A beverage preparation device

Abstract

The present invention provides a beverage preparation device, which includes a solution bottle, a water supply device, a gas supply device, and a control device. The gas supply device includes a first pump body and a gas cylinder assembly. The first pump body is communicated with a water tank. The gas cylinder assembly includes a bottle body and a switch assembly provided at the bottle mouth of the bottle body. The switch assembly includes a hydraulic chamber and a movable assembly that can open or close the exhaust port of the bottle body under the pressure in the hydraulic chamber. The hydraulic chamber is communicated with the first pump body, and the exhaust port of the bottle body is communicated with the solution bottle. The control device is configured to send a first control instruction to the first pump body to pump the water in the water tank into the hydraulic chamber, so as to open the exhaust port of the bottle body when the pressure exerted by the hydraulic chamber on the movable assembly exceeds a first preset threshold, and make the gas in the bottle body flow to the solution bottle. By setting the control device and the first pump body, the above beverage preparation device can accurately control the amount of gas injected into the solution bottle to meet the different requirements of different users for the taste of sparkling water.

Description

Technical Field

[0001] The present invention relates to the technical field of beverage preparation, and particularly to a beverage preparation device. Background Art

[0002] Existing bubble water machines generally add gas to water by manual pressing and can only add a certain amount of gas. However, manual control of making bubbles is very inconvenient for users to operate and is not conducive to accurately controlling the amount of gas added to water. For example, Chinese Patent No. CN114916826A discloses a portable bubble water machine. It drives a slider to slide along a chute by rotating the upper cover clockwise, so as to push the rotating seat to move downward, and then downwardly squeeze the accommodating chamber and the gas cylinder, so that the gas cylinder is punctured by a puncturing thimble. The carbon dioxide gas in the gas cylinder passes through the puncturing thimble and the air inlet rod to the water bottle filled with water to realize the production of bubble water. It can be seen that the preparation of this portable bubble water machine requires manual rotation by the user and can only add a certain amount of gas to water. Users cannot adjust the amount of gas added to water according to their preferences, that is, it cannot meet the different requirements of different users for the taste of bubble water. Summary of the Invention

[0003] In view of the above technical problems existing in the prior art, the present invention provides a beverage preparation device, which can accurately control the amount of gas injected into the solution bottle by setting a control device and a first pump body, so as to meet the different requirements of different users for the taste of bubble water.

[0004] An embodiment of the present invention provides a beverage preparation device, including:

[0005] A solution bottle;

[0006] A water supply device, which includes a water tank for supplying water to the solution bottle;

[0007] A gas supply device, which includes a first pump body and a gas cylinder assembly. The first pump body is communicated with the water tank. The gas cylinder assembly includes a cylinder body and a switch assembly arranged at the bottle mouth of the cylinder body. The switch assembly includes a hydraulic chamber and a movable assembly that can open or close the exhaust port of the cylinder body under the pressure in the hydraulic chamber. Wherein, the hydraulic chamber is communicated with the first pump body, and the exhaust port of the cylinder body is communicated with the solution bottle;

[0008] A control device, which is electrically connected to the first pump body. The control device is configured to send a first control instruction to the first pump body to pump the water in the water tank into the hydraulic cavity, so that when the pressure exerted by the hydraulic cavity on the movable assembly exceeds a first preset threshold, the exhaust port of the bottle body is opened to allow the gas in the bottle body to flow into the solution bottle. By setting the control device and the first pump body, the above beverage preparation device can accurately control the amount of gas injected into the solution bottle to meet the different requirements of different users for the taste of sparkling water.

[0009] In some embodiments, the control device is further configured to send a second control instruction to the first pump body to make it close. After the first pump body is closed, the liquid in the hydraulic cavity flows back into the water tank through the first pump body under the action of pressure to release the pressure exerted by the hydraulic cavity on the movable assembly, so that the exhaust port of the bottle body is closed. In this way, it is possible to automatically inject gas into the solution bottle and accurately control the amount of injected gas.

[0010] In some embodiments, the switch assembly includes an elastic sleeve and an upper cover. The upper end of the elastic sleeve is open, the upper cover is covered on the upper opening of the elastic sleeve, and the upper cover and the elastic sleeve enclose to form the hydraulic cavity. The above structural design is simple and the layout is compact.

[0011] In some embodiments, the movable assembly includes a movable plate disposed at the bottom of the elastic sleeve and a piston member abutted against the movable plate. The piston member is used to block or release the exhaust port. After the hydraulic cavity is filled with water, the elastic sleeve expands to drive the movable plate to press against the piston member, so that the piston member moves to open the exhaust port. By setting the piston member, the exhaust port can be stably blocked or released reciprocally, and the above structural design is compact and the transmission is stable.

[0012] In some embodiments, the movable plate includes an upper plate body and a lower plate body. The upper plate body is disposed in the hydraulic cavity and on the inner bottom of the elastic sleeve, the lower plate body is disposed outside the hydraulic cavity and on the outer bottom of the elastic sleeve, and the upper plate body and the lower plate body are connected by a connecting member passing through the bottom of the elastic sleeve. Through the above structure, the contact area between the movable plate and the piston member can be increased, so that the elastic sleeve can stably act on the piston member through the movable plate.

[0013] In some embodiments, the movable assembly further includes a bolt. The two ends of the bolt respectively abut against the movable plate and the piston member, so that the movable plate acts on the piston member through the bolt. The above structural design is reasonable and the layout is compact.

[0014] In some embodiments, the beverage preparation device further includes a pressure relief valve which is respectively communicated with the solution bottle and the water tank. The water tank is provided with a ventilation hole. The pressure relief valve is configured to discharge the gas in the solution bottle into the water tank when the air pressure in the solution bottle exceeds a second preset threshold. By providing the pressure relief valve, the pressure value in the solution bottle can be kept within a safe range, which not only ensures that more gas is filled, but also can relieve the pressure in time by the pressure relief valve when too much gas is filled.

[0015] In some embodiments, the water supply device further includes a second pump body communicated with the solution bottle. The second pump body is configured to pump the water in the water tank into the solution bottle. The control device is electrically connected to the second pump body to control the opening and closing of the second pump body. In this way, the amount of water pumped from the water tank into the solution bottle by the second pump body can be accurately controlled.

[0016] In some embodiments, a first one-way valve and a second one-way valve are arranged on the water pipeline where the second pump body is communicated with the solution bottle. The first one-way valve is located downstream of the second one-way valve. By providing the second one-way valve, the water flowing into the solution bottle can be prevented from flowing back into the water tank.

[0017] In some embodiments, the beverage preparation device further includes a third pump body and a cup body. The third pump body is configured to pump the liquid in the solution bottle into the cup body. An electromagnetic valve is arranged on the water pipeline where the third pump body is communicated with the solution bottle. The electromagnetic valve is electrically connected to the control device to achieve automatic liquid discharge, which is convenient for users to use.

[0018] Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows: Through the first pump body communicated with the hydraulic cavity of the gas supply device and the movable component capable of opening or closing the exhaust port of the bottle body under the action of the hydraulic cavity, after the control device sends a first control instruction to the first pump body to pump the water in the water tank into the hydraulic cavity, the hydraulic cavity can apply pressure to the movable component, thereby opening the exhaust port of the bottle body. In this way, by controlling the opening and closing of the first pump body by the control device, the movable component can be controlled to open or close the exhaust port of the bottle body, so as to accurately control the amount of gas injected into the solution bottle, and thus different-taste sparkling water can be prepared quickly and accurately to meet the different requirements of different users for the taste of sparkling water. Description of the Drawings

[0019] In the accompanying drawings, which are not necessarily to scale, the same reference numerals may describe similar components in different views. The same reference numerals with alphabetic suffixes or different alphabetic suffixes may represent different instances of similar components. The drawings generally illustrate various embodiments by way of example and not limitation, and are used in conjunction with the specification and the claims to explain the disclosed embodiments. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be an exhaustive or exclusive embodiment of the device or method.

[0020] Figure 1 is a structural block diagram of a beverage preparation device according to an embodiment of the present invention;

[0021] Figure 2 is a schematic structural diagram of a gas cylinder assembly of a beverage preparation device according to an embodiment of the present invention, in which the exhaust port of the bottle body is shown in a closed state;

[0022] Figure 3 is Figure 2 an enlarged view of part A in

[0023] Figure 4 is a schematic structural diagram of a gas cylinder assembly of a beverage preparation device according to an embodiment of the present invention, in which the exhaust port of the bottle body is shown in an open state;

[0024] Figure 5 is Figure 4 an enlarged view of part B in

[0025] The components represented by the reference numerals in the figure:

[0026] 1 - solution bottle; 2 - water tank; 3 - gas supply device; 301 - first pump body; 302 - bottle body; 303 - exhaust port; 304 - hydraulic cavity; 305 - elastic sleeve; 306 - upper cover; 4 - movable assembly; 401 - movable plate; 402 - piston member; 403 - upper plate body; 404 - lower plate body; 405 - connecting member; 406 - pin; 5 - pressure relief valve; 6 - second pump body; 7 - first one-way valve; 8 - third pump body; 9 - cup body; 10 - solenoid valve; 11 - water level sensor; 12 - cooler; 13 - second one-way valve. Detailed Embodiments

[0027] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] An embodiment of the present invention provides a beverage preparation device. As Figures 1 to 5As shown in the figure, the beverage preparation device includes a solution bottle 1, a water supply device, a gas supply device 3, and a control device (not shown in the figure). The water supply device includes a water tank 2 for supplying water to the solution bottle 1. The gas supply device 3 includes a first pump body 301 and a gas cylinder assembly. The first pump body 301 is communicated with the water tank 2. The gas cylinder assembly includes a bottle body 302 and a switch assembly provided at the bottle mouth of the bottle body 302. The switch assembly includes a hydraulic chamber 304 and a movable assembly 4 that can open or close the exhaust port 303 of the bottle body 302 under the pressure in the hydraulic chamber 304. Among them, the hydraulic chamber 304 is communicated with the first pump body 301, and the exhaust port 303 of the bottle body 302 is communicated with the solution bottle 1. The control device is electrically connected to the first pump body 301, and the control device is configured to send a first control instruction to the first pump body 301 to pump the water in the water tank 2 into the hydraulic chamber 304, so that when the pressure exerted by the hydraulic chamber 304 on the movable assembly 4 exceeds a first preset threshold, the exhaust port 303 of the bottle body 302 is opened to allow the gas in the bottle body 302 to flow into the solution bottle 1.

[0029] As Figures 2 to 5 shown, Figure 2 and Figure 3 as shown in, the movable assembly 4 is in the first position of closing the exhaust port 303 of the bottle body 302. Figure 4 and Figure 5 as shown in, the movable assembly 4 is in the second position of opening the exhaust port 303 of the bottle body 302.

[0030] Specifically, the beverage preparation device may further include a cooler 12 communicated with the water tank 2. The water provided to the solution bottle 1 is first cooled by the cooler 12 and then enters the solution bottle 1. The above control device is electrically connected to the cooler 12, and the control device may further be configured to send a signal to the cooler 12 to make the temperature of the water discharged therefrom within a first temperature range, where the first temperature range may be 4°C to 10°C.

[0031] Specifically, the first pump body 301 may specifically be a water pump with a reverse water flow function, such as a gear pump, so that when the first pump body 301 is started under the control of the control device, it can pump the water in the water tank 2 into the hydraulic chamber 304, and when the first pump body 301 is closed under the control of the control device, the water in the hydraulic chamber 304 can flow back into the water tank 2 under pressure through the first pump body 301.

[0032] Specifically, the above beverage preparation device may further include a water level sensor 11 provided in the solution bottle 1. The water level sensor 11 is electrically connected to the control device. The water level sensor 11 is used to detect the water level information in the solution bottle 1. The control device may further be configured to obtain the water level information and send a control instruction to stop the water supply from the water tank 2 to the solution bottle 1 when the water level in the solution bottle 1 reaches a preset water level.

[0033] Specifically, the working time of the first pump body 301 can be understood as the opening time of the exhaust port 303 of the bottle body 302, that is, the time for inflating the solution bottle 1. For example, if the control device can control the working time of the first pump body 301 to be 2 seconds to 4 seconds, then the time for inflating the solution bottle 1 is 2 seconds to 4 seconds.

[0034] In the present invention, the first pump body 301 communicated with the hydraulic chamber 304 of the air supply device 3 and the movable component 4 capable of opening or closing the exhaust port 303 of the bottle body 302 under the action of the hydraulic chamber 304 are adopted. After the control device sends a first control instruction to the first pump body 301 to pump the water in the water tank 2 into the hydraulic chamber 304, the hydraulic chamber 304 can apply pressure to the movable component 4, thereby opening the exhaust port 303 of the bottle body 302. In this way, by controlling the opening and closing of the first pump body 301 by the control device, the movable component 4 can be controlled to open or close the exhaust port 303 of the bottle body 302, achieving the purpose of accurately controlling the amount of gas injected into the solution bottle 1, so that different-taste bubble water can be quickly and accurately prepared to meet the different requirements of different users for the taste of bubble water.

[0035] In some embodiments, the control device is further configured to send a second control instruction to the first pump body 301 to close it. After the first pump body 301 is closed, the liquid in the hydraulic chamber 304 flows back into the water tank 2 through the first pump body 301 under the action of pressure to release the pressure applied by the hydraulic chamber 304 to the movable component 4, so that the exhaust port 303 of the bottle body 302 is closed. In this way, automatic gas injection into the solution bottle 1 can be realized, and the amount of injected gas can be accurately controlled.

[0036] Specifically, the component forming the hydraulic chamber 304 can be made of an elastic material. When the first pump body 301 starts to supply water to the hydraulic chamber 304, the hydraulic chamber 304 will undergo expansion deformation to apply pressure to the movable component 4; when the first pump body 301 is closed and stops supplying water to the hydraulic chamber 304, since the pressure in the hydraulic chamber 304 is greater than the pressure in the water tank 2, the water in the hydraulic chamber 304 will flow back into the water tank 2 through the first pump body 301. At this time, the hydraulic chamber 304 will contract and reset to release the pressure on the movable component 4, thereby closing the exhaust port 303. Among them, the water tank 2 is communicated with the atmosphere.

[0037] In some embodiments, as Figures 2 to 5 shown, the switch assembly includes an elastic sleeve 305 and an upper cover 306. The upper end of the elastic sleeve 305 is open, and the upper cover 306 is covered on the upper opening of the elastic sleeve 305, and the upper cover 306 and the elastic sleeve 305 enclose to form the hydraulic chamber 304. The above structural design is simple and the layout is compact.

[0038] Specifically, the above upper cover 306 can be covered on the upper opening of the elastic sleeve 305 in a detachable manner.

[0039] Specifically, the above-mentioned elastic sleeve 305 is made of an elastic material. A corrugated telescopic part is formed on the outer wall of the elastic sleeve 305. Through the expansion and contraction of the telescopic part, pressure can be applied to the movable component 4 and the pressure applied to the movable component 4 can be released.

[0040] Specifically, the above-mentioned switch component may further include a housing with an upper opening. The outer edge of the upper opening of the elastic sleeve 305 can extend outward to form a lapping part. The elastic sleeve 305 is placed in the upper opening of the housing through this lapping part, and the upper cover 306 is covered on the upper opening of the housing.

[0041] In some embodiments, as Figures 2 to 5 shown, the movable component 4 includes a movable plate 401 provided at the bottom of the elastic sleeve 305 and a piston member 402 abutted against the movable plate 401. The piston member 402 is used to block or release the exhaust port 303. After water is filled in the hydraulic chamber 304, the elastic sleeve 305 expands to drive the movable plate 401 to press against the piston member 402, so that the piston member 402 moves to open the exhaust port 303. By providing the piston member 402, the exhaust port 303 can be stably reciprocally blocked or released, and the above-mentioned structural design is compact and the transmission is stable.

[0042] Specifically, the hardness of the above-mentioned movable plate 401 is greater than that of the elastic sleeve 305, so as to stably abut against the piston member 402 through the movable plate 401.

[0043] Specifically, the above-mentioned piston member 402 includes a piston body and a reset member. The piston body is used to block or release the exhaust port 303, and the reset member is used to apply a force to the piston body to make it move in the direction of the exhaust port 303, so that after the pressure applied by the hydraulic chamber 304 to the movable component 4 is released, the piston body will remain in the state of blocking the exhaust port 303 under the action of the reset member. In addition, the above-mentioned reset member can also act on the movable plate 401 and the elastic sleeve 305 through the piston body after the first pump body 301 stops working, so that the elastic sleeve 305 is reset.

[0044] Specifically, the movable component 4 may further include a sealing ring sleeved outside the piston member 402. The sealing ring is used to seal the exhaust port 303 to further ensure the stability of the piston member 402 blocking the exhaust port 303.

[0045] In some embodiments, as Figure 2 and Figure 3As shown, the movable plate 401 includes an upper plate body 403 and a lower plate body 404. The upper plate body 403 is disposed within the hydraulic chamber 304 and on the inner bottom of the elastic sleeve 305, and the lower plate body 404 is disposed outside the hydraulic chamber 304 and on the outer bottom of the elastic sleeve 305. The upper plate body 403 and the lower plate body 404 are connected by a connecting member 405 passing through the bottom of the elastic sleeve 305. With the above structure, the contact area between the movable plate 401 and the piston member 402 can be increased, so that the elastic sleeve 305 acts on the piston member 402 stably through the movable plate 401.

[0046] Specifically, the elastic sleeve 305 is in a barrel shape. The lower surface of the upper plate body 403 is in contact with the inner side of the lower bottom of the elastic sleeve 305, and the upper surface of the lower plate body 404 is in contact with the outer side of the lower bottom of the elastic sleeve 305.

[0047] Specifically, the lower plate body 404 and the connecting member 405 can be integrally formed.

[0048] In some embodiments, as Figures 2 to 5 shown, the movable assembly 4 further includes a pin 406. The two ends of the pin 406 respectively abut against the movable plate 401 and the piston member 402, so that the movable plate 401 acts on the piston member 402 through the pin 406. The above structural design is reasonable and the layout is compact.

[0049] Specifically, the movable assembly 4 may further include a sealing ring sleeved on the pin 406 to prevent the gas in the bottle body 302 from flowing to the movable plate 401 through the movable gap of the pin 406, that is, to prevent the gas from pressing on the movable plate 401.

[0050] Specifically, contact planes may be formed at both the upper and lower ends of the pin 406, so as to act on the movable plate 401 and the piston member 402 stably.

[0051] In some embodiments, as Figure 1 shown, the beverage preparation device further includes a pressure relief valve 5. The pressure relief valve 5 is respectively communicated with the solution bottle 1 and the water tank 2. The water tank 2 is provided with a ventilation hole. The pressure relief valve 5 is used to discharge the gas in the solution bottle 1 into the water tank 2 when the air pressure in the solution bottle 1 exceeds the second preset threshold. By providing the pressure relief valve 5, the pressure value in the solution bottle 1 can be kept within a safe range, which not only ensures that more gas is filled, but also can be relieved by the pressure relief valve 5 in time when too much gas is filled.

[0052] Specifically, the second preset threshold may be 0.6 MPa, that is, when the air pressure in the solution bottle 1 exceeds 0.6 MPa, the gas in the solution bottle 1 can be discharged into the water tank 2 through the pressure relief valve 5.

[0053] In some embodiments, as Figure 1As shown, the water supply device further includes a second pump body 6 connected to the solution bottle 1. The second pump body 6 is used to pump the water in the water tank 2 into the solution bottle 1. The control device is electrically connected to the second pump body 6 to control the opening and closing of the second pump body 6. In this way, the amount of water pumped from the water tank 2 into the solution bottle 1 by the second pump body 6 can be accurately controlled.

[0054] In some embodiments, as Figure 1 shown, a first one-way valve 7 and a second one-way valve 13 are provided on the water pipeline connecting the second pump body 6 and the solution bottle 1. The first one-way valve 7 is located downstream of the second one-way valve 13. The function of the first one-way valve 7 is to communicate with the external air, which is beneficial for the second pump body 6 to pump the water in the cooler 12 into the solution bottle 1, and it is also used to prevent the intake pressure in the solution bottle 1 from being too high, resulting in the liquid in the solution bottle 1 overflowing. By setting the second one-way valve 13, the water flowing into the solution bottle 1 can be prevented from flowing back into the water tank 2.

[0055] In some embodiments, as Figure 1 shown, the beverage preparation device further includes a third pump body 8 and a cup body 9. The third pump body 8 is used to pump the liquid in the solution bottle 1 into the cup body 9. A solenoid valve 10 is provided on the water pipeline connecting the third pump body 8 and the solution bottle 1. The solenoid valve 10 is electrically connected to the control device to achieve automatic liquid discharge, which is convenient for users to use.

[0056] Specifically, when it is necessary to pump the liquid in the solution bottle 1 into the cup body 9, the control device can send control commands to the solenoid valve 10 and the third pump body 8 to open them, so as to automatically pump out the liquid in the solution bottle 1.

[0057] The above embodiments are only exemplary embodiments of the present invention and are not used to limit the present invention. Those skilled in the art can make various modifications or equivalent replacements to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present invention.

Claims

1. A beverage preparation device, characterized in that, Comprising: A solution bottle (1); A water supply device, which includes a water tank (2) for supplying water to the solution bottle (1); A gas supply device (3), which includes a first pump body (301) and a gas cylinder assembly. The first pump body (301) is communicated with the water tank (2). The gas cylinder assembly includes a cylinder body (302) and a switch assembly provided at the bottle mouth of the cylinder body (302). The switch assembly includes a hydraulic chamber (304) and a movable assembly (4) that can open or close the exhaust port (303) of the cylinder body (302) under the pressure action in the hydraulic chamber (304). Wherein, the hydraulic chamber (304) is communicated with the first pump body (301), and the exhaust port (303) of the cylinder body (302) is communicated with the solution bottle (1); A control device, which is electrically connected to the first pump body (301). The control device is configured to send a first control instruction to the first pump body (301) to pump the water in the water tank (2) into the hydraulic chamber (304), so that when the pressure exerted by the hydraulic chamber (304) on the movable assembly (4) exceeds a first preset threshold, the exhaust port (303) of the cylinder body (302) is opened to allow the gas in the cylinder body (302) to flow to the solution bottle (1).

2. The beverage preparation device according to claim 1, characterized in that, The control device is further configured to send a second control instruction to the first pump body (301) to make it close. After the first pump body (301) is closed, the liquid in the hydraulic chamber (304) flows back into the water tank (2) through the first pump body (301) under the pressure action, so as to release the pressure exerted by the hydraulic chamber (304) on the movable assembly (4) and close the exhaust port (303) of the cylinder body (302).

3. The beverage preparation device according to claim 1, characterized in that, The switch assembly includes an elastic sleeve (305) and an upper cover (306). The upper end of the elastic sleeve (305) is open, and the upper cover (306) is covered on the upper opening of the elastic sleeve (305), and the upper cover (306) and the elastic sleeve (305) enclose to form the hydraulic chamber (304).

4. The beverage preparation device according to claim 3, characterized in that, The movable assembly (4) includes a movable plate (401) provided at the bottom of the elastic sleeve (305) and a piston member (402) abutted against the movable plate (401). The piston member (402) is used to block or release the exhaust port (303). After the hydraulic chamber (304) is filled with water, the elastic sleeve (305) expands to drive the movable plate (401) to press against the piston member (402), so that the piston member (402) moves to open the exhaust port (303).

5. The beverage preparation device according to claim 4, characterized in that, The movable plate (401) includes an upper plate body (403) and a lower plate body (404). The upper plate body (403) is provided in the hydraulic chamber (304) and located on the inner bottom of the elastic sleeve (305), and the lower plate body (404) is provided outside the hydraulic chamber (304) and located on the outer bottom of the elastic sleeve (305). The upper plate body (403) and the lower plate body (404) are connected by a connecting member (405) passing through the bottom of the elastic sleeve (305).

6. The beverage preparation device according to claim 4, characterized in that The movable component (4) further includes a bolt (406), and two ends of the bolt (406) respectively abut against the movable plate (401) and the piston member (402), so that the movable plate (401) acts on the piston member (402) through the bolt (406).

7. The beverage preparation device according to claim 1, characterized in that, The beverage preparation device further includes a pressure relief valve (5), the pressure relief valve (5) is respectively communicated with the solution bottle (1) and the water tank (2), a ventilation hole is provided on the water tank (2), and the pressure relief valve (5) is used for discharging the gas in the solution bottle (1) into the water tank (2) when the air pressure in the solution bottle (1) exceeds a second preset threshold value.

8. The beverage preparation device according to claim 1, wherein, The water supply device further includes a second pump body (6) communicated with the solution bottle (1), the second pump body (6) is used for pumping the water in the water tank (2) into the solution bottle (1), and the control device is electrically connected to the second pump body (6) to control the opening and closing of the second pump body (6).

9. The beverage preparation device according to claim 8, characterized in that, A first one-way valve (7) and a second one-way valve (13) are arranged on the water pipeline where the second pump body (6) is communicated with the solution bottle (1), and the first one-way valve (7) is located downstream of the second one-way valve (13).

10. The beverage preparation device according to claim 1 or 9, characterized in that, The beverage preparation device further includes a third pump body (8) and a cup body (9), the third pump body (8) is used for pumping the liquid in the solution bottle (1) into the cup body (9), an electromagnetic valve (10) is arranged on the water pipeline where the third pump body (8) is communicated with the solution bottle (1), and the electromagnetic valve (10) is electrically connected to the control device.

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