A washing tub with a water flow channel, a washing machine and a draining method thereof

Abstract

The application provides a washing tub with a water flow channel, a washing machine and a drainage method. The washing tub is provided with a drainage hole, and the rest of the positions are free of holes. The drainage hole is communicated with a water channel groove. The water channel groove is formed on the outer wall of the washing tub. A cover plate is arranged on the water channel groove. The water channel groove and the cover plate form a drainage cavity. A water throwing hole is formed at the end of the drainage cavity. The drainage hole, the water channel groove, the cover plate and the water throwing hole form a water flow pipeline. The included angle between the two ends of the water flow pipeline and the central axis of the washing tub is α. The included angle between the two ends of the washing water surface in the washing tub and the central axis of the washing tub during washing of the washing machine is β. α >= beta. The washing tub with the water flow channel solves the secondary pollution of the washing water flowing between the inner tub and the outer tub to the washed clothes, and solves the defects of washing water leakage and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drum washing machines, in particular to a washing tub with a flowing water channel, a washing machine and a draining method thereof. BACKGROUND

[0002] At present, the drum washing machine has a perforated inner tub structure, and the inner tub and the outer tub are communicated. The existing problems are as follows: 1. The water between the outer tub and the inner tub does not participate in washing, which is wasted water; 2. Over time, serious dirt and mold are generated, which causes secondary pollution to clothes. The dirt in the outer tub enters the inner tub, causing secondary pollution to clothes. If the inner tub is made into a non-perforated tub, the water in the inner tub can be maintained during the washing state without loss, and the ideal effect can be achieved during the draining and dewatering, which is a technical problem that needs to be overcome in the current water-saving and environment-friendly technology of drum washing machines.

[0003] The existing cleaning methods for the inner tub and the outer tub of the drum washing machine are as follows: 1. The inner tub is flushed by water flow to reduce the attached dirt; 2. The washing machine is regularly cleaned by using a tank to clean the detergent, so as to remove the dirt; 3. The washing tub is made into a detachable structure, and the washing tub is taken out for cleaning. However, the above-mentioned water flow flushing method is not clean and complete; the chemical cleaning method is time-consuming and labor-intensive; and the detachable washing tub method has a relatively complex structure and poor user experience.

[0004] The patent application with publication number CN 107447425A discloses a drum washing machine and a cleaning method thereof. An annular isolation channel is arranged between the outer tub and the inner tub. The isolation channel can be arranged on the outer tub to rotate relative to the inner tub, or arranged on the inner tub to rotate relative to the outer tub. The isolation channel is communicated with the perforated area of the inner tub, so as to completely isolate the space between the outer tub and the inner tub from the inside of the inner tub, and then the sewage does not flow between the inner tub and the outer tub, and the dirt does not adhere and accumulate in the area between the outer tub and the inner tub. However, in the actual application of the technical solution of the patent application, the sealing performance of the connection part of the isolation channel is very poor when the isolation channel rotates between the inner tub and the outer tub. The washing water still exists between the inner tub and the outer tub. Moreover, when the washing tub rotates at a high speed, the washing tub often shakes and rotates. During the shaking process, the connection between the isolation channel and the inner tub and the outer tub is deformed or displaced, which affects the isolation effect of the isolation channel, cannot isolate the washing water between the inner tub and the outer tub, and has poor effect of avoiding secondary pollution. SUMMARY

[0005] Therefore, the present application aims to provide a washing tub with a flowing water channel, a washing machine and a draining method thereof, so as to solve the problems of secondary pollution caused by the drum washing machine in the prior art.

[0006] To achieve the above object, the technical scheme of the present application is as follows: a washing tub with a water flow channel, a drain hole is arranged on the washing tub, and the rest positions are without holes, the drain hole is communicated with a water channel groove, the water channel groove is formed on the outer wall of the washing tub, a cover plate is arranged on the water channel groove, the water channel groove and the cover plate form a drain cavity, a water throwing hole is formed at the end of the drain cavity, the drain hole, the water channel groove, the cover plate and the water throwing hole form a water flow pipeline, the included angle between the two ends of the water flow pipeline and the central axis of the washing tub in the circular projection with the central axis of the washing tub as the center is α, the included angle between the two ends of the washing water surface in the washing tub and the central axis of the washing tub in the circular projection of the washing tub during washing of the washing machine is β, and α≥β.

[0007] Further, the washing tub comprises a washing tub front plate, a washing tub circumference, and a washing tub back plate, a circumferential water channel groove is arranged on the washing tub circumference, the circumferential water channel groove is pressed inward or outward on the washing tub circumference, and / or a front plate water channel groove is arranged on the washing tub front plate, the front plate water channel groove is pressed inwardly concave or outwardly convex on the washing tub front plate, and / or a back plate water channel groove is arranged on the washing tub back plate, the back plate water channel groove is pressed inwardly concave or outwardly convex on the washing tub back plate.

[0008] Further, a circumferential drain hole is arranged on the washing tub circumference, the circumferential drain hole is communicated with the circumferential water channel groove, a circumferential cover plate is arranged on the circumferential water channel groove, the circumferential cover plate and the circumferential water channel groove form a circumferential drain cavity, a circumferential water throwing hole is formed at the other end of the circumferential drain cavity, and the circumferential drain hole, the circumferential water channel groove, the circumferential cover plate and the circumferential water throwing hole form a tub water flow pipeline.

[0009] Further, the included angle between the two ends of the circumferential water channel groove and the center of the washing tub is 90 degrees to 360 degrees.

[0010] Further, a plurality of tub water flow pipelines are arranged on the circumference with the central axis of the washing tub as the center, and the plurality of tub water flow pipelines arranged on the same circumference form a set of water flow pipeline devices.

[0011] Further, the tub water flow pipeline is gradually contracted from the circumferential drain hole to the circumferential water throwing hole.

[0012] Further, a front plate drain hole is arranged on the front plate, the front plate water channel groove is communicated with the front plate drain hole, a front plate cover plate is arranged on the front plate water channel groove, the front plate water channel groove and the front plate cover plate form a front plate drain cavity, a front plate throwing water hole is formed at the other end of the front plate drain cavity, the front plate drain hole, the front plate water channel groove, the front plate cover plate and the front plate throwing water hole form a front plate water flowing pipeline, and / or a rear plate drain hole is arranged on the rear plate, the rear plate water channel groove is communicated with the rear plate drain hole, a rear plate cover plate is arranged on the rear plate water channel groove, the rear plate water channel groove and the rear plate cover plate form a rear plate drain cavity, a rear plate throwing water hole is formed at the other end of the rear plate drain cavity, and the rear plate drain hole, the rear plate water channel groove, the rear plate cover plate and the rear plate throwing water hole form a rear plate water flowing pipeline.

[0013] Compared with the prior art, the washing drum with the water flowing channel has the following advantages:

[0014] (1) The washing drum with the water flowing channel has the water flowing pipeline arranged, so that the secondary pollution of the washing water flowing between the inner drum and the outer drum to the clothes being washed is solved, and the defects of the washing water leakage caused by the poor sealing of the water flowing pipeline, the shaking during the drainage and other factors in the prior art are solved.

[0015] (2) The structure is simple and reliable.

[0016] Another object of the present application is to provide a washing machine comprising the washing drum with the water flowing channel.

[0017] An outer drum is arranged outside the washing drum, the throwing water structure of the water flowing pipeline is arranged between the washing drum and the outer drum, the outer drum is provided with a drain port at the bottom, and a drain pipe is connected to the drain port.

[0018] The application also discloses a draining method of a washing machine. The drum washing machine comprises a washing tub, a water flowing pipeline arranged on the washing tub, one end of the water flowing pipeline communicated with the washing tub, a flow hole arranged at the communicated position of the washing tub and the water flowing pipeline, no hole arranged at other positions, the other end of the water flowing pipeline formed outside the washing tub, the projection of the water flowing pipeline on a circle with the center axis of the washing tub as the center being arc-shaped or circular, the included angle of the two ends of the water flowing pipeline and the center axis of the washing tub on the circular projection of the washing tub being α, the included angle of the two ends of the washing water surface in the washing tub and the center axis of the washing tub on the circular projection of the washing tub being β, α≧β, the washing machine rotating unidirectionally in the washing condition, the draining condition and the dewatering condition, the clockwise direction of the water flowing pipeline from the communicated position of the washing tub to the end of the water flowing pipeline being the same as the clockwise direction of the washing tub in the washing condition, the clockwise direction of the washing tub in the washing condition being opposite to the clockwise direction of the washing tub in the draining condition, the clockwise direction of the washing tub in the draining condition being the same as the clockwise direction of the washing tub in the dewatering condition.

[0019] The application also discloses another draining method of a washing machine. The drum washing machine comprises a washing tub provided with a valve and a water flowing pipeline, and a washing machine comprising the same. The drum washing machine comprises a washing tub, a water flowing pipeline arranged on the washing tub, one end of the water flowing pipeline communicated with the washing tub, a flow hole arranged at the communicated position of the washing tub and the water flowing pipeline, no hole arranged at other positions, the other end of the water flowing pipeline formed outside the washing tub, the projection of the water flowing pipeline on a circle with the center axis of the washing tub as the center being arc-shaped or circular, the included angle of the two ends of the water flowing pipeline and the center axis of the washing tub on the circular projection of the washing tub being α, the included angle of the two ends of the washing water surface in the washing tub and the center axis of the washing tub on the circular projection of the washing tub being β, α≧β, the washing machine rotating unidirectionally in the washing condition, the draining condition and the dewatering condition; when the washing machine rotates unidirectionally in the washing condition, the clockwise direction of the water flowing pipeline from the communicated position of the washing tub to the end of the water flowing pipeline being the same as the clockwise direction of the washing tub in the washing condition, the clockwise direction of the washing tub in the washing condition being opposite to the clockwise direction of the washing tub in the draining condition, the clockwise direction of the washing tub in the draining condition being the same as the clockwise direction of the washing tub in the dewatering condition; when the washing machine rotates bidirectionally in the washing condition, the clockwise direction of the water flowing pipeline from the communicated position of the washing tub to the end of the water flowing pipeline being opposite to the clockwise direction of the washing tub in the draining condition and the dewatering condition.

[0020] The application discloses a washing machine with a washing tub with a water flow channel and a water draining method. BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification. The illustrations are given to explain the application and are not intended to limit the application in any way. In the drawings:

[0022] Figure 1 A structure schematic view of the washing tub with the water flow channel according to the embodiment of the application;

[0023] Figure 2 An A state structure schematic view of the washing tub with the water flow channel according to the embodiment of the application in a one-way rotation state in a water draining and dehydration state;

[0024] Figure 3 A B state structure schematic view of the washing tub with the water flow channel according to the embodiment of the application in a one-way rotation state in a water draining and dehydration state;

[0025] Figure 4 A C state structure schematic view of the washing tub with the water flow channel according to the embodiment of the application in a one-way rotation state in a water draining and dehydration state;

[0026] Figure 5 A D state structure schematic view of the washing tub with the water flow channel according to the embodiment of the application in a one-way rotation state in a water draining and dehydration state;

[0027] Figure 6 An E state structure schematic view of the washing tub with the water flow channel according to the embodiment of the application in a one-way rotation state in a washing state;

[0028] Figure 7 An F state structure schematic view of the washing tub with the water flow channel according to the embodiment of the application in a one-way rotation state in a washing state;

[0029] Figure 8 A G state structure schematic view of the washing tub with the water flow channel according to the embodiment of the application in a one-way rotation state in a washing state;

[0030] Figure 9 An H state structure schematic view of the washing tub with the water flow channel according to the embodiment of the application in a one-way rotation state in a washing state;

[0031] Figure 10 The I state structure diagram of the washing tub with water flow channel under the second drainage and dehydration state and one-way rotation for the embodiment of the present application;

[0032] Figure 11 The J state structure diagram of the washing tub with water flow channel under the second drainage and dehydration state and one-way rotation for the embodiment of the present application;

[0033] Figure 12 The K state structure diagram of the washing tub with water flow channel under the second drainage and dehydration state and one-way rotation for the embodiment of the present application;

[0034] Figure 13 The L state structure diagram of the washing tub with water flow channel under the second drainage and dehydration state and one-way rotation for the embodiment of the present application;

[0035] Figure 14 The M state structure diagram of the washing tub with water flow channel under the second washing state and one-way rotation for the embodiment of the present application;

[0036] Figure 15 The N state structure diagram of the washing tub with water flow channel under the second washing state and one-way rotation for the embodiment of the present application;

[0037] Figure 16 The O state structure diagram of the washing tub with water flow channel under the second washing state and one-way rotation for the embodiment of the present application;

[0038] Figure 17 The P state structure diagram of the washing tub with water flow channel under the second washing state and one-way rotation for the embodiment of the present application;

[0039] Figure 18 The working principle structure definition diagram of the drum washing machine drainage method for the embodiment of the present application;

[0040] Figure 19 The front view structure diagram of the water channel groove of the washing tub with water flow channel for the embodiment of the present application;

[0041] Figure 20 The left view structure diagram of the water channel groove of the washing tub with water flow channel for the embodiment of the present application;

[0042] Figure 21 The right view structure diagram of the water channel groove of the washing tub with water flow channel for the embodiment of the present application;

[0043] Figure 22Side view of the water channel of the washing tub with water flow channel according to the embodiment of the present application;

[0044] Figure 23 Front view of the water channel of the washing tub with water flow channel according to the embodiment of the present application;

[0045] Figure 24 Left view of the water channel of the washing tub with water flow channel according to the embodiment of the present application;

[0046] Figure 25 Right view of the water channel of the washing tub with water flow channel according to the embodiment of the present application;

[0047] Figure 26 Side view of the water channel of the washing tub with water flow channel according to the embodiment of the present application;

[0048] Figure 27 Side view of the washing tub with water flow channel according to the embodiment of the present application;

[0049] Figure 28 Side view of the circumferential water channel of the washing tub according to the embodiment of the present application;

[0050] Figure 29 Side view of the circumferential top plate of the washing tub according to the embodiment of the present application;

[0051] Figure 30 Side view of the end water channel of the washing tub according to the embodiment of the present application;

[0052] Figure 31 Right view of the end water channel of the washing tub according to the embodiment of the present application;

[0053] Figure 32 Structure diagram of the spiral water channel of the washing tub according to the embodiment of the present application;

[0054] Figure 33 Structure diagram of the second spiral water channel of the washing tub according to the embodiment of the present application;

[0055] Figure 34 Structure diagram of the third spiral water channel of the washing tub according to the embodiment of the present application;

[0056] Figure 35 Structure diagram of the washing machine containing the washing tub with water flow channel according to the embodiment of the present application;

[0057] Figure 36 Structure diagram of the water channel communicated with the water-repellent rib according to the embodiment of the present application;

[0058] Figure 37 This is a schematic diagram of the second structure of the water flow channel connected to the water-dispelling ribs according to an embodiment of the present invention;

[0059] Figure 38 This is a schematic diagram of the third structure of the water flow channel connected to the water-dispelling ribs according to an embodiment of the present invention;

[0060] Figure 39 This is a schematic diagram of another embodiment of the washing tub of the present invention;

[0061] Figure 40 This is a cross-sectional view of the washing tub of the present invention;

[0062] Figure 41 The elastic valve of the water flow channel of the present invention is installed in the side view of the washing tub wall structure;

[0063] Figure 42 For the present invention Figure 41 A magnified view of part A in the middle;

[0064] Figure 43 A side view of the structure of the water flow channel of the present invention, in which the elastic valve is installed in the water guide groove at the end of the washing tub;

[0065] Figure 44 for Figure 43 Another side view of the end water guide channel in the middle;

[0066] Figure 45 The one-way valve of the water flow channel of the present invention is installed in the side view of the washing tub wall structure;

[0067] Figure 46 This is a schematic diagram of the structure of the present invention, in which the water flow channel is located on the front panel of the washing tub;

[0068] Figure 47 The one-way valve of the water flow channel of the present invention is installed in the side view of the front panel structure of the washing tub;

[0069] Figure 48 For the present invention Figure 47 Side view of the structure on the other side of the front panel of the washing tub;

[0070] Figure 49 This is a schematic diagram of a tilted, holeless washing tub washing machine according to an embodiment of the present invention;

[0071] Figure 50 This is a cross-sectional view of the self-cleaning washing tub with a washing tub door according to an embodiment of the present invention;

[0072] Figure 51 for Figure 50 Front view;

[0073] Figure 52 Figure 2 is a left view of the door sealing assembly of the wash tub with a wash tub door according to an embodiment of the present application;

[0074] Figure 53 Figure 3 is a diagram of the wash tub door opening state of the wash tub with a wash tub door according to an embodiment of the present application;

[0075] Figure 54 Figure 4 is a diagram of the positioning pin and the positioning hole cooperating state of the wash tub with a wash tub door according to an embodiment of the present application;

[0076] Figure 55 Figure 5 is a diagram of the wash tub door closing state of the wash tub with a wash tub door according to an embodiment of the present application;

[0077] BRIEF DESCRIPTION OF DRAWINGS

[0078] 1. wash tub, 2. wash water surface, 3. water flow channel, 4. drainage structure, 5. water throwing structure, 6. wash tub front plate, 6-3. front plate water channel groove, 6-4. front plate drainage hole, 6-5. front plate water throwing hole, 6-6. front plate cover plate, 7. wash tub circumference, 7-3. circumference water channel groove, 7-4. circumference drainage hole, 7-5. circumference water throwing hole, 7-6. circumference cover plate, 8. wash tub back plate, 8-3. back plate water channel groove, 8-4. back plate drainage hole, 8-5. back plate water throwing hole, 8-6. back plate cover plate, 9. flange, 10. tub cover, 11. water inlet, 12. water throwing rib, 1201. first chamber, 1202. drainage water receiving surface, 12-4. water throwing rib drainage hole, 13. circumference water guide groove, 14. first water guide structure, 1401. first water guide part, 1402. second water guide part, 1403. third water guide part, 15. circumference top plate, 16. end water guide groove, 1601. first limiting wall, 1602. second limiting wall, 17. second water guide structure, 1701. fourth water guide part, 1702. fifth water guide part, 1703. sixth water guide part, 18. spiral water flow channel, 18-3. spiral water guide pipe, 18-4. water guide pipe drainage opening, 18-5. water guide pipe water throwing opening, 19. water inlet valve, 20. outer tub, 21. box body, 22. water spraying hose, 23. water spraying nozzle, 24. door cover, 25. drainage opening, 26. drainage pipe, 28. water inlet, 29. wash box, 30. water inlet hose, 31. return spring, 32. metal ball, 33. door seal, 34. rotating pin, 35. elastic valve, 36. one-way valve, 37. fixed ring, 3701. positioning hole, 38. hinge, 39. wash tub door, 3901. positioning pin, 3902. elastic part, 40. handle, 41. locking spring, 42. magnet, 43. hook, 44. hook groove, 45. door seal, 46. position sensor. DETAILED DESCRIPTION

[0079] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0080] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, technical solutions or features between various embodiments can be combined, but only if they are feasible to those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, such a combination should be considered nonexistent and not within the scope of protection claimed by this invention.

[0081] Furthermore, all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0082] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0083] Example 1

[0084] like Figures 1-9 As shown, this embodiment discloses a washing tub with a water flow channel that allows for unidirectional rotation. A water flow channel 3 is provided on the washing tub 1, and a drainage structure 4 is provided on the washing tub 1. One end of the water flow channel 3 is connected to the drainage structure 4, and the drainage structure 4 is used to direct the water inside the washing tub 1 to the water flow channel 3. The other end of the water flow channel 3 is connected to a water-throwing structure 5, which is located outside the washing tub 1 and is used to direct the washing water in the water flow channel 3 to the outside of the washing tub 1.

[0085] Preferably, the two ends of the water flow channel 3 are on a circle with the central axis of the washing tub as the center, and the water flow channel 3 is arranged in an arc shape.

[0086] Specifically, the angle formed by the two ends of the water channel 3 and the central axis of the washing tub on the circular projection centered on the central axis of the washing tub 1 is α, and the angle formed by the two ends of the washing water surface 2 in the washing tub 1 and the central axis of the washing tub on the circular projection of the washing tub 1 during washing is β, where α≧β.

[0087] Furthermore, the washing tub 1 includes a front panel 6, a circumference 7, and a rear panel 8, and the water flow channel 3 is disposed on any one or more of the front panel 6, the circumference 7, and the rear panel 8.

[0088] Preferably, the arc length of the water flow channel 3 is greater than the arc length formed by the contact between the washing water surface 2 and the washing tub.

[0089] Specifically, the angle α between the two ends of the circular arc of the water flow channel 3 and the center of the washing tub 1 is in the range of 90 degrees to 360 degrees, preferably in the range of 100 degrees to 180 degrees.

[0090] Further, the water flow channel 3, the water draining structure 4, and the water throwing structure 5 form a water flow pipeline on the washing tub 1. A plurality of water flow pipelines, preferably 2 to 4, can be arranged on the front plate 6 and the rear plate 8 of the washing tub. A plurality of groups of water flow pipeline devices, preferably 2 to 5, are arranged on the circumference 7 of the washing tub. Each group of water flow pipeline devices is provided with a plurality of water flow pipelines, preferably 2 to 4.

[0091] Preferably, the water flow channel 3 is flat or tubular.

[0092] Further, the water flow pipeline is arranged in a gradually shrinking manner from the water draining structure 4 to the water throwing structure 5. This arrangement avoids the washing water adhering to the water flow channel 3 under the action of centrifugal force when the washing tub rotates at high speed during the dehydration process, thereby affecting the dehydration effect.

[0093] The features and structures in the embodiments of the present application can be combined with the structures and features of other embodiments, but must be based on the realization of a person of ordinary skill in the art. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0094] The present embodiment discloses a washing tub with a water flow channel for one-way rotation. A water flow pipeline is arranged on the washing tub, one end of the water flow pipeline is connected to the inside of the washing tub, and the other end of the water flow pipeline is arranged outside the washing tub. Thus, the washing tub can complete the washing, draining, and dehydration processes through continuous one-way rotation. The rotation direction of the washing tub during the washing process is opposite to that during the draining and dehydration processes.

[0095] Embodiment 2

[0096] The present embodiment discloses a drum washing machine and a draining method. As shown in Figure 18As shown, the drum washing machine includes a washing tub 1, on which a water flow channel 3 is provided. One end of the water flow channel 3 is connected to the washing tub 1, and a flow hole is provided at the connection between the washing tub and the water flow channel 3. The other position is without holes. The other end of the water flow channel 1 is formed outside the washing tub. The projection of the water flow channel 3 onto a circle centered on the central axis of the washing tub is arc-shaped or circular. The angle α formed by the two ends of the water flow channel 3 and the central axis of the washing tub on the circular projection of the washing tub 1 is α. During washing, the washing machine washes the water in the washing tub 1. The angle formed by the two ends of the water surface 2 and the central axis of the washing tub on the circular projection of the washing tub 1 is β, α≧β. The washing machine rotates in one direction during washing, draining and spin-drying. The clockwise direction formed from the connection point of the water flow channel 3 and the end of the water flow channel 3 is the same as the clockwise direction of the washing tub during washing. The direction of rotation of the washing tub during washing is opposite to the direction of rotation during draining, and the direction of rotation of the washing tub during draining is the same as the direction of rotation during spin-drying.

[0097] To more clearly explain the working principle of the washing machine described in this invention, the following definitions are made: In the embodiments, clockwise and counterclockwise refer to the clockwise direction formed when looking from one end of the water inlet of the washing tub towards the end of the clutch connection of the washing tub. The rotation direction of the washing machine during washing is defined as R clockwise, and the rotation direction of the washing machine during drainage or spin-drying is defined as S clockwise. The direction formed from one end of the water flow channel 3 connected to the washing tub to the other end of the water flow channel 3 is defined as T clockwise. That is, the clockwise direction of T is the same as the clockwise direction of R, and the clockwise direction of R is opposite to the clockwise direction of S.

[0098] In conjunction with Example 1, such as Figure 35 As shown, an outer tub 20 is provided on the outside of the washing tub 1. The water-throwing structure 5 of the water flow channel 3 is provided between the washing tub 1 and the outer tub 20. The bottom of the outer tub 20 is provided with a drain outlet 25, and a drain pipe 26 is connected to the drain outlet 25.

[0099] In a front-loading washing machine, the spin speed of the washing tub is generally below 50 rpm under the action of washing water and clothes. The water level in the tub is generally horizontal or nearly horizontal. Figures 2-9 As shown, the drainage structure 4, water channel 3 and water throwing structure 5 of the water pipe are arranged counterclockwise on the washing tub, that is, T clockwise is counterclockwise.

[0100] When the washing tub 1 rotates clockwise:

[0101] like Figure 2 As shown, at this time, both the drainage structure 4 and the water-throwing structure 5 are above the washing water surface 2, and there is no washing water in the water flow channel 3.

[0102] With the clockwise rotation of the washing tub 1, it reaches the position as shown in Figure 3 At this time, the draining structure 4 is lower than the washing water surface 2, the throwing structure 5 is higher than the washing water surface 2, and the washing water in the flowing water channel 3 is injected through the draining structure 4;

[0103] With the clockwise rotation of the washing tub 1, it reaches the position as shown in Figure 4 At this time, the draining structure 4 is higher than the washing water surface 2, the throwing structure 5 is lower than the washing water surface 2, and the washing water in the flowing water channel 3 is drained through the throwing structure 5 to the space between the washing tub 1 and the outer tub 20;

[0104] With the clockwise rotation of the washing tub 1, it reaches the position as shown in Figure 5 At this time, the draining structure 4 is higher than the washing water surface 2, the throwing structure 5 is lower than the washing water surface 2, and the throwing structure 5 is rotated to the lowest position of the washing tub 1, and the washing water in the flowing water channel 3 is drained through the throwing structure 5 to the space between the washing tub 1 and the outer tub 20;

[0105] In this working condition, the washing tub is described through the A, B, C and D states, and each flowing water channel has a process of storing and draining water once per rotation of the washing tub, and the washing water flows to the space between the inner tub and the outer tub during the rotation of the washing tub, thereby forming the draining and dewatering working condition of the washing machine, i.e., the clockwise rotation.

[0106] As shown in Figures 6-9 The draining structure 4, the flowing water channel 3 and the throwing structure 5 of the flowing water channel are arranged counterclockwise on the washing tub, and the washing tub 1 rotates counterclockwise:

[0107] As shown in Figure 6 At this time, the draining structure 4 and the throwing structure 5 are both above the washing water surface 2, and at this time, the flowing water channel 3 is free of washing water;

[0108] With the counterclockwise rotation of the washing tub 1, it reaches the position as shown in Figure 7 At this time, the draining structure 4 is higher than the washing water surface 2, the throwing structure 5 is lower than the washing water surface 2, and the flowing water channel 3 is free of washing water;

[0109] With the counterclockwise rotation of the washing tub 1, it reaches the position as shown in Figure 8 At this time, the draining structure 4 is lower than the washing water surface 2, the throwing structure 5 is higher than the washing water surface 2, and the washing water is injected through the draining structure 4 in the flowing water channel 3;

[0110] With the clockwise rotation of the washing tub 1, it reaches the position as shown in Figure 9As shown in the position, at this time, the drainage structure 4 is higher than the washing water surface 2, the throwing water structure 5 is higher than the washing water surface 2, the height of the throwing water structure 5 is higher than the height of the drainage structure 4, and the washing water in the water flowing channel 3 flows back to the washing barrel 1 through the drainage structure 4 again;

[0111] In this working condition, the washing barrel rotates unidirectionally through the description of E, F, G and H states, and the water in each water flowing pipeline is continuously stored and flows back and will not flow to the inner and outer barrels of the washing barrel, thereby forming the washing working condition of the washing machine, i.e. the R clockwise is counterclockwise.

[0112] When the rotating speed of the washing barrel increases, the rotating speed of the washing barrel is medium or high speed, the rotating speed of the washing barrel is greater than 50 revolutions per minute, and the washing water in the washing barrel is arranged in an inclined horizontal plane under the rotating action of the washing barrel and the water throwing rib.

[0113] The drainage structure 4, the water flowing channel 3 and the throwing water structure 5 of the water flowing pipeline are arranged counterclockwise on the washing barrel 1, and the washing water surface 2 is arranged in an inclined or nearly inclined manner, as shown in the position. Figures 10-17 As shown in the position, the washing barrel is described through I, J, K, L, M, N, O and P states, and the working condition of the washing machine is the same as the horizontal state of the washing water surface. When the rotating direction of the washing barrel 1 is the same as the setting direction of the drainage structure 4, the water flowing channel 3 and the throwing water structure 5 of the water flowing pipeline on the washing barrel, at this time, it is the washing working condition; when the rotating direction of the washing barrel 1 is opposite to the setting direction of the drainage structure 4, the water flowing channel 3 and the throwing water structure 5 of the water flowing pipeline on the washing barrel, at this time, it is the drainage working condition and the dehydration working condition.

[0114] That is, if the drainage structure 4, the water flowing channel 3 and the throwing water structure 5 of the water flowing pipeline are arranged clockwise on the washing barrel, the washing barrel rotates counterclockwise to be the drainage working condition and the dehydration working condition, and the washing barrel rotates clockwise to be the washing working condition.

[0115] If the drainage structure 4, the water flowing channel 3 and the throwing water structure 5 of the water flowing pipeline are arranged counterclockwise on the washing barrel, the washing barrel rotates clockwise to be the drainage working condition and the dehydration working condition, and the washing barrel rotates counterclockwise to be the washing working condition.

[0116] A method of a drum washing machine, comprising the washing barrel with the water flowing channel described above, and the control steps are as follows:

[0117] St1: turn on the washing machine, select the control program, if the washing program or the rinsing program is selected, enter step St2; if the dehydration working condition is selected, enter St5;

[0118] St2: the washing barrel starts to rotate, the rotating direction R of the washing barrel is the same as the setting direction T of the water flowing channel 3, and water is injected into the washing barrel;

[0119] St3: After the water injection is completed, continue to rotate in the direction R of the rotation direction of the washing tub, and start washing;

[0120] St4: After the washing is completed, the washing tub rotates in the direction opposite to the setting direction T of the water flow channel 3, that is, the rotation direction S is opposite to the rotation direction T, and starts to drain water;

[0121] St5: In the dewatering working condition, the washing tub rotates in the direction opposite to the setting direction T of the water flow channel 3, and the washing tub can continue to rotate in the clockwise direction S at a high speed, and the dewatering working condition is completed.

[0122] Preferably, the included angle α formed by the two ends of the water flow channel 3 and the central axis of the washing tub on the circular projection of the washing tub 1 is in the range of 90°-360°, preferably 100°-180°, and α>β.

[0123] In some embodiments of the present application, α can also be in the range of 80°, 120°, 135°, 145°, 150°, 160°, 200°-250°, 280°, or 320°.

[0124] Further, one end of the water flow channel 3 is communicated with the water drainage structure 4, the water drainage structure 4 is used to guide the water flow in the washing tub 1 to the water flow channel 3, the other end of the water flow channel 3 is communicated with the water throwing structure 5, the water throwing structure 5 is arranged outside the washing tub 1, and the water throwing structure 5 is used to guide the washing water in the water flow channel 3 to the outside of the washing tub 1, and other structures are the same as those in Embodiment 1.

[0125] As shown in some embodiments of the present application, Figure 35 As shown in some embodiments of the present application,

[0126] The features and structures in the embodiments of the present application can be combined with the structures and features of other embodiments, but must be based on the realization of a person of ordinary skill in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0127] The present embodiment discloses a washing machine with a washing single-direction rotating washing barrel with a water flow channel and a drainage method. The principle of the single-direction rotating water flow channel completing the washing condition or the dehydration condition and the drainage condition is described in combination with figures, so as to ensure that the washing barrel with the water flow channel does not leak water in the washing condition, and the washing water in the washing barrel is drained in the drainage condition and the dehydration condition, avoiding the back and forth flow of the washing water between the inner barrel and the outer barrel, causing secondary pollution, and also perfectly solving a series of sealing problems caused by the instability of the sliding seal and the shaking of the washing barrel and other factors of the water flow space of the similar isolation channel when the washing barrel rotates.

[0128] Embodiment 3

[0129] As shown in Figures 19-26 The present embodiment discloses a washing barrel with a water flow channel and a single-direction rotating washing barrel. A drainage hole is arranged on the washing barrel 1, the drainage hole is communicated with a water channel groove, the water channel groove is formed on the outer wall of the washing barrel 1, a cover plate is arranged on the water channel groove, the water channel groove and the cover plate form a drainage cavity, a water throwing hole is formed at the end of the drainage cavity, the drainage hole, the water channel groove, the cover plate and the water throwing hole form a water flow pipeline, and other structures are the same as those in embodiment 1 or embodiment 2.

[0130] Specifically, the included angle formed by the two ends of the water flow pipeline and the central axis of the washing barrel on the circular projection with the central axis of the washing barrel 1 as the center is α, the included angle formed by the two ends of the washing water surface 2 in the washing barrel 1 and the central axis of the washing barrel on the circular projection of the washing barrel 1 is β, and α≥β.

[0131] Preferably, the washing barrel 1 comprises a washing barrel front plate 6, a washing barrel circumference 7 and a washing barrel back plate 8, a circumferential water channel groove 7-3 is arranged on the washing barrel circumference 7, the circumferential water channel groove 7-3 is pressed inward or outward on the washing barrel circumference 7, and / or a front plate water channel groove 6-3 is arranged on the washing barrel front plate 6, the front plate water channel groove 6-3 is pressed inwardly concave or outwardly convex on the washing barrel front plate 6, and / or a back plate water channel groove 8-3 is arranged on the washing barrel back plate 8, the back plate water channel groove 8-3 is pressed inwardly concave or outwardly convex on the washing barrel back plate 8.

[0132] Further, a circumferential drainage hole 7-4 is arranged on the circumference 7 of the washing tub, the circumferential drainage hole 7-4 is communicated with the circumferential water channel 7-3, a circumferential cover plate 7-6 is arranged on the circumferential water channel 7-3, the circumferential cover plate 7-6 and the circumferential water channel 7-3 form a circumferential drainage cavity, a circumferential water throwing hole 7-5 is formed at the other end of the circumferential drainage cavity, and the circumferential drainage hole 7-4, the circumferential water channel 7-3, the circumferential cover plate 7-6 and the circumferential water throwing hole 7-5 form a tub water flow pipeline.

[0133] Preferably, the circumferential water channel 7-3 is arranged at an angle of 90 degrees to 360 degrees, preferably 100 degrees to 180 degrees, relative to the center of the washing tub 1.

[0134] Further, a plurality of tub water flow pipelines are arranged on the circumference of the central axis of the washing tub 1 as the center of a circle, the plurality of tub water flow pipelines arranged on the same circumference form a set of water flow pipeline devices, a plurality of sets of water flow pipeline devices are arranged on the washing tub 1, and each set of water flow pipeline devices is preferably arranged 2-4.

[0135] Further, the tub water flow pipeline is arranged in a gradually tapered manner from the circumferential drainage hole 7-4 to the circumferential water throwing hole 7-5. As an example, the front plate drainage cavity covers a plurality of circumferential drainage holes 7-4, which avoids the washing tub rotating at high speed during dehydration, and the washing water adheres to the circumferential cover plate 7-6 under the action of centrifugal force and does not flow out from the circumferential water throwing hole 7-5.

[0136] Preferably, a front plate drainage hole 6-4 is arranged on the front plate 6 of the washing tub, the front plate water channel 6-3 is communicated with the front plate drainage hole 6-4, a front plate cover plate 6-6 is arranged on the front plate water channel 6-3, the front plate water channel 6-3 and the front plate cover plate 6-6 form a front plate drainage cavity, and a front plate water throwing hole 6-5 is formed at the other end of the front plate drainage cavity, and the front plate drainage hole 6-4, the front plate water channel 6-3, the front plate cover plate 6-6 and the front plate water throwing hole 6-5 form a front plate water flow pipeline.

[0137] Further, the front plate water channel 6-3 is arranged in an arc shape on the circumference with the central axis of the washing tub 1 as the center of a circle, and the front plate water channel 6-3 is arranged at an angle of 90 degrees to 360 degrees, preferably 100 degrees to 180 degrees, relative to the center of the front plate 6 of the washing tub.

[0138] Preferably, the front plate drainage hole 6-4 is arranged on the front plate 6 of the washing tub close to the circumference 7 of the washing tub, and a plurality of front plate water flow pipelines are arranged on the front plate 6 of the washing tub. As an example, a plurality of front plate water flow pipelines can be formed on the same circumference with the front plate 6 of the washing tub as the center, or can be formed on different circumferences with the front plate 6 of the washing tub as the center.

[0139] Further, the front plate water flow path is gradually tapered from the front plate drain hole 6-4 to the front plate water outlet hole 6-5. As an example, the front plate water flow path covers a plurality of front plate drain holes 6-4, which avoids the situation that when the washing machine is in the dehydration mode, the washing tub rotates at a high speed, and the washing water adheres to the front plate cover plate 6-6 under the centrifugal force and does not flow out from the front plate water outlet hole 6-5.

[0140] Preferably, the rear plate drain hole 8-4 is arranged on the rear plate 8 of the washing tub, the rear plate water channel 8-3 is communicated with the rear plate drain hole 8-4, the rear plate cover plate 8-6 is arranged on the rear plate water channel 8-3, the rear plate water channel 8-3 and the rear plate cover plate 8-6 form a rear plate water flow path, and the rear plate water flow path forms a rear plate water outlet hole 8-5 at the other end of the rear plate water flow path.

[0141] Further, the rear plate water channel 8-3 is arranged in an arc shape on a circumference with the center of the rear plate 8 of the washing tub as the center, and the included angle between the two ends of the rear plate water channel 8-3 with respect to the center of the rear plate 8 of the washing tub is 90 degrees to 360 degrees, preferably 100 degrees to 180 degrees.

[0142] Preferably, the rear plate drain hole 8-4 is arranged on the rear plate 8 of the washing tub close to the circumference 7 of the washing tub, and a plurality of rear plate water flow paths are arranged on the rear plate 8 of the washing tub. As an example, the plurality of rear plate water flow paths can be arranged on the same circumference with the center of the rear plate 8 of the washing tub as the center, or can be arranged on different circumferences with the center of the rear plate 8 of the washing tub as the center.

[0143] Further, the rear plate water flow path is gradually tapered from the rear plate drain hole 8-4 to the rear plate water outlet hole 8-5. As an example, the rear plate water flow path covers a plurality of rear plate drain holes 8-4, which avoids the situation that when the washing machine is in the dehydration mode, the washing tub rotates at a high speed, and the washing water adheres to the rear plate cover plate 8-6 under the centrifugal force and does not flow out from the rear plate water outlet hole 8-5.

[0144] As an example, the front plate water flow path device, the rear plate water flow path device, or the circumferential water flow path device can be arranged on the washing tub 1. When only the front plate water flow path device and / or the rear plate water flow path device is arranged, the front plate water flow path device must include the front plate water flow path in which the front plate drain hole 6-4 is arranged on the front plate 6 of the washing tub close to the circumference 7 of the washing tub. Similarly, the rear plate water flow path device must include the rear plate water flow path in which the rear plate drain hole 8-4 is arranged on the rear plate 8 of the washing tub close to the circumference 7 of the washing tub, which improves the efficiency and reliability of the washing water flow in the drainage mode and the dehydration mode.

[0145] The features and structures in the embodiments of the present invention can be combined with the structures and features in other embodiments, but only if they are feasible to those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0146] This embodiment discloses a water flow channel arrangement and structure for a unidirectional rotating washing tub with a water flow channel. The entire washing tub has no holes other than the drain hole. Each front plate water channel 6-3, circumferential water channel 7-3, and rear plate water channel 8-3 is connected to one, two, or more symmetrical drain holes. A cover plate is provided on each water channel, forming a trough shape with the washing tub water channel, creating a water flow pipeline that leads only through the drain hole on the washing tub 1 to the splash hole outside the washing tub. This arrangement ensures that each water channel is a ring or partial ring relative to the central axis of the washing tub, with each segment starting from the drain hole and ending at the splash hole. The relative positions of the drain hole and splash hole in each water flow pipeline are in the same direction, i.e., either clockwise or counterclockwise.

[0147] The working principle of the washing machine including the washing tub is the same as that described in Example 2, and will not be repeated here.

[0148] Example 4

[0149] like Figures 27-31 As shown in the figure, this embodiment discloses another type of washing tub with a water flow channel that allows for unidirectional rotation. The washing tub 1 includes a front plate 6, a circumference 7, and a rear plate 8. A circumferential drain hole 7-4 is provided on the circumference 7. A circumferential water guide groove 13 is provided on the outer surface of the circumference 7. A first water guiding structure 14 is provided on the circumferential water guide groove 13, and the first water guiding structure 14 is connected to the circumferential drain hole 7-4. A circumferential top plate 15 is provided on the side of the circumferential water guide groove 13 away from the outer surface of the circumference 7. The circumferential top plate 15 and the circumferential water guide groove 13 connect the first water guiding structure 14. A circumferential drainage cavity is formed, and a circumferential water-throwing hole 7-5 is provided on the circumferential top plate 15. The circumferential water-throwing hole 7-5 is connected to the first water-guiding structure 14. The circumferential drainage hole 7-4, the circumferential water-guiding groove 13, the first water-guiding structure 14, the circumferential top plate 15, and the circumferential water-throwing hole 7-5 form a water flow pipeline for the tub. Other structures are the same as in other embodiments. This arrangement discloses another type of water flow pipeline for the tub, ensuring the diversity and reliability of the washing water flow during drainage and spin-drying operations.

[0150] Specifically, the angle formed by the two ends of the tub water flow pipeline and the central axis of the washing tub on the circular projection with the central axis of the washing tub 1 is α, and the angle formed by the two ends of the washing water surface 2 in the washing tub 1 and the central axis of the washing tub on the circular projection of the washing tub 1 is β, α≥β.

[0151] Preferably, the circumferential water guide groove 13 is circumferentially arranged and sleeved on the outer surface of the washing tub circumferential surface 7, and the circumferential top plate 15 is also circumferentially arranged and sleeved on the outer surface of the circumferential water guide groove 13. This arrangement facilitates the assembly of the tub water flow pipeline and improves the sealing performance of the tub water flow pipeline.

[0152] Further, the two ends of the first water guide structure 14 are respectively communicated with the circumferential drainage hole 7-4 and the circumferential water throwing hole 7-5, and the angle formed by the two ends of the first water guide structure 14 and the central axis of the washing tub circumferential surface 7 is 90 degrees to 360 degrees, preferably 100 degrees to 180 degrees.

[0153] Preferably, the first water guide structure 14 arranged on the circumferential water guide groove 13 is multiple, and the water guide channel of the first water guide structure 14 is arranged in a small-large-small structure from one end close to the circumferential drainage hole 7-4 to the other end close to the circumferential water throwing hole 7-5.

[0154] Specifically, the first water guide structure 14 is arranged on the circumferential water guide groove 13 in three, and the first water guide structure 14 includes a first water guide part 1401, a second water guide part 1402, and a third water guide part 1403. The upper end of the first water guide part 1401 is communicated with the second water guide part 1402, and the lower end of the third water guide part 1403 is communicated with the second water guide part 1402. This arrangement reasonably utilizes the structure of the circumferential water guide groove 13. The first water guide part 1401 is communicated with the circumferential drainage hole 7-4, and the third water guide part 1403 is communicated with the circumferential water throwing hole 7-5. On the one hand, the volume of the water guide channel of the first water guide structure 14 is as large as possible, and on the other hand, the communication positions of the circumferential drainage hole 7-4, the circumferential water throwing hole 7-5, and the first water guide structure 14 are arranged in a staggered manner, which facilitates the spinning and drying of the washing water in the washing tub 1 during high-speed rotation of the washing tub 1. At the same time, the third water guide part 1403 of the first water guide structure 14 communicated with the circumferential water throwing hole 7-5 is arranged in a constricted manner relative to the second water guide part 1402, which further improves the efficiency and reliability of discharging the washing water.

[0155] Further, a plurality of circumferential water guide grooves 13 are arranged on the washing tub circumferential surface 7, and a circumferential top plate 15 is arranged on the outer edge surface of each circumferential water guide groove 13. This arrangement further improves the efficiency of discharging the washing water during the drainage and dehydration of the tub water flow pipeline.

[0156] Preferably, a front plate drain hole 6-4 is arranged on the front plate 6 of the washing tub, an end water guide groove 16 is arranged on the outer side of the front plate 6 of the washing tub, a second water guide structure 17 is arranged on the side of the end water guide groove 16 close to the front plate 6 of the washing tub, the end water guide groove 16 and the front plate 6 of the washing tub form a front plate drain cavity with the second water guide structure 17, the end of the second water guide structure 17 and the end water guide groove 16 form a front plate water throwing hole 6-5, and the front plate drain hole 6-4, the end water guide groove 16, the second water guide structure 17 and the front plate water throwing hole 6-5 form a front plate water flowing pipeline. This arrangement discloses another front plate water flowing pipeline, which ensures the diversity and reliability of the washing water flowing out in the draining and dehydrating conditions.

[0157] Specifically, the included angle between the two ends of the front plate water flowing pipeline and the central axis of the washing tub in the circular projection with the central axis of the washing tub 1 as the center is α, the included angle between the two ends of the washing water surface 2 in the washing tub 1 and the central axis of the washing tub in the circular projection of the washing tub 1 is β, and α≥β.

[0158] Further, the end water guide groove 16 is arranged in a whole annular shape with the center of the front plate 6 of the washing tub as the center, the end water guide groove 16 includes a first limiting wall 1601 and a second limiting wall 1602, the second water guide structure 17 is formed between the first limiting wall 1601 and the second limiting wall 1602, the included angle between the two ends of the second water guide structure 17 and the center of the front plate 6 of the washing tub is 90-360 degrees, and preferably 100-180 degrees.

[0159] Preferably, the second water guide structure 17 formed on the end water guide groove 16 is multiple, and the water guide channels of the second water guide structure 17 are arranged in a small-large-small structure from one end close to the front plate drain hole 6-4 to the other end of the front plate water throwing hole 6-5.

[0160] Specifically, three second water guide structures 17 are arranged on the end water guide groove 16, the second water guide structure 17 includes a fourth water guide part 1701, a fifth water guide part 1702 and a sixth water guide part 1703, the upper end of the fourth water guide part 1701 is communicated with the fifth water guide part 1702, and the lower end of the fifth water guide part 1702 is communicated with the sixth water guide part 1703. This arrangement reasonably utilizes the structure of the end water guide groove 16, the fourth water guide part 1701 is communicated with the front plate drain hole 6-4, the sixth water guide part 1703 is communicated with the front plate water throwing hole 6-5, as shown in Figure 31 washing water flows from the inside of the washing tub 1 to the second water guide structure 17 through the front plate drain hole 6-4, and then flows in the front plate drain cavity according to the small-large-small structure of the water guide channels of the second water guide structure 17. Figure 31The arrow indicates that the water flows towards the front plate water discharge hole 6-5, thereby allowing the washing water to flow out of the washing tub during drainage and spin-drying operations. On the one hand, this maximizes the volume of the water channel of the second water intake structure 17. On the other hand, the connection positions of the front plate drain hole 6-4, the front plate water discharge hole 6-5, and the second water intake structure 17 are staggered, which facilitates the spin-drying of the washing tub 1 during high-speed rotation. At the same time, the sixth water intake section 1703, which connects the second water intake structure 17 and the front plate water discharge hole 6-5, is arranged in a contracted shape relative to the fifth water intake section 1702, further improving the efficiency and reliability of the washing water discharge.

[0161] Preferably, a rear drain hole 8-4 is provided on the rear plate 8 of the washing tub, and an end water guide groove 16 is provided on the outer side of the rear plate 8 of the washing tub to form a rear plate water flow pipe. The end water guide groove 16 provided on the outer side of the rear plate 8 of the washing tub has the same or similar structure as the end water guide groove 16 provided on the outer side of the front plate 6 of the washing tub.

[0162] In conjunction with Embodiment 3, this embodiment discloses another method for setting the water flow channel and the water flow structure of a washing tub with a unidirectional rotating water flow channel. Other structures are also set in the same way as in Embodiment 3. The working principle of the washing machine including it is the same as that described in Embodiment 2, and will not be repeated here.

[0163] The features and structures in the embodiments of the present invention can be combined with the structures and features in other embodiments, but only if they are feasible to those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0164] Example 5

[0165] like Figures 32-34 As shown, this embodiment discloses another type of washing tub with a spiral water flow channel. The washing tub 1 includes a front plate 6, a circumference 7, and a rear plate 8. A spiral water flow channel 18 is provided on the circumference 7. The spiral water flow channel 18 is spirally arranged. One end of the spiral water flow channel 18 is connected to the inside of the washing tub 1, and the other end of the spiral water flow channel 18 is located outside the washing tub 1. The spiral water flow channel 18 is spirally arranged, meaning that the centers of the two ends of the spiral water flow channel 18 are not on the same circumference with the central axis of the washing tub as the center. Other structures are the same as in Embodiment 1, Embodiment 2, Embodiment 3, or Embodiment 4.

[0166] Specifically, the included angle between the two ends of the spiral water flow channel 18 and the central axis of the washing tub in the circular projection with the central axis of the washing tub 1 as the center is α, and the included angle between the two ends of the washing water surface 2 in the washing tub 1 and the central axis of the washing tub in the circular projection of the washing tub 1 is β during washing of the washing machine, and α≥β.

[0167] Preferably, the spiral water flow channel 18 comprises a spiral water inlet pipe 18-3, which is arranged on the outer wall of the washing tub circumference 7. One end of the spiral water inlet pipe 18-3 is communicated with the washing tub 1 through a water inlet pipe drain port 18-4, and the other end of the spiral water inlet pipe 18-3 forms a water inlet pipe discharge port 18-5 arranged outside the washing tub 1.

[0168] Further, the projections of the two ends of the spiral water inlet pipe 18-3 on the circle with the central axis of the washing tub circumference 7 as the center are arranged in an arc shape, and the included angle between the projections of the two ends of the spiral water inlet pipe 18-3 on the circle and the center is not less than 90 degrees, preferably 100 degrees-180 degrees. This arrangement ensures that the arc length of the projections of the two ends of the spiral water flow channel 18 is greater than the arc length formed by the contact between the washing water surface 2 and the washing tub, and also improves the utilization efficiency of the outer wall of the washing tub circumference 7.

[0169] Preferably, as shown in Figure 32 The spiral water flow channel 18 is provided with multiple spiral water flow channels 18, and the water inlet pipe drain ports 18-4 of the multiple spiral water flow channels 18 can be arranged in parallel with the central axis of the washing tub circumference 7 or can be staggered with each other.

[0170] Further, the water inlet pipe discharge ports 18-5 of the multiple spiral water flow channels 18 can be arranged in parallel with the central axis of the washing tub circumference 7 or can be staggered with each other. This arrangement further improves the diversity and reliability of the outflow of the washing water in the washing tub in the drainage and dehydration conditions.

[0171] Preferably, the spiral water inlet pipe 18-3 is arranged in a gradually tapered manner from the water inlet pipe drain port 18-4 to the water inlet pipe discharge port 18-5. For example, the diameter of the water inlet pipe drain port 18-4 is greater than the diameter of the water inlet pipe discharge port 18-5, or the side of the spiral water inlet pipe 18-3 close to the water inlet pipe drain port 18-4 covers multiple water inlet pipe drain ports 18-4. This arrangement avoids the washing water adhering to the spiral water inlet pipe 18-3 under the action of centrifugal force and not flowing out from the water inlet pipe discharge port 18-5 when the washing tub rotates at a high speed during dehydration.

[0172] This embodiment discloses another setting mode and water flow structure of a washing tub with a falling selection type water flow channel. Other structures are the same as those of Embodiment 3 or Embodiment 4, and the working principle of the washing machine containing the same is the same as that described in Embodiment 2, which will not be repeated here.

[0173] The features and structures in the embodiments of the present invention can be combined with the structures and features in other embodiments, but only if they are feasible to those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0174] Example 6

[0175] like Figures 36-38 As shown, this embodiment discloses a self-cleaning drum and washing machine with water-dispersing ribs. Water-dispersing ribs 12 are provided inside the washing tub 1, and a first chamber 1201 is formed inside the water-dispersing ribs 12. A water-dispersing rib drain hole 12-4 is provided on the first chamber 1201, and the first chamber 1201 is connected to the inside of the washing tub 1 through the water-dispersing rib drain hole 12-4. A water flow channel 3 is provided outside the washing tub 1, with one end connected to the first chamber 1201 and the other end forming a water-throwing structure 5. The water-throwing structure 5 is located outside the washing tub 1. Other structures are the same as in other embodiments.

[0176] Specifically, the angle formed by the two ends of the water channel 3 and the central axis of the washing tub on the circular projection centered on the central axis of the washing tub 1 is α, and the angle formed by the two ends of the washing water surface 2 in the washing tub 1 and the central axis of the washing tub on the circular projection of the washing tub 1 during washing is β, where α≧β.

[0177] As an example, the water-dispelling rib drain hole 12-4, the first chamber 1201, the water flow channel 3, and the water-throwing structure 5 form a water flow pipeline on the washing tub 1. The water flow pipeline includes one or more of the tub body water flow pipeline, the front plate water flow pipeline, and the rear plate water flow pipeline. That is, the water flow channel 3 can be formed in one or more of the tub body, the front end of the washing tub, and the rear end of the washing tub.

[0178] Preferably, the water-dispersing ribs 12 are disposed on the inner wall of the washing tub 1, and the water-dispersing ribs 12 are arranged in an inclined manner from near the front end of the washing tub to the rear end of the washing tub.

[0179] Specifically, the water flow channel 3 is arranged counterclockwise from the end near the drain hole 12-4 of the water-dispelling rib to the end near the water-throwing structure 5. The water-dispelling rib 12 is arranged with a gradually increasing incline from the front end of the washing tub to the rear end of the washing tub. The water flow channel 3 includes a tub body water flow pipe and / or a front panel water flow pipe. As an example, such as... Figure 36The water-pushing ribs 12 are arranged from the front end of the washing tub, i.e. the side close to the water inlet 28, to the rear end of the washing tub, i.e. the side close to the flange 9. The water-pushing ribs 12 are arranged in an inclined upward structure. Under the action of the clockwise high-speed rotation of the washing drum, the washing water surface is formed at the lower left corner. Under the action of the inclined water-pushing ribs, the washing water is sent outward, and the washing water is accumulated at the water inlet. The water flow pipeline arranged on the tub body and / or the front plate facilitates water drainage and meets the washing and water drainage conditions.

[0180] Under the action of the counterclockwise rotation of the washing drum, the washing water surface is formed at the lower right corner. Under the action of the inclined water-pushing ribs, the washing water is sent to the side of the flange and accumulated on the inner side. The rear plate water flow pipeline is not arranged on the washing tub to avoid water leakage under the washing condition.

[0181] Alternatively, the water flow channel 3 is arranged clockwise as a whole from one end close to the water-pushing rib drain hole 12-4 to one end close to the water throwing structure 5. The water-pushing rib 12 is arranged in a gradually decreasing inclined shape as a whole from the front end of the washing tub to the rear end of the washing tub. The water flow channel 3 includes the water flow pipeline arranged on the tub body and / or the rear plate.

[0182] Preferably, the cross section of the water-pushing rib 12 is arranged in a triangular shape. The water-pushing rib 12 includes a water-pushing rib drain surface 1202, which is a surface of the water-pushing rib 12 away from the water throwing structure 5 connected thereto. This arrangement makes the water-pushing rib drain surface 1202 rotate against the washing water during the water drainage condition, which is more conducive to the drainage of the washing water.

[0183] Further, the included angle between the two ends of the circular arc of the water flow channel 3 relative to the center of the washing tub 1 is 90 degrees-360 degrees, preferably 100 degrees-180 degrees.

[0184] Preferably, a plurality of water flow pipelines, preferably 2-4, can be arranged on the front plate 6 and the rear plate 8 of the washing tub. A plurality of water flow pipeline devices, preferably 2-5, are arranged on the circumference 7 of the washing tub. Each water flow pipeline device is provided with a plurality of water flow pipelines, preferably 2-4.

[0185] Further, a plurality of water-pushing rib drain holes 12-4 are arranged on the water-pushing rib 12. One water throwing structure 5 is arranged at the end of each water flow channel 3. This arrangement further improves the efficiency of water drainage.

[0186] Preferably, a plurality of water-pushing ribs 12, preferably 2-6, are arranged inside the washing tub 1.

[0187] Further, as shown in FIG. 1, the water-pushing rib 12 is arranged on the inner wall of the washing tub 1. The water-pushing rib 12 is arranged from the front end of the washing tub to the rear end of the washing tub. The water-pushing rib 12 is arranged in an inclined upward structure. The water-pushing rib 12 is arranged in a gradually decreasing inclined shape as a whole from the front end of the washing tub to the rear end of the washing tub. Figure 38As shown, the drainage water-facing surface 1202 is arc-shaped and concave, and multiple water-repellent ribs and drainage holes 12-4 are provided on the drainage water-facing surface 1202. This arrangement further improves the reliability and efficiency of drainage in the water flow channel 3.

[0188] Preferably, as some embodiments of the present invention, the drain hole 12-4 of the water-dispensing rib is arranged in contact with the tub wall of the washing tub circumference 7. This arrangement further ensures the reliability and efficiency of drainage from the water flow channel 3.

[0189] This embodiment discloses another method of setting up a self-cleaning drum with water-repellent ribs and a water flow channel and water flow structure of a washing machine. Other structures are the same as or similar to those in other embodiments. The working principle of the washing machine including it is the same as that described in Embodiment 2, and will not be repeated here.

[0190] The features and structures in the embodiments of the present invention can be combined with the structures and features in other embodiments, but only if they are feasible to those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0191] Example 7

[0192] like Figure 22 , 39 As shown in Figure 41, a structural schematic diagram of a washing tub with a bidirectional water flow channel is disclosed, including a washing tub 1 and a water flow channel 3 connected to the washing tub 1. A valve is provided at one end of the water flow channel 3. The water flow channel 3 is configured as tubular or flat. When the water flow channel 3 is located outside the washing tub 1, the structure or features are the same as those in other embodiments.

[0193] One end of the water flow channel 3 is connected to the interior of the washing tub 1, and the other end is located on the exterior of the washing tub 1. The water flow channel 3 is tightly connected to the outer wall of the washing tub 1 and rotates together with the washing tub 1. A drainage structure 4 is provided on the washing tub 1, which is used to direct the water in the washing tub 1 to the water flow channel 3. A water-throwing structure 5 is provided at the other end of the water flow channel 3, and the water-throwing structure 5 is located on the exterior of the washing tub 1.

[0194] Preferably, the inner wall of the washing tub 1 is provided with a spiral water-repelling rib 12, and the drainage structure 4 can also be provided on the water-facing surface of the water-repelling rib 12, so that the water in the washing tub 1 can quickly enter the water flow channel 3 during dehydration, thereby reducing the dehydration time.

[0195] The water flowing channel 3 is connected to the outer wall of the washing tub 1, and has an arc structure. The two ends of the water flowing channel 3 are located on the same section with the center axis of the washing tub 1 as the center, or the two ends of the water flowing channel 3 are located on different sections with the center axis of the washing tub 1 as the center, that is, the water flowing channel 3 can be arranged in a spiral shape. When the horizontal positions of the two ends of the water flowing channel 3 are lower than the washing water surface 2 during the rotation of the washing tub, the washing tub 1 will inevitably leak during the rotation washing process. Therefore, the horizontal position of at least one end of the two ends of the water flowing channel 3 is higher than the liquid surface, and preferably, the included angle between the projection of the two ends of the water flowing channel 3 on the same section with the center axis of the washing tub 1 as the center and the center of the section is 90-360 degrees.

[0196] Preferably, the outer part of the washing tub 1 can be provided with a cover plate. The water channel groove is formed on the washing tub 1 by rolling, and the cover plate and the water channel groove form the water flowing channel. The washing tub 1 includes a washing tub front plate 6, a washing tub circumference 7 and a washing tub rear plate 8. The front plate water channel groove 6-3 is arranged on the outer part of the washing tub front plate 6. The circumference water channel groove is arranged on the washing tub circumference 7. The rear plate water channel groove 8-3 is arranged on the outer part of the washing tub rear plate 8. The specific structure is the same as that of other embodiments.

[0197] In order to ensure that the water in the washing tub can not leak during the washing state and can be quickly drained during the dehydration working condition when the water level is low and high, preferably, the included angle between the projection of the two ends of the water flowing channel 3 on the same section with the center axis of the washing tub 1 as the center and the center of the section is 100-180 degrees. The water flowing channel 3 can be provided with at least one group on the washing tub 1, and each group can be provided with 1-4, preferably 2-3.

[0198] It is well known that the use of bidirectional rotating washing machine can save washing time and improve the effect of the washing machine. However, for the non-porous inner cylinder bidirectional rotating drum washing machine, how to set a water flowing channel which can not leak during the washing rotation of the washing tub and can quickly drain the washing water during the dehydration rotation of the washing tub is a difficult problem. The valve arranged at one end of the water flowing channel can realize the bidirectional rotation washing of the washing tub without water leakage during the low-speed rotation washing and can quickly drain the washing water during the high-speed reverse rotation of the washing tub.

[0199] Therefore, the valve arranged at one end of the water flowing channel 3 can realize the bidirectional rotation washing of the washing tub by controlling the opening and closing state of the valve. The valve can be an elastic valve 35 or a gravity one-way valve 36. The elastic valve 35 or the gravity one-way valve 36 can flow the washing water in the washing tub from the water flowing channel 3 to the outside of the washing tub under the action of the high-speed rotation centrifugal force of the washing tub. The rotation speed of the high-speed rotation of the washing tub is not less than 80 r / min.

[0200] This invention also discloses a method for draining a washing machine with bidirectional washing capabilities, such as... Figure 40 As shown, the drum washing machine includes a washing tub 1, and a water flow channel 3 is provided on the washing tub 1. One end of the water flow channel 3 is connected to the washing tub 1, and a drainage structure 4 is provided at the connection between the washing tub and the water flow channel 3. The remaining positions are without holes. The other end of the water flow channel 3 is formed outside the washing tub. The projection of the water flow channel 3 onto a circle with the central axis of the washing tub as the center is arc-shaped or circular. The angle formed by the two ends of the water flow channel 3 and the central axis of the washing tub on the circular projection of the washing tub 1 is α. The angle formed by the two ends of the washing water surface in the washing tub 1 and the central axis of the washing tub on the circular projection of the washing tub 1 during washing is β. α≧β. In order to more clearly explain the working principle of the washing machine of the present invention, the following definition is made: the direction of the water flow channel from the drainage structure 4 to the water throwing structure 5 is defined as the direction of the water flow channel 3.

[0201] During washing and rinsing, the rotation speed of the washing tub 1 is no more than 80 r / min, and the rotation direction of the washing tub 1 is the same as or opposite to that of the water flow channel 3. During drainage and spin-drying, the rotation direction of the washing tub 1 is opposite to that of the water flow channel 3, and the rotation speed of the washing tub increases. After the rotation speed of the washing tub 1 exceeds 80 r / min, the valve of the water flow channel opens under the action of centrifugal force.

[0202] The features and structures in the embodiments of the present invention can be combined with the structures and features in other embodiments, but only if they are feasible to those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0203] Example 8

[0204] like Figures 40-42 As shown, this embodiment provides a washing tub for bidirectional washing. A water flow channel 3 is provided on the side wall of the washing tub, and an elastic valve 35 is provided at one end of the water flow channel 3 to realize bidirectional rotation washing of the washing tub. The water flow channel 3 has the same or similar structure as other embodiments.

[0205] The elastic valve 35 is located at the water-throwing structure 5 of the water flow channel 3. Specifically, the elastic valve 35 includes a return spring 31, a metal ball 32, a sealing gate 33, and a pivot pin 34. When the washing tub is stationary, the sealing gate 33 covers the outer surface of the water-throwing structure 5 of the water flow channel 3 under the action of the return spring 31. At this time, the elastic valve 35 is in the closed state, preventing water in the water flow channel 3 from flowing out of the water-throwing structure 5.

[0206] As some examples of the present invention, the water-throwing structure 5 can be a water-throwing hole formed at one end of the water flow channel 3, and the drainage structure 4 can be a drainage hole formed on the washing tub 1.

[0207] During washing, if the washing tub 1 rotates in the same direction as the water flow channel 3, the elastic valve 35 closes, and the water in the washing tub 1 is not discharged. Similarly, during washing, if the rotation speed of the washing tub 1 is below 80 r / min, and the rotation direction of the washing tub 1 is opposite to that of the water flow channel 3, the elastic valve 35 remains closed, and the water in the washing tub 1 is not discharged. In this embodiment, the elastic valve 35 enables the holeless washing tub washing machine to achieve bidirectional rotation washing.

[0208] During the dehydration process, the washing tub 1 rotates in the opposite direction to the water flow channel 3. The washing tub 1 starts to rotate in the opposite direction at high speed. When the rotation speed of the washing tub 1 is greater than 80 r / min, the centrifugal force generated by the metal ball 32 overcomes the tension of the return spring 31, and the sealing door 33 opens. The water in the washing tub 1 flows out from the drainage structure 4, to the water flow channel 3, and through the water throwing structure 5. The faster the washing tub 1 rotates, the greater the centrifugal force generated by the metal ball 32, the greater the opening angle of the sealing door 33, and the faster the water in the washing tub 1 flows out.

[0209] This embodiment provides a holeless washing tub, which enables bidirectional rotation washing, effectively prevents the washing machine from leaking, avoids secondary pollution of clothes, and achieves automatic drainage, making it of great value for widespread application.

[0210] The features and structures in the embodiments described in this invention can be combined with the structures and features in other embodiments, but only if they are feasible to those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0211] Example 9

[0212] like Figures 43-44 As shown, this embodiment provides a two-way washing tub, with a water flow channel 3 provided at the front panel 6 or 8 of the washing tub 1. When the water flow channel 3 is provided at the front panel 6 of the washing tub 1, a drainage structure 4 is provided on the front panel 6. The outer surface of the front panel 6 is covered with an end guide groove, and the inner surface of the end guide groove is provided with a semi-enclosed second water guiding structure 17. This second water guiding structure 17 and the front panel 6 of the washing tub 1 form the water flow channel 3.

[0213] Similarly, a semi-enclosed front panel water channel 6-3 with an inwardly recessed shape can be provided on the outer surface of the front panel 6 of the washing tub. The front panel cover plate 6-6 covers the outer surface of the front panel water channel 6-3. The front panel cover plate 6-6 and the semi-enclosed front panel water channel 6-3 on the outer surface of the front panel 6 of the washing tub form a water flow channel 3. One end of the front panel water channel 6-3 coincides with the drainage structure 4 on the front panel 6 of the washing tub, and the other end of the front panel water channel 6-3 forms a water-throwing structure 5 for the water flow channel 3. The water-throwing structure 5 is provided at the edge of the front panel 6 of the washing tub, and an elastic valve 35 is provided at the water-throwing structure 5. The structure and working principle of the elastic valve 35 are the same as in embodiment 7.

[0214] During washing, when the rotation speed of the washing tub 1 is below 80 r / min, the elastic valve 35 is closed regardless of whether the rotation direction of the washing tub 1 is the same as or opposite to that of the water flow channel 3, and the water in the washing tub 1 is not discharged. During spin-drying, when the rotation direction of the washing tub 1 is opposite to that of the water flow channel 3, and the rotation speed of the washing tub 1 is above 80 r / min, the elastic valve 35 is open, and the water in the washing tub 1 flows into the second water inlet structure 17 through the drain structure 4, and flows out from the water throw structure 5 as the washing tub 1 rotates.

[0215] The non-porous washing tub provided in this embodiment has the water flow channel located at the front or rear end of the washing tub, which effectively increases the cross-sectional area of ​​the washing tub and the volume of clothes that can be accommodated.

[0216] The features and structures in the embodiments described in this invention can be combined with the structures and features in other embodiments, but only if they are feasible to those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0217] Example 10

[0218] like Figure 45 As shown, this embodiment provides a washing tub with bidirectional washing capability. A water flow channel 3 is provided on the side wall of the washing tub 1, and a one-way valve 36 is provided at one end of the water flow channel 3 to realize bidirectional rotation washing of the washing tub. The one-way valve 36 is located at the drainage structure 4 of the water flow channel 3, and the one-way valve 36 is designed to open from the inside out. Specifically, when the washing tub 1 is stationary, the one-way valve 36 is in the closed state without external force.

[0219] During washing, when the rotation speed of the washing tub 1 is less than 80 r / min and the rotation direction of the washing tub 1 is the same as that of the water flow channel 3, the water in the washing tub 1 will not be discharged. Similarly, during washing, when the rotation direction of the washing tub 1 is opposite to that of the water flow channel 3, due to the lower rotation speed of the washing tub 1, the centrifugal force on the one-way valve 36 is also smaller and it remains closed. At this time, the water in the washing tub 1 will not flow out. In this embodiment, the one-way valve 36 enables the holeless inner drum washing machine to achieve bidirectional rotation washing.

[0220] During the spin-drying process, the rotation direction of the washing tub 1 is opposite to that of the water flow channel 3. The washing tub 1 starts to rotate in the opposite direction at high speed. When the speed of the washing tub 1 is higher than 80 r / min, the one-way valve 36 opens from the inside of the washing tub to the outside due to the large centrifugal force. At this time, the water in the washing tub 1 flows out from the drainage structure 4, to the water flow channel 3, and through the water throwing structure 5, thus realizing the spin-drying of the washing machine.

[0221] This embodiment features a one-way valve on the inner drum, enabling bidirectional washing functionality in a washing machine with a holeless inner drum. Furthermore, the one-way valve has a simple structure, facilitating future maintenance and replacement.

[0222] The features and structures in the embodiments of the present invention can be combined with the structures and features in other embodiments, but only if they are feasible to those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0223] Example 11

[0224] like Figures 46-48 As shown, in this embodiment, the non-perforated washing tub has one end of the drainage structure 4 of the water flow channel 3 extending into the interior of the washing tub 1 through the front plate 6. The water flow channel 3 is vertically inserted into the interior of the front plate 6, and inside the washing tub 1, the water flow channel 3 points towards the axis of the washing tub 1. The end of the water flow channel 3 inside the washing tub 1 is configured as the drainage structure 4, and a one-way valve 36 is installed on the drainage structure 4. During washing, when the rotation speed of the washing tub 1 is less than 80 r / min, and the rotation direction of the washing tub 1 is the same as that of the water flow channel 3, the water in the washing tub 1 will not be discharged; when the rotation direction of the washing tub 1 is opposite to that of the water flow channel 3, due to the lower rotation speed of the washing tub 1, the centrifugal force on the one-way valve 36 is also smaller, and it remains closed, so the water in the washing tub 1 will not flow out.

[0225] During the spin-drying process, the rotation direction of the washing tub 1 is opposite to that of the water flow channel 3. As the rotation speed of the washing tub 1 gradually increases, when the rotation speed of the washing tub 1 exceeds 80 r / min, the one-way valve 36 opens from the inside to the outside due to the large centrifugal force. At this time, the water in the washing tub 1 flows out from the drainage structure 4, through the water flow channel 3, and through the water throwing structure 5, thus realizing the spin-drying of the washing machine.

[0226] In summary, the one-way valve 36 is opened by the centrifugal force generated when the washing tub 1 rotates at high speed. Therefore, the direction of the drain structure 4 must be pointed towards the axis of the washing tub.

[0227] As some embodiments of the present invention, when one end of the drainage structure 4 of the water flow channel 3 extends into the interior of the washing tub 1 through the front plate 6 of the washing tub, the body of the water flow channel 3 can be set on the outer surface of the front plate 6 of the washing tub, or it can be set on the side wall of the washing tub 1 near the front plate 6 of the washing tub.

[0228] like Figure 35 As shown in the figure, as some embodiments of the present invention, the present invention also provides a bidirectional rotating drum washing machine, which includes the washing tub 1 and water flow channel 3 described above. A valve is provided at one end of the water flow channel 3. It also includes an outer tub 20, a housing 21 and a door cover 24. The outer tub 20 is concentrically arranged with the washing tub 1. The bottom of the outer tub 20 is provided with a drain outlet 25, and a drain outlet 26 is connected to the drain outlet 25. The drain outlet 26 extends through the housing 21. It also includes a water inlet channel, on which a rapid heating device is provided. The water inlet channel includes a water inlet hose 30 and a water spray hose 22. The water inlet hose 30 is located at the top inside the housing 21. One end of the water inlet hose 30 is installed on the housing 21 through a water inlet valve 19, and the other end is connected to the water spray hose 22 through a washing box 29 installed on the housing 21. It is installed at the front of the inner part of the box body 21 and mounted on the door cover 24 through the spray nozzle 23. The water sprayed from the spray nozzle 23 can pass through the water inlet 28 of the tub cover 10 and enter the washing tub 1; the spray nozzle 23 and the spray hose 22 are connected by a union joint.

[0229] The features and structures in the embodiments of the present invention can be combined with the structures and features in other embodiments, but only if they are feasible to those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0230] Example 12

[0231] This embodiment provides a method for draining a washing machine that performs two-way washing, including the following steps:

[0232] Turn on the washing machine and select one of the following modes: washing, rinsing, or spin-drying.

[0233] During the washing process, the washing tub starts to rotate at a speed not exceeding 80 r / min. The valve on the water flow channel is closed, and the direction of rotation of the washing tub is the same as or opposite to the direction of the water flow channel 3. The water inlet valve 19 is opened, and tap water is injected into the washing tub through the water inlet channel until the liquid level is reached as set in the washing program. After the water is injected, the washing tub continues to rotate in both directions and begins washing.

[0234] During the dehydration process, the washing tub rotates unidirectionally in the opposite direction to the water flow channel 3. When the washing tub rotates at a speed greater than 80 r / min, the water flow channel valve opens, and the water in the washing tub flows out through the water flow channel.

[0235] Preferably, the angle α formed by the two ends of the water flow channel 3 and the central axis of the washing tub on the circular projection of the washing tub 1 ranges from 90° to 360°, and is more preferably from 100° to 180°.

[0236] Furthermore, the rinsing conditions are the same as the washing conditions.

[0237] The features and structures in the embodiments of the present invention can be combined with the structures and features in other embodiments, but only if they are feasible to those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0238] The bidirectional washing machine drainage method provided in this embodiment prevents water from flowing between the washing tub and the outer tub during the washing process, thus saving water and avoiding secondary pollution of clothes. It also achieves the effect of water-free bidirectional rotation washing in a holeless inner drum washing machine.

[0239] Example 13

[0240] like Figures 49 As shown, this embodiment provides a washing machine including an inclined washing tub. A water flow channel 3 is provided on the circumference 7 of the washing tub near the rear plate 8 of the washing tub. Alternatively, a water flow channel 3 is provided on the rear plate 8 of the washing tub near the circumference 7 of the washing tub. The structure or features of the water flow channel 3 are the same as those in other embodiments.

[0241] A flexible valve 35 is provided at one end of the water flow channel 3. The flexible valve is used to rotate the washing tub in both directions for washing. The flexible valve 35 has the same structure or features as the flexible valves in other embodiments.

[0242] The elastic valve 35 is arranged at the water throwing structure 4 of the water flowing channel 3, and specifically, the structure of the elastic valve 35 comprises a reset spring 31, a metal ball 32, a door 33 and a rotating pin 34.

[0243] In the washing condition, if the rotating direction of the washing tub 1 is the same as that of the water flowing channel 3, the elastic valve 35 is closed, and the water in the washing tub 1 is not discharged.

[0244] In the washing condition, if the rotating direction of the washing tub 1 is the same as that of the water flowing channel 3, the elastic valve 35 is closed, and the water in the washing tub 1 is not discharged.

[0245] Preferably, when the water flowing channel 3 is arranged at the position close to the rear plate 8 of the washing tub 1, the valve on the water flowing channel 3 can be arranged as a one-way valve 36, and the one-way valve 36 is arranged at the end of the water flowing channel 3 close to the water discharging structure 5.

[0246] The features and structures in the embodiments of the present application can be combined with the features and structures of other embodiments, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application.

[0247] The inclined washing tub provided by the present application is convenient for users to take and put clothes, realizes bidirectional rotating washing, effectively prevents the washing machine from leaking, avoids secondary pollution of the clothes, realizes automatic water discharging, and has great popularization and application value.

[0248] Embodiment 14

[0249] As Figures 50-54As shown, the present application provides a washing tub with a washing tub door, which comprises a washing tub 1, the washing tub 1 is a washing tub with a water flow channel 3, one end of the water flow channel 3 is communicated with the washing tub 1 through a drainage structure 4, the other end of the water flow channel 3 is communicated with a water throwing structure 5, the water throwing structure 5 is arranged outside the washing tub 1, the structure and characteristics of the water flow channel 3 are the same as those in other embodiments, a washing tub door 39, a fixing ring 37 and a hinge 38 are arranged at the front end of the washing tub 1, the fixing ring 37 is arranged on the washing tub front plate 6 of the washing tub 1, the washing tub door 39 is connected with the fixing ring 37 through the hinge 38, the washing tub door 39 can rotate around the hinge 38, and the washing tub door 39 can be in an open or closed state relative to the washing tub 1.

[0250] A handle 40 is arranged on the washing tub door 39, the handle 40 is arranged on the washing tub door 39, the handle 40 is arranged on the side away from the hinge 38, the handle 40 is provided with a clamping hook 43 and a locking spring 41, the fixing ring 37 is provided with a clamping groove 44, the clamping groove 44 is matched with the clamping hook 43, when the washing tub door 39 is pushed to the fixing ring 37, the clamping hook 43 can be clamped into the clamping groove 44 for fixation.

[0251] Preferably, the fixing ring 37 is provided with a door seal 45, the door seal 45 is a rubber door seal, by arranging the door seal 45, the sealing degree of the washing tub door 39 and the washing tub 1 is increased, so that water is prevented from leaking or seeping out from the gap between the two and flowing into the washing tub 1 and the outer tub.

[0252] Further, the washing tub door 39 can rotate by a certain angle around the hinge 38, so that the user can conveniently open or close the washing tub door 39, the rotation angle is preferably 30°-150°, preferably, the rotation angle is preferably 30°-90°, the handle 40 and the hinge 38 are symmetrically distributed on the washing tub door 39, so that the user can more conveniently and labor-savingly open the washing tub door 39.

[0253] Further, the handle 40 can be arcuately rotated relative to the washing tub door 39, the arcuate rotation can be outward rotation relative to the washing tub door 39, or can be arcuately rotated upward or downward relative to the washing tub door 39, so that the convenience of opening the washing tub door is further improved.

[0254] Further, the washing tub door 39 can be integrally rotated with the washing tub 1.

[0255] The features and structures in the embodiments of the present application can be combined with the structures and features of other embodiments, but it must be based on that the combination of the technical solutions can be realized by the ordinary skilled in the art, when the combination of the technical solutions appears mutual contradiction or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and is not within the protection scope required by the present application.

[0256] Embodiment 15

[0257] This embodiment is further described on the basis of embodiment 14, a washing tub with a washing tub door.

[0258] Preferably, the washing tub door 39 is provided with a positioning pin 3901, and the fixing ring 37 is provided with a positioning hole 3701 corresponding to the positioning pin 3901. The positioning pin 3901 can be inserted into the positioning hole 3701 under the centrifugal force of the high-speed rotation of the washing tub 1, and the positioning pin 3901 is separated from the positioning hole 3701 when the washing tub 1 is stationary.

[0259] The positioning pin 3901 is provided with an elastic component 3902. When the washing tub 1 rotates at high speed during dehydration, the washing tub door 39 is driven to rotate, and the positioning pin 3901 is inserted into the positioning hole 3701 under the centrifugal force, overcoming the elastic force of the elastic component 3902. The higher the rotation speed of the washing tub 1, the longer the positioning pin 3901 is inserted into the positioning hole 3701, and the more firmly the washing tub door 39 is fixed. When the washing tub 1 stops rotating, the positioning pin 3901 is separated from the positioning hole 3701 under the action of the elastic component 3902.

[0260] Working principle: The operator pushes the handle 40 to close the washing tub door 39, and fixes the washing tub door 39 on the fixing ring 37 through the catch 43 and the locking spring 41. The door seal 45 seals between the two, and the washing tub door 39 can rotate with the washing tub 1. When the washing machine stops working, the operator pulls the handle 40 by hand to overcome the locking force of the locking spring 41, so that the catch 43 is separated from the card groove 44, and the washing tub door 39 is opened, which is convenient for taking and putting clothes.

[0261] The features and structures in the embodiments of the present application can be combined with the structures and features of other embodiments, but must be based on the realization of ordinary skilled in the art. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0262] The washing tub with a washing tub door of the present application can operate at different water levels of low water level, medium water level and high water level, avoiding the phenomenon that washing water splashes out of the washing tub and flows into the inner and outer barrels during the washing process, improving the washing and rinsing capacity of the drum washing machine, saving water and electricity, and better achieving the washing effect.

[0263] Embodiment 16

[0264] This embodiment is further described on the basis of embodiment 15, a washing tub with a washing tub door.

[0265] As Figure 55As shown, the self-cleaning washing tub is installed inside the housing 21. A magnet 42 is installed on the handle 40 of the washing tub door 39. A position sensor 46 is installed on the door cover 24 of the washing machine relative to the magnet 42. The position sensor 46 is connected to the main control computer board. In this embodiment, the washing machine has the function of positioning the washing tub 1. When the washing tub 1 of the washing machine stops rotating, it is always in the same position, and the washing tub door 39 on the washing tub 1 can be reliably opened.

[0266] Working principle: After closing the washing tub door 39 and then closing the door cover 24, the washing machine starts running. First, it detects whether the door cover 24 is closed, and then it senses whether the washing tub door 39 is closed through the position sensor 46. If the magnet 42 is relatively close to the position sensor 46 on the door cover 24, it is determined that the washing tub door 39 is not fully engaged and the machine cannot run. At this time, the washing machine will alarm and remind you to close the washing tub door 39 again. Only when the washing tub door 39 is fixed in the washing tub 1 as set can the washing machine run normally.

[0267] If the magnet 42 is relatively far from the position sensor 46 on the door cover 24, it is determined that the washing tub door 39 is fully engaged, and the washing machine can operate normally.

[0268] The features and structures in the embodiments of the present invention can be combined with the structures and features in other embodiments, but only if they are feasible to those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0269] Example 17

[0270] like Figures 1-55 As shown, this embodiment discloses a washing tub with a water flow channel. A water flow channel 3 is provided on the washing tub 1. The water flow channel can rotate integrally with the washing tub 1. One end of the water flow channel 3 is connected to the inside of the washing tub, and the other end of the water flow channel 3 is located outside the washing tub 1. The washing water inside the washing tub can be discharged to the outside of the washing tub 1 through the water flow channel 3. The angle formed by the two ends of the water flow channel 3 and the central axis of the washing tub on the circular projection with the central axis of the washing tub 1 as the center is α. When the washing machine is washing, the angle formed by the two ends of the washing water surface 2 inside the washing tub 1 and the central axis of the washing tub on the circular projection of the washing tub 1 is β, where α≧β.

[0271] Preferably, the value of α ranges from 90° to 360°, and the structure and features of the water flow channel are the same as those of the water flow channels described in other embodiments.

[0272] In some embodiments of the present application, the range of values of a can also be 80°, 120°, 135°, 145°, 150°, 160°, 200°-250°, 280°, 320°.

[0273] In some embodiments of the present application, the plurality of water flow channels 3 provided on the washing tub 1 can be bidirectional. That is, some of the plurality of water flow channels can be counterclockwise, and the others can be clockwise.

[0274] Preferably, the two ends of the water flow channel 3 are on the circumference of a circle with the center axis of the washing tub as the center, and the water flow channel 3 is arranged in an arc shape.

[0275] The water flow channel can be formed on the washing tub 1 by rolling, or can be formed by a water guide groove structure, which includes a circumferential water guide groove 13 and / or an end water guide groove 16.

[0276] Further, the washing tub 1 includes a washing tub front plate 6, a washing tub circumference 7, and a washing tub rear plate 8, and the water flow channel 3 provided on the washing tub circumference 7 is a spiral water flow channel 18, and the two ends of the spiral water flow channel 18 are arranged in a spiral shape.

[0277] Preferably, a plurality of water flow channels 3 are provided on the washing tub 1.

[0278] Further, a valve is provided at one end of the water flow channel 3, which can be opened under the action of centrifugal force when the washing tub rotates at a high speed, and the rotation speed of the washing tub at a high speed is 80 r / min. The valve has the same structure and characteristics as the valve in other embodiments.

[0279] Specifically, the valve can be an elastic valve 35 and / or a one-way valve 36.

[0280] Preferably, a washing tub door 39 is provided on the washing tub 1, and the washing tub door 39 is hingedly connected to the washing tub, and the washing tub door 39 can rotate around the hinge 38 to make the washing tub door 39 in an open or closed state relative to the washing tub 1.

[0281] Further, the washing tub door 39 is provided with a handle 40 and a positioning pin 3901, the handle 40 is provided on the washing tub door 39, the handle 40 is provided on the side away from the hinge 38, the handle 40 is provided with a hook 43 and a locking spring 41, a fixing ring 37 is provided on the washing tub front plate 6, the fixing ring 37 is provided with a clamping groove 44 and a positioning hole 3701, the clamping groove 44 cooperates with the hook 43, and when the washing tub door 39 is pushed towards the fixing ring 37, the hook 43 can be clamped into the clamping groove 44 for fixation.

[0282] The embodiment also discloses a washing machine with a washing tub with a water flow channel, comprising the washing tub 1, an outer tub 20 is arranged outside the washing tub 1, the water throwing structure 5 of the water flow channel 3 is arranged between the washing tub 1 and the outer tub 20, the bottom of the outer tub 20 is provided with a drain port 25, and a drain pipe 26 is connected to the drain port 25.

[0283] The embodiment also discloses a draining method of a drum washing machine, the drum washing machine comprising a washing tub 1, a water flow channel 3 is arranged on the washing tub 1, one end of the water flow channel 3 is communicated with the washing tub 1, a flow hole is arranged at the position where the washing tub 1 is communicated with the water flow channel 3, and the rest positions are not provided with holes, the other end of the water flow channel 1 is formed outside the washing tub, the projection of the water flow channel 3 on a circle with the center axis of the washing tub as the center is in an arc shape or a circular shape, the included angle between the two ends of the water flow channel 3 and the center axis of the washing tub on the circular projection of the washing tub 1 is α, the included angle between the two ends of the water surface 2 in the washing tub 1 and the center axis of the washing tub on the circular projection of the washing tub 1 during washing of the washing machine is β, α>β, the washing machine is unidirectionally rotated during washing, during draining and during dehydration, the clockwise direction formed from the position where the water flow channel 3 is communicated with the washing tub to the end of the water flow channel 3 is the same as the clockwise direction during washing of the washing tub, the direction of rotation of the washing tub during washing is opposite to the direction of rotation of the washing tub during draining, and the direction of rotation of the washing tub during draining is the same as the direction of rotation of the washing tub during dehydration.

[0284] The application also discloses a draining method of the drum washing machine, the washing barrel is provided with a water flowing channel, a valve is arranged at one end of the water flowing channel 3, or the washing machine comprises the above washing barrel, the drum washing machine comprises a washing barrel 1, a water flowing channel 3 is arranged on the washing barrel 1, one end of the water flowing channel 3 is communicated with the washing barrel 1, a flow hole is arranged at the position where the washing barrel 1 is communicated with the water flowing channel 3, and the rest positions are not provided with holes, the other end of the water flowing channel 1 is formed outside the washing barrel, the projection of the water flowing channel 3 on a circle with the center axis of the washing barrel as the center is in an arc shape or a circular shape, the included angle formed by the two ends of the water flowing channel 3 and the center axis of the washing barrel on the circular projection of the washing barrel 1 is α, the included angle formed by the two ends of the water surface 2 in the washing barrel 1 and the center axis of the washing barrel on the circular projection of the washing barrel 1 during washing of the washing machine is β, α >= β, the washing machine can rotate in one direction during washing operation, or can rotate back and forth in two directions, the washing machine rotates in one direction during draining operation and during dehydration operation; when the washing machine rotates in one direction during washing operation, the hour hand direction formed by the position where the water flowing channel 3 is communicated with the washing barrel to the end of the water flowing channel 3 is the same as the hour hand direction during rotation of the washing barrel during washing, the rotation direction of the washing barrel during washing operation is opposite to the rotation direction of the washing barrel during draining operation, and the rotation direction of the washing barrel during draining operation is the same as the rotation direction of the washing barrel during dehydration operation; when the washing machine rotates in two directions during washing operation, the hour hand direction formed by the position where the water flowing channel 3 is communicated with the washing barrel to the end of the water flowing channel 3 is opposite to the rotation hour hand direction of the washing barrel 1 during draining operation and during dehydration operation.

[0285] Embodiment 18

[0286] The first object of the embodiment is to provide a water flowing channel of a self-cleaning washing barrel, which utilizes rotation and air resistance principles to realize automatic draining and water sealing, reduces control devices, and saves costs.

[0287] The second object of the embodiment is to provide a self-cleaning washing barrel with a water flowing channel, which effectively avoids reduction of washing water and improves the reliability of draining.

[0288] The third object of the embodiment is to provide a self-cleaning washing machine, which shows how to arrange a water flowing channel and a water inlet channel on the washing machine, and improves the automation of water inlet and draining.

[0289] According to the first object, the technical scheme of the embodiment is as follows: a water flowing channel of a self-cleaning washing barrel, which comprises a water passing hole arranged on the barrel wall of the washing barrel, the water passing hole is communicated with a water passing groove arranged on the washing barrel, the water passing groove is provided with a water passing opening, and the water passing hole, the water passing groove and the water passing opening form a water flowing channel, and the water flowing channel is arranged in a circular arc shape on a circle with the center axis of the washing barrel as the center.

[0290] Further, the water flow channel is arranged outside the barrel wall and / or end of the washing barrel.

[0291] Further, the water flow channel is flat or tubular.

[0292] Further, the included angle of the two ends of the water flow channel relative to the center of the washing barrel is 90-360 degrees.

[0293] Further, the included angle of the two ends of the water flow channel relative to the center of the washing barrel is 100-180 degrees.

[0294] Further, the water flow channel can be arranged in one or more groups, each group having 2-4 channels arranged uniformly concentrically around the center of the washing barrel.

[0295] According to the second purpose, the technical scheme of the embodiment is: a washing barrel manufactured by using the water flow channel of the above-mentioned self-cleaning washing barrel, one end of the water flow channel is connected to the inside of the washing barrel through a water passing hole, and the other end is connected to the outside of the washing barrel through a water passing opening, in the washing condition, the rotation direction of the washing barrel is the circumferential direction from the starting point of the water passing hole of the water flow channel to the ending point of the water passing opening; in the dehydration or drainage condition, the rotation direction of the washing barrel is the circumferential direction from the starting point of the water passing opening of the water flow channel to the ending point of the water passing hole.

[0296] Further, the front end of the barrel wall of the washing barrel is connected with a front plate, and a barrel cover is arranged outside the middle of the front plate.

[0297] Further, the barrel cover is connected with the front plate through a hinge or a buckle.

[0298] Further, a water inlet is arranged in the middle of the barrel cover to facilitate water inlet.

[0299] Further, a water repelling rib is arranged, and the water repelling rib is arranged in a spiral shape relative to the central axis of the washing barrel.

[0300] According to the third purpose, the technical scheme of the embodiment is: a washing machine provided with the above-mentioned washing barrel, further comprising an outer barrel, a box body and a door cover, the outer barrel is arranged concentrically with the washing barrel, the bottom of the outer barrel is provided with a drainage opening, and a drainage pipe is connected to the drainage opening and extends out through the box body.

[0301] Further, a rapid heating device is arranged on the water inlet channel.

[0302] Further, the water inlet channel comprises a water inlet hose and a water spraying hose, the water inlet hose is arranged at the top of the box body, one end of the water inlet hose is installed on the box body through a water inlet valve, and the other end of the water inlet hose is connected with the water spraying hose through a washing powder box installed on the box body, the water spraying hose is arranged at the front inner part of the box body and is arranged on the door cover through a water spraying nozzle, and water sprayed from the water spraying nozzle can enter the washing tub through the water inlet of the drum cover.

[0303] Further, the water spraying nozzle and the water spraying hose are connected through a union joint.

[0304] Compared with the prior art, the advantages and beneficial effects of the embodiment are that the washing tub provided with the water flowing channel can not only save water, but also avoid secondary pollution and realize the automation of water storage and drainage.

[0305] The product of the embodiment realizes the retention and discharge of washing water through the rotation principle of the washing tub by arranging the water passing hole on the end cover of the inner drum of the drum washing machine, and the product has the advantages of fast drainage, good dewatering, water saving and environmental protection.

[0306] The water flowing pipeline of the product of the embodiment is in the shape of a circular arc, and the water flowing pipeline can ensure that the liquid level in the washing tub exceeds the height of the liquid level in the washing tub in the washing state when the two ports of the water flowing pipeline are in a parallel state.

[0307] The washing tub of the product of the embodiment can realize the cleaning-free function of the drum washing machine when the washing tub is applied to the drum washing machine, and the structure is simple and the performance is reliable.

[0308] Specifically, the washing tub of the embodiment is combined with Figures 1 to 55 The washing tub of the embodiment is combined with

[0309] A washing tub manufactured by using the flow water channel 3 of the above-mentioned no-clean washing tub, one end of the flow water channel 3 is connected with the inside of the washing tub 1 through the water draining structure 4, the other end is connected with the outside of the washing tub 1 through the water throwing structure 5, the rotating direction of the washing tub 1 is the circumferential direction from the starting point of the water draining structure 4 to the ending point of the water throwing structure 5 in the washing condition; the rotating direction of the washing tub 1 is the circumferential direction from the starting point of the water throwing structure 5 to the ending point of the water draining structure 4 in the dehydrating or water draining condition; the front end of the cylinder wall of the washing tub 1 is connected with the washing tub front plate 6, the middle part of the outside of the washing tub front plate 6 is provided with the tub cover 10; the tub cover 10 is connected with the washing tub front plate 6 through the hinge or the buckle; the middle part of the tub cover 10 is provided with the water inlet 28 for facilitating water inlet; it further comprises the water throwing rib 12, the water throwing rib 12 is arranged in the spiral shape relative to the central shaft of the washing tub.

[0310] A washing machine provided with the above-mentioned washing tub, it further comprises the box 21 and the door cover 24, the outer tub 20 is arranged concentrically with the washing tub 1, the washing tub 1 is connected with the speed reduction clutch through the flange 9, the bottom of the outer tub 20 is provided with the water draining port 25, the water draining port 25 is connected with the water draining pipe 26, the water draining pipe 26 extends out through the box 21; it further comprises the water inlet channel, the water inlet channel is provided with the rapid heating device; the water inlet channel comprises the water inlet hose 30 and the water spraying hose 22, the water inlet hose 30 is arranged at the top inside of the box 21, one end of the water inlet hose 30 is installed on the box 21 through the water inlet valve 19, the other end of the water inlet hose 30 is communicated with the washing box 29, the washing box 29 is installed on the box 21, the washing box 29 and the water spraying hose 22 are communicated, the water spraying hose 22 is arranged at the front inside of the box 21, the water spraying hose 22 is communicated with the water spraying nozzle 23, the water spraying nozzle 23 is arranged on the door cover 24, the water sprayed from the water spraying nozzle 23 can enter the washing tub 1 through the water inlet 28 of the tub cover 10; the water spraying nozzle 23 and the water spraying hose 22 are connected through the flexible joint.

[0311] The side wall and the front plate of the washing tub are each provided with a group of flow water channels, one end of the pipeline of the flow water channels is communicated with the inside of the washing tub, the other end of the pipeline is opened between the washing tub and the outer tub. The flow water channels are in the shape of circular arc, the included angle between the two ends relative to the center of the washing tub is greater than 100 degrees, which ensures that the liquid level in the washing tub exceeds the washing state when the two ports of the flow water channels are parallel. When the washing tub rotates against the opening direction of the pipeline, the liquid in the washing tub is discharged along the pipeline, which is for the water draining and dehydrating process, when the washing tub rotates along the opening direction of the pipeline, the water in the washing tub will not be discharged, which is for the washing state.

[0312] The features and structures in the embodiments of the present application can be combined with the structures and features of other embodiments, but must be based on the realization of a person of ordinary skill in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application.

[0313] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above-mentioned technical content with slight changes or equivalent embodiments without departing from the technical solution of the present application. Any simple modification, equivalent change and modification of the above embodiments based on the technical essence of the present application are still within the scope of the present application.

Claims

1. A washing tub with a water flow passage, characterized in that, The washing tub is provided with a drainage hole, and the rest of the positions are not provided with holes. The drainage hole is communicated with a water channel groove. The water channel groove is formed on the outer wall of the washing tub. A cover plate is arranged on the water channel groove. The water channel groove and the cover plate form a drainage cavity. A water throwing hole is formed at the end of the drainage cavity. The drainage hole, the water channel groove, the cover plate and the water throwing hole form a water flowing pipeline. The included angle between the two ends of the water flowing pipeline and the central axis of the washing tub in the circular projection formed by the central axis of the washing tub as the center is α. The included angle between the two ends of the washing water surface in the washing tub and the central axis of the washing tub in the circular projection of the washing tub during the washing of the washing machine is β. α >= β. The washing tub comprises a washing tub front plate, a washing tub circumference and a washing tub back plate. A circumferential water channel groove is arranged on the washing tub circumference. The circumferential water channel groove is pressed inward or outward on the washing tub circumference. A front plate water channel groove is arranged on the washing tub front plate. The front plate water channel groove is pressed inward or outward on the washing tub front plate. A back plate water channel groove is arranged on the washing tub back plate. The back plate water channel groove is pressed inward or outward on the washing tub back plate.

2. A washing tub with a water flow channel according to claim 1, characterized in that, The washing tub circumference is provided with a circumferential drainage hole. The circumferential drainage hole is communicated with the circumferential water channel groove. A circumferential cover plate is arranged on the circumferential water channel groove. The circumferential cover plate and the circumferential water channel groove form a circumferential drainage cavity. A circumferential water throwing hole is formed at the other end of the circumferential drainage cavity. The circumferential drainage hole, the circumferential water channel groove, the circumferential cover plate and the circumferential water throwing hole form a tub water flowing pipeline.

3. A washing tub with a water flow channel according to claim 2, characterized in that, The included angle between the two ends of the circumferential water channel groove and the center of the washing tub is 90 degrees to 360 degrees.

4. A washing tub with a water flow channel according to claim 3, characterized in that, A plurality of tub water flowing pipelines are arranged on the circumference with the central axis of the washing tub as the center. The plurality of tub water flowing pipelines arranged on the same circumference form a set of water flowing pipeline devices.

5. A washing tub with a water flow channel according to claim 4, characterized in that, The tub water flowing pipeline is arranged in a gradually shrinking manner from the circumferential drainage hole to the circumferential water throwing hole.

6. A washing tub with a water flow channel according to claim 5, characterized in that, A front plate drainage hole is arranged on the washing tub front plate. The front plate water channel groove is communicated with the front plate drainage hole. A front plate cover plate is arranged on the front plate water channel groove. The front plate water channel groove and the front plate cover plate form a front plate drainage cavity. A front plate water throwing hole is formed at the other end of the front plate drainage cavity. The front plate drainage hole, the front plate water channel groove, the front plate cover plate and the front plate water throwing hole form a front plate water flowing pipeline. A back plate drainage hole is arranged on the washing tub back plate. The back plate water channel groove is communicated with the back plate drainage hole. A back plate cover plate is arranged on the back plate water channel groove. The back plate water channel groove and the back plate cover plate form a back plate drainage cavity. A back plate water throwing hole is formed at the other end of the back plate drainage cavity. The back plate drainage hole, the back plate water channel groove, the back plate cover plate and the back plate water throwing hole form a back plate water flowing pipeline.

7. A washing machine having a washing tub with a water flow channel, characterized in that, A washing tub with a water flowing channel as claimed in any one of claims 1 to 6 is arranged on the outside of the washing tub. The water throwing structure of the water flowing pipeline is arranged between the washing tub and the outer tub. The bottom of the outer tub is provided with a drainage port. A drainage pipe is connected to the drainage port.

8. A method of draining a drum washing machine, characterized in that: The washing machine comprises a washing tub with a water flow channel as claimed in any one of claims 4-6, and a washing machine comprising the same, wherein the washing machine rotates in one direction or rotates back and forth in two directions in the washing mode, and rotates in one direction in the draining mode and the dehydrating mode; when the washing machine rotates in one direction in the washing mode, the clockwise direction formed from the connection between the water flow channel and the washing tub to the end of the water flow channel is the same as the clockwise direction of the rotation of the washing tub in the washing mode, and the direction of the rotation of the washing tub in the washing mode is opposite to the direction of the rotation of the washing tub in the draining mode, and the direction of the rotation of the washing tub in the draining mode is the same as the direction of the rotation of the washing tub in the dehydrating mode; when the washing machine rotates back and forth in two directions in the washing mode, the clockwise direction formed from the connection between the water flow channel and the washing tub to the end of the water flow channel is opposite to the clockwise direction of the rotation of the washing tub in the draining mode and the dehydrating mode.

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