A metered liquid feeding structure for a fully automatic drum washing machine

Abstract

This utility model discloses a quantitative liquid inlet structure for a fully automatic drum washing machine, including a detergent dispenser and a dispenser box located inside the detergent dispenser. It also includes a piston pump assembly connected to the detergent dispenser. The piston pump assembly includes an inlet valve, a drain valve, and a pumping mechanism. The dispenser box includes a storage chamber. The inlet valve is connected to the storage chamber, and the outlet end of the drain valve corresponds to the detergent dispenser. The pumping mechanism causes the washing liquid in the storage chamber to flow in from the inlet valve and then out from the drain valve back to the detergent dispenser. A liquid level sensor is installed in the storage chamber to sense changes in the liquid level of the washing liquid. This utility model features precise quantitative liquid inlet, a simple and reliable structure, and the ability to monitor liquid level changes accurately in real time.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a quantitative liquid inlet structure for a fully automatic drum washing machine. Background Technology

[0002] Modern fully automatic front-loading washing machines generally pursue higher levels of intelligence, convenience, and washing performance. Traditional washing machines usually require users to manually add the appropriate amount of detergent to the detergent dispenser before each wash. This method is cumbersome and prone to adding too much or too little detergent. Too little detergent affects the washing effect, while too much detergent not only causes waste and increases costs but also leads to incomplete rinsing, and the residue may damage clothing fibers and irritate the skin. Furthermore, existing washing machines with automatic dispensing functions lack real-time monitoring of the liquid level in the storage chamber and cannot accurately sense the remaining liquid level. Utility Model Content

[0003] The purpose of this invention is to provide a quantitative liquid inlet structure for a fully automatic drum washing machine, which has the effects of accurate liquid inlet quantity, simple and reliable structure, and real-time accurate monitoring of liquid level changes.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a quantitative liquid inlet structure for a fully automatic drum washing machine, including a detergent box and a dispenser box located inside the detergent box, and a piston pump assembly connected to the detergent box. The piston pump assembly includes an inlet valve, a drain valve, and a pumping mechanism. The dispenser box includes a storage chamber. The inlet valve is connected to the storage chamber. The outlet end of the drain valve corresponds to the detergent box. The pumping mechanism causes the washing liquid in the storage chamber to form a flow trajectory from being pumped in through the inlet valve and then pumped out through the drain valve to the detergent box. A liquid level sensing device is provided in the storage chamber to sense changes in the liquid level of the washing liquid in the storage chamber.

[0005] By adopting the above technical solution, the detergent can be dispensed in a quantitative manner; the liquid level sensor can detect the liquid level in the storage chamber and remind the user to replenish the detergent in time.

[0006] A further feature of this invention is that the pumping mechanism includes a pump cylinder, a piston rod, and a driving mechanism. The driving mechanism drives the piston rod to perform regular reciprocating motion, so that the washing liquid in the storage chamber is evenly pumped into the pump cylinder from the inlet valve and then evenly pumped out of the detergent box from the outlet valve.

[0007] A further feature of this invention is that the liquid level sensing device is a float, the float contains a magnet, and a Hall sensor is disposed below the liquid storage chamber. When the float approaches the Hall sensor, the Hall sensor generates a Hall effect signal.

[0008] By adopting the above technical solution, users are reminded that the liquid level in the storage chamber is too low and needs to be replenished in time. The design structure is simple and easy to implement.

[0009] A further feature of this invention is that the float has a hollowed-out portion, and a vertically upward-extending limiting post is provided at the bottom of the liquid storage cavity. The limiting post passes through the hollowed-out portion to constrain the displacement path of the float along the radial direction of the limiting post.

[0010] By adopting the above technical solution, the float is prevented from coming off the rails, and the disorderly movement of the floats prevents the liquid level sensor from going out of control, thus ensuring the normal operation of the liquid level sensor function.

[0011] A further feature of this invention is that an upper cover is provided above the detergent box, and the upper cover has an inlet channel that connects the inlet valve and the storage chamber, as well as a drain channel that aligns the drain valve with the bottom of the detergent box.

[0012] A further feature of this invention is that the dispenser box includes a first cavity and a second cavity independent of the liquid storage cavity. The first cavity is located above the second cavity. The first cavity has a protruding water outlet that communicates with the second cavity. The water outlet end of the water outlet is adjacent to the top wall of the first cavity. The dispenser box is provided with a dispenser box cover. The dispenser box cover has a mating head corresponding to the position of the water outlet. The mating head is spaced out from the water outlet. The second cavity has a downward-sloping ramp. The end of the ramp has a cavity outlet. The cavity outlet connects the fluids of the first cavity and the second cavity to the detergent box.

[0013] By adopting the above technical solution, the application time of fabric softener is delayed, ensuring that the fabric softener works at the right time and leaves no residue.

[0014] A further feature of this invention is that it includes an inlet valve and a dual-inlet pipe connected to the inlet valve. The upper cover has an inlet channel that connects to the dual-inlet pipe. A water distribution plate that covers the upper cover is provided above the distributor cover. A partition plate located between the dual-inlet pipe is provided on the water distribution plate. The partition plate divides the water flowing into the water distribution plate into displacement paths to the first cavity and the second cavity.

[0015] By adopting the above technical solution, the water storage time of the first chamber is reduced, ensuring that the fabric softener in the first chamber works at the right time.

[0016] A further feature of this invention is that at least one of the water inlet channels is provided with an overflow pipe, the other end of which is connected to the washing machine.

[0017] By adopting the above technical solution and setting an overflow pipe, excessive water in the first chamber can be prevented from overflowing from the detergent dispenser, causing flooding and safety issues, thus ensuring the normal operation of the washing machine.

[0018] A further feature of this invention is that the detergent box is provided with a drain outlet, and the detergent box is provided with a guide plate corresponding to the outlet end of the drain channel, the guide plate guiding the detergent discharged through the drain channel to the drain outlet.

[0019] By adopting the above technical solution, detergent can be quickly flowed into the washing machine.

[0020] A further feature of this invention is that the detergent dispenser is provided with several sets of flow-dispersing elements, which cause the liquid inside the detergent dispenser to surge.

[0021] By adopting the above technical solution, the water flow is made to surge up and down, which allows the detergent / fabricator / laundry powder to be dispersed and dissolved in the water more quickly and thoroughly, avoiding detergent clumping and residue, ensuring that the effective ingredients are evenly distributed in the water, and improving the cleaning and care effect.

[0022] A further feature of this invention is that the aerodynamic component is composed of alternating arrangements of a first group of aerodynamic components and a second group of aerodynamic components with different heights. The first group of aerodynamic components has a first uniform height, and the adjacent second group of aerodynamic components has a second uniform height that is lower than the first uniform height. Furthermore, the height of the protrusions within each group is consistent.

[0023] By adopting the above technical solutions, detergents / fabric softeners / laundry powder can dissolve in water faster and more evenly, maximizing cleaning and care effects.

[0024] In summary, this utility model has the following beneficial effects:

[0025] 1. A piston pump assembly is adopted, and the drive mechanism drives the piston push rod to make regular reciprocating motion, so that the washing liquid in the storage chamber forms a flow trajectory from the inlet valve into the pump cylinder, and then from the outlet valve to the detergent box, thereby realizing the quantitative dispensing of washing liquid.

[0026] 2. A float made of lightweight materials and magnets is used, and a Hall sensor is installed below the liquid storage chamber. When the float approaches the Hall sensor, the magnetic field strength detected by the Hall sensor gradually increases. Based on the detected magnetic field strength, the remaining amount of washing liquid in the liquid storage chamber can be determined, reminding the user that the liquid level in the liquid storage chamber is too low and needs to be replenished in time. This design is simple in structure and easy to implement. Attached Figure Description

[0027] Figure 1 This is a perspective view of the present invention.

[0028] Figure 2 This is an exploded view of Embodiment 1 of this utility model.

[0029] Figure 3 This is a cross-sectional view of Embodiment 1 of the present invention. Figure 1 .

[0030] Figure 4 This is a cross-sectional view of Embodiment 1 of the present invention. Figure 2 .

[0031] Figure 5 This is a schematic diagram of the dispenser box cover of this utility model.

[0032] Figure 6 This is a schematic diagram of the piston pump assembly of this utility model.

[0033] Figure 7 This is a cross-sectional view of the piston pump assembly of this utility model.

[0034] Figure 8 This is a schematic diagram of the detergent box in Embodiment 2 of this utility model.

[0035] In the diagram: 1. Detergent dispenser; 11. Drain outlet; 12. Baffle plate; 13. Baffle element; 131. First set of baffle elements; 132. Second set of baffle elements; 2. Dispenser box; 21. Liquid storage chamber; 211. Float; 212. Magnet; 213. Hall sensor; 214. Hollow section; 215. Limiting post; 22. First cavity; 221. Water outlet; 23. Second cavity; 231. Ramp; 232. Outlet. 31. Inlet valve; 32. Drain valve; 33. Pump cylinder; 34. Piston push rod; 35. Drive mechanism; 4. Upper cover; 41. Inlet channel; 42. Drain channel; 43. Water inlet channel; 5. Distributor cover; 51. Fitting head; 52. Limiting head; 53. Outlet conduit; 54. Cross valve; 6. Water inlet valve; 61. Dual-way water inlet pipe; 62. Overflow pipe; 7. Divider plate; 71. Partition plate; 72. Drain hole. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings.

[0037] Example 1:

[0038] A quantitative liquid inlet structure for a fully automatic drum washing machine, such as Figure 1-7As shown, the device includes a detergent dispenser 1 and a dispenser box 2 located within the detergent dispenser 1. It also includes a piston pump assembly connected to the detergent dispenser 1. The piston pump assembly includes an inlet valve 31, a drain valve 32, and a pumping mechanism. The dispenser box 2 includes a storage chamber 21. The inlet valve 31 is connected to the storage chamber 21. The outlet end of the drain valve 32 corresponds to the detergent dispenser 1. The pumping mechanism causes the detergent in the storage chamber 21 to form a flow trajectory from being pumped in through the inlet valve 31 and then pumped out through the drain valve 32 back to the detergent dispenser 1. A liquid level sensor is installed in the storage chamber 21 to sense changes in the liquid level of the detergent in the storage chamber 21. The pumping mechanism includes a pump cylinder 33, a piston rod 34, and a drive mechanism 35. The drive mechanism 35 drives the piston rod 34 to perform regular reciprocating motion, so that the washing liquid in the storage chamber 21 is evenly pumped into the pump cylinder 33 from the inlet valve 31, and then evenly pumped out from the outlet valve 32 to the detergent box 1. The detergent dispenser 1 has a hollow structure. The dispenser box 2 is mounted on the detergent dispenser 1, with a gap between the bottom of the dispenser box 2 and the detergent dispenser 1, allowing water to flow through. The piston pump assembly is fixedly mounted on the side wall of the detergent dispenser 1. The drive mechanism 35 is a motor. The motor drives the piston push rod 34 to move away from the inlet valve 31 / outlet valve 32. The piston push rod 34 moves backward and generates negative pressure in the pump cylinder 33. Under the action of negative pressure, the inlet valve 31 opens, while the outlet valve 32 remains closed. Under the action of negative pressure, the detergent in the storage chamber 21 is drawn into the pump cylinder 33 through the open inlet valve 31. The volume of detergent in the pump cylinder 33 at this time is the fixed volume that the pump cylinder 33 can draw in during a single stroke. This volume is determined by the pump cylinder 33. The inner diameter and stroke length of the piston push rod 34 are fixed values. Then, the motor reverses, driving the piston push rod 34 to move towards the inlet valve 31 / outlet valve 32. The piston push rod 34 moves forward to compress the washing liquid in the pump cylinder 33. The inlet valve 31 closes under pressure to prevent the washing liquid from flowing back into the storage chamber 21. The outlet valve 32 opens under pressure, and the washing liquid in the pump cylinder 33 is pushed out by the piston push rod 34 and enters the detergent box 1 through the opened outlet valve 32. At this time, all the liquid in the pump cylinder 33 is discharged, and the discharged volume is equal to the sucked volume, which is a fixed value. This achieves quantitative dispensing of washing liquid. The liquid level sensor senses the liquid level in the storage chamber 21 and reminds the user to replenish the washing liquid in time.

[0039] Preferably, the liquid level sensing device is a float 211, which is made of lightweight material and a magnet 212. A Hall sensor 213 is provided below the liquid storage chamber 21. When the float 211 approaches the Hall sensor 213, the Hall sensor 213 generates a Hall effect signal. Magnet 212 is clamped in a lightweight material, and Hall sensor 213 is fixed to the bottom of liquid storage chamber 21, corresponding to the position of float 211. When liquid storage chamber 21 is filled with washing liquid, float 211 floats under the action of buoyancy. At this time, the magnetic field strength sensed by Hall sensor 213 is weak or out of the sensing range of magnetic field. As the number of uses increases, the liquid level in liquid storage chamber 21 gradually drops, and float 211 gets closer and closer to Hall sensor 213. At this time, the magnetic field strength detected by Hall sensor 213 gradually becomes stronger. Based on the detected magnetic field strength, the remaining amount of washing liquid in liquid storage chamber 21 can be determined. Hall sensor 213 transmits an electrical signal to the circuit controlling audio equipment to realize sound output, reminding the user that the liquid level in liquid storage chamber 21 is too low and needs to be replenished in time. This design is simple in structure and easy to implement.

[0040] Preferably, the float 211 has a hollow portion 214, and a vertically upward-extending limiting post 215 is provided at the bottom of the liquid storage cavity 21. The limiting post 215 passes through the hollow portion 214, constraining the displacement path of the float 211 along the radial direction of the limiting post 215. The Hall sensor 213 corresponds to the bottom of the limiting post 215, and a limiting head 52 corresponding to the position of the limiting post 215 is provided on the dispenser cover 5. The limiting head 52 is located above the limiting post 215. The limiting head 52 and the limiting post 215 together constrain the axial displacement path of the float 211 along the limiting post 215. When washing liquid is added to the liquid storage cavity 21, the float 211 rises along the limiting post 215 under the action of buoyancy until it abuts against the limiting head 52, preventing the float 211 from falling out. Uncontrolled movement of the float 211 causes the liquid level sensing to malfunction, ensuring the normal operation of the liquid level sensing function.

[0041] Preferably, the detergent dispenser 1 is provided with an upper cover 4. The upper cover 4 has an inlet channel 41 that connects the inlet valve 31 and the liquid storage chamber 21, and a drain channel 42 that corresponds to the bottom of the detergent dispenser 1. The upper cover 4 is snapped into the detergent dispenser 1. The detergent liquid in the liquid storage chamber 21 enters the inlet valve 31 through the inlet channel 41, and then drains into the detergent dispenser 1 through the drain valve 32.

[0042] Preferably, the dispenser box 2 further includes a first cavity 22 and a second cavity 23 independent of the liquid storage cavity 21. The first cavity 22 is located above the second cavity 23. The first cavity 22 has a protruding outlet 221 that communicates with the second cavity 23. The outlet end of the outlet 221 is adjacent to the top wall of the first cavity 22. The dispenser box 2 is provided with a dispenser box cover 5. The dispenser box cover 5 has a mating head 51 corresponding to the position of the outlet 221. The mating head 51 is spaced out from the outlet 221. The second cavity 23 is provided with a downward inclined slope 231. The end of the slope 231 is provided with an outlet 232. The outlet 232 communicates the fluid from the first cavity 22 and the second cavity 23 to the detergent box 1. Water flows through the distributor cover 5 to simultaneously fill the first cavity 22 and the second cavity 23. Due to the ramp 231 on the second cavity 23, the water mixed with the detergent inside and flows directly from the outlet 232 to the detergent dispenser 1, then into the washing machine through the outlet on the detergent dispenser 1. The first cavity 22 is a closed cavity. Water is added to the first cavity 22 and mixes with the fabric softener inside, gradually accumulating. The water flows in through the gap between the fitting head 51 and the outlet head 221. When the water accumulates above the outlet end face of the outlet head 221, the water mixed with the fabric softener begins to flow into the second cavity 23 along the outlet head 221. Because the first cavity 22 is relatively closed, when the water flows down past the highest point, a negative pressure is generated in the outlet head 221, forming a siphon effect. The detergent flows out from the outlet 232 of the second cavity 23 to the detergent box 1, and then flows into the washing machine through the outlet on the detergent box 1. This design delays the time of adding the fabric softener, ensuring that the fabric softener works at the right time and without residue. The dispenser box cover 5 is provided with a liquid outlet tube 53. One end of the liquid outlet tube 53 is connected to the liquid inlet channel 41, and the other end is provided with a cross valve 54 extending to near the bottom of the liquid storage cavity 21. The cross valve 54 is composed of an inverted rigid diaphragm. When there is no external force, the diaphragm elastically closes to form a tight seal. When squeezed, the hydraulic pressure inside the liquid storage cavity 21 increases, and the washing liquid pushes the diaphragm to flip outward. The cross gap expands to form a channel, and the liquid is ejected from the cross valve 54. After the squeezing stops, the diaphragm elastically rebounds and closes, and the channel is closed. It has the effect of precise volume control and leak-proof sealing.

[0043] Preferably, the device also includes a water inlet valve 6 and a dual-way water inlet pipe 61 connected to the water inlet valve 6. The upper cover 4 has a water inlet channel 43 connecting the dual-way water inlet pipe 61. A water distribution plate 7 is provided above the distributor cover 5, which covers the upper cover 4. A partition 71 is provided on the water distribution plate 7 between the dual-way water inlet pipes 61. The partition 71 divides the water flowing into the water distribution plate 7 into displacement paths to the first cavity 22 and the second cavity 23. Water in the dual-way water inlet pipes 61 flows into the water distribution plate 7 through the water inlet channel 43. One water inlet pipe flows directly into the first cavity 22 under the guidance of the partition 71, while the other water inlet pipe moves along the direction of the second cavity 23 under the action of the partition 71. A drain hole 72 leading to the first cavity 22 is provided in this direction, reducing the water storage time in the first cavity 22 and ensuring that the fabric softener in the first cavity 22 functions at the correct time.

[0044] Preferably, at least one of the dual-inlet water pipes 61 is provided with an overflow pipe 62, the other end of which is connected to the washing machine. By providing the overflow pipe 62, excessive water accumulation in the first cavity 22 is prevented from overflowing from the detergent dispenser 1, causing flooding and safety issues, thus ensuring the normal operation of the washing machine.

[0045] Preferably, the detergent dispenser 1 is provided with a drain outlet 11, and the detergent dispenser 1 is provided with a guide plate 12 corresponding to the outlet end of the drain channel 42. The guide plate 12 guides the washing liquid discharged through the drain channel 42 to the drain outlet 11. Two guide plates 12 are configured, spaced apart and protruding from each other on the bottom surface of the detergent dispenser 1. The outlet end of the drain channel 42 is directly opposite the space between the guide plates 12. The washing liquid discharged through the outlet end of the drain channel 42 falls into the space between the guide plates 12, and under the guidance of the guide plates 12, flows through the gap between the detergent dispenser 1 and the dispenser box 2 to the drain outlet 11. Through the above design, the detergent flows into the washing machine quickly.

[0046] Example 2:

[0047] A quantitative liquid inlet structure for a fully automatic drum washing machine, such as Figure 8As shown, the difference between this embodiment and specific embodiment one is that: the detergent box 1 is provided with several sets of baffles 13, which cause the liquid in the detergent box 1 to surge. The baffles 13 protrude from the bottom surface of the detergent box 1. They can be trapezoidal protrusions, spherical protrusions, or baffles. They can be any shape of protruding component that can change the liquid flow trajectory. This application does not limit the specific shape of the baffles 13. When the water flows through the baffles 13, it slows down and rolls over the baffles 13 due to the obstruction of the baffles 13. Since several sets of baffles 13 are arranged in the direction of water flow, the water flow presents a surging pattern of up and down, which makes the detergent / fabric / laundry powder disperse and dissolve in the water faster and more thoroughly, avoiding detergent clumping and residue, ensuring that the effective ingredients are evenly distributed in the water, and improving the cleaning and care effect.

[0048] Preferably, the flow-dispersing element 13 is composed of an alternating arrangement of a first group of flow-dispersing elements 131 and a second group of flow-dispersing elements 132 with different heights. The first group of flow-dispersing elements 131 has a first uniform height, and the adjacent second group of flow-dispersing elements 132 has a second uniform height lower than the first uniform height, and the height of the protrusions within each group is consistent. The first group of flow-dispersing elements 131 and the second group of flow-dispersing elements 132 are arranged along the direction of water flow. After passing through the first group of flow-dispersing elements 131 and the second group of flow-dispersing elements 132 with different heights, they present a wave-like surging shape, forming periodic disturbances, which allows the detergent / fabricator / laundry powder to dissolve in the water faster and more evenly, maximizing the cleaning and care effects.

[0049] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A dosing structure of a full-automatic drum washing machine, comprising a detergent box (1) and a dispenser box (2) located in the detergent box (1), characterized in that: It also includes a piston pump assembly connected to the detergent box (1), the piston pump assembly including an inlet valve (31), a drain valve (32) and a pumping mechanism, the dispenser box (2) including a storage chamber (21), the inlet valve (31) being connected to the storage chamber (21), the outlet end of the drain valve (32) corresponding to the detergent box (1), the pumping mechanism causing the detergent in the storage chamber (21) to form a flow trajectory from the inlet valve (31) to the drain valve (32) and then from the drain valve (32) to the detergent box (1), the storage chamber (21) being provided with a liquid level sensing device, the liquid level sensing device being used to sense the liquid level change of the detergent in the storage chamber (21).

2. The liquid dosing structure of a full-automatic drum washing machine according to claim 1, characterized in that: The pumping mechanism includes a pump cylinder (33), a piston rod (34), and a drive mechanism (35). The drive mechanism (35) drives the piston rod (34) to perform regular reciprocating motion, so that the washing liquid in the storage chamber (21) is evenly pumped into the pump cylinder (33) from the inlet valve (31) and then evenly pumped out from the outlet valve (32) to the detergent box (1).

3. The liquid-quantitying structure of a full-automatic drum washing machine according to claim 1, characterized in that: The liquid level sensing device is a float (211), and a magnet (212) is provided inside the float (211). A Hall sensor (213) is provided below the liquid storage chamber (21). When the float (211) approaches the Hall sensor (213), the Hall sensor (213) generates a Hall effect signal.

4. The liquid dosing structure of the full-automatic drum washing machine according to claim 3, characterized in that: The float (211) has a hollow part (214), and the bottom of the liquid storage cavity (21) is provided with a vertically upward extending limiting post (215). The limiting post (215) passes through the hollow part (214) and constrains the displacement path of the float (211) along the radial direction of the limiting post (215).

5. The liquid-quantitying structure of a full-automatic drum washing machine according to claim 1, characterized in that: The detergent box (1) is provided with an upper cover (4), and the upper cover (4) has an inlet channel (41) that connects the inlet valve (31) and the liquid storage chamber (21), and a drain channel (42) that corresponds to the bottom of the detergent box (1).

6. The quantitative liquid feeding structure of a fully automatic drum washing machine according to claim 5, characterized in that: The dispenser box (2) further includes a first cavity (22) and a second cavity (23) independent of the liquid storage cavity (21). The first cavity (22) is located above the second cavity (23). The first cavity (22) has a protruding outlet (221) that communicates with the second cavity (23). The outlet end of the outlet (221) is adjacent to the top wall of the first cavity (22). The dispenser box (2) is provided with a dispenser box cover (5). The dispenser cover (5) has a mating head (51) corresponding to the position of the water outlet (221). The mating head (51) is spaced out from the water outlet (221). The second cavity (23) has a downward inclined slope (231). The end of the slope (231) has an outlet (232). The outlet (232) connects the fluid of the first cavity (22) and the second cavity (23) to the detergent box (1).

7. The liquid dosing structure of a full-automatic drum washing machine according to claim 6, characterized in that: It also includes a water inlet valve (6) and a dual-way water inlet pipe (61) connected to the water inlet valve (6). The upper cover (4) is provided with a water inlet channel (43) that connects to the dual-way water inlet pipe (61). A water distribution plate (7) is provided above the distributor cover (5) and covers the upper cover (4). A partition (71) is provided on the water distribution plate (7) between the dual-way water inlet pipe (61). The partition (71) divides the water flowing into the water distribution plate (7) into displacement paths to the first cavity (22) and the second cavity (23).

8. The liquid dosing structure of a full-automatic drum washing machine according to claim 7, characterized in that: At least one of the water inlet channels (43) is provided with an overflow pipe (62), the other end of which is connected to the washing machine.

9. The liquid-quantitying structure of a full-automatic drum washing machine according to claim 5, wherein: The detergent box (1) is provided with a drain outlet (11) and a guide plate (12) corresponding to the outlet end of the drain channel (42) is provided on the detergent box (1). The guide plate (12) guides the detergent discharged through the drain channel (42) to the drain outlet (11).

10. The liquid-quantitying structure of a full-automatic drum washing machine according to claim 1, characterized in that: The detergent box (1) is provided with several sets of baffles (13), which cause the liquid in the detergent box (1) to surge.

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