CN214938555U - Washing machine - Google Patents

Abstract

The utility model provides a washing machine, which comprises a detergent box for limiting a containing space, a detergent drawer which is arranged in the containing space and is used for placing a detergent bottle, a liquid storage box for limiting a liquid storage cavity, and a liquid level detection unit; the liquid storage cavity is connected with the liquid pump, and the liquid level detection unit comprises a float trigger positioned in the liquid storage cavity and a liquid level sensing device arranged at the bottom of the detergent box; when the liquid storage box is connected with the liquid pump, the float trigger corresponds to the liquid level sensing device; the float trigger moves along with the liquid level of the detergent under the action of the buoyancy of the detergent to move into or out of the sensing range of the liquid level sensing device; the utility model can prompt the user to change the detergent bottle when the liquid level reaches the set low liquid level; in addition, the detergent is stored in the detergent bottle, so that the detergent is prevented from being dispersed in all places of the detergent drawer, the detergent drawer is kept clean and tidy, and the detergent drawer does not need to be cleaned.

Description

Washing machine

Technical Field

The utility model belongs to the technical field of domestic washing machine, especially, relate to a washing machine.

Background

At present, in the existing washing machine using a detergent with a bottled structure, a detergent bottle is fixed on a drawer and is not provided with a detection structure, so that when the detergent in the detergent bottle is about to run out, a user cannot be prompted to supplement or replace the detergent bottle in time, and the user cannot wash clothes.

In view of this, the present invention is proposed.

Disclosure of Invention

The utility model provides a to foretell technical problem, provide a washing machine.

In order to achieve the above object, the utility model discloses a technical scheme be:

a washing machine, comprising:

a detergent box defining an accommodating space;

the detergent drawer is movably arranged in the accommodating space and used for placing a detergent bottle;

a liquid storage box defining a liquid storage cavity communicated with the detergent bottle; the liquid storage cavity is connected with a liquid pump; after the detergent in the detergent bottle is injected into the liquid storage cavity, the detergent is pumped to the washing machine by the liquid pump;

a liquid level detection unit, comprising:

the float trigger is positioned in the liquid storage cavity;

the liquid level sensing device is arranged at the bottom of the detergent box;

when the liquid storage box is connected with the liquid pump, the float trigger corresponds to the liquid level sensing device in position; the float trigger moves along with the liquid level of the detergent under the action of the buoyancy of the detergent to move into or out of the sensing range of the liquid level sensing device.

As an implementation mode, the bottom of the liquid storage cavity is provided with a guide rod;

the float trigger is sleeved on the guide rod and can move along the guide rod;

along the central shaft of the guide rod, the float trigger corresponds to the liquid level sensing unit in position.

As an implementation mode, the liquid storage box comprises a liquid storage box body and a liquid storage box cover, wherein the liquid storage box body and the liquid storage box cover are matched to define a liquid storage cavity;

and the liquid storage box cover is provided with a liquid pumping butt joint pipe which is in butt joint with a liquid pumping pipe of the liquid pumping pump.

As an implementation manner, the liquid storage box cover is provided with a liquid pumping pipe communicated with the liquid pumping butt joint pipe, and the liquid pumping pipe extends to the bottom of the liquid storage cavity.

As an implementable mode, the liquid storage box body comprises a limiting plate far away from the liquid drawing pump, a liquid inlet butt joint port in sealed butt joint with the bottle mouth of the detergent bottle is arranged on the limiting plate, and the liquid inlet butt joint port is located in an area, close to the bottom of the liquid storage cavity, on the limiting plate.

As a practical way, the detergent drawer includes a containing groove and a connecting groove which are connected; the detergent bottle is arranged in the containing groove, and the liquid storage box is arranged in the connecting groove.

As an implementation mode, a rear end plate is arranged at the end part of the accommodating groove close to the connecting groove, a communicating port for communicating the accommodating groove and the connecting groove is arranged on the rear end plate, and the communicating port corresponds to a liquid inlet butt joint port on the liquid storage box;

when the limiting plate of the liquid storage box is matched with the rear end plate of the containing groove, the bottle mouth of the detergent bottle penetrates through the communicating port to be in sealed butt joint with the liquid inlet butt joint port.

As a practical manner, the groove depth of the connecting groove is greater than the groove depth of the accommodating groove.

As a practical manner, the detergent box includes a water inlet box, a water dividing plate; the water diversion plate and the water inlet box jointly define a containing space for containing the liquid storage box and the detergent drawer.

As an implementation manner, the detergent box comprises a water diversion plate cover, the water diversion plate and the water diversion plate cover jointly define a water inlet cavity connected with a water inlet pump, and the water inlet cavity is communicated with the accommodating space.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

the utility model provides a washing machine, which comprises a detergent box for limiting a containing space, a detergent drawer movably arranged in the containing space and used for placing a detergent bottle, a liquid storage box for limiting a liquid storage cavity communicated with the detergent bottle, and a liquid level detection unit; the liquid storage cavity is connected with the liquid pump, and the liquid level detection unit comprises a float trigger positioned in the liquid storage cavity and a liquid level sensing device arranged at the bottom of the detergent box; when the liquid storage box is connected with the liquid pump, the float trigger corresponds to the liquid level sensing device in position; the float trigger moves along with the liquid level of the detergent under the action of the buoyancy of the detergent to move into or out of the sensing range of the liquid level sensing device; the utility model is provided with a float trigger in the liquid storage box, and a liquid level sensing device is arranged at the bottom of the water inlet box, so as to prompt a user to change a detergent bottle when the liquid level reaches a set low liquid level; in addition, the detergent is stored in the detergent bottle, so that the detergent is prevented from being dispersed in all places of the detergent drawer, the detergent drawer is kept clean and tidy, and the detergent drawer does not need to be cleaned.

Drawings

FIG. 1 is an exploded view of a detergent box assembly of a washing machine according to the present invention;

FIG. 2 is a sectional view of the detergent drawer of the washing machine according to the present invention when closed;

FIG. 3 is an assembly view of the detergent drawer, the detergent bottle and the liquid storage box of the washing machine of the present invention;

FIG. 4 is an assembly view of the detergent drawer and the liquid storage box of the washing machine of the present invention;

FIG. 5 is an assembly view of the detergent drawer and the liquid storage box of the washing machine of the present invention from another view angle;

FIG. 6 is a schematic structural view of the washing machine according to the present invention with the liquid storage box separated from the detergent bottle;

FIG. 7 is a schematic view of the detergent drawer of the washing machine of the present invention;

FIG. 8 is a schematic structural view of a liquid storage box of the washing machine of the present invention;

FIG. 9 is a schematic structural view of another perspective of the liquid storage box of the washing machine of the present invention;

FIG. 10 is an exploded view of the liquid storage box of the washing machine of the present invention;

fig. 11 is a schematic structural view of the water inlet box of the washing machine of the present invention;

fig. 12 is a schematic structural view of a detergent bottle of the washing machine of the present invention;

fig. 13 is a sectional view of the driving device of the washing machine of the present invention driving the liquid storage box to move to the limit position;

fig. 14 is a schematic view of the driving device of the washing machine of the present invention driving the liquid storage box to move to the limit position;

fig. 15 is a sectional view of the liquid storage box of the washing machine of the present invention moving to abut against the third stopper;

fig. 16 is a schematic view of the liquid storage box of the washing machine of the present invention moving to abut against the third limiting block;

FIG. 17 is a sectional view of the detergent drawer of the washing machine according to the present invention moved to the extreme position;

fig. 18 is a schematic view of the detergent drawer of the washing machine according to the present invention moving to the limit position. In the above figures: a detergent box 1; a water diversion plate cover 10; an accommodation space 11; a handle 12; a water inlet cavity 13; a water inlet pump 14; a liquid-drawing pump 15; a rack 16; a chucking plate 17; a gear 18; a detergent bottle 19; a lock hook 20; a lock 21; a detergent drawer 2; a containing groove 3; a front end plate 31; a rear end plate 32; a communication port 33; a connecting groove 4; a guide groove 40; a limit notch 41; a first stopper 42; a second stopper 43; a liquid storage box 5; a motor 50; a liquid storage box body 6; a reservoir chamber 60; a guide rod 61; a float trigger 62; a position limiting plate 63; an inlet docking port 64; a guide plate 65; a first stopper 66; a rear plate 67; a liquid storage box cover 7; a tapping butt pipe 71; a liquid suction pipe 72; a water inlet box 8; a third stopper 80; a liquid level sensing device 81; a water diversion plate 9; a guide groove 91; a guide rail 92.

Detailed Description

The present invention is further described below in conjunction with specific embodiments so that those skilled in the art may better understand the present invention and can implement the present invention, but the scope of the present invention is not limited to the scope described in the detailed description. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

It should be noted that the description relating to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The washing machine comprises a machine body and a detergent box assembly arranged on the machine body, as shown in fig. 1-18, the detergent box assembly comprises a detergent box 1, a detergent drawer 2 and a liquid storage box 5 which are movably arranged in the detergent box 1, a driving device, a liquid level detection unit and a liquid pump 15.

The detergent box 1 comprises a water inlet box 8, a water distribution plate 9 and a water distribution plate cover 10, wherein the water distribution plate 9 is installed on the water inlet box 8, and the water inlet box 8 and the water distribution plate cover 10 are respectively positioned on two opposite sides of the water distribution plate 9. The water diversion plate 9 and the water inlet box 8 jointly define a containing space 11 which is open at one end and is used for containing the liquid storage box 5 and the detergent drawer 2. The water diversion plate 9 and the water diversion plate cover 10 together define a water inlet cavity 13, the water inlet cavity 13 is communicated with the accommodating space 11, and the water inlet cavity 13 is connected with a water inlet pump 14 to convey water to the water inlet cavity 13. The water diversion plate 9 is provided with a diversion channel communicated with the accommodating space 11 so as to guide the entering water flow into the accommodating space 11 and discharge the water flow into the washing machine through the detergent box 1. Here, an open end of the detergent box 1 is referred to as a front end, and an end opposite to the open end is referred to as a rear end.

As shown in fig. 3-12, the liquid storage box 5 includes a liquid storage box body 6 and a liquid storage box cover 7, and the liquid storage box body 6 and the liquid storage box cover 7 cooperate to define a liquid storage cavity 60. The liquid pump 15 comprises a pump suction pipe, the liquid storage cavity 60 is connected with the pump suction pipe of the liquid pump 15, and the liquid pump 15 pumps out the detergent in the liquid storage box 5 and puts the detergent into the washing machine.

The bottom of the liquid storage box body 6 is provided with a guide rod 61 vertical to the liquid storage box body. The liquid level detection unit comprises a float trigger 62 and a liquid level sensing device 81. Wherein, the float trigger 62 is sleeved on the guide rod 61 and can move along the guide rod 61; the liquid level sensing device 81 is disposed on the water inlet box 8 of the detergent box 1, and the liquid level sensing device 81 corresponds to the position of the float trigger 62. With the amount of the detergent in the liquid storage box 5, the float trigger 62 is positioned at different positions of the guide rod 61 under the buoyancy of the detergent, so that the distance between the float trigger 62 and the liquid level sensing device 81 is different.

When enough detergent is contained in the liquid storage box 5, and the distance between the float trigger 62 and the liquid level sensing device 81 is greater than the sensing distance of the liquid level sensing device 81, the float trigger 62 is positioned outside the sensing range of the liquid level sensing device 81, and the liquid level sensing device 81 cannot sense the float trigger 62;

when detergent is absent in the liquid storage box 5, and the distance between the float trigger 62 and the liquid level sensing device 81 is smaller than the sensing distance of the liquid level sensing device 81, the float trigger 62 is in the sensing range of the liquid level sensing device 81, and the liquid level sensing device 81 senses the float trigger 62. The corresponding relation exists between the sufficient detergent content in the liquid storage box 5 and the situation that the float trigger 62 is positioned outside the sensing range of the liquid level sensing device 81, and the corresponding relation exists between the small detergent content in the liquid storage box 5 and the situation that the float trigger 62 is positioned in the sensing range of the liquid level sensing device 81; that is, the detergent content in the liquid storage box 5 and the position of the float trigger 62 relative to the sensing range of the liquid level sensing device 81 have a corresponding relationship, and whether the detergent is lacked in the liquid storage box 5 or not is represented by sensing the float trigger 62 through the liquid level sensing device 81 according to the corresponding relationship, and a prompt is sent out in time.

The liquid storage box cover 7 is provided with a liquid pumping butt joint pipe 71 matched with the liquid pumping pump 15 and a liquid pumping pipe 72 communicated with the liquid pumping butt joint pipe 71, and the liquid pumping pipe 72 extends to the bottom of the liquid storage cavity 60. The liquid pumping butt joint pipe 71 is arranged on the liquid storage box cover 7, and the liquid pumping pipe 72 extends to the bottom of the liquid storage cavity 60, so that on one hand, effective liquid pumping is ensured, and the residue of the detergent in the liquid storage box 5 is reduced; on the other hand, the detergent can be effectively prevented from overflowing from the liquid pumping butt joint pipe 71 arranged at the top of the liquid storage box 5; when the liquid storage box 5 moves, the liquid pumping butt joint pipe 71 positioned at the top of the liquid storage box is separated from a pump suction pipe of the liquid pumping pump 15, so that detergent is effectively prevented from being omitted to the water inlet box 8, the detergent can be rinsed cleanly, and waste of the detergent can be avoided. Stock solution box body 6 is equipped with the feed liquor on the limiting plate 63 including keeping away from the limiting plate 63 of drawing liquid pump 15 and being close to the back plate 67 of drawing liquid pump 15, and feed liquor is to interface 64, and the feed liquor is to interface 64 and locates the region that is close to stock solution chamber 60 bottom to reduce the resistance that the detergent got into stock solution box 5, thereby make things convenient for the detergent to get into stock solution box 5 fast.

In addition, the two opposite side walls of the end, close to the liquid storage box cover 7, of the liquid storage box body 6 are provided with guide plates 65, and the bottom of the liquid storage box body 6 is provided with a first limiting block 66.

The detergent drawer 2 comprises a containing groove 3 for installing the detergent bottle 19 and a connecting groove 4 with one end connected with the groove end of the containing groove 3; the receiving groove 3 and the connecting groove 4 extend in the same direction. The connecting groove 4 and the accommodating groove 3 share a groove wall, and the groove depth of the connecting groove 4 is greater than that of the accommodating groove 3. The two ends of the containing groove 3 are provided with a front end plate 31 and a rear end plate 32 which are connected with the groove wall and the groove bottom of the containing groove. The rear end plate 32 is located on the side of the bottom plate of the receiving groove 3 away from the bottom plate of the connecting groove 4, and separates the receiving groove 3 and the connecting groove 4. The front end of the containing groove 3 is provided with a handle 12 fixedly connected with the containing groove.

Specifically, the connecting groove 4 is provided with a guide groove 40 along the cavity wall in the front-rear direction, and a guide plate 65 on the liquid storage box 5 is installed in the guide groove 40 and can reciprocate along the guide groove 40. A limiting notch 41 which penetrates through the connecting groove 4 and is close to one end of the accommodating groove 3 is formed in the bottom wall of the connecting groove 4; the first position-limiting portion 42 is formed at one end of the position-limiting notch 41 away from the accommodating groove 3.

The detergent bottle 19 is installed in the accommodating groove 3, the liquid storage box 5 is installed in the connecting groove 4, and the bottom wall of the liquid storage box body 6 is matched with the bottom wall of the connecting groove 4. The first limiting block 66 on the bottom wall of the liquid storage box 5 is arranged in the limiting notch 41. When the liquid storage box 5 and the detergent drawer 2 move close to each other along the extending direction of the guide groove 40, the liquid storage box 5 moves to a limit position when being butted with the detergent bottle 19 in the containing groove 3; when the liquid storage box 5 and the detergent drawer 2 move away from each other, the first limiting part 42 is gradually close to the first limiting block 66, and the first limiting block 66 of the liquid storage box 5 is abutted against the first limiting part 42 of the accommodating groove 3 and then moves to the limiting position.

The rear end plate 32 of the containing groove 3 is provided with a communication port 33 for communicating the containing groove 3 and the connecting groove 4, and the communication port 33 corresponds to the liquid inlet butt joint port 64 on the liquid storage box 5. When the detergent drawer 2 is closed, the opening of the detergent bottle 19 passes through the communication port 33 and is in sealed butt joint with the liquid inlet butt joint port 64 on the liquid storage box 5.

The top of the groove wall of the connecting groove 4 is provided with a second limiting block 43, one side of the water diversion plate 9 close to the detergent drawer 2 is provided with a second limiting part, the second limiting part is arranged at the position of the water diversion plate 9 close to the front end side, so that when the detergent drawer 2 moves to a specific position, the second limiting block 43 is matched with the second limiting part, and the second limiting part applies resistance force for blocking the movement of the second limiting block 43 to the movement of the second limiting block. When the force applied to the second stopper 43 is greater than a certain value, the second stopper 43 moves along the second stopper portion against the resistance.

A push switch is arranged between the bottom plate of the detergent drawer 2 and the bottom wall of the water inlet box 8 and comprises a lock hook 20 and a lock catch 21; the locking state and the unlocking state between the lock hook 20 and the lock catch 21 are changed by single pushing; the push-spring switch is a conventional push-spring switch, and the structure and the operation principle thereof are well known to those skilled in the art, and are not described herein again. One of the detergent drawer 2 and the water inlet box 8 is provided with a lock hook 20, and the other is provided with a lock catch 21; when the detergent drawer 2 is closed, the lock hook 20 corresponds to the lock catch 21 for matching, so as to realize the push control. In this embodiment, the locking hook 20 is installed on the bottom wall of the detergent drawer 2, and the locking buckle 21 is installed on the bottom wall of the water inlet box 8. Other types of push-spring switches with the same principle, such as a beetle switch, can also be selected.

The bottom wall of the water inlet box 8 is provided with a third limiting block 80, and the top end face of the third limiting block 80 is positioned between the plane where the groove bottom of the accommodating groove 3 and the plane where the groove bottom of the connecting groove 4 are located. The liquid storage box 5 moves forwards, and when the limiting plate 63 on the liquid storage box abuts against the third limiting block 80 on the bottom wall of the water inlet box 8, the liquid storage box 5 stops moving.

The driving device is arranged on the water distribution plate 9. The driving means is configured to drive the liquid storage cartridge 5 from the closed position to the open position using elastic energy. In this embodiment, the driving means includes a motor 50, a gear 18 driven by the motor 50, and a rack 16 engaged with the gear 18; the rack 16 is arranged on the water distribution plate 9 and arranged along the front-back direction;

the water diversion plate 9 is formed with a long and narrow guide groove 91, and the guide groove 91 extends in the front-rear direction. The rear end of the guide groove 91 is provided with a through hole penetrating the water distribution plate 9 in the up-down direction to form a guide rail 92. The rack 16 is fitted in the guide groove 91 and freely movable in the front-rear direction within the limit distance of the guide rail 92. The above guide groove 91 can ensure that the rack 16 moves back and forth smoothly without deviating from the movement track. The motor 50 is fixed to one side of the guide groove 91, and its output shaft is connected to the gear 18. The motor 50 rotates the gear 18, and the gear 18 moves the rack 16 along the guide groove 91.

The rack 16 has a free end and a catching end along the length direction, wherein the free end is located at the front side of the catching end. Wherein, the clamping end is used for clamping the rear plate 67 of the liquid storage box 5. That is, the clamping end of the rack 16 and the back plate 67 of the liquid storage box 5 can be connected together in a clamping manner. In short, the rack 16 is mounted on the water diversion plate 9, and the rear end of the rack 16 passes through the water diversion plate 9 and is connected with the rear plate 67 of the liquid storage box 5 in a clamping manner. Specifically, in this embodiment, be equipped with downwardly extending's cardboard 17 at the joint end department of rack 16, cardboard 17 passes water diversion plate 9 and blocks in the rear side of stock solution box 5 to when making rack 16 move forward, can drive stock solution box 5 move forward.

As shown in fig. 2, when the detergent drawer 2 is located at the closed position, the detergent drawer 2 is received in the detergent box 1, the front end of the detergent drawer 2 is adjacent to the front end of the detergent box 1, the rear end of the detergent drawer 2 is adjacent to the rear end of the detergent box 1, and the liquid storage box 5 is received in the connecting groove 4; the rack 16 is movably arranged in the water distribution plate 9 and is clamped with the liquid storage box 5, the lock hook 20 and the lock catch 21 of the push spring switch are locked, and the detergent drawer 2 is closed.

The handle 12 of the detergent drawer 2 is pushed, the lock hook 20 and the lock catch 21 of the push-spring switch are opened, the motor 50 works and drives the gear 18 to rotate, and the gear 18 drives the rack 16 to move; the rack 16 drives the liquid storage box 5 connected with the rack to move forwards through the clamping plate 17, and the liquid storage box 5 drives the detergent drawer 2 to move forwards, so that the liquid storage box 5 is driven to be separated from the liquid pump 15, and the liquid storage box 5 and the detergent drawer 2 move forwards together.

As shown in fig. 13-14, when the second stopper 43 of the detergent drawer 2 abuts against the second stopper of the water diversion plate 9, the motor 50 stops working. At this time, the detergent drawer 2 is manually pulled to overcome the resistance of the second limiting part to the second limiting block 43, so that the detergent drawer 2 continues to move forward and drives the liquid storage box 5 to move forward.

As shown in fig. 15-16, when the limiting plate 63 of the liquid storage box 5 abuts against the third limiting block 80 of the water inlet box 8, the liquid storage box 5 stops moving, the third limiting block 80 on the water inlet box 8 enters the limiting notch 41 at the bottom of the detergent box 1, the detergent drawer 2 continues moving forward, and the detergent bottle 19 is separated from the liquid storage box 5.

As shown in fig. 17 to 18, when the first position-limiting part 42 of the detergent drawer 2 abuts against the first position-limiting part 66 of the liquid storage box 5, the detergent drawer 2 is opened to a position at a limit position, and the detergent bottle 19 is taken out for replacement. In this embodiment, the detergent is stored in the detergent bottle 19, and the detergent is prevented from being dispersed in the detergent drawer 2, so that the detergent drawer 2 is kept clean and tidy, and the detergent drawer 2 does not need to be cleaned.

Correspondingly, the process of closing the detergent drawer 2 from the open extreme position is the reverse of the above process and will not be described again here.

It should be noted that the washing machine to which the detergent box assembly of the present invention is applicable may be a drum washing machine, a pulsator washing machine, or other types of washing machines.

The utility model provides a washing machine, which comprises a detergent box for limiting a containing space, a detergent drawer movably arranged in the containing space and used for placing a detergent bottle, a liquid storage box for limiting a liquid storage cavity communicated with the detergent bottle, and a liquid level detection unit; the liquid storage cavity is connected with the liquid pump, and the liquid level detection unit comprises a float trigger positioned in the liquid storage cavity and a liquid level sensing device arranged at the bottom of the detergent box; when the liquid storage box is connected with the liquid pump, the float trigger corresponds to the liquid level sensing device; the float trigger moves along with the liquid level of the detergent under the action of the buoyancy of the detergent to move into or out of the sensing range of the liquid level sensing device; the utility model is provided with a float trigger in the liquid storage box, and a liquid level sensing device is arranged at the bottom of the water inlet box, so as to prompt a user to change a detergent bottle when the liquid level reaches a set low liquid level; in addition, the detergent is stored in the detergent bottle, so that the detergent is prevented from being dispersed in all places of the detergent drawer, the detergent drawer is kept clean and tidy, and the detergent drawer does not need to be cleaned.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims (10)

1. Washing machine, characterized in that it comprises:

a detergent box defining an accommodating space;

the detergent drawer is movably arranged in the accommodating space and used for placing a detergent bottle;

a liquid storage box defining a liquid storage cavity communicated with the detergent bottle; the liquid storage cavity is connected with a liquid pump; after the detergent in the detergent bottle is injected into the liquid storage cavity, the detergent is pumped to the washing machine by the liquid pump;

a liquid level detection unit, comprising:

the float trigger is positioned in the liquid storage cavity;

the liquid level sensing device is arranged at the bottom of the detergent box;

when the liquid storage box is connected with the liquid pump, the float trigger corresponds to the liquid level sensing device in position; the float trigger moves along with the liquid level of the detergent under the action of the buoyancy of the detergent to move into or out of the sensing range of the liquid level sensing device.

2. The washing machine as claimed in claim 1, wherein: a guide rod is arranged at the bottom of the liquid storage cavity;

the float trigger is sleeved on the guide rod and can move along the guide rod;

along the central shaft of the guide rod, the float trigger corresponds to the liquid level sensing unit in position.

3. A washing machine as claimed in claim 1 or 2, characterized in that: the liquid storage box comprises a liquid storage box body and a liquid storage box cover, and the liquid storage box body and the liquid storage box cover are matched to define a liquid storage cavity;

and the liquid storage box cover is provided with a liquid pumping butt joint pipe which is in butt joint with a liquid pumping pipe of the liquid pumping pump.

4. A washing machine as claimed in claim 3, wherein: the liquid storage box cover is provided with a liquid pumping pipe communicated with the liquid pumping butt joint pipe, and the liquid pumping pipe extends to the bottom of the liquid storage cavity.

5. A washing machine as claimed in claim 3, wherein: the liquid storage box body comprises a limiting plate far away from the liquid drawing pump, a liquid inlet butt joint port in sealed butt joint with a bottle opening of the detergent bottle is arranged on the limiting plate, and the liquid inlet butt joint port is located in an area, close to the bottom of the liquid storage cavity, on the limiting plate.

6. The washing machine as claimed in claim 5, wherein: the detergent drawer comprises a containing groove and a connecting groove which are connected; the detergent bottle is arranged in the containing groove, and the liquid storage box is arranged in the connecting groove.

7. The washing machine as claimed in claim 6, wherein: the end part of the accommodating groove close to the connecting groove is provided with a rear end plate, the rear end plate is provided with a communicating port for communicating the accommodating groove and the connecting groove, and the communicating port corresponds to a liquid inlet butt joint port on the liquid storage box;

when the limiting plate of the liquid storage box is matched with the rear end plate of the containing groove, the bottle mouth of the detergent bottle penetrates through the communicating port to be in sealed butt joint with the liquid inlet butt joint port.

8. The washing machine as claimed in claim 6, wherein: the groove depth of the connecting groove is larger than that of the accommodating groove.

9. A washing machine as claimed in claim 1 or 2, characterized in that: the detergent box comprises a water inlet box and a water distribution plate; the water diversion plate and the water inlet box jointly define a containing space for containing the liquid storage box and the detergent drawer.

10. A washing machine as claimed in claim 9, wherein: the detergent box comprises a water distribution plate cover, a water inlet cavity connected with a water inlet pump is defined by the water distribution plate and the water distribution plate cover, and the water inlet cavity is communicated with the accommodating space.

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