Liquid feeding device and cleaning equipment

Abstract

The invention discloses a liquid feeding device and cleaning equipment, and belongs to the technical field of cleaning equipment. The liquid feeding device comprises a liquid bottle; the liquid bottle is inversely arranged on the cover plate; the liquid storage tank is connected with the cover plate, and the liquid storage tank is provided with a second cavity; the periphery of the cover plate is sleeved with the first sealing piece, and the first sealing piece abuts against the liquid bottle; the second sealing piece is arranged on the periphery of the cover plate in a sleeving mode and abuts against the liquid storage tank; the first sealing element and the second sealing element enable the liquid bottle, the cover plate and the liquid storage tank to form a closed cavity; the detection part is connected with the second cavity through a connecting assembly, the detection part obtains the liquid level of the liquid in the liquid bottle by monitoring the gas pressure in the second cavity, the connecting assembly comprises a membrane, and the membrane can prevent the liquid from entering the detection part. According to the device, the problem that liquid in the liquid bottle overflows due to external temperature rise, and the table top of the feeding device is dirty can be solved. Meanwhile, the liquid level of the liquid in the liquid bottle can be monitored in real time, so that the liquid can be accurately fed, and the washing effect of the cleaning equipment is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and particularly relates to a liquid dispensing device and a cleaning equipment. Background Art

[0002] With the rapid iteration of smart home technology and the increasing demand of consumers for a convenient life, household appliances such as washing machines and dishwashers with a cleaning liquid dispensing function have gradually become the mainstream in the market. Among them, an external cleaning liquid dispensing device can be used in conjunction with ordinary cleaning equipment, and can accurately dispense the cleaning liquid without manual intervention, thus simplifying the cleaning process and bringing great convenience to users.

[0003] In the existing external cleaning liquid dispensing device, the liquid bottle adopts an inverted liquid seal. When the external temperature rises, the gas in the bottle expands, and the liquid in the liquid bottle is squeezed out, overflowing onto the tabletop of the dispensing device, resulting in dirt on the tabletop of the dispensing device and loss of the liquid in the liquid bottle. In addition, most of the existing liquid level detection devices are float type or probe type detection devices. The accuracy of these devices is relatively low, and the float type or probe type detection devices need to be in contact with the liquid for a long time during use, and are easily affected by factors such as corrosion of the cleaning liquid and interference of impurities, making it difficult to accurately measure the actual liquid level of the cleaning liquid, resulting in inaccurate dispensing amount and affecting the cleaning effect. Summary of the Invention

[0004] To solve the above problems, the present invention provides a liquid dispensing device and a cleaning equipment, which solve the problems that when the external temperature rises, the liquid in the liquid bottle overflows, resulting in dirt on the tabletop of the dispensing device, and the existing liquid level detection device has low detection accuracy and is immersed in the liquid for a long time, being corroded by the cleaning liquid and making it difficult to accurately measure the actual liquid level of the cleaning liquid, resulting in inaccurate dispensing amount and affecting the cleaning effect.

[0005] In the first aspect, the present invention provides a liquid dispensing device, including:

[0006] A liquid bottle;

[0007] A cover plate, on which the liquid bottle is inverted;

[0008] A liquid storage tank, which is connected to the cover plate, and the liquid storage tank is provided with a second chamber;

[0009] A first seal, sleeved on the outer periphery of the cover plate, and the first seal abuts against the liquid bottle;

[0010] A second seal, which is sleeved on the outer periphery of the cover plate and abuts against the liquid storage tank; the first seal and the second seal form a closed chamber for the liquid bottle, the cover plate and the liquid storage tank;

[0011] A detection piece and a connection component, the detection piece is connected to the second chamber through the connection component, the detection piece obtains the liquid level of the liquid in the liquid bottle by monitoring the gas pressure in the second chamber, the connection component includes a diaphragm, and the diaphragm is installed between the detection piece and the second chamber and can prevent liquid from entering the detection piece.

[0012] In an embodiment of the present invention, the first seal includes a first protrusion, a second protrusion, and a third protrusion. The first protrusion is located at one end of the first seal and can abut against the liquid bottle.

[0013] The second protrusion is on the same side as the first protrusion. The second protrusion and the third protrusion are arranged on both sides of the first seal in opposite directions. The second protrusion abuts against the liquid bottle, and the third protrusion abuts against the cover plate. A seal is formed between the liquid bottle and the cover plate to prevent liquid from overflowing from the connection between the two during use. At the same time, the third protrusion is nested in the cover plate, which can prevent the first seal from being taken out by the liquid bottle when the liquid bottle is replaced and pulled out.

[0014] In an embodiment of the present invention, the cover plate includes a puncturing column, a first groove, and a second groove. The first groove is provided around the outer circumference of the puncturing column. The third protrusion is nested in the first groove, and the second seal is nested in the second groove. By providing the first seal and the second seal, a closed cavity is formed between the liquid bottle, the cover plate, and the liquid storage tank, avoiding the liquid in the liquid bottle from overflowing when the external temperature rises, causing the tabletop of the dispensing device to become dirty and the loss of the liquid in the liquid bottle.

[0015] In an embodiment of the present invention, the liquid storage tank includes a first chamber, the first chamber is communicated with the second chamber, the first chamber is communicated with the cover plate, and the first chamber abuts against the second seal.

[0016] In an embodiment of the present invention, the liquid storage tank further includes a sealing plate and an interface. The sealing plate is located on one side of the second chamber and is connected to the liquid storage tank. The interface is inclined and connected to the connection component. It is beneficial for the liquid liquefied on the wall of the second connecting pipe to flow back into the second chamber. The sealing plate and the liquid storage tank can be hermetically connected by ultrasonic welding, hot melt welding, caulking, or silicone pressing, etc., so that the second chamber forms a closed chamber.

[0017] In an embodiment of the present invention, the connection component further includes a first connecting pipe, a second connecting pipe, a connector, and a clamp. The first connecting pipe and the second connecting pipe are connected through the connector, and the clamp is sleeved on the outer circumference of the second connecting pipe.

[0018] The first connecting tube is connected to the detection element on its side facing away from the adapter, and the second connecting tube is connected to the interface on its side facing away from the adapter, connecting the detection element to the second chamber. Both the first and second connecting tubes are silicone tubes. A waterstop clamp can clamp the second connecting tube to seal it. This facilitates calibration of the detection element and prevents prolonged liquid sealing in the second chamber and prolonged pressure on the pipeline, which could lead to inaccurate measurement accuracy of the detection element. Calibration of the detection element can maintain measurement accuracy.

[0019] In one embodiment of the present invention, the adapter includes two pagoda heads, one connected to the first connecting tube and the other to the second connecting tube. The diaphragm is a silicone diaphragm with a cross-shaped opening at the center, located between the two pagoda heads. The diaphragm prevents volatile gases from entering the detection element along the connecting tubes, thereby extending the service life of the detection element.

[0020] In one embodiment of the present invention, a connecting member and a delivery pump are further included, wherein the delivery pump is connected to the first chamber via the connecting member, and the connecting member is a silicone tube. The silicone tube has corrosion resistance, high temperature resistance, and aging resistance, and can extend the service life of the delivery device.

[0021] In one embodiment of the present invention, the liquid bottle includes a shell, a movable part and an elastic body. The movable part abuts against the shell through the elastic body, and the movable part can abut against the puncture column.

[0022] In a second aspect, the present invention further provides a cleaning device, comprising the liquid delivery device. The cleaning device further comprises a device body. The liquid delivery device is arranged on the outside of the device body and is suitable for delivering cleaning liquid into the device body.

[0023] Beneficial effects of the present invention:

[0024] 1. The present invention provides a liquid dispensing device and cleaning equipment. By disposing a first sealing member and a second sealing member between the liquid bottle, the cover plate, and the liquid storage tank, a closed chamber is formed between the liquid bottle, the cover plate, and the liquid storage tank. This not only prevents the liquid in the liquid bottle from expanding and overflowing due to rising external temperature, causing the surface of the dispensing device to become dirty, but also avoids the loss of liquid in the liquid bottle due to liquid overflow, which causes waste.

[0025] 2. The liquid dispensing device is configured by arranging a second chamber on one side of the liquid storage tank and sealing the second chamber with a sealing plate. The first chamber is in communication with the second chamber. The pressure formed by the height of the liquid in the liquid bottle is transmitted to the second chamber through the liquid, squeezing the air in the second chamber. The higher the liquid level in the liquid bottle, the greater the pressure formed. The detection component monitors the actual height of the liquid in the liquid bottle by continuously monitoring the pressure fluctuation of the gas in the second chamber, thereby obtaining the usage amount of the liquid in the liquid bottle, enabling it to dispense the cleaning liquid into the device more precisely and ensuring the washing effect of the cleaning device.

[0026] 3. By arranging a diaphragm in the connection assembly, the liquid dispensing device can block the liquid volatilized and heated in the second chamber, preventing the volatilized liquid from corroding the detection component. Moreover, the second connecting pipe is inclined at the interface, which is conducive to the liquefied liquid on the wall of the second connecting pipe flowing back into the second chamber, avoiding flowing into the detection component and damaging the detection component, thereby extending the service life of the detection component.

[0027] 4. The detection component of the liquid dispensing device is connected to the second chamber through a connection assembly. The water stop clamp is installed on the second connecting pipe. At a specified time, by pressing the water stop clamp, the second connecting pipe is separated from the first connecting pipe, enabling calibration of the detection component, avoiding the problem of inaccurate measurement accuracy of the detection component caused by the pipeline being under pressure for a long time, and thus improving the accuracy of the detection component. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is an exploded view of the liquid dispensing device provided by an embodiment of the present invention;

[0029] Figure 2 is a cross-sectional view of the liquid dispensing device provided by an embodiment of the present invention;

[0030] Figure 3 is a cross-sectional view of the liquid bottle provided by an embodiment of the present invention;

[0031] Figure 4 is Figure 3 a partial enlarged view of A in

[0032] Figure 5 is a cross-sectional view of the liquid dispensing device provided by an embodiment of the present invention from another perspective;

[0033] Figure 6 is Figure 5 a partial enlarged view of B in

[0034] Figure 7 is an exploded view of the connection assembly provided by an embodiment of the present invention;

[0035] In the figures:

[0036] 1. Liquid bottle; 11. Housing; 12. Movable part; 13. Elastic body; 14. Vent pipe; 2. First seal; 21. First protrusion; 22. Second protrusion; 23. Third protrusion; 3. Cover plate; 31. Piercing column; 32. First groove; 33. Second groove; 4. Second seal; 5. Liquid storage tank; 51. First chamber; 52. Second chamber; 53. Sealing plate; 54. Interface; 6. Detection part; 7. Connection assembly; 71. First connecting pipe; 72. Second connecting pipe; 73. Adapter; 731. Bell mouth; 732. Diaphragm; 74. Water stop clip; 8. Connector; 9. Delivery pump. Detailed implementation mode

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0039] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0040] Such as Figures 1 to 7As shown in the figure, the present invention provides a liquid dispensing device and a cleaning device. The liquid dispensing device includes a liquid bottle 1, a cover plate 3, a liquid storage tank 5, a detection member 6, a connection assembly 7, a connecting member 8, and a dispensing pump 9. The liquid bottle 1 is used to store the cleaning liquid. The liquid bottle 1 is inverted above the cover plate 3, and a first sealing member 2 is provided therebetween. A seal is formed between the liquid bottle 1 and the cover plate 3 through the first sealing member 2. The side of the cover plate 3 facing away from the liquid bottle 1 is connected to the liquid storage tank 5, and a seal is formed between the cover plate 3 and the liquid storage tank 5 through a second sealing member 4. The liquid bottle 1, the cover plate 3, and the liquid storage tank 5 form a closed cavity through the first sealing member 2 and the second sealing member 4, preventing the liquid in the liquid bottle 1 from overflowing onto the tabletop of the dispensing device to form dirt. A through hole is provided in the center of the cover plate 3, enabling the liquid in the liquid bottle 1 to flow into the liquid storage tank 5 through the through hole. The detection member 6 is installed on one side of the liquid storage tank 5 and is connected to the liquid storage tank 5 through the connection assembly 7. The detection member 6 can detect the height of the liquid in the liquid bottle 1 in real time. The liquid storage tank 5 is connected to the dispensing pump 9 through the connecting member 8, and the liquid in the liquid storage tank 5 is dispensed into the cleaning device through the dispensing pump 9.

[0041] In some embodiments, the liquid bottle 1 includes a housing 11, a movable member 12, an elastic body 13, and a ventilation pipe 14. The inner part of the bottle mouth of the liquid bottle 1 is a one-way valve structure. A movable member 12 and an elastic body 13 are provided at the bottle mouth of the liquid bottle 1. In the unused state, the movable member 2 abuts against the housing 11 at the bottle mouth through the elastic force provided by the elastic body 13, forming a closed chamber in the liquid bottle 1 to prevent the liquid in the liquid bottle 1 from overflowing. The ventilation pipe 14 is installed in the liquid bottle 1. When the liquid bottle 1 is inverted and installed on the cover plate 3, the ventilation pipe 14 can communicate a part of the gas in the liquid bottle 1 with the outside, making the air pressure in the liquid bottle 1 the same as the outside atmospheric pressure. When the dispensing pump 9 is powered on to pump liquid, the liquid in the liquid bottle 1 is pumped out by the dispensing pump 9. The liquid bottle 1 intakes air through the ventilation pipe 14 to maintain the stability of the volume inside the bottle, ensuring that the liquid bottle 1 is not sucked flat and the dispensing accuracy of the dispensing pump 9.

[0042] As Figures 2 to 4 As shown in the figure, in some embodiments, the first sealing member 2 is provided with a first protrusion 21, which can abut against the housing 11. The first protrusion 21 makes the first sealing member 2 form an inverted buckle structure, preventing the liquid bottle 1 from expanding after being heated, and the ventilation pipe 14 is not in time to discharge the air inside the liquid bottle 1, causing the liquid bottle 1 to be pushed out and separated from the first sealing member 2. The first sealing member 2 is further provided with a second protrusion 22 and a third protrusion 23, which are arranged on both sides of the first sealing member 2 in opposite directions. The second protrusion 22 and the first protrusion 21 are on the same side. The second protrusion 22 abuts against the housing 11. The third protrusion 23 is nested in the cover plate 3 and abuts against the cover plate 3, forming a seal between the liquid bottle 1 and the cover plate 3 to prevent the liquid from overflowing from the connection between the two during use. At the same time, the third protrusion 23 is nested in the cover plate 3, which can prevent the first sealing member 2 from being taken out by the liquid bottle 1 when the liquid bottle 1 is replaced and pulled out.

[0043] In some embodiments, the cover plate 3 is provided with a puncturing column 31. A through hole is provided in the middle of the puncturing column 31, and one end is a tip, which can abut against the movable member 12. After the liquid bottle 1 is installed on the cover plate 3, the movable member 12 is pushed open by the puncturing column 31, and the liquid in the liquid bottle 1 flows into the liquid storage tank 5 through the through hole in the middle of the puncturing column 31 for standby. The cover plate 3 is further provided with a first groove 32 and a second groove 33. The first groove 32 is located on one side of the puncturing column 31, and the third protrusion 23 is nested in the first groove 32 to connect the first seal 2 with the cover plate 3. The second groove 33 is located on the side of the first groove 32 away from the puncturing column 31, and the second seal 4 is nested in the second groove 33 to form a seal between the cover plate 3 and the liquid storage tank 5. A protrusion is also provided on the side of the second seal 4 close to the liquid storage tank 5, which can form extrusion with the liquid storage tank 5 to increase the sealing performance between the cover plate 3 and the liquid storage tank 5. By providing the first seal 2 and the second seal 4, a closed cavity is formed among the liquid bottle 1, the cover plate 3 and the liquid storage tank 5, avoiding the overflow of the liquid in the liquid bottle 1 when the external temperature rises, resulting in the soiling of the tabletop of the dispensing device and the loss of the liquid in the liquid bottle 1.

[0044] As Figure 5 and Figure 6As shown, in some embodiments, the liquid storage tank 5 is provided with a first chamber 51. The second seal 4 abuts against the inner wall of the first chamber 51 to form a seal between the cover plate 3 and the first chamber 51. The first chamber 51 is in communication with the cover plate 3 and the liquid bottle 1. The first chamber 51 is connected to the dispensing pump 9 through a connecting member 8. The liquid in the liquid bottle 1 flows into the first chamber 51 through the through hole in the middle of the piercing column 31. After the dispensing pump 9 is powered on, it pumps the liquid in the first chamber 51 through the connecting member 8 into the cleaning device. A second chamber 52 is provided on one side of the first chamber 51. The second chamber 52 is a gas chamber. One end of the second chamber 52 is provided with a sealing plate 53. The sealing plate 53 is connected to the liquid storage tank 5. A sealed connection can be formed between the sealing plate 53 and the liquid storage tank 5 by ultrasonic welding, hot melt welding, caulking or silicone pressing, etc., so that the second chamber 52 forms a closed chamber. An interface 54 is provided at one end of the second chamber 52 facing away from the sealing plate 53. The interface 54 is inclined in the direction close to the liquid storage tank 5. The second chamber 52 is connected to the connecting assembly 7 through the interface 54. The end of the connecting assembly 7 facing away from the interface 54 is connected to the detecting member 6. One end of the second chamber 52 close to the sealing plate 53 is in communication with one end of the first chamber 51 away from the cover plate 3. When the liquid bottle 1 is installed on the cover plate 3 and the liquid flows into the first chamber 51, the liquid in the first chamber 51 flows into the second chamber 52 through the communication part and squeezes the air in the second chamber 52 to form a liquid seal position. Since the liquid bottle 1, the cover plate 3 and the liquid storage tank 5 are hermetically connected, the liquid bottle 1 is in communication with the outside air through the air exchange pipe 14. The height of the liquid in the liquid bottle 1 forms a pressure that is transmitted to the second chamber 52, squeezing the air in the second chamber 52. The higher the liquid level in the liquid bottle 1, the greater the formed pressure. The detecting member 6 monitors the actual height of the liquid in the liquid bottle 1 by monitoring the pressure fluctuation of the gas in the second chamber 52 in real time, so as to accurately obtain the usage amount of the liquid in the liquid bottle 1, enabling the dispensing device to accurately dispense the cleaning liquid and ensuring the washing effect of the cleaning device.

[0045] As Figure 7As shown, in some embodiments, the connecting assembly 7 includes a first connecting tube 71 and a second connecting tube 72, the first connecting tube 71 and the second connecting tube 72 are connected by an adapter 73, the end of the first connecting tube 71 away from the adapter 73 is connected to the detection member 6, and the end of the second connecting tube 72 away from the adapter 73 is connected to the interface 54. The pressure formed by the compression of the gas in the second chamber 52 is transmitted to the detection member 6 through the second connecting tube 72, the adapter 73 and the first connecting tube 71, so that the detection member 6 can monitor the changes in the gas pressure in the second chamber 52 in real time without being immersed in liquid, thereby avoiding the problem of the detection member 6 being corroded by the liquid. The adapter 73 includes a pagoda head 731 and a diaphragm 732. There are two pagoda heads 731, which are respectively connected to the first connecting tube 71 and the second connecting tube 72. The diaphragm 732 is a silicone cross-mouth diaphragm located between the two pagoda heads 731. The liquid in the liquid bottle 1 is mostly a corrosive disinfectant such as a sterilizing liquid. When the liquid in the second chamber 52 evaporates due to heat, in order to prevent the volatilized liquid from corroding the detection component 6, the second connecting tube 72 is connected to the interface 54 at an angle, which is conducive to the liquefied liquid on the wall of the second connecting tube 72 to flow back into the second chamber 52. At the same time, the diaphragm 732 is provided to prevent the volatilized gas from entering the detection component 6 along the connecting tube, thereby extending the service life of the detection component 6.

[0046] In some embodiments, the second connecting tube 72 is further provided with a water-stop clamp 74 that can clamp the second connecting tube 72 to seal it. After the pagoda head 731 is disconnected from the second connecting tube 72, the detection member 6 is calibrated to prevent the liquid in the second chamber 52 from being sealed for a long time and the pipeline from being under pressure for a long time, which would lead to inaccurate measurement accuracy of the detection member 6. By calibrating the detection member 6, the measurement accuracy can be maintained.

[0047] Optionally, the detection component 6 is a water level sensor or a pressure sensor.

[0048] Optionally, the first connecting tube 71, the second connecting tube 72 and the connecting piece 8 are all silicone tubes. Silicone tubes have the functions of corrosion resistance, high temperature resistance, and aging resistance, and can extend the service life of the delivery device.

[0049] In summary, for the liquid dispensing device provided by the present invention, by providing the first seal 2 and the second seal 4, a closed cavity is formed among the liquid bottle 1, the cover plate 3, and the liquid storage tank 5. When the external temperature rises, the liquid in the liquid bottle 1 expands due to heat and will not overflow onto the tabletop of the dispensing device, avoiding the formation of dirt and the loss of the liquid in the liquid bottle 1. The liquid in the liquid bottle flows into the first chamber 51 of the liquid storage tank 5 through the hole in the middle of the puncturing column 31 and is connected to the dispensing pump 9 through the connecting piece 8. After the dispensing pump 9 is powered on, it can quantitatively pump the liquid in the first chamber 51 into the cleaning device. Since the first chamber 51 communicates with the second chamber 52, the liquid in the first chamber 51 flows into the second chamber 52, squeezing the gas in the second chamber 52. The higher the liquid level in the liquid bottle 1, the greater the pressure formed. The detection piece 6 monitors the actual height of the liquid in the liquid bottle 1 by monitoring the pressure fluctuation of the gas in the second chamber 52 in real time, so as to accurately obtain the usage amount of the liquid in the liquid bottle 1, enabling the dispensing device to accurately dispense the cleaning liquid and ensuring the washing effect of the cleaning device.

[0050] In addition, the present invention also provides a cleaning device using the liquid dispensing device. The cleaning device further includes a device body, and the liquid dispensing device is installed outside the device body. The liquid in the liquid dispensing device is quantitatively dispensed into the device body through the dispensing pump 9. Among them, the cleaning device can be a commercial cleaning device such as a washing machine, a dishwasher, a dry cleaner, and a dryer. Since the cleaning device uses the liquid dispensing device of any one of the above, it has all the above advantages.

[0051] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A liquid dispensing device, characterized in that, Comprising: Liquid bottle (1); Cover plate (3), with the liquid bottle (1) inverted on the cover plate (3); Liquid storage tank (5), the liquid storage tank (5) is connected to the cover plate (3), and the liquid storage tank (5) is provided with a second chamber (52); First seal (2), sleeved on the outer periphery of the cover plate (3), and the first seal (2) abuts against the liquid bottle (1); Second seal (4), the second seal (4) is sleeved on the outer periphery of the cover plate (3) and abuts against the liquid storage tank (5); the first seal (2) and the second seal (4) form a closed chamber for the liquid bottle (1), the cover plate (3) and the liquid storage tank (5); Detection member (6) and connection assembly (7), the detection member (6) is connected to the second chamber (52) through the connection assembly (7), and the detection member (6) obtains the liquid level in the liquid bottle (1) by monitoring the gas pressure in the second chamber (52), and the connection assembly (7) includes a diaphragm (732), and the diaphragm (732) is installed between the detection member (6) and the second chamber (52) and can prevent liquid from entering the detection member (6).

2. The liquid dispensing device according to claim 1, wherein The first seal (2) includes a first protrusion (21), a second protrusion (22) and a third protrusion (23), the first protrusion (21) is located at one end of the first seal (2) and can abut against the liquid bottle (1); The second protrusion (22) is on the same side as the first protrusion (21), the second protrusion (22) and the third protrusion (23) are arranged on both sides of the first seal (2) in opposite directions, the second protrusion (22) abuts against the liquid bottle (1), and the third protrusion (23) abuts against the cover plate (3).

3. The liquid dispensing device according to claim 2, characterized in that, The cover plate (3) includes a puncturing column (31), a first groove (32) and a second groove (33), the first groove (32) is provided around the outer periphery of the puncturing column (31), the third protrusion (23) is nested in the first groove (32), and the second seal (4) is nested in the second groove (33).

4. A liquid dispensing device according to claim 1, wherein The liquid storage tank (5) includes a first chamber (51), the first chamber (51) is communicated with the second chamber (52), the first chamber (51) is communicated with the cover plate (3), and the first chamber (51) abuts against the second seal (4).

5. A liquid dispensing device according to claim 4, wherein, The liquid storage tank (5) further includes a sealing plate (53) and an interface (54), the sealing plate (53) is located on one side of the second chamber (52) and is connected to the liquid storage tank (5), and the interface (54) is inclined and connected to the connection assembly (7).

6. The liquid dispensing device according to claim 5, wherein, The connection assembly (7) further includes a first connecting pipe (71), a second connecting pipe (72), a connector (73) and a water stop clip (74), the first connecting pipe (71) and the second connecting pipe (72) are connected through the connector (73), and the water stop clip (74) is sleeved on the outer periphery of the second connecting pipe (72); One side of the first connecting pipe (71) facing away from the adapter (73) is connected to the detection member (6), and one side of the second connecting pipe (72) facing away from the adapter (73) is connected to the interface (54), so that the detection member (6) communicates with the second chamber (52). Both the first connecting pipe (71) and the second connecting pipe (72) are silicone hoses.

7. The liquid dispensing device according to claim 6, characterized in that, The adapter (73) includes two bell mouths (731) which are respectively connected to the first connecting pipe (71) and the second connecting pipe (72). The diaphragm (732) is a silicone diaphragm with a cross-shaped opening at the center and is located between the two bell mouths (731).

8. A liquid dispensing device according to claim 4, characterized in that, It further includes a connecting member (8) and a dosing pump (9). The dosing pump (9) is connected to the first chamber (51) through the connecting member (8), and the connecting member (8) is a silicone hose.

9. The liquid dispensing device according to claim 3, characterized in that, The liquid bottle (1) includes a housing (11), a movable member (12) and an elastic body (13). The movable member (12) abuts against the housing (11) through the elastic body (13), and the movable member (12) can abut against the piercing column (31).

10. A cleaning device, characterized in that, It includes a liquid dispensing device according to any one of claims 1-9. The cleaning device further includes a device body, and the liquid dispensing device is provided outside the device body and is adapted to dispense a cleaning liquid to the device body.

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