Washing apparatus

Abstract

A washing apparatus, comprising: a tub body (5), which has an accommodating cavity (51) with an opening at one end; and an agitating device (100), which is provided at the end of the accommodating cavity (51) away from the opening, wherein the agitating device (100) comprises an impeller (3), an agitating rod (1) and a flexible covering layer (2). The impeller (3) is rotatably connected to the tub body (5) by means of a rotary shaft. The agitating rod (1) comprises: a rod body (11), which extends in an axial direction of the rotary shaft, and one end of which in the axial direction is connected to the impeller (3); and blades (12), which protrude relative to a surface of the peripheral side of the rod body (11), the flexible covering layer (2) covering at least part of outer sides of the blades (12).

Description

A washing device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202310781312.X and application date on June 28, 2023, and the application number 202311405340.8 and application date on October 26, 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 field of washing technology, and more specifically, relates to a washing device. Background Art

[0004] Washing machines can be used to clean items such as clothing, shoes, and fruits and vegetables. Washing machines are a common type of washing machine. Based on their operating principle, washing machines on the market are primarily categorized into three types: drum, agitator, and pulsator. Agitator washing machines have a stirring rod with several blades located in the center of the inner drum. This stirring mechanism rotates 360°, rotating at varying speeds based on the texture, degree of soiling, and weight of the laundry. This mechanism rubs the laundry back and forth in the drum, thoroughly removing stains. However, these agitator-type washing machines can severely wear out the laundry, shortening its lifespan.

[0005] Summary of the Invention

[0006] In view of this, the present invention provides a washing device to solve the technical problem of how to reduce the wear of the washing device on the laundry.

[0007] The technical solution of the present invention is achieved as follows:

[0008] An embodiment of the present invention provides a washing device, comprising:

[0009] The barrel body has a receiving cavity with one end open;

[0010] A stirring device is provided at an end of the accommodating chamber away from the opening; wherein the stirring device comprises an impeller, a stirring rod and a flexible covering layer, and the impeller is rotatably connected to the barrel body via a rotating shaft;

[0011] The stirring rod comprises:

[0012] a rod body extending along the axial direction of the rotating shaft, wherein one end of the rod body in the axial direction is connected to the impeller;

[0013] The blade is provided on a surface protrusion relative to the peripheral side of the rod body; wherein the flexible covering layer covers at least a portion of the outer side of the blade.

[0014] In some embodiments, the flexible covering layer at least covers an edge of the blade away from the rod.

[0015] In some embodiments, the interior of the stirring rod is hollow, and the flexible covering layer covers at least a side of the blade close to the interior and a side away from the interior.

[0016] In some embodiments, a through hole is provided on the stirring rod, and the through hole passes through at least the inner and outer sides of the blade; and the flexible covering layer is provided through the through hole.

[0017] In some embodiments, the stirring rod and the flexible covering layer are integrally formed by injection molding, wherein the hardness of the flexible covering layer is less than the hardness of the stirring rod.

[0018] In some embodiments, the diameter of the through hole is greater than or equal to 1 mm and less than or equal to 3 mm.

[0019] In some embodiments, the cross-section of the through hole is circular.

[0020] In some embodiments, the flexible covering layer includes an inner layer, an outer layer and a connecting column, the inner layer covers the inner side of the stirring rod, the outer layer covers the outer side of the stirring rod, and the connecting column passes through the through hole and connects the inner layer and the outer layer.

[0021] In some embodiments, the thickness of the inner layer is less than the thickness of the outer layer; and / or, the thickness of the inner layer is 1 mm-1.8 mm, and the thickness of the outer layer is 1.8 mm-2.5 mm.

[0022] In some embodiments, the through hole includes a first through hole and a second through hole, the first through hole is provided at a position of the blade away from the rod body, and the second through hole is provided at another position on the blade;

[0023] Wherein, the diameter of the first through hole is greater than the diameter of the second through hole;

[0024] And / or, the density between the first through holes is greater than the density between the second through holes.

[0025] In some embodiments, the through hole further includes a third through hole and a fourth through hole, the third through hole is arranged at a position of the rod body close to the blade, and the fourth through hole is arranged at another position of the rod body;

[0026] Wherein, the diameter of the third through hole is greater than the diameter of the fourth through hole;

[0027] And / or, the density between the third through holes is greater than the density between the fourth through holes.

[0028] In some embodiments, the diameter of the first through hole is equal to the diameter of the third through hole; and / or the density between the first through holes is equal to the density between the third through holes.

[0029] In some embodiments, the spacing between the first through holes and / or the spacing between the third through holes is 8 mm-15 mm; the spacing between the second through holes and / or the fourth through holes is 15 mm-25 mm.

[0030] In some embodiments, the blades are curved in an arc shape.

[0031] An embodiment of the present invention provides a washing device, which includes a barrel and a stirring device. The barrel has a receiving cavity, and the stirring device is disposed in the receiving cavity. The stirring device includes a pulsator, a stirring rod, and a flexible covering layer. The pulsator is rotatably connected to the barrel via a rotating shaft. The stirring rod includes a rod body and blades. The rod body extends along the axial direction of the rotating shaft. One end of the rod body in the axial direction is connected to the pulsator. The blades are provided with raised surfaces relative to the circumference of the rod body. The flexible covering layer covers at least a portion of the outer side of the blades. In the embodiment of the present invention, by disposing the flexible covering layer at least on the outer side of the blades, the stirring device ensures structural strength and rotational stability while at least a portion of the surface of the stirring rod has a soft texture, which can simulate the force of a human hand to rub clothes, so that the clothes are rubbed more evenly during the washing process. In addition, the flexible covering layer covering the outer side of the stirring rod has a certain buffering effect on the stirring action of the water flow, which is beneficial to reducing wear on clothes, thereby helping to extend the service life of clothes. In addition, the embodiment of the present invention provides a flexible covering layer on the stirring device, and the stirring device and the barrel body are detachable, which can not only reduce the wear and tear of clothes, but also has a simple manufacturing process and high integration of the stirring device. The stirring device is suitable for existing washing equipment and can be interchangeable with the impeller in traditional washing equipment. There is no need to add new computer board software and hardware, saving development time and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG1 is a schematic structural diagram of a stirring device according to an embodiment of the present invention;

[0033] FIG2 is a schematic structural diagram of a stirring rod according to an embodiment of the present invention;

[0034] FIG3 is a schematic structural diagram of a stirring rod and a flexible coating layer according to an embodiment of the present invention;

[0035] FIG4 is a schematic cross-sectional view of a stirring device according to an embodiment of the present invention;

[0036] FIG5 is an enlarged view of portion A in FIG4 ;

[0037] FIG6 is a schematic structural diagram of a washing device according to an embodiment of the present invention.

[0038] Explanation of the accompanying reference numerals: 100, stirring device; 1, stirring rod; 10, through hole; 11, rod body; 12, blade; 2, flexible covering layer; 21, inner layer; 22, outer layer; 23, connecting column; 3, impeller; 4, decorative cover; 5, barrel body; 51, accommodating chamber. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be 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 the present invention and are not intended to limit the present invention.

[0040] 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 the present invention will not be described separately.

[0041] 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 directional descriptions "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.

[0042] 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.

[0043] The present invention provides a stirring device that can be used in washing machines, dishwashers, shoe washers, fruit and vegetable cleaning machines, and other washing appliances. It should be noted that the application scenario type of the present invention does not limit the structure of the stirring device of the present invention.

[0044] As shown in FIG1 , an embodiment of the present invention provides a stirring device, as shown in FIG1 to FIG3 , wherein the embodiment shown in FIG1 is a schematic diagram of the connection between the stirring rod 1 and the impeller 3. In some embodiments, the use of the stirring rod 1 and the impeller 3 in combination is beneficial to improving the efficiency of washing. In combination with FIG1 , FIG2 and FIG3 , the stirring device in the embodiment of the present invention includes a stirring rod 1, a flexible covering layer 2 and an impeller 3. The structure shown in FIG2 does not illustrate the flexible covering layer, but only illustrates the structure of the stirring rod 1. FIG6 shows a schematic diagram of the structure of the stirring device 100 set in the washing equipment. FIG6 takes the washing equipment as an example for explanation. The washing equipment in the embodiment of the present invention includes a barrel 5 and a stirring device 100. The barrel 5 has a receiving chamber 51 with an open end. The stirring device 100 is detachably arranged at the end of the receiving chamber 51 away from the opening. The stirring device 100 includes an impeller 3, a stirring rod 1 and a flexible covering layer 2. The impeller 3 is rotatably connected to the barrel 5.

[0045] In some embodiments, the stirring device 100 is detachably connected to the barrel body 5. Removability means that the stirring device 100 can be processed and manufactured as an independent spare part, and the production and manufacturing of the stirring device 100 can be separated from the barrel body 5. When the washing equipment is in normal use, the stirring device 100 is connected to the barrel body 5, and the stirring device 100 can move relative to the barrel body 5, thereby driving the clothes in the barrel body 5 to move, so as to simulate the rubbing action of the clothes.

[0046] The stirring device 100 in the embodiment of the present invention includes an impeller 3, a stirring rod 1 and a flexible covering layer 2. The impeller 3 is rotatably connected to the barrel 5, and the stirring rod 1 can be a columnar structure.

[0047] It should be noted that the stirring device 100 is rotatably disposed in the barrel, and the top end of the stirring shaft is connected to the stirring device 100 .

[0048] It is understood that when the washing device is in the washing state, the stirring shaft rotates, thereby driving the stirring device 100 to rotate. For example, in some embodiments, the washing device includes a motor and a reducer, and the motor shaft of the motor drives the stirring shaft to rotate through the reducer, thereby driving the stirring device 100 to rotate to achieve washing of the laundry.

[0049] It should be noted that during the washing process, the stirring device 100 rotates driven by the stirring shaft, and the washing drum may rotate or not rotate at this time, and there is no limitation here.

[0050] In some embodiments, the impeller 3 and the stirring shaft can be connected by a second connecting member. In this way, during the washing process of the washing device, the stirring shaft drives the impeller 3 to rotate, and the impeller 3 then drives the stirring rod 1 to rotate. In other words, the stirring shaft is not directly connected to the stirring rod 1, and the two are connected by the impeller 3. In this way, when the stirring rod 1 needs to be disassembled and cleaned, it only needs to be removed from the impeller 3. In addition, the second connecting member does not need to withstand the shear force caused by the torque between the impeller 3 and the stirring rod 1, and the connection between the impeller 3 and the stirring shaft is highly reliable.

[0051] As shown in Figures 1 and 2, when the stirring rod 1 and the impeller 3 are assembled for use, the lower end of the stirring rod 1 is detachably connected to the impeller 3, that is, the stirring rod 1 and the impeller 3 can be processed and manufactured separately, and the stirring rod 1 and the impeller 3 can be used as a whole after being matched and connected. There is no flexible coating layer at the position where the stirring rod 1 and the impeller 3 are matched and connected, so that the hard material of the stirring rod 1 itself is in contact with and connected to the hard material of the impeller 3, which is beneficial to improve the strength of the connection. In some embodiments, the stirring device also includes a decorative cover 4, which is detachably connected to the upper end of the stirring rod 1 to close the opening at the upper end of the stirring rod 1. The embodiment of the present invention does not limit the material and structure of the decorative cover 4.

[0052] In an embodiment of the present invention, as shown in FIG2 , the stirring rod 1 includes a rod body 11 and blades 12. The rod body 11 extends in the axial direction. In some embodiments, the rod body is roughly cylindrical, which is beneficial to improving processing efficiency. In addition, the symmetrical cylindrical structure is beneficial to reducing collisions and noises caused by eccentric motion, thereby improving the structural strength of the stirring rod 1. One end of the rod body 11 in the axial direction is detachably connected to the impeller 3. The blades 12 are provided on the surface of the circumferential side of the rod body 11, wherein the surface of the circumferential side of the rod body 11 refers to the surface of the rod body 11 arranged around the axial direction. The surface of the circumferential side can be understood as the side of the rod body 11, rather than the opposite end face of the rod body 11 arranged in the axial direction. Specifically, the rod body 11 has an end face and a side face, the end face refers to the face perpendicular to the axial direction, and the side face is the surface in the axial direction surrounding the rod body 11. In the embodiment of the present invention, a plurality of blades 12 may be provided, and the plurality of blades 12 are arranged at intervals in the circumferential direction of the rod body 11. During use of the stirring device, the protruding blades 12 contact and rub against the object to be cleaned, thereby achieving a kneading effect on the object to be cleaned. The embodiment of the present invention does not limit the specific shape of the blades 12. For example, the blades 12 can be flat or curved.

[0053] In some embodiments, the blades 12 are curved in an arc shape, that is, the blades are arc-shaped parts. The embodiments of the present invention set the blades as arc-shaped parts, which not only helps to reduce the wear of the blades on clothes, but also can play a better stirring role on the water flow, thereby ensuring the quality of cleaning.

[0054] The flexible covering layer 2 at least covers the outer side of the blade 12 , wherein the outer side of the blade 12 may be the outer side of the blade 12 in the radial direction or the outer side of the blade 12 in the thickness direction.

[0055] The outer side of the blade 12 is taken as an example to illustrate:

[0056] The radial direction refers to the direction extending from the center to the outer edge in a plane perpendicular to the axial direction of the rod body 11, wherein the position where the blade 12 is connected to the rod body 11 can be defined as the radial inner side of the blade 12, and the position where the blade 12 is away from the rod body 11 can be defined as the radial outer side of the blade 12. The flexible covering layer 2 at least covers the outer side of the blade 12, which can be understood as the flexible covering layer 2 being located at the outer edge of the blade 12 radially away from the rod body 11. When the stirring device is in use, the outer edge of the blade 12 is more likely to contact the laundry (clothing) in the barrel than the position where the blade 12 is connected to the rod body 11. Therefore, arranging the flexible covering layer 2 radially outside the blade 12 is beneficial to reducing wear on the clothes while reducing the production cost of the stirring device.

[0057] The outer side of the blade 12 is taken as an example to illustrate the outer side of the blade 12 in the thickness direction.

[0058] The blade 12 is hollow inside and has two opposite sides in the thickness direction. The side of the blade 12 close to the internal hollow position can be defined as the inner side of the blade 12, and the side of the blade 12 away from the internal hollow position can be defined as the outer side of the blade 12. The flexible covering layer 2 in the embodiment of the present invention can be at least arranged on the outer side of the blade 12 away from the internal hollow position.

[0059] An embodiment of the present invention provides a washing device, which includes a barrel body and a stirring device. The barrel body has a receiving cavity, and the stirring device is detachably disposed in the receiving cavity. The stirring device includes a pulsator, a stirring rod, and a flexible covering layer. The pulsator is rotatably connected to the barrel body. The stirring rod includes a rod body and blades. The rod body extends axially, and one end of the rod body in the axial direction is detachably connected to the pulsator. The blades are provided with raised surfaces relative to the circumferential direction of the rod body, and the flexible covering layer at least covers the outside of the blades. In the embodiment of the present invention, by arranging the flexible covering layer at least on the outside of the blades, the stirring device ensures structural strength and rotational stability while at least the surface texture of the blades is soft, which can simulate the force of human hands to rub clothes, so that the clothes are rubbed more evenly during the washing process. In addition, the flexible covering layer covering the outside of the stirring rod has a certain buffering effect on the stirring action of the water flow, which is beneficial to reducing wear on clothes, thereby helping to extend the service life of clothes. Moreover, the embodiment of the present invention provides a flexible covering layer on the outer side of at least the blades of the stirring device, and the stirring device and the barrel body are detachable, which can reduce the wear of clothes, and the manufacturing process of the stirring device is simple and highly integrated. The stirring device is suitable for existing washing equipment and can be interchangeable with the impeller in traditional washing equipment. There is no need to add new computer board software and hardware, saving development time and cost.

[0060] In some embodiments, as shown in FIG4 , the interior of the stirring rod 1 is hollow. It should be noted that the term “hollow” means that the stirring rod 1 is configured as a hollow component, and the stirring rod 1 is generally a component with uniform wall thickness. The wall thickness of the stirring rod 1 refers to the thickness between the inner and outer sides of the stirring rod 1. The blade 12 is also a hollow component with uniform wall thickness, rather than a solid component. The flexible coating layer 2 at least coats the inner and outer sides of the blade 12. As shown in FIG4 , the flexible coating layer 2 can only coat the inner and outer sides of the blade 12. The flexible coating layer 2 can also coat both the inner and outer sides of the blade 12 and the inner and outer sides of the rod body 11. It should be noted that the coating in the embodiment of the present invention means that the flexible coating layer 2 is located on the inner side of the stirring rod 1 and the outer side of the stirring rod 1, and the flexible coating layer 2 is attached to and combined with the inner and outer surfaces of the stirring rod 1 to form a tight connection relationship. Among them, the stirring rod 1 is hollow, that is, the blade 12 can be hollow, so that the blade 12 is roughly a thin-walled part (of course, the embodiment of the present invention does not limit the thickness of the blade), the inner side of the blade 12 represents the side facing the hollow area of ​​the blade 12, and the outer side of the blade 12 represents the side away from the hollow area of ​​the blade 12; the rod body 11 is also hollow, so that the rod body 11 is roughly a thin-walled part (of course, the embodiment of the present invention does not limit the thickness of the rod body), the inner side of the rod body 11 represents the side facing the hollow area of ​​the rod body 11, and the outer side of the rod body 11 represents the side away from the hollow area of ​​the rod body 11.

[0061] The embodiment of the present invention facilitates the integrated setting of the flexible covering layers on both sides by covering the flexible covering layer 2 at least on the inner and outer sides of the blade, thereby improving the stability of the connection between the flexible covering layer and the stirring rod and reducing the risk of the flexible covering layer falling off.

[0062] In some embodiments, as shown in Figures 2-4, a stirring rod 1 is provided with a through hole 10 that extends through both the inner and outer sides of a blade 12. "Through" means that the through hole 10 connects the inside and the outside of the blade 12. In the embodiment shown in Figure 2, the stirring rod 1 is hollow, and the through hole 10 connects the hollow area inside the stirring rod 1 with the outside of the stirring rod 1. Furthermore, the flexible coating layer 2 extends through the through hole 10. "The flexible coating layer 2 extends through the through hole 10" means that the flexible coating layer 2 fills and passes through the through hole 10. The through hole 10 connects the flexible coating layers 2 on both the inner and outer sides of the blade 12, allowing them to be connected. In embodiments of the present invention, multiple through holes 10 are provided. That is, the number of through holes 10 provided can be one or more. If a through hole 10 is also provided in the rod body 11, the through hole 10 extends through both the inner and outer sides of the rod body 11. The number of through holes 10 provided in embodiments of the present invention can be determined based on the size, structural curvature, or position of the rod body 11 and blade 12. For example, if the rod body 11 and blades 12 are relatively large, the number of through holes 10 may be increased. Alternatively, the density of through holes 10 may be increased at locations where the curvature of the stirring rod changes significantly (e.g., the end of blade 12 away from rod body 11, or the location where blade 12 connects to rod body 11) compared to locations where the curvature changes slightly. In this embodiment of the present invention, by increasing the density of through holes, the connection strength between the inner and outer flexible covering layers at locations where the curvature changes significantly is increased, thereby improving the stability of the connection between the flexible covering layer and the stirring rod.

[0063] The greater the number of through holes 10 , the more stable the connection between the rod 11 or the blade 12 and the flexible covering layer 2 .

[0064] The embodiment of the present invention provides a through hole in the stirring rod so that the flexible covering layer not only covers the inner and outer sides of the blade or rod, but also uses the through hole to realize the connection between the flexible covering layers on the inner and outer sides. The flexible covering layers on the inner and outer sides can be tightly covered on the surface of the blade or rod, and the flexible covering layer passing through the through hole connects the flexible covering layers on the inner and outer sides, so that a stable connection relationship is formed between the flexible covering layers on the inner and outer sides, which is beneficial to enhancing the adhesion strength between the flexible covering layer and the blade or rod, reducing the risk of the flexible covering layer falling off relative to the blade or rod, and extending the service life of the stirring device.

[0065] In some embodiments, as shown in Figures 1 to 4, the stirring rod 1 and the flexible coating layer 2 are integrally formed by two-color injection molding, wherein the hardness of the flexible coating layer 2 is less than the hardness of the stirring rod 1. Specifically, the stirring rod 1 and the flexible coating layer 2 in the embodiment of the present invention are formed by a composite of two different materials, and the structural hardness of the flexible coating layer 2 is less than the hardness of the stirring rod 1. In some embodiments, the flexible coating layer 2 is set to a flexible material such as thermoplastic polyurethane elastomer (TPU), so that the flexible coating layer 2 has strong elasticity, wear resistance and toughness. In the embodiment of the present invention, by setting the flexible coating layer 2 as a flexible material, during the use of the stirring device, the flexible coating layer 2 on the outside of the stirring rod 1 contacts the object to be cleaned, and has a certain elasticity, which is conducive to reducing the impact and wear on the object to be cleaned and improving the integrity of the object to be cleaned itself. The flexible coating layer 2 and the stirring rod 1 in the embodiment of the present invention are injection molded twice using a two-color injection molding machine, and the flexible coating layer 2 and the stirring rod 1 are bonded and compatible with two compatible materials with different hardnesses, and compatibility is achieved during the processing process. The embodiment of the present invention realizes the integral injection molding of the stirring rod 1 and the flexible covering layer 2 by adopting the two-color injection molding method, which is beneficial to reducing the material cost of the entire stirring device while improving the production efficiency of the entire stirring device. For the mold for processing the stirring device, it solves the problem that the two molds of the stirring rod 1 and the flexible covering layer 2 cannot be mass-produced due to the particularity of the structure. The two-color injection molding is used to process the stirring rod 1 and the flexible covering layer 2, eliminating the assembly process of the stirring rod 1 and the flexible covering layer 2, reducing the joint between the stirring rod 1 and the flexible covering layer 2, and can also improve the connection strength between the stirring rod 1 and the flexible covering layer 2, enhance the wear resistance of the stirring device, and extend the service life of the stirring device.

[0066] In some embodiments, as shown in FIG5 , the diameter of the through hole 10 is greater than or equal to 1 mm and less than or equal to 3 mm. It should be noted that the embodiments of the present invention do not limit the cross-sectional shape of the through hole 10. The cross-sectional shape of the through hole 10 refers to a cross-section perpendicular to the extension direction of the through hole 10. The extension direction of the through hole 10 refers to the direction in which the through hole 10 penetrates both the inner and outer sides. When the through hole 10 is provided in the blade 12, the extension direction of the through hole 10 is the direction in which the through hole 10 penetrates the thickness of the blade 12. When the through hole 10 is provided in the rod 11, the extension direction of the through hole 10 is the direction in which the through hole 10 penetrates both the inner and outer sides of the rod 11. The cross-sectional shape of the through hole may be circular. The diameter of the through hole 10 defined in the embodiment of the present invention represents the diameter of the cross section of the through hole 10. When the cross section of the through hole 10 is circular, the diameter of the through hole 10 is the diameter of the circular cross section. When the cross section of the through hole 10 is non-circular, the diameter of the through hole 10 is the diameter of the equivalent circle of the through hole, wherein the equivalent circle represents a circle with the same area as the cross section of the through hole, and the equivalent diameter of the through hole 10 is calculated based on the equivalent circle. It should be noted that, when the wall thickness of the stirring rod 1 is constant, the larger the diameter of the through hole 10, the larger the corresponding volume of the through hole 10, and the stronger the connection strength of the flexible coating layer 2 at the through hole 10 to the flexible coating layers 2 on both sides. However, if the diameter of the through hole 10 is too large, during the injection molding process, the material after filling the mold cools and solidifies from the outer surface, and the volume shrinkage is difficult to compensate, which easily causes shrinkage in the through hole 10, thereby forming a seam between the stirring rod and the flexible coating layer, affecting the connection strength and service life of the stirring device. By limiting the diameter of the through hole 10 to the range of 1 mm to 3 mm, the embodiment of the present invention can not only improve the connection strength of the flexible coating layers inside and outside the stirring rod, but also reduce the risk of shrinkage in the through hole, which is beneficial to improving the overall quality of the stirring device.

[0067] It should be noted that the diameter of the through hole 10 in the embodiment of the present invention can be set to 1.5 mm, 1.8 mm, 2 mm, etc. By setting the diameter of the through hole 10 to the above parameter value, it is beneficial to improve the quality of the entire stirring device.

[0068] In some embodiments, as shown in FIG2 , the cross section of the through hole 10 is circular. In the embodiment of the present invention, the cross section of the through hole 10 is set to a circular shape, and the through hole 10 is set to a cylindrical structure, and the diameter of the through hole 10 is consistent in the inner and outer directions of the stirring rod 1. This makes the stress of the flexible coating formed at each position in the through hole 10 after injection molding uniform, and is not prone to stress concentration, which is beneficial to improving the structural stability of the flexible coating. When the cross section of the through hole 10 is set to a square or other shape, due to the difference in the distance from the cross section to the center, the flexible coating injected into the through hole 10 is prone to stress concentration, and is easily broken by impact at the position where the stress is concentrated, thereby affecting the service life of the flexible coating.

[0069] In some embodiments, as shown in Figure 4, the flexible covering layer 2 includes an inner layer 21, an outer layer 22 and a connecting column 23. The inner layer 21 of the flexible covering layer 2 is coated on the inner side of the stirring rod 1, and the inner side of the stirring rod 1 can be understood as the inner side of the blade 12 and / or the inner side of the rod body 11 described in the above embodiment. The outer layer 22 is coated on the outer side of the stirring rod 1, and the outer side of the stirring rod 1 can be understood as the outer side of the blade 12 and / or the outer side of the rod body 11 described in the above embodiment. And the outer side faces the outside world, wherein, when the stirring device is in use, the outer side of the stirring rod 1 is the side facing the object to be cleaned. The connecting column 23 passes through the through hole 10 and connects the inner layer 21 and the outer layer 22. The connecting column 23 in the embodiment of the present invention is integrally formed with the inner layer 21 and the outer layer 22, and the connecting column 23 connects the inner layer 21 and the outer layer 22, which can not only improve the structural strength of the entire flexible covering layer 2, but also improve the connection strength between the flexible covering layer 2 and the stirring rod 1. The flexible covering layer 2 is not easy to fall off from the stirring rod 1, thereby extending the service life of the stirring device.

[0070] In some embodiments, as shown in FIG4 , the thickness of the inner layer 21 of the flexible covering layer 2 is less than the thickness of the outer layer 22 of the flexible covering layer 2. The thickness of the outer layer 22 of the flexible covering layer 2 is uniform, and the thickness of the inner layer 21 of the flexible covering layer 2 is uniform. The thickness of the inner layer 21 of the flexible covering layer 2 is thinner than the thickness of the outer layer of the flexible covering layer 2. The outer layer 22 of the flexible covering layer 2 is the portion of the flexible covering layer 2 that contacts the object to be cleaned. The thicker outer layer 22 of the flexible covering layer 2 is advantageously used to improve the elasticity and softness of the outer layer 22, thereby easily reducing the wear of the outer layer 22 of the flexible covering layer on the object to be cleaned during use of the stirring device. Furthermore, the thicker outer layer 22 improves the molding flowability of the outer layer 22 during production, which is advantageously used to improve processing quality. In the embodiment of the present invention, by setting the thickness of the inner layer 21 of the flexible covering layer 2 to be smaller than the thickness of the outer layer 22 of the flexible covering layer 2, the inner layer 21 of the flexible covering layer 2 does not need to contact the object to be cleaned, and therefore does not require high softness and elasticity. On the premise of ensuring that the inner layer 21 of the flexible covering layer 2 can form a connection relationship with the outer layer 22 through the connecting column 23, the processing consumables of the inner layer of the flexible covering layer 2 can also be reduced, thereby helping to reduce the processing cost and molding cycle of the entire stirring device.

[0071] In some embodiments, as shown in FIG5 , the thickness L1 of the inner layer 21 of the flexible covering layer 2 is 1 mm to 1.8 mm. For example, the thickness L1 of the inner layer 21 of the flexible covering layer 2 in the embodiment of the present invention is set to 1.5 mm, and the thickness L2 of the outer layer 22 of the flexible covering layer 2 is 1.8 mm to 2.5 mm. For example, the thickness of the flexible covering layer 2 is set to 2 mm. The thickness of the inner layer 21 of the flexible covering layer 2 can be set to be less than the thickness of the outer layer 22. By limiting the thickness of the inner layer 21 and the outer layer 22 of the flexible covering layer 2 within a certain range, the embodiment of the present invention can improve the flexibility of the contact between the stirring device and the object to be cleaned, reduce wear on the object to be cleaned during the cleaning process, reduce the production cost of the stirring device, and improve the efficiency of processing and molding.

[0072] In some embodiments, as shown in FIG2 , a plurality of through holes 10 are provided on the blade 12, wherein the embodiment of the present invention divides the through holes on the blade 12 into two types, namely, a first through hole and a second through hole, wherein the first through hole is provided at a position on the blade 12 away from the rod body 11, and the second through hole is provided at other positions on the blade 12. It should be noted that the layout of the through holes 10 shown in FIG2 is only used as a structural schematic, and the parameters such as the through hole spacing and through hole size arranged in FIG2 will not limit the embodiment of the present invention. In the embodiment of the present invention, the diameter of the first through hole is greater than the diameter of the second through hole, or the density between the first through holes is greater than the density between the second through holes, that is, the stirring The diameter of the first through hole at the position where the blade 12 on the rod 1 is away from the rod body 11 is larger than the diameter of the second through hole at other positions. It should be noted that one end of the blade 12 is connected to the rod body 11, and the other end of the blade 12 is away from the rod body 11. During the use of the stirring device, the frequency and intensity of contact with the object to be cleaned at this position are relatively large. The embodiment of the present invention increases the connection strength between the outer layer 22 and the inner layer 21 of the flexible covering layer 2 in the area by setting the diameter of the first through hole in the area to be larger than the diameter of the second through hole at other positions, thereby improving the wear resistance of the outer layer 22 of the flexible covering layer 2 in the area and reducing the risk of warping of the outer layer 22 in the area due to friction.

[0073] In some embodiments, as shown in FIG2 , the density between the first through holes in the embodiment of the present invention is greater than the density between the second through holes, that is, the number of first through holes per unit area in the region is greater than the number of second through holes per unit area in other regions. Alternatively, it can be understood that the spacing between the first through holes in the region is smaller than the spacing between the second through holes in other regions. In the embodiment of the present invention, by making the density of the first through holes at the position where the blades 12 on the stirring rod 1 are away from the rod body 11 greater than the density of the second through holes at other positions, it is beneficial to increase the connection strength between the outer layer 22 and the inner layer 21 of the flexible covering layer 2 in the region, thereby improving the wear resistance of the outer layer 22 of the flexible covering layer 2 in the region and reducing the risk of the outer layer 22 in the region warping due to friction.

[0074] In some embodiments, as shown in FIG2 , when a through hole is also provided on the rod body 11, the embodiment of the present invention divides the through holes on the rod body 11 into two types, namely, a third through hole and a fourth through hole. The third through hole is provided at a position on the rod body 11 near the blade 12, and the fourth through hole is provided at other positions on the rod body 11. In the embodiment of the present invention, the diameter of the third through hole is larger than the diameter of the fourth through hole. In other words, the diameter of the third through hole at the position of the rod body 11 near the blade 12 is larger than the diameter of the fourth through hole at other positions. During use of the stirring device, the blade 12 is more likely to contact the object to be cleaned than the rod body 11. The blade 12 transmits the stress received by the blade 12 to the rod body 11. The stress is more concentrated at the connection between the rod body 11 and the blade 12 due to the large change in curvature. Therefore, by providing the third through hole at the connection position of the blade 12 and the rod body 11 with a larger diameter than the fourth through hole at other positions, the connection strength between the flexible coating and the stirring rod in this area is enhanced, thereby reducing the risk of the flexible coating warping.

[0075] In some embodiments, as shown in FIG2 , the density of the third through holes at the position of the rod body 11 near the blade 12 (which can be understood as the position where the rod body 11 is connected to the blade 12) is greater than the density of the fourth through holes at other positions of the rod body 11. That is to say, the number of third through holes set per unit area in this region is greater than the number of fourth through holes set per unit area in other regions. Or it can be understood that the spacing of the third through holes in this region is smaller than the spacing of the fourth through holes in other regions. In the embodiment of the present invention, by making the density of the third through holes at the position where the blade 12 is connected to the rod body 11 on the stirring rod 1 greater than the density of the fourth through holes at other positions, it is beneficial to increase the connection strength between the outer layer 22 and the inner layer 21 of the flexible covering layer 2 in this region and reduce the risk of warping of the outer layer 22 in this region.

[0076] In some embodiments, as shown in FIG2 , the spacing between the first through holes at the position where the blade 12 is away from the rod body 11 and / or the third through holes at the position where the blade 12 is connected to the rod body 11 can be equal, and the spacing between the second through holes can be equal to the spacing between the fourth through holes. In some embodiments, the spacing between the third through holes or the spacing between the fourth through holes can be set to 8mm-15mm; the range described by the above two positions is consistent with the range described in the previous embodiment. That is, the friction intensity between the flexible coating layer and the external object to be cleaned within the above two areas is relatively high, or the stress concentration is formed inside the stirring rod due to structural changes. Therefore, the spacing between the through holes in the above two areas is set to 8mm-15mm, and the spacing between the through holes at other positions on the stirring rod 1 (such as the second through hole or the fourth through hole) is set to 15mm-25mm. The smaller the spacing between the through holes, the stronger the connection between the inner layer and the outer layer, which is conducive to improving the structural strength and wear resistance of the flexible coating.

[0077] An embodiment of the present invention provides a washing device, which includes the stirring device described in any of the above embodiments. The embodiment of the present invention provides the stirring device described in any of the above embodiments in the washing device, and the stirring device provides a through hole on the stirring rod, so that the flexible coating layer is on the inside and outside of the blade 12 or the rod body 11. The through hole on the stirring rod is also used to achieve the connection between the flexible coating layers on the inside and outside of the blade 12 or the rod body 11. The flexible coating layers on the inside and outside can be tightly coated on the surface of the blade 12 or the rod body 11. The flexible coating layers passing through the through hole play a connecting role for the flexible coating layers on the inside and outside, so that a stable connection relationship is formed between the flexible coating layers on the inside and outside, which is conducive to enhancing the adhesion strength between the flexible coating layer and the stirring rod, reducing the risk of the flexible coating layer falling off relative to the stirring rod, and extending the service life of the stirring device. In addition, during the cleaning process of the washing device, the stirring device contacts the object to be cleaned, which is conducive to reducing the risk of the stirring device being worn by the cleaning object.

[0078] It should be noted that the washing equipment in the embodiments of the present invention includes, but is not limited to, washing machines, dishwashers, shoe washers, and fruit and vegetable cleaning machines. By incorporating a stirring device into the washing equipment, the washing efficiency and cleanliness of the washing equipment can be improved. Referring to FIG6 , the following describes the application of the stirring device in a washing machine as an example. The washing machine includes a barrel 5 , which includes a chamber 51 for accommodating laundry to be cleaned. A stirring device 100 is disposed within the chamber 51 . During laundry processing, the stirring device 100 comes into contact with the laundry to be cleaned. By incorporating the stirring device 100 described in any of the above embodiments, the stirring device 100 can rotate back and forth relative to the barrel 5 during the cleaning process, simulating a human hand kneading the laundry in the chamber 51 . The stirring device also includes a pulsator 3 connected to a stirring rod. The pulsator 3 in the embodiments of the present invention can be configured to be the same size as the pulsators in existing washing machine products, which facilitates the adaptation of the stirring device in the embodiments of the present invention to existing washing machine models and allows for replacement of the pulsators in existing models, thereby facilitating the implementation of differentiated product layouts. In addition, the system can be driven without changing the layout of existing computer software, hardware, clutch, motor and other equipment, which helps save development time and costs.

[0079] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A washing device, comprising: The barrel body has a receiving cavity with an opening at one end; A stirring device is arranged at one end of the accommodating cavity away from the opening; wherein the stirring device comprises a pulsator, a stirring rod and a flexible covering layer, and the pulsator is rotatably connected to the barrel body through a rotating shaft; The stirring rod comprises: A rod body extending along the axial direction of the rotating shaft, wherein one end of the rod body in the axial direction is connected to the impeller; The blade is arranged to be raised relative to the surface of the circumference of the rod body; wherein the flexible covering layer covers at least a part of the outer side of the blade.

2. The washing device according to claim 1, wherein: The flexible covering layer at least covers the edge of the blade away from the rod body.

3. The washing device according to claim 1, wherein: The interior of the stirring rod is hollow, and the flexible covering layer covers the side of the blade close to the interior and the side away from the interior.

4. The washing device according to claim 1, wherein: The stirring rod is provided with a through hole, and the through hole at least penetrates the inner and outer sides of the blade; and the flexible covering layer is arranged to penetrate the through hole.

5. The washing device according to claim 4, wherein: The stirring rod and the flexible covering layer are integrally formed by injection molding, wherein the hardness of the flexible covering layer is smaller than the hardness of the stirring rod.

6. The washing device according to claim 4, wherein: The diameter of the through hole is greater than or equal to 1 mm and less than or equal to 3 mm.

7. The washing device according to claim 4, wherein: The cross section of the through hole is circular.

8. The washing device according to claim 4, wherein: The flexible covering layer comprises an inner layer, an outer layer and a connecting column, wherein the inner layer covers the inner side of the stirring rod, the outer layer covers the outer side of the stirring rod, and the connecting column penetrates the through hole and connects the inner layer and the outer layer.

9. The washing device according to claim 8, wherein: The thickness of the inner layer is smaller than the thickness of the outer layer; and / or the thickness of the inner layer is 1 mm-1.8 mm, and the thickness of the outer layer is 1.8 mm-2.5 mm.

10. The washing device according to claim 9, wherein: The through hole comprises a first through hole and a second through hole, the first through hole is arranged at a position of the blade away from the rod body, and the second through hole is arranged at other positions on the blade; Wherein, the diameter of the first through hole is greater than the diameter of the second through hole; And / or, the density between the first through holes is greater than the density between the second through holes.

11. The washing device according to claim 10, wherein: The through holes further include a third through hole and a fourth through hole, wherein the third through hole is arranged at a position of the rod body close to the blade, and the fourth through hole is arranged at other positions of the rod body; Wherein, the diameter of the third through hole is greater than the diameter of the fourth through hole; And / or, the density between the third through holes is greater than the density between the fourth through holes.

12. The washing device according to claim 11, wherein: The diameter of the first through hole is equal to the diameter of the third through hole; and / or the density between the first through holes is equal to the density between the third through holes.

13. The washing device according to claim 12, wherein: The spacing between the first through holes and / or the spacing between the third through holes is 8 mm-15 mm; the spacing between the second through holes and / or the fourth through holes is 15 mm-25 mm.

14. The washing device according to any one of claims 1 to 13, wherein: The blades are arranged in an arc shape.

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