Waterfall water channel structure and washing machine

Abstract

The invention discloses a waterfall water channel structure and a washing machine, and belongs to the field of washing machines. The waterfall water channel structure comprises a water channel structure body with a certain extension length. The main water channel is arranged in the water channel structure body, extends from one end to the other end in the length extension direction of the water channel structure body and is used for water inflow; and the backflow part is concavely arranged on the inner wall of the main water channel, communicates with the main water channel and is used for preventing water flow from falling back to one end of the water channel structure body after entering. The backflow part which is arranged in the sunken mode is arranged, and the backflow part can play a role in storing water and preventing water flow from falling back; when the water flow falls back, the water flow flows to the backflow part, the backflow part can block the water flow from falling back and slow down the water flow from falling back, the water flow falling time is prolonged, the duration time of waterfall water flow is prolonged, and the spraying effect can be enhanced; after the impeller is switched, part of water still exists in the main water channel, water is stored in the backflow part, the main water channel can be rapidly filled with water flow, and forming of waterfall water flow is accelerated.

Description

Technical Field

[0001] The invention belongs to the field of washing machines, and in particular relates to a waterfall waterway structure and a washing machine. Background Art

[0002] A washing machine is a cleaning appliance that uses electrical energy to generate mechanical action to wash clothes. Common types of washing machines include pulsator washing machines and drum washing machines.

[0003] The clothes on the top of the washing drum of a pulsator washing machine float on the water. The power transmitted to the top by the rotation of the pulsator is small, and it is difficult to turn over the clothes on the top. For this reason, a waterfall waterway is often provided to spray water from top to bottom, making it easy to turn over the clothes on the top.

[0004] At present, the waterfall waterway of the washing machine only plays a drainage effect. When the impeller of the washing machine rotates, the water in the washing tub is driven up along the waterway by the rotation of the impeller to form a waterfall flow. When the impeller stops, the water in the waterway will instantly fall back. There is an interval time when the impeller switches forward and reverse. During this time, the waterfall flow lasts for a short time or even no waterfall flow.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, and the purpose is to provide a waterfall waterway structure, in which a main waterway is provided with a concave reflux portion, which can store water and prevent the water flow from falling back; when the water flows back, the water flows to the reflux portion, and the reflux portion will prevent the water flow from falling back, slowing down the water flow, prolonging the water flow return time, and then prolonging the duration of the waterfall water flow, which can enhance the spraying effect; after the impeller switches the direction, there is still some water in the main waterway, and there is water stored in the reflux portion, the water flow can quickly fill the main waterway, and accelerate the formation of the waterfall water flow.

[0007] Another object of the present invention is to provide a washing machine.

[0008] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: to provide a waterfall waterway structure, including:

[0009] The waterway structure body has a certain extension length;

[0010] A main water channel is arranged in the water channel structure body, extending from one end to the other end in the length extension direction of the water channel structure body, and is used for water intake;

[0011] The reflux portion is recessed and arranged on the inner wall of the main water channel, is communicated with the main water channel, and is used to prevent water from flowing back toward one end of the water channel structure body after entering the water channel.

[0012] Further, the reflux portion has an opening;

[0013] The inner wall of the reflux portion close to one end of the water channel structure body is inclined and extends outwardly to the opening toward the other end of the water channel structure body, so as to guide the water entering the reflux portion to flow toward the other end of the water channel structure body.

[0014] Furthermore, the reflux portion is recessed inwardly on the inner wall of the main water channel and recessed toward one end of the water channel structure body to form a water storage cavity having the opening;

[0015] The bottom wall of the water storage cavity is arranged in an arc-shaped depression, and the bottom wall is arranged to extend outwardly in an inclined manner toward the other end of the water channel structure body at one end close to the opening and protrude from the inner wall of the main water channel at the outer periphery of the opening.

[0016] Furthermore, a guide rib is provided in the water storage cavity, one end of the guide rib is arranged in the water storage cavity, and the other end extends outward and penetrates the opening;

[0017] One side of the guide rib and the top wall of the water storage chamber form an inlet flow channel, and the other side of the guide rib and the bottom wall of the water storage chamber form an outlet flow channel, which is connected to the inlet flow channel and is used to guide the incoming water flow to flow toward the other end of the main water channel to form a backflow.

[0018] Furthermore, the guide rib is plate-shaped and is laterally inclined in the water storage cavity. There is a certain gap between one end of the guide rib and the inner wall of the water storage cavity, and the other end of the guide rib extends outward to the main water channel outside the water storage cavity.

[0019] Furthermore, one side wall of the water channel structure body in the length extension direction is open and communicated with the main water channel;

[0020] The reflux parts are respectively arranged on two inner side walls opposite to the main water channel, and the two inner side walls are adjacent to the opening.

[0021] Furthermore, the plurality of recirculation portions are respectively arranged on two opposite inner walls of the main water channel and are staggered in the direction of water flow.

[0022] Furthermore, the two inner walls of the main water channel adjacent to the opening are respectively provided with guide platforms extending along the water flow direction;

[0023] The two guide platforms are arranged opposite to each other and at intervals, and the plurality of reflow parts are respectively arranged on the two guide platforms and are arranged alternately.

[0024] Furthermore, a water inlet and a plurality of water outlets are provided on the main water channel, wherein the water inlet is arranged at one end of the main water channel; and one of the water outlets is arranged at the other end of the main water channel;

[0025] Two relatively spaced guide platforms form a group. Multiple groups of guide platforms are spaced along the water flow direction in the main waterway. Water outlets are arranged between two adjacent groups of guide platforms. Adjacent return parts on two adjacent groups of guide platforms are staggered.

[0026] Furthermore, the present invention also provides a washing machine with any of the above-mentioned waterfall waterway structures, characterized in that: it comprises a washing tub, and the waterway structure body is vertically arranged on the inner peripheral wall of the washing tub;

[0027] Preferably, there are a plurality of water channel structure bodies, and the plurality of water channel structure bodies are circumferentially spaced apart and arranged on the inner circumferential wall of the washing tub.

[0028] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0029] (1) The present invention is provided with a concave reflux portion, which can store water and prevent water from falling back; when the water flows back, the water flows to the reflux portion, and the reflux portion will prevent the water from falling back, slowing down the water flow, prolonging the water flow back time, and thus prolonging the duration of the waterfall water flow, which can enhance the spraying effect; after the impeller switches the direction, there is still some water in the main water channel, and there is water stored in the reflux portion, so the water flow can quickly fill the main water channel, accelerating the formation of the waterfall water flow.

[0030] (2) In the present invention, the inner wall of the reflux portion near the opening extends obliquely toward the other end of the waterway structure body, which can guide the water flow to form a reflux when the water flow falls back, slowing down the water flow and facilitating extending the duration of the waterfall water flow.

[0031] (3) In the present invention, by providing guide ribs, the water flow can be guided into the water storage chamber when the water flow falls back, thereby increasing the water flow entering the water storage chamber, facilitating the rapid formation of the backflow, and extending the duration of the backflow.

[0032] (4) In the present invention, multiple reflux parts are respectively arranged on two guide platforms and staggered, which can avoid the reflux formed in the two oppositely arranged reflux parts from colliding with each other and wasting the reflux energy itself, and the multiple reflux parts can play a role of mutual cooperation.

[0033] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0035] Figure 1 It is a schematic diagram of a waterfall waterway structure of the present invention;

[0036] Figure 2 The present invention Figure 1 Schematic diagram from another angle;

[0037] Figure 3 It is a schematic diagram of the assembly of the water channel structure body and the washing tub in the washing machine in the present invention;

[0038] Figure 4 The present invention Figure 3 Cross-sectional view at AA in the middle.

[0039] In the figure: 1. water channel structure body; 10. main water channel; 11. reflux part; 111. water storage chamber; 12. guide ribs; 13. guide platform; 131. first water guide section; 132. second water guide section; 2. washing tub.

[0040] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0042] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] like Figures 1 to 4 As shown, a waterfall waterway structure described in the present invention includes a waterway structure body 1.

[0045] The water channel structure body 1 has a certain extension length.

[0046] The main water channel 10 is disposed in the water channel structure body 1 , extending from one end to the other end of the water channel structure body 1 in the length extension direction, and is used for water intake.

[0047] The water channel structure body 1 is usually arranged on the inner wall of the washing tub 2 of the washing machine and is arranged vertically. A pulsator is arranged in the washing tub 2, and the pulsator is arranged close to the bottom wall of the washing tub 2. The pulsator is located below the water channel structure body 1, and there is a gap between the upper end of the pulsator and the lower end of the water channel structure body 1. The main water channel 10 has a water inlet and a water outlet, and the water inlet is usually located below the water outlet. When the pulsator rotates, water enters the main water channel 10 from the water inlet, flows upward and flows out from the water outlet to form a waterfall water flow to wash the clothes.

[0048] The waterfall waterway structure of the present invention also has a reflux portion 11, which is recessed on the inner wall of the main waterway 10 and communicated with the main waterway 10 to prevent water from flowing back toward one end of the waterway structure body 1 after entering the water.

[0049] In the present invention, a concave reflux portion 11 is provided, and the reflux portion 11 can store water and prevent water from falling back; when the water flows back, the water flows to the reflux portion 11, and the reflux portion 11 can prevent the water from falling back, slowing down the water flow, prolonging the water flow back time, and further prolonging the duration of the waterfall water flow, which can enhance the spraying effect; after the impeller switches the direction, there is still some water in the main water channel 10, and there is water stored in the reflux portion 11, the water flow can quickly fill the main water channel 10, and accelerate the formation of the waterfall water flow.

[0050] Specifically, the waterfall waterway structure is usually arranged vertically, and the length extension direction of the waterway structure body 1 is vertical. One end of the waterway structure body 1 is the water inlet direction, which refers to the lower end of the waterway structure body 1. The waterway structure body 1 is mainly composed of a vertical plate, two side plates and a top plate. The vertical plate, the two side plates and the top plate are all vertically extended, and one end of the two side plates is arranged on one side of the vertical plate and is relatively parallel. The top plate connects the upper ends of the two side plates and is connected to one side of the vertical plate to form a box body. The box body has a chamber and is open at the lower end. The box body is open on one side relative to the vertical plate. The main waterway 10 is vertically arranged in the chamber and is connected to the opening. Water enters the lower end of the main waterway 10.

[0051] When washing clothes, the centrifugal force generated by the forward and reverse rotation of the impeller can drive the water flow. Under the action of the centrifugal force, the water flows into the lower end of the main water channel 10, flows from bottom to top, and sprays out from the outlet of the main water channel 10. When the centrifugal force continuously acts on the water flow, the water flow fills the main water channel 10, and sprays out from the outlet of the main water channel 10 to form a waterfall water flow. The waterfall water flow is uninterrupted and sprays from top to bottom, which can make the clothes located above easy to turn over and enhance the washing effect. When the centrifugal force disappears, the water flow no longer enters the main water channel 10, and the water flow in the main water channel 10 falls back instantly. The waterfall water flow lasts for a short time or even disappears directly. Then when the centrifugal force continues to act on the water flow, the waterfall water flow resumes spraying.

[0052] In the prior art, there is an interval during the time when the centrifugal force disappears, that is, when the impeller switches forward and reverse, during which the duration of the waterfall water flow is short, or even no waterfall water flow exists, which is inconvenient to use; and because the water flow falls back quickly, the water flow in the main water channel 10 is small or even no water flow exists. After the impeller switches to a different direction, it drives the water flow to flow, and the water flow needs to refill the main water channel 10 to form a waterfall water flow, which increases the formation time of the waterfall water flow. Therefore, a waterfall waterway structure is needed that can extend the duration of the waterfall water flow when the impeller switches forward and reverse, and quickly form the waterfall water flow after the impeller switches to a different direction.

[0053] like Figure 2As shown, in the present invention, the reflux portion 11 is additionally provided in the main water channel 10, and the reflux portion 11 is recessed to store water and prevent water from falling back. When the impeller rotates, the water flows into the lower end of the main water channel 10 under the action of centrifugal force, flows from bottom to top along the main water channel 10, and a part of the water flows through the reflux portion 11, which is filled with water. When the impeller switches the direction, the water flows no longer into the main water channel 10, and the water in the main water channel 10 falls back, and a part of the water flows to the reflux portion 11. The reflux portion 11 can block the water flow, slow down the fall of the water flow, and extend the fall time of the water flow, thereby extending the duration of the waterfall water flow. Because the fall time of the water flow becomes longer, when the impeller switches the direction and rotates, there is still a part of water in the main water channel 10, and there is also a part of water in the reflux portion 11. It is not necessary to refill the main water channel 10 from scratch, and only a part of the water is needed to refill the main water channel 10, which reduces the required water consumption, allows the water flow to quickly fill the main water channel 10, and allows the waterfall water flow to quickly take shape, which is easy to use.

[0054] Preferably, the inner diameter of the water inlet at the lower end of the main water channel 10 gradually decreases from bottom to top.

[0055] The inner diameter of the water inlet at the lower end of the main water channel 10 gradually decreases, which can speed up the water inlet speed of the main water channel 10 .

[0056] The return portion 11 has an opening.

[0057] The inner wall of the reflux portion 11 close to one end of the water channel structure body 1 extends outwardly to the opening in an inclined direction toward the other end of the water channel structure body 1 , so as to guide the water entering the reflux portion 11 to flow toward the other end of the water channel structure body 1 .

[0058] In the present invention, the inner wall of the reflux portion 11 near the opening extends obliquely toward the other end of the waterway structure body 1, which can guide the water flow to form a reflux when the water flows back, slowing down the water flow and facilitating extending the duration of the waterfall water flow.

[0059] Specifically, the reflux portion 11 has an opening so as to be connected to the main water channel 10; when the water flows upward from bottom to top, the water flows into the reflux portion 11 through the opening and fills the reflux portion 11; when the water flows downward, the water flows into the reflux portion 11 through the opening, forming a reflux, slowing down the speed of the water flow, and prolonging the duration of the water flow in the main water channel 10, thereby prolonging the duration of the waterfall water flow and enhancing the washing effect. The inner wall of the reflux portion 11 near the opening is inclined and extended toward the other end of the water channel structure body 1, such as Figure 2As shown, the bottom wall of the reflux portion 11 near the opening is extended upwardly at an angle, which can guide the water flow upward and the direction in which the reflux flows out. The reflux flows upward at an angle, which has a better effect of slowing down the water flow.

[0060] The reflux portion 11 is recessed inwardly on the inner wall of the main water channel 10 and is recessed toward one end of the water channel structure body 1 to form a water storage cavity 111 having the opening.

[0061] The bottom wall of the water storage chamber 111 is arranged in an arc-shaped depression, and the bottom wall is arranged to extend outwardly and obliquely toward the other end of the water channel structure body 1 near one end of the opening and protrude from the inner wall of the main water channel 10 at the periphery of the opening.

[0062] like Figure 2 As shown, the inner wall of the reflux portion 11 that is recessed toward one end of the waterway structure body 1 is mainly used for water storage. Specifically, the reflux portion 11 is recessed inward and downward to form the water storage chamber 111. The inner wall of the reflux portion 11 that is recessed downward is mainly used for water storage. The bottom wall of the water storage chamber 111 is recessed in an arc shape to facilitate water storage. The end of the bottom wall of the water storage chamber 111 extends upward and protrudes from the inner walls on both sides of the main waterway 10, which is convenient for the water flow to form a reflux. When the water flows upward, the water storage chamber 111 can store a part of the water; when the water flows downward, part of the water flows into the water storage chamber 111 to squeeze out the stored water, forming a reflux, slowing down the fall of the water flow. The water stored in the water storage chamber 111 when the water flows upward, plus the water that enters the water storage chamber 111 when the water flows downward, the water flow formed by the cooperation of the two increases the water flow of the reflux, prolongs the duration of the reflux, and is conducive to slowing down the fall of the water flow.

[0063] A guide rib 12 is provided in the water storage cavity 111 , one end of the guide rib 12 is disposed in the water storage cavity 111 , and the other end of the guide rib 12 extends outward and penetrates the opening.

[0064] One side of the guide rib 12 forms an inlet flow channel with the top wall of the water storage chamber 111, and the other side of the guide rib 12 forms an outlet flow channel with the bottom wall of the water storage chamber 111, which is connected to the inlet flow channel and is used to guide the incoming water flow to flow toward the other end of the main water channel 10 to form a backflow.

[0065] In the present invention, by providing the guide rib 12, the water flow can be guided into the water storage chamber 111 when the water flow falls back, thereby increasing the water flow entering the water storage chamber 111, facilitating the rapid formation of the backflow and extending the duration of the backflow.

[0066] like Figure 2As shown, the other end of the guide rib 12 is arranged through the opening, and the two sides of the guide rib 12 respectively form the inlet flow channel and the outlet flow channel with the inner wall of the water storage chamber 111. When the water flow falls back, the water flow enters the water storage chamber 111 from the inlet flow channel and then flows out along the outlet flow channel. The guide rib 12 can play a role in guiding the water flow, so that the water flow can better enter the water storage chamber 111 when the water flow falls back, increase the water flow entering the water storage chamber 111, and then increase the water flow forming the backflow. The water flow enters the water storage chamber 111 faster and more, which can not only accelerate the rapid formation of the backflow, but also prolong the duration of the backflow, which is conducive to slowing down the water flow and prolonging the duration of the waterfall water flow.

[0067] Specifically, the guide rib 12 is set in a triangle shape, and one side of the guide rib 12 is set to be inclined upward, so that the water flow can be guided into the water storage chamber 111; the guide rib 12 is set in a quadrilateral shape, and one side of the guide rib 12 is set to be inclined upward, so that the water flow can be guided into the water storage chamber 111; similarly, the guide rib 12 can be set in other shapes, such as a quarter circle, a semicircle, etc. The guide rib 12 can be set in a variety of shapes and in a variety of settings, as long as it can guide the water flow into the water storage chamber 111.

[0068] Preferably, the shape and arrangement of the guide rib 12 are adapted to the shape and structure of the inner wall of the water storage chamber 111 .

[0069] The guide rib 12 is plate-shaped and is laterally inclined in the water storage cavity 111 . There is a certain gap between one end of the guide rib 12 and the inner wall of the water storage cavity 111 . The other end of the guide rib 12 extends outward to the main water channel 10 outside the water storage cavity 111 .

[0070] Specifically, the water storage chamber 111 includes a top wall section, a connecting section section and a bottom wall section which are connected in sequence;

[0071] The top wall section is arranged to extend inwardly in an arc shape from the upper side edge of the opening, the connecting section is arranged to extend vertically from the top wall section, the bottom wall section is arranged to be recessed and arc-shaped from the connecting section toward one end of the length of the water channel structure body 1, and the opening is formed between the top wall section and the bottom wall section.

[0072] The top wall section, the connecting section and the bottom wall section are all arranged on the inner wall of the other side of the main water channel 10 .

[0073] One end of the bottom wall section close to the opening protrudes out from the inner wall of the main water channel 10 adjacent to one side of the main water channel 10 .

[0074] One side wall of the water channel structure body 1 in the length extension direction is open and connected to the main water channel 10 .

[0075] The reflux portions 11 are respectively disposed on two opposite inner side walls of the main water channel 10 , and the two inner side walls are adjacent to the opening.

[0076] Specifically, in one embodiment of the present invention, the chamber of the box body is configured as the main water channel 10 .

[0077] In another embodiment of the present invention, two vertically extending ribs are provided in the box body cavity formed by the top plate, the two side plates and the vertical plate, the ribs have a certain thickness and are connected to the vertical plates, and one side of the vertical plate and the two ribs enclose the main water channel 10.

[0078] The top wall section is arranged to extend obliquely from top to bottom, one end of the top wall section is close to the center line of the main water channel 10, and the other end of the top wall section is close to the edge of the main water channel 10, the height of the end of the top wall section close to the center line of the main water channel 10 is higher than the height of the other end of the top wall section, one end of the connecting section is connected to the other end of the top wall section and extends vertically, one end of the bottom wall section is connected to the other end of the connecting section, the bottom wall section is arranged in an arc shape and is in a semi-ring shape to facilitate water storage, and the other end of the bottom wall section is arranged to extend obliquely upward.

[0079] One end of the guide rib 12 is located in the water storage cavity 111 , and the other end passes through the opening and extends obliquely from bottom to top. The height of one end of the guide rib 12 located in the water storage cavity 111 is lower than the height of the other end of the guide rib 12 .

[0080] The inclination angle of the top wall section is smaller than the inclination angle of the guide rib 12, the angle between the top wall section and the center line of the main water channel 10 is smaller than the angle between the guide rib 12 and the main water channel 10, and the distance from one end of the top wall section to the center line of the main water channel 10 is greater than the distance from the other end of the guide rib 12 to the center line of the main water channel 10, so as to guide the falling water flow into the water storage chamber 111.

[0081] The inclination angle of the other end of the bottom wall section is greater than the inclination angle of the guide rib 12, and the angle between the bottom wall section and the center line of the main water channel 10 is greater than the angle between the guide rib 12 and the main water channel 10, so that when the water flows back, the backflow is guided to flow obliquely upward to slow down the falling of the water flow; the distance from the other end of the bottom wall section to the center line of the main water channel 10 is greater than the distance from the other end of the guide rib 12 to the center line of the main water channel 10, so that when the water flows upward, it is convenient for the water to enter the water storage chamber 111.

[0082] The plurality of reflow portions 11 are respectively disposed on two opposite inner walls of the main water channel 10 and are staggered in the water flow direction.

[0083] In one embodiment of the present invention, part of the side plate is recessed inwardly and downwardly and forms a plurality of vertically spaced return portions 11 with one side of the vertical plate.

[0084] Specifically, the side plate has a plurality of first curved sections, which are vertically spaced apart to form the return portion 11. The other end of the guide rib 12 protrudes from the inner wall of the side plate, so that when the water flows back, the guide rib 12 can guide the water to smoothly enter the water storage chamber 111.

[0085] In another embodiment of the present invention, part of the convex ribs are recessed inwardly and downwardly and form a plurality of vertically spaced return portions 11 with one side of the vertical plate.

[0086] Specifically, the convex rib has a plurality of second curved sections, which are vertically spaced apart to form the return portion 11. The other end of the guide rib 12 protrudes from the side wall of the convex rib, so that when the water flows back, the guide rib 12 can guide the water flow to smoothly enter the water storage chamber 111.

[0087] In another embodiment of the present invention, two inner walls of the main water channel 10 adjacent to the opening are respectively provided with guide platforms 13 extending along the water flow direction.

[0088] The two guide platforms 13 are disposed opposite to each other and at intervals, and the plurality of reflow portions 11 are disposed on the two guide platforms 13 respectively and are arranged alternately.

[0089] In the present invention, the plurality of reflux portions 11 are respectively arranged on the two guide platforms 13 and are staggered, which can avoid the reflux formed in the two relatively arranged reflux portions 11 from colliding with each other and wasting the reflux energy itself, and the plurality of reflux portions 11 can cooperate with each other.

[0090] Preferably, the two guide platforms 13 are symmetrically arranged along the center line of the main water channel 10 .

[0091] Specifically, a protruding guide platform 13 is provided on one side of the vertical plate, and the two guide platforms 13 are symmetrically arranged along the center line of the main water channel 10. When the water flows upward, the water flows into the water inlet of the main water channel 10 and then enters between the two guide platforms 13. When the water flows downward, the water flows back between the two guide platforms 13. There are multiple third curved sections on the guide platform 13, and the multiple third curved sections are vertically spaced to form the reflux portion 11. The third curved section has the opening. The other end of the guide rib 12 extends to the main water channel 10 outside the guide platform 13, so that when the water flows back, the guide rib 12 can guide the water to smoothly enter the water storage chamber 111.

[0092] The plurality of third curved sections respectively arranged on the two guide platforms 13 are arranged opposite to each other and the heights of the plurality of third curved sections are different, so that they are arranged in a staggered manner. Figure 2 As shown, one of the third curved sections is arranged on the left guide platform 13, and the other third curved section is arranged on the right guide platform 13. The two third curved sections are arranged oppositely and staggered. The bottom wall of the third curved section arranged on the left guide platform 13 is higher than the top wall of the third curved section arranged on the right guide platform 13, which can avoid the backflow formed in the two third curved sections arranged oppositely from colliding with each other and wasting the backflow energy. The outlet flow channel of the backflow part 11 located above can guide the water flow to the inlet flow channel of the backflow part 11 located below, which can play a role of mutual cooperation.

[0093] The main water channel 10 is provided with a water inlet and a plurality of water outlets. The water inlet is arranged at one end of the main water channel 10 ; and one of the water outlets is arranged at the other end of the main water channel 10 .

[0094] Two relatively spaced guide platforms 13 form a group. Multiple groups of guide platforms 13 are spaced apart in the main waterway 10 along the water flow direction. A water outlet is provided between two adjacent groups of guide platforms 13. Adjacent return parts 11 on two adjacent groups of guide platforms 13 are staggered.

[0095] Specifically, Figure 1 and Figure 2As shown, the water inlet is located at the lower end of the main water channel 10, that is, it is openly arranged at the lower end of the box body. The main water channel 10 has a plurality of water outlets extending laterally, and a plurality of groups of guide platforms 13 are arranged on the main water channel 10 at intervals along the flow direction of the water flow. One of them is located at the upper end of the main water channel 10, and the water outlet is arranged between two adjacent groups of guide platforms 13. The water outlets at different heights can form waterfall water flows of different heights, which can be applied to different water levels. In combination with the corresponding reflux parts 11, when the water flow falls back, the water flow can be slowed down and the duration of multiple waterfall water flows can be extended. The adjacent reflux parts 11 on the two adjacent groups of guide platforms 13 are staggered, so that the two groups of guide platforms 13 can cooperate with each other, and the outlet flow channel of the reflux part 11 located above can guide the water flow to the inlet flow channel of the reflux part 11 located below. Preferably, there are two water outlets.

[0096] A first water guiding section 131 is disposed at the upper end of the guide platform 13 . The first water guiding section 131 extends obliquely downward toward the opening of the water storage chamber 111 .

[0097] Specifically, the guide platform 13 is located below the corresponding water outlet, and is provided with the first water guide section 131. The first water guide section 131 is arranged to extend downward at an angle, and the extension line of the first water guide section 131 passes through the inlet flow channel of the water storage chamber 111, so as to facilitate guiding the water flow near the water outlet into the water storage chamber 111, increase the flow rate of water entering the water storage chamber 111, facilitate rapid formation of reflux, and extend the duration of reflux.

[0098] Preferably, a second water guiding section 132 which is inclined is provided at the lower end of the guide platform 13, and the distance between two second water guiding sections 132 decreases from bottom to top.

[0099] Specifically, the distance between the two second water guiding sections 132 decreases from bottom to top, and when water flows upward, the water flow from the water inlet into the space between the two second water guiding sections 132 can be accelerated.

[0100] The present invention further provides a washing machine having any of the above-mentioned waterfall waterway structures, wherein the washing machine comprises a washing tub 2 , and the waterway structure body 1 is vertically arranged on the inner peripheral wall of the washing tub 2 .

[0101] Preferably, there are multiple water channel structure bodies 1, and the multiple water channel structure bodies 1 are circumferentially spaced apart and arranged on the inner circumferential wall of the washing tub 2.

[0102] like Figure 3 and Figure 4As shown, the water channel structure body 1 is vertically installed on the inner peripheral wall of the washing tub 2, and a gap is set between the lower end of the water channel structure body 1 and the bottom wall of the washing tub 2, and the water channel structure body 1 is detachably arranged in the washing tub 2. Specifically, the side of the box body opposite to the vertical plate is connected to the washing tub 2.

[0103] A plurality of the water channel structure bodies 1 are circumferentially spaced apart on the inner circumferential wall of the washing tub 2; a plurality of vertically extending lint filters are also provided on the inner circumferential wall of the washing tub 2, and a plurality of the water channel structure bodies 1 and a plurality of lint filters are circumferentially spaced apart on the inner circumferential wall of the washing tub 2.

[0104] The lower ends of the plurality of water channel structure bodies 1 and the lower ends of the plurality of lint filters are arranged at the same height.

[0105] The pulsator is connected with a driving mechanism, which is disposed below the washing tub 2 and connected to the pulsator, and can switch the pulsator between forward and reverse rotations to drive the water flow.

[0106] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A waterfall waterway structure, characterized in that: include, The water channel structure body (1) has a certain extension length; A main water channel (10) is arranged in the water channel structure body (1), extending from one end to the other end in the length extension direction of the water channel structure body (1), and is used for water intake; The reflux portion (11) is recessed and arranged on the inner wall of the main water channel (10), is connected to the main water channel (10), and is used to prevent water from flowing back toward one end of the water channel structure body (1) after entering the water channel.

2. The waterfall waterway structure according to claim 1, characterized in that: The reflux portion (11) has an opening; The inner wall of the reflux portion (11) close to one end of the water channel structure body (1) extends outwardly and obliquely toward the other end of the water channel structure body (1) to the opening, and is used to guide water entering the reflux portion (11) to flow toward the other end of the water channel structure body (1).

3. The waterfall waterway structure according to claim 2, characterized in that: The reflux portion (11) is recessed inwardly on the inner wall of the main water channel (10) and is recessed toward one end of the water channel structure body (1) to form a water storage cavity (111) having the opening; The bottom wall of the water storage chamber (111) is arranged in an arc-shaped depression, and the bottom wall is arranged to extend outwardly and obliquely from one end of the bottom wall close to the opening toward the other end of the water channel structure body (1) and protrude from the inner wall of the main water channel (10) at the outer periphery of the opening.

4. The waterfall waterway structure according to claim 3, characterized in that: A guide rib (12) is provided in the water storage cavity (111), one end of the guide rib (12) is arranged in the water storage cavity (111), and the other end extends outward and penetrates the opening; One side of the guide rib (12) and the top wall of the water storage chamber (111) form an inlet flow channel, and the other side of the guide rib (12) and the bottom wall of the water storage chamber (111) form an outlet flow channel, which is connected to the inlet flow channel and is used to guide the incoming water flow to flow toward the other end of the main water channel (10) to form a backflow.

5. The waterfall waterway structure according to claim 4, characterized in that: The guide rib (12) is plate-shaped and is disposed transversely and obliquely in the water storage cavity (111); a certain gap is provided between one end of the guide rib (12) and the inner wall of the water storage cavity (111); and the other end of the guide rib (12) extends outwardly into the main water channel (10) outside the water storage cavity (111).

6. The waterfall waterway structure according to any one of claims 1 to 5, characterized in that: One side wall of the water channel structure body (1) in the length extension direction is open and communicates with the main water channel (10); The reflux portions (11) are respectively arranged on two opposite inner side walls of the main water channel (10), and the two inner side walls are adjacent to the opening.

7. The waterfall waterway structure according to claim 6, characterized in that: The plurality of reflux portions (11) are respectively arranged on two opposite inner walls of the main water channel (10) and are staggered in the direction of water flow.

8. The waterfall waterway structure according to claim 6, characterized in that: The two inner walls of the main water channel (10) adjacent to the opening are respectively provided with guide platforms (13) extending along the water flow direction; The two flow guide platforms (13) are arranged opposite to each other and at intervals, and the plurality of return flow portions (11) are respectively arranged on the two flow guide platforms (13) and are arranged in a staggered manner.

9. The waterfall waterway structure according to claim 7 or 8, characterized in that: The main water channel (10) is provided with a water inlet and a plurality of water outlets, wherein the water inlet is arranged at one end of the main water channel (10); and one of the water outlets is arranged at the other end of the main water channel (10); Two relatively spaced guide platforms (13) form a group; a plurality of groups of guide platforms (13) are spaced apart in the main waterway (10) along the direction of water flow; a water outlet is provided between two adjacent groups of guide platforms (13); and adjacent return flow portions (11) on two adjacent groups of guide platforms (13) are staggered.

10. A washing machine having a waterfall waterway structure according to any one of claims 1 to 9, characterized in that: It comprises a washing tub (2), wherein the water channel structure body (1) is vertically arranged on the inner peripheral wall of the washing tub (2); Preferably, there are a plurality of water channel structure bodies (1), and the plurality of water channel structure bodies (1) are arranged on the inner circumferential wall of the washing tub (2) at circumferential intervals.

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