Bubble water machine

Abstract

The utility model discloses a sparkling water machine, belongs to the technical field of life electric appliances, and solves the problem that carbon dioxide in sparkling water is additionally dissipated due to long pressure relief time. According to the technical scheme, the composite rotary valve device comprises a rotary valve body, a drainage channel, a pressure relief channel and a switch assembly, the drainage channel, the pressure relief channel and the switch assembly are arranged in the rotary valve body, the drainage channel is communicated with a gas mixing cavity, and the pressure relief channel is communicated with the gas mixing cavity and the atmosphere. The switch assembly controls the pressure relief channel to be in a disconnected state or a first connected state or a second connected state. When the pressure relief channel is in the disconnected state or the first connected state, the switch assembly controls the drainage channel to be disconnected; when the pressure relief channel is in the second communication state, the drainage channel is controlled to be disconnected when the air pressure in the pressure relief channel is larger than the threshold value, and the drainage channel is communicated when the air pressure in the pressure relief channel is smaller than or equal to the threshold value. According to the utility model, the total duration of the bubble water preparation process is reduced, and the taste of the prepared bubble water is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliances, in particular to a bubble water machine. Background Art

[0002] Carbonated flavored beverages are more popular among young consumers, and the market for sparkling water machines is gradually expanding. Single sparkling water does not taste good, so it is often mixed with flavoring agents such as fruit pulp and syrup to improve the taste. The common seasoning method in the market is to manually add flavoring agents to the sparkling water after the sparkling water is prepared to achieve seasoning.

[0003] The prior art CN220713664U provides a bubble water machine, including a body and a mixing chamber, a discharge assembly, a seasoning box, and a seasoning chamber arranged on the body. The mixing chamber is used to mix and form bubble water, the seasoning box is used to store seasonings and is connected to the seasoning chamber, the discharge assembly includes a drainage pipeline and an exhaust pipeline, the drainage pipeline connects the mixing chamber with the seasoning chamber, the drainage pipeline includes a drainage valve, the exhaust pipeline is connected to the seasoning box and squeezes the seasoning into the seasoning chamber by air pressure, and the exhaust pipeline includes a rotary valve assembly, the rotary valve assembly controls the on-off of the exhaust pipeline and is transmission-connected to the drainage valve to simultaneously control the on-off of the drainage pipeline. The discharge assembly in the above-mentioned prior art includes a drain pipeline and an exhaust pipeline, and the exhaust pipeline is connected to the seasoning box. When it is necessary to add seasoning, the exhaust pipeline inflates the seasoning box, and the seasoning is squeezed into the seasoning cavity by increasing the air pressure inside the seasoning box, thereby ensuring that the process of adding seasoning is stable and reliable, and effectively avoiding the situation of insufficient negative pressure absorption; in addition, the rotary valve assembly is transmission-connected with the drain valve, and the rotary valve assembly can simultaneously control the on-off of the exhaust pipeline and the drain pipeline. When the user needs to add seasoning, the exhaust pipeline and the drain pipeline are controlled to be connected at the same time by the rotary valve assembly to achieve mixing of bubble water and seasoning; when the user does not need to add seasoning, only the drain pipeline is connected by the rotary valve assembly, so that the original bubble water can be provided to the user; after use, the rotary valve assembly can simultaneously close the exhaust pipeline and the drain pipeline; the bubble water machine can produce bubble water of different flavors and realize switching of different functions through the adjustment of the rotary valve assembly, which provides convenience for the user's use, and can also meet the different needs of customers and improve the scope of application.

[0004] However, the above-mentioned prior art has the following problems: the state of the drainage channel is determined during pressure release, and the time of pressure release is determined. In order to meet the batch requirements, the time of pressure release is set long enough, resulting in a long preparation process and additional escape of carbon dioxide in the prepared sparkling water, affecting the taste. Utility Model Content

[0005] The utility model aims to solve the technical problem existing in the prior art, that is, the problem that the carbon dioxide in the bubble water escapes extra due to the long pressure relief time. In view of this, the utility model provides a bubble water machine that can adaptively switch to the drainage state in the pressure relief state without setting a fixed pressure relief time, which can shorten the time interval from pressure relief to drainage, reduce the total time of the bubble water preparation process, and ensure the taste of the prepared bubble water.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bubble water machine, including a machine body and a composite rotary valve device, the composite rotary valve device including a rotary valve body and a drainage channel, a pressure relief channel and a switch assembly arranged in the rotary valve body, the drainage channel is connected to a gas mixing chamber to discharge the bubble water in the gas mixing chamber, the pressure relief channel is connected to the gas mixing chamber and the atmosphere, the switch assembly controls the pressure relief channel to be in a disconnected state or a first connected state or a second connected state; when the pressure relief channel is in a disconnected state or a first connected state, the switch assembly controls the drainage channel to be disconnected; when the pressure relief channel is in the second connected state, the drainage channel is controlled to be disconnected when the air pressure in the pressure relief channel is greater than a threshold value, and the drainage channel is connected when the air pressure in the pressure relief channel is less than or equal to the threshold value.

[0007] After adopting the above technical scheme, the utility model has the following advantages: the switch component is used to control the connection or disconnection of the pressure relief channel, and the connection or disconnection of the drainage channel is controlled at the same time; when the pressure relief valve core avoids the water channel valve core, the air pressure in the pressure relief channel can be used to control the disconnection of the drainage channel, and the connection of the drainage channel is controlled when the air pressure in the pressure relief channel is less than or equal to the threshold value. Compared with the method of opening the drainage channel to discharge the bubble water after the gas mixing chamber completes the pressure relief, the method of realizing adaptive pressure relief and drainage through the pressure change of the pressure relief channel can make the gas mixing chamber automatically switch from the pressure relief state to the drainage state. Not only can the opening time of the drainage channel be advanced, shortening the total duration of the bubble water preparation process, but also the opening time of the drainage channel can be freely adjusted according to demand without setting a fixed pressure relief duration, effectively reducing the amount of carbon dioxide escape in the bubble water, thereby ensuring the taste of the prepared bubble water and improving the user experience.

[0008] Furthermore, the switch assembly includes a waterway valve core and a pressure relief valve core. The waterway valve core moves axially in the rotary valve body to control the connection or disconnection of the drainage channel, and the waterway valve core maintains a tendency to control the connection of the drainage channel. The pressure relief valve core rotates in the rotary valve body to control the pressure relief channel to be in a disconnected state or a first connected state or a second connected state; when the pressure relief channel is in a disconnected state or a first connected state, the pressure relief valve core acts on the waterway valve core to control the disconnection of the drainage channel; when the pressure relief channel is in the second connected state, the pressure relief valve core avoids the waterway valve core, so that the waterway valve core can control the connection of the drainage channel. With the above technical solution, the pressure relief valve core is used to resist or avoid the waterway piston to control the disconnection or connection of the drainage channel, and the transmission connection between the transmission cam and the drainage valve core is cancelled, and the drainage port seal will no longer fail due to the wear of the transmission cam.

[0009] Furthermore, a through hole is provided on the side wall of the pressure relief valve core, and when the through hole is aligned with the pressure relief channel, the pressure relief channel is connected, or when the through hole is misaligned with the pressure relief channel, the pressure relief channel is disconnected; a pressure chamber is formed between the waterway valve core and the pressure relief valve core, and the pressure chamber is connected with the through hole. When the pressure relief channel is in the second connected state, the fluid pressure in the pressure relief channel acts on the waterway valve core through the pressure chamber. With the above technical solution, the pressure chamber is connected with the through hole instead of being directly connected with the pressure relief channel, which is conducive to achieving reliable sealing between the pressure relief valve core and the rotary valve body, and is convenient for disconnecting the pressure chamber from the pressure relief channel when the through hole is misaligned with the pressure relief channel, ensuring that the influence of air pressure on the waterway valve core is eliminated when the pressure relief channel is in the disconnected state.

[0010] Furthermore, the through hole forms a first opening and a second opening on the side wall of the pressure relief valve core, and the first opening and the second opening are misaligned with the pressure relief channel, so that the pressure relief channel is in a disconnected state; the pressure relief channel is divided into an upstream section and a downstream section relative to the through hole, and the first opening is aligned with the outlet of the upstream section of the pressure relief channel and the second opening is aligned with the inlet of the downstream section of the pressure relief channel, so that the pressure relief channel is in a first connected state, and the second opening is aligned with the outlet of the upstream section of the pressure relief channel and the first opening is aligned with the inlet of the downstream section of the pressure relief channel, so that the pressure relief channel is in a second connected state. With the above technical solution, the pressure relief valve core can be rotated within a range of 180° to realize the switching of the pressure relief channel in three states, and the structure is simple and reliable, and it occupies a small space.

[0011] Furthermore, the pressure relief valve core is provided with a plug-in hole, and the waterway valve core is provided with a plug-in shaft inserted into the plug-in hole, the plug-in hole and the plug-in shaft are sealed and matched, and a pressure chamber is formed in the plug-in hole. With the above technical solution, the plug-in hole and the plug-in shaft are sealed and matched, and a guide effect can be provided for the axial movement of the waterway valve core, which is conducive to improving the stability of the waterway valve core during axial movement.

[0012] Furthermore, when the pressure relief passage is in the second communication state, the plug shaft moves along with the water path valve core and inserts into the pressure relief passage to reduce the flux of the pressure relief passage. With the above technical solution, the plug shaft inserts into the pressure relief passage to reduce the flux of the pressure relief passage, which can reduce the pressure relief speed of the pressure relief passage, effectively avoid the continuous rapid pressure relief of the gas mixing chamber, ensure that the bubble water can be discharged at a relatively fast speed under the action of the air pressure in the gas mixing chamber, and can also shorten the total duration of the preparation process.

[0013] Furthermore, a first curved surface is provided on the end face of the pressure relief valve core facing the water path valve core. The first curved surface extends along the circumferential direction of the pressure relief valve core and simultaneously extends along the axial direction of the pressure relief valve core towards the water path valve core, so that a first front end far from the pressure relief passage and a first rear end close to the pressure relief passage are formed on the first curved surface; a second curved surface is provided on the end face of the water path valve core facing the pressure relief valve core. The second curved surface extends along the circumferential direction of the water path valve core and simultaneously extends along the axial direction of the water path valve core towards the pressure relief valve core, so that a second front end far from the drain passage and a second rear end close to the drain passage are formed on the second curved surface; when the pressure relief passage is in the disconnected state or the first communication state, the first front end abuts against the second front end to disconnect the drain passage of the water path valve core; when the pressure relief passage is in the second communication state, the first front end and the second rear end are axially opposite, and the first rear end and the second front end are axially opposite, so that an avoidance space is formed between the first curved surface and the second curved surface, and the water path valve core can control the drain passage to communicate. With the above technical solution, by designing the first curved surface and the second curved surface, the pressure relief valve core can play a part of the role of a cam during the rotation process. For example, when the first front end abuts against the second front end, it will not affect the automatic opening of the drain passage of the water path valve core at the same time. For example, when the first front end and the second rear end are axially opposite, and the first rear end and the second front end are axially opposite, the structure is simple but has multiple functions. In addition, the first curved surface and the second curved surface do not have to interact all the time, which can reduce wear and improve the service life.

[0014] Furthermore, an elastic member is provided on the water path valve core, and the elastic force of the elastic member causes the water path valve core to have a tendency to control the drain passage to communicate; alternatively, a first magnet is provided on the water path valve core, and a second magnet is provided on the rotary valve body. The first magnet and the second magnet are opposite in the same pole to form a repulsive force, so that the water path valve core has a tendency to control the drain passage to communicate. With the above technical solution, whether it is the elastic force of the elastic member or the repulsive force between the first magnet and the second magnet, both can well push the axial movement of the water path valve core, with low cost and long service life.

[0015] Furthermore, the body is provided with a seasoning component, which includes a seasoning box and a seasoning air pipe. The seasoning box is connected to the drainage channel, and the seasoning air pipe is connected to the seasoning box. The air source inflates the seasoning box through the seasoning air pipe so that the seasoning is added to the drainage channel from the seasoning box; the composite rotary valve device also includes an air path distribution valve and a drive mechanism; the air path distribution valve is used to control the connection or disconnection between the seasoning air pipe and the air source; the drive mechanism has a first output end and a second output end, the first output end is connected to the switch component, which is used to drive the switch component to control the pressure relief channel to be in a disconnected state or a first connected state or a second connected state, and the second output end is connected to the air path distribution valve, which is used to drive the air path distribution valve to control the connection or disconnection of the seasoning air pipe. By adopting the above technical solution, the seasoning function is added, and the switch component and the air path distribution valve are synchronously driven by the drive mechanism, the seasoning automation can be realized in coordination with the drainage timing.

[0016] Furthermore, the air circuit distribution valve includes an air circuit valve body and an air circuit valve core; the air circuit valve body is provided with a seasoning air hole connecting the seasoning air pipe and the air pump, the air circuit valve core is transmission-connected to the second output end, and the air circuit valve core is provided with a connecting hole; the connecting hole is aligned with the seasoning air hole so that the seasoning air pipe is connected to the air source, and the connecting hole is misaligned with the seasoning air hole so that the seasoning air pipe is disconnected from the air source; when the pressure relief channel is in a disconnected state or a first connected state, the seasoning air pipe is disconnected from the air source; when the pressure relief channel is in a second connected state, before the drainage channel is connected, the seasoning air pipe is disconnected from the air source. The above technical solution is adopted to realize the state switching of the seasoning air pipe, which is simple and reliable, and ensures that flavoring agent will not be added when the sparkling water machine is not in a drainage state. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings:

[0018] Figure 1 This is a structural schematic diagram (partial) of a bubble water machine of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the composite rotary valve device in the utility model;

[0020] Figure 3 It is an exploded view (partial) of the composite rotary valve device in the utility model;

[0021] Figure 4 It is an exploded view of the gas path distribution valve in the utility model;

[0022] Figure 5 It is a cross-sectional view of the composite rotary valve device in the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the water circuit valve core of the utility model (I);

[0024] Figure 7Structural schematic diagram (II) of the waterway spool in the present utility model;

[0025] Figure 8 Structural schematic diagram (III) of the waterway spool in the present utility model;

[0026] Figure 9 Structural schematic diagram (IV) of the waterway spool in the present utility model;

[0027] Figure 10 Structural schematic diagram (I) of the pressure relief spool in the present utility model;

[0028] Figure 11 Structural schematic diagram (II) of the pressure relief spool in the present utility model;

[0029] Figure 12 Structural schematic diagram (III) of the pressure relief spool in the present utility model;

[0030] Figure 13 Structural schematic diagram (IV) of the pressure relief spool in the present utility model;

[0031] Figure 14 Schematic diagram of the air path distribution frame and air path valve body in the present utility model;

[0032] Figure 15 Cross-sectional view of the air path spool in the present utility model;

[0033] Figure 16 Cross-sectional view of the composite rotary valve device in the present utility model when in the water inlet position;

[0034] Figure 17 Cross-sectional view of the air path distribution valve in the present utility model (the composite rotary valve device is in the water inlet position);

[0035] Figure 18 Cross-sectional view of the composite rotary valve device in the present utility model when in the closed position;

[0036] Figure 19 Cross-sectional view of the air path distribution valve in the present utility model (the composite rotary valve device is in the closed position);

[0037] Figure 20 Cross-sectional view of the composite rotary valve device in the present utility model during the pressure relief stage;

[0038] Figure 21 Cross-sectional view of the air path distribution valve in the present utility model (the composite rotary valve device is in the pressure relief stage);

[0039] Figure 22 Cross-sectional view of the composite rotary valve device in the present utility model during the drainage stage;

[0040] Figure 23Cross-sectional view of the pneumatic circuit distribution valve in the present utility model (during the drainage stage of the composite rotary valve device);

[0041] Figure 24 Cross-sectional view of the composite rotary valve device in the present utility model when it is in the first flavoring gear;

[0042] Figure 25 Cross-sectional view of the pneumatic circuit distribution valve in the present utility model (the composite rotary valve device is in the first flavoring gear);

[0043] Figure 26 Cross-sectional view of the composite rotary valve device in the present utility model when it is in the second flavoring gear;

[0044] Figure 27 Cross-sectional view of the pneumatic circuit distribution valve in the present utility model (the composite rotary valve device is in the second flavoring gear). Detailed implementation manners

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0046] The terms "first", "second", etc. (if any) in the description and claims of the present utility model are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish a certain technical feature, it does not necessarily imply the existence of "first". It should be understood that in the present utility model, "including" and "having" and any of their variations are intended to cover non-exclusive inclusion. It should be understood that in the present utility model, "a plurality of" means two or more. "And / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, X and / or Y may represent: X exists alone, X and Y exist simultaneously, and Y exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after. "Including X, Y, and Z", "including X, Y, Z" means that all of X, Y, and Z are included, "including X, Y, or Z" means that any one of X, Y, and Z is included, and "including X, Y, and / or Z" means that any one or any two or all three of X, Y, and Z are included.

[0047] The technical solutions of the present utility model will be described in detail below with specific embodiments. These specific embodiments can be combined or replaced according to the actual situation. For the same or similar concepts or processes, they may not be repeated in some embodiments.

[0048] Such as Figures 1 to 15As shown in the figure, the present utility model provides a sparkling water machine, which includes a machine body and a composite rotary valve device 1. The composite rotary valve device 1 includes a rotary valve body 11 and a drainage channel 111, a pressure relief channel 112 and a switch assembly provided in the rotary valve body 11. The drainage channel 111 communicates with the gas mixing chamber 2 for discharging the sparkling water in the gas mixing chamber 2. The gas mixing chamber 2 can communicate with the drainage channel 111 through a first drain pipe 22. The pressure relief channel 112 communicates the gas mixing chamber 2 with the atmosphere and can release the pressure to the atmosphere when the gas mixing chamber 2 needs to be depressurized. The switch assembly controls the pressure relief channel 112 to be in a disconnected state, a first connected state or a second connected state. When the pressure relief channel is in the disconnected state or the first connected state, the switch assembly controls the drainage channel 111 to be disconnected. When the pressure relief channel is in the second connected state, when the air pressure in the pressure relief channel 112 is greater than the threshold value, the drainage channel 111 is controlled to be disconnected, and the drainage channel 111 is connected when the air pressure in the pressure relief channel 112 is less than or equal to the threshold value.

[0049] Specifically, a gas mixing chamber 2 is provided in the sparkling water machine for mixing water and carbon dioxide into sparkling water. When water enters the gas mixing chamber 2, the pressure relief channel 112 needs to be connected to the atmosphere to maintain the air pressure in the gas mixing chamber 2 consistent with the external atmospheric pressure. At the same time, the drainage channel 111 needs to be disconnected. At this time, the pressure relief channel 112 is in the first connected state. When the water inlet of the gas mixing chamber 2 is completed and carbon dioxide starts to be filled, both the pressure relief channel 112 and the drainage channel 111 need to be disconnected to form a high pressure in the gas mixing chamber 2, and mix water and carbon dioxide into sparkling water. At this time, the pressure relief channel 112 is in the disconnected state. When the sparkling water mixing is completed, the pressure relief channel 112 needs to be connected to the atmosphere first to release the high pressure in the gas mixing chamber 2 to prevent the sparkling water from spraying out, and then the drainage channel 111 is connected to drain the sparkling water in the gas mixing chamber 2. At this time, the pressure relief channel 112 is in the second connected state. In the present invention, when the pressure relief channel 112 is in the disconnected state, the switch assembly simultaneously controls the disconnection of both the pressure relief channel 112 and the drainage channel 111. When the pressure relief channel 112 is in the first connected state, the switch assembly controls the connection of the pressure relief channel 112 and the disconnection of the drainage channel 111. When the pressure relief channel 112 is in the second connected state, the switch assembly simultaneously controls the connection of both the pressure relief channel 112 and the drainage channel 111; at the same time, since the connected pressure relief channel 112 is used to release the high-pressure gas in the gas mixing chamber 2 at this time, the high pressure in the pressure relief channel 112 acts on the switch assembly to cause the drainage channel 111 to be disconnected; as the high-pressure gas in the gas mixing chamber 2 is released, the air pressure in the pressure relief channel 112 gradually decreases, and the acting force on the switch assembly also gradually decreases. When the air pressure in the pressure relief channel 112 drops to the threshold value and is further less than the threshold value, the acting force on the switch assembly becomes so small that it can no longer disconnect the drainage channel 111, so the drainage channel 111 is connected. Thus, the adaptive pressure relief and drainage process of automatically switching from the pressure relief state to the drainage state is completed. During specific implementation, the strain of the switch assembly to the air pressure can be set by determining the air pressure state when the sparkling water has the best taste.

[0050] The utility model utilizes a switch component to control the connection or disconnection of the pressure relief channel, and controls the connection or disconnection of the drainage channel at the same time. When the pressure relief valve core avoids the water channel valve core, the air pressure in the pressure relief channel can be used to control the disconnection of the drainage channel, and the connection of the drainage channel can be controlled when the air pressure in the pressure relief channel is less than or equal to a threshold value. Compared with the method of opening the drainage channel to discharge the bubble water after the gas mixing chamber completes the pressure relief, the method of realizing adaptive pressure relief and drainage through the pressure change of the pressure relief channel can make the gas mixing chamber automatically switch from the pressure relief state to the drainage state. Not only can the opening time of the drainage channel be advanced, shortening the total duration of the preparation process, but also the opening time of the drainage channel can be freely adjusted according to demand without setting a fixed pressure relief duration, effectively reducing the amount of carbon dioxide escape in the bubble water, thereby ensuring the taste of the prepared bubble water and improving the user experience.

[0051] In one embodiment, the switch assembly includes a water circuit valve core 31 and a pressure relief valve core 32; the water circuit valve core 31 moves axially in the rotary valve body 11, thereby controlling the connection or disconnection of the drainage channel 111, and the water circuit valve core 31 maintains a tendency to control the connection of the drainage channel 111; the pressure relief valve core 32 rotates in the rotary valve body 11, thereby controlling the pressure relief channel 112 to be in a disconnected state or a first connected state or a second connected state; in the disconnected state or the first connected state, the pressure relief valve core 32 presses against the water circuit valve core 31 to control the disconnection of the drainage channel 111; in the second connected state, the pressure relief valve core 32 avoids the water circuit valve core 31, so that the water circuit valve core 31 can control the connection of the drainage channel 111.

[0052] Further, in order to make the waterway valve core tend to control the connection of the drainage channel, an elastic member may be provided on the waterway valve core, and the elastic force of the elastic member makes the waterway valve core tend to control the connection of the drainage channel. Specifically, in order to make the waterway valve core 31 keep the state of opening the inlet of the drainage channel 111 and connecting the drainage channel 111 without external force, that is, the normal state of the waterway valve core 31 is the tendency to move away from the drainage channel 111. In one embodiment, the elastic member is a return spring 33 sleeved on the waterway valve core 31. When the waterway valve core 31 is not affected by other external forces, it is pushed by the return spring 33 to approach the pressure relief valve core 32. The present utility model does not exclude any other structural settings that can achieve this function. For example, a first magnet is provided at one end of the waterway valve core 31 close to the drainage channel 111, and a second magnet is provided on the rotary valve body. The first magnet and the second magnet are opposite in the same pole to form a repulsive force, and the waterway valve core is kept in the tendency to control the connection of the drainage channel by the repulsive force. Specifically, the waterway valve core 31 is inserted into the inside of the rotary valve body 11, and a waterway gasket 34 is provided at one end of the waterway valve core 31 extending into the drainage channel 111. When the waterway valve core 31 moves away from the pressure relief valve core 32 and blocks the inlet of the drainage channel 111, the drainage channel 111 is disconnected; when the waterway valve core 31 moves towards the pressure relief valve core 32 and opens the inlet of the drainage channel 111, the drainage channel 111 is connected; and when the waterway valve core 31 is not affected by any external force, the waterway valve core 31 uses the elastic force of the elastic force to keep the inlet of the drainage channel 111 open, so that the drainage channel 111 remains in a connected state. At the same time, the present utility model is provided with a limiting member to control the axial movement of the waterway valve core 31 in the rotary valve body 11 without rotation. The limiting member may be an axial protrusion 313 provided on the side wall of the waterway valve core 31 and an axial groove provided on the inner wall of the rotary valve body 11 adapted to the axial protrusion 313. The present utility model does not exclude any other limiting structures that can achieve this function, such as providing a groove on the side wall of the waterway valve core 31 and a protrusion on the inner wall of the rotary valve body 11, or setting the cross-section of the waterway valve core 31 and the cross-section of the inner wall of the rotary valve body 11 to be adapted non-circular shapes, etc.

[0053] To ensure sealing reliability, the pressure relief valve core 32 is also inserted into the rotary valve body 11 through the pressure relief seal 36 and is horizontally arranged in the middle of the pressure relief channel 112, dividing the pressure relief channel 112 into an upstream section 112A and a downstream section 112B. The pressure relief seal 36 is fixedly arranged on the inner wall of the rotary valve body 11 and is provided with an opening 361 adapted to the pressure relief channel 112. The pressure relief valve core 32 rotates in the rotary valve body 11 without axial movement, and the pressure relief channel 112 is placed in a disconnected state, a first connected state, or a second connected state by rotating. When the pressure relief channel 112 is in a disconnected state or a first connected state, the pressure relief valve core 32 presses against the water path valve core 31, pushing the water path valve core 31 toward the direction of the drainage channel 111, so that the water path valve core 31 blocks the entrance of the drainage channel 111 and thus disconnects the drainage channel 111; when the pressure relief channel 112 is in a second connected state, the pressure relief valve core 32 avoids the water path valve core 31, and the water path valve core 31 keeps the entrance of the drainage channel 111 open without being subjected to external force, so that the drainage channel 111 is connected.

[0054] More specifically, in one embodiment, a through hole 321 is provided on the side wall of the pressure relief valve core 32; when the through hole 321 is aligned with the pressure relief channel 112, the pressure relief channel 112 is connected; when the through hole 321 is misaligned with the pressure relief channel 112, the pressure relief channel 112 is disconnected; in order to allow the pressure of the pressure relief channel 112 to act on the water path valve core 31, a pressure chamber 324 is formed between the water path valve core 31 and the pressure relief valve core 32, and the pressure chamber 324 is connected to the through hole 321; when the pressure relief channel 112 is in the second connected state, the fluid pressure in the pressure relief channel 112 acts on the water path valve core 31 through the pressure chamber 324.

[0055] Further, in one embodiment, the through hole 321 forms a first opening 321A and a second opening 321B on the side wall of the pressure relief valve core 32; the first opening 321A and the second opening 321B are misaligned with the pressure relief channel 112, so that the pressure relief channel 112 is in a disconnected state; since the pressure relief channel is divided into an upstream section 112A and a downstream section 112B relative to the through hole, the upstream section 112A can be connected to the gas mixing chamber 2 through the pressure relief pipe 21, and the downstream section 112B can be connected to the waste gas mixing chamber 2 of the body. The water box is connected, so it can be distinguished that the first mouth 321A is aligned with the outlet of the upstream section 112A of the pressure relief channel 112 and the second mouth 321B is aligned with the inlet of the downstream section 112B of the pressure relief channel 112, so that the pressure relief channel 112 is in a first connected state; the second mouth 321B is aligned with the outlet of the upstream section 112A of the pressure relief channel 112 and the first mouth 321A is aligned with the inlet of the downstream section 112B of the pressure relief channel 112, so that the pressure relief channel 112 is in a second connected state.

[0056] When the through hole 321 is misaligned with the pressure relief passage 112, the upstream section 112A and the downstream section 112B are not connected, so the pressure relief passage 112 is disconnected; when the through hole 321 is aligned with the pressure relief passage 112, the upstream section 112A and the downstream section 112B are connected, so the pressure relief passage 112 is connected. In specific implementation, there are two ways to align the through hole 321 with the pressure relief passage 112, corresponding to the first connection state and the second connection state of the pressure relief passage 112 respectively. At this time, the pressure relief valve core 32 rotates 180° to make the pressure relief passage 112 reach the second connection state from the first connection state.

[0057] To realize the movement of the water path valve core 31 controlled by the air pressure in the pressure relief passage 112 in the second connection state, a pressure chamber for transmitting the air pressure is required, and the pressure chamber should be able to communicate with the pressure relief passage 112 and be sealed in other directions except the pressure relief passage 112. In one embodiment, in order to form the pressure chamber, the pressure relief valve core 32 is provided with a plugging hole 322, and the water path valve core 31 is provided with a plug shaft 311 inserted into the plugging hole 322; the plugging hole 322 and the plug shaft 311 are in sealing cooperation, and a pressure chamber 324 is formed in the plugging hole 322.

[0058] The present utility model does not exclude any other pressure chamber settings that can achieve this function. For example, if the outer peripheral surfaces of the water path valve core 31 and the pressure relief valve core 32 are both in sealing cooperation with the inner wall surface of the rotary valve body 11, a pressure chamber can be formed between one end of the water path valve core 31 facing the pressure relief valve core 32, one end of the closed end of the pressure relief valve core 32 facing the water path valve core 31, and the rotary valve body 11. And directly forming a pressure chamber between one end of the pressure relief valve core facing the water path valve core, one end of the water path valve core facing the pressure relief valve core, and the rotary valve body has a simple structure, can utilize the original sealing relationship between the pressure relief valve core and the rotary valve body, and between the water path valve core and the rotary valve body, reduce the use of seals, and is beneficial to simplify the structure. At the same time, in the second connection state, when the drainage passage 111 is opened, the plug shaft 311 moves inside the pressure relief valve core 32 in the direction close to the pressure relief passage 112 and is inserted into the pressure relief passage 112, so that the flux of the pressure relief passage 112 is reduced, which can avoid the rapid continuous drop of the air pressure and is more beneficial to ensuring a faster discharge speed of the sparkling water.

[0059] When the pressure relief passage is in the disconnected state or the first connected state, in order to enable the pressure relief valve core to act on the waterway valve core to control the disconnection of the drainage passage, in one embodiment, a first curved surface 323 is provided on the end surface of the pressure relief valve core 32 facing the waterway valve core 31, and a second curved surface 312 is provided on the end surface of the waterway valve core 31 facing the pressure relief valve core 32; the first curved surface 323 extends along the circumferential direction of the pressure relief valve core 32 and at the same time extends in the direction of the waterway valve core 31 along the axial direction of the pressure relief valve core 32, so that a first front end 323A away from the pressure relief passage 112 and a first rear end 323B close to the pressure relief passage 112 are formed on the first curved surface 323; the second curved surface 312 extends along the circumferential direction of the waterway valve core 31 and at the same time extends in the direction of the pressure relief valve core 32 along the axial direction of the waterway valve core 31, so that a second front end 312A away from the drainage passage 111 and a second rear end 312B close to the drainage passage 111 are formed on the second curved surface 312; when the pressure relief passage 112 is in the disconnected state or the first connected state, the first front end 323A abuts against the second front end 312A to disconnect the waterway valve core 31 from the drainage passage 111; when the pressure relief passage 112 is in the second connected state, the first front end 323A and the second rear end 312B are axially opposite, and the first rear end 323B and the second front end 312A are axially opposite, so that an avoidance space 300 is formed between the first curved surface 323 and the second curved surface 312. Refer to Figure 20 , the waterway valve core 31 can control the drainage passage 111 to be connected.

[0060] Specifically, when the first opening 321A of the through hole 321 is aligned with the inlet end of the pressure relief passage 112 and the second opening 321B is aligned with the outlet end of the pressure relief passage 112, and the pressure relief passage 112 is in the first connected state, the first front end 323A abuts against the second front end 312A, so that the distance between the pressure relief valve core 32 and the water passage valve core 31 reaches the maximum, and the water passage valve core 31 blocks the inlet of the drainage passage 111, thus disconnecting the drainage passage 111. The first front end 323A and the second front end 312A have a certain circumferential length. When the pressure relief valve core 32 is rotated at a small angle to misalign the through hole 321 with the pressure relief passage 112 and the pressure relief passage 112 is in the disconnected state, the first front end 323A and the second front end 312A remain in contact with each other. At this time, the water passage valve core 31 can still block the inlet of the drainage passage 111, so that the drainage passage 111 remains in the disconnected state. The pressure relief valve core 32 is continuously rotated by 180°, so that the second opening 321B is aligned with the outlet of the upstream section 112A of the pressure relief passage 112 and the first opening 321A is aligned with the inlet of the downstream section 112B of the pressure relief passage 112, and the pressure relief passage 112 is in the second connected state. At this time, the first curved surface 323 also rotates by 180°, so that the first front end 323A is axially opposite to the second rear end 312B, and the first rear end 323B is axially opposite to the second front end 312A. The first curved surface 323 and the second curved surface 312 are in mutual contact, and there is no force between the pressure relief valve core 32 and the water passage valve core 31, thus forming a relief space. Without external force, the water passage valve core 31 can use the elastic force of the elastic member or the repulsive force of the magnet to open the inlet of the drainage passage 111 to make the drainage passage 111 in a connected state.

[0061] In addition to being applied to common models, the utility model can also be used in models that can achieve flavoring. In one embodiment, the machine body is provided with a flavoring assembly. The flavoring assembly includes a flavoring box 7 and a flavoring air pipe 41. The flavoring box 7 is used for storing flavoring agents. The flavoring box 7 is communicated with the drainage passage. The flavoring air pipe 41 is communicated with the flavoring box 7. The air source fills the flavoring box 7 with gas through the flavoring air pipe 41, so that the flavoring agent is added from the flavoring box 7 to the drainage passage. Generally, an air pump 4 can be used as the air source. The composite rotary valve device 1 further includes an air path distribution valve and a driving mechanism; the air path distribution valve is used to control the connection or disconnection between the flavoring air pipe 41 and the air source; the driving mechanism has a first output end and a second output end. The first output end is connected to the switch assembly and is used to drive the switch assembly to control the pressure relief passage 112 to be in the disconnected state, the first connected state or the second connected state; the second output end of the driving mechanism is connected to the air path distribution valve and is used to drive the air path distribution valve to control the connection or disconnection of the flavoring air pipe 41.

[0062] For convenient flavoring, the sparkling water maker is also provided with a flavoring chamber 8, and the flavoring box 7 communicates with the flavoring chamber 8. When adding flavoring agents to the flavoring chamber 8, the drainage channel 111 also communicates with the flavoring chamber 8 to discharge sparkling water into the flavoring chamber 8. When the sparkling water made in the gas mixing chamber 2 needs to be flavored, the gas path distribution valve controls the communication of the flavoring gas pipe 41, and the high-pressure gas generated by the air pump 4 acts on the flavoring box 7 through the flavoring gas pipe 41 to squeeze the flavoring agent into the flavoring chamber 8; the sparkling water discharged through the drainage channel 111 enters the flavoring chamber 8 to be mixed with the flavoring agent, thus realizing the flavoring process of the sparkling water. The gas path distribution valve connects the flavoring gas pipe 41 and the air pump 4 and is used to control the connection or disconnection of the flavoring gas pipe 41.

[0063] One end of the pressure relief valve core 32 away from the water path valve core 31 sequentially passes through the pressure relief sealing ring 37, the valve body sealing ring 38 and the pressure relief valve core cover 39 to connect the first output end of the driving mechanism, and the pressure relief valve core cover 39 is fixed on the rotary valve body 11. The pneumatic mechanism controls the rotation of the pressure relief valve core 32 in the rotary valve body 11, so that the pressure relief channel 112 is in a disconnected state, a first connected state or a second connected state; the second output end of the driving mechanism is connected to the gas path distribution valve and is used to drive the gas path distribution valve to control the connection or disconnection of the flavoring gas pipe 41.

[0064] In one embodiment, the gas path distribution valve includes a gas path valve body 51 and a gas path valve core 52; a flavoring air hole 511 connecting the flavoring gas pipe 41 and the air pump 4 is provided on the gas path valve body 51, and a communication hole 521 adapted to the flavoring air hole 511 is provided on the gas path valve core 52 and is hermetically installed in the gas path valve body 51; when the communication hole 521 is aligned with the flavoring air hole 511, the flavoring gas pipe 41 communicates with the gas source, or when the communication hole 521 is misaligned with the flavoring air hole 511, the flavoring gas pipe 41 is disconnected from the gas source; one end of the communication hole 521 communicates with the air pump 4 through an air inlet pipe 55.

[0065] The gas path valve core 52 is hermetically installed in the gas path valve body 51 through a gas path gasket 53. The gas path gasket 53 is fixedly arranged in the gas path valve body 51 and has an opening 531 corresponding to the flavoring air hole 511. The driving mechanism is connected to the gas path valve core 52 to control the rotation of the gas path valve core 52 in the gas path valve body 51, so as to control the connection or disconnection of the flavoring gas pipe 41.

[0066] In one embodiment, when the pressure relief channel is in the disconnected state or the first connected state, the flavoring air pipe 41 is disconnected from the gas source; when the pressure relief channel is in the second connected state, before the drainage channel 111 is connected, the flavoring air pipe 41 is disconnected from the gas source. Specifically, when the pressure relief channel is in the disconnected state or the first connected state, the bubble water machine is in a state where the gas mixing chamber 2 is filled with water or mixed. At this time, no flavoring agent needs to be added, so the flavoring air pipe 41 is disconnected from the gas source. When the pressure relief channel is in the second connected state, after the drainage channel 111 is connected, the bubble water enters the flavoring chamber 8 through the drainage channel 111. At this time, if no flavoring is needed, the driving mechanism does not operate to keep the flavoring air pipe 41 disconnected. If flavoring is needed, the driving mechanism drives the air path valve core to rotate slightly by a certain angle, so that the connecting hole 521 rotates from a position offset from the flavoring air hole 511 to a position aligned with the flavoring air hole 511, thereby connecting the flavoring air pipe 41.

[0067] In order to increase the variety of seasonings, two seasoning boxes 7 can be set in the bubble water machine, and correspondingly, two seasoning air pipes 41 and two seasoning air holes 511 need to be set. Different seasonings are stored in the two seasoning boxes 7 respectively, and different seasonings can be added to the bubble water by connecting or disconnecting the seasoning air pipes 41 corresponding to the seasoning boxes 7. In a specific implementation, the position of the two seasoning air holes 511 must be set to ensure that the driving mechanism rotates slightly clockwise in the second connection state to connect one seasoning air pipe 41, and rotates slightly counterclockwise to connect the other seasoning air pipe 41. The present utility model does not exclude the provision of more seasoning boxes 7 and the same number of seasoning air pipes 41 and seasoning air holes 511 as the seasoning boxes 7 in the bubble water machine; when the same driving mechanism cannot be used to simultaneously control the connection or disconnection of the pressure relief channel 112 and multiple seasoning air pipes 41, it is not excluded to use multiple driving mechanisms to control multiple seasoning air pipes 41.

[0068] A drainage air pipe 42 is also provided in the bubble water machine, one end of which is connected to the gas mixing chamber 2, and the other end is connected to the drainage air hole 512 provided on the gas path valve body 51. When the drainage air hole 512 is misaligned with the connecting hole 521, the drainage air pipe 42 is disconnected; when the drainage air hole 512 is aligned with the connecting hole 521, the air pump 4 pushes the gas into the gas mixing chamber 2 through the drainage air hole 512 and the drainage air pipe 42. In the second connected state, the drainage air pipe 42 is connected at the same time, which can speed up the discharge of the bubble water in the gas mixing chamber 2, further reduce the total time of the preparation process and ensure that the taste of the prepared bubble water is better. The driving mechanism is also used to control the connection or disconnection of the drainage air pipe 42.

[0069] In the prior art, a transmission cam is in transmission connection with a drain valve core. Since the interaction force between the cam and the ejector rod is large, the cam is easily worn, resulting in the failure of the drain port seal. In the present utility model, the waterway valve core 31 is in transmission with the pressure relief valve core 32, and there will be no large interaction force existing for a long time, which is beneficial to reducing wear. To achieve transmission, in one embodiment, the drive mechanism includes a motor 56, a driving gear 57 and an output gear 58. The motor 56 drives the driving gear 57 to rotate as a power source; the driving gear 57 meshes with the output gear 58, thereby driving the output gear 58 to rotate. The output gear 58 has a rotating shaft 581. One end of the rotating shaft 581 is used as a first output end to connect to the pressure relief valve core 32, and the other end is used as a second output end to connect to the air path valve core 52. The rotation of the output gear 58 drives the pressure relief valve core 32 and the air path valve core 52 to rotate to the working positions required by the bubble water machine. The rotating shaft 581 can be designed as a hollow shaft, and the pressure relief valve core 32 and the air path valve core 52 are directly inserted into the rotating shaft 581 to achieve transmission connection. It can be understood that adding a transmission gear between the driving gear 57 and the output gear 58 belongs to a simple deformation and will not be elaborated here.

[0070] To reliably install and fix the air path distribution valve and the drive mechanism, the air path distribution valve further includes an air path distribution frame 5. The air path valve body 51 and the motor 56 are both arranged on one side of the air path distribution frame 5, and the driving gear 57 and the output gear 58 are both located on the other side of the air path distribution frame 5. The air path valve body 51 can be installed on the air path distribution frame 5 or directly integrally formed with the air path distribution frame 5, saving sealing parts. In addition, a cover plate 6 can be installed on the other side of the air path distribution frame 5, and the cover plate 6 covers the driving gear 57 and the output gear 58 for protection. The cover plate 6 can be fixedly connected to the rotary valve body 11, or the air path distribution frame 5, the cover plate 6 and the rotary valve body 11 can be fixed into one body, which is beneficial to ensuring the coaxiality of the pressure relief valve core 32 and the air path valve core 52.

[0071] To obtain the current angular position of the output gear 58, thereby judging the state of the pressure relief channel, a positioning magnet 59 corresponding to the position of the communication hole 521 can be embedded in the output gear 58. The composite rotary valve device 1 further includes a Hall element, and the working position of the bubble water machine can be determined by the Hall element sensing the position of the positioning magnet 59.

[0072] Next, take Figure 1Taking the specific embodiments shown as an example, the working gears of the sparkling water machine will be specifically described. Among them, the seasoning box 7 includes a first seasoning box 71 and a second seasoning box 72. The seasoning gas pipe 41 includes a first seasoning gas pipe 411 connected to the first seasoning box 71 and a second seasoning gas pipe 412 connected to the second seasoning box 72. The seasoning air holes 511 include a first seasoning air hole 5111 connected to the first seasoning gas pipe 411, a second seasoning air hole 5112 connected to the second seasoning gas pipe 412, and a drainage air hole 512 connected to the drainage gas pipe 42. The drainage air hole 512 is located between the first seasoning air hole 5111 and the second seasoning air hole 5112.

[0073] The working gears of the sparkling water machine can be divided into the following:

[0074] Water inlet gear: The default state of the compound rotary valve device is the water inlet gear. As Figure 16 shown, at this time, the pressure relief channel 112 is in the first communication state, and the drainage channel 111 is disconnected. As Figure 17 shown, the communication hole 521 is misaligned with the first seasoning air hole 5111, the second seasoning air hole 5112, and the drainage air hole 512, so that the first seasoning gas pipe 411, the second seasoning gas pipe 412, and the drainage gas pipe 42 are all disconnected. At this time, the pressure relief channel 112 is mainly used for ventilation, and the gas mixing chamber 2 is in communication with the atmosphere, so that the air pressure in the gas mixing chamber 2 is always the atmospheric pressure, allowing the water pump to smoothly pump water into the gas mixing chamber 2 and at the same time discharging part of the air in the gas mixing chamber 2. Figure 16 The arrow shown in

[0075] indicates that air is discharged as water enters the gas mixing chamber 2. Figure 18 Closed gear: When the water level sensor detects that a sufficient amount of water has entered the gas mixing chamber 2, as Figure 19 shown, the compound rotary valve device switches to the closed gear. At this time, the pressure relief channel 112 is in the disconnected state, the drainage channel 111 is disconnected, and the fluid in the gas mixing chamber 2 can only enter the upstream section 112A and the top of the drainage channel 111. At the same time, see Figure 19 Compared with Figure 17 this, the pressure relief valve core 32 and the gas path valve core 52 have rotated 90° clockwise compared to the water inlet gear at this time.

[0076] Pressure relief and drainage gear: When the carbon dioxide and water are fully mixed, the compound rotary valve device switches to the pressure relief and drainage gear. The pressure relief and drainage gear includes two stages. The first is the pressure relief stage: Figure 20 As shown, the pressure relief channel 112 is in the second connected state, and the high-pressure gas in the gas mixing chamber 2 is discharged through the pressure relief channel 112, so that there is high pressure in the pressure relief channel 112. Therefore, the air pressure in the pressure relief channel 112 pushes the water valve core 31 to the left through the pressure chamber 324, thereby disconnecting the drainage channel 111, thereby preventing the bubble water from spraying out under high pressure. Figure 21 As shown, although the connecting hole 521 is aligned with the drainage hole 512, the air pump does not work, so the gas in the gas mixing chamber 2 can only be discharged through the pressure relief channel 112. As the high-pressure gas is discharged through the pressure relief channel 112, the air pressure in the pressure relief channel 112 gradually decreases. When the air pressure drops to a threshold, the pressure relief and drainage gear enters the drainage stage: Figure 22 As shown, the air pressure in the gas mixing chamber 2 will no longer cause the bubble water to spray out, and at this time the air pressure in the pressure relief channel 112 is less than the thrust of the reset spring 33 on the water valve core 31, so that the water valve core 31 is moved away from the drainage channel 111 under the action of the reset spring 33, so that the drainage channel 111 is connected, and the bubble water can be smoothly discharged from the gas mixing chamber 2 through the drainage channel 111; at the same time, the water valve core 31 moves toward the direction of the pressure relief valve core 32, and the plug shaft 311 extends into the pressure relief channel 112, resulting in a decrease in the flux of the pressure relief channel 112, which can prevent the pressure in the gas mixing chamber 2 from continuing to drop rapidly, and is conducive to accelerating the speed of the bubble water being discharged from the gas mixing chamber 2. In addition, during the drainage stage, as the bubble water is continuously discharged, the pressure in the gas mixing chamber 2 continues to drop, and the gas circuit valve core 52 does not move, and the connecting hole 521 remains aligned with the drainage hole 512, as shown in FIG. Figure 23 As shown, the drainage air pipe 42 can be connected, and a certain air pressure is applied to the gas mixing chamber 2 through the air pump 4 to accelerate the discharge speed of the bubble water. Figure 21 and Figure 23 compared to Figure 17 At this time, the pressure relief valve core 32 and the air circuit valve core 52 have rotated 180° clockwise compared to the water inlet gear position.

[0077] Seasoning gear: During the drainage stage, if the first seasoning agent stored in the first seasoning box 71 needs to be added to the sparkling water, the composite rotary valve device is switched to the first seasoning gear, such as Figure 24 and Figure 25 As shown, at this time, the pressure relief channel 112 leaves the second connected state but is not enough to allow the water channel valve core 31 to close the drainage channel 111, and the drainage channel 111 remains connected. The connecting hole 521 is aligned with the first flavoring air hole 5111, so that the first flavoring air pipe 411 is connected, the second flavoring air pipe 412 and the drainage air pipe 42 are disconnected, and the air pump 4 works to squeeze the first flavoring agent into the flavoring chamber 8.Figure 25 Compared with Figure 23 , at this time, the pressure relief valve core 32 and the air path valve core 52 have rotated 45° clockwise compared with the pressure relief and drainage gear position. If it is necessary to add the second flavoring agent stored in the second flavoring box 72 to the sparkling water, then as Figure 26 and Figure 27 shown, the composite rotary valve device is switched to the second flavoring gear position: at this time, the pressure relief channel 112 leaves the second communication state but is still not enough to allow the water path valve core 31 to close the drainage channel 111, the drainage channel 111 remains connected, the communication hole 521 is aligned with the second flavoring air hole 5112, so that the second flavoring air pipe 412 is connected, and the first flavoring air pipe 411 and the drainage air pipe 42 are both disconnected. The air pump 4 works to squeeze the second flavoring agent into the flavoring cavity 8. Through Figure 27 Compared with Figure 23 , at this time, the pressure relief valve core 32 and the air path valve core 52 have rotated 45° counterclockwise compared with the pressure relief and drainage gear position. If it is necessary to add the first flavoring agent and the second flavoring agent to the sparkling water at the same time, the composite rotary valve device can be first switched to the first flavoring gear position to complete the process of squeezing in the first flavoring agent, and then switched to the second flavoring gear position to complete the process of squeezing in the second flavoring agent, or the first flavoring agent can be squeezed in first and then the second flavoring agent.

[0078] During the flavoring process, the sparkling water has been discharged through the drainage channel 111 and enters the flavoring cavity 8, so that the flavoring agent entering the flavoring cavity 8 is mixed into the sparkling water. After the flavoring is completed, the composite rotary valve device can be switched to the pressure relief and drainage gear position, or when it is not necessary to add flavoring agent to the sparkling water, directly skip the flavoring gear position and keep the composite rotary valve device in the pressure relief and drainage gear position all the time, and the sparkling water continues to be discharged. After all the sparkling water in the gas mixing cavity 2 is discharged, the composite rotary valve device returns to the water inlet gear position to restore the default state.

[0079] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. In addition to the above preferred embodiments, the present invention has other implementation manners. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bubble water machine, comprising a machine body and a composite rotary valve device, wherein the composite rotary valve device comprises a rotary valve body and a drainage channel, a pressure relief channel and a switch assembly arranged in the rotary valve body, wherein the drainage channel is connected to a gas mixing chamber to discharge bubble water in the gas mixing chamber, and the pressure relief channel is connected to the gas mixing chamber and the atmosphere, wherein: The switch assembly controls the pressure relief channel to be in a disconnected state, a first connected state, or a second connected state; When the pressure relief channel is in a disconnected state or a first connected state, the switch assembly controls the drainage channel to be disconnected; When the pressure relief channel is in the second connected state, the drainage channel is controlled to be disconnected when the air pressure in the pressure relief channel is greater than a threshold, and the drainage channel is connected when the air pressure in the pressure relief channel is less than or equal to the threshold.

2. The bubble water machine according to claim 1, characterized in that: The switch assembly includes a waterway valve core and a pressure relief valve core. The waterway valve core moves axially in the rotary valve body to control the connection or disconnection of the drainage channel, and the waterway valve core maintains a tendency to control the connection of the drainage channel. The pressure relief valve core rotates in the rotary valve body to control the pressure relief channel to be in a disconnected state, a first connected state, or a second connected state. When the pressure relief channel is in a disconnected state or a first connected state, the pressure relief valve core acts on the waterway valve core to control the drainage channel to be disconnected; When the pressure relief channel is in the second connected state, the pressure relief valve core avoids the waterway valve core, so that the waterway valve core can control the connection of the drainage channel.

3. The bubble water machine according to claim 2, characterized in that: A through hole is provided on the side wall of the pressure relief valve core, and when the through hole is aligned with the pressure relief channel, the pressure relief channel is connected, or when the through hole is misaligned with the pressure relief channel, the pressure relief channel is disconnected; A pressure chamber is formed between the waterway valve core and the pressure relief valve core, and the pressure chamber is connected to the through hole. When the pressure relief channel is in the second connected state, the fluid pressure in the pressure relief channel acts on the waterway valve core through the pressure chamber.

4. The bubble water machine according to claim 3, characterized in that: The through hole forms a first opening and a second opening on the side wall of the pressure relief valve core, and the first opening, the second opening and the pressure relief channel are misaligned, so that the pressure relief channel is in a disconnected state; The pressure relief channel is divided into an upstream section and a downstream section relative to the through hole, the first mouth is aligned with the outlet of the upstream section of the pressure relief channel and the second mouth is aligned with the inlet of the downstream section of the pressure relief channel, so that the pressure relief channel is in a first connected state, the second mouth is aligned with the outlet of the upstream section of the pressure relief channel and the first mouth is aligned with the inlet of the downstream section of the pressure relief channel, so that the pressure relief channel is in a second connected state.

5. The bubble water machine according to claim 2, characterized in that: The pressure relief valve core is provided with a plug-in hole, and the waterway valve core is provided with a plug-in shaft inserted into the plug-in hole. The plug-in hole and the plug-in shaft are sealed and matched, and a pressure chamber is formed in the plug-in hole.

6. The bubble water machine according to claim 5, characterized in that: When the pressure relief channel is in the second communication state, the insertion shaft moves along with the waterway valve core and is inserted into the pressure relief channel to reduce the flux of the pressure relief channel.

7. The bubble water machine according to claim 2, characterized in that: The end surface of the pressure relief valve core facing the waterway valve core is provided with a first curved surface, the first curved surface extends along the circumferential direction of the pressure relief valve core and at the same time extends along the axial direction of the pressure relief valve core toward the waterway valve core, so that a first front end away from the pressure relief channel and a first rear end close to the pressure relief channel are formed on the first curved surface; A second curved surface is provided on the end surface of the waterway valve core facing the pressure relief valve core, and the second curved surface extends along the circumferential direction of the waterway valve core and simultaneously extends along the axial direction of the waterway valve core toward the pressure relief valve core, so that a second front end away from the drainage channel and a second rear end close to the drainage channel are formed on the second curved surface; When the pressure relief channel is in a disconnected state or a first connected state, the first front end abuts against the second front end, so that the waterway valve core disconnects the drainage channel; When the pressure relief channel is in the second connected state, the first front end is axially opposite to the second rear end, and the first rear end is axially opposite to the second front end, so that an avoidance space is formed between the first curved surface and the second curved surface, and the water valve core can control the connection of the drainage channel.

8. The bubble water machine according to claim 2, characterized in that: The waterway valve core is provided with an elastic member, and the elastic force of the elastic member enables the waterway valve core to maintain a tendency to control the connection of the drainage channel; Alternatively, a first magnet is provided on the waterway valve core, and a second magnet is provided on the rotary valve body. The first magnet and the second magnet have the same poles facing each other to form a repulsive force, so that the waterway valve core maintains a tendency to control the connection of the drainage channel.

9. The bubble water machine according to claim 1, characterized in that: The body is provided with a seasoning component, which includes a seasoning box and a seasoning air pipe, the seasoning box is connected to the drainage channel, the seasoning air pipe is connected to the seasoning box, and the air source inflates the seasoning box through the seasoning air pipe so that the seasoning is added from the seasoning box to the drainage channel; The composite rotary valve device also includes a gas path distribution valve and a driving mechanism; The gas distribution valve is used to control the connection or disconnection between the flavoring gas pipe and the gas source; The driving mechanism has a first output end and a second output end. The first output end is connected to the switch assembly for driving the switch assembly to control the pressure relief channel to be in a disconnected state, a first connected state, or a second connected state. The second output end is connected to the air path distribution valve for driving the air path distribution valve to control the connection or disconnection of the seasoning air pipe.

10. The sparkling water machine according to claim 9, characterized in that: The gas circuit distribution valve comprises a gas circuit valve body and a gas circuit valve core; The gas circuit valve body is provided with a seasoning air hole connected to the seasoning air pipe and the air pump, the gas circuit valve core is transmission-connected to the second output end, and the gas circuit valve core is provided with a communication hole; The connecting hole is aligned with the seasoning air hole so that the seasoning air pipe is connected to the air source, and the connecting hole is misaligned with the seasoning air hole so that the seasoning air pipe is disconnected from the air source; When the pressure relief channel is in a disconnected state or a first connected state, the flavoring air pipe is disconnected from the air source; When the pressure relief passage is in the second connected state and before the drainage passage is connected, the flavoring air pipe is disconnected from the air source.

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