CN114059317A

CN114059317A - Automatic feeding device and washing equipment for treating agent in container with variable volume

Info

Publication number: CN114059317A
Application number: CN202111574483.2A
Authority: CN
Inventors: 李爱华; 王传彬; 吕文娟; 李敏
Original assignee: Nanjing Zhongjingke Intelligent Technology Co ltd
Current assignee: Nanjing Zhongjingke Intelligent Technology Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-02-18

Abstract

The invention relates to the technical field of washing equipment and discloses an automatic feeding device for treating agent in a container with a variable volume and washing equipment. The automatic feeding device for the treating agent in the container with the variable volume, disclosed by the invention, not only can send out an alarm signal when the treating agent in the container with the variable volume is used, but also can send out an alarm signal when the container with the variable volume, which is filled with the treating agent, is not filled, so that reliable alarm of washing equipment is ensured.

Description

Automatic feeding device and washing equipment for treating agent in container with variable volume

Technical Field

The invention relates to the technical field of washing equipment, in particular to an automatic feeding device of a container-contained treating agent with a variable volume and washing equipment.

Background

Most of the existing washing equipment is provided with a treating agent feeding device, and the treating agent feeding device can automatically feed treating agents according to the material, weight and dirt degree of clothes. The treating agent feeding device comprises a liquid storage box with a non-sealing structure, a liquid pump and a liquid detection device for detecting the liquid level of the treating agent in the liquid storage box, the liquid storage box with the non-sealing structure is easy to breed bacteria, and if the washing equipment is not used for a long time, the liquid in the liquid storage box can be dried up to cause the blockage of a washing liquid pipeline.

In order to solve the problems, a treating agent feeding device with a container with a variable volume is applied, the existing feeding device can only send out an alarm after the treating agent in the container with the variable volume is used, if the container with the variable volume and the treating agent is not filled, the connecting head is always communicated with the outside, and the container with the variable volume and the treating agent which is not filled cannot be detected, so that the existing feeding device has disadvantages.

Disclosure of Invention

In view of the above, an object of the present invention is to provide an automatic dispensing device for a volume-variable container containing a treatment agent and a washing machine, which solve the problem that the conventional washing machine cannot detect a volume-variable container containing no treatment agent.

In order to achieve the purpose, the invention adopts the following technical scheme:

an automatic dosing device for a processing agent in a variable-volume container comprises the variable-volume container, an extraction device and a negative pressure sensor, wherein a flow passage isolated from the outside is defined in the extraction device, the flow passage is hermetically connected with the negative pressure sensor, the flow passage can be communicated with the variable-volume container when the variable-volume container is inserted into the extraction device, the flow passage can also be isolated from the outside when the variable-volume container is pulled out of the extraction device, and the negative pressure sensor is used for detecting the real-time pressure of the flow passage and sending an alarm signal when the real-time pressure is less than a preset pressure.

As a preferable scheme of the automatic dispensing device for the volume-variable container-contained treating agent, the extracting device comprises an extracting component and a connecting component, the connecting component comprises a connector hermetically connected with the extracting component and a push-pull piece slidably sleeved on the connector, the extracting component is internally provided with the flow passage, the connector and the push-pull piece enclose a communicating channel communicated with the flow passage, and the push-pull piece can slide relative to the connector when the volume-variable container is inserted on the connector, so that the communicating channel is communicated with the volume-variable container; the push-pull member can also be reset when the variable volume container is pulled out from the connecting head, so that the communication channel is isolated from the outside.

As a preferable scheme of the automatic dispensing device for the volume-variable container-contained treatment agent, the extraction assembly includes a first extraction member and a connection block communicated with the first extraction member, the connection block is provided with the flow passage therein, and the connection block is communicated with the connection head.

As a preferable mode of the automatic dispensing device for the volume-variable container-contained treatment agent, the extraction assembly is a second extraction member, the second extraction member defines the flow passage therein, and the second extraction member is communicated with the connecting head.

As a preferable scheme of the automatic feeding device for the volume-variable container-contained treatment agent, the connector comprises a first connecting rod and a second connecting rod which are fixedly connected, a communicating hole communicated with the flow channel is formed in the first connecting rod, the push-pull piece and the first connecting rod are in sealed and sliding connection, a communicating groove communicated with the communicating hole is formed in the outer wall of the second connecting rod, the communicating groove and the communicating hole form the communicating channel, and in a natural state, the communicating groove is located in the push-pull piece and the second connecting rod are in sealed connection; when the variable volume container is inserted on the second connecting rod, the variable volume container pushes the push-pull piece to slide towards the direction close to the extraction assembly, the communication groove extends out of the push-pull piece, and the variable volume container is communicated with the flow channel sequentially through the communication groove and the communication hole.

As a preferable scheme of the automatic dispensing device for the volume-variable container-contained treatment agent, the connecting assembly includes a first sealing element and an elastic element, the first sealing element is fixedly arranged at one end of the second connecting rod, which is far away from the first connecting rod, the communication groove extends from the end, which is connected with the first connecting rod, of the second connecting rod to a position close to the first sealing element, one end of the elastic element is connected with the extraction assembly, the other end of the elastic element is connected with the push-pull element, when the volume-variable container is inserted on the second connecting rod, the volume-variable container pushes the push-pull element to compress the elastic element, the push-pull element is separated from the first sealing element, and the communication groove is communicated with the volume-variable container; when the volume-variable container is pulled out of the second connecting rod, the elastic piece pushes the push-pull piece to reset, the push-pull piece is abutted to the first sealing piece, and the communication groove is isolated from the outside.

In a preferred embodiment of the automatic dispensing device for a volume-variable container-packed treatment agent, a second seal is interposed between the push-pull member and the first connecting rod, and the second seal is fixedly provided on an inner wall of the push-pull member or an outer wall of the first connecting rod.

In a preferred embodiment of the automatic dispensing device for a volume-variable container-packed treatment agent, the second link is provided with at least two of the communication grooves, each of the communication grooves extends in an axial direction of the second link, and a central axis of the communication hole coincides with a central axis of the first link.

In a preferred embodiment of the automatic dispensing device for a volume-variable container containing a processing agent, a third seal is fixed to an outer wall of the push-pull member, and the third seal is slidably connected to an inner wall of the butt joint port of the volume-variable container in a sealing manner.

As a preferable mode of the automatic dispensing device for the processing agent in the variable volume container, a closure is provided at a butt joint of the variable volume container, and the closure is configured to open the variable volume container under an external force and is further configured to be capable of blocking the processing agent in the variable volume container from flowing out in a natural state by being isolated from the outside.

As a preferable scheme of the automatic dispensing device for the processing agent in the variable-volume container, the opening and closing member is an elastic sheet, a self-closing gap is arranged on the elastic sheet, the elastic sheet is elastically deformed under the action of external force and drives the self-closing gap to open the variable-volume container, and the elastic sheet can be isolated from the outside in a natural state to prevent the processing agent in the variable-volume container from flowing out.

A washing device comprising an automatic dispensing device for a variable volume container of a treatment agent according to any of the above aspects.

The invention has the beneficial effects that: when the variable-volume container is pulled out of the extracting device, a flow channel of the extracting device is isolated from the outside, outside air cannot enter the flow channel, once the extracting device works, the pressure in the flow channel is rapidly reduced, and a negative pressure sensor sends out an alarm signal when detecting that the pressure in the flow channel is less than the preset pressure, so that the problem that the existing washing equipment cannot detect the volume variable container which is not filled with the treating agent is solved; when the extraction device is inserted into the variable-volume container, once the treatment agent in the variable-volume container is used, the pressure in the flow channel also drops rapidly, and the negative pressure sensor also sends out an alarm signal when detecting that the pressure in the flow channel is smaller than the preset pressure, so that the automatic dosing device with the treatment agent in the variable-volume container can reliably alarm when the treatment agent cannot be extracted by the extraction device when the treatment agent is used up and the treatment agent in the variable-volume container is not filled.

The washing equipment disclosed by the invention can send out an alarm signal when the treatment agent in the container with the variable volume is used up, and also can send out an alarm signal when the container with the variable volume and filled with the treatment agent is not filled in, so that the reliable alarm can be given when the treatment agent cannot be extracted by an extracting device when the treatment agent is extracted by the washing equipment when the treatment agent is used up and the treatment agent is not filled in the container with the variable volume and filled with the treatment agent.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic view of an automatic dispensing device for a variable volume container of a treating agent according to an embodiment of the present invention;

FIG. 2 is a sectional view of an automatic dispensing apparatus for a variable volume container of a treating agent according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic diagram showing a partial structure of an automatic dispensing device for a variable volume container containing a treating agent according to an embodiment of the present invention.

In the figure:

1. a variable volume container; 11. an opening and closing member; 110. self-sealing the gap; 12. a first housing; 120. a first balance hole; 13. a film;

2. an extraction device; 20. a flow channel; 21. an extraction assembly; 211. a first extraction member; 212. connecting blocks; 22. a connecting assembly; 221. a connector; 2211. a first connecting rod; 22110. a communicating hole; 22111. sliding and protruding; 2212. a second connecting rod; 22120. a communicating groove; 222. a push-pull member; 2220. a chute; 2221. an abutment projection; 223. a first seal member; 224. an elastic member; 225. a second seal member; 226. a third seal member;

3. a negative pressure sensor.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment provides an automatic feeding device for a processing agent in a variable-volume container, as shown in fig. 1 to 4, the automatic feeding device comprises a variable-volume container 1, an extraction device 2 and a negative pressure sensor 3, a flow channel 20 isolated from the outside is defined in the extraction device 2, the flow channel 20 is hermetically connected with the negative pressure sensor 3, the flow channel 20 can be communicated with the variable-volume container 1 when the variable-volume container 1 is inserted into the extraction device 2, the flow channel 20 can also be isolated from the outside when the variable-volume container 1 is pulled out of the extraction device 2, and the negative pressure sensor 3 is used for detecting the real-time pressure of the flow channel 20 and sending an alarm signal when the real-time pressure is less than the preset pressure. It should be noted that the preset pressure is not only lower than a standard atmospheric pressure, but also lower than the pressure in the flow passage 20 when the extraction device 2 normally works.

According to the automatic feeding device for the treating agent in the variable-volume container, when the variable-volume container 1 is pulled out of the extraction device 2, the flow channel 20 of the extraction device 2 is isolated from the outside, outside air cannot enter the flow channel 20, once the extraction device 2 works, the pressure in the flow channel 20 drops sharply, and the negative pressure sensor 3 sends out an alarm signal when detecting that the pressure in the flow channel 20 is smaller than the preset pressure, so that the problem that the existing washing equipment cannot detect that the variable-volume container 1 with the treating agent is not filled is solved; when the variable volume container 1 is inserted into the extraction device 2, once the treatment agent in the variable volume container 1 is used up, the pressure in the flow passage 20 also drops sharply, and the negative pressure sensor 3 also sends out an alarm signal when detecting that the pressure in the flow passage 20 is less than the preset pressure, so that the negative pressure sensor 3 can reliably alarm when the treatment agent cannot be extracted by the extraction device 2 under the conditions that the treatment agent in the variable volume container 1 is used up and the treatment agent in the variable volume container 1 filled with the treatment agent is not filled.

As shown in fig. 1, the extraction device 2 of the present embodiment includes an extraction assembly 21 and a connection assembly 22, as shown in fig. 2, the connection assembly 22 includes a connector 221 hermetically connected to the extraction assembly 21 and a push-pull member 222 slidably sleeved on the connector 221, a flow channel 20 is provided in the extraction assembly 21, the connector 221 and the push-pull member 222 enclose a communication channel communicating with the flow channel 20, and the push-pull member 222 can slide relative to the connector 221 when the volume-variable container 1 is inserted onto the connector 221, so as to communicate the communication channel with the volume-variable container 1; the push-pull member 222 can also be reset when the volume-variable container 1 is pulled out from the connection head 221, so as to isolate the communication passage from the outside.

Specifically, when the variable volume container 1 is inserted into the connector 221, the push-pull member 222 is pushed by the variable volume container 1 toward the direction of the extraction assembly 21, the flow channel 20 in the extraction assembly 21 is communicated with the variable volume container 1, so that the treating agent in the variable volume container 1 can enter the flow channel 20, and the extraction assembly 21 extracts the treating agent in the flow channel 20 into the detergent box; when the volume-variable container 1 is pulled out from the connector 221, the push-pull member 222 is reset, the communication channel is isolated from the outside, the outside air cannot enter the flow channel 20, once the extraction assembly 21 operates, the pressure in the flow channel 20 drops sharply, and the negative pressure sensor 3 sends an alarm signal when detecting that the pressure in the flow channel 20 is less than the preset pressure.

Specifically, as shown in fig. 1, the extraction assembly 21 of the present embodiment includes a first extraction member 211 and a connection block 212 communicating with the first extraction member 211, as shown in fig. 2, a flow passage 20 is provided in the connection block 212, and the connection block 212 communicates with the connection head 221. The first pumping part 211 of this embodiment is a dual-outlet pump, and the number of the flow channels 20 in the connecting block 212 is two, so that when the dual-outlet pump rotates forward, the treating agent in one flow channel 20 can be pumped into the detergent box; when the dual outlet pump is reversed, the treatment agent in the other flow path 20 can be pumped into the detergent box. In other embodiments, the first suction member 211 may be a device with other suction functions, specifically selected according to the actual needs of the user. In other embodiments, the extracting component 21 may also be a second extracting member, the second extracting member defines the flow passage 20 therein, and the second extracting member is communicated with the connecting head 221, that is, the flow passage 20 is communicated with the communicating channel, in this case, the connecting head 221 may be directly formed on the second extracting member, and the connecting head 221 may also be communicated with the second extracting member by welding or fixed connection.

As shown in fig. 3, the connection head 221 of this embodiment includes a first connection rod 2211 and a second connection rod 2212 fixedly connected, a communication hole 22110 communicating with the flow channel 20 is provided in the first connection rod 2211, the push-pull member 222 is hermetically and slidably connected to the first connection rod 2211, a communication groove 22120 communicating with the communication hole 22110 is provided on the outer wall of the second connection rod 2212, the communication groove 22120 and the communication hole 22110 form a communication channel, and in a natural state, the communication groove 22120 is located in the push-pull member 222 and the push-pull member 222 is hermetically connected to the second connection rod 2212; when the variable volume container 1 is inserted into the second connecting rod 2212, the variable volume container 1 pushes the push-pull member 222 to slide in a direction approaching the extraction unit 21, the communicating groove 22120 extends out of the push-pull member 222, and the variable volume container 1 is communicated with the flow path 20 sequentially through the communicating groove 22120 and the communicating hole 22110.

Specifically, in a natural state, since one end of the push-pull member 222 is hermetically and slidably connected to the first connecting rod 2211, and the other end of the push-pull member 222 is hermetically connected to the second connecting rod 2212, external air cannot enter the circulation channel from the two ends of the push-pull member 222, and the circulation channel is isolated from the outside. When the variable volume container 1 is inserted into the second connecting rod 2212, the push-pull member 222 is pushed by the variable volume container 1 to slide the push-pull member 222 in a direction approaching the extraction unit 21, so that the communication groove 22120 extends out of the push-pull member 222 and the communication groove 22120 communicates with the variable volume container 1, the treating agent in the variable volume container 1 can sequentially pass through the communication groove 22120 and the communication hole 22110 and enter the flow channel 20, and the variable volume container 1 is inserted into the second connecting rod 2212 and communicates with the second connecting rod 2212.

In order to realize the sealing connection between the push-pull member 222 and the second connecting rod 2212 in the natural state, as shown in fig. 3 and 4, the connecting assembly 22 of the present embodiment includes a first sealing member 223 and an elastic member 224, the first sealing member 223 is fixedly disposed at one end of the second connecting rod 2212 far from the first connecting rod 2211, the communication groove 22120 extends from the end of the second connecting rod 2212 connected to the first connecting rod 2211 to a position close to the first sealing member 223, one end of the elastic member 224 is connected to the extracting assembly 21, the other end is connected to the push-pull member 222, when the variable-volume container 1 is inserted onto the second connecting rod 2212, the variable-volume container 1 pushes the push-pull member 222 to compress the elastic member 224 and the push-pull member 222 is separated from the first sealing member 223, and the communication groove 22120 is communicated with the variable-volume container 1; when the variable volume container 1 is pulled out from the second connecting rod 2212, the elastic member 224 pushes the push-pull member 222 to return, the push-pull member 222 abuts against the first seal member 223, and the communicating groove 22120 is isolated from the outside.

The first sealing member 223 of this embodiment is a rubber sealing member, the rubber sealing member is interference-fitted on the second connecting rod 2212, the elastic member 224 is a spring, and the spring is sleeved on the push-pull member 222, as shown in fig. 3, the push-pull member 222 is provided with an abutting projection 2221, one end of the spring abuts on the connecting block 212, and the other end of the spring abuts on the abutting projection 2221. In the natural state, the spring is in a compressed state, and one end of the push-pull member 222 abuts against the end face of the first seal 223; when the variable volume container 1 is inserted into the second connecting rod 2212, the spring is compressed, the push-pull member 222 is separated from the first sealing member 223, and the communicating groove 22120 extends into the push-pull member 222 and communicates with the variable volume container 1, so that the treating agent in the communicating part of the variable volume container 1 can sequentially enter the flow passage 20 through the communicating groove 22120 and the communicating hole 22110, and the variable volume container 1 is inserted into the second connecting rod 2212 and communicated with the second connecting rod 2212.

Specifically, the second connecting rod 2212 of the present embodiment is provided with four communicating grooves 22120, the four communicating grooves 22120 are uniformly distributed along the circumferential direction of the second connecting rod 2212, each communicating groove 22120 extends along the axial direction of the second connecting rod 2212 and is communicated with a communicating hole 22110, and the central axis of the communicating hole 22110 coincides with the central axis of the first connecting rod 2211. In other embodiments, the number of the communication grooves 22120 is not limited to four in this embodiment, and may be one, two, three, or more than four, and is specifically set according to actual needs.

As shown in fig. 4, the push-pull member 222 of this embodiment is a sleeve, the sleeve is provided with a sliding slot 2220 extending along the axial direction, the connector 221 is provided with a sliding projection 22111, the sliding projection 22111 is slidably connected with the sliding slot 2220, when the sliding projection 22111 abuts against one end of the sliding slot 2220, the connector 221 and the first sealing member 223 are tightly attached together, and the additional sliding slot 2220 and sliding projection 22111 facilitate the assembly of the connecting assembly 22; the sliding groove 2220 is additionally arranged, so that the sleeve can only move along the axial direction of the sleeve. Specifically, during assembly, the sleeve and the elastic member 224 are firstly sleeved on the connecting head 221, and since the sliding projection 22111 is abutted with one end of the sliding groove 2220 far away from the second connecting rod 2212, the area of the second connecting rod 2212 for assembling the first sealing member 223 at least partially leaks outwards; the first seal 223 is then interference fitted onto the second connecting rod 2212, and the end face of the fitted first seal 223 abuts against one end of the second connecting rod 2212.

As shown in fig. 3 and 4, a second sealing member 225 is interposed between the push-pull member 222 and the first connecting rod 2211 of the present embodiment, the second sealing member 225 is fixedly disposed on an outer wall of the first connecting rod 2211, and the push-pull member 222 and the first connecting rod 2211 can slide relative to the first connecting rod 2211, so that the purpose of sealing and sliding connection is achieved. Specifically, the second sealing element 225 of this embodiment is a first Y-shaped sealing ring, the number of the first Y-shaped sealing rings is two, and each first Y-shaped sealing ring is interference-fitted on the outer wall of the first connecting rod 2211. In other embodiments, the second sealing member 225 may be interference-fitted on the inner wall of the push-pull member 222, which is set according to actual requirements.

As shown in fig. 3 and 4, the push-pull member 222 of the present embodiment is fixedly provided with a third sealing member 226 on the outer wall thereof, and the third sealing member 226 can be connected to the inner wall of the mating port of the variable volume container 1 in a sealing and sliding manner. Specifically, the third sealing element 226 of this embodiment is two second Y-shaped sealing rings, each of the second Y-shaped sealing rings is interference-fitted on the outer wall of the second connecting rod 2212, and since the second connecting rod 2212 can slide relative to the variable volume container 1, the second connecting rod 2212 is sealed and slidably connected to the variable volume container 1.

As shown in fig. 3, the variable volume container 1 of the present embodiment is provided with a shutter 11 at the interface, the shutter 11 is configured to open the variable volume container 1 under an external force, and the shutter 11 is further configured to be isolated from the outside in a natural state to block the treating agent in the variable volume container 1 from flowing out. The shutter 11 can be opened by the push of the second connecting rod 2212 or by the suction of the extraction device 2, so that the first extraction member 211 can extract the treatment agent inside the variable-volume container 1; when the variable volume container 1 is pulled out from the second connecting rod 2212 and the opening and closing member 11 is not subjected to external force, the opening and closing member 11 can be reset to a state isolated from the outside, at this time, the treating agent in the variable volume container 1 cannot flow out, so that the variable volume container 1 filled with other treating agents can be taken down and replaced with the variable volume container 1 filled with other treating agents under the condition that the treating agent in the variable volume container 1 is not used up, the taken-down variable volume container 1 with the treating agent is reserved for later use and is reloaded into the automatic dispensing device for use, and the treating agent in the variable volume container 1 cannot flow out during replacement.

Specifically, the opening and closing member 11 is an elastic sheet, as shown in fig. 3, the elastic sheet is provided with a self-closing slit 110, the elastic sheet is elastically deformed under an external force and drives the self-closing slit 110 to open the container 1 with variable volume, and the elastic sheet can be isolated from the outside in a natural state to prevent the treating agent in the container 1 with variable volume from flowing out. Further, the edge of the elastic piece is in sealing engagement with the inner cavity peripheral wall of the docking port of the variable volume container 1, or the edge of the elastic piece is in sealing engagement with the end of the docking port, so as to better give way for the extraction device 2 to be sealingly inserted into the variable volume container 1 through the second connecting rod 2212.

Specifically, the self-sealing slit 110 is in an arc-shaped line shape or a central radial line shape, and in order to facilitate the opening of the self-sealing slit 110, preferably, the self-sealing slit 110 is located on the elastic sheet at a position corresponding to the circumferential edge of the interface, so that the self-sealing slit 110 is located on the elastic sheet at a position corresponding to the center of the interface. The self-sealing slit 110 of the present embodiment is in the shape of a cross. In other embodiments, the self-sealing slit 110 may also be in a three-forked line shape or other shapes, and is specifically configured according to actual needs.

As shown in fig. 2, the volume-variable container 1 of the present embodiment includes a first casing 12 and a film 13, the film 13 is disposed in the first casing 12 and contains a treating agent therein, the first casing 12 is provided with a first balance hole 120 communicating with the outside, the total volume of the treating agent is gradually reduced with the use of the treating agent in the film 13, the film 13 is deformed therewith, and outside air enters the first casing 12 through the first balance hole 120 and is disposed outside the film 13 so that the shape of the first casing 12 is not changed. In other embodiments, the variable volume container 1 may further include a second housing and a piston, the piston is slidably and hermetically disposed in the second housing and divides a chamber of the second housing into two isolated first and second chambers, a processing agent is contained in the first chamber, the second housing is provided with a second balance hole communicated with the second chamber, the piston moves toward one end close to the docking port along with the use of the processing agent, the volume of the first chamber gradually decreases, external air enters the second chamber through the second balance hole, and the piston is hermetically connected with the second housing, so that the air in the second chamber cannot enter the first chamber. Of course, in other embodiments of the present invention, the container 1 with variable volume may also be other containers with gradually reduced volume along with the reduction of the treating agent, and is specifically configured according to actual needs.

The automatic feeding device for the treating agent in the variable-volume container provided by the embodiment has the advantages of simple structure, easiness in assembly, good reliability and low production cost, and overcomes the defect that the existing automatic feeding device for the treating agent in the variable-volume container cannot detect the variable-volume container 1 without the treating agent.

The embodiment also provides washing equipment comprising the automatic dosing device for the treatment agent in the variable-volume container, which is disclosed by any one of the above aspects. Specifically, the washing device may be a washing machine, a dishwasher or other devices for washing, and the embodiment is not particularly limited.

The washing device provided by the embodiment can not only send out an alarm signal when the treatment agent in the variable-volume container 1 is used up to remind a user of replacing the variable-volume container 1 filled with the treatment agent in time, but also send out an alarm signal when the variable-volume container 1 filled with the treatment agent is not filled in, so that the negative pressure sensor 3 can reliably alarm when the treatment agent cannot be extracted by the extracting device 2 under two conditions that the treatment agent in the variable-volume container 1 is used up and the treatment agent cannot be extracted under two conditions that the variable-volume container 1 filled with the treatment agent is not filled in.

It should be noted that the treating agent in the present embodiment should be broadly understood, and may be a treating agent used for washing clothes in daily life, such as a laundry detergent, a softener, and the like, a treating agent having a treating effect on clothes, such as a disinfectant, a bleaching agent, and the like, or a detergent used for washing dishes, such as a detergent dedicated for a dishwasher, and specifically selected according to actual needs of users.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An automatic dosing device for a processing agent in a variable-volume container is characterized by comprising a variable-volume container (1), an extraction device (2) and a negative pressure sensor (3), wherein a flow passage (20) isolated from the outside is defined in the extraction device (2), the flow passage (20) is hermetically connected with the negative pressure sensor (3), the flow passage (20) can be communicated with the variable-volume container (1) when the variable-volume container (1) is inserted into the extraction device (2), the flow passage (20) can be isolated from the outside when the variable-volume container (1) is pulled out from the extraction device (2), and the negative pressure sensor (3) is used for detecting the real-time pressure of the flow passage (20) and sending an alarm signal when the real-time pressure is less than a preset pressure.

2. The device for automatically dispensing a variable-volume container-contained treatment agent according to claim 1, wherein the extraction device (2) comprises an extraction assembly (21) and a connection assembly (22), the connection assembly (22) comprises a connector (221) hermetically connected with the extraction assembly (21) and a push-pull member (222) slidably sleeved on the connector (221), the flow passage (20) is arranged in the extraction assembly (21), the connector (221) and the push-pull member (222) enclose a communication channel communicated with the flow passage (20), and the push-pull member (222) can slide relative to the connector (221) when the variable-volume container (1) is inserted on the connector (221) so as to communicate the communication channel with the variable-volume container (1); the push-pull piece (222) can also reset when the volume-variable container (1) is pulled out from the connecting head (221), so that the communication channel is isolated from the outside.

3. The device for automatically dispensing a volume-variable container-containing treatment agent according to claim 2, wherein the extraction assembly (21) comprises a first extraction member (211) and a connection block (212) communicating with the first extraction member (211), the flow channel (20) being provided in the connection block (212), the connection block (212) communicating with the connection head (221).

4. Device for the automatic dispensing of a treatment agent from a variable volume container according to claim 2, characterized in that said extraction assembly (21) is a second extraction member defining said flow channel (20) therein, said second extraction member being in communication with said connection head (221).

5. The apparatus for automatically dispensing a processing agent in a container with a variable volume according to claim 2, wherein the connecting head (221) comprises a first connecting rod (2211) and a second connecting rod (2212) which are fixedly connected, a communication hole (22110) communicating with the flow channel (20) is formed in the first connecting rod (2211), the push-pull member (222) is hermetically and slidably connected with the first connecting rod (2211), a communication groove (22120) communicating with the communication hole (22110) is formed in an outer wall of the second connecting rod (2212), the communication groove (22120) and the communication hole (22110) form the communication channel, and in a natural state, the communication groove (22120) is located in the push-pull member (222) and the push-pull member (222) is hermetically connected with the second connecting rod (2212); when the variable volume container (1) is inserted into the second connecting rod (2212), the variable volume container (1) pushes the push-pull member (222) to slide in a direction approaching the extraction unit (21) and the communication groove (22120) extends out of the push-pull member (222), and the variable volume container (1) is communicated with the flow channel (20) sequentially through the communication groove (22120) and the communication hole (22110).

6. The automatic dispensing device of a variable volume container-filled treating agent according to claim 5, wherein the connecting member (22) comprises a first sealing member (223) and an elastic member (224), the first sealing member (223) is fixedly disposed at an end of the second connecting rod (2212) remote from the first connecting rod (2211), the communication groove (22120) extends from the end of the second connecting rod (2212) connected to the first connecting rod (2211) to a position close to the first sealing member (223), one end of the elastic member (224) is connected to the withdrawing member (21) and the other end is connected to the push-pull member (222), when the variable volume container (1) is inserted onto the second connecting rod (2212), the variable volume container (1) pushes the push-pull member (222) to compress the elastic member (224) and the push-pull member (222) is separated from the first sealing member (223), the communicating groove (22120) is communicated with the variable volume container (1); when the variable volume container (1) is pulled out from the second connecting rod (2212), the elastic piece (224) pushes the push-pull piece (222) to return, the push-pull piece (222) is abutted to the first sealing piece (223), and the communication groove (22120) is isolated from the outside.

7. The device for automatically dispensing a variable volume container of a treatment agent according to claim 5, wherein a second seal (225) is interposed between the push-pull member (222) and the first connecting rod (2211), and the second seal (225) is fixedly disposed on an inner wall of the push-pull member (222) or an outer wall of the first connecting rod (2211).

8. The apparatus for automatically dispensing a variable volume container-filled treatment agent according to claim 5, wherein the second connecting rod (2212) is provided with at least two communication grooves (22120), each of the communication grooves (22120) extends in the axial direction of the second connecting rod (2212), and the central axis of the communication hole (22110) coincides with the central axis of the first connecting rod (2211).

9. The device for automatically dispensing a treatment agent into a variable volume container according to claim 2, wherein a third seal (226) is fixedly disposed on an outer wall of the push-pull member (222), and the third seal (226) is capable of sealing and slidably connecting with an inner wall of the counter-opening of the variable volume container (1).

10. The automatic dispensing device of a variable volume container containing a treating agent according to claim 1, wherein a closure (11) is provided at the interface of the variable volume container (1), the closure (11) is configured to open the variable volume container (1) under an external force and is further configured to be naturally isolated from the outside to block the treating agent in the variable volume container (1) from flowing out.

11. The device for automatically dispensing a treating agent into a variable-volume container according to claim 10, wherein the opening and closing member (11) is an elastic sheet having a self-closing slit (110), the elastic sheet is elastically deformed under an external force and drives the self-closing slit (110) to open the variable-volume container (1), and the elastic sheet is naturally isolated from the outside to block the treating agent in the variable-volume container (1) from flowing out.

12. A washing apparatus comprising an automatic dispensing device of a variable volume container of a treating agent according to any of claims 1 to 11.