CN111485388B

CN111485388B - Washing machine and dewatering barrel assembly and waterfall spraying cover plate thereof

Info

Publication number: CN111485388B
Application number: CN201910084440.2A
Authority: CN
Inventors: 张玉琳; 李广庆; 喻光安
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2019-01-29
Filing date: 2019-01-29
Publication date: 2022-08-26
Anticipated expiration: 2039-01-29
Also published as: CN111485388A

Abstract

The invention provides a waterfall spraying cover plate, a dewatering barrel assembly and a washing machine, wherein the waterfall spraying cover plate comprises: the cover plate comprises a cover plate body, wherein a plurality of waterfall spraying holes and a plurality of water inlet holes are formed in the cover plate body; the water guide structure is arranged on the cover plate body and comprises a water guide channel extending from bottom to top, and the water guide channel is communicated with the plurality of waterfall spraying holes and the plurality of water inlet holes. According to the waterfall spraying cover plate provided by the invention, the plurality of waterfall spraying holes are formed in the cover plate body, so that the spraying coverage area of water flow is effectively increased, the spraying and washing effects on clothes are improved, the risk of clothes winding in the clothes washing process is reduced, and the user experience is improved; simultaneously, through seting up a plurality of inlet openings on the apron body, effectively improved the inflow and the inflow speed of water conservancy diversion water course to improve the jet distance and the jet strength of rivers, and then further improved the washing effect that sprays to the clothing, further reduced the winding risk of clothing appears in the laundry in-process, further improved user experience.

Description

Washing machine and dewatering barrel assembly and waterfall spraying cover plate thereof

Technical Field

The invention relates to the technical field of washing machines, in particular to a waterfall spraying cover plate, a dewatering barrel assembly comprising the waterfall spraying cover plate and a washing machine comprising the dewatering barrel assembly.

Background

At present, when washing clothes, in order to prevent the clothes from tangling, a waterfall spraying cover plate is generally arranged in the washing machine, and the clothes are flushed by water flow sprayed from the upper part. However, in the existing washing machine, only one waterfall spraying hole is usually arranged and fixed, so that the spraying coverage area of water flow is small, spraying dead corners are easy to occur, the spraying distance is short, the spraying strength is weak, and clothes still have high winding risk.

Disclosure of Invention

In order to solve at least one of the above technical problems, an object of the present invention is to provide a waterfall spraying cover plate.

Another object of the present invention is to provide a dehydration tub assembly including the above waterfall spraying cover plate.

It is still another object of the present invention to provide a washing machine including the above-mentioned dehydration tub assembly.

In order to achieve the above object, a first aspect of the present invention provides a waterfall spraying cover plate, including: the cover plate comprises a cover plate body, wherein a plurality of waterfall spraying holes and a plurality of water inlet holes are formed in the cover plate body; the water diversion structure is arranged on the cover plate body and comprises a water diversion water channel extending from bottom to top, and the water diversion water channel is communicated with the plurality of waterfall spraying holes and the plurality of water inlet holes.

According to the waterfall spraying cover plate provided by the technical scheme of the first aspect of the invention, the plurality of waterfall spraying holes are formed in the cover plate body, so that the spraying coverage area of water flow is effectively increased, the spraying and washing effect on clothes is improved, the risk of clothes winding in the clothes washing process is reduced, and the user experience is improved; simultaneously, through seting up a plurality of inlet openings on the apron body, effectively improved the inflow and the inflow speed of water conservancy diversion water course to improve the jet distance and the jet strength of rivers, and then further improved the washing effect that sprays to the clothing, further reduced the winding risk of clothing appears among the laundry process, further improved user experience.

In addition, the waterfall spraying cover plate in the technical scheme provided by the invention can also have the following additional technical characteristics:

in the above technical scheme, the diversion water channel includes a plurality of mutually independent waterfall spraying flow channels, the number of waterfall spraying holes is equal to the number of waterfall spraying flow channels and corresponds to the waterfall spraying flow channels one by one, the number of water inlet holes is equal to the number of waterfall spraying flow channels and corresponds to the waterfall spraying flow channels one by one, and two ends of the waterfall spraying flow channels are respectively communicated with the waterfall spraying holes and the water inlet holes.

Divide the water conservancy diversion water course for a plurality of mutually independent spout the waterfall runner, spout the waterfall runner and spout waterfall hole and a plurality of inlet opening one-to-one and communicate respectively with a plurality of, promptly: one spraying waterfall flow passage corresponds to one water inlet hole and one spraying waterfall hole, in the washing process, water flow of the washing cavity enters the spraying waterfall flow passage from the water inlet hole and then is sprayed out from the spraying waterfall hole to wash clothes, a plurality of spraying waterfall flow passages can spray a plurality of water flows at the same time, the plurality of water flows are independent and do not interfere with each other, compared with a scheme that water flow is conveyed to the spraying waterfall holes through one passage at the same time, the cross section area of the water flow corresponding to each spraying waterfall hole is reduced, the water flow speed is improved, the spraying waterfall effect of the spraying waterfall holes is improved, the lifting height of the water flow is improved, and the adverse effect of too low water level on the spraying waterfall effect is reduced as far as possible.

In the above technical solution, the sectional area of the waterfall spraying hole is S1, the sectional area of the water inlet hole corresponding to the waterfall spraying hole is S2, and the S1 and the S2 satisfy: S1/S2 is more than or equal to 20% and less than or equal to 60%.

The sectional area S1 of the waterfall hole means an area of a section perpendicular to a flow direction of water flowing through the waterfall hole, and the sectional area S2 of the water inlet hole means an area of a section perpendicular to a flow direction of water flowing through the water inlet hole. The waterfall spraying hole is connected with the water outlet end of the waterfall spraying flow passage, the water inlet hole corresponding to the waterfall spraying hole is connected with the water inlet end of the waterfall spraying flow passage, the sectional area S1 of the waterfall spraying hole has great influence on parameters such as the water outlet speed, the spraying distance and the spraying strength of waterfall spraying water flow, and the sectional area S2 of the water inlet hole has great influence on parameters such as the water inlet flow rate, the water outlet flow rate and the spraying strength of waterfall spraying flow, so that the reasonable setting of the sectional area S1 of the waterfall spraying hole and the sectional area S2 of the water inlet hole is very important for the waterfall spraying effect. After a large number of tests and researches, technicians of the company find that the ratio S1/S2 of the sectional area S1 of the waterfall spraying hole and the sectional area S2 of the water inlet hole corresponding to the waterfall spraying hole is limited within the range of 20% -60%, so that the spraying distance of waterfall spraying water flow is prolonged, the impact strength of the waterfall spraying water flow is improved, the spraying and washing effect on clothes is further improved, and the user experience is further improved.

In the above technical solution, it is respectively noted that a height difference of two ends of the waterfall spraying flow channel in a vertical direction is L, a sectional area of the waterfall spraying hole corresponding to the waterfall spraying flow channel is S1, and a sectional area of the water inlet hole corresponding to the waterfall spraying flow channel is S2, where L, S1, and S2 satisfy: L/(S1 XS 2) < 0.7%.

The sectional area S1 of the waterfall spraying hole refers to the area of the section perpendicular to the flowing direction of the water flow flowing through the waterfall spraying hole, the sectional area S2 of the water inlet hole refers to the area of the section perpendicular to the flowing direction of the water flow flowing through the water inlet hole, and the height difference L of the two ends of the waterfall spraying flow passage in the vertical direction is equal to the climbing height of the water flow in the waterfall spraying flow passage. As described above, the sectional area S1 of the waterfall spraying hole has a great influence on parameters such as the water outlet speed, the spraying distance, and the spraying strength of the waterfall spraying water flow, the sectional area S2 of the water inlet hole has a great influence on parameters such as the water inlet flow, the water outlet flow, and the spraying strength of the water flow of the waterfall spraying channel, and the height difference of the two ends of the waterfall spraying channel in the vertical direction has a great influence on the kinetic energy of the water flow reaching the waterfall spraying hole, so that the influences on the parameters such as the water outlet speed, the spraying distance, and the spraying strength are also great, and therefore, it is very important for the waterfall spraying effect to reasonably set the sectional area S1 of the waterfall spraying hole, the sectional area S2 of the water inlet hole, and the height difference L of the two ends of the waterfall spraying channel in the vertical direction. After a large number of tests and researches, technicians of the company find that the ratio L/(S1 multiplied by S2) of the height difference L of two ends of the waterfall spraying flow channel in the vertical direction to the product of the sectional area S1 of the waterfall spraying hole corresponding to the waterfall spraying flow channel and the sectional area S2 of the water inlet hole corresponding to the waterfall spraying flow channel is limited to be less than 0.7%, so that the spraying distance of the waterfall spraying water flow is prolonged, the impact strength of the waterfall spraying water flow is improved, the spraying and washing effect on clothes is further improved, and the user experience is further improved.

In the technical scheme, the maximum bend angle of the waterfall spraying flow passage is not more than 90 degrees.

The size of the waterfall spraying cover plate is not too wide due to the limitation of the cylindrical shape of the inner barrel of the washing machine, and the transverse distance between adjacent waterfall spraying holes cannot be too short in order to improve the waterfall spraying effect. Therefore, in order to reasonably arrange the position of the waterfall spraying hole and meet the shape limitation of the waterfall spraying cover plate, the waterfall spraying flow passage can be subjected to corner design, namely: the lower part of the waterfall spraying flow passage can be vertically arranged, the width of a waterfall spraying cover plate is favorably reduced, the upper part of the waterfall spraying flow passage can extend to the corresponding waterfall spraying hole through turning to increase the transverse distance between the adjacent waterfall spraying holes and improve the waterfall spraying performance, so that the waterfall spraying flow passage has a corner structure, but the corner structure can cause certain water flow energy loss, and the larger the bending amplitude is, the larger the energy loss is, so that the maximum corner of the waterfall spraying flow passage is limited within the range of not more than 90 degrees, the energy loss in the water flow turning process is reduced as far as possible, the water outlet speed of waterfall spraying water flow is favorably improved, the spraying distance of the waterfall spraying water flow is further prolonged, and the impact strength of waterfall spraying water flow is further improved.

In other words, along the flowing direction of the water flow, the included angle between the normal vector of the cross section of one end of the waterfall spraying flow passage, which is connected with the water inlet hole, and the normal vector of the cross section of other parts of the waterfall spraying flow passage is in the range of 0-90 degrees.

The flow direction of the water flow at each part in the waterfall spraying flow channel is determined by using the flow direction of the water flow as a reference, and the normal vector of the section of each part in the waterfall spraying flow channel (namely the normal of the section of each part perpendicular to the flow direction of the water flow + the flow direction of the water flow at the corresponding part) determines the flow direction of the water flow at each part in the waterfall spraying flow channel; the normal vector of the section of one end of the waterfall-spraying flow passage, which is connected with the water inlet hole, determines the water inlet direction of the waterfall-spraying flow passage, so that the included angle between the normal vector of the section of the waterfall-spraying flow passage and the normal vector of the section of other parts of the waterfall-spraying flow passage determines the turning amplitude of the waterfall-spraying flow passage. Therefore, the included angle is limited within the range of 0-90 degrees, the maximum bend angle of the waterfall spraying flow channel is not larger than 90 degrees, and overlarge energy loss caused by rapid turning of water flow can be prevented, so that the water outlet speed of waterfall spraying water flow is favorably improved, the spraying distance of the waterfall spraying water flow is further prolonged, and the impact strength of the waterfall spraying water flow is further improved.

In the technical scheme, the inner wall surface of the waterfall spraying hole comprises a water outlet inclined surface, and the water outlet inclined surface extends to the outlet of the waterfall spraying hole to enable water flow sprayed from the waterfall spraying hole to be fan-shaped.

Spout the internal face in waterfall hole and include a water inclined plane, and go out the water inclined plane and extend to the exit that spouts the waterfall hole, promptly: the inner wall surface of the waterfall spraying hole is not a cylindrical surface with uniform thickness, but at least the part close to the outlet of the waterfall spraying hole is obliquely arranged, the flowing direction of water flow sprayed out along the water outlet inclined plane can deviate from the center of the waterfall spraying hole to be diffused outwards, and then the spraying coverage area of the waterfall spraying water flow can be changed, so that the water flow sprayed out from the waterfall spraying hole is in a fan shape, the spraying coverage area of the waterfall spraying water flow is further increased, the spraying and washing effect on clothes is further improved, and the user experience is further improved. Furthermore, the other end of the water outlet inclined plane can extend to an inlet of the waterfall spraying hole and also can extend to the middle part or other positions of the waterfall spraying hole.

In the above technical solution, the section of the waterfall spraying hole is a long strip extending along the horizontal direction, and the water outlet slope is configured to enable the radian of the fan-shaped water flow sprayed from the waterfall spraying hole to be within the range of 60-150 °.

The waterfall spraying holes are elongated and extend in the horizontal direction, so that water flow sprayed out of the waterfall spraying holes can be sprayed out in a flat shape, a certain water curtain effect is formed, the transverse coverage area of the water flow is increased, and the spraying effect is further improved; and the water outlet inclined plane is constructed to ensure that the radian of the fan-shaped water flow sprayed by the waterfall spraying holes is within the range of 60-150 degrees, so that the water flow is ensured to have relatively large transverse coverage area, the water flow sprayed by adjacent waterfall spraying holes can be prevented from being interfered with each other due to overlarge transverse coverage area, and meanwhile, relatively long spraying distance is ensured to each part of the sprayed water flow. Of course, the cross-sectional shape of the waterfall spraying hole is not limited to a strip shape, but can also be a circle, a square, etc., which are not listed here, and all the purposes of the present invention can be achieved without departing from the design concept and the purpose of the present invention, and therefore, the present invention is within the protection scope of the present invention.

In any of the above technical solutions, at least a portion of the plurality of waterfall spraying holes are distributed at intervals along a circumferential direction of an inner tub of the washing machine.

Because in the process of high-speed rotation of the inner barrel of the washing machine, the waterfall spraying cover plate can synchronously rotate along with the inner barrel, and the water flow can stay in the air for a certain time after being sprayed out, therefore, at least one part of the plurality of waterfall spraying holes are distributed at intervals along the circumferential direction of the inner barrel of the washing machine, the water flow sprayed out of the plurality of waterfall spraying holes in the high-speed rotation process can cover a larger area at the same time, even the waterfall spraying holes are integrally formed into 360 degrees, namely annular waterfall spraying water flow can be formed, the probability of spraying dead angles is greatly reduced, the clothes at a plurality of positions can be sprayed and washed well at the same time, the risk of clothes winding in the washing process is further reduced, and the user experience is further improved.

In any one of the above technical solutions, the positions of the plurality of waterfall spraying holes have different heights; and/or the positions of a plurality of the water inlet holes have different heights.

In the prior art, only one waterfall spraying hole is provided and the position of the waterfall spraying hole is fixed, so that when the water level is low, the water pressure is not enough to lift the water flow to the waterfall spraying hole, and the waterfall spraying hole cannot spray water flow to clothes, so that the clothes are easy to be wound. Based on this, this application makes a plurality of positions of spouting the waterfall hole have the height that the height is different through rationally arranging a plurality of positions of spouting the waterfall hole, like this, the lower waterfall hole of spouting of position can play main waterfall effect of spouting when the water level is lower, and the higher waterfall hole of spouting of position can play main waterfall effect of spouting when the water level is higher, thereby the waterfall demand of spouting of different water levels has been satisfied, make washing machine have the function to different water level regulation spray effect, further reduced the laundry in-process clothing and taken place winding risk. Certainly, the waterfall spraying holes with lower positions and the waterfall spraying holes with higher positions can also play a role simultaneously, as long as the water pressure is enough to lift the water flow to the corresponding waterfall spraying holes, so that the transverse spraying coverage area is increased, the longitudinal spraying coverage area is also increased, and the spraying effect is obviously improved.

The positions of the water inlet holes are different in height, water at different water levels in the inner barrel of the washing machine can be conveniently and reasonably extracted, the flow path of water flow reaching the waterfall spraying holes is favorably shortened, the water outlet speed of the waterfall spraying holes is increased, the spraying distance and the spraying strength of the waterfall spraying water flow are further increased, the water inlet flow and the water outlet flow of the water guide flow channel are also favorably increased, and the waterfall spraying effect is further improved.

In the technical scheme, for the condition that the positions of the plurality of waterfall spraying holes have different heights, the plurality of waterfall spraying holes are distributed in an upper layer and a lower layer; and for the condition that the positions of the water inlet holes have different heights, the water inlet holes are distributed in an upper layer and a lower layer.

The spraying waterfall holes in the lower layer can play a main spraying waterfall role when the water level is lower, and the spraying waterfall holes in the upper layer can play a main spraying waterfall role when the water level is higher, so that the spraying waterfall requirements of different water levels are met, the washing machine has a function of adjusting the spraying effect aiming at different water levels, the structure of a spraying waterfall cover plate is simplified, and the washing machine is convenient to machine and form.

The position to a plurality of inlet openings has the condition of the height of difference, arrange a plurality of inlet openings according to upper and lower two-layer mode, the inlet opening that is located the lower floor when the water level is lower can exert main effect of intaking, and the inlet opening that is located the upper strata when the water level is higher can exert main effect of intaking or upper and lower two-layer inlet opening simultaneously and play the effect of intaking to the demand of intaking of different water levels has been satisfied, the structure of spouting waterfall apron has also been simplified, the machine-shaping of being convenient for.

In the technical scheme, for the condition that the plurality of waterfall spraying holes are distributed in an upper layer and a lower layer, the height difference between the waterfall spraying holes positioned on the upper layer and the waterfall spraying holes positioned on the lower layer is 80-140 mm; and for the condition that the spraying waterfall holes are distributed in an upper-layer mode and the water inlet holes are distributed in a lower-layer mode, the water inlet hole positioned on the upper layer is arranged above the spraying waterfall hole positioned on the lower layer.

For the condition that a plurality of waterfall spraying holes are distributed in an upper layer and a lower layer, the height difference between the upper layer and the lower layer of waterfall spraying holes is limited within the range of 80-140 mm, so that the spraying requirements of different water levels are not easily met due to the fact that the height difference between the two layers of waterfall spraying holes is too small, the use frequency of the waterfall spraying holes is too low due to the fact that the height difference between the two layers of waterfall spraying holes is too high or too low, and the spraying effect of the waterfall spraying holes can be effectively adjusted according to different water levels.

The water inlet holes in the upper layer are arranged above the water spraying waterfall holes in the lower layer, the water inlet holes in the lower layer supply water for the water spraying waterfall holes in the lower layer, and the water inlet holes in the upper layer supply water for the water spraying waterfall holes in the upper layer, so that an upper-layer water spraying waterfall flow channel and a lower-layer water spraying waterfall flow channel are formed. Therefore, the waterfall spraying flow passage positioned on the lower layer can play a main waterfall spraying role when the water level is lower, and the waterfall spraying flow passage positioned on the upper layer can play a main waterfall spraying role when the water level is higher, so that the waterfall spraying requirements of different water levels are met, the washing machine has a function of adjusting the spraying effect aiming at different water levels, the structure of a waterfall spraying cover plate is simplified, and the processing and the forming are convenient. Furtherly, the inlet opening that is located the lower floor with be located the lower floor spout and be equipped with the isolation muscle between the waterfall hole, two-layer waterfall flow path that spouts separates each other like this, each other does not influence, has effectively guaranteed each and has spouted waterfall effect of spouting of waterfall flow path. Of course, the isolation rib may not be provided, the water inlet hole located at the upper layer may also be used as the waterfall spraying hole when the water level is low, and the waterfall spraying hole located at the lower layer may also be used as the water inlet hole when the water level is high.

In the above technical scheme, at least one layer of the waterfall spraying holes is provided with a plurality of holes.

The number of the waterfall spraying holes in at least one layer is multiple (namely, the number of the waterfall spraying holes in the two layers is multiple, or the number of the waterfall spraying holes in one layer is multiple, and the number of the waterfall spraying holes in the other layer is one), so that the transverse coverage area of water flow sprayed out of the waterfall spraying holes in the layer can be effectively increased, annular waterfall spraying water flow is favorably formed, the probability of spraying dead corners is greatly reduced, and the user experience is further improved.

In the technical scheme, the included angle between two adjacent spraying waterfall holes in the same layer is in the range of 18-35 degrees.

Because the inner barrel of the washing machine is generally cylindrical, correspondingly, the cover plate body is in the shape of an arc plate (namely the projection of the cover plate body on the horizontal plane is in the shape of an arc), the plurality of waterfall spraying holes positioned on the same layer are distributed at intervals along the circumferential direction of the inner barrel, so that a certain included angle is formed between two adjacent waterfall spraying holes positioned on the same layer, and the adjacent waterfall spraying holes are ensured to spray water flow to different directions, so that the waterfall spraying effect is improved. The included angle between two adjacent waterfall spraying holes in the same layer is limited within the range of 18-35 degrees, so that the water flow sprayed by the two waterfall spraying holes can be prevented from interfering with each other due to too much overlapping, and the water flow sprayed by the two waterfall spraying holes can be closer to each other and connected into a whole, thereby being beneficial to forming annular waterfall spraying water flow and improving the spraying and washing effect. Preferably, the waterfall spraying holes are of a symmetrical structure and have central axes, and the included angle between the central axes of two adjacent waterfall spraying holes in the same layer is 18-35 degrees.

In the above technical solution, the number of the waterfall spraying holes located at the upper layer is greater than the number of the waterfall spraying holes located at the lower layer.

Because the water level in the washing machine is relatively higher when more clothes are to be cleaned, the number of the waterfall spraying holes on the upper layer is more than that of the waterfall spraying holes on the lower layer, so that more waterflows can be sprayed when more clothes are cleaned, the spraying and washing effects on the clothes are improved, and the layout is more reasonable.

In the above technical scheme, the number of the waterfall spraying holes is four, three of the waterfall spraying holes are located in an upper layer, and the other waterfall spraying hole is located in a lower layer.

The number of the waterfall spraying holes is designed to be four, three holes are located in the upper layer, and one hole is located in the lower layer, so that the phenomenon that the waterfall spraying cover plate is too large or the structure is too complex due to the fact that the number of the waterfall spraying holes is too large is avoided, and the fact that each waterfall spraying hole can have a relatively large size is guaranteed, and the spraying coverage area is further increased. Of course, the number of the waterfall spraying holes can be two, four or more, and the waterfall spraying holes can be adjusted according to needs in the actual production process, and the waterfall spraying holes can achieve the purpose of the invention and do not depart from the design concept and the purpose of the invention, so the waterfall spraying holes are all within the protection scope of the invention.

In the technical scheme, the two waterfall spraying holes positioned on the outer side of the upper layer are symmetrically distributed on two sides of the waterfall spraying hole positioned in the middle of the upper layer, and the waterfall spraying hole positioned on the lower layer is arranged right below the waterfall spraying hole positioned in the middle of the upper layer.

The two waterfall spraying holes positioned on the outer side are symmetrically distributed on two sides of the waterfall spraying hole positioned in the middle, the waterfall spraying hole positioned on the lower layer is arranged right below the waterfall spraying hole positioned in the middle of the upper layer, and the waterfall spraying holes can be arranged into an inverted pyramid-shaped structure, so that the structure is regular and is convenient to process and form; the water flow sprayed out in the washing process is more attractive in effect, the ornamental value of the washing process is improved, and the use experience of a user is further improved; and the structure is relatively regular, and the processing and forming are convenient.

In the technical scheme, the cover plate body comprises a main body and two extending portions, the two extending portions are symmetrically distributed on two sides of the main body and connected with the upper portion of the main body, the waterfall spraying holes are located in the middle of the upper layer, the waterfall spraying holes are located on the lower layer, the waterfall spraying holes and the water inlet holes are formed in the main body, and the waterfall spraying holes are formed in the outer side of the upper layer and formed in the two extending portions respectively.

The apron body includes main part and two extensions, two extension symmetric distributions link to each other in the both sides of main part and with the upper portion of main part, narrow wide structure in the formation down, wherein, be located the spout waterfall hole in the middle of the upper strata, it sets up in the main part to be located spouting waterfall hole and a plurality of inlet opening of lower floor, it sets up on the extension to be located two of the upper strata outside and spout the waterfall hole, thus, existing two that are favorable to rationally setting up the upper strata adjacent spout the transverse separation distance between the waterfall hole, be favorable to rationally setting up the size of singly spouting the waterfall hole, thereby existing two that are favorable to avoiding adjacent spout waterfall hole spun rivers mutual interference, be favorable to further increasing the horizontal coverage area that sprays again, and then further optimization spouts the waterfall effect.

In any one of the above technical solutions, the cover plate body is provided with a plurality of flow guide ribs extending from bottom to top, and the waterfall spraying flow channel is defined between two adjacent flow guide ribs.

Be equipped with a plurality of water conservancy diversion muscle on the apron body, inject between two continuous water conservancy diversion muscle and spout the waterfall runner, from this, the rivers that get into to spout the waterfall runner are injectd between two water conservancy diversion muscle, and can only be along two water conservancy diversion muscle upward movement and reach and spout waterfall department, through spouting waterfall hole blowout to realized spouting the water conservancy diversion effect that the waterfall runner was said, structure and principle are comparatively simple, easily realize.

An aspect of the second aspect of the present invention provides a dehydration tub assembly of a washing machine, including: an inner barrel which encloses a washing cavity; the waterfall spraying cover plate is installed on the inner wall surface of the inner barrel, a flow guide channel is defined between the flow guide water channel of the waterfall spraying cover plate and the inner wall surface of the inner barrel, and the flow guide channel is communicated with the washing cavity through a waterfall spraying hole and a water inlet hole in the waterfall spraying cover plate.

The dewatering tub assembly of the washing machine according to the second aspect of the present invention includes the waterfall spraying cover plate according to any one of the first aspect of the present invention, so that all the advantages of any one of the above-mentioned aspects are achieved, and no further description is given here.

In the above technical scheme, the number of the waterfall spraying cover plates is multiple, and the multiple waterfall spraying cover plates are uniformly distributed along the circumferential direction of the inner barrel.

The quantity design that will spout waterfall apron is a plurality of, and a plurality of waterfall apron of spouting along the circumference evenly distributed of interior bucket, has further enlarged and has sprayed the coverage area, can realize 360 all-round covers, forms the annular waterfall rivers that spout, avoids appearing spraying the dead angle to further improve the washing effect of clothing, further improved user experience.

An aspect of the third aspect of the present invention provides a washing machine, including: an outer tub assembly; and the dewatering barrel component is sleeved in the outer barrel component.

The washing machine provided by the third aspect of the present invention includes the dewatering bucket assembly according to any one of the second aspect of the present invention, so that all the advantages of any one of the above-mentioned aspects are achieved, and details are not repeated herein.

In any of the above technical solutions, the washing machine is a pulsator washing machine.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a front view of a waterfall spraying cover plate according to some embodiments of the present invention;

fig. 2 is a rear view of the waterfall spraying cover plate shown in fig. 1;

FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is a schematic perspective view of a dewatering bucket assembly according to some embodiments of the present invention;

fig. 6 is a schematic top view of the dehydration tub assembly shown in fig. 5.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:

10 spout waterfall apron, 11 apron bodies, 111 spout the waterfall hole, 1111 goes out the water inclined plane, 112 inlet openings, 113 main parts, 114 extension, 115 spout the waterfall runner, 12 water conservancy diversion muscle, 20 interior buckets.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The waterfall deck, the dehydration tub assembly, and the washing machine according to some embodiments of the present invention will be described below with reference to fig. 1 to 6.

As shown in fig. 1 to 4, an embodiment of the first aspect of the present invention provides a waterfall spraying cover plate 10, including: the cover plate body 11 and the flow guide structure.

Specifically, the cover plate body 11 is provided with a plurality of waterfall spraying holes 111 and a plurality of water inlet holes 112; the flow guide structure is disposed on the cover plate body 11 and includes a flow guide channel extending from bottom to top, and the flow guide channel is communicated with the plurality of waterfall spraying holes 111 and the plurality of water inlet holes 112.

According to the waterfall spraying cover plate 10 provided by the embodiment of the first aspect of the invention, the plurality of waterfall spraying holes 111 are formed in the cover plate body 11, so that the spraying coverage area of water flow is effectively increased, the spraying and washing effect on clothes is improved, the risk of clothes winding in the clothes washing process is reduced, and the user experience is improved; simultaneously, through set up a plurality of inlet openings 112 on apron body 11, effectively improved the inflow and the inflow speed of water conservancy diversion water course to improve the jet distance and the jet strength of rivers, and then further improved the washing effect that sprays to the clothing, further reduced the winding risk of clothing among the laundry process, further improved user experience.

The specific structure of the waterfall spraying plate 10 provided in the present application will be described in detail below with reference to some embodiments.

Example one

The diversion water channel includes a plurality of mutually independent waterfall spraying flow channels 115, the number of waterfall spraying holes 111 is equal to the number of waterfall spraying flow channels 115 and corresponds to one another, the number of water inlet holes 112 is equal to the number of waterfall spraying flow channels 115 and corresponds to one another, and two ends of the waterfall spraying flow channels 115 are respectively communicated with the waterfall spraying holes 111 and the water inlet holes 112, as shown in fig. 1.

The diversion water channel is divided into a plurality of independent waterfall spraying flow channels 115, the waterfall spraying flow channels 115 are in one-to-one correspondence with the waterfall spraying holes 111 and the water inlet holes 112 and are respectively communicated with the waterfall spraying holes 111 and the water inlet holes 112, namely: one waterfall spraying flow channel 115 corresponds to one water inlet 112 and one waterfall spraying hole 111, in the washing process, water flow in a washing cavity enters the waterfall spraying flow channel 115 from the water inlet 112 and then is sprayed out from the waterfall spraying hole 111 to wash clothes, a plurality of water flows can be sprayed out from the waterfall spraying flow channels 115 at the same time, and the water flows are independent from each other and do not interfere with each other, compared with a scheme that water flow is conveyed to the waterfall spraying holes 111 through one channel at the same time, the cross-sectional area of the water flow corresponding to each waterfall spraying hole 111 is reduced, so that the water flow speed is improved, the waterfall spraying effect of the waterfall spraying holes 111 is improved, the lifting height of the water flow is improved, and adverse effects caused by too low water level on the waterfall spraying effect are reduced as much as possible.

Further, the sectional area of the waterfall spraying hole 111 is S1, the sectional area of the water inlet 112 corresponding to the waterfall spraying hole 111 is S2, and S1 and S2 satisfy: S1/S2 is more than or equal to 20 percent and less than or equal to 60 percent.

The sectional area S1 of the waterfall injection hole 111 refers to an area of a section perpendicular to a flow direction of water flowing through the waterfall injection hole 111, and the sectional area S2 of the water inlet hole 112 refers to an area of a section perpendicular to a flow direction of water flowing through the water inlet hole 112. The waterfall spraying hole 111 is connected with the water outlet end of the waterfall spraying channel 115, the water inlet hole 112 corresponding to the waterfall spraying hole 111 is connected with the water inlet end of the waterfall spraying channel 115, the sectional area S1 of the waterfall spraying hole 111 has great influence on parameters such as the water outlet speed, the spraying distance and the spraying strength of waterfall spraying water flow, and the sectional area S2 of the water inlet hole 112 has great influence on parameters such as the water inlet flow, the water outlet flow and the spraying strength of waterfall spraying channel 115, so that the reasonable setting of the sectional area S1 of the waterfall spraying hole 111 and the sectional area S2 of the water inlet hole 112 is very important for the waterfall spraying effect. After a large number of tests and researches, technicians of the company find that the ratio S1/S2 of the sectional area S1 of the waterfall spraying hole 111 and the sectional area S2 of the water inlet hole 112 corresponding to the sectional area S1 is limited within the range of 20% -60%, so that the spraying distance of waterfall spraying water flow is prolonged, the impact strength of waterfall spraying water flow is improved, the spraying and washing effect on clothes is further improved, and the user experience is further improved.

Further, it is respectively noted that the height difference of the two ends of the waterfall flow passage 115 in the vertical direction is L, the sectional area of the waterfall spraying hole 111 corresponding to the waterfall flow passage 115 is S1, and the sectional area of the water inlet hole 112 corresponding to the waterfall flow passage 115 is S2, L, S1 and S2 satisfy: L/(S1 XS 2) < 0.7%.

The sectional area S1 of the waterfall spraying hole 111 refers to an area of a section perpendicular to a flow direction of water flowing through the waterfall spraying hole 111, the sectional area S2 of the water inlet hole 112 refers to an area of a section perpendicular to a flow direction of water flowing through the water inlet hole 112, and a height difference L between two ends of the waterfall flow passage 115 in a vertical direction is equal to a climbing height of water flowing in the waterfall flow passage 115.

As mentioned above, the sectional area S1 of the waterfall spraying hole 111 has a great influence on parameters such as the water outlet speed, the spraying distance, and the spraying strength of the waterfall-sprayed water flow, the sectional area S2 of the water inlet hole 112 has a great influence on parameters such as the water inlet flow, the water outlet flow, and the spraying strength of the waterfall, of the waterfall-sprayed flow passage 115, and the height difference of the two ends of the waterfall-sprayed flow passage 115 in the vertical direction has a great influence on the kinetic energy of the water flow reaching the waterfall-sprayed hole 111, so that the influence on the parameters such as the water outlet speed, the spraying distance, and the spraying strength is great, and therefore, the reasonable setting of the sectional area S1 of the waterfall-sprayed hole 111, the sectional area S2 of the water inlet hole 112, and the height difference L of the two ends of the waterfall-sprayed flow passage 115 in the vertical direction is very important to the waterfall effect. After a large number of tests and researches, technicians of the company find that the ratio L/(S1 multiplied by S2) of the height difference L of two ends of the waterfall spraying flow channel 115 in the vertical direction to the product of the sectional area S1 of the waterfall spraying hole 111 corresponding to the waterfall spraying flow channel and the sectional area S2 of the water inlet hole 112 corresponding to the waterfall spraying flow channel is limited to be less than 0.7%, so that the spraying distance of waterfall spraying water flow is prolonged, the impact strength of waterfall spraying water flow is improved, the spraying and washing effect on clothes is further improved, and the user experience is further improved.

Further, the maximum bending angle of the waterfall spraying channel 115 is not more than 90 °.

The size of the waterfall spraying cover plate 10 is not too wide due to the cylindrical shape of the washing machine inner tub 20, and the lateral distance between the adjacent waterfall spraying holes 111 is not too close to improve the waterfall spraying effect. Therefore, in order to reasonably arrange the positions of the waterfall spraying holes 111 and meet the shape limitation of the waterfall spraying cover plate 10, the waterfall spraying flow channel 115 may be subjected to a corner design, that is: the lower portion of the waterfall spraying flow passage 115 may be vertically disposed, which is beneficial to reducing the width of the waterfall spraying cover plate 10, and the upper portion of the waterfall spraying flow passage 115 may extend to the corresponding waterfall spraying holes 111 through turning, as shown in fig. 1, to increase the lateral distance between adjacent waterfall spraying holes 111, and improve the waterfall spraying performance, so that the waterfall spraying flow passage 115 has a corner structure, but the corner structure may cause a certain water flow energy loss, and the larger the bending amplitude is, the larger the energy loss is, so that the maximum corner of the waterfall spraying flow passage is limited within a range not exceeding 90 °, and the energy loss in the water flow turning process is reduced as much as possible, which is beneficial to improving the water outlet speed of waterfall spraying water flow, further extending the spraying distance of waterfall spraying water flow, and further improving the impact strength of waterfall spraying water flow.

In other words, along the flowing direction of the water flow, the angle between the normal vector of the cross section of the end of the waterfall flow passage 115 connected with the water inlet hole 112 and the normal vector of the cross section of the other part of the waterfall flow passage 115 is within the range of 0-90 °.

Based on the flowing direction of the water flow, the normal vector of the cross section of each part of the waterfall spraying flow passage 115 (i.e. the normal of the cross section of each part of the waterfall spraying flow passage 115 perpendicular to the flowing direction of the water flow + the flowing direction of the water flow at the corresponding part) determines the flowing direction of the water flow at each part in the waterfall spraying flow passage 115; the normal vector of the cross section of the end of the waterfall flow channel 115 connected to the water inlet 112 (i.e., the normal of the cross section perpendicular to the flow direction of the water flow) determines the water inlet direction of the waterfall flow channel 115, and thus the angle between the normal vector of the cross section and the normal vector of the cross section at other positions of the waterfall flow channel 115 determines the turning range of the waterfall flow channel 115. Therefore, the included angle is limited within the range of 0-90 degrees, so that the maximum bending angle alpha of the waterfall spraying flow channel 115 is not greater than 90 degrees, excessive energy loss caused by rapid turning of water flow can be prevented, the water outlet speed of the waterfall spraying water flow is favorably improved, the spraying distance of the waterfall spraying water flow is further prolonged, and the impact strength of the waterfall spraying water flow is further improved.

Further, the inner wall surface of the waterfall spraying hole 111 includes a water outlet slope 1111, and the water outlet slope 1111 extends to the outlet of the waterfall spraying hole 111 to enable the water flow sprayed from the waterfall spraying hole 111 to be fan-shaped.

Spout the internal wall face of waterfall hole 111 and include a water inclined plane 1111, and go out water inclined plane 1111 and extend to the exit of spouting waterfall hole 111, promptly: the inner wall surface of the waterfall spraying hole 111 is not a cylindrical surface with uniform thickness, but at least a part close to the outlet of the waterfall spraying hole 111 is obliquely arranged, so that the flow direction of the water flow sprayed out along the water outlet inclined plane 1111 can deviate from the center of the waterfall spraying hole 111 to be diffused outwards, the spraying coverage area of the waterfall spraying water flow can be changed, the water flow sprayed out from the waterfall spraying hole 111 is in a fan shape, the spraying coverage area of the waterfall spraying water flow is further increased, the spraying and washing effect on clothes is further improved, and the user experience is further improved. Further, the other end of the water outlet slope 1111 may extend to an inlet of the waterfall spraying hole 111, or may extend to the middle of the waterfall spraying hole 111 or other positions.

Preferably, the cross-section of the waterfall spraying hole 111 is a long strip extending along the horizontal direction, and the water outlet slope 1111 is configured to make the arc β of the fan-shaped water flow sprayed from the waterfall spraying hole 111 be in the range of 60 ° to 150 °.

The waterfall spraying holes 111 are elongated and extend in the horizontal direction, so that water flow sprayed out of the waterfall spraying holes 111 can be sprayed out in a flat shape, a certain water curtain effect is formed, the transverse coverage area of the water flow is increased, and the spraying effect is further improved; and the water outlet slope 1111 is configured to enable the radian beta of the fan-shaped water flow sprayed from the waterfall spraying holes 111 to be within the range of 60 degrees to 150 degrees, so that the water flow is ensured to have a relatively large transverse coverage area, the water flow sprayed from the adjacent waterfall spraying holes 111 can be prevented from having an excessively large transverse coverage area and interfering with each other, and meanwhile, each part of the sprayed water flow is ensured to have a relatively long spraying distance. Of course, the cross-sectional shape of the waterfall spraying hole 111 is not limited to a long strip, but may also be round, square, etc., which are not listed here, and all the purposes of the present invention can be achieved without departing from the design concept and spirit of the present invention, and therefore, the present invention is within the protection scope.

Further, at least a portion of the plurality of waterfall spraying holes 111 are spaced apart in a circumferential direction of the inner tub 20 of the washing machine, as shown in fig. 1 and 2.

Because in the process of high-speed rotation of the inner barrel 20 of the washing machine, the waterfall spraying cover plate 10 can synchronously rotate along with the inner barrel 20, and the water flow stays for a certain time after being sprayed out, at least one part of the waterfall spraying holes 111 are distributed at intervals along the circumferential direction of the inner barrel 20 of the washing machine, the water flow sprayed out of the waterfall spraying holes 111 in the high-speed rotation process can cover a larger area at the same moment, even be integrally formed into 360 degrees, namely annular waterfall spraying water flow can be formed, thereby greatly reducing the probability of spraying dead angles, ensuring that clothes at a plurality of positions can obtain good spraying and washing effects at the same time, further reducing the risk of clothes winding in the washing process, and further improving the user experience.

Example two

The difference from the first embodiment is that: on the basis of the first embodiment, further, the positions of the plurality of waterfall spraying holes 111 have different heights, as shown in fig. 1.

In the prior art, only one waterfall spraying hole 111 is provided and the position of the waterfall spraying hole is fixed, so that when the water level is low, the water pressure is not enough to lift the water flow to the waterfall spraying hole 111, and at the moment, the waterfall spraying hole 111 cannot spray water flow to clothes, so that the clothes are easy to be wound. Based on this, this application makes a plurality of positions of spouting waterfall hole 111 have the height that the height is different through rationally arranging a plurality of positions of spouting waterfall hole 111, like this, the lower waterfall hole 111 of spouting of position can play main waterfall effect of spouting when the water level is lower, and the higher waterfall hole 111 of spouting of position can play main waterfall effect of spouting when the water level is higher, thereby the waterfall demand of spouting of different water levels has been satisfied, make washing machine have the function to different water level regulation spray effect, further reduced the laundry in-process and taken place winding risk.

Certainly, the spraying waterfall holes 111 with lower positions and the spraying waterfall holes 111 with higher positions can also play a role simultaneously, as long as the water pressure is enough to lift the water flow to the corresponding spraying waterfall holes 111, so that the transverse spraying coverage area is increased, the longitudinal spraying coverage area is also increased, and the spraying effect is obviously improved.

Further, the positions of the plurality of water inlet holes 112 have different heights, as shown in fig. 1.

The positions of the water inlet holes 112 have different heights, so that water at different water levels in the washing machine inner barrel 20 can be conveniently and reasonably extracted, the flow path of water flow reaching the waterfall spraying hole 111 can be favorably shortened, the water outlet speed of the waterfall spraying hole 111 can be increased, the spraying distance and the spraying strength of the waterfall spraying water flow can be further increased, the water inlet flow and the water outlet flow of the water guide flow channel can be favorably increased, and the waterfall spraying effect can be further improved.

Further, for the case that the positions of the plurality of waterfall spraying holes 111 have different heights, the plurality of waterfall spraying holes 111 are arranged in an upper-lower two-layer manner, as shown in fig. 1; in the case where the positions of the plurality of water inlet holes 112 have different heights, the plurality of water inlet holes 112 are arranged in an upper and lower layer, as shown in fig. 1.

For the condition that the positions of the plurality of waterfall spraying holes 111 have different heights, the plurality of waterfall spraying holes 111 are distributed in an upper layer and a lower layer, the waterfall spraying holes 111 on the lower layer can play a main waterfall spraying role when the water level is low, and the waterfall spraying holes 111 on the upper layer can play a main waterfall spraying role when the water level is high, so that the waterfall spraying requirements of different water levels are met, the washing machine has a function of adjusting the spraying effect according to different water levels, the structure of the waterfall spraying cover plate 10 is simplified, and the processing and the forming are convenient.

To the condition that the positions of the water inlet holes 112 have different heights, the water inlet holes 112 are arranged in an upper layer and a lower layer, the water inlet hole 112 positioned on the lower layer can play a main water inlet role when the water level is low, the water inlet hole 112 positioned on the upper layer can play a main water inlet role or the water inlet holes 112 positioned on the upper layer and the lower layer can play a water inlet role simultaneously when the water level is high, so that the water inlet requirements of different water levels are met, the structure of the waterfall spraying cover plate 10 is also simplified, and the processing and the forming are convenient.

Preferably, in the case that the plurality of waterfall spraying holes 111 are arranged in an upper layer and a lower layer, the height difference M between the waterfall spraying hole 111 at the upper layer and the waterfall spraying hole 111 at the lower layer is between 80mm and 140 mm.

For the condition that the plurality of waterfall spraying holes 111 are arranged in an upper layer and a lower layer, the height difference M between the upper layer and the lower layer of waterfall spraying holes 111 is limited within the range of 80-140 mm, so that the spraying requirements of different water levels are difficult to meet due to too small height difference between the two layers of waterfall spraying holes 111, the over-high or over-low use frequency of the waterfall spraying holes 111 due to too large height difference between the two layers of waterfall spraying holes 111 is avoided, and the spraying effect of the two layers of waterfall spraying holes 111 can be adjusted according to different water levels.

Further, for the case that the plurality of waterfall spraying holes 111 are arranged in an upper-lower two-layer manner and the plurality of water inlet holes 112 are arranged in an upper-lower two-layer manner, the water inlet hole 112 located at the upper layer is arranged above the waterfall spraying hole 111 located at the lower layer.

For the case that the plurality of waterfall spraying holes 111 are arranged in an upper-lower two-layer manner and the plurality of water inlet holes 112 are arranged in an upper-lower two-layer manner, the water inlet hole 112 located at the upper layer is arranged above the waterfall spraying hole 111 located at the lower layer, the water inlet hole 112 located at the lower layer supplies water to the waterfall spraying hole 111 located at the lower layer, and the water inlet hole 112 located at the upper layer supplies water to the waterfall spraying hole 111 located at the upper layer, so that an upper-lower two-layer waterfall spraying flow passage 115 is formed. Thus, the waterfall spraying flow passage 115 positioned at the lower layer can play a main waterfall spraying role when the water level is lower, and the waterfall spraying flow passage 115 positioned at the upper layer can play a main waterfall spraying role when the water level is higher, so that the waterfall spraying requirements of different water levels are met, the washing machine has a function of adjusting the spraying effect aiming at different water levels, the structure of the waterfall spraying cover plate 10 is also simplified, and the processing and the forming are convenient.

Furthermore, an isolation rib is arranged between the water inlet hole 112 positioned on the lower layer and the waterfall spraying hole 111 positioned on the lower layer, so that the waterfall spraying flow passages 115 on the two layers are mutually isolated and do not influence each other, and the waterfall spraying effect of each waterfall spraying flow passage 115 is effectively ensured. Of course, the isolation rib may not be provided, the water inlet hole 112 located at the upper layer may also be used as the waterfall spraying hole 111 when the water level is low, and the waterfall spraying hole 111 located at the lower layer may also be used as the water inlet hole 112 when the water level is high, which also can achieve the purpose of the present invention, and does not depart from the design concept and purpose of the present invention, and thus, the present invention also falls within the protection scope of the present invention.

Further, the number of the at least one layer of the waterfall spraying holes 111 is multiple, as shown in fig. 1.

At least one layer of the waterfall spraying holes 111 is provided with a plurality of holes (namely, the two layers of waterfall spraying holes 111 are provided with a plurality of holes, or the one layer of waterfall spraying holes 111 is provided with a plurality of holes and the other layer of waterfall spraying holes 111 is provided with one hole), so that the transverse coverage area of water flow sprayed out of the waterfall spraying holes 111 can be effectively increased, annular waterfall spraying water flow can be favorably formed, the probability of spraying dead corners is greatly reduced, and the user experience is further improved.

Preferably, the included angle θ between two adjacent waterfall spraying holes 111 in the same layer is in the range of 18 to 35, as shown in fig. 4.

Because the inner tub 20 of the washing machine is generally cylindrical, correspondingly, the cover plate body 11 is arc-plate-shaped (that is, the projection of the cover plate body 11 on the horizontal plane is arc-shaped), the plurality of waterfall spraying holes 111 located on the same layer are distributed at intervals along the circumferential direction of the inner tub 20, so that a certain included angle is formed between two waterfall spraying holes 111 located on the same layer and adjacently arranged, and the waterfall spraying holes 111 adjacent to each other are ensured to spray water flow in different directions, so as to improve the waterfall spraying effect. The included angle theta between two adjacent waterfall spraying holes 111 in the same layer is limited within the range of 18-35 degrees, so that the water flow sprayed by the two waterfall spraying holes 111 can be prevented from interfering with each other due to too much overlapping, and the water flow sprayed by the two waterfall spraying holes 111 can be closer to each other and connected into a whole, thereby being beneficial to forming annular waterfall spraying water flow and improving the spraying and washing effect.

Preferably, the waterfall spraying holes 111 are symmetrical structures and have central axes, and the included angle between the central axes of two waterfall spraying holes 111 which are positioned at the same layer and are adjacently arranged is in the range of 18-35 degrees.

Further, the number of the waterfall spraying holes 111 at the upper layer is greater than the number of the waterfall spraying holes 111 at the lower layer, as shown in fig. 1.

Because the water level in the washing machine is relatively high when more clothes to be washed are washed, the number of the waterfall spraying holes 111 on the upper layer is more than that of the waterfall spraying holes 111 on the lower layer, so that more water flows can be sprayed when more clothes are washed, the spraying and washing effects on the clothes are improved, and the layout is more reasonable.

Preferably, the number of the waterfall spraying holes 111 is four, wherein three waterfall spraying holes 111 are located at an upper layer, and another waterfall spraying hole 111 is located at a lower layer, as shown in fig. 1.

The number of the waterfall spraying holes 111 is designed to be four, three of the waterfall spraying holes are located on the upper layer, and one of the waterfall spraying holes is located on the lower layer, so that the phenomenon that the waterfall spraying cover plate 10 is too large or the structure is too complex due to the fact that the number of the waterfall spraying holes 111 is too large is avoided, and the waterfall spraying holes 111 can have relatively large sizes, so that the spraying coverage area is further increased.

Of course, the number of the waterfall spraying holes 111 may be two, four or more, and the waterfall spraying holes may be adjusted as required in the actual production process, and all of the waterfall spraying holes can achieve the purpose of the present invention without departing from the design concept and spirit of the present invention, and therefore, the waterfall spraying holes are all within the protection scope of the present invention.

Further, two waterfall spraying holes 111 located outside the upper layer are symmetrically distributed on two sides of the waterfall spraying hole 111 located in the middle of the upper layer, and the waterfall spraying hole 111 located in the lower layer is arranged right below the waterfall spraying hole 111 located in the middle of the upper layer, as shown in fig. 1.

The two waterfall spraying holes 111 positioned on the outer side are symmetrically distributed on two sides of the waterfall spraying hole 111 positioned in the middle, the waterfall spraying hole 111 positioned in the lower layer is arranged right below the waterfall spraying hole 111 positioned in the middle of the upper layer, and the waterfall spraying holes can be arranged into an inverted pyramid-shaped structure, so that the structure is regular and convenient to machine and form; the water flow sprayed out in the washing process is more attractive in effect, the ornamental value of the washing process is improved, and the use experience of a user is further improved; and the structure is relatively regular, and the processing and forming are convenient.

Further, the cover plate body 11 includes a main body 113 and two extending portions 114 symmetrically distributed on two sides of the main body 113 and connected to the upper portion of the main body 113, as shown in fig. 1 and 2, a waterfall spraying hole 111 located in the middle of the upper layer, a waterfall spraying hole 111 located in the lower layer, and a plurality of water inlet holes 112 are formed in the main body 113, and the two waterfall spraying holes 111 located outside the upper layer are respectively formed in the two extending portions 114.

The cover plate body 11 comprises a main body 113 and two extension portions 114, the two extension portions 114 are symmetrically distributed on two sides of the main body 113 and connected with the upper portion of the main body 113 to form a structure with a narrow lower portion and a wide upper portion, wherein the waterfall spraying hole 111 located in the middle of the upper layer, the waterfall spraying hole 111 located in the lower layer and the plurality of water inlet holes 112 are formed in the main body 113, and the two waterfall spraying holes 111 located in the outer side of the upper layer are formed in the extension portions 114.

Further, a plurality of flow guiding ribs 12 extending from bottom to top are arranged on the cover plate body 11, and a waterfall spraying flow passage 115 is defined between two adjacent flow guiding ribs 12, as shown in fig. 1.

Be equipped with a plurality of water conservancy diversion muscle 12 on the apron body 11, inject between two water conservancy diversion muscle 12 that link to each other and spout waterfall flow path 115, from this, the rivers that get into spout waterfall flow path 115 are injectd between two water conservancy diversion muscle 12, and can only move upwards along two water conservancy diversion muscle 12 and reach and spout waterfall hole 111 department, spout through spouting waterfall hole 111 to realized spouting waterfall flow path 115's water conservancy diversion effect, the structure and principle are comparatively simple, easily realize.

As shown in fig. 5 and 6, an embodiment of a second aspect of the present invention provides a dehydration tub assembly of a washing machine, including: an inner barrel 20 and a waterfall spraying cover plate 10 as in any one of the first aspect embodiments.

Specifically, the inner barrel 20 encloses a washing cavity; the waterfall spraying cover plate 10 is installed on the inner wall surface of the inner tub 20, a flow guide channel is defined between the flow guide channel of the waterfall spraying cover plate 10 and the inner wall surface of the inner tub 20, and the flow guide channel is communicated with the washing cavity through a waterfall spraying hole 111 and a water inlet hole 112 on the waterfall spraying cover plate 10.

The dewatering tub assembly of the washing machine according to the second aspect of the present invention includes the waterfall spraying cover plate 10 according to any one of the first aspect of the present invention, so that all the advantages of any one of the above embodiments are provided, and no further description is provided herein.

Further, the number of the waterfall spraying cover plates 10 is plural, and the plural waterfall spraying cover plates 10 are uniformly distributed along the circumferential direction of the inner tub 20, as shown in fig. 4 and 5.

The quantity that will spout waterfall apron 10 designs for a plurality ofly, and a plurality ofly spouts waterfall apron 10 along the circumference evenly distributed of interior bucket 20, has further enlarged and has sprayed the coverage area, can realize 360 all-round covers, forms the annular waterfall rivers that spout, avoids appearing spraying the dead angle to further improve the washing effect of clothing, further improved user experience.

An embodiment of a third aspect of the present invention provides a washing machine (not shown in the drawings) comprising: the outer barrel assembly and the dewatering barrel assembly as the embodiment of the second aspect are sleeved in the outer barrel assembly.

The washing machine provided by the embodiment of the third aspect of the present invention includes the dewatering tub assembly of any one of the embodiments of the second aspect, so that all the advantages of any one of the embodiments are provided, and further description is omitted here.

In any of the above embodiments, the washing machine is a pulsator washing machine.

The washing machine provided in the present application will be described in detail with reference to one embodiment, and compared with the prior art.

In the washing process of the pulsator washing machine, the pulsator rotates to drive clothes to turn over, so that the clothes are rubbed with the stainless steel barrel to achieve the cleaning effect. The washing mode easily causes serious winding of clothes, is difficult to untie after being dried, causes deformation and damage of the clothes, and has the condition that dead corners are difficult to clean in place. The waterfall spraying cover plate 10 on the existing washing machine usually has only one water spraying opening, the water spraying distance is short, the water spraying strength is weak, and the washing effect of strong water flow washing on clothes under the condition of different water levels cannot be met.

Therefore, the invention provides a design method of a waterfall spraying cover plate 10, a certain number of water inlets and water spray nozzles are arranged on the waterfall spraying cover plate 10, the proportion of the sectional area of the water inlets on the waterfall spraying cover plate 10 to the sectional area of the water spray nozzles, the height and the angle of a cavity are arranged, and a plurality of waterfall spraying cover plates 10 are arranged in a washing barrel, so that the washing effect that a plurality of strong water flows are sprayed during washing is achieved.

Concretely, the pulsator washing machine includes a plurality of waterfall spraying cover plates 10 uniformly distributed along the circumference of an inner tub 20 thereof. The waterfall spraying cover plate 10 is provided with a plurality of water nozzles (namely waterfall spraying holes 111), a plurality of water inlets (namely water inlet holes 112) and a water circulating cavity structure (namely waterfall spraying flow channel 115), the cavity structure is formed by sealing the rib positions on the waterfall spraying cover plate 10 and the inner barrel 20, and water flow can be sprayed out from the water nozzles along the cavity.

To achieve a strong water jet, the waterfall spraying cover plate 10 needs to satisfy the following design conditions: the ratio S1/S2 of the water spray opening sectional area S1 to the water inlet sectional area S2 is between 20% and 60%; the cavity height L between the water jet and the water inlet needs to satisfy the following design conditions: the ratio of L to the product of the water outlet sectional area and the water inlet sectional area S1 multiplied by S2 is less than 0.7% (namely L/(S1 multiplied by S2) < 0.7%); the included angle alpha between the maximum bending angle of the cavity and the normal line of the section of the water inlet is 0-90 degrees; the arrangement of the water spray nozzles on the waterfall spraying cover plate 10 can be layered up and down, and can also be on the same plane, and the distance M between the water spray nozzles on the upper layer and the lower layer is between 80mm and 140 mm; the included angle theta between the adjacent water spray nozzles is between 18 degrees and 35 degrees. The smaller the ratio S1/S2 of the sectional area of the water spray opening to the sectional area of the water inlet is, the smaller the ratio L/(S1 multiplied by S2) of the length L of the cavity and the product S1 multiplied by S2 of the sectional area of the water spray opening and the sectional area of the water inlet is, the farther the water spray of the waterfall water flow is, and the larger the impact strength is.

Furthermore, the water outlet included angle beta of the water spray nozzles is between 60 degrees and 150 degrees, a certain number of the waterfall spraying cover plates 10 are arranged in the inner barrel 20 of the washing machine, water flows sprayed by different water spray nozzles are intersected together and connected into a ring shape, and the washing effect of ring-shaped water spray during washing can be achieved.

As the preferred scheme, spout waterfall apron 10 and design and have 4 water inlets, 4 water jets, the water jet divide into upper and lower two-stories, a water jet of lower floor, 3 water jets on the upper strata are located the coplanar, and the contained angle between the adjacent water jet of upper strata is 23.5 degrees. The vertical distance of the water spray nozzles of the upper layer and the lower layer is 128 mm. The ratio S2-1/S3-1 of the cross-sectional area S2-1 of the water spraying port 2-1 (namely the water spraying hole 111 positioned at the lower layer) to the cross-sectional area S3-1 of the water inlet 3-1 (namely the water inlet hole 112 positioned at the lower layer) is 20%, the ratio S2-2/S3-2 of the cross-sectional area S2-2 of the water spraying port 2-2 (namely the water spraying hole 111 positioned at the middle of the upper layer) to the cross-sectional area S3-2 of the water inlet 3-2 (namely the water inlet hole 112 positioned at the middle of the upper layer) is 48%, the ratio S2-3/S3-3 of the cross-sectional area S2-3 of the water spraying port 2-3 (namely the water spraying hole 111 positioned at the outer side of the upper layer) to the cross-sectional area S3-3 of the water inlet 3-3 (namely the water inlet hole 112 positioned at the outer side of the upper layer) is 32%, and the cross-sectional area S2 of the water spraying port 2-4 (namely the water spraying hole 111 positioned at the outer side of the upper layer) is 3-4 to the water inlet 4 (namely the cross-3-4 of the water spraying port 3 The other water inlet hole 112 on the outer side of the upper layer) has a ratio S2-4/S3-4 of the sectional area S3-4 of 32%.

The design parameters of the height L of the 4 cavity structures are as follows: cavity L4-1/(S2-1 xs 3-1) ═ 0.12%, cavity L4-2/(S2-2 xs 3-2) ═ 0.13%, cavity L4-3/(S2-3 xs 3-3) ═ 0.65%, and cavity L4-4/(S2-4 xs 3-4) ═ 0.65%. The included angle alpha 4-1 between the maximum bending angle of the cavity and the normal line of the section of the water inlet is 0 degrees, alpha 4-2 is 0 degrees, alpha 4-3 is 90 degrees, and alpha 4-4 is 90 degrees. The water outlet included angle beta of each water spray nozzle is 76 degrees.

Preferably, 4 waterfall spraying cover plates 10 are arranged in the inner tub 20 of the washing machine, the waterfall spraying cover plates 10 are uniformly arranged along the circumference, the lower layer of water spraying openings spray water at a low water level, the upper layer of water spraying openings and the lower layer of water spraying openings spray water after the washing machine exceeds 2 water levels, and waterflows sprayed by the upper layer of water spraying openings can be intersected to form annular waterfall spraying.

In summary, the waterfall spraying cover plate provided by the invention has the advantages that the plurality of waterfall spraying holes are formed in the cover plate body, so that the spraying coverage area of water flow is effectively increased, the spraying and washing effect on clothes is improved, the risk of clothes winding in the clothes washing process is reduced, and the user experience is improved; simultaneously, through seting up a plurality of inlet openings on the apron body, effectively improved the inflow and the inflow speed of water conservancy diversion water course to improve the jet distance and the jet strength of rivers, and then further improved the washing effect that sprays to the clothing, further reduced the winding risk of clothing appears among the laundry process, further improved user experience.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are used broadly and should be construed to include, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Waterfall spraying panel (10), comprising:

the cover plate comprises a cover plate body (11), wherein the cover plate body (11) is provided with a plurality of waterfall spraying holes (111) and a plurality of water inlet holes (112);

the flow guide structure is arranged on the cover plate body (11) and comprises a flow guide water channel extending from bottom to top, and the flow guide water channel is communicated with the plurality of waterfall spraying holes (111) and the plurality of water inlet holes (112);

the flow guide water channel comprises a plurality of independent waterfall spraying flow channels (115), and two ends of the waterfall spraying flow channels (115) are respectively communicated with the waterfall spraying holes (111) and the water inlet holes (112).

2. Waterfall spraying panel (10) according to claim 1,

the number of the waterfall spraying holes (111) is equal to that of the waterfall spraying flow passages (115) and corresponds to that of the waterfall spraying flow passages one to one, and the number of the water inlet holes (112) is equal to that of the waterfall spraying flow passages (115) and corresponds to that of the waterfall spraying flow passages one to one.

3. Waterfall spraying panel (10) according to claim 2,

respectively recording that the sectional area of the waterfall spraying hole (111) is S1, the sectional area of the water inlet hole (112) corresponding to the waterfall spraying hole (111) is S2, and the S1 and the S2 satisfy the following conditions: S1/S2 is more than or equal to 20 percent and less than or equal to 60 percent.

4. Waterfall spraying panel (10) according to claim 2,

respectively recording the height difference of two ends of the waterfall spraying flow passage (115) in the vertical direction as L, the sectional area of the waterfall spraying hole (111) corresponding to the waterfall spraying flow passage (115) as S1, and the sectional area of the water inlet hole (112) corresponding to the waterfall spraying flow passage (115) as S2, wherein the L, the S1 and the S2 meet the following requirements: L/(S1 XS 2) < 0.7%.

5. Waterfall spraying panel (10) according to claim 2,

the maximum bending angle of the waterfall spraying flow passage (115) is not more than 90 degrees.

6. Waterfall spraying panel (10) according to claim 2,

the inner wall surface of the waterfall spraying hole (111) comprises a water outlet inclined surface (1111), and the water outlet inclined surface (1111) extends to the outlet of the waterfall spraying hole (111) so that water flow sprayed out of the waterfall spraying hole (111) is fan-shaped.

7. Waterfall spraying panel (10) according to claim 6,

the section of the waterfall spraying hole (111) is in a long strip shape extending along the horizontal direction, and the water outlet inclined plane (1111) is constructed to enable the radian of fan-shaped water flow sprayed by the waterfall spraying hole (111) to be in the range of 60-150 degrees.

8. Waterfall spraying panel (10) according to any one of claims 1 to 7,

at least one part of the plurality of waterfall spraying holes (111) are distributed at intervals along the circumferential direction of an inner tub (20) of the washing machine.

9. Waterfall spraying panel (10) according to any one of claims 1 to 7,

the positions of the plurality of waterfall spraying holes (111) have different heights; and/or

The positions of the plurality of water inlet holes (112) have different heights.

10. Waterfall spraying deck plate (10) according to claim 9,

for the condition that the positions of the plurality of waterfall spraying holes (111) have different heights, the plurality of waterfall spraying holes (111) are arranged in an upper layer and a lower layer;

for the condition that the positions of the water inlet holes (112) have different heights, the water inlet holes (112) are arranged in an upper layer and a lower layer.

11. Waterfall spraying deck plate (10) according to claim 10,

for the condition that the plurality of waterfall spraying holes (111) are distributed in an upper layer and a lower layer, the height difference between the waterfall spraying holes (111) positioned on the upper layer and the waterfall spraying holes (111) positioned on the lower layer is 80-140 mm;

and for the condition that the plurality of waterfall spraying holes (111) are distributed in an upper layer and a lower layer and the plurality of water inlet holes (112) are distributed in an upper layer and a lower layer, the water inlet holes (112) positioned on the upper layer are arranged above the waterfall spraying holes (111) positioned on the lower layer.

12. Waterfall spraying panel (10) according to claim 10,

at least one layer of the spraying waterfall holes (111) is multiple in number.

13. Waterfall spraying panel (10) according to claim 12,

the included angle between two adjacent waterfall spraying holes (111) positioned on the same layer is in the range of 18-35 degrees.

14. Waterfall spraying panel (10) according to claim 12,

the number of the spraying and waterfall holes (111) positioned on the upper layer is more than that of the spraying and waterfall holes (111) positioned on the lower layer.

15. Waterfall spraying panel (10) according to claim 14,

the number of the waterfall spraying holes (111) is four, three of the waterfall spraying holes (111) are positioned on the upper layer, and the other waterfall spraying hole (111) is positioned on the lower layer.

16. Waterfall spraying deck plate (10) according to claim 15,

two that are located the upper strata outside spout waterfall hole (111) symmetric distribution and be located the upper strata in the middle of spout the both sides of waterfall hole (111), be located the lower floor spout waterfall hole (111) and arrange being located the upper strata in the middle of spout waterfall hole (111) under.

17. Waterfall spraying panel (10) according to claim 16,

the cover plate body (11) comprises a main body (113) and two extending portions (114) which are symmetrically distributed on two sides of the main body (113) and connected with the upper portion of the main body (113), wherein the extending portions (114) are positioned in the middle of the upper layer, the waterfall spraying holes (111) are positioned in the lower layer, the waterfall spraying holes (111) are arranged in a plurality of positions, the water inlet holes (112) are arranged on the main body (113), and the waterfall spraying holes (111) are arranged on the outer side of the upper layer and are respectively arranged on the two extending portions (114).

18. Waterfall spraying panel (10) according to any one of claims 2 to 7,

be equipped with a plurality of water conservancy diversion muscle (12) that extend from bottom to top on apron body (11), adjacent two inject between muscle (12) and inject spout waterfall runner (115).

19. A dehydration tub assembly of a washing machine, comprising:

an inner barrel (20) enclosing a washing cavity;

the waterfall spraying cover plate (10) as claimed in any one of claims 1 to 18, mounted on the inner wall surface of the inner tub (20), a flow guiding channel defined between the flow guiding channel of the waterfall spraying cover plate (10) and the inner wall surface of the inner tub (20), the flow guiding channel communicating with the washing chamber through a waterfall spraying hole (111) and a water inlet hole (112) on the waterfall spraying cover plate (10).

20. The dewatering bucket assembly of claim 19,

the number of the waterfall spraying cover plates (10) is multiple, and the waterfall spraying cover plates (10) are uniformly distributed along the circumferential direction of the inner barrel (20).

21. A washing machine, characterized by comprising:

an outer tub assembly; and

the dewatering bucket assembly of claim 19 or 20 nested within the outer bucket assembly.