CN211815035U

CN211815035U - Piston type automatic putting box for washing machine and washing machine

Info

Publication number: CN211815035U
Application number: CN201922245773.7U
Authority: CN
Inventors: 牟平; 朱甫金
Original assignee: Foshan Viomi Electrical Technology Co Ltd
Current assignee: Foshan Viomi Electrical Technology Co Ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-10-30
Anticipated expiration: 2029-12-11

Abstract

The utility model relates to a piston type automatic throwing box for a washing machine, which comprises an outer box, wherein a liquid outlet is arranged at the lowest point of the bottom of the outer box; the washing liquid box is used for containing washing liquid; the throwing pump comprises a liquid taking port communicated with the washing liquid box, a liquid injection port communicated with the outer box and a piston cavity communicated with the liquid taking port and the liquid injection port; the piston cavity is provided with a piston rod and a piston, the piston is matched with the inner wall of the piston cavity, the piston rod is provided with a spiral guide rail, and the piston is sleeved on the piston rod and can lift on the spiral guide rail to ensure accurate throwing; the throwing pump also comprises a driving assembly for driving the piston rod to move so as to drive the piston to lift, the volume of the piston cavity is changed, and the laundry detergent enters the outer box from the detergent box through the liquid taking port and the liquid injection port and is discharged from the liquid outlet. Still provide the washing machine who has above-mentioned input box simultaneously.

Description

Piston type automatic putting box for washing machine and washing machine

Technical Field

The utility model relates to a put in technical field for washing machine, concretely relates to automatic box and washing machine of putting in of piston for washing machine.

Background

At present, various drum washing machines are provided with a material box feeding device for adding washing powder, laundry detergent, softener, disinfectant and other washing liquids, and users select and feed the washing powder, the laundry detergent, the softener, the disinfectant and other washing liquids according to their own requirements. The drawer box subassembly that prior art provided usually relies on the automatic washing of washing powder, and softener, detergent rely on the siphon to put in to the bucket, all need the manual work to pull before doing washing at every turn and push away the washing liquid box and carry out the manual work and add, and the addition inaccurate can not reach good washing effect, and all need the manual work to put in at every turn. And the automatic feeding device is adopted in the prior art, and the adopted feeding pump cannot achieve real accurate feeding.

At present, the market urgently needs to start from the actual demands of customers, and users can put washing powder or put the washing powder into the washing machine according to the demands of the users, and can accurately control the putting amount of the washing powder, so that a good washing effect is achieved.

SUMMERY OF THE UTILITY MODEL

To the weak point of prior art, the utility model aims to provide an automatic box and washing machine of puting in of piston for washing machine.

The technical scheme of the utility model outlines as follows:

in one aspect, there is provided a piston-type automatic dispensing box for a washing machine, comprising:

a liquid outlet is arranged at the lowest point of the bottom of the outer box;

the washing liquid box is used for containing washing liquid;

the throwing pump comprises a liquid taking port communicated with the washing liquid box, a liquid injection port communicated with the outer box and a piston cavity communicated with the liquid taking port and the liquid injection port; the piston cavity is provided with a piston rod and a piston, the piston is matched with the inner wall of the piston cavity, the piston rod is provided with a spiral guide rail, and the piston is sleeved on the piston rod and can lift on the spiral guide rail; the throwing pump also comprises a driving assembly which is used for driving the piston rod to move so as to drive the piston to lift, the volume of the piston cavity is changed, and the laundry detergent enters the outer box from the washing liquid box through the liquid taking port and the liquid injection port and is discharged from the liquid outlet;

furthermore, the liquid taking port and the liquid injection port are both provided with one-way valves, when the feeding pump extracts the washing liquid in the washing liquid box, the liquid taking port is opened, and the liquid injection port is closed; when the dropping pump drops the washing liquid into the outer box, the liquid taking port is closed, and the liquid injection port is opened.

Preferably, the washing liquid box comprises a washing liquid box body and a washing liquid box cover.

Preferably, the piston cavity, the liquid taking port, the liquid injection port and the washing liquid box body are integrally formed.

Further, the piston cavity is arranged in the washing liquid box, and the liquid injection port is arranged on the outer wall of the bottom of the washing liquid box and communicated with the outer box; the liquid taking port is arranged on the inner wall of the bottom of the washing liquid box, so that washing liquid in the washing liquid box enters the piston cavity from the bottom of the washing liquid box; the piston cavity is far away from the end of the liquid injection port and is a piston cavity opening part, the piston rod extends out of the piston cavity opening part and extends out of the washing liquid box cover and is connected with a driving assembly arranged outside the washing liquid box.

Preferably, the mouth of the piston cavity is provided with a cap for sealing the piston cavity, and the piston rod extends out of the cap.

Furthermore, a driving assembly cavity which is sunken into the washing liquid box is arranged on the washing liquid box cover and used for accommodating the driving assembly.

Further, the driving assembly comprises a motor, a first gear connected with the motor, and a second gear connected with the piston rod, wherein the first gear is meshed with the second gear.

Preferably, the washing liquid box cover is provided with a liquid filling port and a liquid filling cover.

Preferably, the filling opening of the detergent box is provided with a filling prompting device.

Preferably, a liquid level sensor is arranged in the washing liquid box and used for detecting and feeding back the liquid level height of the washing liquid in the washing liquid box.

Further, the outer box has an accommodating space, and the washing liquid box is installed in the accommodating space and can slide in and out relative to the outer box.

Preferably, the inner side wall of the outer box is provided with a sliding groove, the outer side of the washing liquid box is provided with an extending portion, and the extending portion slides along the sliding groove.

Preferably, the outer box comprises an outer box body and an outer box cover, and the outer box body is connected with the outer box cover through a plurality of first buckles.

Preferably, the outer box cover is provided with a water inlet pipe, and the washing liquid put into the outer box is washed by the water entering from the water inlet pipe and is discharged from the liquid outlet.

Furthermore, the outer box cover comprises a first outer box cover and a second outer box cover, a water inlet pipe is arranged on the first outer box cover, a water inlet pipeline is formed by the first outer box cover and the second outer box cover, and part of the inlet water is used for washing the washing liquid in the outer box; the washing powder box is also provided with a washing powder accommodating part, part of the inlet water flows into the washing powder accommodating part from the distribution hole of the second outer box cover to dissolve the washing powder, the bottom of the washing powder accommodating part is provided with a guide plate, and the dissolved washing powder enters the outer box through the guide plate and flows out from the liquid outlet; the guide plate is connected with the bottom of the washing liquid box through a second buckle.

In another aspect, a washing machine is further provided, the washing machine body comprises the piston type automatic throwing box and the washing tub for the washing machine, the washing tub is used for containing clothes, and the liquid outlet is connected with the washing tub.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model provides an automatic box of puting in of piston for washing machine sets up spiral guide rail through puting in the pump at the piston for the piston can be according to the stroke that control mechanism required of marcing, thereby puts in the washing liquid measure of regulation, reaches real accurate input.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is an explosion structure diagram of the piston type automatic throwing box of the present invention;

fig. 2 is a schematic structural view of a front view when the drawer of the piston type automatic dispensing box of the present invention slides out;

fig. 3 is an explosion structure diagram of the detergent box and the dispensing pump of the piston type automatic dispensing box of the present invention;

fig. 4 is a front view sectional structure diagram of the piston type automatic throwing box of the present invention;

FIG. 5 is a schematic structural view of an outer box of the piston-type automatic dispensing box of the present invention;

fig. 6 is a schematic view of the structure of the front view of the cleaning solution box body of the piston type automatic dispensing box of the present invention;

fig. 7 is a schematic view of the structure of the lower view angle of the washing liquid box body of the piston type automatic dispensing box of the present invention;

fig. 8 is a schematic view of the structure of the outer box cover of the piston-type automatic dispensing box according to the present invention;

fig. 9 is a schematic view of a partial cross-sectional structure of a front view when a piston of the piston type automatic dispensing box sucks washing liquid according to the present invention;

fig. 10 is a schematic view of a partial cross-sectional structure of a front view when the piston of the piston type automatic dispensing box of the present invention dispenses the cleaning solution.

Description of reference numerals:

1-an outer box; 11-an outer shell; 12-an outer box cover; 13-water inlet pipe; 14-a liquid outlet; 15-a first buckle; 16-a chute; 121-a first outer box cover; 122-second housing cover; 1221-a dispensing hole;

2-a washing liquid box; 21-a washing liquid box; 211-a second catch; 22-washing liquid box cover; 221-liquid adding cover; 222-a filling opening; 26-an extension; 223-a drive assembly cavity; 213-a detergent holding part; 23-a baffle;

3-a throwing pump; 31-a drive assembly; 311-a first gear; 312-a second gear; 313-an electric machine; 32-a piston cavity; 321-the piston cavity mouth; 322-a cap; 33-liquid taking port; 34-a liquid injection port; 35-a piston rod; 36-piston.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a more detailed description of the present invention, which will enable those skilled in the art to make and use the present invention. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the following embodiments or technical features can be used to form a new embodiment without conflict. It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

The utility model discloses an automatic box of puting in of piston for washing machine is shown as figure 1, fig. 2, fig. 3, fig. 4, include:

a liquid outlet 14 is arranged at the lowest point of the bottom of the outer box 1;

a washing liquid box 2 for containing washing liquid;

the dispensing pump 3 comprises a liquid taking port 33 communicated with the washing liquid box 2, a liquid injection port 34 communicated with the outer box 1, and a piston cavity 32 communicated with the liquid taking port 33 and the liquid injection port 34; the piston cavity 32 is provided with a piston rod 35 and a piston 36, the piston 36 is matched with the inner wall of the piston cavity 32, the piston rod 35 is provided with a spiral guide rail, and the piston 36 is sleeved on the piston rod 35 and can lift on the spiral guide rail; the dispensing pump 3 further comprises a driving assembly 31 for driving the piston rod 35 to move, thereby driving the piston 36 to move up and down, the volume of the piston cavity 32 changes, and the laundry detergent enters the outer box 1 from the detergent box 2 through the liquid taking port 33 and the liquid injection port 34 and is discharged from the liquid outlet 14. The spiral guide rail is arranged on the piston rod 35 of the piston type feeding pump, so that the piston can move along a required stroke according to the control mechanism, and a specified washing liquid amount is fed, and the real accurate feeding is achieved.

In another embodiment, as shown in fig. 9 and 10, the liquid taking port 33 and the liquid injection port 34 are both provided with one-way valves, when the dosing pump 3 pumps the washing liquid in the washing liquid box 2, the liquid taking port 33 is opened, and the liquid injection port 34 is closed; when the washing liquid is poured into the outer box 1 by the pouring pump 3, the liquid taking port 33 is closed and the liquid pouring port 34 is opened. Thus, single movement is realized, and accurate throwing is achieved.

In another embodiment, as shown in fig. 3, the washing liquid box 2 comprises a washing liquid box body 21 and a washing liquid box cover 22, so that the washing liquid box 2 can be detached and is convenient to install.

In another embodiment, as shown in fig. 6 and 7, the piston chamber 32, the liquid taking port 33 and the liquid injection port 34 are integrally formed with the cleaning liquid box body 21, so that the uniform formation of the structure and the sealing performance of each connecting part are ensured.

In another embodiment, as shown in FIG. 3, the piston chamber 32 is disposed in the washing liquid box 21, and the injection port 34 is disposed on the outer wall of the bottom of the washing liquid box 2, leading to the outer box 1; the liquid taking port 33 is arranged on the inner wall of the bottom of the washing liquid box 2, so that washing liquid in the washing liquid box 2 enters the piston cavity 32 from the bottom of the washing liquid box 2; the end of the piston cavity 32 far away from the liquid injection port 34 is a piston cavity opening part 321, the piston rod 35 extends out of the piston cavity opening part 321, extends out of the washing liquid box cover 22 and is connected with the driving component 31 arranged outside the washing liquid box 2; by arranging the piston cavity 32 in the washing liquid box 21, the piston cavity 32, the liquid taking port 33 and the liquid injection port 34 of the pump can be part of the washing liquid box 2 while the integral structure is attractive, and the driving assembly is connected well, so that the washing liquid box can be a T-shaped structure shown in the figure or other structures.

Of course, the plug chamber 32 may be disposed in an additional component outside the washing liquid box 21, so that the independent design can ensure the independence of each structure, and the maintenance is convenient, but the sealing work of each position is required to prevent the leakage of the washing liquid.

In another embodiment, as shown in fig. 3 and 9, the piston chamber mouth 321 is provided with a cap 322 for sealing the piston chamber 32, and the piston rod 35 extends from the cap 322, in this embodiment, on one hand, the cap 322 is provided in consideration of the sealing operation to be performed when the piston chamber 32 is entirely in the detergent box 21 and the piston chamber mouth 321 needs to be ensured to be communicated with the detergent box 2; on the other hand, considering the stability of the piston rod 35 in rotation, the piston chamber mouth 321 is fitted with a cap 322, radially fitted with the piston rod 35. Of course, the piston cavity 321 can be a hole with the same circular cross section as the piston rod 35 to ensure that the piston rod 35 can extend and rotate to perform sealing operation, and the cap 322 can be understood as a sealing element; with the combination of the above embodiments, when the piston cavity 32 has an integral structure, the piston cavity opening 321 can be formed on the washing liquid box cover 22 or higher than the washing liquid box cover 22, and at this time, there is no sealing problem between the piston cavity 32 and the space in the washing liquid box 2, and meanwhile, the piston cavity opening 321 can also be set to be a hole with the same circular cross section as the piston rod 35, so as to make a connection with the space outside the washing liquid box 2, and the cap 322 can be understood as a gasket, etc. It is of course most preferred that the piston chamber port 321 is formed with a circular cross-section similar to that of the piston chamber 32 to ensure ease of maintenance of the inner piston 36, and that a cap 322 is provided.

In another embodiment, as shown in FIG. 3, the washing liquid box cover 22 is provided with a driving assembly cavity 223 recessed into the washing liquid box 2 for accommodating the driving assembly 31. Although the accommodation of the washing liquid in the washing liquid box 2 is partially reduced, the driving assembly 31 and the piston cavity 32 are integrally installed on the washing liquid box 2, so that the attractiveness of the parts is ensured, and the parts are convenient to maintain.

In another embodiment, as shown in fig. 3, the driving assembly 31 includes a motor 313, a first gear 311 connected to the motor 313, a second gear 312 connected to the piston rod 35, and the first gear 311 is engaged with the second gear 312. The piston rod 35 is rotated by the transmission of the motor and the gear.

In a specific movement manner, as described with reference to fig. 3, 9 and 10, from a top view, for example, when the motor 313 rotates clockwise, the piston rod 35 is driven to rotate counterclockwise, the piston 36 engaged with the piston rod 35 is lifted in cooperation with the spiral guide rail, a negative pressure is formed at the lower end of the piston 36, the liquid taking port 33 is opened, the liquid injection port 34 is closed by the negative pressure, and the washing liquid in the washing liquid box 2 enters the piston cavity 32 through the liquid taking port 33, as shown in fig. 9; when the motor 313 rotates counterclockwise, the piston rod 35 is driven to rotate clockwise, the piston 36 descends downwards in a spiral manner due to the pushing action of the spiral guide rail, the pressure in the piston cavity 32 rises, the one-way valve of the liquid taking port 33 is closed, the one-way valve of the liquid injection port 34 is opened, and the washing liquid in the piston cavity 32 is discharged from the liquid injection port 34 under the pushing action of the piston 36, enters the outer box 1 and is discharged from the liquid outlet 14. Of course, the positive and negative rotation of the motor can also be different according to the matching number of the spiral guide rails and the gears, and other known transmission modes can also be adopted.

In another embodiment, as shown in fig. 1 and 3, a liquid filling port 222 and a liquid filling cover 221 are provided on the washing liquid box cover 22 for replenishing the washing liquid in the washing liquid box 2.

In another embodiment, the filling opening 222 of the detergent box 2 is provided with a filling indicator, for example a "max" level, to alert the user that it is full.

In another embodiment, a liquid level sensor is arranged in the washing liquid box 2 and used for detecting and feeding back the liquid level height of the washing liquid in the washing liquid box, reminding a user in a sensing mode and reminding in a related washing machine control program or panel.

In another embodiment, as shown in fig. 1, 2 and 5, the outer box 1 has a containing space, the detergent box 2 is installed in the containing space and can slide in and out relative to the outer box 1, and a drawer-type manner is adopted, so that the outer box 1 and the detergent box 2 are integrated, and the whole is beautiful and convenient to maintain.

In another embodiment, as shown in fig. 5 and 7, the inner side wall of the outer box 1 is provided with a sliding slot 16, the outer side of the detergent box 2 is provided with an extending portion 26, the extending portion 26 slides along the sliding slot 16, and the corresponding connecting portion enables the detergent box 2 to be drawn out.

In another embodiment, as shown in fig. 1 and 5, the outer box includes an outer box body 11 and an outer box cover 12, and the outer box body 11 and the outer box cover 12 are connected by a plurality of first fasteners 15.

In another embodiment, as shown in FIG. 2, the outer box cover 12 is provided with a water inlet pipe 13, and the washing liquid put into the outer box 1 is washed by the water entering from the water inlet pipe 13 and discharged from the liquid outlet 14.

In another embodiment, as shown in fig. 3, 7 and 8, the outer box cover 12 includes a first outer box cover 121 and a second outer box cover 122, the first outer box cover 121 is provided with a water inlet pipe 13, the first outer box cover 121 and the second outer box cover 122 form a water inlet pipeline, and a part of the inlet water is used for washing the washing liquid in the outer box 1; the washing powder box 2 is also provided with a washing powder accommodating part 213, part of the inlet water flows into the washing powder accommodating part 213 from the distribution hole 1221 of the second outer box cover 122 to dissolve the washing powder, the bottom of the washing powder accommodating part 213 is provided with a guide plate 23, and the dissolved washing powder enters the outer box 1 through the guide plate 23 and flows out from the liquid outlet 14; the guide plate 23 is connected with the bottom of the washing liquid box 2 through a second buckle 211, and washing powder can be put into the piston type automatic putting box by designing the outer box cover 12 and adding the washing powder containing part 213.

The washing liquid box shown in the above embodiment, i.e. the figure, is single, and of course, a plurality of washing liquid boxes and corresponding dispensing pumps can be correspondingly arranged to accurately dispense a plurality of washing liquids, which is not described herein again.

On the other hand, the utility model provides a washing machine, including the washing machine body, the washing machine body includes as above-mentioned the automatic box and pail of puting in of piston that is used for washing machine, and the pail is used for holding the clothing, and liquid outlet 14 is connected with the pail, and the box quantitative washing liquid of puting in through the piston is automatic like this can get into the pail and participate in the laundry, and corresponding effect has been put in the box expression in above-mentioned piston is automatic, no longer gives unnecessary details.

While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields where the invention is suitable, and further modifications may readily be made by those skilled in the art, and the invention is therefore not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.

Claims

1. A piston-type automatic dispensing box for washing machines, characterized in that it comprises:

a liquid outlet is arranged at the lowest point of the bottom of the outer box;

the washing liquid box is used for containing washing liquid;

the washing machine comprises a putting pump, a liquid taking port communicated with a washing liquid box, a liquid injection port communicated with an outer box, and a piston cavity communicated with the liquid taking port and the liquid injection port; the piston cavity is provided with a piston rod and a piston, the piston is matched with the inner wall of the piston cavity, the piston rod is provided with a spiral guide rail, and the piston is sleeved on the piston rod and can lift on the spiral guide rail; the throwing pump further comprises a driving assembly for driving the piston rod to move so as to drive the piston to lift, the volume of the piston cavity changes, and the laundry detergent passes through the detergent box, the liquid taking port and the liquid injection port, enters the outer box and is discharged from the liquid outlet.

2. The piston-type automatic dispensing cartridge of claim 1,

the liquid taking port and the liquid injection port are both provided with one-way valves, when the putting pump extracts the washing liquid in the washing liquid box, the liquid taking port is opened, and the liquid injection port is closed; when the dropping pump drops the washing liquid into the outer box, the liquid taking port is closed, and the liquid injection port is opened.

3. The piston-type automatic dispensing box according to claim 2, wherein the washing liquid box comprises a washing liquid box body and a washing liquid box cover.

4. The piston-type automatic dispensing cartridge as claimed in claim 3, wherein said piston chamber, said dispensing opening, said filling opening and said cleaning solution cartridge body are integrally formed.

5. The piston type automatic throwing box according to claim 4, wherein the piston cavity is arranged in the washing liquid box, and the liquid injection port is arranged on the outer wall of the bottom of the washing liquid box and leads to the outer box; the liquid taking port is arranged on the inner wall of the bottom of the washing liquid box, so that washing liquid in the washing liquid box enters the piston cavity from the bottom of the washing liquid box; the piston cavity is far away from the end of the liquid injection port and is a piston cavity opening part, the piston rod extends out of the piston cavity opening part and extends out of the washing liquid box cover and is connected with a driving assembly arranged outside the washing liquid box.

6. The piston-type automatic dispensing cartridge as claimed in claim 5, wherein said piston chamber mouth portion is provided with a cap for sealing said piston chamber, said piston rod being extended from said cap.

7. The piston-type automatic dispensing box according to claim 6, wherein said detergent box cover is provided with a driving assembly cavity recessed into the detergent box for accommodating said driving assembly.

8. The piston-type automatic dispensing cartridge as claimed in any one of claims 1-7, characterized in that said drive assembly comprises a motor, a first gear connected to the motor, a second gear connected to the piston rod, said first gear being in mesh with the second gear.

9. The piston-type automatic dosing box according to any of the claims 3-7, characterized in that the washing liquid box cover is provided with a filling opening and a filling opening cover.

10. The piston-type automatic dispensing box according to claim 9, wherein the filling opening of the detergent box is provided with a filling prompting device.

11. The piston-type automatic dispensing box according to claim 9, wherein a liquid level sensor is arranged in the washing liquid box for detecting and feeding back the liquid level of the washing liquid in the washing liquid box.

12. The piston-type automatic dispensing box according to any one of claims 2-7, wherein the outer box has a receiving space, and the detergent box is installed in the receiving space and can slide in and out with respect to the outer box.

13. The piston-type automatic dispensing box according to claim 12, wherein a sliding groove is formed on an inner side wall of the outer box, and an extending portion is formed on an outer side of the detergent box, and the extending portion slides along the sliding groove.

14. The piston-type automatic dispensing box according to claim 12, wherein the outer box comprises an outer box body and an outer box cover, and the outer box body and the outer box cover are connected by a plurality of first fasteners.

15. The piston-type automatic dispensing box according to claim 14, wherein said outer box cover is provided with a water inlet pipe, and the washing liquid dispensed into the outer box is flushed by the water entering from the water inlet pipe and discharged from the liquid outlet.

16. The piston type automatic throwing box according to claim 15, wherein the outer box cover comprises a first outer box cover and a second outer box cover, a water inlet pipe is arranged on the first outer box cover, the first outer box cover and the second outer box cover form a water inlet pipeline, and part of inlet water is used for washing liquid in the outer box; the washing powder box is also provided with a washing powder accommodating part, part of the inlet water flows into the washing powder accommodating part from the distribution hole of the second outer box cover to dissolve the washing powder, the bottom of the washing powder accommodating part is provided with a guide plate, and the dissolved washing powder enters the outer box through the guide plate and flows out from the liquid outlet; the guide plate is connected with the bottom of the washing liquid box through a plurality of second buckles.

17. A washing machine comprising a washing machine body, wherein the washing machine body comprises the piston type automatic throwing box and the washing tub as claimed in claim 1, the washing tub is used for containing clothes, and the liquid outlet is connected with the washing tub.