CN108729139B

CN108729139B - Detergent additive box

Info

Publication number: CN108729139B
Application number: CN201710249321.9A
Authority: CN
Inventors: 吕佩师; 张华成; 黄涛
Original assignee: Qingdao Haier Drum Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Drum Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2017-04-17
Filing date: 2017-04-17
Publication date: 2020-12-29
Anticipated expiration: 2037-04-17
Also published as: CN108729139A

Abstract

The invention discloses a washing additive box which is a closed box body structure with a cavity inside, wherein the washing additive box is provided with a one-way vent valve and a liquid outlet, the liquid outlet is provided with an on-off valve, the washing additive box is also provided with a suction device, the inlet of the suction device is communicated with the cavity, and the outlet of the suction device is communicated with the inlet of the on-off valve. The washing additive box is matched with the switching mechanism of the washing machine and the feeding pipeline of the washing machine, so that automatic feeding and multiple feeding can be realized, and the washing additive box does not need to be installed in each washing.

Description

Detergent additive box

Technical Field

The invention relates to the field of washing machines, in particular to a detergent additive box which can be matched with a washing machine to realize automatic feeding and multiple feeding.

Background

The traditional washing machine uses the detergent which is separately arranged from the washing machine in the washing process, the washing machine is not provided with a detergent adding device, the detergent can not be automatically added, and the structure can not realize the full-automatic washing control process of the washing machine. With the improvement of the automation of the washing machine, most of the washing machines are provided with a detergent box for placing detergent or/and softener, which is communicated with a water inlet pipeline, and the detergent or/and softener in the detergent box is flushed into a washing barrel through water inlet, but the structure needs to firstly place the detergent or/and softener into the detergent box every time washing is carried out, and a full-automatic washing control process is not realized.

At present, there are a lot of patent applications related to automatic detergent feeding devices, and chinese patent with application number 97208723.0 discloses a detergent feeding device for washing machines, which is characterized in that a container matched with a bottle is arranged on a box body of the washing machine, the bottom of the container is a conical through hole, a vertical fixing piece is fixed on the through hole, a washing liquid conduit is fixed on the vertical fixing piece, the bottle body is matched with the container, a conical leading-in pipe is arranged on a bottle mouth, and a ventilation opening is arranged at the bottom of the bottle body. This structure cannot control the amount of detergent added and is easily damaged to waste detergent.

Chinese patent application No. 200610136059.9 discloses a detergent supply apparatus for a washing machine having a detergent box with a siphon unit, which injects detergent into the detergent box, and discharges the detergent in the box into a washing tub from the siphon unit after diluting the detergent by injecting wash water into the detergent box. The invention solves the problem that the clothes to be washed are damaged because the concentrated detergent directly enters the washing cylinder, but the automatic additive of the detergent cannot be accurately controlled.

The chinese patent No. 200710146295.3 previously filed by the applicant discloses a washing machine and a washing method for automatically adding detergent, the washing machine including: a washing barrel, a control panel comprising various cloth control keys, a washed clothes weight sensor, a temperature sensor, a water hardness sensor, a washing water dirt sensor, a detergent box and a computer board which are arranged in the washing barrel; the detergent box is composed of an upper storage box and a lower dilution box, and the computer board controls the amount of detergent in the storage box entering the dilution box according to the detection results of various sensors. The upper cover of the storage box is provided with a detergent injection port, and the bottom of the storage box is provided with a detergent discharge port and an electromagnetic valve for controlling the detergent discharge port to be closed and opened; the side of the diluting box is provided with a water injection pipe connected with a water inlet valve of the washing machine, and the bottom of the diluting box is provided with a siphon discharge pipe; the magnet exciting coil of the electromagnetic valve is arranged on the upper cover of the storage box, the armature of the electromagnetic valve is connected with the conical valve plug arranged on the detergent outlet at the bottom of the storage box through the valve rod, and a pressure spring is arranged between the conical valve plug and the upper cover of the storage box. Although the structure can realize accurate control of the detergent, the structure is complex and the cost is high.

Chinese patent application No. 201610797034.7 discloses a detergent dispensing device for a washing machine, the detergent dispensing device comprising: the storage cavity is limited with a special detergent box mounting groove, a first thimble and a second thimble which are used for puncturing a special detergent box are arranged in the special detergent box mounting groove, a water inlet hole is formed in the first thimble, a water outlet hole is formed in the second thimble, and the first thimble and the second thimble are both suitable for being communicated with the inner space of the special detergent box after the end part of the first thimble and the end part of the second thimble penetrate into the special detergent box. In the invention, washing water enters the detergent box through the water inlet hole, is mixed with detergent and flows out of the detergent box through the water outlet hole to enter the washing machine, the detergent box can be used only once, and a new detergent box needs to be installed for washing each time.

At present, a detergent additive box for containing detergent and softener is generally a sealed box body, and the detergent is quantitatively pumped out of the box body through a Venturi effect or a negative pressure effect or a metering pump and the like. However, as the detergent is drawn out, the air pressure in the sealed detergent additive box becomes smaller and smaller, so that the flowing out of the detergent becomes more and more difficult, a ventilation structure is needed to balance the air pressure in the detergent additive box, meanwhile, the detergent is prevented from flowing out of the detergent additive box due to pouring, vibration and the like, and external impurities and moisture are prevented from entering the detergent additive box to pollute the detergent.

In addition, after the detergent in the detergent box is put into the washing machine, a part of liquid is easy to be left on the bottom wall of the detergent box, thereby causing waste.

The present invention has been made in view of this situation.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art, and provide a detergent additive box which is matched with a switching mechanism of a washing machine and a feeding pipeline of the washing machine, can realize automatic feeding and multiple feeding, does not need to be installed in each washing process, improves the automation level of the washing machine, and facilitates the life of people.

In order to solve the technical problems, the invention adopts the technical scheme that the basic concept is as follows:

the washing additive box is of a closed box body structure with a cavity inside, the washing additive box is provided with a one-way vent valve and a liquid outlet, the liquid outlet is provided with an on-off valve, an absorbing device is further arranged in the washing additive box, an inlet of the absorbing device is communicated with the cavity, and an outlet of the absorbing device is communicated with an inlet of the on-off valve.

Preferably, the suction device extends towards the bottom wall of the detergent additive box, the inlet of the suction device is arranged towards the bottom wall of the detergent additive box, and a gap for liquid to pass through is reserved between the suction device and the bottom wall.

In the above scheme, the suction device is arranged, the inlet of the suction device is arranged towards the bottom wall of the detergent additive box, and a gap for liquid to pass through is reserved between the suction device and the bottom wall, so that the detergent additive in the detergent additive box can be completely extracted, and waste is avoided.

Preferably, the bottom wall of the detergent additive box is recessed to form a groove with a position lower than the surface of the bottom wall of the detergent additive box corresponding to the inlet of the suction device, and the inlet of the suction device is positioned in the groove and a gap for liquid to pass through is reserved between the inlet of the suction device and the bottom surface and the side wall of the groove.

In the above scheme, the groove with the inlet sunken forming position corresponding to the suction device on the bottom wall lower than the surface of the bottom wall of the detergent additive box plays a role in gathering the detergent additives when the residual quantity of the detergent additives is not large, and the inlet of the suction device is positioned in the groove, so that the detergent additives can be fully utilized, the detergent additives are saved to the greatest extent, and waste is avoided.

Preferably, the suction device is of a hollow tubular structure, a flow channel is formed inside the suction device, one end of the flow channel faces to the bottom wall of the detergent additive box, the other end of the flow channel is communicated with an inlet of the on-off valve, an arc-shaped reversing flow guide channel is formed between the inlet and an outlet of the flow channel, and a reversing position, corresponding to the inlet of the on-off valve, on the flow channel is an outward-expanding arc surface;

preferably, the radius of the arc surface is larger than that of the flow passage.

In the scheme, the outward-expanding arc surface at the reversing position of the inlet corresponding to the on-off valve on the flow channel is favorable for the flow of the washing additive in the flow channel, and compared with the adoption of a right angle or a corner similar to the right angle at the reversing position, the outward-expanding arc surface at the reversing position is favorable for the flow of liquid instead of generating intermittent flow.

Preferably, the on-off valve comprises a drainage channel, and a piston and a return spring which are arranged in the drainage channel, and the piston blocks the drainage channel under the action of the return spring.

Preferably, the on-off valve includes drainage channel and the piston of setting in drainage channel, piston outer wall and drainage channel's inner wall between leave and be used for the space that liquid flows, drainage channel is located export one end and is equipped with the narrowing section, the piston extrude under reset spring's effect on the narrowing section, seal drainage channel.

Preferably, the liquid outlet is used for being communicated with a feeding pipeline of the washing machine so as to feed washing additives into a washing chamber of the washing machine, and the feeding pipeline is provided with a communicating structure for opening the on-off valve when the liquid outlet is communicated with the feeding pipeline.

In the above solution, the communicating structure may be a protruding structure or a protruding structure, and the protruding structure may extend into the liquid outlet to be matched with the piston. The protruding structure pushes the piston open, i.e. opens the on-off valve.

Preferably, the communicating structure is arranged at the end part of the throwing pipeline, the piston is pushed to open the on-off valve, and a sealing ring is arranged in the drainage channel of the liquid outlet or the on-off valve and used for sealing the joint of the liquid outlet and the throwing pipeline.

In the above scheme, the communicating structure is a cylindrical structure, a flow passage is formed inside the communicating structure, one end of the communicating structure is used for being matched with the detergent additive box to open the on-off valve, and the other end of the communicating structure is used for being communicated with a feeding pipeline of the washing machine. The side wall of one end matched with the detergent additive box is provided with an opening communicated with an internal flow channel of the detergent additive box, so that when the end part supports the piston, the opening of the piston drains the detergent additive into the flow channel of the communicating structure, and then the detergent additive enters the washing machine through the feeding pipeline.

Preferably, the detergent additive box is of a cube or cuboid structure, and the liquid outlet is flush with the outer surface of the detergent additive box. Of course, the liquid outlet may protrude from the surface of the detergent additive box, and in order to reduce the processing difficulty and simplify the structure of the installation cavity for accommodating the detergent additive box, the detergent additive box is preferably designed to be a regular cube or a cuboid, and the liquid outlet is flush with the outer surface of the detergent additive box.

Preferably, the liquid outlet is arranged on the side wall of the washing additive box, and the communicating structure is horizontally arranged corresponding to the liquid outlet;

or the liquid outlet is arranged on the bottom wall of the washing additive box, and the communicating structure corresponds to the vertical arrangement of the liquid outlet.

Preferably, the one-way vent valve comprises a vent element and a switch element, the vent element is provided with a vent hole, the switch element comprises a switch part, the switch part is opened or closed by the change of air pressure at two sides of the detergent additive box, and the vent hole is one-way vented or closed.

By adopting the technical scheme, the invention has the following beneficial technical effects:

the washing additive box is matched with the switching mechanism of the washing machine and the feeding pipeline of the washing machine, so that automatic feeding and multiple feeding can be realized, and the washing additive box does not need to be installed in each washing; in the invention, the washing additive box is also internally provided with a suction device, one end of the suction device extends into the bottom of the cavity, the other end of the suction device is communicated with the inlet of the on-off valve, the bottom wall of the washing additive box is sunken to form a groove which is lower than the surface of the bottom wall of the washing additive box corresponding to the inlet of the suction device, and the inlet of the suction device is positioned in the groove, so that the suction device can fully suck the washing additive, and waste is prevented. On the other hand, a flow channel is formed in the suction device, the reversing position of the flow channel, corresponding to the inlet of the on-off valve, is an outward-expanding circular arc, and the structure design is favorable for the flow of liquid in the flow channel, so that a continuous and smooth drainage effect is formed, rather than the intermittent drainage.

The following describes embodiments of the present invention in further detail with reference to 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 limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is an exploded view of an installation structure of a detergent additive cartridge of the present invention;

FIG. 2 is a top view of the detergent additive cartridge of the present invention;

FIG. 3 is a sectional view taken at H-H of FIG. 2;

FIG. 4 is a sectional view taken along line J-J of FIG. 2;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a cross-sectional view I-I of FIG. 2;

FIG. 7 is a view showing the internal structure of a detergent additive box according to a third embodiment of the present invention;

FIG. 8 is an enlarged view of portion A of FIG. 7;

FIG. 9 is a schematic cross-sectional view of a one-way vent valve A-A according to example five of the present invention;

FIG. 10 is a schematic top view of a one-way vent valve according to example five of the present invention;

FIG. 11 is a schematic view of a detergent additive cartridge of the present invention;

fig. 12 is a schematic sectional view of an inlet cover a-a according to a sixth embodiment of the present invention;

FIG. 13 is a schematic top view of a one-way venting structure according to a sixth embodiment of the present invention;

FIG. 14 is a partial schematic view of an inlet cap in accordance with a sixth embodiment of the invention;

FIG. 15 is a schematic view of a detergent additive cartridge according to a sixth embodiment of the present invention.

In the figure: 1. a detergent additive box; 11. a raised structure; 12. a liquid outlet; 13. a groove; 2. a one-way vent valve; 21. a gas permeable element; 211. the air holes 212, the connecting holes 2121, the clamping bosses 213 and the annular groove; 22. the switch element 221, the switch part 222, the connecting part 2221, the annular boss 2222, the transition section 2223 and the hollow hole; 3. a suction device; 41. a seal ring; 5. an on-off valve; 51. a return spring; 52. a piston; 10. an upper case; 101. a through hole; 102. avoiding the mouth; 103. separating ribs; 20. a lower box body; 201. avoiding the mouth; 14. a liquid inlet; 141. a guide portion; 15. a mounting recess; 2', a liquid inlet cover; 21', a first cover body; 211' and air holes; 212', a connecting hole; 2121', a clamping boss; 213', an annular groove; 214', a recess; 215', a connecting portion; 22', a switching element; 221', a switching section; 222', connecting the transition sections; 2221', annular boss; 2223', a hollow bore; 23', a second cover body; 231', a groove; 232' and a transition portion.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The invention provides a washing additive box 1, wherein the washing additive box 1 is of a closed box body structure with a cavity inside, the washing additive box 1 is provided with a one-way vent valve 2 and a liquid outlet 12, the liquid outlet 12 is provided with an on-off valve 5, a suction device 3 is further arranged in the washing additive box 1, the inlet of the suction device 3 is communicated with the cavity, and the outlet of the suction device 3 is communicated with the inlet of the on-off valve 5.

Example one

In the first embodiment, referring to fig. 1 to 6, the suction device 3 extends toward the bottom wall of the detergent additive box 1, and the inlet of the suction device is disposed toward the bottom wall of the detergent additive box 1, and a gap for passing the liquid is left between the suction device and the bottom wall.

In the embodiment, the suction device 3 is provided, the inlet of the suction device 3 is arranged towards the bottom wall of the detergent additive box 1, and a gap for liquid to pass through is reserved between the suction device and the bottom wall, so that the detergent additive in the detergent additive box 1 can be completely extracted, and no waste is generated. Preferably, the bottom wall of the detergent additive box 1 is recessed to form a groove 13 with a position lower than the surface of the bottom wall of the detergent additive box 1 corresponding to the inlet of the suction device 3, and the inlet of the suction device 3 is positioned in the groove 13 and leaves a gap for liquid to pass through with the bottom surface and the side wall of the groove 13. In this embodiment, the recess 13 formed at the bottom wall corresponding to the inlet of the suction device 3 is lower than the surface of the bottom wall of the detergent additive box 1, so as to gather the detergent additives when the residual amount of the detergent additives is small, and the inlet of the suction device 3 is located in the recess 13, thereby fully utilizing the detergent additives, saving the detergent additives to the greatest extent, and avoiding waste.

Furthermore, the suction device 3 is of a hollow tubular structure, a flow channel is formed inside the suction device, one end of the flow channel faces the bottom wall of the detergent additive box 1, the other end of the flow channel is communicated with an inlet of the on-off valve 5, an arc-shaped reversing flow guide channel is formed between the inlet and an outlet of the flow channel, and a reversing part, corresponding to the inlet of the on-off valve 5, on the flow channel is an outward-expanding arc surface; preferably, the radius of the arc surface is larger than that of the flow passage. The reversing position on the flow channel corresponding to the inlet of the on-off valve 5 is an outward-expanding arc surface which is beneficial to the flow of the washing additive in the flow channel, and compared with the mode that a right angle or a corner similar to the right angle is adopted at the reversing position, the reversing position is arranged to be the outward-expanding arc surface which is beneficial to the flow of liquid, but not to generate intermittent flow.

Preferably, the on-off valve 5 comprises a drainage channel, and a piston 52 and a return spring 51 which are arranged in the drainage channel, wherein the piston 52 blocks the drainage channel under the action of the return spring 51.

Preferably, the on-off valve 5 comprises a drainage channel and a piston 52 arranged in the drainage channel, a gap for liquid flowing is reserved between the outer wall of the piston 52 and the inner wall of the drainage channel, a narrowing section is arranged at one end of the drainage channel, which is positioned at an outlet, and the piston 52 is pressed on the narrowing section under the action of a return spring 51 to close the drainage channel.

Preferably, the liquid outlet 12 is used for being communicated with a feeding pipeline of the washing machine so as to feed the washing additive into a washing chamber of the washing machine, and the feeding pipeline is provided with a communicating structure for opening the on-off valve 5 when the liquid outlet 12 is communicated with the feeding pipeline.

In this embodiment, the communicating structure may be a protruding structure or a protruding structure, and the protruding structure may extend into the liquid outlet 12 to cooperate with the piston 52. The projecting structure pushes the piston 52 open, i.e. opens said on-off valve 5.

Preferably, the communicating structure is arranged at the end of the throwing pipeline, the piston 52 is pushed to open the on-off valve 5, and a sealing ring 41 is arranged in the liquid outlet 12 or a drainage channel of the on-off valve 5 and used for sealing the joint of the liquid outlet 12 and the throwing pipeline.

In the above scheme, the communicating structure is a cylindrical structure, a flow channel is formed inside the communicating structure, one end of the communicating structure is used for being matched with the detergent additive box 1 to open the on-off valve 5, and the other end of the communicating structure is used for being communicated with a feeding pipeline of the washing machine. The side wall of one end for matching with the detergent additive box 1 is provided with an opening communicated with an internal flow channel of the detergent additive box, so that when the end part props against the piston 52, the opening of the side wall drains the detergent additive into the flow channel of the communicating structure, and then the detergent additive enters the washing machine through the feeding pipeline.

Preferably, the detergent additive box 1 is a cube or a cuboid structure, and the liquid outlet 12 is flush with the outer surface of the detergent additive box 1. Of course, the liquid outlet 12 may protrude from the surface of the detergent additive box 1, and in order to reduce the processing difficulty and simplify the structure of the installation cavity for accommodating the detergent additive box 1, it is preferable to design the detergent additive box 1 to be a regular cube or a rectangular parallelepiped, and the liquid outlet 12 is flush with the outer surface of the detergent additive box 1.

Example two

In this embodiment, the liquid outlet 12 of the detergent additive box 1 is disposed on the sidewall of the detergent additive box 1, the washing machine is provided with a water box, a distribution box capable of being drawn out and pushed into is disposed in the water box, an installation cavity is disposed on the distribution box, the detergent additive box 1 is installed in the installation cavity, and a communication structure is disposed in the water box, so that when the distribution box is pushed into the water box, the communication structure opens the on-off valve 5 to communicate the cavity with the feeding pipeline.

The liquid outlet 12 is arranged at the bottom of the side wall, and the suction device 3 is a hollow tubular structure arranged horizontally; wherein, the liquid outlet 12 is arranged at the bottom of the side wall, which is beneficial for the suction device 3 to fully suck the washing additive in the washing additive box 1.

Or, the liquid outlet 12 is arranged at any position of the sidewall, the suction device 3 is a hollow tubular structure with an inlet end bent towards one side of the bottom wall of the detergent additive box 1, the inlet of the suction device faces towards the bottom wall, and a gap for liquid to pass through is reserved between the suction device 3 and the bottom wall.

Furthermore, at least one placing space for placing the washing additive box 1 is limited in the mounting cavity, and a limiting structure is arranged on the mounting cavity and used for limiting the movement of the washing additive box 1 when the washing additive box 1 is arranged on the mounting cavity.

The limiting structure comprises an elastic piece arranged on one side of the installation cavity, and is used for elastically deforming between the detergent additive box 1 and the side wall of the installation cavity when the detergent additive box 1 is arranged on the installation cavity. Preferably, the detergent additive box is of a rectangular parallelepiped structure, and the elastic member is arranged along the length direction of the detergent additive box.

Preferably, the detergent additive box 1 comprises a plurality of detergent additive boxes which are respectively arranged in the mounting cavity in parallel, and the limiting structure further comprises at least one separating rib arranged on the bottom wall of the mounting cavity and used for separating the detergent additive boxes 1.

Preferably, the partition rib 103 is disposed in the same direction as the elastic member, the partition rib 103 limits the movement of the detergent additive box 1 in a first direction, and the elastic member limits the movement of the detergent additive box 1 in a second direction perpendicular to the first direction. Preferably, the side wall of the installation cavity, which is positioned at the opposite side of the elastic piece, is provided with a handle buckling position; preferably, the fastening position is a concave part extending outwards from the side wall of the mounting cavity. And a convex structure 11 for increasing friction force is arranged on the detergent additive box 1 corresponding to the hand buckling position. The protruding structure is further convenient for users to detach, and preferably, the protruding structure is a plurality of protruding ribs arranged on the side surface of the detergent additive box in parallel.

Furthermore, the distribution box comprises an upper box body 10 and a lower box body 20, the upper box body 10 and the lower box body 20 can be detached, washed and integrated, a drainage structure communicated with the outer barrel of the washing machine is arranged/connected on the lower box body 20, the mounting cavity is arranged on the upper box body 10, and the bottom wall of the mounting cavity is provided with a through hole 101 communicated with the lower box body 20; set up this through-hole 101 and made things convenient for the user to wash the installation cavity, because in long-time use, the liquid outlet 12 department of this detergent additive box 1 probably has liquid to leak outward, and at this moment, this installation cavity of accessible water scouring, the water after the scouring can get into lower floor box body 20 through this through-hole 101, and then flow into in the washing machine to reach clean abluent purpose. The communicating structure set up in the water box, and this upper box body 10's installation intracavity relative liquid outlet 12 seted up and dodge mouthful 102, should dodge mouthful 102 and be provided with and dodge mouthful 201 on the lower box body simultaneously also corresponding, through this structure, then when pushing this distribution box in the water box, the communicating structure that sets up on the water box passes in proper order and dodges mouthful 201 and dodge mouthful 102 with the liquid outlet cooperate, and then open the on-off valve. The cavity is communicated with the throwing pipeline. The water box is also internally provided with a negative pressure generator which is used for pumping the liquid in the washing additive box to the inside of the washing machine.

EXAMPLE III

Referring to fig. 7-8, in this embodiment, the liquid outlet 12 is located on the bottom wall of the detergent additive box 1 and is used for communicating with a feeding pipeline of the washing machine to feed the detergent additive into the washing machine, an installation cavity for accommodating the detergent additive box 1 is arranged on the top surface of the washing machine, and a communication structure is arranged in the installation cavity and opposite to the liquid outlet 12, so that when the detergent additive box 1 is placed in the installation cavity, the communication structure opens the on-off valve 5 to communicate the cavity and the feeding pipeline.

Preferably, the on-off valve 5 is vertically arranged in the detergent additive box 1, the inlet end of the suction device 3 is bent and extended towards one side of the bottom wall of the detergent additive box 1, the inlet of the suction device faces towards the bottom wall, and a gap for liquid to pass through is reserved between the inlet end and the bottom wall. Wherein, the inlet of the suction device 3 faces the bottom wall of the detergent additive box 1, and a gap for liquid to pass through is reserved between the inlet of the suction device and the bottom wall, and on the premise of not influencing the liquid flow, the smaller the distance between the inlet of the suction device and the bottom wall is, the better.

Furthermore, the suction device 3 is of a hollow tubular structure, a flow channel is formed inside the suction device, one end of the flow channel faces the bottom of the detergent additive box 1, the other end of the flow channel is communicated with an inlet of the on-off valve 5, a flow guide channel which is reversed twice is formed between the inlet and an outlet of the flow channel, wherein the suction device 3 and the on-off valve 5 are matched to form an n-shaped flow guide channel, and preferably, the reversing position, corresponding to the inlet of the on-off valve 5, on the flow channel is an outward-expanding arc surface; the reversing position on the flow channel corresponding to the inlet of the on-off valve 5 is an outward-expanding arc surface which is beneficial to the flow of the washing additive in the flow channel, and compared with the mode that a right angle or a corner similar to the right angle is adopted at the reversing position, the reversing position is designed into the outward-expanding arc surface which is beneficial to the flow of liquid, but not generating intermittent flow.

Preferably, the two reversing positions on the flow channel are both outward-expanding arc surfaces;

preferably, the radius of the arc surface is larger than that of the flow passage. When the radius of the arc surface is larger than that of the flow channel, the drainage effect is better.

Preferably, the bottom wall of the detergent additive box 1 is recessed to form a groove 13 with a position lower than the surface of the bottom wall of the detergent additive box 1 corresponding to the inlet of the suction device 3, and the inlet of the suction device 3 is positioned in the groove 13 and leaves a gap for liquid to pass through with the bottom surface and the side wall of the groove 13.

The communicating structure is vertically and convexly arranged at the bottom of the mounting cavity and used for being placed in the mounting cavity when the detergent additive box 1 is placed in the mounting cavity, the liquid outlet 12 is inserted to push the piston 52, the on-off valve 5 is opened, and a sealing ring 41 is arranged in the liquid outlet 12 or a drainage channel of the on-off valve 5 and used for sealing the joint of the liquid outlet 12 and the feeding pipeline. Wherein, the sealing ring 41 is arranged to effectively prevent the liquid at the liquid outlet 12 of the detergent additive box 1 from leaking.

Example four

The structure of the detergent additive box 1 is described in this embodiment, and is divided into two structures, namely a first structure: referring to fig. 1 to 6, the liquid outlet 12 is disposed on a side wall, and the detergent additive box 1 is a rectangular or cubic box structure. Preferably, the detergent additive box 1 is a cuboid structure, the liquid outlet 12 of the detergent additive box is arranged on the side wall of one side, the side wall is connected with the box body in a sealing way, the on-off valve 5 can be arranged integrally with the side wall, and the inlet of the on-off valve 5 is communicated with the outlet of the suction device 3 in a sealing way; the second structure is as follows: referring to fig. 7, the detergent additive is in a regular rectangular structure, the liquid outlet 12 is arranged on the bottom wall, the on-off valve 5 and the bottom wall are integrally arranged, the on-off valve 5 is vertically arranged, one end of the suction device 3 is arranged towards the bottom wall, the other end of the suction device is turned twice, the outlet of the suction device is hermetically communicated with the inlet of the on-off valve 5, and the reversing position of the flow channel corresponding to the inlet of the on-off valve 5 is an outward-expanding arc surface; the reversing position on the flow channel corresponding to the inlet of the on-off valve 5 is an outward-expanding arc surface which is beneficial to the flow of the washing additive in the flow channel, and compared with the mode that a right angle or a corner similar to the right angle is adopted at the reversing position, the reversing position is designed into the outward-expanding arc surface which is beneficial to the flow of liquid, but not generating intermittent flow. Preferably, two turning positions in the flow channel are both outward-expanding arc surfaces.

EXAMPLE five

As shown in fig. 9 to 11, the present embodiment describes the one-way vent valve 2: the one-way vent valve 2 is arranged on a washing additive box 1 and comprises a vent element 21 and a switch element 22, a vent hole 211 is formed in the vent element 21, the switch element 22 comprises a switch part 221, the switch part 221 is opened or closed by the change of air pressure on the inner side and the outer side of the washing additive box 1, and the vent hole 211 is one-way vented or closed.

Two air holes 211 are arranged on the ventilating element 21, the air holes 211 penetrate through the upper end surface and the lower end surface of the ventilating element 21, and air outlets of the air holes are uniformly and circumferentially distributed on the lower end surface.

The ventilating element 21 is formed by two coaxial cylindrical structures with different diameters, and the diameter of the upper end surface is slightly larger than that of the lower end surface.

The ventilation member 21 is also coaxially provided with a connection hole 212 for connecting the switching member 22 and an annular groove 213 for sealing the auxiliary switching member 22.

The connecting hole 212 penetrates through the air permeable element 21 and is coaxial with the air permeable element 21, the connecting hole 212 comprises two holes which are coaxial and have different diameters, and the connecting position of the two holes forms a clamping boss 2121 for clamping the switch element 22. The air holes 211 are uniformly circumferentially arranged around the axis of the connection hole 212.

The annular groove 213 is disposed on the lower end surface of the ventilation member 21, and the air outlet of the ventilation hole 211 is disposed on the lower end surface within the annular groove 213. The inner side wall of the annular groove 213 is inclined towards the air hole 211 and extends to the outer edge of the air hole 211 in a transition manner, the outer side wall of the annular groove 213 is a vertical side, and the two side walls are intersected smoothly.

The switch element 22 is an integrally formed elastic material element, and includes a switch portion 221 and a connecting portion 222.

The switch portion 221 is an inverted umbrella-shaped structure, and covers the lower end surface of the ventilation element 21, and the end thereof extends into the annular groove 213.

The switch part 221 is closed, the tail end of the switch part extends into the annular groove 213, and the air hole 211 is sealed; when the switch part 221 is opened, the switch part 221 is deformed, the tail end of the switch part leaves the annular groove 213, and the air holes 211 are ventilated in one direction.

The connecting portion 222 is provided with an annular boss 2221 and a transition section 2222, the annular boss 2221 is matched with a clamping boss 2121 on the connecting hole 212 to clamp the connecting portion 222 in the connecting hole 212, the transition section 2222 is arranged between the annular boss 2221 and the switch portion 221, and a hollow hole 2223 for assisting the switch portion 221 to deform is arranged inside the transition section 2222.

Preferably, the cross section of the annular boss 2221 is semicircular; the hollow hole 2223 formed in the transition section 2222 extends through the switch part 221, so as to further reduce the force required for the switch part 221 to deform.

The detergent additive box 1 in this embodiment includes a liquid outlet 12, and further includes the above-mentioned one-way vent valve 2, and the detergent additive box 1 has two states: the washing additive is extracted from the liquid outlet 12, the air pressure in the washing additive box 1 is reduced, the air pressure in the washing additive box 1 is smaller than the external air pressure, the switch part 221 is deformed, the tail end of the switch part leaves the annular groove 213, and the air is admitted through the air vent 211; in the second state, the extraction is stopped, the liquid outlet 12 is sealed, the air pressure in the detergent additive box 1 is equal to the external air pressure, the switch part 221 is restored, and the tail end of the switch part extends into the annular groove 213 to seal the detergent additive box 1.

EXAMPLE six

As shown in fig. 12-15, in this embodiment, the detergent additive box 1 is provided with a liquid inlet cap 2 ', which includes a box body and a liquid inlet 14, wherein the liquid inlet 14 is detachably provided with a liquid inlet cap 2 ', and the liquid inlet cap 2 ' is of a one-way ventilation structure.

The one-way ventilating structure comprises a cover body and a switch element 22 ', wherein the cover body is provided with two ventilating holes 211', the switch element 22 'comprises a switch part 221', the switch part 221 'is opened or closed by the change of air pressure at the inner side and the outer side of the detergent additive box 1, and the ventilating holes 211' are ventilated or closed in one way.

The cover body is provided with at least one air hole 211 ', the air hole 211 ' penetrates through the upper end surface and the lower end surface of the cover body, and air outlets of the air holes 211 ' are uniformly and circumferentially distributed on the lower end surface.

The cover body comprises a first cover body 21 'for rigid support and a second cover body 23' for flexible sealing, wherein the second cover body 23 'is sleeved at the lower end of the first cover body 21' and is matched with the first cover body 21 'to detachably and hermetically install the liquid inlet cover 2' at the liquid inlet 14.

The first cover body 21 'and the second cover body 23' are made of two materials, and the first cover body 21 'and the second cover body 23' are formed in a clamping mode.

The first cover body 21 ' is composed of two cylindrical structures with different diameters, the diameter of the upper end is larger than that of the lower end, the second cover body 23 ' is sleeved on the lower end of the first cover body 21 ', and the diameter of the upper end of the first cover body 21 ' is larger than that of the second cover body 23 '.

The side wall of the second cover 23 ' is provided with a groove 231 ' for clamping the cassette inlet 14, and the outer side of the bottom of the second cover is also provided with a transition part 232 ' convenient for installation.

The groove 231 ' is matched with the liquid inlet 14, the liquid inlet cover 2 ' is clamped at the liquid inlet 14 in a sealing manner, and the transition part 232 ' which is arranged on the outer side of the bottom of the liquid inlet cover and is convenient to mount is an inclined plane extending outwards from the bottom of the liquid inlet cover.

The bottom of the upper side wall of the first cover body 21 'is provided with a concave part 214' suitable for being buckled by hands. Is a flat recess 214 'with an inclination from the side wall of the first cover 21' to the bottom thereof.

The second cover 23 ' is an integrally formed elastic material element, and the lower end of the first cover 21 ' is provided with a non-smooth connecting portion 215 ', and the connecting portion 215 ' is matched with the second cover 23 ' to enhance the connecting strength between the first cover 21 ' and the second cover 23 '.

The first cover body 21 'is provided with two air holes 211' penetrating through the upper end surface and the lower end surface thereof, and is also coaxially provided with a connecting hole 212 'for connecting the switch element 22' and an annular groove 213 'for sealing the auxiliary switch element 22', the annular groove 213 'is arranged on the lower end surface of the first cover body 21', and an air outlet of the air hole 211 'is arranged on the lower end surface within the annular groove 213'.

The air outlets of the air holes 211' are uniformly and circumferentially distributed on the lower end surface.

The connection hole 212 'and the annular groove 213' are coaxially arranged, and the ventilation holes 211 'are uniformly and circumferentially arranged around the axis of the connection hole 212'.

A locking boss 2121 ' for locking the switch element 22 ' is formed in the connecting hole 212 '.

Preferably, the inner side wall of the annular groove 213 'is inclined toward the ventilation hole 211', and more preferably, the inner side wall of the annular groove 213 'is inclined to transit to the outer edge of the ventilation hole 211'. The sealing effect with the switching part 221' is improved.

The box body is provided with a concave part 15 and a handle position 16, wherein the concave part 15 is used for installing the liquid inlet cover 2 ', the concave part 15 extends outwards from the liquid inlet 14, and the shape of the concave part is matched with the upper end of the first cover body 21'; the handle fastening position 16 is a semicircular concave part 15 which is additionally extended outwards from one end of the concave part 15; the liquid inlet 14 is further provided with a guide portion 141 convenient for mounting the liquid inlet cover 2 ', and the guide portion is matched with the transition portion 232 ' of the second cover body 23 '.

The switch element 22 ' is an integrally formed elastic material element, and includes a switch portion 221 ' and a connection transition section 222 ' connected to the connection hole 212 ' of the first cover body 21 '.

The switch part 221 'is an inverted umbrella-shaped structure or a conical structure, covers the lower end face of the first cover body 21', and is kept in an original state or deformed to cause the tail end of the switch part to extend into or leave the annular groove 213 ', and the air hole 211' is closed or opened; the connecting transition section 222 ' is internally provided with a hollow hole 2223 ' for assisting the deformation of the switch part 221 '.

The switch portion 221 'of the switch element 22' is made of an elastic material, and the switch portion 221 'and the connecting portion 215' are integrally formed. The switching portion 221' is provided as an inverted umbrella-shaped structure.

The switch part 221 ' is closed, the tail end of the switch part extends into the annular groove 213 ', and the air hole 211 ' is sealed; when the switch part 221 'is opened, the switch part 221' is deformed, and the tail end of the switch part leaves the annular groove 213 ', and the air holes 211' are ventilated in one direction.

The connecting transition section 222 ' is provided with an annular boss 2221 ' and a transition section, and the annular boss 2221 ' cooperates with the retaining boss 2121 ' on the connecting hole 212 ' to retain the connecting portion 215 ' in the connecting hole 212 '. The section of the annular boss 2221' is semicircular; a hollow hole 2223 ' provided inside the connection transition section 222 ' extends through the switch portion 221 '.

A detergent additive box 1 provided with a liquid inlet cover 2' comprises a liquid outlet 12, and the detergent additive box 1 has two states: in the first state, the washing additive is extracted from the liquid outlet 12, the air pressure in the washing additive box 1 is reduced, the air pressure in the washing additive box 1 is smaller than the external air pressure, the switch part 221 ' is deformed, the tail end of the switch part leaves the annular groove 213 ', and the air is fed through the air holes 211 '; in the second state, the extraction is stopped, the liquid outlet 12 is sealed, the air pressure in the detergent additive box 1 is equal to the external air pressure, the switch part 221 'is restored, and the tail end of the switch part extends into the annular groove 213' to seal the detergent additive box 1.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A washing additive box is characterized in that the washing additive box is of a closed box body structure with a cavity inside, the washing additive box is provided with a one-way vent valve and a liquid outlet, the liquid outlet is provided with an on-off valve, the washing additive box is also internally provided with a suction device, an inlet of the suction device is communicated with the cavity, and an outlet of the suction device is communicated with an inlet of the on-off valve;

the bottom wall of the detergent additive box is recessed to form a groove with a position lower than the surface of the bottom wall of the detergent additive box corresponding to the inlet of the suction device, the inlet of the suction device is positioned in the groove, and a gap for liquid to pass through is reserved between the inlet of the suction device and the bottom surface and the side wall of the groove;

the suction device is of a hollow tubular structure, a flow passage is formed in the suction device, one end of the flow passage faces to the bottom wall of the detergent additive box, the other end of the flow passage is communicated with an inlet of the on-off valve, an arc-shaped reversing flow guide passage is formed between the inlet and an outlet of the flow passage, and a reversing part of the flow passage, which corresponds to the inlet of the on-off valve, is an outward-expanded arc surface;

the detergent adding box is arranged on the distribution box, a mounting cavity is formed in the distribution box, the detergent adding box is installed in the mounting cavity, the distribution box can be arranged in a water box of the washing machine in a telescopic/pushing mode and comprises an upper box body and a lower box body, the upper box body and the lower box body can be detached and washed/integrally arranged, the mounting cavity is formed in the upper box body, a through hole communicated to the lower box body is formed in the bottom wall of the mounting cavity, and a drainage structure communicated to the outer barrel of the washing machine is arranged on/connected to the lower box body.

2. The detergent additive container of claim 1 wherein said suction means extends toward the bottom wall of the detergent additive container, and the inlet of the suction means is disposed toward the bottom wall of the detergent additive container and spaced from the bottom wall to allow the passage of liquid therethrough.

3. The detergent additive container of claim 1 wherein the radius of the arcuate surface is greater than the radius of the flow path.

4. A detergent additive cartridge as claimed in any one of claims 1 to 3 wherein said on-off valve comprises a drainage passage and a piston and return spring disposed in said drainage passage, said piston being adapted to close said drainage passage under the action of said return spring.

5. The detergent additive box of claim 4, wherein the liquid outlet is used for being communicated with a feeding pipeline of a washing machine to feed the detergent additive into a washing chamber of the washing machine, and the feeding pipeline is provided with a communicating structure for opening the on-off valve when the liquid outlet is communicated with the feeding pipeline.

6. The detergent additive container of claim 5 wherein the communicating structure is disposed at an end of the dispensing line, the on-off valve is opened by pushing the piston, and a sealing ring is disposed in the outlet or a flow path of the on-off valve for sealing a junction between the outlet and the dispensing line.

7. A detergent additive cartridge as claimed in any one of claims 1 to 3, wherein said detergent additive cartridge is of a cube or rectangular parallelepiped configuration, and said outlet is disposed flush with the outer surface of the detergent additive cartridge.

8. The detergent additive container of claim 5 wherein said outlet is disposed on a sidewall of the detergent additive container, and said communicating structure is disposed horizontally with respect to said outlet;

9. The detergent box according to any of claims 1 to 3, wherein said one-way vent valve comprises a vent element and a switch element, said vent element is provided with a vent hole, said switch element comprises a switch portion, air pressure change at two sides of said detergent box opens or closes said switch portion, and said vent hole is one-way vented or closed.