A washing machine agitator structure

Abstract

The present invention belongs to the technical field of washing machines, and particularly relates to a washing machine impeller structure, which includes a disc-shaped impeller panel. A plurality of stirring ridges are fixedly arranged radially on the impeller panel. A plurality of upright water guide vanes are arranged radially on the back of the impeller panel. A back plate of the impeller is buckled and arranged on the back side of the impeller panel. A water guide cavity is formed by mutual buckling between the back plate of the impeller and the impeller panel. The back plate of the impeller is provided with a water inlet, and a plurality of water outlet holes are arranged on the front of the impeller panel. The water inlet and each water outlet hole are communicated with the water guide cavity, and a filter screen is arranged inside each water outlet hole. Through the design of the impeller structure, the washing water can be churned and circulated from bottom to top, reducing the wear of clothes; when the washing machine drains water, the filter screen is self-cleaned and rinsed in the reverse direction, saving the trouble of manual cleaning, avoiding the residue of dirt and breeding bacteria, and ensuring the safety of clothes and the health of the human body.

Description

Technical Field

[0001] The present invention belongs to the technical field of washing machines, and particularly relates to a wave wheel structure of a washing machine. Background Art

[0002] With the improvement of people's living standards and the progress of home appliance research and development technology, fully automatic washing machines have entered thousands of households. There are mainly two types of fully automatic washing machines on the market: drum washing machines and wave wheel washing machines. Among them, the lint and dirt remaining after the use of existing wave wheel washing machines need to be manually cleaned by removing the filter box in time, which not only increases the labor intensity but also reduces the consumer experience. If not cleaned in time or forgotten to be cleaned, the dirt is likely to breed bacteria or even rot and stink in the humid and shaded environment inside the washing machine, affecting the safety of clothes and human health. Moreover, the areas under the wave wheel of the wave wheel washing machine and between the washing tub and the outer shell are also prone to dirt residue. However, these parts are difficult to clean and usually require professional maintenance personnel to come to the door for thorough disassembly and cleaning, and a certain service fee needs to be paid for each cleaning. In addition, the washing principle of the wave wheel washing machine mainly relies on the friction between clothes and clothes, as well as the friction between clothes and the inner wall of the washing tub and the wave wheel to achieve the purpose of washing clothes. This results in a common problem with wave wheel washing machines, that is, although the washing cleanliness is relatively high, the wear and damage to clothes are also relatively large. Summary of the Invention

[0003] In view of the above situation, the present invention provides a wave wheel structure of a washing machine. Through the design of the wave wheel structure, the washing circulating water is realized to tumble from bottom to top, thereby reducing the wear of clothes. At the same time, the washing water is filtered through the wave wheel, and the wave wheel also has a self-cleaning function, saving the trouble of manual cleaning of the filter screen.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A wave wheel structure of a washing machine includes a disc-shaped wave wheel panel. A plurality of stirring ridges are radially fixed on the front surface of the wave wheel panel. A plurality of upright water guiding blades are radially arranged on the back surface of the wave wheel panel. A wave wheel back plate is buckled and arranged on the back side of the wave wheel panel. A water guiding cavity is formed by the mutual buckling between the wave wheel back plate and the wave wheel panel. The wave wheel back plate is provided with a water inlet, and a plurality of water outlet holes are opened on the front surface of the wave wheel panel. The water inlet and each of the water outlet holes are communicated with the water guiding cavity.

[0006] Further, a filter screen is arranged inside each of the water outlet holes. The filter screen can be a filter screen integrally laid on the uneven back surface of the wave wheel panel, or a small filter screen separately arranged in each of the water outlet holes. The filter screen can be laid on the back surface of the wave wheel panel as an independent component, or integrally cast and fixed on the back surface of the wave wheel panel with the wave wheel panel.

[0007] Furthermore, the impeller back plate is fixedly connected to the impeller panel by a plurality of mounting screws, and the back side of the impeller panel is fixedly provided with fixing nuts corresponding to each of the mounting screws; each of the fixing nuts can be integrally cast with the impeller panel, or can be a separate nut fixedly embedded in the back side of the impeller panel.

[0008] Furthermore, a closed cofferdam which is engaged with the impeller panel is integrally provided on one side edge of the impeller back plate facing the water guiding cavity. After the impeller back plate and the impeller panel are engaged with each other, the outer circumferential seam of the water guiding cavity can be better sealed, so that the water guiding cavity forms a relatively closed annular cavity.

[0009] Furthermore, a water-guiding spacer engaged with each of the water-guiding blades is integrally fixed between the closed cofferdam and the water inlet. After each of the water-guiding spacers and the water-guiding blades are engaged with each other, the water-guiding cavity is evenly divided from an annular cavity into a corresponding number of fan-shaped chambers.

[0010] Furthermore, the impeller panel is provided with 3 to 6 stirring ridges, which may be 3, 4, 5 or 6 stirring ridges, each stirring ridge is integrally formed and evenly arranged on the impeller panel, and is mainly used to stir the washing water and clothes in the washing tub.

[0011] Preferably, four stirring ridges are arranged on the front of the impeller panel, and a water-guiding blade is arranged in each of the four back grooves corresponding to the four stirring ridges, for driving the circulating water inside the impeller to rotate, and then centrifugally swinging it out from the water outlet hole of the impeller into the washing tub.

[0012] The present invention also includes other components that enable it to be used normally, all of which are conventional means in the field. In addition, devices or components not limited in the present invention, such as the power mechanism, washing tub structure, water inlet structure, drainage structure and control system of the washing machine, all adopt the existing technology in the field.

[0013] The beneficial effects of the present invention are as follows:

[0014] The washing machine impeller structure provided by the present invention realizes the circulation of washing water from bottom to top through the unique structural design of the impeller, so that the clothes float and avoid sinking to the bottom, thereby reducing the friction and entanglement between the clothes and the impeller, and reducing the probability of clothes being damaged during the washing process; and the washing circulating water is forward filtered when passing through the impeller, and the impeller filter is reversely flushed when the washing machine drains, thereby realizing self-cleaning of the washing machine filter, eliminating the trouble of manual cleaning of the traditional washing machine filter, improving the consumer experience, and avoiding the hair and dirt remaining in the washing machine to breed bacteria, thereby ensuring the safety of clothes and human health. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic exploded view of the agitator structure of the washing machine in Embodiment 1.

[0016] Figure 2 It is a schematic exploded view of the agitator structure of the washing machine in Embodiment 2.

[0017] Figure 3 It is a schematic exploded view of the agitator structure of the washing machine in Embodiment 3.

[0018] Figure 4 It is Figure 3 a schematic enlarged view of part A in

[0019] Figure 5 It is Figures 1 - 3 a schematic internal structure view of the agitator back plate in Specific embodiments

[0020] Next, specific embodiments will be combined to clearly and completely describe the technical solutions of the present invention. Obviously, the described embodiments are only partial embodiments of the present invention, rather than all embodiments.

[0021] It should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", etc. is based on the drawings shown, only for the convenience of description.

[0022] Embodiment 1

[0023] As Figure 1 and Figure 5 shown, a washing machine agitator structure includes a disc-shaped agitator panel 1. Four stirring ridges 3 are radially fixed on the front surface of the agitator panel. Along the length direction of each of the back grooves 4 corresponding to the stirring ridges, a vertical water guide blade 5 is fixedly provided in the middle. A back plate 2 of the agitator is buckled on the back side of the agitator panel. A water guide cavity is formed by the mutual buckling between the back plate of the agitator and the agitator panel. An inlet 6 is opened at the center of the back plate of the agitator. A plurality of outlet holes 7 are opened on the front surface of the agitator panel. The inlet and each of the outlet holes are communicated with the water guide cavity.

[0024] The back plate of the agitator is fixedly connected to the agitator panel by a plurality of mounting screws 8. Fixing nuts 9 corresponding to each of the mounting screws are fixedly provided on the back surface of the agitator panel; each of the fixing nuts is integrally cast with the agitator panel.

[0025] A sealed cofferdam 11 that is integrally cast and buckled with the agitator panel is provided on one side edge of the back plate of the agitator facing the water guide cavity. After the back plate of the agitator and the agitator panel are mutually buckled, the water guide cavity forms a relatively sealed annular cavity.

[0026] A water guide partition strip 12 that is integrally fixed between the sealed cofferdam and the water inlet and is buckled with each of the water guide vanes. After each water guide partition strip and the water guide vane are buckled with each other, the water guide cavity is evenly divided into four fan-shaped chambers.

[0027] Embodiment 2

[0028] As Figure 2 and Figure 5 As shown, a washing machine impeller structure includes a disc-shaped impeller panel 1. Four stirring ridges 3 are radially fixed on the front surface of the impeller panel. Along the length direction of the corresponding back groove 4 of each stirring ridge, an upright water guide vane 5 is fixed. A wave wheel back plate 2 is buckled and arranged on the back side of the impeller panel. A water guide cavity is formed by the mutual buckling between the wave wheel back plate and the impeller panel. An inlet 6 is opened at the center of the wave wheel back plate. A plurality of water outlet holes 7 are opened on the front surface of the impeller panel. The inlet and each water outlet hole are both communicated with the water guide cavity.

[0029] A filter screen 10 is arranged inside each water outlet hole. The filter screen is a layer of filter screen integrally laid on the uneven back surface of the impeller panel (i.e., the water inlet side of each water outlet hole).

[0030] The wave wheel back plate is fixedly connected to the impeller panel through a plurality of mounting screws 8. Fixing nuts 9 corresponding to each mounting screw are fixed on the back surface of the impeller panel. Each fixing nut is integrally cast with the impeller panel.

[0031] On one side edge of the wave wheel back plate facing the water guide cavity, a sealed cofferdam 11 that is integrally cast with the impeller panel is provided. After the wave wheel back plate and the impeller panel are buckled with each other, the water guide cavity forms a relatively sealed annular cavity.

[0032] A water guide partition strip 12 that is integrally fixed between the sealed cofferdam and the water inlet and is buckled with each of the water guide vanes. After each water guide partition strip and the water guide vane are buckled with each other, the water guide cavity is evenly divided into four fan-shaped chambers.

[0033] Embodiment 3

[0034] As Figures 3 - 5As shown in the figure, a washing machine impeller structure includes a disc-shaped impeller panel 1. On the front of the impeller panel, four stirring ridges 3 are radially and fixedly arranged. Along the length direction of the corresponding back groove 4 of each stirring ridge, an upright water guide blade 5 is fixedly arranged in the middle. A disc-shaped impeller back plate 2 is buckled on the back side of the impeller panel. A water guide cavity is formed by the mutual buckling between the impeller back plate and the impeller panel. An inlet 6 is opened at the center of the impeller back plate, and a plurality of water outlet holes 7 are opened on the front of the impeller panel. The inlet and each water outlet hole are both communicated with the water guide cavity.

[0035] A filter screen 10 is arranged inside each water outlet hole. The filter screen is a small filter screen separately arranged in each water outlet hole, and each filter screen is integrally cast with the impeller panel.

[0036] The impeller back plate is fixedly connected with the impeller panel through a plurality of mounting screws 8. Fixing nuts 9 corresponding to each mounting screw are fixedly arranged on the back of the impeller panel. Each fixing nut is a separate nut inlaid and fixed on the back of the impeller panel.

[0037] On the side edge of the impeller back plate facing the water guide cavity, a sealed cofferdam 11 buckling with the impeller panel is integrally cast. After the impeller back plate and the impeller panel are mutually buckled, the water guide cavity forms a relatively sealed annular cavity.

[0038] A water guide partition strip 12 buckling with each water guide blade is integrally fixed between the sealed cofferdam and the inlet. After each water guide partition strip and the water guide blade are mutually buckled, the water guide cavity is evenly divided into four fan-shaped chambers.

[0039] The working principle of the present invention is as follows:

[0040] When the washing machine works normally, with the rotation of the impeller, the washing water is stirred by the water guide blades. Under the action of centrifugal force, it is thrown out from each water outlet hole above the impeller panel. At this time, a negative pressure state appears in each chamber of the relatively closed impeller water guide cavity. Then, the washing water below the impeller back plate is sucked into each chamber of the impeller from the central inlet, and then thrown out by the rotation of the impeller and sucked into the impeller chamber again. In this way, the cycle is repeated to continuously stir the washing water and clothes in the washing tub. And when the washing water tumbles upward through the water outlet holes of the impeller from bottom to top, the lint and stains mixed in the washing water will be blocked by the filter screen in the impeller chamber, thus realizing the purification of the circulating water. When the washing machine drains water, the washing water flows through each water outlet hole of the impeller from top to bottom, and at the same time, the impeller filter screen is reversely washed. The lint and stains on the lower side of the filter screen are washed away and discharged with the water flow, thus realizing the self-cleaning of the impeller filter screen.

[0041] The technical solution of the present invention is not limited to the limitations of the above specific embodiments. Without departing from the scope and spirit of the described embodiments, many modifications and changes are obvious to those of ordinary skill in the art. Any technical transformation made within the spirit and principle of the present invention falls within the protection scope of the present invention.

Claims

1. A washing machine impeller structure, including a disc-shaped impeller panel, on the front surface of which a plurality of stirring ridges are radially fixed, characterized in that: A plurality of upright water guide vanes are radially arranged on the back surface of the impeller panel. A back plate of the impeller is snap-fitted to the back side of the impeller panel. A water guide cavity is formed by the snap-fitting between the back plate of the impeller and the impeller panel. A water inlet is provided at the center of the back plate of the impeller. A plurality of water outlet holes are provided on the front surface of the impeller panel. The water inlet and each of the water outlet holes are communicated with the water guide cavity. A filter screen is arranged inside each of the water outlet holes. A sealed cofferdam that is snap-fitted to the impeller panel is integrally cast on one side edge of the back plate of the impeller facing the water guide cavity. After the back plate of the impeller and the impeller panel are snap-fitted to each other, the water guide cavity forms a relatively sealed annular cavity. A water guide partition strip that is snap-fitted to each of the water guide vanes is integrally fixed between the sealed cofferdam and the water inlet. After each of the water guide partition strips and the water guide vanes are snap-fitted to each other, the water guide cavity is evenly divided into a plurality of fan-shaped chambers.

2. The structure of the washing machine agitator according to claim 1, wherein: The back plate of the impeller is fixedly connected to the impeller panel by a plurality of mounting screws. Fixing nuts corresponding to the mounting screws are fixed on the back surface of the impeller panel.

3. The structure of the washing machine agitator according to claim 1, characterized in that: 3 to 6 stirring ridges are arranged on the impeller panel.

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