Automatic dispensing system for variable-volume containerized treatments and washing machine, dishwasher

Abstract

The application discloses an automatic feeding system for a variable-volume containerized treating agent, a washing machine and a dish washing machine. The automatic feeding system comprises a variable-volume containerized treating agent mounting position and a pumping device. The pumping device is sealedly connected to the variable-volume containerized treating agent through a first pipeline. A negative pressure sensor is arranged on the first pipeline and / or the pumping device. When the negative pressure sensor detects that a pressure value is less than a preset pressure value, an alarm signal is sent. Compared with the prior art, the technical scheme provided by the application has the following advantages: simple structure, difficulty in blocking the pipeline, convenience in production and processing, and accurate alarm.

Description

Technical Field

[0001] This invention relates to the field of dispensing treatment agents in variable-volume containers, and more particularly to an automatic dispensing system for treatment agents in variable-volume containers, as well as a washing machine and a dishwasher. Background Technology

[0002] Currently, most high-end garment or dishwashing machines on the market are equipped with automatic treatment agent dispensing systems. This eliminates the need for users to measure and dispense a specific amount of treatment agent before each wash, replacing tedious manual operations and ensuring relatively accurate dosage. However, existing automatic treatment agent dispensing systems mostly require drawing or pouring bottled or bagged liquid or solid-liquid mixtures of treatment agent into the system's storage tank. This makes the treatment agent prone to bacterial contamination and drying due to prolonged exposure to air, potentially clogging the pipes. This hinders the repeated use of the treatment agent and the subsequent cleaning of the storage tank. Furthermore, when a small amount of unusable treatment agent remains in the storage tank, it needs to be mixed with newly added treatment agent, which can lead to mixed treatment agents, resulting in poor cleaning effects and cross-contamination of odors. In view of the above technical problems, an automatic treatment agent dispensing system designed for use with bagged treatment agents or variable-volume bottled, canned, or barrelled treatment agents has been developed. However, users still encounter many problems during actual use.

[0003] For example, Chinese invention application CN108049119A, entitled "Detergent Dispensing Device, Method, and Washing Machine," discloses a detergent dispensing device comprising a first cavity for adding detergent and a detergent pipeline connected to the first cavity; the detergent pipeline is connected to a negative pressure generator; a switching component is disposed within the detergent pipeline; the negative pressure generator, when operating, creates a negative pressure in the detergent pipeline; when detergent is present in the first cavity, the detergent flows into the detergent pipeline under negative pressure and drives the switching component to move, generating a switching signal; when the detergent in the first cavity is depleted, there is no detergent in the detergent pipeline, and the switching component cannot generate the switching signal. In this application, the outer diameter of the switching component 3 is smaller than the inner diameter of the detergent pipeline 2. Even if there is negative pressure in the detergent pipeline 2 after the detergent is depleted, the smaller outer diameter of the switching component ensures a gas passage between the switching component and the detergent pipeline, preventing the switching component from moving due to airflow. To obtain the switching signal generated by the switching component 3 during its movement, the switching component can be a small plastic ball with a lever installed inside the detergent line 2. The lever is connected to a switching circuit outside the detergent line 2. This switching circuit is connected to an alarm or a control module. When the plastic ball moves and actuates the lever, it generates a lever signal. This lever signal can serve as a switching signal, or it can act as a control signal for the switching circuit, causing the circuit to generate a switching signal. If this switching signal is not detected during detergent dispensing, the alarm is activated to signal that the detergent is depleted, or a signal is sent to the control module. The control module then performs corresponding operations, such as displaying information about the depleted detergent and specifying which type of detergent is depleted. As can be seen, this invention utilizes the detergent flow to activate the switching component inside the line to detect whether the detergent is depleted. However, the switching component inside the line has a complex structure, is prone to damage or falling off, and can become blocked in the detergent line, affecting operation. Furthermore, manufacturing the switching component inside the line is technically difficult and detrimental to improving production efficiency. Furthermore, the first cavity in this invention application, used to hold detergent, cannot compare with an automatic dispensing system that directly dispenses detergent in terms of preventing detergent contamination and drying.

[0004] For example, Chinese utility model patent CN102226308B, entitled "Side-Pull Liquid Detergent Dispensing Device," discloses that: the water box 2 is composed of an upper shell assembly 21, a lower shell 22, and a cover 23; the upper shell assembly has an upper shell 24, a fixed container 3, and a negative pressure generator 4; the negative pressure generator 4 is formed on the upper shell 24, which has a negative pressure drain port 41, a water inlet 42, and a water storage chamber 43. The water inlet and the water storage chamber 43 are connected by a constriction port 44, which has a negative pressure air port 45. The water storage chamber has an overflow port 46, the lower edge of which is higher than the upper edge 441 of the constriction port, and the position of the negative pressure drain port 41 is lower than the lower edge 442 of the constriction port. In this utility model patent, the negative pressure generator itself has a complex structure, and its working mechanism is to generate negative pressure through the Venturi effect, which deviates from the alarm function and is not conducive to simplifying the structure of the alarm system.

[0005] Finally, the Chinese utility model patent with authorization announcement number CN205152629U, entitled "A Dispensing Device", discloses that: the second outlet 403 is connected to the negative pressure generator 5, and the negative pressure port 57 on the negative pressure generator 5 is connected to the negative pressure port 209 of the fixed container through the second fluid channel; the negative pressure generator 5 includes an inlet 51 connected to the second outlet 403, a gradually narrowing inlet 53, a contraction port 54, an opening drain port 52, a water storage chamber 56, and a water storage chamber drain port 58; the inlet 51 is connected to the gradually narrowing inlet 53, and the gradually narrowing inlet 53 and the opening drain port 52 are connected through the contraction port 54, and the contraction port 54 is provided with the negative pressure port 57; the water storage chamber 56 is provided with an overflow port 55, the overflow port 55 is higher than the upper edge 521 of the opening drain port 52, and the position of the water storage chamber drain port 58 is lower than the lower edge 522 of the opening drain port 52. The technical solution described in this utility model patent also utilizes the Venturi effect to generate negative pressure, which does little to simplify the alarm system. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides an automatic dispensing system for handling agents in a variable-volume container that is simple in structure, less prone to pipeline blockage, easy to manufacture and process, and capable of accurate alarms.

[0007] The present invention mainly adopts the following technical solution:

[0008] An automatic dispensing system for a variable-volume containerized treatment agent includes a variable-volume containerized treatment agent installation position and an extraction device. The extraction device is sealed to the variable-volume containerized treatment agent through a first conduit. A negative pressure sensor is provided on the first conduit and / or the extraction device. When the negative pressure sensor detects that the pressure value is less than a preset pressure value, it issues an alarm signal.

[0009] The variable-volume container for the treatment agent is assembled onto the variable-volume container for the treatment agent mounting position. The variable-volume container for the treatment agent includes a variable-volume container, which includes a container body and a container nozzle connected to the container body. The first conduit is sealed to the container nozzle, and a sealed environment for the negative pressure sensor to operate is formed between the extraction device, the first conduit, and the variable-volume container.

[0010] The container body is made of a flexible packaging bag. The container spout is inserted into the flexible packaging bag. The side of the flexible packaging bag connected to the container spout is a sealing edge. The sealing edge is provided with a reinforcing part at the position corresponding to the container spout. The part of the container spout inserted into the sealing edge is provided with a connecting part.

[0011] The container body is provided with a piston that is sealed and movable with the side wall of the container body, and the container nozzle is integrally formed with the container body or the container nozzle is sealed and inserted into the container body.

[0012] It also includes a support member for supporting the first catheter.

[0013] The negative pressure sensor is connected to the first conduit and / or the extraction device via a branch pipe.

[0014] The preset pressure value of the negative pressure sensor is less than the vacuum pressure of 0 kPa.

[0015] It also includes a container nozzle locking device. The variable volume container for the treatment agent installation position includes a container nozzle installation part, and the container nozzle installation part includes a travel bracket. The container nozzle locking device is installed in conjunction with the travel bracket so that the container nozzle locking device can switch between a locked position and an unlocked position.

[0016] The container spout locking device includes a locking tongue assembly, which includes a locking tongue. The container spout mounting part also includes a guide hole, and a locking tongue hole is provided on the surrounding hole of the guide hole. The locking tongue can switch between extending into or retracting from the locking tongue hole.

[0017] The container spout locking device also includes a support arm and an operation key assembly. One end of the support arm is connected to the locking tongue assembly, and the other end of the support arm is connected to the operation key assembly.

[0018] The support arm is disposed around the periphery of the guide hole. One end of the support arm is rotatably connected to the latch assembly, and the other end of the support arm is rotatably connected to the operation key assembly. The latch assembly and the operation key assembly are respectively installed in conjunction with the travel bracket.

[0019] The travel bracket includes a first travel track and a second travel track. The locking tongue assembly reciprocates along the first travel track, and the operation key assembly reciprocates along the second travel track. The extension directions of the first travel track and the second travel track are different.

[0020] The latch assembly includes a latch seat, on which a slider is provided, and the slider slides along the first travel track.

[0021] The locking tongue seat is also provided with a first pin, and the two ends of the support arm are respectively provided with retaining rings. The first pin passes through the retaining ring located at one end of the support arm.

[0022] The operation key assembly includes an operation key insert, on which a second pin is provided, and the second pin passes through the retaining ring located at the other end of the support arm.

[0023] The operation key slides along the second travel track.

[0024] The guide hole is further provided with a travel hole, and the support arm and / or the operation key assembly are provided with a support foot in the direction facing the guide hole. When the latch retracts from the latch hole, the support foot extends into the travel hole.

[0025] The container spout locking device further includes an elastic element, one end of which abuts against the latch assembly. Under the action of the elastic element, the latch assembly tends to extend the latch into the latch hole and drives the operation key assembly to reset.

[0026] The container spout locking device further includes a mating component, and the other end of the elastic element abuts against the mating component.

[0027] The first conduit has a groove formed on the circumferential outer wall of the end connected to the variable volume container for the treatment agent, and a seal is installed in the groove.

[0028] The slot is formed by annular protrusions spaced apart on the outer circumferential wall of the first conduit, or annular grooves spaced apart on the outer circumferential wall of the first conduit.

[0029] The sealing element includes a sealing ring and a sealing lip. The sealing ring is fitted into the groove. One end of the sealing lip is connected to the sealing ring, and the other end of the sealing lip extends radially outward in a direction opposite to that toward the variable volume container for the treatment agent.

[0030] The cross-section of the seal is approximately V-shaped or Y-shaped.

[0031] Wherein, the top end of the first conduit connected to the variable volume containerized treatment agent is provided with a pin protruding outward, the pin allowing the first conduit to communicate with the variable volume containerized treatment agent.

[0032] The pin includes a connecting leg, which is connected to the inner wall of the first catheter tip cavity.

[0033] It also includes a mixing chamber, and the extraction device is connected to the mixing chamber via a second conduit.

[0034] The mixing chamber is at least partially enclosed by a bottom shell, which has an irregular geometric structure.

[0035] A washing machine that uses the aforementioned variable-volume container for dispensing an automatic dispensing system for a treatment agent.

[0036] A dishwasher that uses the aforementioned variable-volume container for dispensing an automatic dispensing system for processing agents.

[0037] According to the technical solution described in this invention, the following beneficial effects are achieved: By installing a negative pressure sensor on the first conduit and / or extraction device of the variable-volume container for storing the treatment agent, the variable-volume container is used to easily change the volume of the treatment agent stored. Specifically, when the variable-volume container is first used to store the treatment agent, the negative pressure sensor will not detect a negative pressure value or can only detect a very small negative pressure value. As the treatment agent is continuously consumed, the volume of the variable-volume container used to store the treatment agent continuously decreases. When the treatment agent is exhausted and the volume of the variable-volume container used to store the treatment agent no longer decreases, the negative pressure sensor will detect a rapidly increasing negative pressure value because the sealed environment cannot replenish air. Based on the setting of comparing with a preset pressure value, an alarm will be sent to the controller. The technical solution described in this application can simplify the structure of the alarm system, avoid using complex and difficult-to-manufacture switching components in the prior art, and improve the reliability and service life of the alarm unit. Attached Figure Description

[0038] Figure 1 A partially exploded view of an automated dispensing system for a variable-volume containerized treatment agent.

[0039] Figure 2 for Figure 1 A schematic diagram of the structure after removing the variable volume container for the treatment agent, the variable volume container for the treatment agent mounting position, the container nozzle locking device, and the top cover.

[0040] Figure 3 for Figure 2 Enlarged view of section A.

[0041] Figure 4 This is a schematic diagram of an embodiment of a container for packaging treatment agents in a variable-volume container.

[0042] Figure 5 This is a cross-sectional structural schematic diagram of another embodiment of a container for packaging treatment agents with a variable volume.

[0043] Figure 6 for Figure 2 A top-view diagram of the first catheter after the seal has been removed.

[0044] Figure 7 This is a schematic diagram of the sealing component.

[0045] Figure 8 for Figure 7 Schematic diagram of the HH cross-section structure.

[0046] Figure 9 for Figure 1 Top view of the structure.

[0047] Figure 10 for Figure 9 Schematic diagram of the cross-section of the middle BB section.

[0048] Figure 11 for Figure 9 Schematic diagram of the cross-section of the middle CC section.

[0049] Figure 12 for Figure 9 Schematic diagram of the DD section.

[0050] Figure 13 for Figure 1 A partial exploded view of the automatic dispensing system for variable-volume containerized treatment agents after the removal of the variable-volume containerized treatment agent.

[0051] Figure 14 For variable volume containers, the agent loading position and container nozzle locking device are provided. Figure 13 A front view of the cross section shown in the middle EE section.

[0052] Figure 15 for Figure 13 A top view of the installation position of the treatment agent in a medium-volume variable-volume container.

[0053] Figure 16 for Figure 15 Schematic diagram of the cross-section of the middle FF section.

[0054] Figure 17 This is a schematic diagram of the container spout locking device.

[0055] Figure 18 This is a schematic diagram of the locking tongue assembly.

[0056] Figure 19 This is a schematic diagram of the outrigger structure.

[0057] Figure 20 This is a schematic diagram of the operation key component structure.

[0058] 1. Automatic dispensing system for variable volume containerized treatment agent; 10. Installation position for variable volume containerized treatment agent; 101. Container nozzle mounting part; 110. Guide insertion hole; 1100. Locking tongue hole; 11000. Stroke hole; 111. Stroke support; 1118. First stroke track; 1119. Second stroke track; 12. Mixing chamber; 2. Container nozzle locking device; 21. Locking tongue assembly; 211. Locking tongue; 212. Locking tongue seat; 2121. Slider; 2122. First pin; 2 2. Support arm, 221. Support leg, 23. Operation key assembly, 231. Operation key insert, 2311. Second pin, 24. Elastic element, 25. Mating element, 3. First conduit, 30. Slot, 301. Seal, 3011. Sealing ring, 3012. Sealing lip, 31. Negative pressure sensor, 311. Branch pipe, 4. Extraction device, 410. Ejector pin, 50. Variable volume container for processing agent, 51. Container body, 511. Sealing edge, 512. Piston, 52. Container nozzle, 6. Support element. Detailed Implementation

[0059] The technical solution of the present invention will be further described below with reference to the accompanying drawings:

[0060] See Figures 1 to 3As shown, an automatic dispensing system 1 for a variable-volume container for storing processing agents includes a variable-volume container for storing processing agents mounting position 10 and an extraction device 4. The extraction device 4 is sealed to the variable-volume container for storing processing agents 50 via a first conduit 3. A negative pressure sensor 31 is provided on the first conduit 3 and / or the extraction device 4. When the negative pressure sensor 31 detects a pressure value lower than a preset pressure value, it issues an alarm signal. In this application, a variable-volume container refers to a container whose volume for storing processing agents is easily changeable. For example, the flexible packaging bag used for bagged processing agents can freely shrink or expand; the volume of the storage processing agent formed by a piston and the bottle body, can body, barrel body, etc., changes with the movement of the piston, etc. The extraction device and the variable-volume container for storing processing agents are sealed together via a first conduit with a negative pressure sensor, and / or the extraction device with a negative pressure sensor is sealed together with the variable-volume container for storing processing agents via a first conduit. The "alarm signal" refers to the signal sent by the negative pressure sensor to the controller when it detects a pressure value lower than a preset pressure value. Further, the controller sends a command to the user prompt unit based on the "alarm signal" to prompt the user to replace the variable-volume container for the treatment agent. More specifically, the user prompt unit can issue prompts to the user through sound, light, or electricity. Preferably, the extraction device can extend outwards to form a liquid inlet joint, which is connected to the main working chamber of the extraction device to allow the extracted treatment agent to flow into the main working chamber. The liquid inlet joint can be directly formed as the aforementioned first conduit, or the liquid inlet joint can be sealed to the first conduit. A negative pressure sensor can be installed on the liquid inlet joint and / or the first conduit (including combinations of the aforementioned situations) to detect the negative pressure value in the liquid inlet joint and / or the negative pressure value in the first conduit. When the extraction device does not have a liquid inlet joint, the first conduit is directly sealed to the main working chamber of the extraction device, and the negative pressure sensor is installed on the first conduit to detect the negative pressure value in the first conduit.

[0061] See Figure 1 , 9As shown, the variable volume container for the treatment agent 50 is assembled onto the variable volume container for the treatment agent mounting position 10. The variable volume container for the treatment agent 50 includes a variable volume container, which includes a container body 51 and a container nozzle 52 connected to the container body 51. The first conduit 3 is sealed to the container nozzle 52, and a sealed environment for the negative pressure sensor 31 to work is formed between the extraction device 4, the first conduit 3 and the variable volume container. In this application, for example, when there is still sufficient treatment agent in the flexible packaging bag of the bagged treatment agent or in the bottle, can, or barrel of the treatment agent with the piston inserted, no negative pressure value will be detected or only a very small negative pressure value may be detected in the sealed environment formed between the variable volume container of the treatment agent, the first conduit, and the extraction device. Until only a small amount of treatment agent remains in the flexible packaging bag or the bottle, can, or barrel, the extraction device will have difficulty extracting it. Since the sealed environment cannot be replenished with air, the volume of the flexible packaging bag or the bottle, can, or barrel used to store the treatment agent cannot be further reduced. Only then will a rapidly increasing negative pressure value be detected in the sealed environment formed by the above three. In order to exhaust the remaining treatment agent in the flexible packaging bag or the bottle, can, or barrel with the piston inserted as much as possible, an alarm signal will be issued when the negative pressure value increases to a certain level to prompt the user to replace it, so as to avoid waste of treatment agent residue.

[0062] See Figure 4 As shown, the container body 51 is made of a flexible packaging bag, the container spout 52 is inserted into the flexible packaging bag, and the side of the flexible packaging bag connected to the container spout 52 is a sealing edge 511. The sealing edge 511 is provided with a reinforcing part at the position corresponding to the container spout 52, and the part of the container spout 52 inserted into the sealing edge 511 is provided with a connecting part.

[0063] See Figure 5 As shown, a piston 512 is provided inside the container body 51 and is in a sealing and movable fit with the side wall of the container body 51. The container nozzle 52 is integrally formed with the container body 51 or the container nozzle 52 is sealed and inserted into the container body 51.

[0064] See Figure 3 As shown, a support member 6 is also provided to support the first conduit 3. This structural design can prevent the first conduit from shaking, making it more stable and preventing displacement. Preferably, the support member is located at the corresponding position where the first conduit 3 is connected to the negative pressure sensor 31, to overcome the weight burden caused by the negative pressure sensor on the first conduit. Preferably, the support member can be formed by deformation of the shell. On the one hand, the support member is provided to maintain the stability of the first conduit; on the other hand, the support member formed after deformation can also improve the mechanical strength of the shell, making the produced variable volume container automatic agent dispensing system less prone to deformation.

[0065] See Figure 3 As shown, the negative pressure sensor 31 is connected to the first conduit 3 and / or the extraction device 4 via a branch pipe 311. This structural design allows for more flexible and varied placement of the negative pressure sensor, facilitating the rational arrangement of various components.

[0066] Furthermore, the preset pressure value of the negative pressure sensor 31 is less than the vacuum pressure of 0 kPa. In actual use, although the soft packaging bags used for bagged treatment agents may have different alarm thresholds indicating that the treatment agent inside the bag has been used up and there is no residue due to differences in material, or the bottled, canned, and barreled treatment agents may also have different alarm thresholds indicating that the treatment agent inside the bag has been used up and there is no residue due to differences in factors such as the friction between the piston and the bottle, can, or barrel wall, the sealing effect, and the size of the piston, the pressure value in the sealed environment formed by the extraction device, the first conduit, and the container body of the variable-volume treatment agent is generally less than the vacuum pressure of 0 kPa to achieve no residue. Therefore, the alarm preset pressure value is set to be less than the vacuum pressure of 0 kPa, for example, less than the vacuum pressure of -3 kPa, -5 kPa, or -10 kPa.

[0067] See Figures 9 to 16 As shown, it also includes a container spout locking device 2. The variable-volume container for handling agents mounting position 10 includes a container spout mounting part 101, which includes a travel bracket 111. The container spout locking device 2 is installed in conjunction with the travel bracket 111 to allow the container spout locking device 2 to switch between a locked position and an unlocked position. Preferably, the travel bracket 111 is formed by opposing ribs. In this application, the container spout locking device and the travel bracket are installed in conjunction. The travel bracket can ensure the stability of the travel movement of the container spout locking device, prevent unstable movement, jamming, or asymmetry, and ensure the locking effect of the container spout locking device.

[0068] See Figures 9 to 12As shown, the container spout locking device 2 includes a locking tongue assembly 21, which includes a locking tongue 211. The container spout mounting part 101 also includes a guide insertion hole 110. A locking tongue hole 1100 is provided on the hole surrounding the guide insertion hole 110. The locking tongue 211 can switch between extending into and retracting from the locking tongue hole 1100. In this application, the locking tongue and the hole surrounding the guide insertion hole of the container spout mounting part extend into or retract to engage. This "intrusive" locking method can achieve stable and high-strength locking and positioning of the container spout. Unlike the "non-intrusive" clamping locking in the prior art, the technical solution described in this application will not cause the container spout to accidentally fall off due to external force. The locking effect is good and the container spout is not prone to accidental displacement. In this application, "hole surrounding" refers to the structural component that encloses the longitudinal contour of the guide insertion hole. For example, "hole surrounding" can be a hole wall formed by arc-shaped side plates, or a fence formed by ribs, etc.

[0069] See Figures 9 to 12 As shown, the container spout locking device 2 also includes a support arm 22 and an operation key assembly 23. One end of the support arm 22 is connected to the locking tongue assembly 21, and the other end of the support arm 22 is connected to the operation key assembly 23.

[0070] See Figures 9 to 12 As shown in Figures 17 to 20, the support arm 22 is disposed around the periphery of the guide socket 110. One end of the support arm 22 is rotatably connected to the locking tongue assembly 21, and the other end of the support arm 22 is rotatably connected to the operation key assembly 23. The locking tongue assembly 21 and the operation key assembly 23 are respectively fitted and installed with the travel bracket 111. Preferably, the support arm 22 is disposed around the periphery of the guide socket 110 in an arc shape or in a straight line. More preferably, the support arm 22 is disposed around the periphery of the guide socket 110 in an arc shape. This is because when the support arm 22 is disposed around the periphery of the guide socket 110 in an arc shape, it not only increases the torque to a certain extent but also makes better room for the guide socket. This structural design is simple and ingenious. By utilizing the linkage of the support arm, the locking tongue assembly and the operation key assembly cooperate to complete their respective travels, thereby realizing the locking and unlocking actions of the container mouth. The degree of automation is higher and the user operation is more convenient.

[0071] See Figure 15 , 16 As shown, the travel bracket 111 includes a first travel track 1118 and a second travel track 1119. The locking tongue assembly 21 reciprocates along the first travel track 1118, and the operating key assembly 23 reciprocates along the second travel track 1119. The extending directions of the first travel track 1118 and the second travel track 1119 are different. Preferably, the opposing stiffeners have raised ribs formed on their opposite sides, and the raised ribs form the first travel track 1118 and the second travel track 1119.

[0072] See Figures 16 to 18 As shown, the latch assembly 21 includes a latch seat 212, on which a slider 2121 is provided, and the slider 2121 slides along the first stroke track 1118.

[0073] See Figures 17 to 19 As shown, a first pin 2122 is also provided on the latch seat 212, and retaining rings are provided at both ends of the support arm 22. The first pin 2122 passes through the retaining ring located at one end of the support arm 211.

[0074] See Figure 19 , 20 As shown, the operation key assembly 23 includes an operation key insert 231, on which a second pin 2311 is provided, and the second pin 2311 passes through a retaining ring located at the other end of the support arm 22.

[0075] See Figure 16 , 20 As shown, the operation key 2311 slides along the second travel track 1119.

[0076] See Figure 15 As shown, a travel hole 11000 is also provided on the periphery of the guide hole 110. A support leg 221 is also provided on the support arm 22 and / or the operation key assembly 23 facing the guide hole 110. When the latch 211 retracts from the latch hole 1100, the support leg 221 extends into the travel hole 11000. Preferably, the support leg 221 has a beveled structure on the side facing the larger inner diameter of the guide hole 110. This structural design cleverly utilizes the support arm to drive the support leg into the travel hole and / or the pressing action of the operation key assembly to extend the support leg into the travel hole while the latch retracts from the latch hole. This allows the support leg to provide a pushing force towards the center of the container mouth and / or towards the direction of container mouth retraction while the latch unlocks the container mouth and the container mouth retracts from the guide hole, enabling the container mouth to quickly and easily retract from the guide hole.

[0077] See Figure 14 , 17 As shown, the container spout locking device 2 also includes an elastic element 24. One end of the elastic element 24 abuts against the locking tongue assembly 21. Under the action of the elastic element 24, the locking tongue assembly 21 tends to extend the locking tongue 211 into the locking tongue hole 1100 and drives the operation key assembly 23 to reset.

[0078] See Figure 17 As shown, the container spout locking device 2 also includes a mating part 25, and the other end of the elastic member 24 abuts against the mating part 25.

[0079] See Figures 6 to 8As shown, a groove 30 is formed on the circumferential outer wall of the first conduit 3 at the end connected to the variable-volume container holding the treatment agent 50, and a seal 301 is installed in the groove 30. Preferably, the seal 301 is made of rubber material.

[0080] See Figure 6 As shown, the slot 30 is formed by annular protrusions spaced apart on the outer wall of the first conduit 3, or annular grooves spaced apart on the outer wall of the first conduit 3.

[0081] See Figure 7 , 8 As shown, the seal 301 includes a sealing ring 3011 and a sealing lip 3012. The sealing ring 3011 is fitted into the groove 30. One end of the sealing lip 3012 is connected to the sealing ring 3011, and the other end of the sealing lip 3012 extends radially outward in a direction opposite to that towards the variable-volume containerized treatment agent 50. In this application, the radially outward extension height of the sealing lip is greater than the height of the inner diameter edge of the nozzle of the variable-volume containerized treatment agent that it mates with, so as to achieve a sealing effect. The extension direction of the sealing lip does not hinder the insertion of the first conduit into the nozzle of the variable-volume containerized treatment agent.

[0082] See Figure 8 As shown, the cross-section of the seal 301 is approximately V-shaped or Y-shaped.

[0083] See Figure 2 , 3 As shown in Figure 6, the top end of the first conduit 3 connected to the variable volume container of the treatment agent 50 is provided with a pin 410 protruding outward, and the pin 410 allows the first conduit 3 to be connected to the variable volume container of the treatment agent 50.

[0084] See Figure 2 , 3 As shown in Figure 6, the ejector pin 410 includes a connecting leg, which is connected to the inner wall of the first conduit 3. Preferably, the connecting leg is formed by cross-arranged plates with gaps between them, and the crossing of the plates can be centrally symmetrical or axially symmetrical.

[0085] See Figure 2 , 6 As shown in Figures 1 and 13, the device also includes a mixing chamber 12, and the extraction device 4 is connected to the mixing chamber 12 via a second conduit. Preferably, the height of the outlet of the second conduit is lower than the height of the inlet of the mixing chamber, so as to facilitate the flushing and dilution of the treatment agent flowing out of the outlet of the second conduit by water flow.

[0086] See Figure 2 , 6As shown in Figures 1 and 13, the mixing chamber 12 is at least partially enclosed by a bottom shell, which has an irregular geometric structure. In this application, the irregular geometric structure of the bottom shell makes it easier for the mixing chamber to form more steep slopes, so that the water flow can reach the treatment agent flowing out of the second conduit outlet.

[0087] A washing machine using the aforementioned variable-volume container for dispensing treatment agents using an automatic dispensing system 1.

[0088] A dishwasher using the aforementioned variable-volume container for dispensing an automatic dispensing system 1 for processing agents.

[0089] In this application, the main structure of the automatic dispensing system for variable volume containerized treatment agents includes a housing, an extraction device installed on the housing, a variable volume containerized treatment agent installation position, and a container nozzle locking device. The housing includes a bottom shell and a top cover. The variable volume containerized treatment agent installation position can be installed on the housing using a pull-out installation method. After the user assembles the variable volume containerized treatment agent into the installation position, the container nozzle locking device locks the container nozzle of the variable volume containerized treatment agent, and pushes the installation position into the housing to seal the container nozzle of the variable volume containerized treatment agent with the extraction device.

[0090] Although specific embodiments of the present invention have been described above, those skilled in the art can make modifications to them without departing from the spirit and principles of the present invention. The scope of protection of the present invention is defined by its claims and their equivalents.

Claims

1. An automatic dispensing system for a variable-volume containerized treatment agent, comprising a variable-volume containerized treatment agent mounting position and an extraction device, wherein the extraction device is sealed to the variable-volume containerized treatment agent via a first conduit, characterized in that: A negative pressure sensor is provided on the first conduit and / or the extraction device. When the negative pressure sensor detects a pressure value less than a preset pressure value, it issues an alarm signal. The variable-volume containerized treatment agent is assembled onto the variable-volume containerized treatment agent mounting position. The variable-volume containerized treatment agent includes a variable-volume container, which includes a container body and a container nozzle connected to the container body. The first conduit is sealed to the container nozzle, forming a sealed environment for the negative pressure sensor to operate between the extraction device, the first conduit, and the variable-volume container. A container nozzle locking device is also included. The variable-volume containerized treatment agent mounting position includes a container nozzle mounting part, which includes a travel bracket. The container nozzle locking device is installed in conjunction with the travel bracket to allow the container nozzle locking device to switch between a locked position and an unlocked position. The container nozzle locking device includes a locking tongue assembly. The locking tongue assembly includes a locking tongue, and the container mouth mounting part also includes a guide hole. The guide hole has a larger inner diameter on one side of its cross-section. A locking tongue hole is provided on the periphery of the guide hole, and the locking tongue can switch between extending into and retracting from the locking tongue hole. The container mouth locking device also includes a support arm and an operating key assembly. One end of the support arm is connected to the locking tongue assembly, and the other end of the support arm is connected to the operating key assembly. The support arm is disposed outside the periphery of the guide hole. One end of the support arm is rotatably connected to the locking tongue assembly, and the other end of the support arm is rotatably connected to the operating key assembly. The locking tongue assembly and the operating key assembly are respectively installed in conjunction with the travel bracket. A travel hole is also provided on the periphery of the guide hole, and a support foot is provided on the support arm and / or the operating key assembly in the direction facing the guide hole. When the locking tongue retracts from the locking tongue hole, the support foot extends into the travel hole.

2. The automatic dispensing system for handling agents in a variable-volume container according to claim 1, characterized in that: The container body is made of a flexible packaging bag. The container spout is inserted into the flexible packaging bag. The side of the flexible packaging bag connected to the container spout is a sealing edge. The sealing edge is provided with a reinforcing part at the position corresponding to the container spout. The part of the container spout inserted into the sealing edge is provided with a connecting part.

3. The automatic dispensing system for handling agents in a variable-volume container according to claim 1, characterized in that: The container body is provided with a piston that is in a sealing and movable fit with the side wall of the container body, and the container nozzle is integrally formed with the container body or the container nozzle is sealed and inserted into the container body.

4. The automatic dispensing system for handling agents in a variable-volume container according to claim 1, characterized in that: It is also provided with a support for supporting the first catheter.

5. The automatic dispensing system for handling agents in a variable-volume container according to any one of claims 1 to 4, characterized in that: The negative pressure sensor is connected to the first conduit and / or the extraction device via a branch pipe.

6. The automatic dispensing system for handling agents in a variable-volume container according to claim 1, characterized in that: The preset pressure value of the negative pressure sensor is less than the vacuum pressure of 0 kPa.

7. The automatic dispensing system for handling agents in a variable-volume container according to claim 1, characterized in that: The travel support includes a first travel track and a second travel track. The locking tongue assembly reciprocates along the first travel track, and the operation key assembly reciprocates along the second travel track. The extension directions of the first travel track and the second travel track are different.

8. The automatic dispensing system for handling agents in a variable-volume container according to claim 7, characterized in that: The latch assembly includes a latch seat, on which a slider is provided, and the slider slides along the first travel track.

9. The automatic dispensing system for handling agents in a variable-volume container according to claim 8, characterized in that: The locking tongue seat is also provided with a first pin, and the two ends of the support arm are respectively provided with retaining rings. The first pin passes through the retaining ring located at one end of the support arm.

10. The automatic dispensing system for handling agents in a variable-volume container according to claim 9, characterized in that: The operation key assembly includes an operation key insert, on which a second pin is provided, and the second pin passes through the retaining ring located at the other end of the support arm.

11. The automatic dispensing system for handling agents in a variable-volume container according to claim 10, characterized in that: The operation key slides along the second travel track.

12. The automatic dispensing system for a variable-volume containerized treatment agent according to any one of claims 1, 8 to 11, characterized in that: The container spout locking device also includes an elastic element, one end of which abuts against the latch assembly. Under the action of the elastic element, the latch assembly tends to extend the latch into the latch hole and drives the operation key assembly to reset.

13. The automatic dispensing system for handling agents in a variable-volume container according to claim 12, characterized in that: The container spout locking device also includes a mating component, and the other end of the elastic element abuts against the mating component.

14. The automatic dispensing system for a variable-volume containerized treatment agent according to any one of claims 1 to 4, 6 to 11, and 13, characterized in that: The first conduit has a groove formed on the circumferential outer wall of the end connected to the variable volume container for the treatment agent, and a seal is installed in the groove.

15. The automatic dispensing system for handling agents in a variable-volume container according to claim 14, characterized in that: The slot is formed by annular protrusions spaced apart on the outer circumferential wall of the first conduit, or annular grooves spaced apart on the outer circumferential wall of the first conduit.

16. The automatic dispensing system for handling agents in a variable-volume container according to claim 14, characterized in that: The sealing element includes a sealing ring and a sealing lip. The sealing ring is fitted into the groove. One end of the sealing lip is connected to the sealing ring, and the other end of the sealing lip extends radially outward in a direction opposite to that toward the variable volume container for the treatment agent.

17. The automatic dispensing system for handling agents in a variable-volume container according to claim 16, characterized in that: The cross-section of the seal is approximately V-shaped or Y-shaped.

18. The automatic dispensing system for a variable-volume containerized treatment agent according to any one of claims 1 to 4, 6 to 11, 13, 15 to 17, characterized in that: The first conduit has a pin protruding outward at the end where it connects to the variable-volume containerized treatment agent, and the pin allows the first conduit to communicate with the variable-volume containerized treatment agent.

19. The automatic dispensing system for a variable-volume container for handling agents according to claim 18, characterized in that: The ejector pin includes a connecting leg, which is connected to the wall of the inner cavity at the tip of the first catheter.

20. The automatic dispensing system for handling agents in a variable-volume container according to claim 1, characterized in that: It also includes a mixing chamber, and the extraction device is connected to the mixing chamber via a second conduit.

21. The automatic dispensing system for handling agents in a variable-volume container according to claim 20, characterized in that: The mixing chamber is at least partially enclosed by a bottom shell, which has an irregular geometric structure.

22. A washing machine, characterized in that: The automatic dispensing system for packaging treatment agents using a variable-volume container as described in any of claims 1 to 21.

23. A dishwasher, characterized in that: The automatic dispensing system for packaging treatment agents using a variable-volume container as described in any of claims 1 to 21.

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