A nozzle, a top cover and a pulsator washing machine

Abstract

The application provides a nozzle, a top cover and a pulsator washing machine, and belongs to the technical field of fabric treatment equipment. The nozzle is provided with a plurality of spray openings, and the spray openings can spray water in different directions. The multi-angle spray design enables the water flow to cover a wider area inside the washing machine, including different parts of the clothes and the pulsator disc and the inner drum wall. Compared with the traditional single-direction water spraying nozzle, the clothes and the drum wall can be more comprehensively washed, effectively removing dirt and washing liquid residues, and improving the washing degree. In addition, the plurality of spray openings can also be designed to spray water at different spray speeds. This means that during the washing process, different areas can receive different degrees of water flow impact as needed.

Description

Technical Field

[0001] This application relates to the field of fabric processing equipment technology, and more specifically, to a spray nozzle, top cover, and pulsator washing machine. Background Technology

[0002] Currently, the water outlet structure of top-loading washing machines is simple, only serving to connect water to the washing drum. Moreover, the water outlet angle is singular, which cannot effectively rinse the impeller and clothes inside the drum, resulting in problems such as poor rinsing effect and detergent residue. Utility Model Content

[0003] This application provides a spray head and a pulsator washing machine. The spray head has multiple spray nozzles that can spray water in different directions. This multi-angle spray design allows the water flow to cover a wider area inside the washing machine, including different parts of the clothes, the pulsator, and the inner drum wall. Compared to traditional spray heads that spray water in one direction, it can more thoroughly rinse the clothes and drum wall, effectively removing dirt and detergent residue, and improving cleaning power. Furthermore, the multiple spray nozzles can be designed to spray water at different speeds. This means that during the washing process, different areas can receive different levels of water flow impact as needed. For example, for dirtier areas, a higher spray speed can be used for powerful cleaning; while for cleaner areas, a lower spray speed can be used to avoid excessive wear and tear on the clothes, while also better protecting the fiber structure of the clothes and extending their lifespan. Specifically: The first aspect of this application provides a spray head for installation on the top cover of a pulsator washing machine, enabling it to spray water onto the interior of the washing machine from top to bottom. The spray head includes: The nozzle body has a water flow channel inside and an inlet and a spray nozzle on its surface that are connected to the water flow channel. The machine has multiple spray nozzles, which are configured to create a multi-angle spray water flow that covers multiple different washing areas when the nozzles are installed on the top cover of the washing machine and spray water.

[0004] In the above technical solution, the multiple spray nozzles are also configured such that when the spray nozzles are installed on the top cover of the pulsator washing machine and spray, the multiple spray nozzles can provide spray speed and / or spray flow corresponding to different cleaning areas of the pulsator washing machine, and the multiple cleaning areas include at least the pulsator disc, the inner drum wall and the cavity between the inner and outer drums.

[0005] In the above technical solution, multiple spray nozzles are constructed with different apertures and / or shapes.

[0006] In the above technical solution, the multiple spray nozzles include a front spray nozzle located away from the water inlet and a rear spray nozzle located close to the water inlet. The front spray nozzle is used to spray the inside of the washing machine's inner drum, while the rear spray nozzle is used to spray the cavity between the inner and outer drums of the washing machine.

[0007] In the above technical solution, the front spray nozzle includes a front middle spray nozzle located at the middle of the end of the nozzle body, and a front left spray nozzle and a front right spray nozzle distributed on the left and right sides of the front middle spray nozzle. The front middle spray nozzle is used to spray the middle part of the inner cylinder and / or the front and rear side walls of the inner cylinder. The front left spray nozzle is used to spray the left side wall of the inner cylinder located to the left of the front middle spray nozzle. The front right spray nozzle is used to spray the right side wall of the inner cylinder located to the right of the front middle spray nozzle.

[0008] In the above technical solution, the front middle spray nozzle is designed as an elongated waist-shaped nozzle with a length dimension of L3 and a width dimension of L4. The inner diameter of the nozzle body is d, and the size of the front middle spray nozzle must meet the following requirements: L3≥1 / 2*d, 1 / 10*L3≤L4≤2 / 3*L3.

[0009] In the above technical solution, the length of the front left spray nozzle is L1 and the width is L5; The dimensions of the front left spray nozzle must meet the following requirements: L1≤d-L4, 1 / 10*L1≤L5≤L1.

[0010] In the above technical solution, the length of the front right spray nozzle is L2 and the width is L6; The dimensions of the front right spray nozzle must meet the following requirements: L2≤d-L4, 1 / 10*L2≤L6≤*L2.

[0011] In the above technical solution, the nozzle body has a first end and a second end that are opposite each other in its axial direction; The nozzle also includes a mounting structure for connecting to the top cover of the washing machine. The mounting structure is disposed on the outer peripheral surface between the first end and the second end of the nozzle body, and the mounting structure divides the nozzle body into a water inlet section between the first end and the mounting structure, and a spray section between the mounting structure and the second end. The water inlet section is provided with a water inlet connector at the first end, the spray section is provided with a front spray nozzle at the second end, and the spray section is provided with a rear spray nozzle on its outer circumference. Preferably, the mounting structure includes a snap-fit ​​structure for engaging with the top cover of a pulsator washing machine.

[0012] The second aspect of this application also provides a top cover for installation on the top of a pulsator washing machine, wherein the top cover is provided with the nozzle provided in the first aspect of this application.

[0013] The third aspect of this application provides a pulsator washing machine, which includes the top cover provided in the second aspect of this application.

[0014] In the above technical solution, the pulsator washing machine includes a washing drum with a clothes inlet at the top, and a top cover disposed at the clothes inlet. The spray nozzles are located on the top cover and are used to spray different parts of the washing drum from top to bottom.

[0015] In the above technical solution, the washing drum includes an outer drum and an inner drum that can be pivotally disposed in the outer drum; The front spray nozzle on the nozzle body is used to spray the inside of the inner cylinder, and the rear spray nozzle on the nozzle body is used to spray the cavity formed between the inner cylinder and the outer cylinder. Preferably, the front middle spray nozzle in the front spray nozzle is used to spray the middle position of the inner cylinder and / or the front and rear side walls of the inner cylinder, the front left spray nozzle in the front spray nozzle is used to spray the left side wall of the inner cylinder distributed to the left of the front middle spray nozzle, and the front right spray nozzle is used to spray the right side wall of the inner cylinder distributed to the right of the front middle spray nozzle.

[0016] In the above technical solution, the nozzle is located at the edge of the inner cylinder and extends downwards towards the center of the inner cylinder, and the elongated waist-shaped spray nozzle at the front center of the nozzle body extends and opens along the vertical direction of the inner cylinder. An angle θ1 is formed between the upper edge of the front middle spray nozzle and the vertical line passing through the center of the front middle spray nozzle, and an angle θ2 is formed between the lower edge of the front middle spray nozzle and the vertical line passing through the center of the front middle spray nozzle, where 0°≤θ1≤30° and θ2≤90°. and / or An angle θ3 is formed between the axis of the front left spray nozzle and the vertical line passing through the center of the front middle spray nozzle, where 0°≤θ3≤90°; and / or An angle θ4 is formed between the axis of the front right spray nozzle and the vertical line passing through the center of the front middle spray nozzle, where 0°≤θ4≤90°; and / or The distance between the central axis of the inner cylinder and the vertical line passing through the center of the front middle spray nozzle is L4, 50mm≤L4≤300mm; and / or The pulsator washing machine also includes a balance ring, with the nozzle positioned above the balance ring, and the distance between the lowest point of the nozzle and the balance ring is L3, where 0mm≤L3≤100mm.

[0017] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: The spray head in this embodiment has multiple spray nozzles that can spray water in different directions. This multi-angle spray design allows the water flow to cover a wider area inside the washing machine, including different parts of the clothes, the impeller, and the inner drum wall. Compared to traditional spray heads that spray water in one direction, it can more thoroughly rinse the clothes and drum wall, effectively removing dirt and detergent residue, and improving cleaning power. Furthermore, the multiple spray nozzles can be designed to spray water at different speeds. This means that during the washing process, different areas can receive different levels of water flow impact as needed. For example, a higher spray speed can be used for more powerful cleaning of dirtier areas, while a lower spray speed can be used for cleaner areas to avoid excessive wear and tear on the clothes, while also better protecting the fiber structure of the clothes and extending their lifespan. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the nozzle in the embodiment of the nozzle in this application. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the nozzle in the embodiment of the nozzle in this application. Figure 2 ; Figure 3 This is a schematic diagram of the front view structure of the nozzle in the embodiment of the nozzle of this application; Figure 4 This is a bottom view of the assembly structure of the nozzle and top cover in an embodiment of the pulsator washing machine of this application; Figure 5 This is a side sectional view of the assembly of the nozzle and top cover in an embodiment of the pulsator washing machine of this application; Figure 6 This is a schematic diagram of the three-dimensional structure of the washing drum in the embodiment of the pulsator washing machine of this application. Figure 1 ; Figure 7 This is a schematic diagram of the three-dimensional structure of the washing drum in the embodiment of the pulsator washing machine of this application. Figure 2 The diagram shows the direction of water spray from the nozzle. Figure 8 This is a schematic diagram of the longitudinal section of the washing drum along the front-to-back direction in an embodiment of the pulsator washing machine of this application; Figure 9 This is a schematic diagram of the longitudinal section of the washing drum along the left-right direction in an embodiment of the pulsator washing machine of this application.

[0019] in: 100-Sprinkler body; 100a-Water inlet section; 100b-Spray section; 101-Water inlet; 102-Spray nozzle; 1021-Front spray nozzle; 10211-Front middle spray nozzle; 10212-Front left side spray nozzle; 10213-Front right side spray nozzle; 1022-Rear spray nozzle; 200 - Installation structure; 300 - Washing drum; 301 - Outer drum; 302 - Inner drum; 400 - Top Cover; 500-chamber; 600-Balance ring. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0021] Throughout the specification and claims, the following terms will have at least the meaning explicitly associated herein, unless the context otherwise requires. The meanings defined below are not intended to limit the terms, but are merely illustrative examples. In the description of this utility model, the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may refer to the same embodiment. Similarly, the phrase "in some embodiments" as used herein, when used multiple times, does not necessarily refer to the same embodiment, although it may refer to the same embodiment. As used herein, the term "or" is an inclusive "or" operator and is equivalent to the term "and / or" unless the context clearly specifies otherwise. The term "based on" is not exclusive and allows for reliance on additional factors not described, unless the context clearly specifies otherwise. The word "exemplary" herein means "serving as an example, instance, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior to or better than other embodiments. The scope of this utility model is limited only by the scope of the appended claims, and any examples set forth in this specification are not intended to be limiting, but merely to illustrate some of the many possible embodiments of the claimed utility model. The various embodiments provided by this utility model should not be construed as limiting the scope of protection of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] Background Introduction Currently, the water outlet structure of top-loading washing machines is simple, only serving to connect water to the washing drum. Moreover, the water outlet angle is singular, which cannot effectively rinse the impeller and clothes inside the drum, resulting in problems such as poor rinsing effect and detergent residue.

[0027] Based on this, such as Figures 1-9As shown, the first aspect of this application provides a spray nozzle for installation on the top cover of a pulsator washing machine, enabling it to spray water onto the interior of the washing machine from top to bottom. The spray nozzle includes: The nozzle body 100 has a water flow channel inside and a water inlet 101 and a spray nozzle 102 connected to the water flow channel on its surface. The spray nozzles 102 are provided in multiple ways. The multiple spray nozzles 102 are configured such that when the nozzle is installed on the top cover of the pulsator washing machine and sprays water, it can form a multi-angle spray water flow that covers multiple different cleaning areas. In this way, the spray direction of the multiple spray nozzles 102 can correspond one-to-one with the different cleaning areas of the pulsator washing machine.

[0028] The nozzle in this embodiment is provided with multiple spray nozzles 102, and these spray nozzles (102) are configured such that when the nozzle is installed on the top cover of the pulsator washing machine and sprays water, the spraying direction of the multiple spray nozzles 102 can correspond one-to-one with the different washing areas of the pulsator washing machine. In this way, by setting a single nozzle, different positions of the pulsator washing machine can be sprayed, thereby enabling more comprehensive spraying of the interior of the washing machine.

[0029] Furthermore, in some possible implementations, the plurality of spray nozzles 102 are also configured such that when the spray nozzles are installed on the top cover of the pulsator washing machine and spraying occurs, the plurality of spray nozzles can provide spray speeds and / or spray flow rates corresponding to different cleaning zones of the pulsator washing machine, the plurality of cleaning zones including at least the pulsator disc, the inner drum wall, and the chamber between the inner and outer drums.

[0030] In this embodiment, when the spray nozzle is installed on the top cover of the pulsator washing machine and sprays water, multiple spray nozzles 102 can spray water in different directions at different spray speeds and / or spray flow rates. This multi-angle spray design allows the water flow to cover a wider area inside the washing machine, including different parts of the clothes, as well as the pulsator and inner drum wall. Compared to traditional single-direction spray nozzles, it can more thoroughly rinse the clothes and drum wall, effectively removing dirt and detergent residue, and improving cleaning power. Furthermore, the multiple spray nozzles 102 can also be designed to spray water at different spray speeds and / or spray flow rates. This means that during the washing process, different areas can receive different levels of water flow impact as needed. For example, for dirtier areas, a higher spray speed and / or spray flow rate can be used for powerful cleaning; while for cleaner areas, a lower spray speed and / or spray flow rate can be used to avoid excessive wear and tear on the clothes, while also better protecting the fiber structure of the clothes and extending their lifespan.

[0031] Furthermore, in some possible implementations, the plurality of spray nozzles (102) are configured to have different apertures and / or hole shapes.

[0032] In other words, the multiple spray nozzles 102 in the embodiments of this application can be designed to achieve different spray speeds and / or spray directions and / or spray flow rates by designing the shape and diameter of the spray nozzles 102.

[0033] For example, when multiple spray nozzles are needed to spray washing water at different spray speeds and / or flow rates, the design can be comprehensively considered and optimized in terms of the size, shape, position, angle of the spray nozzles, and water flow control. Specifically: Spray nozzle size design: Different diameter designs: By designing spray nozzles with different diameters, different spray speeds can be achieved. Smaller diameter nozzles result in faster water flow, while larger diameter nozzles result in relatively slower water flow. For example, smaller diameter nozzles can be designed for high-speed spraying of areas requiring strong rinsing, while larger diameter nozzles can be designed for gentle spraying of sensitive clothing.

[0034] Aspect Ratio Adjustment: For elongated spray nozzles, the spray speed can be controlled by adjusting the ratio of their length to width. Longer spray nozzles can cover a larger area, but the water flow speed may be relatively slower; shorter spray nozzles have a faster water flow speed, but cover a smaller area.

[0035] Spray nozzle shape design Circular spray nozzles: Circular spray nozzles allow for even water distribution, making them suitable for spraying large areas uniformly. The water flow rate can be controlled by adjusting the diameter of the circular spray nozzle.

[0036] Long, narrow spray nozzles: Long, narrow spray nozzles can create a wider spray band, making them suitable for covering longer areas. By adjusting the length and width of the long, narrow spray nozzles, different spray speeds and coverage areas can be achieved.

[0037] Fan-shaped spray nozzles: Fan-shaped spray nozzles distribute water in a fan shape, making them suitable for spraying areas within a specific angle range. By adjusting the fan angle and radius of the nozzle, the spray speed and coverage area can be controlled.

[0038] Spray nozzle position and angle design Different location settings: By placing the spray nozzles in different positions, such as the front, rear, left, or right side of the nozzle head, targeted spraying of different areas can be achieved. By adjusting the position of the spray nozzles, the water flow can be directed to the target area at different speeds and angles.

[0039] Angle Adjustment: By adjusting the tilt angle of the spray nozzles, water can be sprayed at different speeds and directions. For example, designing the spray nozzles to form a certain angle with the vertical line can give the water a horizontal velocity component when it is sprayed, thereby achieving a longer spraying distance and a wider coverage area.

[0040] Water flow control system design Water distributor design: A water distributor is installed inside the sprinkler head to divide the water flow into different branches, each leading to a different spray nozzle. By adjusting the distribution ratio of the water distributor, the water flow velocity at each spray nozzle can be controlled. For example, a water distributor can be designed to direct most of the water flow to the spray nozzles that require high-speed spraying, while directing a small amount of water flow to the spray nozzles that require low-speed spraying.

[0041] Valve control: Valves are installed inside the spray head, and the water flow rate of each spray nozzle is adjusted by controlling the opening of the valves. For example, a solenoid valve can be designed to automatically adjust the water flow rate of each spray nozzle according to different washing modes and needs.

[0042] Pressure regulating device: A pressure regulating device is installed inside the spray head to control the spray speed by adjusting the water flow pressure. For example, an adjustable pressure pump can be designed to adjust the water flow pressure according to different washing needs, thereby achieving different spray speeds.

[0043] The above design allows multiple spray nozzles to spray water in different directions and / or multiple spray nozzles 102 to spray water at different speeds, thereby achieving targeted spray washing for the washing machine. Furthermore, in some possible implementations, the plurality of spray nozzles 102 include a front spray nozzle 1021 disposed away from the water inlet 101 and a rear spray nozzle 1022 disposed close to the water inlet 101. The front spray nozzle 1021 is used to spray the inside of the inner drum of the washing machine, and the rear spray nozzle 1022 is used to spray the cavity between the inner drum and the outer drum of the washing machine.

[0044] In this embodiment, the front spray nozzle 1021 and the rear spray nozzle 1022 can spray water simultaneously, allowing the water flow to act on both the inside of the inner drum and the chamber between the inner and outer drums. This multi-area simultaneous spraying method can complete the cleaning of different areas within the same time, shortening washing time, improving overall washing efficiency, and saving energy and water resources. The front spray nozzle 1021 and the rear spray nozzle 1022 spray different areas respectively, achieving a more precise cleaning effect. For example, the front spray nozzle 1021 can be specifically used for rinsing clothes, using a water flow at a specific angle and speed to more effectively remove detergent residue from clothes; while the rear spray nozzle 1022 can be specifically used to eliminate foam in the chamber between the inner and outer drums, preventing excessive foam from adversely affecting the washing machine, such as foam overflow or affecting motor operation. Because the nozzles can achieve targeted spraying of different areas, combined with the washing machine's control system, users can select the appropriate spray mode according to different types of clothing and the degree of soiling. For example, the spray intensity and angle can be adjusted for sensitive clothing to avoid excessive wear and tear; while for thicker garments, a stronger spray mode can be used to ensure effective cleaning. This flexible spraying method better meets the diverse needs of users, enhancing their experience and satisfaction with the washing machine.

[0045] Furthermore, in some possible embodiments, the front spray nozzle 1021 includes a front middle spray nozzle 10211 located at the middle of the end of the nozzle body 100, and a front left spray nozzle 10212 and a front right spray nozzle 10213 distributed on the left and right sides of the front middle spray nozzle 10211. The front middle spray nozzle 10211 is used to spray the middle part of the inner cylinder and / or the front and rear side walls of the inner cylinder. The front left spray nozzle 10212 is used to spray the left side wall of the inner cylinder located to the left of the front middle spray nozzle 10211. The front right spray nozzle 10213 is used to spray the right side wall of the inner cylinder located to the right of the front middle spray nozzle 10211.

[0046] In this embodiment, the front center spray nozzle 10211 is located at the center of the nozzle body 100, primarily used to spray the middle section of the inner drum and / or the front and rear side walls of the inner drum. This design allows the water flow to directly act on the key areas of the inner drum, achieving comprehensive rinsing of clothes, effectively removing dirt and detergent residue, and improving cleaning power. The front left spray nozzle 10212 and the front right spray nozzle 10213 are located on the left and right sides of the front center spray nozzle 10211, respectively, and are used to spray the left and right side walls of the inner drum. Through this distribution, the water flow can cover the left and right side walls of the inner drum, ensuring that clothes in these areas are also thoroughly rinsed, avoiding dirt residue. The front center spray nozzle 10211, the front left spray nozzle 10212, and the front right spray nozzle 10213 can spray water simultaneously, allowing the water flow to act on different areas of the inner drum at the same time. This multi-area simultaneous spraying method can complete the cleaning of multiple areas in the same time, shortening the washing time, improving the overall washing efficiency, and saving energy and water resources.

[0047] Specifically, the front center spray nozzle 10211 is specifically designed to rinse clothes in the middle and on the front and rear side walls of the inner drum, effectively removing detergent residue through a water flow at a specific angle and speed. Meanwhile, the front left spray nozzle 10212 and front right spray nozzle 10213 are specifically designed to clean clothes on the left and right side walls of the inner drum, preventing foam buildup in these areas and ensuring the cleanliness of the entire inner drum area. Because the nozzles can target different areas, combined with the washing machine's control system, users can select the appropriate spray mode based on the type of clothing and the degree of soiling. For example, for sensitive clothing, the spray intensity and angle can be adjusted to avoid excessive abrasion; while for thicker clothing, a stronger spray mode can be used to ensure a thorough cleaning. This flexible spraying method better meets the diverse needs of users, enhancing their user experience and satisfaction with the washing machine.

[0048] It is worth noting that the "positions of the front and rear side walls and the left and right side walls of the inner drum" mentioned in this embodiment are relative to the position of the spray nozzle. Since the spray nozzle is mounted on the top cover of the washing machine, when the nozzle is working, water is sprayed from the spray nozzle's nozzle and downwards into the inner drum. In this case, the "positions of the front and rear side walls" of the inner drum refer to the front and rear side walls of the inner drum as viewed from the spray nozzle. Specifically, when water is sprayed from the front center spray nozzle 10211, the water flow covers the middle of the inner drum and the front and rear side walls. This design ensures that the water flow can fully cover the key areas of the inner drum, achieving optimal washing results.

[0049] Furthermore, in some possible embodiments, the front central spray nozzle 10211 is designed as an elongated, waist-shaped nozzle with a length dimension of L3 and a width dimension of L4. The inner diameter of the nozzle body 100 is d, and the size of the front middle spray nozzle 10211 must meet the following requirements: L3≥1 / 2*d, 1 / 10*L3≤L4≤2 / 3*L3.

[0050] In this embodiment, the front central spray nozzle 10211 is designed as an elongated shape, which allows the water flow to cover a wider area when sprayed. Compared to circular or other shaped spray nozzles, the elongated shape allows the water flow to spread more horizontally, covering the middle of the inner tub and the front and rear side walls, ensuring that clothes in these areas are thoroughly rinsed. Simultaneously, the inner diameter of the nozzle body 100 is d, and the size of the front central spray nozzle 10211 must satisfy L3 ≥ 1 / 2d, 1 / 10L3 ≤ L4 ≤ 2 / 3L3. This size constraint ensures a reasonable length-to-width ratio for the spray nozzle, guaranteeing sufficient water flow without causing the water flow to be too weak due to excessive size. Specifically, L3 ≥ 1 / 2d ensures sufficient coverage in the length direction, while 1 / 10L3 ≤ L4 ≤ 2 / 3L3 ensures uniform water flow distribution in the width direction, preventing the water flow from being too concentrated or dispersed.

[0051] Through the aforementioned dimensional design, the front center spray nozzle 10211 achieves a more uniform spraying effect. When the water is sprayed, due to the elongated shape and reasonable size proportions of the spray nozzle, a uniform water curtain is formed in the middle of the inner drum and on the front and rear side walls, effectively removing dirt and detergent residue from clothing and improving cleaning power. Of course, in some alternative embodiments, the front center spray nozzle 10211 can be designed in a figure-eight shape, and the left and right spray nozzles can be adapted to be elliptical or circular. Simultaneously, the rear spray nozzle can be set in a V-shape, thereby increasing the spray coverage area of ​​the rear spray nozzle 1022.

[0052] Furthermore, in some possible embodiments, the length dimension of the front left spray nozzle 10212 is L1 and the width dimension is L5; The dimensions of the front left spray nozzle 10212 must meet the following requirements: L1≤d-L4, 1 / 10*L1≤L5≤L1.

[0053] In this embodiment, the length of the front left spray nozzle 10212 is L1, and the width is L5, satisfying L1≤d-L4 and 1 / 10L1≤L5≤L1. This size constraint ensures that the length and width ratio of the spray nozzle is reasonable, guaranteeing sufficient water flow without causing weak water dispersion due to excessive size. Specifically, L1≤d-L4 ensures that the spray nozzle is not too long in the length direction, avoiding excessive water dispersion; while 1 / 10L1≤L5≤L1 ensures that the water flow distribution in the width direction is uniform, covering the left side wall area without causing insufficient water flow intensity due to excessive width. The front left spray nozzle 10212 is specifically designed to spray the left side wall of the inner drum. Through this design, the water flow can accurately cover the area of ​​the left side wall of the inner drum, ensuring that the clothes in this area are also thoroughly rinsed, effectively removing dirt and detergent residue, and improving cleaning performance. The front left spray nozzle 10212 can spray water simultaneously with other spray nozzles (such as the front middle spray nozzle 10211 and the front right spray nozzle 10213), allowing the water flow to act on different areas of the inner drum at the same time. This multi-area simultaneous spraying method can complete the cleaning of multiple areas in the same time, shorten the washing time, improve the overall washing efficiency, and save energy and water resources.

[0054] Furthermore, in some possible embodiments, the length dimension of the front right spray nozzle 10213 is L2 and the width dimension is L6; The dimensions of the front right spray nozzle 10213 must meet the following requirements: L2≤d-L4, 1 / 10*L2≤L6≤*L2.

[0055] In this embodiment, the front right-side spray nozzle 10213 has a length dimension of L2 and a width dimension of L6, and must satisfy L2≤d-L4 and 1 / 10L2≤L6≤L2. This size constraint ensures that the length and width ratio of the spray nozzle is reasonable, guaranteeing sufficient water flow without causing the water flow to be weak due to excessive size. Specifically, L2≤d-L4 ensures that the spray nozzle is not too long in the length direction, avoiding excessive water flow; while 1 / 10L2≤L6≤L2 ensures that the water flow distribution in the width direction of the spray nozzle is uniform, covering the right side wall area without causing insufficient water flow intensity due to excessive width. The front right-side spray nozzle 10213 is specifically used to spray the right side wall of the inner drum. Through this design, the water flow can accurately cover the area of ​​the right side wall of the inner drum, ensuring that the clothes in this area are also thoroughly rinsed, effectively removing dirt and detergent residue, and improving the washing effect. The front right spray nozzle 10213 can spray water simultaneously with other spray nozzles (such as the front middle spray nozzle 10211 and the front left spray nozzle 10212), allowing the water flow to act on different areas of the inner drum at the same time. This multi-area simultaneous spraying method can complete the cleaning of multiple areas in the same time, shorten the washing time, improve the overall washing efficiency, and save energy and water resources.

[0056] Preferably, the above-mentioned spray head is a one-piece molded design, with the front right spray nozzle 10213 and the front left spray nozzle 10212 symmetrically designed relative to the front middle spray nozzle 10211. This symmetrical design ensures a more even distribution of water flow force on the spray head body during operation. This helps reduce deformation and damage to the spray head under high-pressure water flow, extending its service life. The symmetrical distribution of the front right spray nozzle 10213 and the front left spray nozzle 10212 creates a symmetrical spray pattern within the inner drum. This symmetry ensures that clothes on both sides of the inner drum are rinsed evenly, avoiding situations where one side is sprayed too strongly while the other side is insufficiently sprayed, thus improving the overall washing effect. Furthermore, the one-piece molded design reduces the number of parts and assembly steps, lowering manufacturing costs and reducing assembly errors. This design makes the spray head more compact and easier to install, while also improving its overall sealing and reliability. Simultaneously, the symmetrical design makes the spray head more aesthetically pleasing, meeting users' aesthetic requirements. This design enhances functionality while also improving the overall quality of the product.

[0057] Furthermore, in some possible embodiments, the nozzle body 100 has opposing first and second ends in its axial direction; The nozzle also includes a mounting structure 200 for connecting to the top cover of the washing machine. The mounting structure 200 is disposed on the outer peripheral surface between the first end and the second end of the nozzle body 100, and the mounting structure 200 divides the nozzle body 100 into a water inlet section 100a between the first end and the mounting structure 200, and a spray section 100b between the mounting structure 200 and the second end. The water inlet section 100a is provided with a water inlet connector at the first end, the spray section 100b is provided with a front spray nozzle 1021 at the second end, and the spray section 100b is provided with a rear spray nozzle 1022 on its outer circumferential surface. Preferably, the mounting structure 200 includes a snap-fit ​​structure for engaging with the top cover of a pulsator washing machine.

[0058] In this embodiment, the nozzle body 100 is divided into a water inlet section 100a and a spray section 100b. The water inlet section 100a is responsible for introducing water flow from the water inlet connector, while the spray section 100b has multiple spray nozzles centrally designed for spraying different areas inside the washing machine. This layout makes the nozzle function more specialized, with water inlet and spraying not interfering with each other, thus improving water flow utilization efficiency. By placing the mounting structure 200 on the outer peripheral surface of the nozzle body 100, the overall nozzle structure is more compact, saving space. This design helps reduce the area occupied by the nozzle on the top cover of the washing machine, making the internal layout of the washing machine more rational.

[0059] Specifically, the mounting structure 200 is disposed on the outer peripheral surface between the first and second ends of the nozzle body 100. This design makes nozzle installation more convenient. The mounting structure 200 divides the nozzle body 100 into a water inlet section 100a and a spray section 100b, ensuring accurate positioning of the nozzle during installation and avoiding water leakage and nozzle loosening. Preferably, the mounting structure 200 includes a snap-fit ​​structure for engaging with the top cover of the pulsator washing machine. This snap-fit ​​design makes nozzle installation and removal more convenient, allowing users to easily maintain and clean it. At the same time, the snap-fit ​​structure provides a stable connection, ensuring that the nozzle will not loosen or fall off during washing machine operation, improving safety during use.

[0060] In detail, the nozzle is mounted on the outer cylinder top cover using screws or clips. In this embodiment, it is mounted to the outer cylinder top cover using three clips; the number of clips can be one or more. Figure 5 This is a side view of the clips being installed on the outer cylinder cover. Figure 4 This is a bottom view of the clips being installed on the outer cylinder top cover. Of course, in some alternative implementations, the clips between the nozzle and the outer cylinder top cover can also be designed in reverse, i.e., the nozzle has holes and the outer cylinder top cover has clips; or the clips can be rotated 90 degrees to lock in place (similar to the locking of a pressure cooker lid and outer pot).

[0061] Furthermore, a second aspect of the present application also provides a top cover for installation on the top of a pulsator washing machine, wherein the top cover is provided with the nozzle provided in the first aspect of the present application.

[0062] Furthermore, a third aspect of the present application also provides a pulsator washing machine, which includes the spray head provided in the second aspect of the present application.

[0063] Furthermore, in some possible implementations, the pulsator washing machine includes a washing drum 300 with a clothes inlet at the top, and a top cover 400 disposed at the clothes inlet. The spray nozzles are mounted on the top cover 400 and are used to spray different positions of the washing drum 300 from top to bottom.

[0064] In this embodiment, the spray nozzles are mounted on the top cover 400, enabling spraying water onto different areas of the washing drum 300 from top to bottom. This design allows the water flow to cover a wider area of ​​the washing drum 300, including different parts of the clothes, the impeller, and the inner drum wall. Multi-angle spraying can more thoroughly rinse the clothes and drum wall, effectively removing dirt and detergent residue, and improving cleaning power. Each spray nozzle is optimized for different areas; for example, the front spray nozzle is used for spraying inside the inner drum, and the rear spray nozzle is used for spraying the chamber between the inner and outer drums, ensuring that each area is effectively cleaned. Multiple spray nozzles can spray water simultaneously, allowing the water flow to act on different areas of the washing drum 300 at the same time. This multi-area simultaneous spraying method can complete the cleaning of multiple areas in the same time, shortening the washing time, improving overall washing efficiency, and saving energy and water resources. The same spray nozzle can spray water at different spray speeds and angles, achieving a more precise cleaning effect. For example, some spray nozzles are specifically designed for rinsing clothes, using water flow at specific angles and speeds to more effectively remove detergent residue from garments; while other spray nozzles are specifically designed to eliminate foam in the cavity between the inner and outer drums, preventing excessive foam from adversely affecting the washing machine.

[0065] It is worth noting that when multiple spray nozzles are needed to spray washing water at different spray speeds and / or flow rates, the design can be comprehensively considered and optimized in terms of the size, shape, position, angle of the spray nozzles, and water flow control. Specifically: Spray nozzle size design: Different diameter designs: By designing spray nozzles with different diameters, different spray speeds can be achieved. Smaller diameter nozzles result in faster water flow, while larger diameter nozzles result in relatively slower water flow. For example, smaller diameter nozzles can be designed for high-speed spraying of areas requiring strong rinsing, while larger diameter nozzles can be designed for gentle spraying of sensitive clothing.

[0066] Aspect Ratio Adjustment: For elongated spray nozzles, the spray speed can be controlled by adjusting the ratio of their length to width. Longer spray nozzles can cover a larger area, but the water flow speed may be relatively slower; shorter spray nozzles have a faster water flow speed, but cover a smaller area.

[0067] Spray nozzle shape design Circular spray nozzles: Circular spray nozzles allow for even water distribution, making them suitable for spraying large areas uniformly. The water flow rate can be controlled by adjusting the diameter of the circular spray nozzle.

[0068] Long, narrow spray nozzles: Long, narrow spray nozzles can create a wider spray band, making them suitable for covering longer areas. By adjusting the length and width of the long, narrow spray nozzles, different spray speeds and coverage areas can be achieved.

[0069] Fan-shaped spray nozzles: Fan-shaped spray nozzles distribute water in a fan shape, making them suitable for spraying areas within a specific angle range. By adjusting the fan angle and radius of the nozzle, the spray speed and coverage area can be controlled.

[0070] Spray nozzle position and angle design Different location settings: By placing the spray nozzles in different positions, such as the front, rear, left, or right side of the nozzle head, targeted spraying of different areas can be achieved. By adjusting the position of the spray nozzles, the water flow can be directed to the target area at different speeds and angles.

[0071] Angle Adjustment: By adjusting the tilt angle of the spray nozzles, water can be sprayed at different speeds and directions. For example, designing the spray nozzles to form a certain angle with the vertical line can give the water a horizontal velocity component when it is sprayed, thereby achieving a longer spraying distance and a wider coverage area.

[0072] Water flow control system design Water distributor design: A water distributor is installed inside the sprinkler head to divide the water flow into different branches, each leading to a different spray nozzle. By adjusting the distribution ratio of the water distributor, the water flow velocity at each spray nozzle can be controlled. For example, a water distributor can be designed to direct most of the water flow to the spray nozzles that require high-speed spraying, while directing a small amount of water flow to the spray nozzles that require low-speed spraying.

[0073] Valve control: Valves are installed inside the spray head, and the water flow rate of each spray nozzle is adjusted by controlling the opening of the valves. For example, a solenoid valve can be designed to automatically adjust the water flow rate of each spray nozzle according to different washing modes and needs.

[0074] Pressure regulating device: A pressure regulating device is installed inside the spray head to control the spray speed by adjusting the water flow pressure. For example, an adjustable pressure pump can be designed to adjust the water flow pressure according to different washing needs, thereby achieving different spray speeds.

[0075] As can be seen, the above design enables multiple spray nozzles of the spray head to spray water in different directions and / or multiple spray nozzles 102 to spray water at different spray speeds, thereby achieving targeted spray washing of the washing machine.

[0076] Furthermore, in some possible embodiments, the washing drum 300 includes an outer drum 301 and an inner drum 302 pivotally disposed within the outer drum 301; The front spray nozzle 1021 on the nozzle body 100 is used to spray the inside of the inner cylinder 302, and the rear spray nozzle 1022 on the nozzle body 100 is used to spray the chamber 500 formed between the inner cylinder 302 and the outer cylinder 301. Preferably, the front middle spray port 10211 of the front spray port 1021 is used to spray the middle position of the inner cylinder 302 and / or the front and rear side walls of the inner cylinder 302, the front left spray port 10212 of the front spray port 1021 is used to spray the left side wall of the inner cylinder distributed to the left of the front middle spray port 10211, and the front right spray port 10213 is used to spray the right side wall of the inner cylinder distributed to the right of the front middle spray port 10211.

[0077] In this embodiment, the front spray nozzle 1021 on the nozzle body 100 is used to spray the interior of the inner drum 302, while the rear spray nozzle 1022 is used to spray the chamber 500 formed between the inner drum 302 and the outer drum 301. This design allows the water flow to target the clothes and the chamber separately, effectively removing dirt and detergent residue from the clothes, while cleaning the foam and dirt in the chamber, improving the overall cleaning performance. The front middle spray nozzle 10211 of the front spray nozzle 1021 is used to spray the middle part of the inner drum 302 and / or the front and rear side walls of the inner drum 302, while the front left spray nozzle 10212 and the front right spray nozzle 10213 are used to spray the left and right side walls of the inner drum, respectively. This multi-angle spray design ensures that all areas inside the inner drum are thoroughly rinsed, avoiding washing dead spots and improving the washing effect. The front spray nozzle 1021 and the rear spray nozzle 1022 can spray water simultaneously, allowing the water flow to act on both the inside of the inner drum 302 and the chamber 500 between the inner drum 302 and the outer drum 301. This multi-zone simultaneous spraying method can complete the cleaning of multiple areas within the same time, shortening the washing time, improving overall washing efficiency, and saving energy and water resources. The front spray nozzle 1021 is mainly used for rinsing clothes, using water flow at a specific angle and speed to more effectively remove detergent residue from clothes; while the rear spray nozzle 1022 is used to eliminate foam in the chamber 500 between the inner drum 302 and the outer drum 301, preventing excessive foam from affecting the normal operation of the washing machine and ensuring a smooth washing process.

[0078] In summary, by dividing the spraying process between the front spray nozzle 1021 and the rear spray nozzle 1022 on the nozzle body 100, the washing effect, efficiency, and user experience are significantly improved. At the same time, the reliability and aesthetics of the product are enhanced, providing users with a higher quality and more convenient laundry solution.

[0079] Furthermore, in some possible embodiments, the nozzle is located at the edge of the inner cylinder 302 and extends downward at an angle toward the center of the inner cylinder 302, and the elongated waist-shaped front central spray nozzle 10211 on the nozzle body 100 extends along the vertical direction of the inner cylinder 302. An angle θ1 is formed between the upper edge of the front middle spray nozzle 10211 and the vertical line passing through the center of the front middle spray nozzle 10211, and an angle θ2 is formed between the lower edge of the front middle spray nozzle 10211 and the vertical line passing through the center of the front middle spray nozzle 10211, where 0°≤θ1≤30° and θ2≤90°. and / or An angle θ3 is formed between the axis of the front left spray nozzle 10212 and the vertical line passing through the center of the front middle spray nozzle 10211, where 0°≤θ3≤90°; and / or The axis of the front right spray nozzle 10213 forms an angle θ4 with the vertical line passing through the center of the front middle spray nozzle 10211, where 0°≤θ4≤90°. and / or The distance between the central axis of the inner cylinder 302 and the vertical line passing through the center of the front middle spray nozzle 10211 is L4, 50mm≤L4≤300mm; and / or The pulsator washing machine also includes a balance ring 600, and the nozzle is located above the balance ring 600. The distance between the lowest point of the nozzle and the balance ring 600 is L3, where 0mm≤L3≤100mm.

[0080] In this embodiment, the spray nozzle is located at the edge of the inner drum 302 and extends downwards at an angle towards the center of the inner drum 302. This design allows the water flow to more accurately cover all areas inside the inner drum. The front center spray nozzle 10211 extends vertically along the inner drum 302, with its upper edge forming an angle θ1 (0°≤θ1≤30°) with the vertical line and its lower edge forming an angle θ2 (θ2≤90°) with the vertical line, allowing the water flow to cover the middle part of the inner drum and the front and rear side walls. This angle design ensures that the water flow can spray onto the target area at the appropriate direction and speed, effectively removing dirt and detergent residue from clothing. The axis of the front left spray nozzle 10212 forms an angle θ3 (0°≤θ3≤90°) with the vertical line, and the axis of the front right spray nozzle 10213 forms an angle θ4 (0°≤θ4≤90°) with the vertical line, allowing the water flow to cover the left and right sides of the inner drum, respectively. This multi-angle spray design ensures that all areas inside the drum are thoroughly rinsed, avoiding blind spots and improving washing performance. Multiple spray nozzles can spray water simultaneously, allowing the water flow to act on different areas of the inner drum 302 at the same time. This multi-area simultaneous spraying method can complete the cleaning of multiple areas in the same amount of time, shortening washing time, improving overall washing efficiency, and saving energy and water resources.

[0081] As shown above, different spray nozzles can spray water at different speeds and angles, achieving more precise cleaning results. For example, the front center spray nozzle 10211 is specifically designed to rinse clothes in the middle of the inner drum and on the front and rear side walls, effectively removing detergent residue through water flow at a specific angle and speed. Meanwhile, the front left spray nozzle 10212 and front right spray nozzle 10213 are specifically designed to clean clothes on the left and right side walls of the inner drum, preventing foam buildup in these areas and ensuring the cleanliness of the entire inner drum area. Because the nozzles can target different areas, combined with the washing machine's control system, users can select the appropriate spray mode based on the type of clothing and the degree of soiling. For example, for sensitive clothing, the spray intensity and angle can be adjusted to avoid excessive wear and tear; while for thicker clothing, a stronger spray mode can be used to ensure a thorough cleaning. This flexible spraying method better meets the diverse needs of users, enhancing their user experience and satisfaction with the washing machine.

[0082] Furthermore, the distance between the central axis of the inner drum 302 and the vertical line connecting the center of the front central spray nozzle 10211 is L4 (50mm≤L4≤300mm). This distance design ensures that the water flow can cover a reasonable range inside the inner drum, preventing the water flow from being too concentrated due to excessive distance or too dispersed and weak due to excessive distance. Meanwhile, the pulsator washing machine also includes a balance ring 600, with the spray nozzle positioned above the balance ring (600), and the distance between the lowest point of the spray nozzle and the balance ring 600 is L3 (0mm≤L3≤100mm). This design allows the spray nozzle to coordinate with the balance ring 600 during installation, ensuring uniform water distribution while avoiding interference between the spray nozzle and the balance ring 600, thus improving the overall structural stability and reliability.

[0083] By precisely designing the angle and position of the spray nozzles, the water flow is ensured to be evenly distributed inside the drum, reducing foam accumulation and preventing excessive foam from affecting the normal operation of the washing machine, such as foam overflow or affecting motor operation. The spray nozzles spray downwards from the top cover 400, and the angle and position design of the spray nozzles ensures that the water flow is evenly distributed within the washing drum 300, avoiding areas with excessively strong or weak water flow, ensuring uniform water flow throughout the washing process, and improving washing performance.

[0084] In summary, the pulsator washing machine provided in the second aspect of this application significantly improves washing effect, efficiency, and user experience through precise design of the position, angle, and distance of the spray nozzle, while also enhancing the reliability and aesthetics of the product, providing users with a higher quality and more convenient laundry solution.

[0085] In the above embodiments of this application, the descriptions of each embodiment have their own emphasis. Parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments. The steps illustrated in the related flowcharts can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowcharts, in some cases, the steps shown or described may be performed in a different order than that shown here. In other words, the order of steps described in the foregoing embodiments is merely an example. Reasonable adjustments to the order of steps based on the content of the embodiments of this application are also within the protection scope of the embodiments of this application.

[0086] The sequence numbers or order of description of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0087] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0088] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A spray nozzle for mounting on the top cover of a pulsator washing machine to spray water onto the interior of the washing machine from top to bottom, characterized in that, The nozzle includes: The nozzle body (100) has a water flow channel inside and an inlet (101) and a spray nozzle (102) connected to the water flow channel on its surface. The spray nozzles (102) are provided in multiple ways, and the multiple spray nozzles (102) are configured such that when the nozzles are installed on the top cover of the pulsator washing machine and spray water, a multi-angle spray water flow covering multiple different washing areas can be formed.

2. The nozzle according to claim 1, characterized in that, The plurality of spray nozzles (102) are also configured such that when the nozzles are mounted on the top cover of the pulsator washing machine and spraying is performed, the plurality of spray nozzles can provide spray speeds and / or spray flow rates corresponding to different cleaning zones of the pulsator washing machine, the plurality of cleaning zones including at least the pulsator disc, the inner drum wall and the chamber between the inner and outer drums.

3. The nozzle according to claim 2, characterized in that, The plurality of spray nozzles (102) are configured to have different apertures and / or hole shapes.

4. The nozzle according to any one of claims 1-3, characterized in that, The plurality of spray nozzles (102) include a front spray nozzle (1021) disposed away from the water inlet (101) and a rear spray nozzle (1022) disposed close to the water inlet (101). The front spray nozzle (1021) is used to spray the inside of the inner drum of the washing machine, and the rear spray nozzle (1022) is used to spray the cavity between the inner drum and the outer drum of the washing machine.

5. The nozzle according to claim 4, characterized in that, The front spray nozzle (1021) includes a front middle spray nozzle (10211) located at the middle of the end of the nozzle body (100), and a front left spray nozzle (10212) and a front right spray nozzle (10213) distributed on the left and right sides of the front middle spray nozzle (10211). The front middle spray nozzle (10211) is used to spray the middle position of the inner cylinder and / or the front and rear side walls of the inner cylinder. The front left spray nozzle (10212) is used to spray the left side wall of the inner cylinder distributed to the left of the front middle spray nozzle (10211). The front right spray nozzle (10213) is used to spray the right side wall of the inner cylinder distributed to the right of the front middle spray nozzle (10211).

6. The nozzle according to claim 5, characterized in that, The front middle spray nozzle (10211) is designed as an elongated, waist-shaped nozzle with a length dimension of L3 and a width dimension of L4; The inner diameter of the nozzle body (100) is d, and the size of the front middle spray port (10211) must satisfy: L3≥1 / 2*d, 1 / 10*L3≤L4≤2 / 3*L3.

7. The nozzle according to claim 6, characterized in that, The length of the front left spray nozzle (10212) is L1 and the width is L5; The dimensions of the front left spray nozzle (10212) must satisfy: L1≤d-L4, 1 / 10*L1≤L5≤L1.

8. The nozzle according to claim 6, characterized in that, The length of the front right spray nozzle (10213) is L2 and the width is L6; The dimensions of the front right spray nozzle (10213) must satisfy: L2≤d-L4, 1 / 10*L2≤L6≤*L2.

9. The nozzle according to claim 4, characterized in that, The nozzle body (100) has a first end and a second end opposite to each other in its axial direction; The nozzle also includes a mounting structure (200) for connecting to the top cover of the washing machine. The mounting structure (200) is disposed on the outer peripheral surface between the first end and the second end of the nozzle body (100), and the mounting structure (200) divides the nozzle body (100) into a water inlet section (100a) between the first end and the mounting structure (200) and a spray section (100b) between the mounting structure (200) and the second end. The water inlet section (100a) is provided with a water inlet connector at the first end, the spray section (100b) is provided with a front spray nozzle (1021) at the second end, and the spray section (100b) is provided with a rear spray nozzle (1022) on its outer circumferential surface.

10. The nozzle according to claim 9, characterized in that, The mounting structure (200) includes a snap-fit ​​structure for engaging with the top cover of a pulsator washing machine.

11. A top cover for mounting on a pulsator washing machine, characterized in that, The top cover is provided with a nozzle as claimed in any one of claims 1-10.

12. A pulsator washing machine, characterized in that, Includes the top cover as described in claim 11.

13. The pulsator washing machine according to claim 12, characterized in that, The pulsator washing machine includes a washing drum (300) with a clothes inlet at the top, and a top cover (400) disposed at the clothes inlet. The nozzles are mounted on the top cover (400) for spraying different positions of the washing drum (300) from top to bottom.

14. The pulsator washing machine according to claim 13, characterized in that, The washing drum (300) includes an outer drum (301) and an inner drum (302) pivotally disposed in the outer drum (301); The front spray nozzle (1021) on the nozzle body (100) is used to spray the interior of the inner cylinder (302), and the rear spray nozzle (1022) on the nozzle body (100) is used to spray the chamber (500) formed between the inner cylinder (302) and the outer cylinder (301).

15. The pulsator washing machine according to claim 14, characterized in that, The front middle spray port (10211) of the front spray port (1021) is used to spray the middle position of the inner cylinder (302) and / or the front and rear side walls of the inner cylinder (302). The front left spray port (10212) of the front spray port (1021) is used to spray the left side wall of the inner cylinder distributed to the left of the front middle spray port (10211). The front right spray port (10213) is used to spray the right side wall of the inner cylinder distributed to the right of the front middle spray port (10211).

16. The pulsator washing machine according to claim 15, characterized in that, The nozzle is located at the edge of the inner cylinder (302) and extends downward at an angle toward the center of the inner cylinder (302), and the elongated waist-shaped front middle spray nozzle (10211) on the nozzle body (100) extends along the vertical direction of the inner cylinder (302). An angle θ1 is formed between the upper edge of the front middle spray nozzle (10211) and the vertical line passing through the center of the front middle spray nozzle (10211), and an angle θ2 is formed between the lower edge of the front middle spray nozzle (10211) and the vertical line passing through the center of the front middle spray nozzle (10211), where 0°≤θ1≤30° and θ2≤90°. and / or The axis of the front left spray nozzle (10212) forms an angle θ3 with the vertical line passing through the center of the front middle spray nozzle (10211), where 0°≤θ3≤90°. and / or The axis of the front right spray nozzle (10213) forms an angle θ4 with the vertical line passing through the center of the front middle spray nozzle (10211), where 0°≤θ4≤90°. and / or The distance between the central axis of the inner cylinder (302) and the vertical line passing through the center of the front middle spray nozzle (10211) is L4, 50mm≤L4≤300mm; and / or The pulsator washing machine also includes a balance ring (600), the nozzle is disposed above the balance ring (600), and the distance between the lowest position of the nozzle and the balance ring (600) is L3, 0mm≤L3≤100mm.

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