CN219218459U

CN219218459U - Drip-proof dispenser and washing equipment

Info

Publication number: CN219218459U
Application number: CN202223366575.4U
Authority: CN
Inventors: 孙冬松; 黄涛; 王得军
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-06-20
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses an anti-drip dispenser and washing equipment, comprising: the liquid storage box is provided with a liquid suction channel, a check valve is arranged in the liquid suction channel, and one end of the check valve is sealed with the inner wall of the liquid suction channel; the sleeve assembly is internally provided with a liquid suction channel; the sleeve assembly comprises an outer sleeve and an inner sleeve, and the outer sleeve is slidably sleeved on the inner sleeve; when the sleeve component is inserted into the liquid suction channel, the sleeve component pushes the check valve to be separated from the inner wall of the liquid suction channel, so that the liquid suction channel is communicated with the liquid suction channel; the sleeve assembly is pulled out of the liquid suction channel, the inner sleeve and the outer sleeve move axially relatively, the inner sleeve is separated from the check valve, and the outer sleeve is sealed with the inner wall of the liquid suction channel. According to the utility model, the sleeve assembly is arranged to push the check valve to be separated from the inner wall of the liquid suction channel, so that the liquid suction channel is communicated with the liquid suction channel, and the outer sleeve is arranged to be sealed with the inner wall of the liquid suction channel, thereby avoiding equipment faults caused by liquid leakage or dripping and improving safety.

Description

Drip-proof dispenser and washing equipment

Technical Field

The utility model belongs to the technical field of washing equipment, and particularly relates to an anti-drip dispenser and washing equipment.

Background

With the continuous improvement of the living standard of people, the washing machine is rapidly popularized in various families, and brings convenience for users to wash clothes. At present, most washing machines are increasingly rich in functions, so that automatic detergent feeding can be performed, and user experience is improved. However, in the process of daily replacement of the detergent ink box, the automatic detergent dispenser in the washing machine industry has the phenomena of detergent leakage and dripping due to plugging and unplugging, and even the detergent enters the machine due to leakage, so that equipment use faults are caused.

In order to solve the problems, a sealing ring is arranged at the bottle mouth of part of the detergent ink box and used for improving the tightness of the joint of the bottle mouth and the throwing device and preventing the detergent from dripping. However, it is difficult to avoid the phenomenon that the detergent drops when the detergent ink cartridge is inserted and removed by only sealing with the sealing ring.

The chinese patent with application number 202210518515.5 discloses an automatic feeding device of a washing machine, comprising: the inside of the additive box is provided with a cavity for containing additives; the dispenser is connected with the additive box and is used for dispensing additives; the unidirectional ventilation structure is arranged on the dispenser and is communicated with the additive box through a ventilation pipeline.

The one-way ventilation structure is arranged in the throwing device, so that the consistency of the additive box and external air pressure is maintained, detergent leakage is avoided, but the phenomenon that the detergent drops or leaks still exists when the additive box is plugged and pulled, and equipment faults are easy to cause.

In view of this, the present utility model has been made.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides an anti-drip dispenser and washing equipment.

In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that:

a drip resistant dispenser comprising: the liquid storage box is provided with a liquid suction channel, a check valve is arranged in the liquid suction channel, and one end of the check valve is sealed with the inner wall of the liquid suction channel;

a sleeve assembly having a fluid suction passage therein; the sleeve assembly comprises an outer sleeve and an inner sleeve, and the outer sleeve is slidably sleeved on the inner sleeve;

when the sleeve component is inserted into the liquid suction channel, the sleeve component pushes the check valve to be separated from the inner wall of the liquid suction channel, so that the liquid suction channel is communicated with the liquid suction channel;

the sleeve assembly is pulled out of the liquid suction channel, the inner sleeve and the outer sleeve move axially relatively, the inner sleeve is separated from the check valve, and the outer sleeve is sealed with the inner wall of the liquid suction channel.

Further, one end of the outer sleeve extends into the liquid suction channel, and the other end extends out of the liquid suction channel; the inner sleeve is abutted with one end of the check valve, which is close to the inner wall of the liquid suction channel.

Further, the sleeve assembly further comprises a sealing mechanism arranged at one end of the outer sleeve extending into the liquid suction channel and used for sealing the inner wall of the liquid suction channel when the inner sleeve is separated from the check valve;

the sealing mechanism is arranged around one end of the outer sleeve, which is close to the liquid suction channel, and is sealed with the inner wall of the liquid suction channel.

Further, the outer sleeve comprises a first sleeve part and a second sleeve part, wherein the first sleeve part stretches into the liquid suction channel, and the second sleeve part is slidably sleeved on the top of the inner sleeve.

Further, the liquid suction channel comprises a first liquid suction channel arranged in the first sleeve part, a second liquid suction channel arranged in the second sleeve part and a third liquid suction channel arranged in the inner sleeve part; the first liquid suction channel is communicated with the liquid suction channel;

the first sleeve part is pulled out of the liquid suction channel, the inner sleeve and the outer sleeve move axially relatively, the volume of the second liquid suction channel is increased, a pressure difference is generated between the second liquid suction channel and the liquid suction channel, and liquid is sucked to flow into the first liquid suction channel.

Further, the cross-sectional area of the second aspiration channel is greater than the cross-sectional area of the first aspiration channel; the cross-sectional area of the third imbibition channel is smaller than the cross-sectional area of the second imbibition channel and larger than the cross-sectional area of the first imbibition channel.

Further, the inner sleeve further comprises a push rod arranged in the inner sleeve, one end of the push rod extends out of the outer sleeve to push the check valve to be separated from the inner wall of the liquid suction channel.

Further, the dispenser further comprises a support frame, wherein the support frame is arranged outside the liquid storage box and used for supporting the liquid storage box.

Further, the support frame also comprises a liquid collecting part, wherein the liquid collecting part is formed by partial depression of the support frame; the bottom of the liquid collecting part is penetrated with a through hole, and the inner peripheral wall of the through hole is connected with the outer peripheral wall of the sleeve assembly.

According to another object of the present utility model, there is also provided a washing apparatus comprising the drip-proof dispenser described above.

After the technical scheme is adopted, compared with the prior art, the utility model has the following beneficial effects:

in the utility model, the check valve is arranged to seal with the inner wall of the liquid suction channel, so that liquid leakage or backflow is prevented; the sleeve assembly is arranged to push the check valve to be separated from the inner wall of the liquid suction channel, so that the liquid suction channel is communicated with the liquid suction channel, and the liquid in the liquid storage box flows to the liquid suction channel for throwing; and when the liquid storage box is arranged to pull out the sleeve assembly, the inner sleeve is separated from the check valve, the outer sleeve is sealed with the inner wall of the liquid pumping channel, liquid leakage or dripping is further avoided, the malfunction of washing equipment is avoided, the use safety of the dispenser is effectively ensured, and the use experience of a user is improved.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:

FIG. 1 is a schematic view of a dispenser according to the utility model;

FIG. 2 is a schematic cross-sectional view of a dispenser of the present utility model;

FIG. 3 is another schematic cross-sectional view of the dispenser of the utility model;

FIG. 4 is a schematic view of the structure of the sleeve assembly and the delivery pump of the present utility model;

fig. 5 is a schematic top view of the sleeve assembly and dispensing pump of the present utility model.

In the figure: 1. a liquid storage box; 11. a liquid suction channel; 12. a non-return valve; 2. a sleeve assembly; 21. a liquid suction channel; 22. an outer sleeve; 23. an inner sleeve; 24. a sealing mechanism; 221. a first sleeve portion; 222. a second sleeve portion; 211. a first liquid suction channel; 212. a second liquid suction channel; 213. a third liquid suction channel; 231. a push rod; 3. a support frame; 31. a liquid collecting part; 311. a through hole; 4. a delivery pump; 41. a liquid suction port; 42. and a liquid outlet.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the conventional automatic detergent dispenser in the washing machine industry, during daily replacement of a detergent ink box, the phenomena of detergent leakage and dripping exist due to plugging and unplugging, and even the detergent enters the machine due to leakage, so that equipment is in use failure.

Example 1

In order to solve the above problems, as shown in fig. 1 to 5, the present embodiment provides an anti-drip dispenser, including: the liquid storage box 1 is provided with a liquid suction channel 11, a check valve 12 is arranged in the liquid suction channel 11, and one end of the check valve 12 is sealed with the inner wall of the liquid suction channel 11;

a sleeve assembly 2 having a liquid suction passage 21 therein; the sleeve assembly 2 comprises an outer sleeve 22 and an inner sleeve 23, wherein the outer sleeve 22 is slidably sleeved on the inner sleeve 23;

when the sleeve assembly 2 is inserted into the liquid suction channel 11, the sleeve assembly 2 pushes the check valve 12 to be separated from the inner wall of the liquid suction channel 11, so that the liquid suction channel 11 is communicated with the liquid suction channel 21;

the sleeve assembly 2 is pulled out from the liquid suction channel 11, the inner sleeve 23 and the outer sleeve 22 axially move relatively, the inner sleeve 23 is separated from the check valve 12, and the outer sleeve 22 is sealed with the inner wall of the liquid suction channel 11.

In the above-described solution, the cartridge 1 is mounted on a dispenser. The liquid storage box 1 is provided with a liquid suction channel 11, the liquid suction channel 11 is communicated with the inside of the liquid storage box 1, and the detergent in the liquid storage box 1 flows into the dispenser through the liquid suction channel 11 to be dispensed.

The liquid suction channel 11 is internally provided with a check valve 12, and the check valve 12 has the characteristic of unidirectional conduction. The detergent in the liquid suction channel 11 flows into the dispenser through the check valve 12, and meanwhile, the detergent in the liquid suction channel 21 is prevented from flowing back into the liquid storage box 1 through the liquid suction channel 11. One end of the check valve 12 is sealed with the inner wall of the liquid suction channel 11, and is used for blocking the flow of the detergent and avoiding the leakage of the detergent at the joint of the check valve 12 and the liquid suction channel 11.

The sleeve assembly 2 is internally provided with a liquid suction channel 21, and the liquid suction channel 21 is communicated with the liquid suction channel 11. The sleeve assembly 2 pushes the check valve 12 to move, so that the check valve 12 is separated from the inner wall of the liquid suction channel 11, and then the liquid suction channel 11 is communicated with the liquid suction channel 21, and the detergent flows into the liquid suction channel 21 through the check valve 12.

The sleeve assembly 2 comprises an outer sleeve 22 and an inner sleeve 23, the outer sleeve 22 is sleeved on the inner sleeve 23, the outer sleeve 22 can slide along the axial direction of the inner sleeve 23, so that the check valve 12 is abutted with the inner sleeve 23, and the check valve 12 is pushed to move, and meanwhile, the volume of the liquid suction channel 21 can be changed.

The sleeve assembly 2 is pulled out from the liquid suction channel 11, the inner sleeve 23 and the outer sleeve 22 generate axial relative motion, the inner sleeve 23 is separated from the check valve 12, the outer sleeve 22 is sealed with the inner wall of the liquid suction channel 11, and liquid in the liquid suction channel 11 is prevented from dripping.

In the installation process of the liquid storage box 1, the liquid storage box 1 gradually moves downwards, the outer sleeve 22 axially moves relative to the inner sleeve 23, the sleeve assembly 2 stretches into the liquid storage box 1, the check valve 12 in the liquid suction channel 11 is pushed to be separated from the inner wall of the liquid suction channel 11, the liquid suction channel 11 is communicated with the liquid suction channel 21, and then liquid in the liquid storage box 1 flows into the liquid suction channel 21, so that detergent is put in.

During the process of pulling out the liquid storage box 1, the liquid storage box 1 gradually moves upwards, the outer sleeve 22 axially moves relative to the inner sleeve 23, the sleeve assembly 2 is gradually separated from the check valve 12, the check valve 12 is sealed with the inner wall of the liquid suction channel 11, and the liquid suction channel 11 is not conducted with the liquid suction channel 21, so that liquid in the liquid storage box 1 is prevented from flowing out. At this time, the outer sleeve 22 is still located inside the liquid suction channel 11 and can be sealed with the inner wall of the liquid suction channel 11, so as to further prevent the liquid in the liquid suction channel 11 from dripping.

As described above, by providing the check valve 12 to seal with the inner wall of the liquid suction passage 11, leakage or reverse flow of the liquid is prevented; the sleeve assembly 2 is arranged to push the check valve 12 to be separated from the inner wall of the liquid suction channel 11, so that the liquid suction channel 11 is communicated with the liquid suction channel 21, and the liquid in the liquid storage box 1 flows to the liquid suction channel 21 for throwing; and when the liquid storage box 1 is arranged to pull out the sleeve assembly 2, the inner sleeve 23 is separated from the check valve 12, the outer sleeve 22 is sealed with the inner wall of the liquid suction channel 11, so that liquid leakage or dripping is further avoided, the malfunction of washing equipment is avoided, the use safety of the dispenser is effectively ensured, and the use experience of a user is improved.

Further, the end of the liquid suction channel 11, which is close to the inside of the liquid storage box 1, is provided with an opening, and the liquid suction channel 11 is communicated with the inside of the liquid storage box 1 through the opening, so that the liquid in the liquid storage box 1 can flow into the liquid suction channel 11.

Further, the end of the check valve 12 near the opening may extend into the opening so that the check valve 12 has a sufficient distance of travel.

Further, an elastic mechanism is sleeved at one end of the check valve 12 close to the opening, and the elastic mechanism is extruded to deform in the process of separating the check valve 12 from the inner wall of the liquid suction channel 11; after the sleeve assembly 2 is separated from the check valve 12, the elastic mechanism is reset step by step, and the check valve 12 is pushed to return to seal with the inner wall of the liquid suction channel 11.

In this embodiment, the inner wall of the liquid suction channel 11 has a concave stepped structure. One end of the check valve 12 close to the stepped inner wall is of an outer convex stepped structure matched with the inner wall of the liquid suction channel 11, and the outer end face of the check valve 12 is abutted against the stepped inner wall of the liquid suction channel 11 to realize sealing of the liquid suction channel 11.

As shown in fig. 2, in a further aspect of the present embodiment, one end of the outer sleeve 22 extends into the interior of the liquid suction channel 11, and the other end extends out of the liquid suction channel 11.

Specifically, the outer sleeve 22 may extend into the interior of the suction channel 11 near one end of the non-return valve 12. With the upward movement of the liquid storage box 1, the inner sleeve 23 is gradually separated from the check valve 12, and the outer sleeve 22 is still positioned in the liquid suction channel 11 and is sealed with the inner wall of the liquid suction channel 11, so that liquid in the liquid suction channel 11 is prevented from dripping.

Further, the other end of the outer sleeve 22 extends outside the liquid suction channel 11. Specifically, the end of the outer sleeve 22 remote from the non-return valve 12 may extend outside the access passage 11 to provide a mounting location for the sliding fit of the inner sleeve 23.

Further, the inner sleeve 23 is abutted against one end of the check valve 12 close to the inner wall of the liquid suction channel 11.

Specifically, the inner sleeve 23 is disposed near one end of the check valve 12 and extends into the interior of the access passage 11 and beyond the outer sleeve 22. Along with the downward movement of the liquid storage box 1, one end, close to the inner wall of the liquid pumping channel 11, of the check valve 12 is abutted by the inner sleeve 23, and the inner sleeve 23 can push the check valve 12 to move so as to separate the check valve 12 from the inner wall of the liquid pumping channel 11.

In the present embodiment, the inner wall of the liquid suction channel 11 near the outer sleeve 22 is provided with a concave convex structure. The part of the outer sleeve 22 extending into the liquid suction channel 11 is provided with a convex character structure, so that the outer sleeve 22 is in sealing fit with the liquid suction channel 11. And, the outside of outer sleeve 22 is equipped with protruding muscle, is equipped with the sealing washer between protruding muscle for increase the sealed of outer sleeve 22 and the inner wall of drawing liquid passageway 11.

Example two

This embodiment is a further description of the first embodiment described above.

As shown in fig. 2, in this embodiment, the sleeve assembly 2 further comprises a sealing mechanism 24.

Specifically, the sealing mechanism 24 is disposed at one end of the outer sleeve 22 extending into the liquid suction channel 11, that is, at the top of the outer sleeve 22, and is used for sealing the inner wall of the liquid suction channel 11 when the inner sleeve 23 is separated from the check valve 12, so as to prevent liquid leakage of the liquid suction channel 11.

Further, the sealing mechanism 24 is disposed around one end of the outer sleeve 22 near the liquid suction channel 11, and seals with the inner wall of the liquid suction channel 11.

In particular, the portion of the outer sleeve 22 extending into the suction channel 11 may be configured as a cylinder. The sealing mechanism 24 is arranged at the top of the outer sleeve 22 and surrounds the outer peripheral wall of the outer sleeve 22, so that the annular sealing mechanism 24 is more attached to the inner wall of the liquid suction channel 11, and the tightness of the outer sleeve 22 to the liquid suction channel 11 is improved.

In this embodiment, the portion of the outer sleeve 22 extending into the suction channel 11 may also be configured as a convex stepped structure. The sealing mechanism 24 is of a concave ladder-shaped structure corresponding to the sealing mechanism, and the top end of the outer sleeve 22 is embedded in the sealing mechanism 24, so that the outer sleeve 22 and the sealing mechanism 24 are more stably fixed, the falling-off phenomenon of the sealing mechanism 24 is prevented, and the tightness of the outer sleeve 22 is ensured.

Example III

This embodiment is a further description of the first to second embodiments described above.

As shown in fig. 2 to 3, in the present embodiment, the outer sleeve 22 includes a first sleeve portion 221 and a second sleeve portion 222.

The first sleeve portion 221 described herein is understood to be the portion of the outer sleeve 22 that extends into the access channel 11. The second sleeve portion 222 described herein is understood to mean that the outer sleeve 22 extends beyond another portion of the access passage 11.

Further, the first sleeve part 221 extends into the interior of the aspiration channel 11. Specifically, the first sleeve portion 221 extends into the interior of the pumping channel 11, seals against the inner wall of the pumping channel 11, and prevents leakage of fluid through the pumping channel 11 when the check valve 12 is separated from the inner sleeve 23.

Further, the second sleeve portion 222 is slidably fitted over the top of the inner sleeve 23. Specifically, the second sleeve portion 222 is sleeved on the inner sleeve 23, and is capable of sliding along the axial direction of the inner sleeve 23, so as to change the volume of the liquid suction channel 21.

As shown in fig. 3, in a further aspect of the present embodiment, the liquid suction passage 21 includes a first liquid suction passage 211 provided inside the first sleeve portion 221, a second liquid suction passage 212 provided inside the second sleeve portion 222, and a third liquid suction passage 213 provided inside the inner sleeve 23.

Specifically, the first sleeve portion 221 is provided with a first fluid suction channel 211, the second sleeve portion 222 is provided with a second fluid suction channel 212, the inner sleeve 23 is provided with a third fluid suction channel 213, and the first fluid suction channel 211, the second fluid suction channel 212 and the third fluid suction channel 213 are mutually communicated to form a fluid suction channel 21 with a variable volume.

Further, the first liquid suction channel 211 communicates with the liquid suction channel 11.

Specifically, the first liquid suction channel 211 is provided with an opening at one end near the liquid suction channel 11. After the first push rod pushes the check valve 12 to be separated from the inner wall of the liquid suction channel 11, the opening of the first liquid suction channel 211 is communicated with the liquid suction channel 11, so that the liquid in the liquid suction channel 11 flows to the first liquid suction channel 211 through the opening, and the liquid is thrown in.

In this embodiment, the end of the third suction channel 213 adjacent to the second suction channel 212 is provided with an opening, which extends through the third suction channel 213. The third liquid suction channel 213 is communicated 11 with the second liquid suction channel 212, the first liquid suction channel 211 and the liquid suction channel through openings, so that liquid flows into the dispenser for dispensing.

In this embodiment, the outer sleeve 22 is internally provided with a resilient mechanism. When the liquid storage box 1 is installed, the outer sleeve 22 is pushed to move downwards, and the elastic mechanism is extruded to deform. When the liquid storage box 1 is pulled out, the elastic mechanism returns to the original position, and the outer sleeve 22 is pushed to move upwards to return.

Further, the first sleeve part 221 is pulled out from the liquid sucking channel 11, the inner sleeve 23 and the outer sleeve 22 move axially relative to each other, the volume of the second liquid sucking channel 212 increases, a pressure difference is generated between the second liquid sucking channel and the liquid sucking channel 11, and the liquid is sucked to flow into the first liquid sucking channel 211.

During the mounting process of the liquid storage box 1, the liquid storage box 1 is gradually inserted into the first sleeve part 221, the first sleeve part 221 and the second sleeve part 222 are pushed to slide downwards, the elastic mechanism is extruded to deform, and meanwhile, the volume of the second liquid suction channel 212 is gradually reduced, so that the gas of the liquid suction channel 21 is discharged. The inner sleeve 23 is contacted with the check valve 12 and pushes the check valve 12 to be separated from the inner wall of the liquid suction channel 11, so that the liquid suction channel 11 is communicated with the liquid suction channel 21, and liquid flows into the liquid suction channel 21 for liquid feeding.

In the process of pulling out the liquid storage box 1, the liquid storage box 1 gradually pulls out the first sleeve part 221, the elastic mechanism starts to return, the first sleeve part 221 and the second sleeve part 222 are pushed to slide upwards, the volume of the second liquid suction channel 212 is gradually increased, the pressure in the liquid suction channel 21 is further reduced, and a pressure difference is generated between the liquid suction channel 11 and the liquid suction channel 11, so that residual liquid in the liquid suction channel 11 and on the sealing mechanism 24 is sucked to flow to the liquid suction channel 21, and the liquid is further prevented from dripping or leaking from the liquid suction channel 11 when the liquid storage box 1 is pulled out.

In a further aspect of this embodiment, as shown in fig. 3, the cross-sectional area of the second aspiration channel 212 is greater than the cross-sectional area of the first aspiration channel 211.

Specifically, the first suction passage 211 communicates with the second suction passage 212. The cross-sectional area of the second pipetting channel 212 is larger than the cross-sectional area of the first pipetting channel 211, i.e. the volume of the first pipetting channel 211 is smaller than the volume of the second pipetting channel 212. Since the volume of the first liquid suction channel 211 is small, the liquid flowing in from the liquid suction channel 11 is squeezed by the inner wall of the first liquid suction channel 211, thereby accelerating the flow speed of the liquid. The second liquid suction channel 212 has a larger volume, so that a larger volume of liquid can be temporarily stored in the second liquid suction channel 212, the flow of the liquid is slowed down, and the quantitative delivery of the dispenser is more facilitated.

Further, the cross-sectional area of the third aspiration channel 213 is smaller than the cross-sectional area of the second aspiration channel 212 and larger than the cross-sectional area of the first aspiration channel 211.

Likewise, the third suction passage 213 communicates with the second suction passage 212. The cross-sectional area of the third pipetting channel 213 is smaller than the cross-sectional area of the second pipetting channel 212, i.e. the volume of the third pipetting channel 213 is smaller than the volume of the second pipetting channel 212. Since the volume of the third suction passage 213 is small, the liquid flowing in from the second suction passage 212 is pressed by the inner wall of the third suction passage 213, thereby accelerating the flow rate of the liquid.

In this embodiment, the outer sleeve 22 has a concave stepped configuration. The end of the inner sleeve 23 adjacent the outer sleeve 22 is provided with a mating, outwardly convex stepped configuration. The outer sleeve 22 stretches into one end of the liquid suction channel 11, and after the outer sleeve 22 is in butt joint with the inner wall of the liquid suction channel 11 and is sealed, the stretching part of the outer sleeve 11 is in butt joint with the stretching part of the inner sleeve 23 in a stepped structure, so that the limit of the outer sleeve 22 is realized, and the outer sleeve 22 is prevented from misplacement or movement.

Example IV

This embodiment is a further description of the above embodiments one to three.

As shown in fig. 3, in the present embodiment, the inner sleeve 23 further includes a push rod 231, and the push rod 231 is disposed inside the inner sleeve 23.

The carrier rod 231 described herein is understood to be a member that abuts the check valve 12 and pushes the check valve 12 apart.

Specifically, when the liquid suction channel 11 of the liquid storage box 1 is in contact with the outer sleeve 22, along with the installation of the liquid storage box 1, the outer sleeve 22 is pushed to slide until the outer sleeve 22 is sealed with the inner wall of the liquid suction channel 11, and the liquid storage box 1 continues to move downwards, so that the top inside the inner sleeve 23 is abutted with the check valve 12.

Further, one end of the push rod 231 extends out of the outer sleeve 22 to push the check valve 12 to be separated from the inner wall of the liquid suction channel 11.

Specifically, the end of the push rod 231 near the check valve 12 may extend out of the outer sleeve 22. Along with the downward movement of the liquid storage box 1, the ejector rod 231 is abutted with one end of the check valve 12 close to the inner wall of the liquid pumping channel 11, and the ejector rod 231 can push the check valve 12 to move so as to separate the check valve 12 from the inner wall of the liquid pumping channel 11. Along with the upward movement of the liquid storage box 1, the ejector rod 231 and one end of the check valve 12 close to the inner wall of the liquid suction channel 11 are gradually separated, and the check valve 12 is sealed with the inner wall of the liquid suction channel 11 to prevent liquid from leaking through a gap of the check valve 12.

In this embodiment, the push rod 231 may be divided into an upper end and a lower end, and the cross-sectional area of the upper end is smaller than that of the lower end.

Specifically, the cross-sectional area of the upper end of the push rod 231 is smaller than the cross-sectional area of the lower end, that is, the diameter of the upper end of the push rod 231 is smaller than the diameter of the lower end. So arranged, since the upper end of the push rod 231 is positioned inside the first liquid suction channel 211 and the second liquid suction channel 212, the cross-sectional area of the first liquid suction channel 211 is smaller, and the cross-sectional area of the upper end of the push rod 231 is smaller, the push rod 231 is ensured to have sufficient movable space, and the sliding of the outer sleeve 22 is not hindered; and, the volume of the second liquid suction channel 212 is changeable, the cross-sectional area of the upper end of the push rod 231 is smaller, the volume of the second liquid suction channel 212 can be occupied less, and the liquid capacity of the second liquid suction channel 212 is increased. And the cross-sectional area of the lower end of the push rod 231 is larger, so that the push rod 231 and the inner sleeve 23 are conveniently fixed, and the movement stability of the push rod 231 is improved.

Example five

This embodiment is a further description of the first to fourth embodiments described above.

As shown in fig. 3, in this embodiment, the dispenser further comprises a support frame 3.

Specifically, the support frame 3 is arranged outside the liquid storage box 1, namely, the support frame 3 is arranged below the liquid storage box 1 and is in butt joint with a part, close to the sleeve assembly 2, of the liquid storage box 1, so that the liquid storage box 1 is supported, the liquid storage box 1 is prevented from moving or misplacement, and the stability of the liquid storage box 1 is kept.

Further, the support 3 further includes a liquid collecting portion 31, and the liquid collecting portion 31 is formed by partially recessing the support 3.

Specifically, the partial inward recess of the support frame 3 forms a liquid collecting portion 31, and has a certain depth. So configured, when the cartridge 1 is pulled out of the sleeve assembly 2, the check valve 12 gradually returns to seal against the inner wall of the access channel 11, but there may still be some liquid dripping from the slit. The liquid collecting portion 31 is provided outside the sleeve assembly 2 for collecting liquid leaked from the liquid suction passage 11 when the sleeve assembly 2 is separated from the check valve 12, and preventing the detergent from dropping or leaking.

Further, a through hole 311 is formed through the bottom of the liquid collecting portion 31, and an inner peripheral wall of the through hole 311 is connected to an outer peripheral wall of the sleeve assembly 2.

Specifically, the liquid collecting portion 31 has a concave cavity structure, a through hole 311 penetrates through the bottom of the liquid collecting portion 31, and an inner peripheral wall of the through hole 311 is connected with an outer peripheral wall of the sleeve assembly 2, so that the liquid collecting portion 31 and the sleeve assembly 2 are fixed.

In another aspect of this embodiment, the liquid collecting portion 31 extends from the peripheral wall of the sleeve assembly 2 along a direction perpendicular to the sleeve assembly 2, and then extends near the liquid storage box 1 along a direction parallel to the sleeve assembly 2, so as to form a concave cavity structure with a certain depth.

In this embodiment, the liquid collecting portion 31 is detachably disposed inside the support frame 3.

Specifically, when the liquid collected in the liquid collecting portion 31 is more, the user needs to clean the liquid collecting portion 31 periodically, and can detach the liquid collecting portion 31 alone to clean, so that the pollution of the liquid collecting portion 31 caused by liquid residue is prevented, and the use experience of the user is improved.

Example six

This embodiment is a further description of the above embodiments one to five.

As shown in fig. 4 to 5, in the present embodiment, the dispenser further includes a dispensing pump 4, and the dispensing pump 4 includes a liquid suction port 41 and a liquid discharge port 42.

Further, the liquid suction port 41 communicates with the liquid suction passage 21, and the liquid discharge port 42 communicates with an external device.

Specifically, after the liquid storage box 1 is inserted into the sleeve assembly 2, the sleeve assembly 2 pushes the check valve 12 to be separated from the inner wall of the liquid suction channel 11, so that the liquid flows into the liquid suction channel 21 communicated with the liquid suction channel 11. The dispensing pump 4 is in a working state, liquid in the suction liquid suction channel 21 enters the dispensing pump 4 through the liquid suction port 41 and is then dispensed into communicated external equipment through the liquid discharge port 42 of the dispensing pump 4, so that the dispensing process of the liquid is realized.

The foregoing description is only illustrative of the preferred embodiment of the present utility model, and is not to be construed as limiting the utility model, but is to be construed as limiting the utility model to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the utility model, may be made by those skilled in the art without departing from the scope of the utility model.

Claims

1. An anti-drip dispenser, comprising: the liquid storage box is provided with a liquid suction channel, a check valve is arranged in the liquid suction channel, and one end of the check valve is sealed with the inner wall of the liquid suction channel;

2. The drip resistant dispenser of claim 1 wherein one end of said outer sleeve extends into the interior of said pump passage and the other end extends out of the exterior of said pump passage; the inner sleeve is abutted with one end of the check valve, which is close to the inner wall of the liquid suction channel.

3. The drip resistant dispenser of claim 2 wherein the sleeve assembly further comprises a sealing mechanism disposed at an end of the outer sleeve extending into the interior of the fluid evacuation passageway for sealing against the interior wall of the fluid evacuation passageway when the inner sleeve is separated from the check valve;

4. A drip resistant dispenser according to any one of claims 1-3, wherein the outer sleeve comprises a first sleeve portion extending into the interior of the access passage and a second sleeve portion slidably received over the top of the inner sleeve.

5. The drip resistant dispenser of claim 4 wherein said fluid intake passage comprises a first fluid intake passage disposed within the first sleeve portion, a second fluid intake passage disposed within the second sleeve portion, and a third fluid intake passage disposed within the inner sleeve portion; the first liquid suction channel is communicated with the liquid suction channel;

6. The drip resistant dispenser of claim 5 wherein said second fluid extraction channel has a cross-sectional area greater than a cross-sectional area of said first fluid extraction channel; the cross-sectional area of the third imbibition channel is smaller than the cross-sectional area of the second imbibition channel and larger than the cross-sectional area of the first imbibition channel.

7. The drip resistant dispenser of claim 1 wherein said inner sleeve further comprises a push rod disposed within said inner sleeve, one end of said push rod extending beyond said outer sleeve to push said check valve away from the inner wall of said fluid evacuation passageway.

8. A drip resistant dispenser according to any one of claims 1-3, further comprising a support frame disposed outside the reservoir for supporting the reservoir.

9. The drip resistant dispenser of claim 8, wherein the support shelf further comprises a liquid collection portion formed by a partial depression of the support shelf; the bottom of the liquid collecting part is penetrated with a through hole, and the inner peripheral wall of the through hole is connected with the outer peripheral wall of the sleeve assembly.

10. A washing apparatus comprising a drip resistant dispenser according to any one of claims 1 to 9.