WO2022193831A1

WO2022193831A1 - Liquid guide structure of liquid storage box, additive dispensing module, and washing machine

Info

Publication number: WO2022193831A1
Application number: PCT/CN2022/072850
Authority: WO
Inventors: 刘尊安; 朱国防; 卢立群; 宁虎; 张红伟
Original assignee: 青岛海尔洗衣机有限公司; 海尔智家股份有限公司
Priority date: 2021-03-16
Filing date: 2022-01-20
Publication date: 2022-09-22
Also published as: CN115074962A; JP2024518678A

Abstract

A liquid guide structure of a liquid storage box, an additive dispensing module, and a washing machine. The liquid guide structure comprises: a box body connection unit (3) mounted at a dispensing port of the liquid storage box (1), the dispensing port being closed in a normal state; a liquid guide insertion unit (2) provided on an insertion groove (51) for allowing the liquid storage box (1) to be mounted, the liquid guide insertion unit (2) and the box body connection unit (3) being in insertion fit to open the dispensing port after the liquid storage box (1) is mounted in the insertion groove (51); and an elastic sealing unit (4) comprising an elastic member (41) and a sealing member (42), the sealing member (42) abutting against a fit clearance between the liquid guide insertion unit (2) and the box body connection unit (3) under the action of the elastic member (41). By means of the fit between the elastic member (41) and the sealing member (42), the sealing member (42) can abut against the fit clearance between the liquid guide insertion unit (2) and the box body connection unit (3), so that the overall sealing performance of the liquid guide structure is better, and the phenomenon of additive leakage of the liquid storage box (1) is effectively avoided. Moreover, the elastic member can also apply an elastic pushing force to the liquid storage box (1) to assist in ejection of the liquid storage box (1), so that the liquid storage box (1) can be pulled out more easily and smoothly, and the use experience is better.

Description

A liquid guiding structure of a liquid storage box, an additive injection module and a washing machine

technical field

The invention belongs to the technical field of adding additives to clothes, and in particular relates to a liquid guiding structure of a liquid storage box, an additive feeding module and a washing machine.

Background technique

The additive delivery methods commonly used in existing washing machines, especially pulsator washing machines, include the following two:

One is that the user directly puts the additive into the tub of the washing machine, which is inconvenient to control the amount of the additive. It is easy to cause problems such as fading of clothes.

The other is to set a liquid storage box on the washing machine. The user pre-injects the additives into the liquid storage box in advance, and uses the washing machine to flush the additives into the washing tub to realize the automatic dispensing of the additives. The above-mentioned dispensing method can realize the additive dispensing. Precise control of the amount, and the additives can be fully mixed with the incoming water before being put into the laundry tub.

For example, Application No. 201710684754.7 is a washing machine, comprising a control panel base and an additive feeding system arranged on the control panel base, the additive feeding system includes at least one feeding unit, wherein a feeding unit includes a sealed container for containing the additive and extracting and feeding the additive into a The automatic feeding mechanism of the washing bucket, the container is externally detachably installed above the control panel base, and the control panel base is provided with a mounting part for placing the container and a liquid-conducting connection part that communicates with the container to export the additive, and the liquid-conducting connection part is connected with the container. Automatic placement agency connection.

The liquid outlet of the washing machine container disclosed in the above application is provided with a liquid outlet structure. The liquid outlet structure is provided with a one-way valve. The one-way valve includes a drainage channel and a piston arranged in the drainage channel. Open the piston in the channel to open the liquid outlet. When the liquid-guiding connecting part pushes the piston open, the additive in the container will enter the liquid-guiding cavity between the liquid-guiding connection part and the liquid-guiding connecting part through the drainage channel. The ineffective sealing structure between the two leads to the leakage of the additives in the liquid guide cavity from the gap between the two, which affects the user experience.

In view of this, the present invention is proposed.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a liquid guiding structure of a liquid storage box. The sealing performance of the liquid-conducting structure is better, which effectively avoids the phenomenon of additive leakage in the process of putting the liquid-storage box into place.

In order to solve the above-mentioned technical problems, the basic conception of the technical scheme adopted in the present invention is:

A liquid guiding structure of a liquid storage box, comprising:

The box body connection unit is installed at the injection port of the liquid storage box, and the injection port is normally closed;

The liquid-conducting plug-in unit is arranged on the plug-in groove for the liquid storage box to be installed. After the liquid storage box is installed in the plug-in groove, the liquid-conducting plug-in unit and the box body connecting unit are plugged and matched to open the injection port;

The elastic sealing unit includes an elastic member and a sealing member, and the sealing member tightly presses against and blocks the matching gap between the liquid-conducting plug-in unit and the box body connection unit under the action of the elastic member.

Further, the liquid guide plug-in unit includes a plug-in portion, and the box body connection unit has a guide channel inside, and the guide channel is provided with a top-stop action of the plug-in portion to open the injection port and close the injection port under normal conditions. the valve body;

Under the action of the elastic element, the sealing member tightly blocks the fitting gap between the outer peripheral wall of the plug-in portion and the guide channel.

Further, the elastic member is compressed and arranged between the liquid-conducting plug-in unit and the outer end wall of the box body connecting unit, the plug-in part extends into the guide channel, and the front end has a top-stop matching with the valve body to open. The top stop of the injection port;

One end of the sealing member is sealingly connected to the peripheral wall of the plug portion close to the top stop, and the other end extends away from the top stop, and is pressed against the outer end wall of the box body connection unit under the action of the elastic member to form a seal.

Further, the box body connection unit includes a connecting sleeve, one end of which is located outside the liquid storage box to cooperate with the plug-in part, and the other end extends into the liquid storage box. The plug-in part is a mandrel whose outer diameter is smaller than the inner diameter of the connecting sleeve;

A sealing groove is provided on the peripheral wall of the front end of the ejector rod, and the sealing member includes an annular sealing portion that is squeezed and limited in the sealing groove, and an annular sealing portion that is pressed against the outer end wall of the connecting sleeve under the action of the elastic member. a pressing portion, and an annular blocking portion connected between the annular sealing portion and the annular pressing portion;

Preferably, the annular sealing part, the annular blocking part and the annular pressing part are all made of rubber material.

Further, the annular blocking part is a curved stretching wall connected between the annular sealing part and the annular pressing part and formed by at least one bending, and the curved stretching wall blocks the outer peripheral wall of the ejector rod and the connecting sleeve. Fitting clearance between tubes.

Further, the annular sealing portion includes a cylindrical first sealing wall adapted to the outer circumference of the ejector rod, one end of the first sealing wall is fixedly connected with the annular sealing portion, and the other end is facing upward. The root direction of the rod extends for a certain length and then reversely bends and extends to form a second blocking wall;

The annular pressing portion has an annular pressing body, the second blocking wall is connected to the pressing body, and the extension length of the first blocking wall is greater than that of the connection between the outer end wall of the sleeve and the annular seal. the distance between the

Preferably, the inner end surface of the pressing body is tightly abutted on the outer end wall of the connecting sleeve, and the second blocking wall is connected to the inner peripheral wall of the pressing body at a position close to the inner end wall surface, The second blocking wall is gradually inclined outward from the end of the first blocking wall;

More preferably, the length of the second blocking wall in the horizontal direction is greater than the thickness of the pressing body.

Further, the annular pressing portion includes an annular pressing body and one or more sealing ribs connected to the inner end surface of the pressing body, and the sealing ribs are pressed against the connection under the action of the elastic member. on the outer end wall of the casing;

Preferably, the sealing rib is gradually inclined outward from the root.

Further, the liquid-conducting plug-in unit further includes a liquid-guiding portion fixedly arranged on the plug-in groove, the plug-in portion is fixedly connected to the side wall of the liquid-guiding portion, and one end of the elastic member is fixed. On the liquid guiding part and/or the plug-in part, the other end is compressed and abutted on the sealing member;

Preferably, the elastic member is a spring arranged in compression between the liquid-guiding portion and the sealing member.

Further, the spring is sleeved on the outside of the ejector rod, and is compressed between the liquid guiding portion and the annular pressing portion. The spring limit is installed in the annular snap groove.

Another object of the present invention also provides an additive delivery module, which has at least one plug slot, and a liquid storage box is installed in the plug slot, and the liquid storage box has a closed chamber for additive storage;

The additive dosing module further includes a dosing unit, and the dosing unit communicates with the dosing port of the liquid storage box through the above-mentioned liquid guiding structure.

Another object of the present invention is to provide a washing machine, which realizes the automatic dosing of additives through the above-mentioned additive dosing module.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

1. In the present invention, through the cooperation of the elastic member and the sealing member, the sealing member can be tightly abutted and blocked at the matching gap between the liquid-conducting plug-in unit and the box body connecting unit, so that the sealing performance of the entire liquid-conducting structure is better and effectively. Avoid the phenomenon of additive leakage during the delivery of the liquid storage box.

2. In the present invention, the seal is composed of three parts: an annular seal part, an annular abutting part and an annular blocking part, wherein: the annular seal part is squeezed and limited in the sealing groove of the plug-in part to realize the connection between the seal part and the plug-in part. Sealing, the annular pressing part is pressed against the end face of the box body connecting unit under the action of the elastic part to achieve sealing, and the annular blocking part seals the gap between the plug-in part and the guide channel. By adopting the above structure, the sealing member of the present invention can seal the fitting gap between the liquid-conducting plug-in unit and the elastic sealing unit in all directions, and the sealing effect is better.

3. In the present invention, the annular blocking part adopts a curved tensile wall structure formed by one or more times of bending, so that the annular blocking part has good tensile performance and stretching space, and can adapt to the plug-in part. The gap distance between the outer peripheral wall and the box body connection unit is different, and the adaptability is high. In addition, the annular blocking part can adapt to the front and rear movement of the box body connecting unit through the adopted curved and stretched wall structure. Whether it is inserting, pulling out or pushing and pulling the liquid storage box, it can ensure the formation of the liquid-conducting plug-in unit. good seal.

4. There is no interference fit between the plug-in part and the diversion channel of the present invention, there is a gap between the two, and there is no damping force, which makes it easier and smoother to insert or pull out the liquid storage box. When replacing the liquid storage box, the elastic member can also apply a pushing force to the liquid storage box to assist its ejection. When the push bomb is unlocked, the user only needs to provide a small initial thrust to easily and smoothly pull out the liquid storage box. Improve user experience.

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Description of drawings

The accompanying drawings, as a part of the present invention, are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings in the following description are only some embodiments, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

In the attached image:

Fig. 1 is the structural principle diagram of the additive injection module in the embodiment of the present invention;

Fig. 2 is the enlarged view of A place of Fig. 1;

3 is a partial cross-sectional view of an additive delivery module in an embodiment of the present invention;

Fig. 4 is an enlarged view at B of Fig. 3;

FIG. 5 is a schematic structural diagram of a sealing member in an embodiment of the present invention.

In the picture:

1. Liquid storage box;

2. Liquid-conducting plug-in unit; 21. Inserting part; 211. Sealing groove; 22. Liquid-conducting part; 23. First sealing ring;

3. The box body connection unit; 3a, the outer end wall;

31. Connecting sleeve; 32. Valve body; 33. Second spring; 34. Second sealing ring;

4. Elastic sealing unit;

41. Elastic parts;

42, sealing element; 421, annular sealing part; 422, annular blocking part; 4221, first blocking wall; 4222, second blocking wall;

423, annular pressing part; 4231, sealing rib; 4232, annular snap groove;

5. Additive injection module; 51. Insertion slot.

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

Detailed ways

In order to make the purposes, 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 to illustrate the present invention , but 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", "front", "rear", "left", "right", "vertical", "horizontal", "inside", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, It is constructed and operated in a particular orientation and is therefore not to be construed as a limitation of the present invention.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, Or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The present invention will be further described in detail below in conjunction with the embodiments.

As shown in FIG. 1 to FIG. 5 , an embodiment of the present invention provides a liquid guiding structure for a liquid storage box. The liquid guiding structure includes: a box body connecting unit 3 , which is installed at the injection port of the liquid storage box 1 and is normally The injection port is closed down; the liquid-conducting plug-in unit 2 is arranged on the plug-in slot 51 for the liquid storage box 1 to be installed. After the liquid storage box 1 is installed in the plug-in groove 51, the liquid-conducting plug-in unit 2 It is inserted and matched with the box body connecting unit 3 to open the injection port for injection.

In the above solution, the liquid-conducting plug-in unit 2 may be integrally disposed on the plug-in groove 51 , for example, the liquid-conducting plug-in unit 2 may be integrally injection-molded and disposed on the plug-in groove 51 . Alternatively, the liquid-conducting plug-in unit 2 can also be fixedly installed on the plug-in slot 51 through a connecting structure, for example, the liquid-conducting plug-in unit 2 can be fixedly installed on the plug-in socket 51 by means of screws, snaps, bonding, etc. into the groove 51 .

Further, the liquid guiding structure of the liquid storage box described in this embodiment further includes an elastic sealing unit 4, including an elastic member 41 and a sealing member 42, and the sealing member 42 tightly abuts the sealing member 42 under the action of the elastic member 41. Describe the fitting clearance between the liquid-conducting plug-in unit 2 and the box body connecting unit 3 .

In this embodiment, through the cooperation between the elastic member 41 and the sealing member 42, the sealing member 42 can be tightly pressed against the fitting gap between the liquid-conducting plug-in unit 2 and the box body connecting unit 3, so that the overall sealing performance of the liquid-conducting structure is improved. Well, the phenomenon of additive leakage in the liquid storage box 1 is effectively avoided.

Further, the outer periphery of the box body connecting unit 3 is sealed and installed in the injection port, and the inside of the box body connecting unit 3 has a first guide channel that communicates with the interior of the liquid storage box 1, and the liquid guide is inserted The unit 2 includes a plug-in portion 21, and the box body connection unit 3 has a first diversion channel inside, and the first diversion channel is provided with a top-stop action of the plug-in part 21 to open the injection port and close the injection port under normal conditions. valve body 32 .

Specifically, as shown in FIG. 2 and FIG. 4 , the first diversion channel is divided into two parts, including a first channel and a second channel that communicate with each other, the inner diameter of the second channel is smaller than that of the first channel, and the The plug-in portion 21 is plug-fitted with the first channel. A valve cavity for the valve body 32 to be installed is formed inside the second channel, the valve body 32 is arranged in the second channel, and normally closes the second channel. The second channel is communicated with the inner chamber of the liquid storage box 1, and an annular sealing boss is provided on the inner peripheral wall of the second channel near the side of the first channel.

The valve body 32 includes a valve plug and a second spring 33, the second spring 33 is compressed and arranged in the second passage, one end of the second spring 33 is in contact with the valve plug, and the other end is compressed and abutted on the valve plug. on the limit boss in the second channel. Under normal conditions, the valve plug can be pressed against the annular sealing boss under the action of the second spring 33 to form a seal to prevent the additive in the liquid storage box 1 from overflowing from the first guide channel.

Preferably, a second sealing ring 34 is provided at the position where the valve plug is matched with the annular sealing boss. The provided second sealing ring 34 further ensures the sealing performance of the inner valve cavity of the second passage to avoid normal The additive in the lower second channel overflows from the gap between the outer peripheral wall of the valve plug and the sealing boss, so that the entire liquid storage box 1 forms a closed sealed chamber.

In the throwing state, as shown in FIGS. 1 and 3 , after the liquid storage box 1 is inserted into the insertion slot 51 , the insertion portion 21 extends into the first channel, and the The abutment end of the front end pushes open the valve body 32 , so that a gap for the additive in the second channel to flow into the first channel is formed between the valve body 32 and the annular sealing boss. The plug-in part 21 has a second guide channel inside the plug-in part 21 that communicates with the first channel. Under the suction effect of the dosing unit, the additive flowing into the first channel is guided through the second guide channel of the plug-in part 21 . out for delivery.

Since there is a certain gap between the first channel and the plug-in portion 21, the additive entering the first channel can easily leak from the gap between the two. Therefore, the liquid-conducting structure provided in this example is provided with the function of the elastic member 41. The sealing member 42 that tightly blocks the fitting gap between the outer peripheral wall of the plug-in portion 21 and the first flow guide channel is pressed down.

In this embodiment, the side wall of the liquid storage box 1 is provided with the injection port, the outer periphery of the injection port is integrally injected with an installation interface structure, and one end of the box body connecting unit 3 is sealed and connected to the installation interface Structurally, the other end extends into the liquid storage box 1 .

In this embodiment, the box body connection unit 3 may be connected with the installation interface structure by screw connection or by snap connection.

Preferably, as shown in FIG. 1 to FIG. 4 , in this embodiment, the box body connecting unit 3 is connected and fixed with the installation interface structure by means of snap connection, and the installation interface structure is formed by the circumferential direction of the injection port. The rim extends horizontally outward.

The box body connecting unit 3 has a cylindrical body. The outer end wall 3a of the box body connecting unit 3 close to the side of the installation interface structure extends a certain distance to the outer peripheral direction and then reversely bends to form a folded and clamped wall. A limit groove is formed between the folded and clamped wall and the peripheral wall of the box body connecting unit 3 to be clamped on the installation interface structure, and the installation interface structure is clamped in the limit groove. The snap fit restricts the displacement of the box body connecting unit 3 in the vertical direction, and improves the stability of the fit between the two.

Preferably, one or more clamping ribs are provided on the inner peripheral wall of the folded and clamped wall, and the outer peripheral wall of the installation interface structure is correspondingly provided with matching ribs for clamping. Through the snap fit of the snap rib and the fit rib, the stability of the fit between the box body connecting unit 3 and the mounting interface structure is further ensured, and the box body connecting unit 3 is limited in the axial direction at the same time. The displacement can also play a certain sealing role.

More preferably, a first sealing ring 23 is provided between the inner peripheral wall of the installation interface structure and the box body connecting unit 3. The annular installation groove of the ring 23, the first sealing ring 23 is squeezed and arranged between the annular installation groove and the inner peripheral wall of the installation interface structure. The provided first sealing ring 23 ensures the tightness between the box body connecting unit 3 and the injection port, and prevents the additive in the liquid storage box 1 from leaking out through the gap between the two.

In this embodiment, the elastic member 41 is compressed and arranged between the liquid-conducting plug-in unit 2 and the outer end wall 3 a of the box body connecting unit 3 , the plug-in portion 21 extends into the first guide channel, and The front end has a top stop that cooperates with the valve body 32 to open the injection port. The sealing member 42 is in the shape of a ring. One end of the sealing member 42 is sealingly connected to the peripheral wall of the plug-in portion 21 close to the top end stop, and the other end extends away from the top end stop, and is pressed against the elastic member 41 under the action of the elastic member 41 . A seal is formed on the outer end wall 3a of the box body connecting unit 3 .

Since the plug-in portion 21 and the first diversion channel are plug-fitted, there needs to be a certain movement gap between the two to facilitate pulling out the liquid storage box 1 to replace the liquid storage box 1 or adding additives. The sealing member 42 has a certain elasticity, one end is sealingly connected to the front side peripheral wall of the plug-in portion 21 , and the other end is pressed against the outer end wall of the box body connecting unit 3 under the action of the elastic member 41 . 3a on. Compared with directly setting the sealing ring to squeeze and seal between the first diversion channel and the plug-in portion 21, there is no damping force between the two, and it is easier and smoother to insert or pull out the liquid storage box 1 .

Further, the box body connecting unit 3 includes a connecting sleeve 31 whose one end is located outside the liquid storage box 1 to cooperate with the plug-in portion 21 , and the other end extends into the liquid storage box 1 . With a first diversion channel, the connecting sleeve 31 includes a first connecting tube and a second connecting tube with a reduced inner diameter, a first channel is formed in the first connecting tube, and a second channel is formed in the second connecting tube.

As shown in FIG. 3 and FIG. 4 , the plug portion 21 is an ejector rod with an outer diameter smaller than the inner diameter of the connecting sleeve 31 , and the ejector rod has a second diversion channel in communication with the first channel, so The front end of the ejector rod is provided with a top-stopping convex tip, and the top-stopping convex tip is matched with the valve plug to push the valve plug, open the first guide channel, and then The delivery port is opened for delivery.

Specifically, the extension direction of the top rod is consistent with the extension direction of the first diversion channel, the top rod is a horizontally arranged cylindrical rod, the top rod has a horizontal interface, the horizontal The interface is located above the horizontal plane where the central axis of the ejector rod is located, and the horizontal interface divides the ejector bar into an upper half and a lower half, and the second guide channel is along the length direction of the ejector bar Open in the upper part of the ejector rod. The top stop convex tip is fixedly arranged on the end of the lower half of the top rod close to the valve body 32 side, the top stop convex tip is a boss protruding from the end of the top rod. The platform is matched with the valve body 32 to stop the top, and the valve body 32 is pushed open to realize the delivery.

In this embodiment, as shown in FIG. 2 , FIG. 4 , and FIG. 5 , a sealing groove 211 is provided on the peripheral wall of the front end of the ejector rod, and the sealing member 42 includes an annular sealing portion that is squeezed and limited in the sealing groove 211 421, and the annular abutting portion 423 that is pressed against the outer end wall 3a of the connecting sleeve 31 under the action of the elastic member 41, and the annular blocking portion 422 connected between the annular sealing portion 421 and the annular abutting portion 423 .

In the embodiment of the present invention, the sealing member 42 is composed of three parts: the annular sealing part 421 , the annular pressing part 423 and the annular blocking part 422 . By adopting the above structure, the matching gap between the liquid-conducting plug-in unit 2 and the elastic sealing unit 4 can be adjusted. All-round sealing, better sealing effect.

Preferably, the annular sealing portion 421 , the annular blocking portion 422 and the annular pressing portion 423 are all made of rubber material, and the sealing member 42 made of rubber material not only has good sealing performance, but also has low cost. The annular sealing portion 421 , the annular blocking portion 422 and the annular pressing portion 423 are integrally formed.

In one embodiment, the annular blocking portion 422 is a curved tensile wall connected between the annular sealing portion 421 and the annular pressing portion 423 and formed by at least one bending, and the curved tensile wall blocks the Matching clearance between the outer peripheral wall of the ejector rod and the connecting sleeve 31 . In this embodiment, the annular blocking portion 422 adopts a curved stretched wall formed by bending one or more times, so that the annular blocking portion 422 has good tensile performance and has a large expansion space. It can adapt to the different gap distances between the outer peripheral wall of the ejector rod and the connecting sleeve 31 , even if the gap between the two is relatively large, it can still be blocked to ensure the sealing effect, and has high adaptability.

Since the box body connecting unit 3 moves back and forth relative to the plugging part 21 during the plugging process, the curved and stretched wall structure adopted by the annular blocking part 422 in the embodiment of the present invention can adapt to the box body connecting unit The back and forth movement of 3 , whether the liquid storage box 1 is inserted, pulled out, or pushed and pulled, can ensure a good seal with the liquid-conducting plug-in unit 2 .

Further, as shown in FIGS. 4 and 5 , the annular blocking portion 422 includes a cylindrical first blocking wall 4221 adapted to the outer circumference of the top rod. The first blocking wall 4221 One end is fixedly connected with the annular sealing portion 421, and the other end extends to a certain length in the direction of the root of the ejector rod, and then bends and extends in the opposite direction to form a second blocking wall 4222. The first blocking wall 4221 and the second blocking wall 4222 are common. The curved stretch wall is formed.

In this embodiment, the annular sealing portion 421 is a sealing convex ring protruding from the inner peripheral wall of the first blocking wall 4221 close to the valve body 32 side, and the sealing convex ring is squeezed and limited to the top rod In the sealing groove 211 provided on the peripheral wall of the front end, a sealing connection is formed with the ejector rod.

In this embodiment, the annular pressing portion 423 has an annular pressing body, the end of the second blocking wall 4222 is fixedly connected to the pressing body, and the extension length of the first blocking wall 4221 It is greater than the distance between the outer end wall 3a of the connecting sleeve 31 and the annular sealing part 421, so as to ensure that the annular sealing part 422 has a large expansion space, which can block the matching gap between the ejector rod and the first channel, and prevent the Will be affected by the movement of the reservoir 1.

Preferably, the inner end surface of the pressing body is tightly pressed against the outer end wall 3a of the connecting sleeve 31, and the second blocking wall 4222 is connected to the inner peripheral wall of the pressing body close to the inner end wall. The second blocking wall 4222 is gradually inclined outward from the end of the first blocking wall 4221 , and the second blocking wall 4222 is shaped like a truncated cone.

More preferably, the length of the second blocking wall 4222 in the horizontal direction is greater than the thickness of the pressing body, so that the overlapping part of the second blocking wall 4221 and the second blocking wall 4222 is longer, and the space for extension is longer. is larger, and the adaptive sealing ability is higher.

In another preferred embodiment, as shown in FIGS. 2 and 4 , the annular pressing portion 423 includes a ring-shaped pressing body and one or more channels connected to the inner end surface of the pressing body The sealing rib 4231 is tightly pressed against the outer end wall 3 a of the connecting sleeve 31 under the action of the elastic member 41 .

Through the sealing rib 4231 disposed on the inner end surface of the pressing body, the sealing rib 4231 is pressed against the outer end wall 3a of the connecting sleeve 31, and the annular pressing portion 423 and the connecting sleeve can be further lifted 31 seal between the outer end walls 3a.

Preferably, the sealing rib 4231 is gradually inclined outward from the root. Through the above arrangement, the lower wall surface of the sealing rib 4231 can more easily and tightly fit on the outer side of the connecting sleeve 31 under the action of external force. on the outer wall of the end wall 3a to form a better sealing effect.

As shown in FIG. 1 and FIG. 3 , in this embodiment, the liquid-conducting plug-in unit 2 further includes a liquid-conducting portion 22 fixedly arranged on the plug-in groove 51 , and one end of the plug-in portion 21 is fixedly connected On the side wall of the liquid guide portion 22 facing the liquid storage box 1, the inside of the liquid guide portion 22 and the plug portion 21 communicate with each other, the liquid guide portion 22 is vertically arranged, and the plug portion 21 It is arranged horizontally, and the extension direction of the plug-in portion 21 is consistent with the extension direction of the first diversion channel.

Specifically, the additive delivery module is provided with a plug slot 51 for the liquid storage box 1 to be pulled and installed, and the liquid guide portion 22 is a liquid suction pipe fixedly arranged on the plug groove 51. One end of the liquid suction pipe The outlet is connected to the inlet of the injection unit of the additive injection module, and the other end of the inlet is communicated with the interior of the liquid storage box 1 through the plug-in part 21 and the box body connection unit 3, so that the injection unit can realize the internal storage of the liquid storage box 1. Additives are automatically put into the washing tub.

In an embodiment, the liquid suction pipeline is a vertical pipeline fixedly arranged in the insertion groove 51, and the inlet of the liquid suction pipeline is opened at the liquid suction pipeline close to the storage tank. on the side wall of the liquid tank 1 side.

In another embodiment, the liquid guiding part 22 further includes a control valve disposed on the liquid suction pipeline, and the control valve controls the communication between the liquid guiding plug unit 2 and the injection unit. In this embodiment, the feeding unit is a suction pump or a Venturi tube.

In this embodiment, the liquid guide portion 22 can be fixed on the bottom wall or side wall of the insertion slot 51 in a detachable manner, or can also be integrally arranged on the bottom wall or side wall of the insertion slot 51 superior. The liquid guide portion 22 and the plug-in portion 21 may be integrally formed by injection molding, or the liquid guide portion 22 and the plug-in portion 21 may also be fixedly connected together through an assembly structure.

One end of the elastic member 41 is fixed on the liquid guiding part 22 and/or the plug-in part 21 , and the other end is compressed and abutted on the sealing member 42 . In one solution, a limiting boss is provided at the position of the plug portion 21 close to the root of the liquid-conducting portion 22 , and the elastic member 41 is compressively arranged between the limiting boss and the sealing member 42 . between.

Or, in another solution, the elastic member 41 is arranged in compression between the liquid guiding portion 22 and the sealing member 42, preferably, the elastic member 41 is arranged in compression between the liquid guiding portion 22 and the sealing member 42. the first spring between the pieces 42 .

Further, the first spring is sleeved on the outside of the ejector rod, and is compressed between the liquid guiding portion 22 and the annular pressing portion 423, and the annular pressing portion 423 is provided with an annular A snap groove 4232, one end of the first spring is limitedly installed in the annular snap groove 4232. In this embodiment, by limiting the end of the first spring close to the sealing member 42 in the annular snap groove 4232, the stability of the cooperation between the elastic member 41 and the sealing member 42 is enhanced. sex.

The embodiment of the present invention also provides an additive dispensing module 5, which has at least one plug slot 51, and a liquid storage box 1 is installed in the plug slot 51, and the liquid storage box 1 has a closed container for additive storage. The additive injection module 5 further includes an injection unit, and the injection unit communicates with the injection port of the liquid storage box 1 through the above-mentioned liquid guiding structure.

In the above solution, the feeding unit includes a suction pump or a Venturi tube, and the suction pump or Venturi tube is connected to the liquid guiding part 22 of the liquid guiding plug-in unit 2, and the liquid guiding structure The additive in the liquid storage box 1 is sucked into the water supply channel for injection.

An embodiment of the present invention also provides a washing machine, which realizes the automatic injection of additives through the above-mentioned additive injection module.

In one solution, the additive injection module 5 described in this embodiment can be installed in the control panel seat of the washing machine, the bottom wall of the body of the additive injection module 5 is integrated with a water supply water circuit, and the additive injection module 5 is inside the body. The designed dosing unit puts the additive into the water supply waterway. By integrating the water supply water channel on the bottom wall of the injection module, the water channel is arranged below the injection unit, so that the injection water channel can flow out directly from the bottom of the additive injection module 5 and be injected into the washing tub, thereby realizing the rationalization of the injection module. Significant technological progress in arranging and improving the water pressure of the delivery module.

Or, in another solution, the additive delivery module 5 described in this embodiment can also be installed on the water inlet waterway between the water inlet valve of the washing machine and the tap water connector, and the delivery unit can deliver the additive in the liquid storage box 1 It is sucked to the water inlet waterway through the above-mentioned liquid guiding structure, and is put into the washing tub along with the water inlet of the washing machine. The additive feeding module 5 is arranged outside the washing machine, the washing machine and the feeding module are two independent modules, and do not interfere with each other, and the additive feeding module 5 adopts an external setting method, and does not occupy the internal space of the washing machine, improving the performance of the washing machine. space utilization inside the washing machine.

In this embodiment, the additive delivery module 5 is further provided with a locking unit and a push-pull unlocking structure. After the liquid storage box 1 is installed in the insertion slot 51 , the liquid storage box 1 is The box 1 is locked in the insertion slot 51 , and when the user needs to replace or clean the liquid storage box 1 , the liquid storage box 1 is pulled out through the unlocking unit to unlock the liquid storage box 1 .

The liquid storage box 1 in the embodiment of the present invention adopts the above-mentioned liquid guiding structure. When the user replaces the liquid storage box 1, the elastic member 41 can also apply a pushing elastic force to the liquid storage box 1 to assist its ejection. , the user can easily and smoothly pull out the liquid storage box 1 only by providing a small initial thrust, which improves the user experience.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Within the scope of the technical solution of the present invention, personnel can make some changes or modifications to equivalent examples of equivalent changes by using the above-mentioned technical content, but any content that does not depart from the technical solution of the present invention is based on the technical solution of the present invention. Substantially any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the solutions of the present invention.

Claims

A liquid guiding structure of a liquid storage box, characterized in that, comprising:

The box body connection unit is installed at the injection port of the liquid storage box, and the injection port is normally closed;

The liquid-conducting plug-in unit is arranged on the plug-in groove for the liquid storage box to be installed. After the liquid storage box is installed in the plug-in groove, the liquid-conducting plug-in unit and the box body connection unit are plugged and matched to open the injection port;

The elastic sealing unit includes an elastic member and a sealing member, and the sealing member tightly presses against and blocks the matching gap between the liquid-conducting plug-in unit and the box body connection unit under the action of the elastic member.
The liquid guiding structure of the liquid storage box according to claim 1, wherein:

The liquid-guiding plug-in unit includes a plug-in part, and the box body connecting unit has a diversion channel, and the diversion channel is provided with a valve body that opens the injection port and closes the injection port under normal conditions by the top-stop action of the plug-in part. ;

Under the action of the elastic element, the sealing member tightly blocks the fitting gap between the outer peripheral wall of the plug-in portion and the guide channel.
The liquid guiding structure of the liquid storage box according to claim 2, wherein:

The elastic member is compressed and arranged between the liquid-conducting plug-in unit and the outer end wall of the box body connecting unit, the plug-in part extends into the guide channel, and the front end has a top-stop matching with the valve body to open the injection port. stop top;

One end of the sealing member is sealingly connected to the peripheral wall of the plug portion close to the top stop, and the other end extends away from the top stop, and is pressed against the outer end wall of the box body connection unit under the action of the elastic member to form a seal.
The liquid guiding structure of the liquid storage box according to claim 2, wherein:

The box body connection unit includes a connecting sleeve with one end located outside the liquid storage box to cooperate with the plug portion, and the other end extending into the liquid storage box. It is the ejector rod whose outer diameter is smaller than the inner diameter of the connecting sleeve;

A sealing groove is provided on the peripheral wall of the front end of the ejector rod, and the sealing member includes an annular sealing portion that is squeezed and limited in the sealing groove, and an annular sealing portion that is pressed against the outer end wall of the connecting sleeve under the action of the elastic member. a pressing portion, and an annular blocking portion connected between the annular sealing portion and the annular pressing portion;

Preferably, the annular sealing part, the annular blocking part and the annular pressing part are all made of rubber material.
The liquid guiding structure of the liquid storage box according to claim 4, wherein:

The annular blocking part is a curved stretching wall connected between the annular sealing part and the annular pressing part and formed by at least one bending, and the curved stretching wall blocks the space between the outer peripheral wall of the top rod and the connecting sleeve fit clearance.
The liquid guiding structure of the liquid storage box according to claim 4 or 5, characterized in that:

The annular blocking portion includes a cylindrical first blocking wall adapted to the outer circumference of the ejector rod. One end of the first blocking wall is fixedly connected with the annular sealing portion, and the other end faces the root of the ejector rod. The direction extends for a certain length and then reversely bends and extends to form a second blocking wall;

The annular pressing portion has an annular pressing body, the second blocking wall is connected to the pressing body, and the extension length of the first blocking wall is greater than that of the connection between the outer end wall of the sleeve and the annular seal. the distance between the

Preferably, the inner end surface of the pressing body is tightly abutted on the outer end wall of the connecting sleeve, and the second blocking wall is connected to the inner peripheral wall of the pressing body at a position close to the inner end wall surface, The second blocking wall is gradually inclined outward from the end of the first blocking wall;

More preferably, the length of the second blocking wall in the horizontal direction is greater than the thickness of the pressing body.
The liquid guiding structure of the liquid storage box according to claim 4 or 5, characterized in that:

The annular pressing portion includes an annular pressing body and one or more sealing ribs connected to the inner end surface of the pressing body, and the sealing ribs are pressed against the connecting sleeve under the action of the elastic member. on the outer end wall;

Preferably, the sealing rib is gradually inclined outward from the root.
The liquid guiding structure of the liquid storage box according to claim 4 or 5, characterized in that:

The liquid-conducting plug-in unit further includes a liquid-guiding portion fixedly arranged on the plug-in groove, the plug-in portion is fixedly connected to the side wall of the liquid-guiding portion, and one end of the elastic member is fixed on the On the liquid-conducting part and/or the plug-in part, the other end is compressed and abutted on the sealing member;

Preferably, the elastic member is a spring arranged in compression between the liquid-guiding portion and the sealing member;

More preferably, the spring is sleeved outside the ejector rod and is compressed between the liquid guiding part and the annular pressing part, and an annular clamping groove is provided on the outer end surface of the annular pressing part close to the spring side, The spring limit is installed in the annular snap groove.
An additive dispensing module has at least one plug slot, a liquid storage box is installed in the plug slot, and the liquid storage box has a closed chamber for additive storage, characterized in that:

It also includes an injection unit, which communicates with the injection port of the liquid storage box through the liquid guiding structure according to any one of the above claims 1-8.
A washing machine, characterized in that: the washing machine realizes the automatic injection of additives through the additive injection module of claim 9.