A washing machine water box flow guide structure and a washing machine

Abstract

The application discloses a washing machine water box flow guide structure and a washing machine. The washing machine water box flow guide structure comprises a water box, a siphon pipe arranged at the bottom of the water box and connected with the water box and a washing machine inner barrel, and a flow guide part arranged at a water outlet of the siphon pipe and used for changing the water outlet direction of the washing agent flowing out of the siphon pipe. The flow guide part is arranged to extend downward from the end surface of the water outlet of the siphon pipe and gradually approach the axis of the washing machine inner barrel. The flow guide part is arranged at the water outlet of the siphon pipe, so that the water outlet direction of the washing agent flowing along the siphon pipe is changed, the washing agent is added to the position close to the axis of the washing machine inner barrel, and the rotation of the washing machine inner barrel is matched, so that the diffusion efficiency is effectively improved.

Description

Technical Field

[0001] This invention belongs to the field of clothing processing, specifically, it relates to a water tank guide structure for a washing machine and a washing machine. Background Technology

[0002] To achieve more accurate and convenient detergent dispensing, existing washing machines have abandoned the traditional manual method and incorporated a dispensing device that automatically adds detergent or liquid into the washing machine drum. Current washing machines with automatic dispensing functions generally use a liquid collection tank connected to the washing drum via a dispensing pump, driven mechanically, which is relatively complex to control.

[0003] Therefore, an automatic liquid dispensing device using a siphon method was designed. However, the gap between the siphon tube and the siphon cap in the siphon structure is small. When dispensing relatively viscous detergents, the siphon structure will become clogged due to insufficient dilution, resulting in poor dispensing effect or even failure to dispense liquid normally.

[0004] In addition, because the traditional siphon structure is positioned with the water box at the corner of the control panel, the detergent dispensed from the siphon pipe into the inner tub of the washing machine can only fall at the corner of the inner tub, resulting in low detergent diffusion efficiency and consequently low mixing efficiency with the clothes to be washed.

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

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a water box guiding structure for a washing machine. By setting a guiding part at the outlet of the siphon tube, the direction of the detergent flow along the siphon tube is changed, and the detergent is added to the axis position close to the inner drum of the washing machine, thereby improving the diffusion efficiency.

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

[0008] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is: to provide a water tank guide structure for a washing machine, comprising,

[0009] The water tank has a siphon pipe at the bottom that connects the water tank to the inner tub of the washing machine;

[0010] A flow guide section is provided at the outlet of the siphon tube to change the direction of the detergent flow from the siphon tube.

[0011] Furthermore, the guide section extends obliquely downward from the outlet end face of the siphon tube and is gradually positioned close to the axis of the inner tub of the washing machine.

[0012] Furthermore, the orthogonal projection of the guide portion along the axial direction of the siphon tube occupies at least one-third of the area of ​​the siphon tube opening.

[0013] Furthermore, the flow guiding surface of the flow guiding part smoothly transitions with the inner surface of the siphon tube, and the flow guiding surface of the flow guiding part is a curved surface that gradually concaves towards the center.

[0014] Furthermore, including,

[0015] A control panel base, wherein a liquid storage tank is provided at the corner of the control panel base, and the liquid storage tank is provided with a water inlet for connecting the inner tub of the washing machine to the liquid storage tank.

[0016] A blocking part is provided in the liquid storage tank and opposite to the water inlet to block the washing liquid entering through the water inlet.

[0017] Furthermore, it also includes,

[0018] A water tank cover has a dispensing port, and the periphery of the dispensing port extends vertically downward to form a blocking part, forming a buffer zone between the dispensing port and the wall of the storage tank.

[0019] The buffer zone is connected to the discharge port, and the water inlet is located in the buffer zone.

[0020] Furthermore, the horizontal projection of the inlet onto the blocking portion is completely covered by the blocking portion.

[0021] Furthermore, the liquid storage tank is provided with a boss, and there is a height difference between the upper end face of the boss and the bottom of the liquid storage tank. The water inlet is provided on the boss.

[0022] Furthermore, the blocking part extends downward to contact the bottom of the liquid storage tank, and a liquid passage hole is provided on the side wall of the blocking part away from the corner of the control panel.

[0023] Furthermore, the opening of the liquid passage hole is designed to gradually narrow in the direction from the inlet of the water box cover to the liquid inlet of the storage tank.

[0024] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0025] (1) The present invention provides a guide section at the outlet of the siphon tube. The guide section extends downward at an angle from the outlet end face of the siphon tube and gradually approaches the axis of the inner tub of the washing machine. This changes the direction of the detergent flow along the siphon tube and adds the detergent to the axis position close to the inner tub of the washing machine. With the rotation of the inner tub of the washing machine, the diffusion efficiency of the detergent is improved, thereby ensuring the mixing efficiency with the clothes to be washed.

[0026] (2) In this invention, the orthogonal projection of the guide portion along the axial direction of the siphon tube occupies at least one-third of the area of ​​the siphon tube opening. This allows the flow direction of the detergent to be deflected by the obstruction effect of the guide portion. Thus, while obstructing the flow of detergent, it effectively ensures that the direction of detergent delivery into the washing machine drum is changed.

[0027] (3) The present invention forms a blocking part extending vertically downward around the dispensing port of the water box cover. A buffer zone is formed between the blocking part and the tank wall of the liquid storage tank. When the fabric softener in the buffer zone is mixed with the washing water flowing in from the inlet, the fabric softener will not be directly dispersed by the impact force of the washing water, resulting in incomplete mixing and dilution of the fabric softener. Moreover, the washing water flowing in from the inlet can be depressurized. After impacting the blocking part, the washing water will be turned back. The turning back action will be fully mixed with the fabric softener in the buffer zone, thus fully mixing the fabric softener.

[0028] (4) The present invention provides a boss in the liquid storage tank, and there is a height difference between the upper end face of the boss and the bottom of the liquid storage tank. The water inlet is set on the boss, which ensures that the washing water entering from the water inlet can fully impact the blocking part to generate backflow, so that it can dynamically mix with the fabric softener and dilute the fabric softener. Moreover, the washing water impacting the blocking part will have a falling height, so that the falling potential energy can slightly impact the surface of the fabric softener, so that the impact when mixing with the fabric softener is not completely horizontal, thus accelerating the mixing and dilution efficiency.

[0029] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0030] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0031] Figure 1 This is a front view of the washing machine control panel base of the present invention;

[0032] Figure 2 This is a top view of the washing machine control panel base of the present invention;

[0033] Figure 3 This is a schematic diagram of the liquid storage tank of the washing machine control panel base of the present invention;

[0034] Figure 4 This is a cross-sectional schematic diagram of the washing machine control panel base of the present invention;

[0035] Figure 5 yes Figure 4 A magnified structural diagram at point A;

[0036] Figure 6 This is a front view of the washing machine water tank cover of the present invention;

[0037] Figure 7 This is a top view of the washing machine water tank cover of the present invention.

[0038] In the diagram: 1. Control panel base; 2. Water box cover; 21. Inlet; 22. Blocking part; 23. Liquid passage hole; 24. Siphon cap; 3. Liquid storage tank; 31. Water inlet; 32. Siphon tube; 321. Reinforcing rib; 322. Flow guide part; 33. Overflow outlet; 34. Boss; 35. Settling tank.

[0039] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0041] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] like Figures 1 to 7 As shown, the washing machine water box guide structure of the present invention includes a water box and a guide part 322.

[0044] The bottom of the water box is provided with a siphon pipe 32 that connects the water box and the inner tub of the washing machine.

[0045] The guide section 322 is provided at the outlet of the siphon tube 32 and is used to change the direction of the detergent flowing out of the siphon tube 32.

[0046] This invention includes a vertically oriented siphon pipe 32 at the bottom of the water tank of a washing machine, which connects the inside of the water tank to the inner tub of the washing machine. A guide section 322 is connected to the outlet of the siphon pipe 32. This guide section 322 changes the vertical flow direction of the detergent flowing into the siphon pipe 32. Since the water tank is typically located at the four corners of the washing machine, this design avoids the vertically flowing detergent being limited to a single corner, which would increase the difficulty and efficiency of distributing detergent from the corners to all parts of the inner tub.

[0047] In addition, by using the guide section 322 to change the direction of detergent dispensing, the dispensing point of the detergent can be changed, allowing the detergent to flow quickly to various positions in the inner drum of the washing machine, thereby improving the diffusion efficiency.

[0048] Furthermore, the guide section 322 extends obliquely downward from the outlet end face of the siphon pipe 32 and is gradually positioned close to the axis of the inner tub of the washing machine.

[0049] In this invention, one end of the guide portion 322 extends downward at a gradually inclined angle on the end face of the water outlet of the siphon pipe 32, gradually approaching the axis of the inner tub of the washing machine. Because the guide portion 322, inclined towards the axis of the inner tub of the washing machine, is provided at the water outlet of the siphon pipe 32, the detergent flowing vertically down from the siphon pipe 32 can be deflected when passing through the guide portion 322.

[0050] Since the guide plate 322 is inclined toward the axis of the inner drum of the washing machine, the detergent flowing through it is directed toward the center of the inner drum, thereby dispersing the detergent from the center of the inner drum to various directions, improving the fullness and efficiency of contact between the detergent and the clothes in the inner drum.

[0051] On the other hand, slowing down the flow rate of detergent from the siphon tube 32, in conjunction with the rotation of the inner drum of the washing machine, allows the detergent to be dispensed at a rate that matches the rotation, gradually and fully contacting the clothes.

[0052] Furthermore, the orthographic projection of the guide portion 322 along the axial direction of the siphon tube 32 occupies at least one-third of the opening area of ​​the siphon tube 32.

[0053] This invention, with reference to Figure 4 as well as Figure 5 The siphon tube 32 is vertically arranged, and the guide section 322, projected vertically upwards, has a projected area that occupies at least one-third of the opening area of ​​the siphon tube 32. This ensures that the detergent flowing down from the siphon tube 32 is deflected by the guide section 322 after passing through it. This effectively obstructs the flow of detergent while changing its direction of dispensing into the washing machine drum.

[0054] Specifically, after the detergent flowing out of the siphon tube 32 passes through the guide section 322, the detergent falls in a parabolic trajectory towards the inner tub of the washing machine near its axis. Thus, the detergent falling near the axis of the inner tub, in conjunction with the rotation of the inner tub, can effectively diffuse the detergent to all directions of the inner tub, thereby ensuring sufficient contact and mixing with the clothes inside, and guaranteeing mixing efficiency.

[0055] It should be further noted that the vertically upward projected area of ​​the guide section 322 does not exceed three-fifths of the opening area of ​​the siphon tube 32. On the one hand, when the projected area of ​​the guide section 322 exceeds three-fifths of the opening area of ​​the siphon tube 32, the extension length of the guide section 322 becomes too long. This results in the detergent, after being guided by the guide section 322, forming a parabolic trajectory, and landing near the axis of the washing machine's inner tub, potentially at the corner on the opposite side of the inner tub. This is similar to the result of traditional washing machine water tray dispensing, affecting the efficiency of detergent mixing.

[0056] On the other hand, if the extension length of the guide section 322 is relatively long, it will increase the water pressure of the detergent flowing out of the outlet of the siphon tube 32. Due to the excessive flow resistance, it is not conducive to the normal dispensing of liquid into the water box, and it will cause the horizontal trajectory of the parabola to be too far away, thus deviating too much from the axis of the inner tub of the washing machine, affecting the diffusion of detergent to various positions around the inner tub of the washing machine.

[0057] Furthermore, the flow guiding surface of the flow guiding part 322 smoothly transitions to the inner surface of the siphon tube 32, and the flow guiding surface of the flow guiding part 322 is a curved surface that gradually concaves towards the center.

[0058] In this invention, the flow guide 322 and the siphon tube 32 are integrally formed, and the flow guide surface of the flow guide 322 is smoothly transitioned to the inner wall of the siphon tube 32, thus ensuring the smooth flow of detergent through the flow guide 322 and preventing detergent from shifting.

[0059] In addition, the flow guide surface of the flow guide 322 gradually concaves in the middle to form a curved surface, so that when the detergent passes through the flow guide surface of the flow guide 322, the detergent will gather in the middle and be discharged, thereby preventing the detergent from flowing too dispersed.

[0060] Furthermore, it includes a control panel base 1 and a blocking part 22.

[0061] A liquid storage tank 3 is provided at the corner of the control panel 1, and the inside of the liquid storage tank 3 is provided with a water inlet 31 for connecting the inner tub of the washing machine and the liquid storage tank 3.

[0062] The blocking part 22 is disposed in the liquid storage tank 3 and is opposite to the water inlet 31, and is used to block the washing liquid entering through the water inlet 31.

[0063] In this invention, taking a pulsator washing machine as an example, the control panel 1 at the top of the washing machine can be equipped with the aforementioned water box structure for adding liquid. Specifically, a liquid storage tank 3 is provided on the side wall of the corner of the control panel 1. The cross-section of the liquid storage tank 3 is triangular, preferably isosceles. The two walls of the liquid storage tank 3 are parallel to the edges of the control panel 1, and a water inlet 31 is provided near the vertex of the liquid storage tank 3.

[0064] Inside the liquid storage tank 3, at a position opposite to the water inlet 31, there is a barrier that can block the washing water from entering through the water inlet 31. This allows the washing water to flow back after impacting the barrier, thus mixing thoroughly with the detergent pre-stored in the liquid storage tank 3. This dilutes the viscous detergent, making it easier to add to the inner drum of the washing machine later.

[0065] Furthermore, it also includes a water tank lid 2.

[0066] The water box cover 2 has a dispensing port 21. The periphery of the dispensing port 21 extends vertically downward to form a blocking part 22, which forms a buffer zone with the tank wall of the liquid storage tank 3. The buffer zone is connected to the dispensing port 21, and the water inlet 31 is located in the buffer zone.

[0067] In this invention, fabric softener is added to a liquid storage tank 3 located at the corner of the control panel 1. Since the interior of the liquid storage tank 3 and the blocking part 22 together form a buffer zone, the fabric softener is added downwards from the dispensing port 21 and flows into the buffer zone. During the final rinse stage of the washing machine, the washing machine controls the water inlet 31 to add washing water to the liquid storage tank 3, which impacts the blocking part 22 and flows back to mix thoroughly with the fabric softener.

[0068] On the one hand, since a buffer zone is formed between the wall of the liquid storage tank 3 and the blocking part 22, the fabric softener in the buffer zone will not be directly dispersed by the impact force of the washing water flowing in from the water inlet 31 when it is mixed with the washing water in the buffer zone, resulting in incomplete mixing and dilution of the fabric softener. On the other hand, due to the blocking effect of the blocking part 22, the washing water flowing in from the water inlet 31 can be depressurized. After impacting the blocking part 22, the washing water will be turned back and flow back and forth between the blocking part 22 and the wall of the liquid storage tank 3. The backflow action will be fully mixed with the fabric softener in the buffer zone, thus ensuring that the fabric softener is fully mixed.

[0069] Specifically, the liquid storage tank 3 is also provided with a siphon tube 32, and the water box cover 2 is provided with a siphon cap 24, which covers the outside of the siphon tube 32;

[0070] The control panel 1 has a laundry dispensing port in its middle section, and the siphon tube 32 is positioned close to the laundry dispensing port in the control panel 1. Meanwhile, since the water inlet 31 is positioned near a corner of the control panel 1, the spacing between the siphon tube 32 and the water inlet 31 in the liquid storage tank 3 is maximized. This provides space for the fabric softener to mix with the washing water, while ensuring stable flow of the diluted fabric softener. The softener enters the gap between the siphon cap 24 and the siphon tube 32. As the liquid level rises to the siphon threshold height, the diluted fabric softener is drawn into the inner drum of the washing machine through the siphon tube 32, cooperating with the washing machine's rinsing program to ensure the softness of the washed clothes.

[0071] Specifically, the outer peripheral wall of the siphon tube 32 is provided with reinforcing ribs 321, and the reinforcing ribs 321 extend vertically upward along the bottom of the siphon tube 32. Furthermore, the lower end of the reinforcing ribs 321 is provided with supporting ribs extending radially along the siphon tube 32. This allows the siphon cap 24 to be supported when it is placed over the siphon tube 32, ensuring that liquid can flow from the outside of the siphon cap 24 into the gap between it and the siphon tube 32. This prevents the bottom end of the siphon cap 24 from coinciding with the side wall of the tray 1, thus avoiding blockage of the channel between the siphon cap 24 and the tray 1.

[0072] Furthermore, a settling tank 35 is provided at the bottom of the storage tank 3, around the periphery of the siphon pipe 32, and the extended sidewall of the settling tank 35 is curved, so as to guide the flow of fabric softener.

[0073] Furthermore, the horizontal projection of the inlet 31 onto the blocking part 22 is completely covered by the blocking part 22.

[0074] In this invention, after the water inlet 31 is horizontally projected onto the blocking part 22, its projection surface completely coincides with the side wall of the blocking part 22. When liquid is added to the storage tank 3 through the water inlet 31, the washing water can completely impact the side wall of the blocking part 22 after entering. This allows the incoming washing water to be depressurized, reducing the impact force, and then circulate back and forth in the buffer zone to mix with the fabric softener and dilute it. This ensures that the siphon tube 32 can normally draw fabric softener into the inner tub of the washing machine, avoiding blockage in the gap between the siphon cap 24 and the siphon tube 32.

[0075] In addition, it should be noted that the liquid storage tank 3 may contain not only fabric softener, but also one or more detergents, bactericides or deodorizers. This invention will use the addition of fabric softener as an example for explanation.

[0076] Furthermore, the liquid storage tank 3 is provided with a boss 34, and there is a height difference between the upper end face of the boss 34 and the bottom of the liquid storage tank 3. The water inlet 31 is provided on the boss 34.

[0077] In this invention, a boss 34 is provided in the liquid storage tank 3, and there is a height difference between the boss 34 and the bottom of the liquid storage tank 3. The water inlet 31 is integrally formed with the boss 34, or a water inlet pipe is provided, the upper end of the water inlet pipe passes through the surface of the boss 34, and the opening of the water inlet 31 of the water inlet pipe faces the blocking part 22. The lower end of the water inlet pipe is connected to the water inlet channel in the inner tub of the washing machine.

[0078] By setting the water inlet 31 on the protrusion 34, the height difference ensures that the water inlet 31 is completely opposite to the side wall of the blocking part 22. On the one hand, this ensures that the washing water entering from the water inlet 31 can fully impact the blocking part 22 and generate backflow, thereby dynamically and fully mixing with the fabric softener and diluting it. On the other hand, due to the height difference, the washing water impacting the blocking part 22 will have a falling height, which can use part of the falling potential energy to slightly impact the surface of the fabric softener, so that the impact when mixing with the fabric softener is not completely horizontal, thus accelerating the mixing and dilution efficiency.

[0079] Furthermore, the blocking part 22 extends downward to contact the bottom of the liquid storage tank 3, and the blocking part 22 is provided with a liquid passage hole 23 on the side wall of the corner away from the control panel 1.

[0080] In this invention, the bottom of the blocking part 22 is provided with a U-shaped sealing groove, and a sealing strip is embedded in the sealing groove to enhance the sealing performance of the blocking part 22 after contact with the liquid storage tank 3, thereby ensuring the formation of an annular buffer space. The blocking part 22 extends downward to contact the bottom of the liquid storage tank 3, and a liquid passage hole 23 is opened on the side wall away from the corner of the control panel 1. The added fabric softener flows completely into the water tank cover 2 through the dispensing port 21, and then flows from the liquid passage hole 23 at the bottom of the water tank cover 2 into the buffer space formed in the liquid storage tank 3. At this time, the buffer space is completely annular, thereby ensuring that when the washing water entering from the water inlet 31 impacts the fabric softener, it will not cause the liquid to flow upward and overflow from the water tank cover 2.

[0081] Furthermore, the liquid storage tank 3 is also provided with an overflow outlet 33 that penetrates the bottom of the tank and communicates with the inner tub of the washing machine. The overflow outlet 33 and the siphon pipe 32 are located on the same side of the liquid storage tank 3. Specifically, an overflow plate is provided around the overflow outlet 33, which, together with the tank wall of the liquid storage tank 3, encloses the overflow outlet 33. By providing an overflow outlet 33 in the liquid storage tank 3, during the washing process, if some washing water splashes onto the bottom of the control panel 1 due to the rotation of the inner tub or if the water level is too high due to a malfunction, it can be drained into the liquid storage tank 3 through the overflow outlet 33, preventing washing water from splashing out of the washing machine.

[0082] Furthermore, the opening of the liquid passage 23 gradually narrows in the direction from the inlet 21 of the water box cover 2 to the liquid storage tank 3.

[0083] This invention, by designing the opening of the liquid passage 23 to gradually narrow into a conical shape, effectively prevents fabric softener from flowing back into the water tank lid 2 when liquid is added to the storage tank 3 through the dispensing port 21, due to the narrowed opening design. Furthermore, when adding washing water to the storage tank 3 through the water inlet 31, the narrowed design of the liquid passage 23 also effectively reduces liquid overflow into the water tank lid 2 during the dynamic mixing process with the fabric softener.

[0084] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A washing machine with water box flow guide structure, characterized in that: include, Control panel base (1), a liquid storage tank (3) is provided at the corner of the control panel base (1), and the liquid storage tank (3) is provided with an inlet (31) for connecting the inner tub of the washing machine and the liquid storage tank (3); A blocking part (22) is provided in the liquid storage tank (3) and opposite to the water inlet (31) to block the washing liquid entering through the water inlet (31); Water tank cover (2), the water tank cover (2) has a dispensing port (21), the periphery of the dispensing port (21) extends vertically downward to form a blocking part (22), the blocking part extends downward to contact the bottom of the liquid storage tank (3), and forms an annular buffer zone between the blocking part (22) and the tank wall of the liquid storage tank (3); the blocking part (22) has a liquid passage hole (23) on the side wall away from the corner of the control panel (1); The buffer zone is connected to the discharge port (21) through the liquid hole (23), and the water inlet (31) is located in the buffer zone; the liquid storage tank (3) is provided with a boss (34), and there is a height difference between the upper end face of the boss (34) and the bottom of the liquid storage tank (3), and the water inlet (31) is set on the boss (34).

2. A laundry washing machine according to Claim 1, characterized in that: The horizontal projection of the inlet (31) onto the blocking part (22) is completely covered by the blocking part (22).

3. A laundry washing machine according to Claim 1, characterized in that: The liquid passage (23) is designed to gradually narrow in the direction from the inlet (21) of the water box cover (2) to the liquid storage tank (3).

4. A laundry washing machine according to any one of the preceding claims, characterized in that: include, The water box has a siphon pipe (32) at the bottom that connects the water box to the inner tub of the washing machine; A guide section (322) is provided at the outlet of the siphon pipe (32) to change the direction of the detergent flowing out of the siphon pipe (32).

5. A laundry washing machine according to Claim 4, characterized in that: The guide section (322) extends downward at an angle from the outlet end face of the siphon pipe (32) and is gradually positioned close to the axis of the inner tub of the washing machine.

6. A laundry washing machine according to Claim 5, characterized in that: The orthographic projection of the guide section (322) along the axial direction of the siphon (32) occupies at least one-third of the area of ​​the siphon (32) opening.

7. A laundry washing machine according to Claim 6, characterized in that: The guide surface of the guide section (322) smoothly transitions to the inner surface of the siphon tube (32), and the guide surface of the guide section (322) is a curved surface that gradually concaves towards the center.

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