Automatic dispensing device for treating agent in a volume-variable container and washing equipment

Abstract

The present invention relates to the technical field of washing equipment, and discloses an automatic dispensing device for a treatment agent in a variable-volume container and a washing device. The automatic dispensing device for a treatment agent in a variable-volume container includes a variable-volume container, an extraction device, and a negative pressure sensor. A flow channel is defined in the extraction device, and the flow channel is sealed with the negative pressure sensor. The flow channel can communicate with the variable-volume container when the variable-volume container is inserted into the extraction device, and can also be isolated from the outside world when the variable-volume container is pulled out of the extraction device. The negative pressure sensor is used to detect the real-time pressure of the flow channel and issue an alarm signal when the real-time pressure is less than a preset pressure. The automatic dispensing device for a treatment agent in a variable-volume container disclosed by the present invention can not only issue an alarm signal when the treatment agent in the variable-volume container is used up, but can also issue an alarm signal when the variable-volume container containing the treatment agent is not loaded, thereby ensuring reliable alarming of the washing equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of washing equipment, and in particular to an automatic dispensing device for a treatment agent in a variable-volume container and washing equipment. Background Art

[0002] Most existing washing machines are equipped with a treatment agent dosing device that automatically dispenses treatment agent based on the material, weight, and soiling of the laundry. This device includes a non-sealed liquid reservoir, a pump, and a liquid detection device for monitoring the level of treatment agent within the reservoir. This non-sealed reservoir is not only prone to bacterial growth, but can also dry up if the washing machine is not used for extended periods, potentially clogging the washing liquid pipelines.

[0003] In order to solve the above problems, a treatment agent dosing device with a variable-volume container is used. The existing dosing device can only issue an alarm after the treatment agent in the variable-volume container has been used up. If the variable-volume container with the treatment agent is not loaded, since the connecting head is always connected to the outside world, it is impossible to detect that the variable-volume container with the treatment agent is not loaded, which makes the existing dosing device have disadvantages. Summary of the Invention

[0004] Based on the above, the purpose of the present invention is to provide an automatic dispensing device for a volume-variable container containing a treatment agent and a washing device, which solves the problem that existing washing devices cannot detect that a volume-variable container without a treatment agent is not filled.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A device for automatically dispensing a treatment agent into a variable-volume container comprises a variable-volume container, an extraction device and a negative pressure sensor. The extraction device defines a flow channel isolated from the outside world, and the flow channel is sealed with the negative pressure sensor. The flow channel can communicate with the variable-volume container when the variable-volume container is inserted into the extraction device, and the flow channel can also be isolated from the outside world when the variable-volume container is pulled out of the extraction device. The negative pressure sensor is used to detect the real-time pressure of the flow channel and to issue an alarm signal when the real-time pressure is less than a preset pressure.

[0007] As a preferred embodiment of an automatic dispensing device for a treatment agent contained in a variable-volume container, the extraction device includes an extraction component and a connecting component, the connecting component includes a connecting head sealedly connected to the extraction component and a push-pull member slidably mounted on the connecting head, the flow channel is provided in the extraction component, the connecting head and the push-pull member form a connecting channel connected to the flow channel, the push-pull member can slide relative to the connecting head when the variable-volume container is inserted into the connecting head, so that the connecting channel is connected to the variable-volume container; the push-pull member can also reset when the variable-volume container is pulled out from the connecting head, so that the connecting channel is isolated from the outside world.

[0008] As a preferred solution for an automatic dispensing device for a treatment agent in a variable-volume container, the extraction component includes a first extraction member and a connecting block connected to the first extraction member, the flow channel is provided in the connecting block, and the connecting block is connected to the connecting head.

[0009] As a preferred solution of the automatic dosing device for the treatment agent in a variable-volume container, the extraction component is a second extraction member, the flow channel is defined in the second extraction member, and the second extraction member is connected to the connector.

[0010] As a preferred solution of an automatic dispensing device for a treatment agent filled with a variable-volume container, the connecting head includes a first connecting rod and a second connecting rod that are fixedly connected, the first connecting rod is provided with a connecting hole connected to the flow channel, the push-pull member is sealed and slidably connected to the first connecting rod, the outer wall of the second connecting rod is provided with a connecting groove connected to the connecting hole, the connecting groove and the connecting hole constitute the connecting channel, and in a natural state, the connecting groove is located in the push-pull member and the push-pull member is sealed and connected to the second connecting rod; when the variable-volume container is inserted on the second connecting rod, the variable-volume container pushes the push-pull member to slide toward the direction close to the extraction component and the connecting groove extends out of the push-pull member, and the variable-volume container is connected to the flow channel through the connecting groove and the connecting hole in turn.

[0011] As a preferred solution of an automatic dispensing device for a treatment agent filled with a variable-volume container, the connecting component includes a first sealing member and an elastic member, the first sealing member is fixedly arranged at an end of the second connecting rod away from the first connecting rod, the communicating groove extends from the end where the second connecting rod is connected to the first connecting rod to a position close to the first sealing member, one end of the elastic member is connected to the extraction component, and the other end is connected to the push-pull member, when the variable-volume container is inserted into the second connecting rod, the variable-volume container pushes the push-pull member to compress the elastic member and the push-pull member is separated from the first sealing member, and the communicating groove is connected to the variable-volume container; when the variable-volume container is pulled out from the second connecting rod, the elastic member pushes the push-pull member to reset, the push-pull member abuts against the first sealing member and the communicating groove is isolated from the outside world.

[0012] As a preferred solution for an automatic dispensing device for a treatment agent in a variable-volume container, a second sealing member is sandwiched between the push-pull member and the first connecting rod, and the second sealing member is fixedly arranged on the inner wall of the push-pull member or the outer wall of the first connecting rod.

[0013] As a preferred solution for an automatic dispensing device for a treatment agent in a variable-volume container, at least two communicating grooves are provided on the second connecting rod, each of which extends axially along the second connecting rod, and the central axis of the communicating hole coincides with the central axis of the first connecting rod.

[0014] As a preferred solution for an automatic dispensing device for a treatment agent in a variable-volume container, a third sealing member is fixedly provided on the outer wall of the push-pull member, and the third sealing member can be sealed and slidably connected to the inner wall of the docking port of the variable-volume container.

[0015] As a preferred solution for an automatic dispensing device for a treatment agent in a variable-volume container, an opening and closing member is provided at the docking interface of the variable-volume container. The opening and closing member is configured to open the variable-volume container under the action of an external force, and is also configured to be isolated from the outside world in a natural state to prevent the treatment agent in the variable-volume container from flowing out.

[0016] As a preferred solution for an automatic dispensing device for a treatment agent in a variable-volume container, the opening and closing part is an elastic sheet having a self-sealing gap. The elastic sheet undergoes elastic deformation under the action of an external force and drives the self-sealing gap to open to open the variable-volume container. The elastic sheet can be isolated from the outside world in a natural state to prevent the treatment agent in the variable-volume container from flowing out.

[0017] A washing device comprises an automatic dispensing device for a treatment agent in a variable-volume container as described in any of the above solutions.

[0018] The beneficial effects of the present invention are as follows: the automatic dispensing device for treating agents in a variable-volume container disclosed in the present invention, when the variable-volume container is pulled out from the extraction device, the flow channel of the extraction device is isolated from the outside world, and the outside air cannot enter the flow channel. At this time, once the extraction device is working, the pressure in the flow channel drops sharply, and the negative pressure sensor sends an alarm signal when detecting that the pressure in the flow channel is less than the preset pressure, thereby solving the problem that the existing washing equipment cannot detect that a variable-volume container with treating agents is not loaded; when the extraction device is inserted into the variable-volume container, once the treating agent in the variable-volume container is used up, the pressure in the flow channel will also drop sharply, and the negative pressure sensor sends an alarm signal when detecting that the pressure in the flow channel is less than the preset pressure, thereby making the automatic dispensing device for treating agents in a variable-volume container reliable when the treating agent is used up or the variable-volume container with treating agents is not loaded, causing the extraction device to be unable to extract the treating agent.

[0019] The washing equipment disclosed in the present invention can not only send an alarm signal when the treatment agent in the variable-volume container is used up, but also send an alarm signal when the variable-volume container containing the treatment agent is not loaded, ensuring that the washing equipment can reliably alarm when the treatment agent is used up and the variable-volume container containing the treatment agent is not loaded and the extraction device is unable to extract the treatment agent when extracting the treatment agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without any creative work.

[0021] Figure 1 Schematic diagram of an automatic dispensing device for a treatment agent in a variable-volume container provided by a specific embodiment of the present invention;

[0022] Figure 2 is a cross-sectional view of an automatic dispensing device for a treatment agent in a variable-volume container provided by a specific embodiment of the present invention;

[0023] Figure 3 yes Figure 2 A local enlarged view at point A;

[0024] Figure 4 It is a schematic diagram of a partial structure of an automatic dispensing device for a treatment agent in a variable-volume container provided by a specific embodiment of the present invention.

[0025] In the picture:

[0026] 1. Volume-variable container; 11. Opening and closing member; 110. Self-sealing gap; 12. First shell; 120. First balancing hole; 13. Film;

[0027] 2. Extraction device; 20. Flow channel; 21. Extraction assembly; 211. First extraction member; 212. Connecting block; 22. Connecting assembly; 221. Connecting head; 2211. First connecting rod; 22110. Communication hole; 22111. Sliding protrusion; 2212. Second connecting rod; 22120. Communication groove; 222. Push-pull member; 2220. Sliding groove; 2221. Abutting protrusion; 223. First sealing member; 224. Elastic member; 225. Second sealing member; 226. Third sealing member;

[0028] 3. Negative pressure sensor. DETAILED DESCRIPTION

[0029] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It is apparent that the described embodiments are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0031] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed or detachable connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention.

[0032] This embodiment provides an automatic dispensing device for treating agents in a variable volume container, such as Figures 1 to 4As shown, it includes a variable-volume container 1, an extraction device 2 and a negative pressure sensor 3. A flow channel 20 isolated from the outside world is defined in the extraction device 2. The flow channel 20 is sealed with the negative pressure sensor 3. The flow channel 20 can be connected 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 world when the variable-volume container 1 is pulled out of the extraction device 2. The negative pressure sensor 3 is used to detect the real-time pressure of the flow channel 20 and send an alarm signal when the real-time pressure is lower 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 channel 20 when the extraction device 2 is working normally. The present invention does not limit the specific value of the preset pressure, and it is set according to actual needs.

[0033] The present embodiment provides an automatic dosing device for a treatment agent in a 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 world, and the outside air cannot enter the flow channel 20. At this time, once the extraction device 2 is working, 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, thereby solving the problem that the existing washing equipment cannot detect that the variable-volume container 1 with treatment agent is not loaded; 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 channel 20 will also drop sharply, and the negative pressure sensor 3 will also send an alarm signal when detecting that the pressure in the flow channel 20 is less than the preset pressure, so that the extraction device 2 can reliably alarm when the treatment agent in the variable-volume container 1 is used up or when the variable-volume container 1 with treatment agent is not loaded.

[0034] like Figure 1 As shown, the extraction device 2 of this embodiment includes an extraction component 21 and a connection component 22. Figure 2 As shown, the connecting component 22 includes a connecting head 221 sealed with the extraction component 21 and a push-pull member 222 slidably mounted on the connecting head 221. A flow channel 20 is provided in the extraction component 21. The connecting head 221 and the push-pull member 222 form a connecting channel connected to the flow channel 20. The push-pull member 222 can slide relative to the connecting head 221 when the variable-volume container 1 is inserted into the connecting head 221, so that the connecting channel is connected to the variable-volume container 1; the push-pull member 222 can also be reset when the variable-volume container 1 is pulled out from the connecting head 221, so that the connecting channel is isolated from the outside world.

[0035] Specifically, when the variable-volume container 1 is inserted into the connecting head 221, the push-pull member 222 is pushed by the variable-volume container 1 toward the extraction component 21, and the flow channel 20 in the extraction component 21 is connected with the variable-volume container 1, so that the treatment agent in the variable-volume container 1 can enter the flow channel 20, and then the extraction component 21 draws the treatment agent in the flow channel 20 into the detergent box; when the variable-volume container 1 is pulled out from the connecting head 221, the push-pull member 222 is reset, the connecting channel is isolated from the outside world, and the outside air cannot enter the flow channel 20. Once the extraction component 21 is running, the pressure in the flow channel 20 drops sharply, and the negative pressure sensor 3 sends an alarm signal when it detects that the pressure in the flow channel 20 is lower than the preset pressure.

[0036] Specifically, if Figure 1 As shown, the extraction assembly 21 of this embodiment includes a first extraction member 211 and a connection block 212 connected to the first extraction member 211. Figure 2 As shown, a flow channel 20 is provided in the connecting block 212, and the connecting block 212 is connected to the connecting head 221. The first extraction member 211 of this embodiment is a dual-outlet pump, and there are two flow channels 20 in the connecting block 212. When the dual-outlet pump rotates forward, it can pump the treatment agent in one flow channel 20 into the detergent box; when the dual-outlet pump rotates reversely, it can pump the treatment agent in the other flow channel 20 into the detergent box. In other embodiments, the first extraction member 211 can also be a device with other suction functions, which can be selected according to the actual needs of the user. In other embodiments, the extraction component 21 can also be a second extraction member, in which the flow channel 20 is defined. The second extraction member is connected to the connecting head 221, that is, the flow channel 20 is connected to the connecting channel. In this case, the connecting head 221 can be directly formed on the second extraction member, and the connecting head 221 can also be connected to the second extraction member by welding or fixed connection.

[0037] like Figure 3 As shown, the connecting head 221 of this embodiment includes a first connecting rod 2211 and a second connecting rod 2212 that are fixedly connected. The first connecting rod 2211 is provided with a connecting hole 22110 that is connected to the flow channel 20. The push-pull member 222 is sealed and slidably connected to the first connecting rod 2211. The outer wall of the second connecting rod 2212 is provided with a connecting groove 22120 that is connected to the connecting hole 22110. The connecting groove 22120 and the connecting hole 22110 form a connecting channel. In a natural state, the connecting groove 22120 is located in the push-pull member 222 and the push-pull member 222 is sealed and connected to the second connecting rod 2212; when the volume-variable container 1 is inserted into the second connecting rod 2212, the volume-variable container 1 pushes the push-pull member 222 to slide toward the direction close to the extraction component 21 and the connecting groove 22120 extends out of the push-pull member 222, and the volume-variable container 1 is connected to the flow channel 20 through the connecting groove 22120 and the connecting hole 22110 in turn.

[0038] Specifically, in a natural state, since one end of the push-pull member 222 is sealed and slidably connected to the first connecting rod 2211, and the other end of the push-pull member 222 is sealed and connected to the second connecting rod 2212, external air cannot enter the circulation channel from both ends of the push-pull member 222. At this time, the circulation channel is isolated from the outside world. 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 so that the push-pull member 222 slides toward the direction close to the extraction component 21, so that the connecting groove 22120 extends out of the push-pull member 222 and the connecting groove 22120 is connected to the variable-volume container 1. The treatment agent in the variable-volume container 1 can enter the flow channel 20 through the connecting groove 22120 and the connecting hole 22110 in turn, achieving the purpose of the variable-volume container 1 being inserted into the second connecting rod 2212 and the two being connected.

[0039] In order to achieve a sealed connection between the push-pull member 222 and the second connecting rod 2212 in a natural state, as shown in FIG. Figure 3 and Figure 4 As shown, the connecting component 22 of this embodiment includes a first sealing member 223 and an elastic member 224. The first sealing member 223 is fixedly arranged at one end of the second connecting rod 2212 away from the first connecting rod 2211. The connecting groove 22120 extends from the end where the second connecting rod 2212 is 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 extraction component 21, and the other end is connected to the push-pull member 222. When the volume-variable container 1 is inserted into the second connecting rod 2212, the volume-variable 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 connecting groove 22120 is connected to the volume-variable container 1; when the volume-variable container 1 is pulled out from the second connecting rod 2212, the elastic member 224 pushes the push-pull member 222 to reset, the push-pull member 222 abuts against the first sealing member 223, and the connecting groove 22120 is isolated from the outside world.

[0040] The first sealing member 223 of this embodiment is a rubber sealing member, which is interference-fitted on the second connecting rod 2212. The elastic member 224 is a spring, which is sleeved on the push-pull member 222. Figure 3As shown, the push-pull member 222 is provided with an abutting protrusion 2221, one end of the spring abuts against the connecting block 212, and the other end of the spring abuts against the abutting protrusion 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 sealing member 223; when the variable-volume container 1 is inserted into the second connecting rod 2212, the spring continues to be compressed, the push-pull member 222 is separated from the first sealing member 223, and the connecting groove 22120 extends into the push-pull member 222 and communicates with the variable-volume container 1, so that the treatment agent in the variable-volume container 1 can enter the flow channel 20 in sequence through the connecting groove 22120 and the connecting hole 22110, thereby achieving the purpose of inserting the variable-volume container 1 on the second connecting rod 2212 and connecting the two.

[0041] Specifically, the second connecting rod 2212 of this embodiment is provided with four communicating grooves 22120, which are evenly distributed along the circumference of the second connecting rod 2212. Each communicating groove 22120 extends axially along the second connecting rod 2212 and communicates with the communicating hole 22110. 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 communicating grooves 22120 is not limited to four as in this embodiment, and may also be one, two, three, or more than four, depending on actual needs.

[0042] like Figure 4 As shown, the push-pull member 222 of this embodiment is a sleeve, and a sliding groove 2220 extending along the axial direction is provided on the sleeve, and a sliding protrusion 22111 is provided on the connecting head 221, and the sliding protrusion 22111 is slidingly connected to the sliding groove 2220. When the sliding protrusion 22111 abuts against one end of the sliding groove 2220, the connecting head 221 and the first sealing member 223 fit tightly together. The added sliding groove 2220 and sliding protrusion 22111 facilitate the assembly of the connecting component 22; the added sliding groove 2220 makes the sleeve only move along its own axial direction. Specifically, during assembly, the sleeve and the elastic member 224 are first put on the connecting head 221. Since the sliding protrusion 22111 abuts against the end of the sliding groove 2220 away from the second connecting rod 2212, the area on the second connecting rod 2212 used to assemble the first sealing member 223 is at least partially exposed. Then, the first sealing member 223 is interference fitted on the second connecting rod 2212. After assembly, the end face of the first sealing member 223 fits against one end of the second connecting rod 2212.

[0043] like Figure 3 and Figure 4As shown, a second sealing member 225 is sandwiched between the push-pull member 222 and the first connecting rod 2211 of this embodiment. The second sealing member 225 is fixedly mounted on the outer wall of the first connecting rod 2211. Since the push-pull member 222 can slide relative to the first connecting rod 2211, the push-pull member 222 and the first connecting rod 2211 achieve the purpose of a sealed and sliding connection. Specifically, the second sealing member 225 of this embodiment is a first Y-shaped sealing ring, and 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 can also be interference-fitted on the inner wall of the push-pull member 222, and the specific arrangement is based on actual needs.

[0044] like Figure 3 and Figure 4 As shown, a third sealing member 226 is fixedly provided on the outer wall of the push-pull member 222 of this embodiment. The third sealing member 226 can be sealed and slidably connected to the inner wall of the docking port of the variable-volume container 1. Specifically, the third sealing member 226 of this embodiment is a second Y-shaped sealing ring. There are two second Y-shaped sealing rings, each of which is interference-fitted on the outer wall of the second connecting rod 2212. Because 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.

[0045] like Figure 3 As shown, an opening and closing member 11 is provided at the docking interface of the variable-volume container 1 of this embodiment. The opening and closing member 11 is configured to open the variable-volume container 1 under the action of an external force. The opening and closing member 11 is also configured to be able to be isolated from the outside world in a natural state to prevent the treatment agent in the variable-volume container 1 from flowing out. The opening and closing component 11 can be opened under the push of the second connecting rod 2212 or the suction of the extraction device 2, so that the first extraction component 211 can extract the treatment agent in 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 component 11 is not subjected to external force, the opening and closing component 11 can be reset to a state isolated from the outside world. At this time, the treatment agent in the variable-volume container 1 cannot flow out. In this way, the treatment agent in the variable-volume container 1 can be removed and replaced with a variable-volume container 1 filled with other treatment agents when the treatment agent in the variable-volume container 1 is not used up. The removed variable-volume container 1 with treatment agent is reserved for later re-loading into the automatic dispensing device for use, and the treatment agent in the variable-volume container 1 will not flow out during replacement.

[0046] Specifically, the opening and closing member 11 is an elastic sheet, such as Figure 3As shown, the elastic sheet is provided with a self-sealing slit 110. Under the action of an external force, the elastic sheet elastically deforms and drives the self-sealing slit 110 to open, thereby opening the variable-volume container 1. The elastic sheet can naturally isolate itself from the outside world, thereby preventing the treatment agent within the variable-volume container 1 from flowing outward. Furthermore, the edge of the elastic sheet is in sealing engagement with the inner wall of the docking port of the variable-volume container 1, or the edge of the elastic sheet is in sealing engagement with the end of the docking port, thereby better facilitating the sealed insertion of the extraction device 2 into the variable-volume container 1 via the second connecting rod 2212.

[0047] Specifically, the self-sealing slit 110 is in the shape of an arcuate line or a central radial line. To facilitate the opening of the self-sealing slit 110, preferably, the self-sealing slit 110 is located at a position on the elastic sheet corresponding to the circumferential edge of the docking port, so that the self-sealing slit 110 is located at a position on the elastic sheet corresponding to the center of the docking port. The self-sealing slit 110 of this embodiment is in the shape of a cross line. In other embodiments, the self-sealing slit 110 can also be in the shape of a trident line or other shapes, depending on actual needs.

[0048] like Figure 2 As shown, the variable volume container 1 of this embodiment includes a first shell 12 and a film 13. The film 13 is located in the first shell 12 and is filled with a treatment agent. The first shell 12 is provided with a first balancing hole 120 connected to the outside. As the treatment agent in the film 13 is used, the total capacity of the treatment agent gradually decreases, and the film 13 is deformed accordingly. The outside air enters the first shell 12 through the first balancing hole 120 and is located on the outside of the film 13, so that the shape of the first shell 12 remains unchanged. In other embodiments, the variable volume container 1 may also include a second shell and a piston. The piston is slidably and sealedly arranged in the second shell and divides the chamber of the second shell into two isolated first and second chambers. The first chamber is filled with a treatment agent. The second shell is provided with a second balancing hole connected to the second chamber. As the treatment agent is used, the piston moves toward the end near the docking port, the volume of the first chamber gradually decreases, and the outside air enters the second chamber through the second balancing hole. Since the piston is sealed to the second shell, the air in the second chamber cannot enter the first chamber. Of course, in other embodiments of the present invention, the variable-volume container 1 may also be other containers whose volume gradually decreases as the treatment agent decreases, and the specific configuration is based on actual needs.

[0049] The automatic dispensing device for treating agents in a variable-volume container provided in this embodiment has a simple structure, is easy to assemble, has good reliability and low production cost, and makes up for the defect that the existing automatic dispensing device for treating agents in a variable-volume container cannot detect a variable-volume container 1 that is not filled with treating agents.

[0050] This embodiment further provides a washing device, comprising the automatic dispensing device for the treatment agent in the variable volume container described in any of the above solutions. Specifically, the washing device can be a washing machine, a dishwasher, or other equipment for washing, which is not specifically limited in this embodiment.

[0051] The washing equipment provided in this embodiment can not only send an alarm signal when the treatment agent in the variable-volume container 1 is used up, reminding the user to replace the variable-volume container 1 containing the treatment agent in time, but also send an alarm signal when the variable-volume container 1 containing the treatment agent is not loaded, so that the extraction device 2 cannot extract the treatment agent in both cases: the treatment agent in the variable-volume container 1 is used up or the variable-volume container 1 containing the treatment agent is not loaded, and the negative pressure sensor 3 can reliably alarm.

[0052] It should be noted that the treatment agent in this embodiment should be understood in a broad sense. It can be a treatment agent used for washing clothes in daily life, such as laundry detergent and softener, or a treatment agent that has a treatment effect on clothes, such as disinfectant and bleach, or a detergent used for washing dishes, such as dishwasher-specific detergent. The specific selection is based on the actual needs of the user.

[0053] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. An automatic dispensing device for a treatment agent in a variable volume container, characterized in that: The invention comprises a variable-volume container (1), an extraction device (2) and a negative pressure sensor (3), wherein a flow channel (20) isolated from the outside is defined in the extraction device (2), the flow channel (20) is sealedly connected to 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), and 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 to detect the real-time pressure of the flow channel (20) and send an alarm signal when the real-time pressure is less than a preset pressure; An opening and closing member (11) is provided at the docking interface of the variable-volume container (1), and the opening and closing member (11) is configured to open the variable-volume container (1) under the action of an external force, and is also configured to be able to be isolated from the outside in a natural state to prevent the treatment agent in the variable-volume container (1) from flowing out; The extraction device (2) comprises an extraction component (21) and a connection component (22), wherein the connection component (22) comprises a connector (221) sealed with the extraction component (21) and a push-pull member (222) slidably mounted on the connector (221), wherein the flow channel (20) is provided in the extraction component (21), wherein the connector (221) and the push-pull member (222) form a communication channel connected to the flow channel (20), wherein the push-pull member (222) can slide relative to the connector (221) when the variable-volume container (1) is inserted into the connector (221) so that the communication channel is connected to the variable-volume container (1); and wherein the push-pull member (222) can also be reset when the variable-volume container (1) is pulled out of the connector (221) so that the communication channel is isolated from the outside.

2. The automatic dispensing device for treating agent in a variable volume container according to claim 1, characterized in that: The extraction assembly (21) comprises a first extraction member (211) and a connection block (212) in communication with the first extraction member (211), wherein the flow channel (20) is provided in the connection block (212), and the connection block (212) is in communication with the connector (221).

3. The automatic dispensing device for treating agent in a variable volume container according to claim 1, characterized in that: The extraction component (21) is a second extraction member, the flow channel (20) is defined in the second extraction member, and the second extraction member is in communication with the connector (221).

4. The automatic dispensing device for treating agent in a variable volume container according to claim 1, characterized in that: The connector (221) comprises a first connecting rod (2211) and a second connecting rod (2212) which are fixedly connected. A connecting hole (22110) communicating with the flow channel (20) is provided in the first connecting rod (2211). The push-pull member (222) is sealed and slidably connected to the first connecting rod (2211). A connecting groove (22120) communicating with the connecting hole (22110) is provided on the outer wall of the second connecting rod (2212). The connecting groove (22120) and the connecting hole (22110) constitute the connecting channel. In a natural state, the The communication groove (22120) is located in the push-pull member (222) and the push-pull member (222) is sealed and connected to 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 close to the extraction component (21) and the communication groove (22120) extends out of the push-pull member (222), and the variable-volume container (1) is connected to the flow channel (20) through the communication groove (22120) and the communication hole (22110) in sequence.

5. The automatic dispensing device for treating agent in a variable volume container according to claim 4, characterized in that: The connecting assembly (22) includes a first sealing member (223) and an elastic member (224). The first sealing member (223) is fixedly arranged at one end of the second connecting rod (2212) away from the first connecting rod (2211). The communicating groove (22120) extends from the end where the second connecting rod (2212) is 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 extraction assembly (21), and the other end is connected to the push-pull member (222). The variable-volume container (1) is inserted into When the second connecting rod (2212) is on, the volume-variable 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 communicating groove (22120) is communicated with the volume-variable container (1); when the volume-variable container (1) is pulled out from the second connecting rod (2212), the elastic member (224) pushes the push-pull member (222) to return to its original position, the push-pull member (222) abuts against the first sealing member (223), and the communicating groove (22120) is isolated from the outside.

6. The automatic dispensing device for treating agent in a variable volume container according to claim 4, characterized in that: A second sealing member (225) is sandwiched between the push-pull member (222) and the first connecting rod (2211), and the second sealing member (225) is fixedly arranged on the inner wall of the push-pull member (222) or the outer wall of the first connecting rod (2211).

7. The automatic dispensing device for treating agent in a variable volume container according to claim 4, characterized in that: At least two communicating grooves (22120) are provided on the second connecting rod (2212), each communicating groove (22120) extends along the axial direction of the second connecting rod (2212), and the central axis of the communicating hole (22110) coincides with the central axis of the first connecting rod (2211).

8. The automatic dispensing device for treating agent in a variable volume container according to claim 1, characterized in that: A third sealing member (226) is fixedly provided on the outer wall of the push-pull member (222), and the third sealing member (226) is capable of sealing and slidingly connecting with the inner wall of the docking port of the variable-volume container (1).

9. The automatic dispensing device for treating agent in a variable volume container according to claim 1, characterized in that: The opening and closing member (11) is an elastic sheet, and a self-sealing slit (110) is provided on the elastic sheet. The elastic sheet undergoes elastic deformation under the action of an external force and drives the self-sealing slit (110) to open to open the variable-volume container (1). The elastic sheet can be isolated from the outside in a natural state to prevent the treatment agent in the variable-volume container (1) from flowing out.

10. A washing device, characterized in that: The invention comprises an automatic dispensing device for a treatment agent in a variable-volume container as described in any one of claims 1 to 9.

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