JP2020522299A - Laundry additive case and washing machine - Google Patents

Abstract

A laundry additive case and a washing machine, the laundry additive case including a housing (1). The housing (1) includes an outlet (11), and the outlet structure (2) is detachably installed in the outlet (11). Further, the liquid discharge structure (2) includes a check valve. The liquid discharge structure (2) of the laundry additive case realizes automatic addition of the laundry additive and automatic injection a plurality of times, and prevents backflow of the liquid. In addition, the removable installation makes maintenance easier and more convenient, and prevents leaks. In addition, it is possible to promptly process when clogging occurs. In addition to this, it is also possible to replenish the liquid from the liquid outlet (11). The structure is simple and highly reliable. [Selection diagram] Figure 1

Description

The present invention relates to the field of washing machines, and more particularly, to a laundry additive case that can be combined with a washing machine to realize automatic loading and multiple loading.

In the conventional washing machine, the amount of detergent to be manually added by the washing person must be determined based on experience before starting washing, which increases the work amount of the washing person. In addition, control of how much detergent should be used becomes improper, and it is difficult to wash the product cleanly or waste is likely to occur. Therefore, as a related technique, a technique of automatically adding a detergent has been proposed. Of the detergent distribution cases, the laundry additive case, which can be used for multiple washings once added, automatically adds a softening agent as needed for each washing. There are other laundry additive cases in the detergent distribution case.

At present, many patents have been filed for the automatic detergent dispenser. Patent Document 1 discloses a detergent supply device for a washing machine in which the detergent case includes a siphon unit. In the above apparatus, the detergent is poured into the detergent case and the cleaning water is poured into the detergent case to dilute the detergent in the case, and then the siphon unit is poured into the washing tank. Although the above-mentioned invention solves the problem that laundry is damaged when a strong detergent is directly added to the washing tank, accurate control in automatic addition of detergent cannot be realized.

Patent Document 2 discloses a detergent charging device used in a washing machine. The detergent feeding device includes a storage space, and a special storage groove for a detergent case is defined in the storage space. A first pin and a second pin that break through the special detergent case are provided in the storage groove of the special detergent case. A water supply hole is provided inside the first pin, and a water discharge hole is provided inside the second pin. Both of the first pin and the second pin are configured such that the water supply hole and the water discharge hole communicate with the internal space of the special detergent case after the ends are inserted into the special detergent case. .. In the above invention, water is supplied to the detergent case from the water supply hole, and the detergent mixed by the water supply flows out into the washing machine from the water discharge hole. However, the detergent case is disposable, and the detergent case must be attached each time the laundry is washed.

At present, laundry additive cases filled with detergents and softeners are generally hermetically sealed cases, and the detergent is quantitatively extracted from the case by a Venturi effect or negative pressure effect, or a metering pump or the like. .. However, since the air pressure inside the sealed laundry additive case continues to drop as the detergent is extracted, it becomes more and more difficult for the detergent to flow out. Therefore, it is necessary to balance the atmospheric pressure in the laundry additive case with the ventilation structure. Furthermore, it is necessary to prevent the detergent from flowing out of the case due to factors such as inclination and vibration, and it is also necessary to prevent external impurities and water from entering the laundry additive case and contaminating the detergent. .. Since the automatic loading type laundry additive case currently on the market is generally a disposable product, it is necessary to replace it with a new laundry additive case as soon as the dose for one case is used up. Therefore, resources are wasted, and matching between the customer and the laundry additive case is also a big problem.

In addition, the detergent in the detergent case is wasted because a part of the liquid tends to remain on the bottom wall of the detergent case after being put into the washing machine. Also, it is very inconvenient to wash the laundry additive case and its mounting space.

In view of the above, the present invention is proposed.

Chinese Patent Application Publication No. 101360599 Chinese Patent Application Publication No. 107970347

INDUSTRIAL APPLICABILITY The present invention eliminates the defects of the prior art, can be repeatedly used, is filled with a laundry additive, and can realize automatic loading and multiple loadings, so that it is not necessary to reattach each time washing To provide a laundry additive case is a technical problem to be solved. As a result, the level of automation of the washing machine is improved, the laundry additive can be smoothly and automatically injected, and the unexpected outflow of the laundry additive is prevented.

In order to solve the above technical problems, the basic idea of the technical solution adopted in the present invention will be described below.

That is, the laundry additive case includes a housing, and the housing includes a liquid outlet. A discharge structure is detachably installed at the discharge port, and the discharge structure includes a check valve.

Furthermore, the liquid discharge structure and the liquid discharge port are screwed together, or the liquid discharge structure and the liquid discharge port are engaged.

Further, the liquid discharge port is provided with a connection end extending to the outside of the housing, the liquid discharge structure includes a connection cap, and one end of the liquid discharge structure is inserted into the connection end and inside the housing. , And the other end is screwed or engaged to the connection end via a connection cap.

A protrusion structure for enhancing friction is provided on the outside of the connection cap. Further, a positioning structure is further provided outside the connection portion between the connection cap and one end of the liquid discharge structure.

Further, the connection cap is integrally molded with the other end of the liquid discharge structure, and is covered with the other end in the opposite direction with a certain gap, and the connection end is sandwiched between them. The connection cap is screwed or engaged.

Further, the laundry additive case includes a first seal unit for sealing the liquid discharge port, and the first seal unit is provided between the liquid discharge port and the liquid discharge structure.

Further, the first seal unit is an annular packing, is provided on the other end of the liquid discharge structure, is fitted in the connection cap, and is connected to the connection cap and the other end of the liquid discharge structure by the connection end. It is pressed against the connection point of.

Further, the liquid discharge structure includes a suction unit provided at one end for sucking the laundry additive in the housing, and a liquid discharge unit provided at the other end and detachably connected to the suction unit. The inlet of the suction unit extends toward the bottom wall of the housing and faces the bottom wall. The bottom wall of the housing is lower than the bottom wall surface corresponding to the inlet of the suction unit. The concave groove at the position is formed in a concave shape, the inlet of the suction unit is located in the concave groove, and a gap for allowing liquid to pass is held between the inlet and the concave unit, and the outlet of the suction unit is discharged. Communicates with the inlet of the fluid unit. The liquid discharge unit includes a check valve, and the check valve is provided in a flow path, one end of which is in communication with the other end of the suction unit and the other end of which is in communication with a charging pipe of the washing machine. A piston and a return spring are included, and the piston closes the flow path by the action of the return spring.

Further, the other end of the flow path communicates with a charging pipe of the washing machine for charging a laundry additive into a washing chamber of the washing machine, and the charging pipe is provided with a communication structure. Is provided at an end portion of the charging pipe, opens the flow path by extending into the flow path and pushing the piston, and the flow path and the charging pipe are connected to each other in the flow path. A second seal unit is provided to seal the connection point.

Further, the laundry additive case further includes a one-way ventilation structure that is hermetically attached to the housing, and when the air pressure on both the inside and outside of the laundry additive case changes, the structure is opened to ventilate in one direction. Alternatively, the structure is closed.

Furthermore, the housing 1 includes a position regulation structure. The shape and size of the position regulation structure are the same as the position regulation structure in the mounting space of the laundry additive case, and regulate the movement of the laundry additive case after mounting.

Further, the housing includes a protruding structure that is provided on an upper side of a wall on a mounting side of the housing and that strengthens a frictional force.

The invention further provides a washing machine. The washing machine includes the laundry additive case described above.

By using the above technical scheme, the present invention has the following beneficial effects as compared with the prior art.

1. The discharge structure realizes automatic addition of laundry additives and multiple automatic additions. Since the liquid discharging structure includes a check valve and can achieve a check effect, a situation in which an external liquid enters the laundry additive case and contaminates the laundry additive in the case is prevented. Further, since the liquid discharge structure is detachably installed, maintenance of the laundry additive case becomes easier and more convenient, and a situation where a problem such as clogging cannot be solved is avoided. Moreover, by installing in a hermetically sealed manner, since no leak can occur between the removable liquid discharge structure and the liquid discharge port, it is possible to avoid a situation in which unnecessary waste and contamination cannot be cleaned.

2. By installing the spout structure so that it can be used repeatedly, the spout structure can be used when the laundry additive in the laundry additive case is used up or is about to be used up. By removing, the laundry additive can be replenished from the spout to the housing.

3. The one-way ventilation structure hermetically attached to the casing balances the atmospheric pressure in the laundry additive case, so that the detergent can be extracted more smoothly. In addition, since the laundry additive case is installed in a hermetically sealed manner, it is waterproof, dustproof, and liquid is prevented from leaking.

4. The structure is simple and the number of members is reduced. Further, it is highly reliable, excellent in usability, and economical.

Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the drawings.

The drawings are provided as part of the present invention for a further understanding of the present invention. The schematic examples of the present invention and the description thereof are used for interpreting the present invention, but do not unduly limit the present invention. Needless to say, the drawings described below are only a part of the embodiments, and those skilled in the art can obtain still other drawings from these drawings without requiring creative labor.

FIG. 1 is an exploded view of the laundry additive case according to the present invention. FIG. 2 is a view showing a laundry additive case of the present invention. FIG. 3 is a sectional view taken along line AA of FIG. FIG. 4 is an enlarged view of portion B in FIG. FIG. 5 is an enlarged view of portion C of FIG. FIG. 6 is a left side view of FIG.

It should be noted that these drawings and the description of characters are not intended to limit the scope of the concept of the present invention in any way, but are for explaining the concept of the present invention to those skilled in the art with reference to specific embodiments.

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments will be described clearly and briefly below in combination with the drawings according to the embodiments of the present invention. The following examples are for explaining the present invention and do not limit the scope of the present invention.

In the description of the present invention, the directions or positional relationships indicated by the terms “upper”, “lower”, “inside”, “outer”, etc. are the directions or positional relationships based on the drawings, and for convenience of description of the present invention, It is merely for the sake of brevity and does not imply or imply that the subject device or member has a particular orientation and must be constructed and operated in the particular orientation. Therefore, it should not be understood as limiting the invention.

In the description of the present invention, the terms “attach” and “connect” should be construed in a broad sense unless otherwise clearly defined and limited. For example, it may be a fixed connection, a removable connection, or an integral connection. Further, it may be mechanical connection or electrical connection. Further, it may be a direct connection or an indirect connection via an intermediate medium. Those skilled in the art can interpret the specific meanings of the above terms in the present invention depending on the specific situation.

Specific embodiments of the present invention will be further described below with reference to the drawings.

As shown in FIGS. 1 to 6, a laundry additive case is used for filling a washing machine with a detergent or a softening agent, and includes a hermetically sealed housing 1 having a cavity therein. The detergent or softener is placed in the cavity of the housing 1. The housing 1 includes a liquid discharge port 11, and the liquid discharge structure 2 is detachably installed in the liquid discharge port 11. Further, the liquid discharge structure 2 includes a check valve.

In the above scheme, the spouting structure 2 realizes automatic addition of a laundry additive and multiple automatic additions. Since the liquid discharging structure 2 includes a check valve and can achieve a check effect, it is possible to prevent a situation in which an external liquid enters the laundry additive case and contaminates the laundry additive in the case. Further, since the spouting structure 2 is detachably installed, maintenance of the laundry additive case becomes easier and convenient, and a situation in which the problem cannot be solved when a problem such as clogging occurs is avoided. In addition, since the laundry additive case can be repeatedly used, when the laundry additive in the laundry additive case is used up or is about to be used, the spouting structure 2 can be removed to remove the spout 11 The housing 1 can be replenished with the laundry additive. Further, by installing in a hermetically sealed manner, since no leak can occur between the removable liquid discharge structure 2 and the liquid discharge port 11, a situation in which unnecessary waste and contamination cannot be washed away is avoided. The liquid discharge port 11 can be installed on the side wall or the bottom wall of the housing 1.

Further, the liquid discharge structure 2 and the liquid discharge port 11 are screw-connected. Alternatively, the liquid discharge structure 2 and the liquid discharge port 11 are brought into contact with each other. Preferably, the liquid discharge structure 2 and the liquid discharge port 11 are screw-connected.

In the above scheme, it is preferable that the liquid discharge structure 2 and the liquid discharge port 11 are screw-connected because the screw connection is easier to realize and has excellent reliability. The liquid discharge port 11 may be provided so as to project to the outside of the housing 1, and may be connected to the liquid discharge structure 2 through a protruding portion, or may be provided so as not to project to the outside of the housing 1 and the liquid discharge structure 2 may be provided. You may connect by inserting in the discharge port 11. When it is provided so as to project to the outside of the housing 1, the detachable connection with the liquid discharge structure 2 becomes simpler and more convenient, and the sealing is easier. In addition, positioning and position regulation when mounting the laundry additive case on the laundry additive mounting device of the washing machine become easier. On the other hand, when it is provided so as not to project to the outside of the housing 1, the difficulty of detachable connection and sealing becomes high. However, when it is provided so as not to project to the outside of the housing 1, the entire laundry additive case can be molded more easily, can be more easily attached to the laundry additive attachment device of the washing machine, and is excellent in appearance.

Furthermore, the liquid discharge port 11 is provided with a connection end 111 extending to the outside of the housing 1. Further, the liquid discharge structure 2 includes a connection cap 21. One end of the liquid discharge structure 2 is inserted into the connection end 111 and extends into the housing 1, and the other end is screwed or engaged with the connection end 111 via the connection cap 21. Preferably, the connection cap 21 and the connection end 111 are screw-connected.

In the above scheme, the connection end 111 is provided so as to extend to the outside of the housing 1 and is detachably connected to the connection cap 21 of the liquid discharge structure 2. The screw connection is easier to mold and more reliable than the case of engagement. The connection cap 21 may be provided at the other end of the liquid discharge structure 2 and may be integrally molded with the liquid discharge structure 2, fixedly connected to the liquid discharge structure 2, or detachably connected. May be. However, in consideration of factors such as necessity of sealing, in the preferred embodiment, the connection cap 21 is an integrally molded type.

Further, the connection cap 21 is integrally molded with the other end of the liquid discharge structure 2, and is also provided on the other end in a reverse direction with a certain gap. The connection end 111 is sandwiched between them and screwed or engaged with the connection cap 21. Preferably, the connection end 111 is sandwiched between these and screw-connected to the connection cap 21.

In the above scheme, the connection cap 21 is provided on the outside of the other end of the liquid discharge structure 2 in the opposite direction, and means that the connection cap 21 extends radially from the other end of the liquid discharge structure 2 by a certain distance and then is discharged. It means that the liquid structure 2 extends in the opposite direction to the end and is covered with the end, and has a constant gap therebetween. The connection end 111 extends into these gaps and is sandwiched between them, and is screwed or engaged with the connection cap 21. The connection end 111 may be screwed to the other end of the liquid discharge unit 22 or may be engaged with the other end. In a preferred embodiment, the screw connection facilitates molding and is excellent in reliability. Therefore, the connection end 111 may be screwed or engaged with the other end of the liquid discharge unit 22.

A protrusion structure for enhancing friction is provided on the outside of the connection cap 21. Further, a positioning structure 211 is further provided outside the connection point between the connection cap 21 and one end of the liquid discharge structure 2.

By providing a protruding structure for strengthening friction on the outside of the connection cap 21, the connection cap 21 can be easily gripped at the time of mounting and can be mounted at a predetermined position more easily and conveniently. Further, the positioning structure 211 is provided in order to prevent a displacement in the mounting direction of the liquid discharge structure 2 from interfering with the liquid discharge effect or losing the liquid discharge effect.

Furthermore, the laundry additive case includes a first seal unit 4 for sealing the spout 11. The first seal unit 4 is provided between the liquid discharge port 11 and the liquid discharge structure 2.

In the above method, since the liquid discharge structure 2 is detachably installed in the liquid discharge port 11, the first seal unit 4 is provided between them so that the liquid in the housing 1 does not leak from the connection point between the both. It is necessary to provide. As a result, the liquid discharge structure 2 can be detachably installed in the liquid discharge port 11 in a sealed manner.

Further, the first seal unit 4 is an annular packing, is provided at the other end of the liquid discharge structure 2 and is fitted in the connection cap 21. In addition, the first seal unit 4 is pressed by the connection end 111 to the connection point between the connection cap 21 and the other end of the liquid discharge structure 2.

In the above scheme, the first seal unit 4 may be provided between the connection cap 21 and the connection end 111, or between the other end of the liquid discharge structure 2 and the connection end 111. However, when provided at these two locations, the sealing effect is similar to that of the above method, but the friction force increases and the difficulty of removal increases, so the above method is preferable.

Further, the liquid discharge structure 2 is provided at one end to suck the laundry additive in the housing 1, and a liquid discharge unit 22 provided at the other end and detachably connected to the suction unit 23. including. The inlet of the suction unit 23 extends toward the bottom wall of the housing 1 and faces the bottom wall. The bottom wall of the housing 1 is provided with a recessed groove 12 corresponding to the inlet of the suction unit 23 and positioned lower than the bottom wall surface. The inlet of the suction unit 23 is located in the concave groove 12 and holds a gap for allowing the liquid to pass therethrough. Further, the outlet of the suction unit 23 communicates with the inlet of the liquid discharge unit 22. The liquid discharge unit 22 includes a check valve. The check valve includes a flow path 221 having one end communicating with the other end of the suction unit 23 and the other end communicating with a charging pipe of the washing machine, a piston 222 and a return spring 223 provided in the flow path 221. Including. The piston 222 closes the flow path 221 by the action of the return spring 223.

In the above plan, the suction unit 23 is provided. In addition, the inlet of the suction unit 23 extends toward the bottom wall of the housing 1 and faces the bottom wall. Therefore, the laundry additive in the casing 1 of the laundry additive case can be reliably extracted and no waste occurs. The bottom wall of the housing 1 is provided with a recessed groove 12 corresponding to the inlet of the suction unit 23 and positioned lower than the bottom wall surface. The inlet of the suction unit 23 is located in the concave groove 12 and holds a gap for allowing the liquid to pass therethrough. The groove 12 serves to collect the laundry additive when the residual amount of the laundry additive is small. Moreover, since the inlet of the suction device is located in the recessed groove 12, the laundry additive can be fully utilized and the maximum saving can be made, so that no waste occurs. Preferably, the suction unit 23 has a hollow tubular structure, and a flow path is formed inside. One end of the flow path faces the bottom wall of the housing 1, and the other end communicates with the inlet of the liquid discharge unit 22. The flow path forms an arc-shaped direction-changing flow guiding path between the inlet and the outlet. The turning portion corresponding to the inlet of the liquid discharge unit 22 in the flow path has an arc surface extending outward. Preferably, the radius of the arc surface is larger than the radius of the flow path. The outwardly extending arcuate surface favors the flow of laundry additive in the flow path. In the present invention, since the direction changing point is an arc surface that expands outward, compared with the case where a direction changing angle is provided at the direction changing point at a right angle or a substantially right angle, it is advantageous for the flow of liquid and intermittent flow Don't

Furthermore, the other end of the flow path 221 communicates with a charging line of the washing machine so as to load the laundry additive into the washing chamber of the washing machine. A communication structure is provided in the input conduit. The communication structure is provided at an end portion of the injection pipe line, and extends into the flow passage 221 to push the piston 222 to open the flow passage 221. In addition, a second seal unit is provided in the flow passage 221 to seal the connection between the flow passage 221 and the charging pipe.

In the above scheme, the communication structure may be installed as a protruding structure or may have a protruding structure. The projecting structure can extend into the flow path 221 and cooperate with the piston 222. When the projecting structure pushes the piston 222 open, the check valve is opened, and the liquid is discharged from the liquid discharging structure 2. On the other hand, when the protruding structure retreats, the piston 222 returns to the original position by the action of the elastic force of the return spring 223, and the liquid cannot be discharged from the liquid discharging structure 2.

Further, the laundry additive case includes a one-way ventilation structure 3 that is hermetically mounted on the housing 1. When the air pressure on both sides of the laundry additive case changes, the structure is opened to ventilate in one direction, or the structure is closed.

In the above scheme, the laundry additive case is a hermetically sealed casing 1. The unidirectional ventilation structure 3 allows only one direction of ventilation of the housing 1, and neither liquid nor impurities can flow on both sides of the carrier through the unidirectional ventilation structure 3. Further, the one-way ventilation structure 3 has a function of sealing the housing 1 as well as one-way ventilation.

Further, the housing 1 includes a position regulation structure 13. The shape and size of the position regulation structure 13 match the position regulation structure 13 in the mounting space of the laundry additive case, and regulate the movement of the laundry additive case after the mounting.

Further, the housing 1 includes a protruding structure that is provided on the upper side of the wall on the mounting side of the housing 1 to enhance the frictional force.

The invention further provides a washing machine. The washing machine includes the laundry additive case described above.

As shown in FIGS. 1 to 6, in the present embodiment, the laundry additive case is used for filling a washing machine with a detergent or a softening agent, and includes a sealed casing 1 having a cavity inside. Including. The detergent or softener is placed in the cavity of the housing 1. The housing 1 includes a liquid discharge port 11, and the liquid discharge structure 2 is detachably installed in the liquid discharge port 11. Further, the liquid discharge structure 2 includes a check valve. The liquid outlet 11 is installed on the side wall of the housing 1.

The discharge port 11 is provided with a connection end 111 extending to the outside of the housing 1. Further, the liquid discharge structure 2 includes a connection cap 21. One end of the liquid discharge structure 2 is inserted into the connection end 111 and extends into the housing 1, and the other end is screwed to the connection end 111 via the connection cap 21.

The connection cap 21 is integrally molded with the other end of the liquid discharge structure 2, and is also provided on the other end in a reverse direction with a certain gap. The connection end 111 is sandwiched between these and screwed to the connection cap 21. A protrusion structure for enhancing friction is provided on the outside of the connection cap 21. Further, a positioning structure 211 is further provided outside the connection point between the connection cap 21 and one end of the liquid discharge structure 2.

The laundry additive case further includes a first seal unit 4 for sealing the spout 11. The first seal unit 4 is provided between the liquid discharge port 11 and the liquid discharge structure 2.

The first seal unit 4 is an annular packing, which is provided on the other end of the liquid discharge structure 2 and is fitted in the connection cap 21. In addition, the first seal unit 4 is pressed by the connection end 111 to the connection point between the connection cap 21 and the other end of the liquid discharge structure 2.

The liquid discharge structure 2 further includes a suction unit 23 provided at one end for sucking the laundry additive in the housing 1, and a liquid discharge unit 22 provided at the other end and detachably connected to the suction unit 23. Including. The inlet of the suction unit 23 extends toward the bottom wall of the housing 1 and faces the bottom wall. The bottom wall of the housing 1 is provided with a recessed groove 12 corresponding to the inlet of the suction unit 23 and positioned lower than the bottom wall surface. The inlet of the suction unit 23 is located in the concave groove 12 and holds a gap for allowing the liquid to pass therethrough. Further, the outlet of the suction unit 23 communicates with the inlet of the liquid discharge unit 22. The liquid discharge unit 22 includes a check valve. The check valve includes a flow path 221 having one end communicating with the other end of the suction unit 23 and the other end communicating with a charging pipe of the washing machine, a piston 222 and a return spring 223 provided in the flow path 221. Including. The piston 222 closes the flow path 221 by the action of the return spring 223. Between the outer wall of the piston 222 and the inner wall of the flow path 221, a gap for holding the liquid is held. A contraction portion is provided in the flow path 221. The piston 222 is pressed against the contracting portion by the action of the return spring 223 to close the flow path 221.

The suction unit 23 has a hollow tubular structure, and a flow path is formed inside. One end of the flow path faces the bottom wall of the housing 1, and the other end communicates with the inlet of the liquid discharge unit 22. The flow path forms an arc-shaped direction-changing flow guiding path between the inlet and the outlet. The turning portion corresponding to the inlet of the liquid discharge unit 22 in the flow path has an arc surface extending outward. The radius of the arc surface is larger than the radius of the flow path.

The other end of the flow path 221 communicates with a charging line of the washing machine so as to load the laundry additive into the washing chamber of the washing machine. A communication structure is provided in the input conduit. The communication structure is provided at an end portion of the injection pipe line, and extends into the flow passage 221 to push the piston 222 to open the flow passage 221. In addition, a second seal unit is provided in the flow passage 221 to seal the connection between the flow passage 221 and the charging pipe.

The communication structure is a protruding structure. The projecting structure can extend into the flow path 221 and cooperate with the piston 222. In this embodiment, the communication structure has a columnar structure, and a flow path is formed inside. One end of the communication structure cooperates with the laundry additive case to open the check valve, and the other end communicates with the injection pipe of the washing machine. Among these, an opening that communicates with the internal flow path is formed in the side wall at one end that cooperates with the laundry additive case. Therefore, when the end portion pushes the piston 222 open, the laundry additive is guided from the opening to the flow path of the communication structure and enters the washing machine through the input pipe.

The laundry additive case further includes a one-way ventilation structure 3 that is hermetically attached to the housing 1. When the air pressure on both sides of the laundry additive case changes, the structure is opened to ventilate in one direction, or the structure is closed.

The casing 1 of the laundry additive case is provided with a mounting groove 14 for the one-way ventilation structure 3. The bottom wall of the mounting groove 14 is provided with a mounting port for mounting the one-way ventilation structure 3 and a plurality of ventilation holes 141 penetrating the bottom wall of the mounting groove 14. The bottom surface of the bottom wall of the mounting groove 14 further includes an annular groove, and the exhaust port of the ventilation hole 141 is provided inside the annular groove. In this embodiment, four ventilation holes 141 are included.

The one-way ventilation structure 3 is an elastic material member, includes an opening/closing part 31 and a connecting part 32, and is connected to the mounting opening via the connecting part 32. The opening/closing part 31 opens/closes in accordance with changes in atmospheric pressure on both the inside and outside of the housing 1, whereby the ventilation hole 141 is ventilated or closed in one direction. Since the opening/closing part 31 is made of a material having elasticity, it can be restored to its original state when the pressure is removed after a corresponding deformation due to the action of a certain pressure. The opening/closing part 31 and the connection part 32 are screw-connected, engaged, bonded, or integrally molded.

The opening/closing part 31 has an inverted umbrella-shaped structure or a conical structure, is mounted inside the housing 1, and covers the lower end surface of the mounting groove 14 of the housing 1. Further, the base end of the opening/closing part 31 extends into an annular groove. When the opening/closing part 31 is closed, the base end extends into the annular groove to seal the ventilation hole 141. Further, when the opening/closing part 31 is opened, the opening/closing part 31 is deformed so that the base end is separated from the annular concave groove, and the ventilation hole 141 is vented in one direction.

The connection part 32 is provided with an annular boss 321 and a transition part 322. The annular boss 321 engages with the mounting opening to engage the connecting portion 32 in the mounting opening. Further, the transition portion 322 is provided between the annular boss 321 and the opening/closing portion 31. Inside the transition part 322, a hollow hole 323 for assisting the deformation of the opening/closing part 31 is provided. The cross section of the annular boss 321 is semicircular. Since the hollow hole 323 provided inside the transition part 322 extends so as to penetrate the opening/closing part 31, the force required to deform the opening/closing part 31 is further reduced.

In this embodiment, the laundry additive case has a cubic or rectangular parallelepiped structure.

As shown in FIGS. 1 to 6, in the present embodiment, the laundry additive case is used for filling a washing machine with a detergent or a softening agent, and includes a sealed casing 1 having a cavity inside. Including. The detergent or softener is placed in the cavity of the housing 1. The housing 1 includes a liquid discharge port 11, and the liquid discharge structure 2 is detachably installed in the liquid discharge port 11. Further, the liquid discharge structure 2 includes a check valve.

This embodiment is different from the first embodiment in that the liquid discharge structure 2 and the liquid discharge port 11 are engaged with each other. The discharge port 11 is provided with a connection end 111 extending to the outside of the housing 1. Further, the liquid discharge structure 2 includes a connection cap 21. One end of the liquid discharge structure 2 is inserted into the connection end 111 and extends into the housing 1, and the other end is engaged with the connection end 111 via the connection cap 21.

As shown in FIGS. 1 to 6, in the present embodiment, the laundry additive case is used for filling a washing machine with a detergent or a softening agent, and includes a sealed casing 1 having a cavity inside. Including. The detergent or softener is placed in the cavity of the housing 1. The housing 1 includes a liquid discharge port 11, and the liquid discharge structure 2 is detachably installed in the liquid discharge port 11. Further, the liquid discharge structure 2 includes a check valve.

In this embodiment, the laundry additive case has a cubic or rectangular parallelepiped structure.

This embodiment differs from the first embodiment in that the liquid outlet 11 is provided so as not to project to the outside of the housing 1. The liquid discharge structure 2 is inserted into the liquid discharge port 11 and is removably and hermetically connected.

As shown in FIGS. 1 to 6, in the present embodiment, the laundry additive case is used for filling a washing machine with a detergent or a softening agent, and includes a sealed casing 1 having a cavity inside. Including. The detergent or softener is placed in the cavity of the housing 1. The housing 1 includes a liquid discharge port 11, and the liquid discharge structure 2 is detachably installed in the liquid discharge port 11. Further, the liquid discharge structure 2 includes a check valve.

This embodiment is different from the first embodiment in that the liquid outlet 11 is provided on the bottom wall of the housing 1.

The check valve is vertically installed in the casing 1 of the laundry additive case. The inlet end of the suction unit 23 extends so as to bend toward the bottom wall of the housing 1, the inlet faces the bottom wall, and holds a gap for allowing liquid to pass between the inlet and the bottom wall. The suction unit 23 has a hollow tubular structure, and a flow path is formed inside. One end of the flow path faces the bottom wall of the housing 1, and the other end communicates with the inlet of the check valve. In the flow path, a flow guide path is formed between the inlet and the outlet so as to change the direction twice. By combining the suction unit 23 and the check valve, a flow path 221 having an “n” shape is formed. Preferably, the direction changing portion of the flow path corresponding to the inlet of the check valve has an arcuate surface extending outward. Since the turning portion corresponding to the inlet of the check valve in the flow passage has an arc surface that expands outward, it is advantageous for the flow of the laundry additive in the flow passage. Compared to the case where a turning angle of a right angle or a substantially right angle is provided at the turning point, in this embodiment, the turning point is designed to have an arc surface that expands outward, which is advantageous for the flow of liquid. , It does not become an intermittent flow.

As shown in FIGS. 1 to 6, in the present embodiment, the laundry additive case is used for filling a washing machine with a detergent or a softening agent, and includes a sealed casing 1 having a cavity inside. Including. The detergent or softener is placed in the cavity of the housing 1. The housing 1 includes a liquid discharge port 11, and the liquid discharge structure 2 is detachably installed in the liquid discharge port 11. Further, the liquid discharge structure 2 includes a check valve.

Compared to the first embodiment, the present embodiment is different in that the housing 1 is provided with a vent, and the one-way vent structure is provided in a sealed manner in the vent.

The one-way ventilation structure includes a ventilation member and an opening/closing member. The ventilation member is provided with a ventilation hole, and the opening/closing member includes an opening/closing portion. When the atmospheric pressure on both the inside and outside of the casing 1 of the laundry additive case changes, the opening/closing portion is opened/closed, so that the ventilation hole is ventilated or closed in one direction.

The ventilation member is provided with at least one ventilation hole. The ventilation holes penetrate the upper and lower end surfaces of the ventilation member. The exhaust ports of the ventilation holes are evenly distributed on the lower end surface in the circumferential direction. The ventilation member is further provided with a connection hole for connecting the opening/closing member and an annular groove for assisting the sealing of the opening/closing member. The connection hole and the annular groove are provided coaxially. The ventilation holes are evenly provided in the circumferential direction around the axis of the connection hole. This prevents a situation in which the opening/closing portion is completely opened and the original position cannot be closed because the distribution of the ventilation holes is not uniform. A position engagement boss that engages the opening/closing member is formed in the connection hole. The annular groove is provided in the lower end surface of the ventilation member, and the exhaust port of the ventilation hole is provided in the lower end surface of the annular groove. The inner side wall of the annular groove is provided so as to be inclined toward the ventilation hole. More preferably, the inner wall of the annular groove extends so as to be inclined to the outer edge of the vent hole. This improves the sealing effect on the opening/closing part.

The opening/closing member is an elastic material member and includes an opening/closing portion and a connecting portion. Preferably, the opening/closing member is an integrally molded elastic material member. Since the opening/closing portion of the opening/closing member is made of a material having elasticity, it is possible to recover the original state when the pressure is removed after a corresponding deformation due to the action of a certain pressure. The opening/closing part and the connecting part are screw-connected, engaged, bonded, or integrally molded, preferably integrally molded.

The opening/closing portion has an inverted umbrella-like structure or a conical structure, covers the lower end surface of the ventilation member, and has the base end extending into the annular groove. The opening/closing part has an inverted umbrella-like structure or a conical structure. This is to have power. When the opening/closing part is closed, the base end extends into the annular groove to seal the vent hole. Further, when the opening/closing portion is opened, the opening/closing portion is deformed so that the base end is separated from the annular recessed groove, and the ventilation hole vents in one direction.

The connecting portion is provided with an annular boss and a transition portion. The annular boss engages with the position engagement boss of the connection hole to engage the connection portion in the connection hole. The transitional portion is provided between the annular boss and the opening/closing portion. A hollow hole that assists the deformation of the opening/closing portion is provided inside the transition portion. In addition, the cross section of the annular boss is semi-circular in order to engage the opening/closing member with the position engaging boss of the connection hole more conveniently and quickly and without labor. Since the hollow hole provided inside the transition portion extends so as to penetrate the opening/closing portion, the force required to deform the opening/closing portion is further reduced.

The above are only preferred embodiments of the present invention, and do not limit the present invention to any form. Although the present invention has been disclosed above by the preferred embodiments, it is not intended to limit the invention. A slight modification or supplementation made by a person skilled in the art using the technical contents presented above is considered to be an equivalently modified equivalent example without departing from the technical solution of the present invention. It does not deviate from the contents of the plan. Further, all simple modifications, equivalent variations and supplements made to the above-described embodiments based on the technical essence of the present invention are within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Housing 11 Discharge port 111 Connection end 12 Recessed groove 13 Position regulation structure 14 Mounting recessed groove 141 Vent hole 2 Discharge structure 21 Connection cap 211 Positioning structure 22 Discharge unit 221 Flow path 222 Piston 223 Return spring 23 Suction unit 3 One-way ventilation structure 31 Opening/closing part 32 Connection part 321 Annular boss 322 Transition part 323 Hollow hole 4 First seal unit

Claims (10)

A laundry additive case including a housing, the housing including a spout,
A laundry additive case, wherein a liquid discharging structure is detachably installed at the liquid discharging port, and the liquid discharging structure includes a check valve. The laundry additive case according to claim 1, wherein the liquid discharge structure and the liquid discharge port are screw-connected, or the liquid discharge structure and the liquid discharge port are engaged with each other. A connection end that extends to the outside of the housing is provided at the liquid discharge port, the liquid discharge structure includes a connection cap, and one end of the liquid discharge structure is inserted into the connection end and extends into the housing. The laundry additive case according to claim 2, wherein the laundry additive case is inserted and the other end is screwed or engaged with the connection end via a connection cap. The connection cap is integrally molded with the other end of the liquid discharge structure, and is covered with the other end in the opposite direction with a certain gap, and the connection end is sandwiched between them and the connection cap The laundry additive case according to claim 3, wherein the laundry additive case is screwed to or engaged with the case. The laundry additive case further includes a first seal unit for sealing the liquid discharge port, and the first seal unit is provided between the liquid discharge port and the liquid discharge structure. The laundry additive case according to any one. The first seal unit is an annular packing, is covered by the other end of the liquid discharge structure, is fitted in the connection cap, and is connected by the connection end to the connection cap and the other end of the liquid discharge structure. The laundry additive case according to claim 5, wherein the laundry additive case is pressed against a location. The liquid discharge structure further includes a suction unit provided at one end for sucking the laundry additive in the housing, and a liquid discharge unit provided at the other end and detachably connected to the suction unit,
The inlet of the suction unit extends toward the bottom wall of the housing and faces the bottom wall. The bottom wall of the housing is lower than the bottom wall surface corresponding to the inlet of the suction unit. The concave groove at the position is formed in a concave shape, the inlet of the suction unit is located in the concave groove, and a gap for allowing liquid to pass is held between the inlet and the concave unit, and the outlet of the suction unit is discharged. Communicating with the inlet of the liquid unit,
The liquid discharge unit includes a check valve, and the check valve is provided in the flow path, the flow path having one end communicating with the other end of the suction unit and the other end communicating with a charging pipe of the washing machine. The laundry additive case according to any one of claims 1 to 6, further comprising a piston and a return spring, the piston closing the flow path by an action of the return spring. The other end of the flow path communicates with a charging pipe of the washing machine for charging a washing additive into the washing chamber of the washing machine, and the charging pipe is provided with a communication structure, and the communication structure is The flow path is opened by being provided at the end of the charging pipe and extending into the flow path to push the piston to connect the flow path and the charging line in the flow path. The laundry additive case according to claim 7, further comprising a second seal unit for sealing the. The laundry additive case further includes a one-way ventilation structure that is hermetically attached to the housing, and when the air pressure on both the inside and outside of the laundry additive case changes, the structure is opened to ventilate in one direction. The laundry additive case according to claim 1, wherein the structure is closed. A washing machine comprising the laundry additive case according to any one of claims 1 to 9.