Pulsator-type washing apparatus

Abstract

The present application relates to the technical field of washing, and particularly provides a pulsator washing machine, which aims to solve the problem that dirt collected by a filter collecting device is prone to backflow into a washing tub, thereby resulting in poor filtering effect. The pulsator washing machine comprises: a washing tub, which is arranged with an upward opening; and a filter collecting device, which comprises a shell and a filter collecting mesh bag arranged in the shell. The shell is arranged on an inner side wall of the washing tub, and a water inlet structure is formed on the shell. An inlet of the filter collecting mesh bag is connected with the water inlet structure, so that water in the washing tub can enter the inlet through the water inlet structure. The shell is provided with an anti-dirt backflow structure, which is arranged to be capable of contacting the filter collecting mesh bag in the case that water cannot enter from the inlet, so as to bend the filter collecting mesh bag, and thus separate the inlet from a containing space of the filter collecting mesh bag. The present application can avoid backflow of dirt collected by the filter collecting device into the washing tub.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of washing, and specifically provides a pulsator washing device. BACKGROUND

[0002] The pulsator washing device is a common washing device, such as a pulsator washing machine, a pulsator shoe washing machine, etc. Taking the pulsator shoe washing machine as an example, in the washing process, the mud and sand attached to the shoes enter the washing barrel of the pulsator shoe washing machine, and in order to avoid the mud and sand from polluting the shoes, a mud and sand collecting device is usually arranged in the washing barrel to filter the mud and sand in the water.

[0003] The existing mud and sand collecting device usually adopts the form of a mud and sand collecting box, and in the washing process, due to the repeated impact of the water flow on the mud and sand collecting box in different directions, the mud and sand in the mud and sand collecting box is prone to backflow into the washing barrel, and the filtering effect of the mud and sand is poor.

[0004] Therefore, there is a need for a new pulsator washing device to solve the above problems. SUMMARY

[0005] The present application aims to solve the above technical problems, i.e., to solve the problem that the dirt collected by the filtering and collecting device in the existing pulsator washing device is prone to backflow into the washing barrel, thereby resulting in poor filtering effect.

[0006] The present application provides a pulsator washing device, which comprises a washing barrel, the washing barrel is arranged with an upward opening; a filtering and collecting device, the filtering and collecting device comprises a shell and a filtering and collecting mesh bag arranged in the shell, the shell is arranged on the inner side wall of the washing barrel, the shell is formed with a water inlet structure, the inlet of the filtering and collecting mesh bag is connected with the water inlet structure, so that the water in the washing barrel can enter the inlet through the water inlet structure, and the shell has a dirt backflow prevention structure, the dirt backflow prevention structure is arranged to be in contact with the filtering and collecting mesh bag in the case that the water cannot enter from the inlet, so as to bend the filtering and collecting mesh bag, and thus the inlet is separated from the containing space of the filtering and collecting mesh bag.

[0007] Through such an arrangement, in the case that the water cannot enter from the water inlet structure, the inlet of the filtering and collecting mesh bag at the water inlet structure cannot be communicated with the containing space of the filtering and collecting mesh bag, thereby avoiding the backflow of dirt into the washing barrel, and further improving the filtering effect to improve the washing effect.

[0008] In the preferred technical scheme of the pulsator washing machine, the water inlet structure is formed in a tangential direction to the inner side wall of the washing tub and extends in a horizontal direction; or the water inlet structure is formed in a tangential direction to the inner side wall of the washing tub and extends in an upward oblique direction; or the water inlet structure is formed in a tangential direction to the inner side wall of the washing tub and extends in a downward oblique direction.

[0009] By such arrangement, the water inlet structure is formed in a tangential direction to the inner side wall of the washing tub and extends in a horizontal direction, so that the water flow can enter the filter collecting device, thereby facilitating the collection of dirt; the water inlet structure is formed in a tangential direction to the inner side wall of the washing tub and extends in an upward oblique direction, so that the water flow can enter the filter collecting device, thereby facilitating the collection of dirt; the water inlet structure is formed in a tangential direction to the inner side wall of the washing tub and extends in a downward oblique direction, so that the water flow can enter the filter collecting device, thereby facilitating the collection of dirt.

[0010] In the preferred technical scheme of the pulsator washing machine, the anti-dirt backflow structure gradually extends downward from the lower part of the water outlet end of the water inlet structure in a direction close to the water inlet end of the water inlet structure.

[0011] By such arrangement, in the case that the water cannot enter the water inlet structure, the inlet of the filter collecting bag and the containing space of the filter collecting bag cannot be connected without consuming electric energy, thereby avoiding the backflow of dirt into the washing tub and improving the filtering effect and the washing effect.

[0012] In the preferred technical scheme of the pulsator washing machine, a part of the shell gradually extends downward from the upper part of the water outlet end of the water inlet structure in a direction away from the water inlet end of the water inlet structure until the bottom end of the shell.

[0013] By such arrangement, the filter collecting bag in the shell can be fully stretched during the process of water entering the filter collecting bag, thereby facilitating the collection of dirt.

[0014] In the preferred technical scheme of the pulsator washing machine, the number of the water inlet structures and the number of the filter collecting bags are both two, the water inlet structures and the filter collecting bags are one-to-one corresponding, and the two water inlet structures are arranged such that the water can enter one of the water inlet structures when the water flow rotates clockwise and the water can enter the other water inlet structure when the water flow rotates counterclockwise.

[0015] Through the arrangement, no matter the water flow rotates clockwise or counterclockwise, the filter collecting device has a filter collecting bag capable of filtering and collecting dirt, that is, the filter collecting device can always filter and collect dirt during the washing process, thereby improving the filtering efficiency and fully filtering the dirt.

[0016] In the preferred technical scheme of the pulsator washing machine, the number of the anti-dirt backflow structures is two, the anti-dirt backflow structures correspond to the water inlet structures one by one, and the anti-dirt backflow structures gradually extend downward and obliquely from the lower part of the water outlet end of the corresponding water inlet structure in the direction close to the water inlet end of the water inlet structure.

[0017] Through the arrangement, in the case that the water cannot enter the filter collecting bag, the inlet of the filter collecting bag and the containing space of the filter collecting bag cannot be communicated without consuming electric energy, thereby avoiding the backflow of dirt into the washing tub, improving the filtering effect and thus improving the washing effect; and the arrangement can also make the filter collecting device have a large collecting space, thereby facilitating the arrangement of a filter collecting bag with a large collecting capacity, improving the dirt collecting capacity, reducing the cleaning frequency of the user and improving the user experience.

[0018] In the preferred technical scheme of the pulsator washing machine, a part of the shell gradually extends downward and obliquely from the upper part of the water outlet end of one of the water inlet structures in the direction away from the water inlet end of the water inlet structure, and another part of the shell gradually extends downward and obliquely from the upper part of the water outlet end of the other water inlet structure in the direction away from the water inlet end of the water inlet structure.

[0019] Through the arrangement, the filter collecting bag in the shell can be fully stretched during the process that the water enters the filter collecting bag, thereby facilitating the filtering and collecting of dirt.

[0020] In the preferred technical scheme of the above-mentioned pulsator washing machine, the shell comprises a first shell and a second shell, the first shell is formed with a recess, the second shell is provided with a clamping strip, one end of the clamping strip away from the second shell is formed with a protrusion, and in the assembled state, the protrusion is clamped into the recess to ensure that the first shell and the second shell are buckled to form a containing cavity, part of the structure of the first shell and part of the structure of the second shell jointly constitute the water inlet structure, and the first shell and / or the second shell is arranged on the inner side wall of the washing tub.

[0021] Through the above arrangement, the first shell is formed with a recess, the second shell is provided with a clamping strip, one end of the clamping strip away from the second shell is formed with a protrusion, and in the assembled state, the protrusion is clamped into the recess to ensure that the first shell and the second shell are buckled to form a containing cavity, which can facilitate the assembly or disassembly of the first shell and the second shell, so as to clean the dirt on the shell or filter the collection bag, thereby improving the user experience.

[0022] In the preferred technical scheme of the above-mentioned pulsator washing machine, the first shell is arranged on the inner side wall of the washing tub, the second shell is located on the side of the first shell away from the inner side wall of the washing tub, at least one water outlet is formed on the side of the second shell away from the first shell, and a filter screen is arranged on each water outlet.

[0023] Through the above arrangement, on the one hand, in addition to the filter collection bag, the shell can also play a role in filtering and collecting dirt, realizing secondary filtering and collection, thereby improving the filtering efficiency; on the other hand, compared with arranging the water outlet on the side of the first shell close to the inner side wall of the washing tub, the water flowing out of the second shell will not be blocked by the inner side wall of the washing tub, facilitating the water to flow out of the shell, and further improving the filtering efficiency.

[0024] In the preferred technical scheme of the above-mentioned pulsator washing machine, the shell is arranged on the lower part of the inner side wall of the washing tub.

[0025] Through the arrangement, the filtering and collecting device can sufficiently filter and collect the silt in the washing tub, and improve the filtering and collecting effect of the silt. BRIEF DESCRIPTION OF DRAWINGS

[0026] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, in which:

[0027] Figure 1 is a structure diagram of part of structure in an embodiment of the pulsator washing machine of the present application; Figure 1 which shows a state that water can enter from the water inlet structure;

[0028] Figure 2 is a structure diagram of part of structure in an embodiment of the pulsator washing machine of the present application; Figure 2 which shows a state that water cannot enter from the water inlet structure;

[0029] Figure 3 is a structure diagram of the shell of the filtering and collecting device in an embodiment of the pulsator washing machine of the present application;

[0030] Figure 4 is a structure diagram of the second shell of the filtering and collecting device and the filtering and collecting net bag in an embodiment of the pulsator washing machine of the present application;

[0031] Figure 5 is a structure diagram of the first shell of the filtering and collecting device in an embodiment of the pulsator washing machine of the present application;

[0032] Figure 6 is a structure diagram of part of structure in another embodiment of the pulsator washing machine of the present application.

[0033] Reference Signs:

[0034] 1, washing tub; 11, pulsator; 21, shell; 211, first shell; 2111, recess; 2112, mounting hole; 212, second shell; 2121, clamping strip; 21211, protrusion; 2122, water outlet; 2123, filter screen; 22, filtering and collecting net bag; 100, water inlet structure; 200, anti-backflow structure. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, in which those skilled in the art will understand that the embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application.

[0036] It should be noted that in the description of the present application, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0037] In addition, it should be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "provided", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] Based on the problem that the dirt collected by the filtering and collecting device in the existing pulsator washing machine is easy to backflow into the washing tub, thereby causing poor filtering effect, the present application provides a pulsator washing machine, which aims to avoid the backflow of the dirt collected by the filtering and collecting device into the washing tub, thereby improving the washing effect.

[0039] Specifically, the pulsator washing machine of the present application comprises a box body, a washing tub and a filtering and collecting device. Figures 1 to 4As shown, the washing tub 1 is arranged in the cabinet and is arranged with an opening facing upward, the bottom of the washing tub 1 is provided with a pulsator 11, the filter collecting device comprises a shell 21 and a filter collecting mesh bag 22 arranged in the shell 21, the shell 21 is arranged on the inner side wall of the washing tub 1, the shell 21 is formed with a water inlet structure 100, the inlet of the filter collecting mesh bag 22 is connected with the water inlet structure 100, so that the water in the washing tub 1 can enter the inlet through the water inlet structure 100, and the shell 21 has a dirt backflow prevention structure 200, which is arranged to be in contact with the filter collecting mesh bag 22 in the case that water cannot enter from the inlet, so as to bend the filter collecting mesh bag 22, and thus the inlet is separated from the containing space of the filter collecting mesh bag 22, thereby avoiding the backflow of dirt into the washing tub 1, and further improving the filtering effect to improve the washing effect. Wherein, the pulsator type washing equipment can be a pulsator type washing machine, a pulsator type shoe washing machine, etc., the washing tub 1 can adopt a single tub type washing tub, or an inner and outer double tub type washing tub. In a preferred case, the shell 21 is arranged at the lower part of the inner side wall of the washing tub 1, that is, the shell 21 is arranged at the lower part of the cylindrical inner side wall of the washing tub 1 extending in the vertical direction, the filter collecting device can fully filter and collect the silt in the washing tub 1, and improve the filtering and collecting effect of the silt. In a preferred case, the thickness w of the shell is 1≤w≤1.5cm, and the height h of the shell is 10cm, such arrangement makes the thickness and height of the shell smaller, so that the space occupied by the shell is smaller, which is convenient for the turnover of the to-be-washed objects in the washing tub, and improves the washing effect, further preferably, the water inlet structure 100 is a rectangular water inlet structure, the depth d of the water inlet structure 100 is 2≤d≤4cm, that is, the water inlet structure 100 has a relatively flat part of 2 to 4cm, which is convenient for water flow to enter.

[0040] Preferably, as Figures 3 to 5As shown, the shell 21 comprises a first shell 211 and a second shell 212, the first shell 211 is formed with a groove 2111, and the second shell 212 is provided with a clamping strip 2121, the end of the clamping strip 2121 away from the second shell 212 is formed with a protrusion 21211, in the case of complete assembly, the protrusion 21211 is clamped into the groove 2111 to ensure that the first shell 211 and the second shell 212 are buckled to form a containing cavity, part of the structure of the first shell 211 and part of the structure of the second shell 212 jointly constitute the water inlet structure 100, the first shell 221 and / or the second shell 212 is arranged on the inner side wall of the washing tub (that is, the first shell 221 is arranged on the inner side wall of the washing tub, or the second shell 212 is arranged on the inner side wall of the washing tub, or the first shell 221 and the second shell 212 are arranged on the inner side wall of the washing tub). Such arrangement can facilitate the assembly or disassembly of the first shell 211 and the second shell 212, so that the user can clean the dirt on the shell 21 or filter the collection bag 22, and improve the user experience. Further preferably, the first shell 211 is arranged on the inner side wall of the washing tub 1, and the second shell 212 is located on the side of the first shell 211 away from the inner side wall of the washing tub 1, and at least one water outlet 2122 is formed on the side of the second shell 212 away from the first shell 211, and a filter screen 2123 is arranged on each water outlet 2122. Such arrangement enables the filter screen 2123 to perform secondary filtration and collection of silt, thereby improving the filtration efficiency. In addition, by arranging the water outlet 2122 away from the inner side wall of the washing tub 1, the water flow is not blocked by the inner side wall of the washing tub 1 after flowing out of the second shell 212, thereby facilitating the water flow out of the shell 21 and further improving the filtration efficiency. In addition, the filter screen 2123 can be adhered to the first shell 211 or integrally formed with the first shell 211 by injection molding. Further preferably, at least one mounting hole 2112 (such as Figure 5 As shown), a screw, a bolt or the like passes through the mounting hole 2112 and is connected with the inner side wall of the washing tub 1, thereby realizing detachable connection between the first shell 211 and the washing tub 1, facilitating replacement of the filter collection device when it is damaged and facilitating disassembly of the filter collection device for cleaning. Of course, the structure of the shell 21 is not limited to the above, for example, the shell 21 can be provided as an integral structure (which can be realized by casting, injection molding, etc.), in the case where the shell 21 comprises a first shell 211 and a second shell 212, a clamping strip with a protrusion can be arranged on the first shell, and a groove can be formed on the second shell, in addition, the connection mode of the first shell 211 and the second shell 212 can adopt other modes (such as screwing, bonding, etc.) in addition to the mode of the clamping strip cooperating with the groove, and the position of the water outlet can also be on the second shell.

[0041] In one possible case, as Figures 3 to 5As shown, the inlet structure 100 extends in a direction tangential to the inner wall of the washing tub 1 and extends horizontally. The anti-fouling backflow structure 200 extends obliquely downward from the lower part of the outlet end of the inlet structure 100 along the direction close to the inlet end of the inlet structure 100. A part of the shell 21 extends obliquely downward from the upper part of the outlet end of the inlet structure 100 along the direction away from the inlet end of the inlet structure 100 until the bottom end of the shell 21.

[0042] like Figure 1 As shown, Figure 1 The arrows in the image indicate the direction of water flow. Figure 1 In the illustrated configuration, water can enter from the inlet structure 100, and the filter collection bag 22 can fully extend, such as... Figure 2 As shown, Figure 2 The arrows in the image indicate the direction of water flow. Figure 2 In the illustrated scenario, water cannot enter through the inlet structure 100. The filter collection bag 22 at the inlet structure 100 droops under the weight of the collected dirt. During this drooping process, the anti-backflow structure 200 comes into contact with the filter collection bag 22, causing it to bend and thus separating the inlet from the receiving space of the filter collection bag 22. This prevents dirt from flowing back into the washing tub 1, thereby improving the filtration effect and consequently enhancing the washing effect. Furthermore, this design creates a narrow "throat" near the outlet end of the inlet structure 100 in the housing 21, making it difficult for water to flow back through the inlet structure 100 after entering, thus preventing sediment from flowing back into the washing tub 1. Additionally, this design allows for a larger receiving cavity volume within the housing 21, facilitating the installation of a filter collection bag 22 with a large collection capacity, increasing the amount of dirt collected, reducing the frequency of user cleaning, and improving the user experience.

[0043] Of course, the above is only exemplary, for example, alternatively, the water inlet structure 100 is formed extending along a tangential direction of the inner side wall of the washing tub 1, and the water inlet structure 100 is formed extending along an obliquely upward direction; or, the water inlet structure 100 is formed extending along a tangential direction of the inner side wall of the washing tub 1, and the water inlet structure 100 is formed extending along an obliquely downward direction. For another example, the dirt prevention backflow structure 200 can also be a long strip structure located within the housing 21 and horizontally extending from the side of the housing 21 having the water inlet structure 100. For yet another example, the part of the housing 21 gradually extending obliquely downward from the upper part of the water outlet end of the water inlet structure 100 in a direction away from the water inlet end of the water inlet structure 100 until the bottom end of the housing 21 in the above description can be replaced by: the part gradually extending obliquely downward from the upper part of the water outlet end of the water inlet structure 100 in a direction away from the water inlet end of the water inlet structure 100 first, then horizontally extending, and then gradually extending obliquely downward again until the bottom end of the housing 21.

[0044] In one possible case, as shown in Figure 6 the water inlet structure 100 and the number of filter collection net bags 22 are both two (the filter collection net bags are not shown in the figure), the water inlet structure 100 corresponds to the filter collection net bag 22 one by one, each water inlet structure 100 is formed extending along a tangential direction of the inner side wall of the washing tub 1, and each water inlet structure 100 is formed extending along a horizontal direction, each water inlet structure 100 has a water outlet end and a water inlet end, so that Figure 5 from the perspective of the orientation in the above description, the water inlet structure 100 located on the left side is arranged with the water outlet end located on the right side of the water inlet end, the water inlet structure 100 located on the right side is arranged with the water outlet end located on the left side of the water inlet end, water can enter through one of the water inlet structures 100 when the water flow rotates clockwise, and water can enter through the other water inlet structure 100 when the water flow rotates counterclockwise. The number of dirt prevention backflow structures 200 is two, the dirt prevention backflow structure 200 corresponds to the water inlet structure 100 one by one, and the dirt prevention backflow structure 200 is formed extending gradually obliquely downward from the lower part of the water outlet end of the corresponding water inlet structure 100 in a direction close to the water inlet end of the water inlet structure 100. A part of the housing 21 is formed extending gradually obliquely downward from the upper part of the water outlet end of one of the water inlet structures 100 in a direction away from the water inlet end of the water inlet structure 100, and another part of the housing 21 is formed extending gradually obliquely downward from the upper part of the water outlet end of the other water inlet structure 100 in a direction away from the water inlet end of the water inlet structure 100.

[0045] The above arrangement enables the filtering and collecting device to filter and collect dirt throughout the washing process, without any interval during which dirt cannot be collected, thereby improving filtering efficiency and fully filtering dirt. For a single water inlet structure 100, in the case that water cannot enter from the water inlet structure 100 during the washing process, the filtering and collecting mesh bag 22 at the water inlet structure 100 will sag under the gravity of the dirt collected by the filtering and collecting mesh bag 22. During the sagging process, the anti-dirt backflow structure 200 can contact the filtering and collecting mesh bag 22, causing the filtering and collecting mesh bag 22 to bend and thus separate the inlet from the containing space of the filtering and collecting mesh bag 22, thereby avoiding backflow of dirt into the washing tub 1 and improving filtering effect and thus washing effect. In addition, the above arrangement forms a narrow “throat” near the water outlet end of the water inlet structure 100, thereby making it difficult for water that has entered from the water inlet structure 100 to backflow from the water inlet structure 100, thereby avoiding backflow of silt from the water inlet structure 100 into the washing tub 1. In addition, the above arrangement also makes the containing space in the shell 21 large in volume, thereby facilitating the arrangement of a filtering and collecting mesh bag 22 with large collection capacity, improving dirt collection capacity, reducing user cleaning frequency, and improving user experience.

[0046] Of course, the above is only exemplary, for example, alternatively, each water inlet structure 100 is formed extending in a tangential direction to the inner side wall of the washing tub 1, and each water inlet structure 100 is formed extending in an upwardly inclined direction; or, each water inlet structure 100 is formed extending in a tangential direction to the inner side wall of the washing tub 1, and each water inlet structure 100 is formed extending in a downwardly inclined direction; or, each water inlet structure 100 is formed extending in a tangential direction to the inner side wall of the washing tub 1, one water inlet structure 100 is formed extending in an upwardly inclined direction, and the other water inlet structure 100 is formed extending in a downwardly inclined direction; or, each water inlet structure 100 is formed extending in a tangential direction to the inner side wall of the washing tub 1, one water inlet structure 100 is formed extending in an upwardly inclined direction, and the other water inlet structure 100 is formed extending in a horizontal direction. Also, for example, the dirt backflow prevention structure 200 can also be a long strip structure formed extending horizontally from the side of the housing 21 having the water inlet structure 100. Further, in the above, the part of the housing 21 gradually extends downwardly inclined from the upper part of the water outlet end of one water inlet structure 100 in a direction away from the water inlet end of the water inlet structure 100, and the other part of the housing 21 gradually extends downwardly inclined from the upper part of the water outlet end of the other water inlet structure 100 in a direction away from the water inlet end of the water inlet structure 100, can also be alternatively provided as: the part of the housing 21 gradually extends downwardly inclined from the upper part of the water outlet end of one water inlet structure 100 in a direction away from the water inlet end of the water inlet structure 100, then extends horizontally, and then extends downwardly inclined again, and the other part of the housing 21 gradually extends downwardly inclined from the upper part of the water outlet end of the other water inlet structure 100 in a direction away from the water inlet end of the water inlet structure 100, then extends horizontally, and then extends downwardly inclined again.

[0047] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical solutions after these changes or replacements will all fall within the protection scope of the present application.

Claims

1. A pulsator-type washing device, characterized in that, The pulsator-type washing machine comprises: a washing tub, which is arranged with an upward opening; a filter collecting device, which comprises a housing and a filter collecting mesh bag arranged in the housing, the housing is arranged on the inner side wall of the washing tub, the housing is formed with a water inlet structure, the inlet of the filter collecting mesh bag is connected with the water inlet structure, so that the water in the washing tub can enter the inlet through the water inlet structure, and the housing is provided with a dirt backflow prevention structure, which forms a narrow "throat" at the water outlet end of the water inlet structure, so that in the case that water cannot enter from the inlet, it can contact and bend the filter collecting mesh bag, and thus the inlet is separated from the containing space of the filter collecting mesh bag.

2. The pulsator washing apparatus according to claim 1, wherein The water inlet structure is formed in a direction tangent to the inner side wall of the washing tub, and the water inlet structure is formed in a horizontal direction; or, The water inlet structure is formed in a direction tangent to the inner side wall of the washing tub, and the water inlet structure is formed in an upwardly inclined direction; or, The water inlet structure is formed in a direction tangent to the inner side wall of the washing tub, and the water inlet structure is formed in a downwardly inclined direction.

3. The pulsator washing apparatus according to claim 2, wherein The dirt backflow prevention structure gradually extends downwardly from the lower part of the water outlet end of the water inlet structure in the direction close to the water inlet end of the water inlet structure.

4. The impeller-type washing apparatus according to claim 2 or 3, characterized by A part of the housing gradually extends downwardly away from the water inlet end of the water inlet structure from the upper part of the water outlet end of the water inlet structure to the bottom end of the housing.

5. The pulsator washing apparatus according to claim 1, wherein The number of the water inlet structures and the filter collecting mesh bags is two, the water inlet structures and the filter collecting mesh bags correspond one by one, two water inlet structures are arranged to enable water to enter through one of the water inlet structures when the water flow rotates clockwise and to enter through the other water inlet structure when the water flow rotates counterclockwise.

6. The pulsator washing apparatus according to claim 5, wherein The number of the dirt backflow prevention structures is two, the dirt backflow prevention structures correspond to the water inlet structures one by one, and the dirt backflow prevention structures gradually extend downwardly from the lower part of the water outlet end of the corresponding water inlet structure in the direction close to the water inlet end of the water inlet structure.

7. The impeller-type washing apparatus according to claim 5 or 6, wherein A part of the housing gradually extends downwardly away from the water inlet end of one of the water inlet structures from the upper part of the water outlet end of the water inlet structure.

8. The pulsator washing apparatus according to claim 1, wherein The housing comprises a first housing and a second housing, the first housing is formed with a groove, the second housing is provided with a clamping strip, one end of the clamping strip away from the second housing is formed with a protrusion, in the assembled state, the protrusion is clamped into the groove to ensure that the first housing and the second housing are buckled to form a containing cavity, part of the structure of the first housing and part of the structure of the second housing jointly constitute the water inlet structure, and the first housing and / or the second housing is arranged on the inner side wall of the washing tub; or, The shell comprises a first shell and a second shell, the second shell is formed with a recess, the first shell is provided with a clamping strip, the clamping strip is formed with a protrusion at an end away from the first shell, in the assembled state, the protrusion is clamped into the recess to ensure that the first shell and the second shell are buckled to form a containing cavity, part of the structure of the first shell and part of the structure of the second shell jointly constitute the water inlet structure, and the first shell and / or the second shell is arranged on the inner side wall of the washing tub.

9. The pulsator washing apparatus according to claim 8, wherein The first shell is arranged on the inner side wall of the washing tub, the second shell is located on the side of the first shell away from the inner side wall of the washing tub, and at least one water outlet is formed on the side of the second shell away from the first shell, and a filter screen is arranged on each water outlet.

10. The pulsator washing apparatus according to claim 1, wherein The shell is arranged at the lower part of the inner side wall of the washing tub.

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