rod 2 can only be inserted into the connecting structure 3 of the impeller 1 from the end with the larger width, that is, it can only be installed by moving the connecting structure 3 from the high position to the low position in the axial direction, that is, it is installed by moving obliquely downward, until it moves to the end with the smaller width, the connecting structure 3 of the stirring rod 2 can no longer move, so that the stirring rod 2 can be connected to the connecting structure 3 of the impeller 1 in place, and the balance of the oblique downward movement of the stirring rod 2 can be maintained; when disassembling the impeller 1 and the stirring rod 2, the connecting structure 3 of the stirring rod 2 moves from the end with the smaller width to the end with the larger width, thereby disengaging from the connecting structure 3 of the impeller 1, that is, it moves from the low position to the high position in the axial direction of the connecting structure 3, that is, it moves obliquely upward for disassembly.

[0063] The connecting structure of the embodiment of the present application has a smaller width at the lower end in the axial direction, which can limit the tendency of the stirring rod to move obliquely downward relative to the impeller, and to a certain extent ensure the balance of the connecting structure between the stirring rod and the impeller when they are in place; and only one end of the connecting structure of the impeller can be inserted or detached, so as to prevent errors in the user's operation, allowing the user to disassemble and assemble the stirring rod and the impeller according to the operation method that conforms to ergonomics.

[0064] In some embodiments, as shown in Figures 9 and 10, the connection structure 3 includes a mortise and tenon structure 31 provided at one axial end of the stirring rod 2 and at one axial end of the impeller 1, so that the mortise and tenon structure 31 provided at one axial end of the stirring rod 2 and the mortise and tenon structure 31 provided at one axial end of the impeller 1 can be connected and disconnected. The mortise and tenon structure 31 is located in the middle area of ​​the impeller 1, so that the stirring rod 2 is connected to the middle area of ​​the impeller 1 through the mortise and tenon structure 31. When used in a clothing processing device, the stirring rod 2 is located in the middle area of ​​the barrel, so that when washing clothes, the friction force between the clothes in the barrel and the stirring rod 2 is relatively uniform. As shown in Figures 11 and 12, the positioning structure 4 is located in the corresponding mortise and tenon structure 31, that is, the positioning structure 4 is distributed within the range of the mortise and tenon structure 31. Then, when the mortise and tenon structure 31 of the impeller 1 and the stirring rod 2 are connected in place, the positioning structure 4 can be installed in place, so that the impeller 1 and the stirring rod 2 can be positioned within the range of the mortise and tenon structure 31, thereby limiting the position of the impeller 1 and the stirring rod 2 when connected with the mortise and tenon structure 31.

[0065] The mortise and tenon joint is a concave-convex connection method used on two components. The protruding part is called the tenon (or tenon head); the concave part is called the mortise (or mortise, tenon groove, or groove). The tenon and mortise interlock to form a connection. The mortise and tenon joint is a combination of tenons (tenons) and mortise (grooves). It is an ingenious combination of the number and height, height and length of components, which effectively restricts the twisting of wooden parts in all directions. The most basic mortise and tenon joint structure consists of two components, one of which has its tenon inserted into the mortise of the other, connecting and securing the two components. The part of the tenon that extends into the mortise is called the tongue, and the remaining part is called the shoulder.

[0066] The connection structure of the embodiment of the present application includes a mortise and tenon structure provided at one axial end of the stirring rod and one axial end of the impeller, so that the impeller and the stirring rod can move relative to each other along a first direction to achieve connection and disconnection between the impeller and the stirring rod, and the mortise and tenon structure connection makes the overall structure of the impeller and the stirring rod more secure; the positioning structure is located within the corresponding mortise and tenon structure, thereby limiting the position of the impeller and the stirring rod in the mortise and tenon structure connection state, so that the stirring rod and the impeller are not prone to relative movement in the first direction, the connection between the stirring rod and the impeller can be more stable, and the connection reliability of the impeller and the stirring rod is improved. The positioning structure is located within the corresponding mortise and tenon structure, so that the two are not prone to losing a large torque due to the long distance, the connection strength between the two is more reliable, and can withstand greater rotational resistance.

[0067] In some embodiments, as shown in Figures 12 and 13, the stirring rod 2 includes a body 21, a first telescopic rod 23 and a tenon 25. The tenon 25 can be detachably connected to the body 21 to replace the tenon 25 of appropriate size. In particular, in combination with Figure 10, the body 21 has a cavity 22 extending in the axial direction; the tenon 25 is used to form a connection with the groove 11 provided on the impeller 1 to form a mortise and tenon structure 31, that is, the tenon 25 slides into the groove 11 along the first direction, thereby connecting to the mortise and tenon structure 31; the tenon 25 is provided at the first end 24 protruding axially from the body 21, and the first end 24 refers to the end of the body 21 axially close to the impeller 1, and the tenon 25 extends along the first direction away from the end face S of the body 21; in combination with Figures 11 and As shown in FIG14 , the tenon 25 is provided with a second through hole 262 extending axially and communicating with the cavity 22. The second through hole 262 penetrates the tenon 25. The first telescopic rod 23 can move along the cavity 22 and the second through hole 262 to switch between a positioned state protruding from the tenon 25 and an unlocked state retracted into the second through hole 262 or the cavity 22. A tubular structure 28 can be provided within the cavity 22 to allow the first telescopic rod 23 to move within the tubular structure 28, thereby guiding the movement of the first telescopic rod 23. In the positioned state, the portion of the first telescopic rod 23 protruding from the tenon 25 forms a connection with the positioning structure 4 with the positioning hole 15 provided within the groove 11 of the impeller 1. It can be understood that when in the positioning state, the first telescopic rod 23 passes through the cavity 22 and the second through hole 262 and protrudes from the tenon 25 to be inserted into the positioning hole 15, thereby limiting the position of the mortise and tenon structure 31 of the impeller 1 and the stirring rod 2 in the connected state; when in the unlocked state, the first telescopic rod 23 retracts into the second through hole 262 or the cavity 22, at which time the impeller 1 and the stirring rod 2 are not restricted by the positioning structure 4, and the mortise and tenon structure 31 of the impeller 1 and the stirring rod 2 can move along the first direction to connect and disconnect.

[0068] The stirring rod of the embodiment of the present application includes a main body, a first telescopic rod and a tenon, the tenon is used to connect with the groove opened on the impeller to form a mortise and tenon structure connection, and the mortise and tenon structure connection makes the impeller and the stirring rod firmly connected; the first telescopic rod can move along the cavity and the second through hole to switch between a positioning state protruding from the tenon and an unlocked state retracted into the second through hole or the cavity; in the positioning state, the part of the first telescopic rod protruding from the tenon forms a positioning structure connection with the positioning hole opened inside the groove of the impeller; therefore, by extending and retracting the first telescopic rod back and forth along the axial direction, the positioning of the impeller and the stirring rod in the mortise and tenon structure connection state can be controlled, the structure is simple, and the operation is convenient, which is convenient for users to disassemble and assemble.

[0069] In some embodiments, as shown in Figures 13 and 14, one axial end of the tenon 25 is the end of the tenon 25 away from the body 21, and the other axial end of the tenon 25 is close to the end where the tenon 25 is connected to the body 21; the cross-sectional area of ​​the tenon 25 decreases from one end to the other axial end; as shown in Figure 11, one axial end of the groove 11 is the open end 16 of the groove 11 close to the body 21, and the other axial end of the groove 11 is the abutment end 17 of the groove 11 away from the body 21; the area of ​​the cross section perpendicular to the axial direction of the groove 11 increases from the open end 16 to the axial abutment end 17. That is to say, the cross-sectional area of ​​the groove 11 at the axial open end 16 is smaller, and the cross-sectional area of ​​the axial abutment end 17 is larger. Therefore, when the tenon 25 is connected to the groove 11 opened on the impeller 1 to form a mortise and tenon structure 31, that is, after the tenon 25 slides obliquely into the groove 11 along the first direction and cooperates with the groove 11, the tenon 25 is not easy to move axially and disengage. Specifically, when the tenon 25 moves along the direction of the axial open end 16 of the groove 11, since the cross-sectional area of ​​the groove 11 gradually decreases as it approaches the open end 16, the groove 11 causes axial movement restriction on the part of the tenon 25 with a relatively larger cross-sectional area, so that the tenon 25 cannot move axially and is confined in the groove 11.

[0070] The cross-sectional area of ​​the tenon in the embodiment of the present application decreases from one end away from the body to the other end in the axial direction. Correspondingly, the cross-sectional area of ​​the groove opened on the impeller increases from one end close to the stirring rod to the other end away from the stirring rod in the axial direction. Therefore, when the tenon moves axially toward the open end of the groove, the cross-sectional area of ​​the groove gradually decreases as it approaches the open end, and the groove restricts the axial movement of the portion of the tenon with a relatively larger cross-sectional area, so that the tenon cannot move axially and is confined in the groove, thereby restricting the stirring rod and the impeller in the axial direction.

[0071] In some embodiments, as shown in Figures 10 to 12, the first telescopic rod 23 includes a handle 231 and a rod body 232. The handle 231 is axially protruding from the second end 29 of the body 21. The second end 29 refers to the end of the body 21 axially away from the impeller 1. The rod body 232 is located in the cavity 22, coaxially arranged with the handle 231, and moves within the cavity 22 and the second through hole 262. The end of the rod body 232 away from the handle 231 forms a positioning structure 4 for the stirring rod 2. The handle 231 is provided with a snap structure 6 for detachably connecting to the body 21. For example, the snap structure 6 can be a structure that fits a slot and a snap. When the handle 231 is connected to the snap-fit ​​structure 6 of the main body 21, the rod body 232 partially protrudes from the tenon 25 and is inserted into the positioning hole 15. At this time, the position of the mortise and tenon structure 31 of the impeller 1 and the stirring rod 2 in the connected state can be limited; and when the impeller and the stirring rod need to be disassembled, the snap-fit ​​structure 6 of the handle 231 and the main body 21 is disassembled, the handle 231 is pulled upward, and the rod body 232 is retracted upward or into the cavity 22. At this time, the impeller 1 and the stirring rod 2 are not restricted by the positioning structure 4, and the mortise and tenon structure 31 of the impeller 1 and the stirring rod 2 are moved along the first direction to disconnect.

[0072] The first telescopic rod of the embodiment of the present application includes a handle and a rod body. The handle protrudes axially from the main body, and the handle is relatively large and roughly disc-shaped, which is convenient for users to hold and pull back and forth. In addition, the handle and the main body are connected by a snap-fit ​​structure, making it easy to assemble and disassemble. Not only is the structure simple and easy to process, but the connection is also relatively tight.

[0073] In some embodiments, as shown in Figures 10 and 11, the pulsator 1 includes a base plate 12 and a connecting protrusion 14. The base plate 12 is provided with a plurality of rotating blades 13 arranged evenly along the circumference. When the pulsator 1 rotates, the plurality of rotating blades 13 increase the friction between the clothes and the pulsator 1, thereby removing dirt and cleaning the clothes by friction with the pulsator 1. The connecting protrusion 14 is located at the center of the pulsator 1 and is used to detachably connect with the stirring rod 2. The plurality of rotating blades 13 are arranged around the connecting protrusion 14. A groove 11 is defined at the top of the connecting protrusion 14 and extends through the connecting protrusion 14 in a first direction. The wall of the groove 11 can abut against the wall of the tenon 25. When the tenon 25 slides obliquely into the groove 11 in the first direction and engages with the groove 11, the stirring rod 2 and the pulsator 1 are prevented from rotating in the circumferential direction due to the connection of the mortise and tenon structure 31, so that the stirring rod 2 and the pulsator 1 can only move in the first direction. The connecting protrusion 14 is provided with an axially extending positioning structure 4, namely a positioning hole 15, located at the bottom of the groove 11. The portion of the first telescopic rod 23 protruding from the tenon 25 can be axially inserted into the positioning hole 15, thereby positioning the connection state of the mortise and tenon structure 31.

[0074] The pulsator of the embodiment of the present application includes a bottom plate and a connecting protrusion, and a plurality of rotating blades increase the friction between the clothes and the pulsator, so that the clothes and the pulsator rub against each other to remove dirt and clean; the connecting protrusion is provided with a groove running through the first direction, and the wall surface of the groove can abut against the wall surface of the tenon, thereby limiting the circumferential rotation of the tenon relative to the pulsator; and the axial movement of the tenon is also restricted by itself, and a positioning hole extending axially is provided on the connecting protrusion at the bottom of the groove. When the first telescopic rod is inserted into the positioning hole, the movement of the tenon relative to the groove along the first direction can be restricted, so that the stirring rod and the pulsator are restricted in the circumferential, axial and radial directions, and the clothes and the stirring rod rub in the water, resulting in the stirring rod being subjected to a larger rotational resistance borne by the mortise and tenon structure, and the mortise and tenon structure has sufficient structural strength, so that the connection between the impeller and the stirring rod is more stable, and in fact, the resistance to the stirring rod along the first direction is small, so the positioning structure is sufficient to support the connection between the stirring rod and the pulsator.

[0075] In some embodiments, as shown in Figures 15 and 16, the impeller 1 further includes a mortise and tenon pin 5, which can fill the groove 11 and be detachably connected to the connecting protrusion 14. The mortise and tenon pin 5 includes a structure similar to a tenon, and the mortise and tenon pin 5 allows relative movement between itself and the impeller 1 along a first direction to connect and disconnect, and the mortise and tenon pin 5 also limits the position of itself and the impeller 1 in a connected state. The length of the mortise and tenon pin 5 is much smaller than the length of the stirring rod 2, and basically only has the function of filling the groove 11, and does not have the function of stirring. The impeller of an embodiment of the present application further includes a mortise and tenon pin, which can fill the groove and be detachably connected to the connecting protrusion, so that the gap generated on the impeller after the stirring rod is removed can be removably inserted by the mortise and tenon pin to prevent clothes from being entangled in the gap.

[0076] In some embodiments, as shown in Figures 17 and 18, the mortise and tenon pin 5 includes a pin body 51 and a second telescopic rod 52. The outer shape of the pin body 51 is similar to the structure of a tenon, that is, the pin body 51 has a section with an increasing cross-sectional area from the third end 54 away from the impeller 1 to the fourth end 55 axially close to the impeller 1. When normally placed, the pin body 51 has a section with an increasing cross-sectional area from top to bottom. Therefore, when the mortise and tenon pin 5 moves axially toward the open end 16 of the groove 11, that is, when it is pulled upward along the axial direction, since the cross-sectional area of ​​the groove 11 gradually decreases from bottom to top, the size of the pin body 51 is exactly matched with the size of the groove 11, and the portion with a larger cross-sectional area below the pin body 51 is difficult to move upward to the portion with a smaller cross-sectional area above the groove 11. The pin body 51 can only slide out of the groove 11 along the first direction, so that the mortise and tenon pin 5 cannot move axially and is confined within the groove 11. Among them, an axial channel 56 is opened inside the pin body 51, and the pin body 51 can abut against the wall of the groove 11, thereby limiting the circumferential rotation of the pin body 51 relative to the impeller 1, so that the pin body 51 can move stably along the first direction relative to the impeller 1.

[0077] As shown in Figures 17 and 18, the second telescopic rod 52 can pass through the channel 56 and move along the channel 56 to protrude from the pin body 51 and connect with the positioning structure 4 at the bottom of the groove 11, and retract into the channel 56 and disconnect from the positioning structure 4. The second telescopic rod 52 and the pin body 51 can also be detachably connected by the snap structure 6. When the second telescopic rod 52 is connected to the pin body 51, the portion of the second telescopic rod 52 protruding from the pin body 51 can be inserted into the positioning hole 15, which can limit the position of the impeller 1 and the mortise and tenon pin 5 in the connected state; when the impeller 1 and the mortise and tenon pin 5 need to be disassembled, the second telescopic rod 52 is disassembled from the pin body 51, and the second telescopic rod 52 is pulled upward and retracted upward into the channel 56. At this time, the impeller 1 and the mortise and tenon pin 5 are no longer restricted by the positioning structure 4, and the impeller 1 and the mortise and tenon pin 5 are then moved along the first direction to disconnect.

[0078] As shown in Figures 1-2 and 9-10, the embodiments of the present application also provide a clothing processing device. For example, the clothing processing device can be an agitator washing machine, etc. The clothing processing device includes a barrel and a pulsator assembly 10. The barrel has a receiving cavity for receiving clothing; the pulsator assembly 10 is located in the receiving cavity and the pulsator 1 is connected to the bottom of the barrel. When the clothing processing device is dehydrating, the pulsator 1 and the barrel rotate; when washing, the pulsator 1 rotates, the barrel does not rotate, and the pulsator 1 drives the stirring rod 2 to rotate together, thereby driving the water flow in the body and the movement of clothes; the moving water flow pushes the clothes to turn over continuously, so that the clothes, the clothes and the barrel wall and the stirring rod rub in the water, and the decontamination and cleaning are achieved under the action of the detergent.

[0079] The clothing processing device of the embodiment of the present application includes a barrel and a pulsator assembly, wherein the pulsator is connected to the bottom of the barrel. When washing clothes, the pulsator rotates forward and reverse and drives the stirring rod to rotate together, thereby driving the water flow in the body and the movement of clothes; the moving water flow pushes the clothes to turn continuously, causing friction between the clothes, the clothes and the inner wall surface of the barrel and the stirring rod in the water, and achieving decontamination and cleaning under the action of detergent. When the pulsator rotates forward and reverse and drives the stirring rod to rotate together, the friction between the clothes and the stirring rod in the water causes the stirring rod to be subjected to a large rotational resistance, so that the structure for limiting the impeller and the stirring rod needs to bear a large rotational resistance. The connection between the impeller and the stirring rod of the embodiment of the present application is stable, so that when the impeller drives the stirring rod to rotate together, the structure for limiting the impeller and the stirring rod is not easy to break, so that the stirring rod and the impeller can be stably limited and rotate together.

[0080] The above description is merely a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application. Industrial Applicability

[0081] The present application provides a pulsator assembly and a clothing processing device, wherein the pulsator assembly includes a pulsator and a stirring rod. The pulsator can rotate axially; the stirring rod is detachably coaxially connected to the pulsator; wherein, a connecting structure and a positioning structure are provided on both the pulsator and the stirring rod; the connecting structure allows the pulsator and the stirring rod to move along a first direction to connect and disconnect, and the positioning structure limits the position of the pulsator and the stirring rod in a connected state; the first direction corresponds to a radial direction passing through the pulsator and the stirring rod, and the angle between the first direction and the radial direction is a first preset acute angle or the first direction is the radial direction. In the embodiment of the present application, a connecting structure and a positioning structure are provided on both the pulsator and the stirring rod, so that the connecting structure and the positioning structure can double-limit the connection between the pulsator and the stirring rod, and the connection between the stirring rod and the pulsator can be more stable, thereby improving the reliability of the connection between the pulsator and the stirring rod.

Claims

1. A pulsator assembly, comprising: The impeller (1) is rotatable about an axial direction; A stirring rod (2), the stirring rod (2) being detachably coaxially connected to the impeller (1); Wherein, a connecting structure (3) and a positioning structure (4) are provided on the impeller (1) and the stirring rod (2); the connecting structure (3) allows the impeller (1) and the stirring rod (2) to move along a first direction to connect and disconnect, and the positioning structure (4) limits the position of the impeller (1) and the stirring rod (2) in a connected state; the first direction corresponds to a radial direction passing through the impeller (1) and the stirring rod (2), and the angle between the first direction and the radial direction is a first preset acute angle or the first direction is the radial direction.

2. The impeller assembly according to claim 1, wherein: The connection structure (3) comprises a mortise and tenon structure (31) arranged at one axial end of the stirring rod (2) and at one axial end of the impeller (1), wherein the mortise and tenon structure (31) is located in a middle area of ​​the impeller (1), and the mortise and tenon structure (31) corresponds to a radial direction that passes through the stirring rod (2) and the impeller (1).

3. The impeller assembly according to claim 2, wherein: The positioning structure (4) comprises a positioning pin (41) and a positioning hole (42) which are arranged outside the mortise and tenon structure (31).

4. The impeller assembly according to claim 3, wherein: The stirring rod (2) comprises: A body (21) having a cavity (22) therein; A first telescopic rod (23) is located in the cavity (22), is coaxially arranged with the body (21) and can move relatively in translation along the axial direction; the positioning pin (41) is connected to the first telescopic rod (23) and protrudes from the first end (24) of the body (21) in the axial direction; The tenon (25) is used to connect with the groove (11) provided on the impeller (1) to form the mortise and tenon structure (31); the tenon (25) is axially protruding from the first end (24) of the body (21), and the tenon (25) extends from one radial end to the other end of the body (21); the positioning pin (41) is located radially outside the tenon (25).

5. The impeller assembly according to claim 4, wherein: The tenon (25) comprises a trapezoidal portion (261), one axial end of the trapezoidal portion (261) being an end of the tenon (25) away from the body (21); and the cross-sectional area of ​​the trapezoidal portion (261) decreases from the one end to the other axial end.

6. The impeller assembly according to claim 5, wherein: One axial end of the groove (11) is an open end of the groove (11) close to the body (21); the cross-sectional area of ​​the groove (11) increases from the open end to the axial closed end.

7. The impeller assembly according to claim 4, wherein: The first telescopic rod (23) comprises: A handle (231) is provided with a retractable first elastic member (27) between the handle and the body (21) in the axial direction; The rod body (232) is coaxially arranged with the handle (231) and connected to a side of the handle (231) away from the first elastic member (27); one end of the rod body (232) away from the handle (231) is connected to the positioning pin (41).

8. The impeller assembly according to any one of claims 4 to 7, wherein: The impeller (1) comprises: A bottom plate (12), wherein the bottom plate (12) is provided with a plurality of rotating blades (13) along the axial direction; A connecting protrusion (14) is used to be detachably connected to the stirring rod (2), and a plurality of rotating blades (13) are arranged around the connecting protrusion (14); The connecting protrusion (14) is provided with a groove (11) extending radially therethrough, and the wall surface of the groove (11) can abut against the wall surface of the tenon (25); and the connecting protrusion (14) is provided with the positioning hole (42) located outside the groove (11).

9. The impeller assembly according to claim 8, wherein: The impeller (1) further comprises: A mortise and tenon pin (5) which can fill the groove (1) and be detachably connected to the connecting protrusion (14); The mortise and tenon pin (5) comprises: A pin body (51) having a first through hole (57) along the axial direction, and a side wall of the pin body (51) can abut against the groove (11); a second telescopic rod (52) passing through the first through hole (57) and being movable along the axial direction; The second elastic member (53) is sleeved outside the second telescopic rod (52) and is located in the first through hole (57), and two ends of the second elastic member (53) are respectively in contact with the pin body (51) and the second telescopic rod (52).

10. The impeller assembly according to claim 9, wherein: The wall surface of the pin body (51) adjacent to the first through hole (57) is in a step shape, and the second telescopic rod (52) comprises: A columnar portion (521), wherein a side wall of the columnar portion (521) is provided with a protruding portion (523) extending outward, and the protruding portion (523) abuts against a step at one end of the wall surface in the axial direction; The handle portion (522) is connected to one end of the column portion (521) in the axial direction; wherein the second elastic member (53) is sleeved outside the side wall of the column portion (521) and abuts between the protrusion (523) and the step at the other end of the wall surface.

11. The impeller assembly according to claim 2, wherein: When the angle between the first direction and the radial direction is a first preset acute angle, the first preset acute angle is between 15 degrees and 45 degrees.

12. The impeller assembly according to claim 11, wherein: The width of the connection structure (3) changes monotonically along the first direction and increases as the height of the connection structure (3) in the axial direction increases, and the direction in which the width lies is perpendicular to the first direction.

13. The impeller assembly according to claim 11 or 12, wherein: The positioning structure (4) is located in the corresponding mortise and tenon structure (31).

14. The impeller assembly according to claim 13, wherein: The stirring rod (2) comprises: A body (21), wherein the body (21) has a cavity (22) extending in the axial direction; a tenon (25) for connecting the tenon-and-mortise structure (31) with the groove (11) provided on the impeller (1); the tenon (25) is arranged at a first end (24) of the body (21) protruding axially, and the end surface of the tenon (25) away from the body (21) extends along the first direction; a second through hole (262) is provided inside the tenon (25) and extends axially and communicates with the cavity (22); The first telescopic rod (23) is movable along the cavity (22) and the second through hole (262) to The device switches between a positioning state of the tenon (25) and an unlocked state in which the tenon (25) is retracted into the second through hole (262) or the cavity (22); wherein, in the positioning state, the portion of the first telescopic rod (23) protruding from the tenon (25) and the positioning hole (15) provided inside the groove (11) of the impeller (1) form a connection with the positioning structure (4).

15. The impeller assembly according to claim 14, wherein: One axial end of the tenon (25) is the end of the tenon (25) away from the body (21); the cross-sectional area of ​​the tenon (25) decreases from the one end to the other axial end; one axial end of the groove (11) is the opening end (16) of the groove (11) close to the body (21), and the other axial end of the groove (11) is the abutting end (17) of the groove (11) away from the body (21); the area of ​​the cross section of the groove (11) perpendicular to the axial direction increases from the opening end (16) to the abutting end (17).

16. The impeller assembly according to claim 14, wherein: The first telescopic rod (23) comprises: A handle (231) is provided at the second end (29) of the body (21) and protrudes axially; A rod body (232) is located in the cavity (22), is coaxially arranged with the handle (231) and moves in the cavity (22) and the second through hole (262), and one end of the rod body (232) away from the handle (231) forms a positioning structure (4) of the stirring rod (2); Wherein, the handle (231) is provided with a snap-fit ​​structure (6) so as to be detachably connected to the body (21).

17. The impeller assembly according to any one of claims 13 to 16, wherein: The impeller (1) comprises: A bottom plate (12), wherein the bottom plate (12) is provided with a plurality of rotating blades (13) along the axial direction; A connecting protrusion (14) is used to be detachably connected to the stirring rod (2), and a plurality of rotating blades (13) are arranged around the connecting protrusion (14); The top end of the connecting protrusion (14) is provided with the groove (11) which penetrates the connecting protrusion (14) along the first direction, and the wall surface of the groove (11) can abut against the wall surface of the tenon (25); the connecting protrusion (14) is provided with the positioning structure (4) which is located at the bottom of the groove (11) and extends along the axial direction.

18. The impeller assembly according to claim 17, wherein: The impeller (1) further comprises: A mortise and tenon pin (5) which can fill the groove (11) and be detachably connected to the connecting protrusion (14); The mortise and tenon pin (5) comprises: A pin body (51) is provided with an axially penetrating passage (56) therein, and the pin body (51) can abut against the wall surface of the groove (11); The second telescopic rod (52) can penetrate the channel (56) and move along the channel (56) to protrude from the pin body (51) and connect with the positioning structure (4) at the bottom of the groove (11), and retract into the channel (56) and disconnect from the positioning structure (4).

19. A clothes processing device, comprising: A barrel body, wherein the barrel body has a receiving cavity for receiving clothes; The impeller assembly (10) according to any one of claims 1 to 18 is located in the accommodating cavity and the impeller (1) is connected to the bottom of the barrel body.

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