CN216551146U - Spout waterfall spare, washing barrel subassembly and washing equipment - Google Patents

Abstract

The application relates to the technical field of clothes treatment, and provides a spraying waterfall piece, a washing barrel assembly and washing equipment. The waterfall spraying piece is provided with a waterfall spraying opening, the waterfall spraying piece can be matched with the inner surface of a washing barrel of the washing equipment to form a waterfall spraying flow channel, the waterfall spraying flow channel comprises a water outlet section, the waterfall spraying opening is positioned at the position of the maximum width of the water outlet section, and the minimum width of the waterfall spraying opening is not less than the maximum width of the water outlet section. On one hand, the phenomenon that the waterfall spraying water pressure is too large due to the fact that the width of the waterfall spraying opening is small, and the water flow after flowing out cannot be sprayed to a proper area in the washing barrel can be avoided. On the other hand can make the position that goes out the water section and be close to the waterfall mouth of spouting have great width to water liquid flows through the play water width broad that spouts the waterfall mouth, avoids appearing spraying the dead angle, still is favorable to improving the sight of laundry process, and user experience feels good.

Description

Spout waterfall spare, washing barrel subassembly and washing equipment

Technical Field

The application relates to the technical field of clothes treatment, and provides a spraying waterfall piece, a washing barrel assembly and washing equipment.

Background

The conventional washing apparatus, such as a pulsator washing machine, includes a washing tub and a waterfall spraying cover plate, the waterfall spraying cover plate is covered on an inner surface of the washing tub to form a waterfall spraying flow passage, and the waterfall spraying cover plate has a water outlet communicated with the waterfall spraying flow passage. In the washing process of the pulsator washing machine, water flow in the washing barrel enters the waterfall spraying flow channel and then flows out of the water outlet. The water flow of the water outlet is a fine flow beam, visual water flow cannot be formed, spraying dead angles easily occur, the effect is not good, and the user experience is poor.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present application provides a waterfall spraying member, a washing tub assembly and a washing apparatus with good waterfall spraying effect.

An aspect of the embodiment of the present application provides a spout waterfall piece, includes:

the waterfall spraying piece is provided with a waterfall spraying opening, the waterfall spraying piece can be matched with the inner surface of a washing barrel of washing equipment to form a waterfall spraying flow channel, the waterfall spraying flow channel comprises a water outlet section, the waterfall spraying opening is located at the position of the maximum width of the water outlet section, and the minimum width of the waterfall spraying opening is not smaller than the maximum width of the water outlet section.

In some embodiments, the distance between the upper wall surface of the waterfall opening and the lower wall surface of the waterfall opening is between 1.5mm and 5.5 mm.

In some embodiments, the width of the waterfall opening gradually increases along the water flow ejecting direction.

In some embodiments, the included angle between two wall surfaces of the waterfall opening along the width direction is between 90 and 150 degrees.

In some embodiments, the upper wall surface of the waterfall opening is inclined downwards; and/or the presence of a gas in the gas,

the lower wall surface of the waterfall spraying opening is inclined downwards.

In some embodiments, the included angle between the upper wall surface of the waterfall spraying opening and the horizontal plane is between 2 and 12 degrees; and/or the presence of a gas in the gas,

the included angle between the lower wall surface of the waterfall spraying port and the horizontal plane is 2-12 degrees.

In some embodiments, the portion of the waterfall spraying member for forming the water outlet section is a water outlet portion, and the width of the water outlet portion gradually increases from bottom to top.

In some embodiments, the width of the outlet portion is between 15 ° and 75 ° along the included angle between the two walls in the width direction.

In some embodiments, the part of the waterfall spraying piece used for forming the water outlet section is a water outlet part, and the height of the water outlet part is 5% -15% of the height of the waterfall spraying piece.

In some embodiments, the waterfall spraying flow passage includes a flow guiding section, the water outlet section is located above the flow guiding section, the water outlet section is communicated with the flow guiding section and the waterfall spraying opening, and the width of one end of the water outlet section, which is far away from the flow guiding section, is greater than the width of one end of the water outlet section, which is close to the flow guiding section.

In some embodiments, the portion of the waterfall spraying member for forming the flow guiding section is a flow guiding portion, the flow guiding portion includes a water inlet sub-portion and a flow stabilizing sub-portion, the water inlet sub-portion is located below the flow stabilizing sub-portion, the flow stabilizing sub-portion connects the water inlet sub-portion and the waterfall spraying member for forming the water outlet section, and the flow stabilizing sub-portion has a uniform width at any position.

In some embodiments, the width of the flow stabilizer is 5% to 15% of the height of the waterfall member.

In some embodiments, the flow stabilizer portion protrudes in a direction away from an inner surface of the washing tub.

In some embodiments, the portion of the waterfall spraying member for forming the water outlet section is a water outlet portion, and the sum of the height of the flow stabilizing portion and the height of the water outlet portion is 49% -90% of the height of the waterfall spraying member.

Another aspect of the embodiments of the present application provides a washing tub assembly, including:

a washing tub;

the waterfall spraying piece of any one of the above, wherein the waterfall spraying piece is assembled on the inner surface of the washing barrel.

In some embodiments, the number of the spraying and waterfall pieces is multiple, and the multiple spraying and waterfall pieces are arranged at intervals along the circumference of the washing tub.

A further aspect of an embodiment of the present application provides a washing apparatus including the washing tub assembly as set forth in any one of the above.

The embodiment of the application provides a spout waterfall spare, can avoid on the one hand because spout waterfall water pressure that leads to less and too big of waterfall mouth width, the rivers after the outflow can't spray to suitable region in the washtub. On the other hand can make the position that goes out the water section and be close to the waterfall mouth of spouting have great width to water liquid flows through the play water width broad that spouts the waterfall mouth, avoids appearing spraying the dead angle, still is favorable to improving the sight of laundry process, improves the user to the directly perceived experience of laundry effect.

Drawings

Fig. 1 is a schematic structural view of a washing tub assembly according to an embodiment of the present application;

FIG. 2 is a schematic structural view of the structure shown in FIG. 1, wherein the waterfall member and the tub base are schematically illustrated;

FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;

fig. 4 is a schematic structural view of a waterfall spraying member in an embodiment of the present application;

FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective;

FIG. 6 is a cross-sectional view A-A of the structure shown in FIG. 4;

fig. 7 is a cross-sectional view B-B of the structure shown in fig. 4.

Description of the reference numerals

A neutral plane P;

a washing tub assembly 100; spraying a waterfall part 1; a washing tub 2; a balance ring 3; a waterfall spraying opening 1 a; a waterfall spraying flow passage 1 b; a water inlet 1 c; a water outlet part 13; a flow guide part 14; an insertion projection 15; a positioning pin 16; a waterfall spraying plate 17; a top plate 18; a water inlet area 2 a; an inlet edge 21; an annular tub 22; a tub base 23; positioning holes 2 b; a water outlet section 13 a; a flow guide section 14 a; first step surface 171; a second step surface 172; a water inlet sub-section 141; a ballast subsection 142; the water inlet segment 141 a; the ballast segment 142 a.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

In the description of the embodiment of the present application, the "up", "down", "top" and "bottom" orientations or positional relationships are orientations or positional relationships when the waterfall spraying member 1 is in normal use, for example, the orientations or positional relationships in fig. 4. It should be noted that the terms "width direction", "height direction" and "thickness direction" refer to the orientation of the waterfall member 1 as shown in fig. 4 and 5 during normal use. The term "first/second" merely distinguishes between different objects and does not denote the same or a relationship between the two. It is to be understood that such directional terms are merely for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application.

Referring to fig. 4 and 5, an aspect of the present disclosure provides a waterfall spraying member 1, where the waterfall spraying member 1 is formed with a waterfall spraying opening 1a, the waterfall spraying member 1 can cooperate with an inner surface of a washing tub 2 of a washing device to form a waterfall spraying flow channel 1b, the waterfall spraying flow channel 1b includes a water outlet section 13a, the waterfall spraying opening 1a is located at a position where a width of the water outlet section 13a is maximum, and a minimum width of the waterfall spraying opening 1a is not less than a maximum width of the water outlet section 13 a.

The waterfall member 1 is used in a washing apparatus, such as a pulsator washing machine, and the washing apparatus of the embodiment of the present application includes a washing tub assembly 100 of any embodiment of the present application. Referring to fig. 1, 2 and 3, the washing tub assembly 100 provided in an embodiment of the present invention includes a washing tub 2 and a waterfall spraying member 1 in any embodiment of the present invention, wherein the waterfall spraying member 1 is mounted on an inner surface of the washing tub 2. Specifically, the waterfall spraying piece 1 is arranged on the inner surface of the washing barrel 2 along the height direction of the washing barrel 2, and water liquid in the washing barrel 2 can flow out from bottom to top through a waterfall spraying opening 1a through a waterfall spraying flow passage 1b enclosed by the washing barrel 2 and the waterfall spraying piece 1. The inner surface of the washing barrel 2 can be fully utilized as a part of the inner wall of the waterfall flow channel 1b, the structure of the waterfall piece 1 can be simplified, the waterfall flow channel 1b is not required to be independently arranged in the waterfall piece 1, the thickness of the waterfall piece 1 is smaller, the structure of the washing barrel 2 is more compact, materials are saved, the manufacturing cost of the waterfall piece 1 is reduced, and the economical efficiency of products is improved.

The waterfall piece 1 that spouts that this application embodiment provided can avoid on the one hand because spout waterfall mouth 1a width less and the waterfall water pressure that leads to is too big, and the rivers after the outflow can't spray to suitable region in the washtub 2. On the other hand can make the position that goes out water section 13a and be close to waterfall mouth 1a spout have great width to water liquid flows through the play water width broad that spouts waterfall mouth 1a, avoids appearing spraying the dead angle, still is favorable to improving the sight of laundry process, improves the user to the directly perceived experience of laundry effect.

In an exemplary embodiment, referring to fig. 4, 5 and 6, the waterfall member 1 includes a waterfall plate 17 and a top plate 18, the waterfall plate 17 is disposed along the height direction, and the top plate 18 is disposed on the top side of the waterfall plate 17. The height d1 of the waterfall member 1 is the distance between the top end surface of the waterfall member 1 and the bottom end surface of the waterfall member 1, for example, the height d1 of the waterfall member 1 is the distance between the top end surface of the top plate 18 and the bottom end surface of the waterfall plate 17.

In one embodiment, referring to fig. 1 and 2, the washing tub assembly 100 includes a balance ring 3, the balance ring 3 surrounds the top end of the washing tub 2, the top end surface of the waterfall spraying member 1 abuts against the balance ring 3, and the bottom end surface of the waterfall spraying member 1 is spaced from the bottom surface of the washing tub 2. Therefore, the size of the waterfall spraying piece 1 along the height direction is relatively large, and the positions of the waterfall spraying flow passage 1b and the waterfall spraying opening 1a can be relatively high.

In order to more stably assemble the waterfall spraying member 1, in an embodiment, referring to fig. 1 and 2, the washing tub assembly 100 includes an insertion protrusion 15 and an insertion groove, the insertion protrusion 15 is disposed on a top end surface of the waterfall spraying member 1, such as a top end surface of the top plate 18, a spacing groove is formed between the balance ring 3 and the washing tub 2, and the insertion protrusion 15 is inserted into the spacing groove. Thus, the inserting groove can limit the degree of freedom of the inserting protrusion 15, and the waterfall spraying piece 1 can be stably assembled on the washing barrel 2 and is not easy to loosen.

In order to facilitate the rapid assembly of the waterfall spraying member 1 to the washing tub 2, in an exemplary embodiment, please refer to fig. 2, fig. 3 and fig. 5, a positioning pin 16 is formed at the bottom of the waterfall spraying member 1, a positioning hole 2b is formed on the inner surface of the washing tub 2, and the waterfall spraying member 1 is inserted into the positioning hole 2b through the positioning pin 16, so that the waterfall spraying member 1 is fixed to the bottom of the washing tub 2. The plug-in fixing is simple and reliable, and the installation is convenient.

In an embodiment, referring to fig. 4, 5 and 6, a distance between an upper wall surface of the waterfall opening 1a and a lower wall surface of the waterfall opening 1a is between 1.5mm and 5.5 mm. That is, the height d2 at any position of the waterfall spraying opening 1a along the height direction of the waterfall spraying piece 1 is between 1.5mm and 5.5 mm. Illustratively, it may be 1.5mm, 2mm, 2.5mm, 3.5mm, 5.5mm, etc. This kind of distance scope can make waterfall mouth 1a spout have along spouting 1 width direction broad of waterfall spare, along the narrower bar structure of direction of height, rivers can be followed the bar structure of spouting waterfall mouth 1a and flowed out and form the platykurtic water curtain, so can improve the sight, and the user experiences better directly perceived.

In an embodiment, referring to fig. 4, 5 and 7, the width of the waterfall opening 1a gradually increases along the water flow spraying direction. The width of the waterfall spraying opening 1a is gradually enlarged so that the waterfall spraying opening 1a forms a gradually flaring fan-shaped structure, and water flows out along the flaring spraying opening 1a to form a fan-shaped flat water curtain diffusing along the width direction, so that the spraying coverage of the water curtain is increased, the spraying dead angle is further reduced, and the cleaning ratio of clothes on a floating surface is improved.

In an exemplary embodiment, an included angle between two wall surfaces of the waterfall opening 1a along the width direction is between 90 ° and 150 °. That is, the flaring angle α of the fan-shaped flaring of the spout 1a may be 90 °, 110 °, 120 °, 135 °, 150 °, and so on. The flaring angle alpha is set in the range interval, so that the problem that a fan-shaped water curtain cannot be formed due to the fact that the flaring angle alpha is too small is avoided, and the influence on the water flow range and the impact strength on clothes due to the fact that the water flow strength is too small due to the fact that the flaring angle alpha is too large is avoided.

In one embodiment, referring to fig. 5, the waterfall spraying member 1 has a symmetrical structure with a neutral plane P, and the neutral plane P is perpendicular to the width direction of the waterfall spraying member 1 and passes through the middle points of the two ends of the waterfall spraying member 1 in the width direction. The waterfall spraying piece 1 with the symmetrical structure has the advantages of more attractive overall structure and better stability.

In an embodiment, referring to fig. 5 and 7, two wall surfaces of the waterfall opening 1a along the width direction are symmetrically arranged with respect to the neutral plane P of the waterfall member 1. So set up, can make and spout the fan-shaped rivers that waterfall mouth 1a flowed out and to the neutrality high, rivers outflow is more even, and the user's visible waterfall rivers that spout are whole to be perceived better.

In one embodiment, referring to fig. 4, 5 and 6, the upper wall surface of the waterfall opening 1a is inclined downwards; and/or the lower wall of the spout 1a is inclined downward. That is, the upper wall surface of the waterfall opening 1a may be inclined downward with respect to the horizontal plane, and the lower wall surface of the waterfall opening 1a may also be inclined downward with respect to the horizontal plane. If a plurality of waterfall spraying pieces 1 spray waterfalls at the same time, a plurality of waterfall spraying water flows are impacted mutually along the horizontal direction to easily cause water splashing, the upper wall surface and the lower wall surface are processed in an inclined manner to play a role in guiding the flowing water flow downwards in an inclined manner, the impact direction of the plurality of water flows when meeting can be changed, the splashing condition of water flowers is reduced, and the ornamental value of the waterfall spraying water flows and the use experience of users are improved; the impact strength of water flow downward to clothes can be increased to a certain extent, the tumbling effect of the clothes in the washing barrel 2 is better, and the washing effect is improved.

In an exemplary embodiment, referring to fig. 4, 5 and 6, an included angle between an upper wall surface of the waterfall opening 1a and a horizontal plane is between 2 ° and 12 °; and/or the included angle between the lower wall surface of the waterfall spraying opening 1a and the horizontal plane is 2-12 degrees. That is, the upper and lower wall surfaces of the waterfall opening 1a are inclined downward along the horizontal plane within the range of 2 ° to 12 °. For example, the tilt angle β may be 2 °, 4 °, 6 °, 9 °, 12 °, and so on. The inclination angle beta is set in the range interval, so that the waterfall spraying water flow control effect is good. The method has the advantages of avoiding poor effect of controlling splashing of the splash due to too small inclination angle beta, avoiding too short waterfall spraying range due to too large inclination angle beta, reducing water flow coverage and reducing ornamental value.

In an embodiment, referring to fig. 4 and 5, the waterfall flow passage 1b includes a flow guiding section 14a, a water outlet section 13a is located above the flow guiding section 14a, the water outlet section 13a communicates the flow guiding section 14a and the waterfall opening 1a, and a width of an end of the water outlet section 13a away from the flow guiding section 14a is greater than a width of an end of the water outlet section 13a close to the flow guiding section 14 a.

In an embodiment, referring to fig. 4 and 5, the part of the waterfall spraying member 1 for forming the water outlet section 13a is the water outlet portion 13, and the width of the water outlet portion 13 gradually increases from bottom to top. That is, the water outlet portion 13 is gradually flared in the water flow direction so that the water outlet section 13a is gradually enlarged in the width direction of the waterfall member 1. When water flows out to the water outlet part 13, the flow rate is gradually reduced, the flow area is gradually increased along with the increase of the width, the gradually-enlarged width cannot generate flow field mutation, the streamline transition of the water flow is smoother, the water flow is favorably formed into smooth flat waterfall spraying water flow when flowing to the waterfall spraying opening 1a, meanwhile, the water flow effect after gradual expansion is full, and the coverage area of the waterfall spraying water flow in the barrel is larger.

In an embodiment, two side lines of the water outlet section 13a along the width direction are straight lines, that is, the cross section of the water outlet section 13a is trapezoidal, the water outlet section 13a is arranged in a manner of gradually expanding the straight lines, the water flow change is linear, and the waterfall water flow spraying effect is fuller.

Specifically, in an embodiment, referring to fig. 4 and 5, an included angle between two wall surfaces of the width of the water outlet portion 13 along the width direction is between 15 ° and 75 °. For example, the angle γ between the two walls of the width of the nozzle portion 13 in the width direction may be 15 °, 30 °, 45 °, 60 °, 75 °, or the like. The width of the water outlet part 13 is good in gradual change effect by setting the included angle gamma in the range interval. The situation that the width of the waterfall spraying opening 1a is too narrow due to too small included angle gamma, the waterfall spraying water pressure is too large, and the effluent water flow cannot be sprayed to a proper area in the washing barrel 2 is avoided; and the condition that the width is changed too fast due to the overlarge included angle gamma, the waterflow intensity is reduced too much to influence the waterfall spraying range and reduce the water flow coverage range is avoided.

In an embodiment, referring to fig. 4 and 5, two wall surfaces of the water outlet portion 13 along the width direction are symmetrically arranged with respect to the neutral plane P of the waterfall member 1. By such arrangement, the water flow surface of the water outlet part 13 flowing to the waterfall spraying opening 1a is gradually enlarged and more uniform, the water flow strength loss caused by asymmetric flow channels is reduced, and the overall visual perception of the waterfall spraying water flow of a user is better.

In an embodiment, referring to fig. 4 and 5, the part of the waterfall spraying member 1 for forming the water outlet section 13a is the water outlet portion 13, and the height of the water outlet portion 13 is 5% -15% of the height of the waterfall spraying member 1. That is, the height d3 of the outlet portion 13 of the outlet section 13a with gradually enlarged width is 5-15% of the height d1 between the top end surface of the waterfall member 1 and the bottom end surface of the waterfall member 1. For example, the height d3 of the water outlet part 13 may be 5%, 7%, 10%, 13%, 15%, etc. of the height d1 of the waterfall member 1.

Because the water pressure of the water flow flowing through the diversion section 14a needs to ensure a certain water flow strength, and the diversion section 14a is communicated below the water outlet section 13a, the width of the water outlet part 13 is gradually enlarged along with the water flow direction, and the water flow strength of the water flow flowing through the water outlet part 13 is gradually reduced. Therefore, the height d3 of the water outlet portion 13 is set within this range, and the flow guiding effect of the water outlet portion 13 is good. With such an arrangement, on the one hand, the height d3 of the water outlet portion 13 can be ensured not to be too large, and the intensity of the water flow passing through the waterfall opening 1a can be reduced too early. On the other hand, the height d3 of the water outlet part 13 is not too small, so that the water flow width changes too fast, and the water flow flowing to the waterfall opening 1a is not smooth enough.

In an embodiment, referring to fig. 4 and 5, a portion of the waterfall spraying member 1 for forming the flow guiding section 14a is the flow guiding portion 14, the flow guiding portion 14 includes a water inlet sub-portion 141 and a flow stabilizing sub-portion 142, the water inlet sub-portion 141 is located below the flow stabilizing sub-portion 142, the flow stabilizing sub-portion 142 is connected to the water inlet sub-portion 141 and the waterfall spraying member 1 for forming the water outlet section 13a, and widths of any positions of the flow stabilizing sub-portion 142 are the same. Specifically, the guide section 14a includes a water inlet sub-section 141a and a flow stabilizing sub-section 142a, the water inlet sub-section 141a is located below the flow stabilizing sub-section 142a, the flow stabilizing sub-section 142a is connected to the water inlet sub-section 141a and the water outlet sub-section 13a, a portion where the water inlet sub-section 141a is formed is the water inlet sub-section 141, and a portion where the flow stabilizing sub-section 142a is formed is the flow stabilizing sub-section 142. The constant flow stabilizer 142 has a uniform width so that the water flow intensity is relatively stable during the rising process.

In one embodiment, the width of the water inlet sub-portion 141 is greater than the width of the current stabilizer portion 142, so that the water flow speed increases as the water flow from the water inlet sub-portion 141 to the current stabilizer portion 142 suddenly decreases, thereby increasing the water flow strength and ensuring the waterfall effect.

In an embodiment, referring to fig. 4 and 5, the width of the flow stabilizing sub-portion 142 is 5% to 15% of the height of the waterfall member 1. For example, the width d4 of the flow stabilizing sub-portion 142 may be 5%, 8%, 10%, 12%, 15%, etc. of the height d1 of the waterfall member 1. The arrangement can ensure that the flow stabilizing sub-portion 142 has a proper width, and can ensure a sufficient flow area while meeting the water flow strength.

In one embodiment, referring to fig. 4 and 5 and 7, the flow stabilizer 142 protrudes away from the inner surface of the washing tub. The thickness of the flow stabilizing sub-portion 142 at both sides in the width direction is smaller than that at the central region in the width direction, and the protruding flow stabilizing sub-portion 142 can make the water flow of the flow guiding section 14a have a larger flow area, and can increase the amount of waterfall spraying.

Specifically, in one embodiment, that is, the flow stabilizing sub-portion 142 has a cambered plate-shaped structure, and the thickness of the waterfall flow passage 1b gradually decreases from the center of the width direction to both sides of the width direction. The cambered surface platy structure has high smoothness, and the structure has no edge, so that clothes in the barrel cannot be damaged in the cleaning process.

In one embodiment, referring to fig. 4, 5 and 7, the maximum thickness of the flow stabilizer section 142a is not greater than 66% of the height of the waterfall member 1. That is, the thickness d5 of the center of the flow stabilizing section 142a in the width direction cannot be greater than 66% of the height d1 of the waterfall member 1, and if the maximum thickness d5 of the flow stabilizing section 142a is greater than 66%, the excessive thickness will cause the formation of corner edges in the cambered plate-shaped structure, which may easily damage the clothes during washing, and is not favorable for washing the clothes.

In an embodiment, referring to fig. 4, 5 and 7, the minimum thickness of the flow stabilizing section 142a is 0.5% to 7.5% of the height of the waterfall member 1. That is, the thickness d6 of the flow stabilizing sub-portion 142 at both sides in the width direction is 0.5-7.5% of the height d1 of the waterfall member 1. For example, the minimum thickness d6 of the flow stabilizer section 142a may be 0.5%, 2.3%, 4%, 5.8%, 7.5%, etc. of the height d1 of the waterfall member 1. The minimum thickness d6 of the flow stabilizer section 142a is within this range, and the flow-through performance of the water flow is good.

In an embodiment, referring to fig. 4 and 5, the portion of the waterfall spraying member 1 for forming the water outlet section 13a is the water outlet portion 13, and the sum of the height of the flow stabilizing portion 142 and the height of the water outlet portion 13 is 49% -90% of the height of the waterfall spraying member 1. That is, the total height d7 of the steady flow sub-portion 142 with the same width and the water outlet portion 13 with the gradually expanding width is 49% -90% of the height d1 of the waterfall member 1. For example, the total height d7 of the flow stabilizer 142 and the water outlet portion 13 may account for 49%, 60%, 70%, 80%, 90%, etc. of the height d1 of the waterfall member 1. With such an arrangement, since the waterfall outlet 1a is communicated above the water outlet portion 13, the total height d7 of the flow stabilizing portion 142 and the water outlet portion 13 can be adjusted, so as to adjust the water outlet height of the waterfall outlet 1a to adapt to different laundry devices.

The bottom end surface of the waterfall spraying piece 1 and the inner surface of the washing barrel 2 are arranged at intervals to form a water inlet 1c of a waterfall spraying flow passage 1b, the waterfall spraying opening 1a is positioned above the water inlet 1c, and the waterfall spraying flow passage 1b is communicated with the water inlet 1c and the waterfall spraying opening 1 a. The water flow in the washing tub 2 flows into the waterfall flow passage 1b along the water inlet 1 c. The bottom end face of the waterfall spraying piece 1 and the inner surface of the existing washing barrel 2 are arranged at intervals to form a water inlet 1c, so that the position of the water inlet 1c is located at a lower position, on one hand, water flow in the washing barrel 2 conveniently and smoothly enters the waterfall spraying flow channel 1b through the water inlet 1c, the water inflow is large, on the other hand, the water inlet 1c does not need to be formed in the waterfall spraying piece 1 independently, the structure is simple, and the manufacturing cost of the waterfall spraying piece 1 is lower.

In an embodiment, referring to fig. 4, 5 and 6, a first step surface 171 and a second step surface 172 are formed at the bottom of the waterfall plate 17, and the height of the second step surface 172 is lower than that of the first step surface 171. The positioning pin 16 is formed on the first step surface 171, the first step surface 171 abuts against the surrounding portion of the positioning hole 2b, and the second step surface 172 is spaced from the inner surface of the washing tub 2 to form the water inlet 1 c.

In one embodiment, referring to fig. 2, the height of the water inlet 1c is 15 mm-35 mm. That is, the distance d8 between the bottom end surface of the waterfall member 1 and the inner surface of the washing tub 2 is in the range of 15mm to 35 mm. Illustratively, the height d8 of the water inlet 1c may be 15mm, 20mm, 25mm, 30mm, 35mm, etc. If the height d8 of the inlet 1c is too large, the flow area will be too large, the water flow into the inlet 1c will be slow and the water flow will not be strong. If the height d8 of the inlet 1c is too small, the flow area is too small to allow enough water to flow. Therefore, the height d8 of the water inlet 1c is in the range, the flow area of the water inlet 1c is suitable, and the water flow strength is good.

In one embodiment, referring to fig. 2 and 3, the width of the inlet 1c is gradually reduced along the water flowing direction. When water liquid just flowed into water inlet 1c, water inlet 1c width is great, can let more rivers flow in water inlet 1c like this, and the width of water inlet 1c dwindles gradually afterwards, and the velocity of flow of rivers will increase, can improve like this and get into the rivers intensity that spouts waterfall flow path 1 b.

Specifically, in an embodiment, please refer to fig. 2 and 3, a recessed water inlet area 2a is formed at the bottom of the washing tub 2, and the waterfall spraying member 1 is disposed in the water inlet area 2 a. That is, a water inlet 1c is formed between the bottom end surface of the waterfall member 1 and the depression. Be provided with sunken intake area 2a, not only can be convenient for installer to discern fast and spout the mounted position of waterfall piece 1, intake area 2a still has prepositioned effect, spouts the installation of waterfall piece 1 more convenient and reliable. The two sides of the washing tub 2 along the width direction, which are used for forming the water inlet 1c, are inlet sides 21, and the included angle between the two inlet sides 21 is 45-180 degrees. Illustratively, the included angle θ between the two inlet sides 21 may be 45 °, 79 °, 113 °, 146 °, 180 °, and the like, and the width of the inlet 1c is gradually changed when the included angle θ between the inlet sides 21 is set to the above range. The problem that the width of the water inlet 1c is too narrow due to the fact that the included angle theta is too small, and the spraying waterfall range is influenced due to the fact that no enough water flows into the spraying waterfall flow channel 1b is avoided; and the situation that excessive water flows into the waterfall spraying flow passage 1b due to the overlarge included angle theta and the water after flowing out cannot be sprayed to a proper area in the washing barrel 2 is avoided.

In one embodiment, the washing tub 2 includes an annular tub body 22 and a tub base 23 connected to a lower portion of the annular tub body 22, and the tub base 23 has a positioning hole 2b, a recessed water inlet region 2a, and an inlet edge 21 located at the water inlet region 2 a.

In one embodiment, referring to fig. 2 and 3, the two inlet sides 21 are symmetrically arranged with respect to the neutral plane P of the waterfall member 1. So set up, can make the water flow surface who is located water inlet 1c expand more evenly gradually, reduce because the rivers intensity loss that the runner asymmetry leads to, the user is visible spouts waterfall rivers whole sense of appearance better.

In one embodiment, referring to fig. 2 and 3, the minimum width between the two inlet edges 21 is between 50mm and 90 mm. The width between the inlet edges 21 in the direction of the water flow is increasingly narrow, i.e. the width d9 at the narrowest distance between the inlet edges 21 is between 50mm and 90 mm. Illustratively, the minimum width d9 between the two inlet edges 21 may be 50mm, 60mm, 70mm, 80mm, 90mm, etc. If the minimum width d9 between the two inlet edges 21 is too large, the flow area will be too large, the flow of water into the inlet 1c will be slow and the strength of the flow will not be high. If the minimum width d9 between the inlet edges 21 is too small, the flow area is too small to allow enough water to flow. Therefore, the minimum width d9 between the two inlet edges 21 is in this range, the flow area of the inlet 1c is appropriate, and the water flow strength is good.

In an embodiment, referring to fig. 1, 2 and 3, the number of the waterfall spraying members 1 is multiple, and the multiple waterfall spraying members 1 are arranged at intervals along the circumferential direction of the washing tub 2. That is to say, the waterfall spraying pieces 1 arranged in the washing tub 2 may be one or multiple, the multiple waterfall spraying pieces 1 are arranged at intervals to further increase the coverage of waterfall spraying water flow, and illustratively, the four waterfall spraying pieces 1 are uniformly arranged on the inner surface of the washing tub 2 at intervals along the circumferential direction of the washing tub 2, so that the waterfall spraying water flow can realize omnibearing waterfall spraying coverage on the washing tub 2.

The various embodiments/implementations provided herein may be combined with each other without contradiction. The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (17)

1. The waterfall spraying piece is characterized in that a waterfall spraying opening is formed in the waterfall spraying piece, the waterfall spraying piece can be matched with the inner surface of a washing barrel of washing equipment to form a waterfall spraying flow channel, the waterfall spraying flow channel comprises a water outlet section, the waterfall spraying opening is located at the position of the maximum width of the water outlet section, and the minimum width of the waterfall spraying opening is not smaller than the maximum width of the water outlet section.

2. The waterfall spraying piece as claimed in claim 1, wherein the distance between the upper wall surface of the waterfall spraying opening and the lower wall surface of the waterfall spraying opening is between 1.5mm and 5.5 mm.

3. The waterfall member as claimed in claim 1, wherein the width of the waterfall opening gradually increases along the direction of water flow.

4. The waterfall spraying member as claimed in claim 3, wherein the included angle between two wall surfaces of the waterfall spraying opening along the width direction is between 90 ° and 150 °.

5. The waterfall member as claimed in claim 1, wherein the upper wall surface of the waterfall opening is downwardly sloped; and/or the presence of a gas in the gas,

the lower wall surface of the waterfall spraying opening is inclined downwards.

6. The waterfall spraying piece as claimed in claim 5, wherein the included angle between the upper wall surface of the waterfall spraying opening and the horizontal plane is between 2 ° and 12 °; and/or the presence of a gas in the gas,

the included angle between the lower wall surface of the waterfall spraying port and the horizontal plane is 2-12 degrees.

7. The waterfall spraying piece according to any one of claims 1 to 6, wherein a portion of the waterfall spraying piece for forming the water outlet section is a water outlet portion, and the width of the water outlet portion gradually increases from bottom to top.

8. The waterfall spraying piece as claimed in claim 7, wherein the width of the water outlet part forms an included angle between two wall surfaces along the width direction of the water outlet part, and the included angle is 15-75 degrees.

9. The waterfall spraying member as claimed in any one of claims 1 to 6, wherein the portion of the waterfall spraying member forming the water outlet section is a water outlet portion, and the height of the water outlet portion is 5% to 15% of the height of the waterfall spraying member.

10. The waterfall spraying piece as claimed in any one of claims 1 to 6, wherein the waterfall spraying channel comprises a diversion section, the water outlet section is located above the diversion section, the water outlet section is communicated with the diversion section and the waterfall spraying opening, and the width of the end of the water outlet section far away from the diversion section is greater than the width of the end of the water outlet section close to the diversion section.

11. The waterfall spraying member as claimed in claim 10, wherein the portion of the waterfall spraying member for forming the flow guiding section is a flow guiding portion, the flow guiding portion includes a water inlet sub-portion and a flow stabilizing sub-portion, the water inlet sub-portion is located below the flow stabilizing sub-portion, the flow stabilizing sub-portion connects the water inlet sub-portion and the waterfall spraying member for forming the water outlet section, and the flow stabilizing sub-portion has a uniform width at any position.

12. The waterfall member as claimed in claim 11, wherein the width of the flow stabilizer portion is 5-15% of the height of the waterfall member.

13. The waterfall member as recited in claim 11, wherein the flow stabilizer portion protrudes away from the interior surface of the wash tub.

14. The waterfall spraying member as claimed in claim 11, wherein the portion of the waterfall spraying member for forming the water outlet section is a water outlet portion, and the sum of the height of the flow stabilizing portion and the height of the water outlet portion is 49-90% of the height of the waterfall spraying member.

15. A washing tub assembly, comprising:

a washing tub;

the waterfall member as claimed in any one of claims 1 to 14, wherein the waterfall member is mounted on an interior surface of the washing tub.

16. The washing tub assembly of claim 15, wherein the number of the waterfall spraying members is plural, and the plural waterfall spraying members are arranged at intervals along a circumferential direction of the washing tub.

17. A washing appliance comprising a washing tub assembly as claimed in claim 15 or 16.

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