Gas-liquid separation device and water purification and coffee integrated machine comprising same

Abstract

The utility model provides a kind of gas-liquid separation device and the water purifying coffee integrated machine comprising it, for discharging gas in bypass pipe of venturi tube, bypass pipe is communicated with the water outlet of water receiving box, gas-liquid separation device at least part extends into water outlet, still include: first separation part, first separation part is helical structure, first separation part is set at the axis of gas-liquid separation device, the first end of the shell of gas-liquid separation device has water inlet, the second end of the shell of gas-liquid separation device has water outlet, the first end of first separation part is connected with the first end of the shell of gas-liquid separation device and is staggered with water inlet setting, the second end of first separation part is connected with the second end of the shell of gas-liquid separation device and is staggered with water outlet setting;Second separation part, second separation part is set on the inner wall of the shell of gas-liquid separation device, second separation part is helical structure and is spaced apart with first separation part, the pitch of first separation part is less than the pitch of second separation part.

Description

Technical Field

[0001] This utility model specifically relates to a gas-liquid separation device and a water purification and coffee machine incorporating the same. Background Technology

[0002] Water dispensers and coffee machines have water collection trays to temporarily hold spilled water or wastewater from the coffee machine's self-cleaning process. Currently, most wastewater in these trays needs to be manually emptied or drained using a pump. For water purifier-coffee combos, both the water purifier and the coffee machine's self-cleaning process generate wastewater that needs to be drained. To avoid reusing the pump, a Venturi jet drainage device can be used to drain the wastewater from the collection tray simultaneously with the water purifier's wastewater discharge.

[0003] In existing technology, a Venturi tube jet inlet is typically connected to the wastewater pipe, and a bypass pipe of the Venturi tube is connected to the coffee machine's wastewater collection box. When wastewater from the water purifier passes through the Venturi tube, a negative pressure is created, diverting the wastewater from the coffee machine's collection box and emptying it. However, after the wastewater is drained, the water purifier continues operating. Since the collection box contains only air, the bypass pipe of the Venturi tube draws air into the Venturi tube. This air mixes with the jet wastewater at the throat of the Venturi tube, generating significant noise and resulting in a poor user experience. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect in the prior art where air is injected into the Venturi tube after the sewage in the water receiving box is emptied, resulting in a large noise, and to provide a gas-liquid separation device and a water purification and coffee machine including the same.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A gas-liquid separation device is provided, wherein the gas-liquid separation device is used to discharge gas in a bypass pipe of a venturi tube, the bypass pipe is connected to the drain outlet of a water receiving box, the gas-liquid separation device extends at least partially into the drain outlet, the axis of the gas-liquid separation device coincides with the axis of the drain outlet, and the gas-liquid separation device further includes:

[0007] The first separation section has a spiral structure and is located on the axis of the gas-liquid separation device. The first end of the outer shell of the gas-liquid separation device has a water inlet, and the second end of the outer shell of the gas-liquid separation device has a water outlet. The first end of the first separation section is connected to the first end of the outer shell of the gas-liquid separation device and is offset from the water inlet. The second end of the first separation section is connected to the second end of the outer shell of the gas-liquid separation device and is offset from the water outlet.

[0008] The second separation section is disposed on the inner wall of the outer shell of the gas-liquid separation device. The second separation section has a spiral structure and is spaced apart from the first separation section. The pitch of the first separation section is smaller than the pitch of the second separation section.

[0009] In this design, a first separation section and a second separation section with different pitches are configured. Utilizing the water flow adhesion effect, water flows through the second separation section into the drain outlet and a bypass pipe connected to the drain outlet, thus effectively removing wastewater. Simultaneously, air in the wastewater is separated from the wastewater flowing into the second separation section upon entering the gas-liquid separator. Air is then guided by the first separation section and discharged from the gas-liquid separator in a direction away from the bypass pipe, preventing air from being drawn into the Venturi tube under negative pressure and generating noise. When the gas-liquid separator is used to eliminate noise, wastewater can be continuously discharged without sealing the drain outlet or resetting a sealed drain outlet.

[0010] Preferably, the gas-liquid separation device further includes an exhaust section, the first end of which is connected to the first end of the first separation section, and the second end of which extends away from the drain outlet along the depth direction of the water receiving box.

[0011] In this solution, the above-mentioned setup allows for the effective discharge of excess air from the water collection box via the exhaust section, preventing air from being drawn back into the bypass pipe.

[0012] Preferably, the first end of the exhaust section extends from the first end of the housing of the gas-liquid separator into the housing of the gas-liquid separator, and the exhaust section has a cylindrical structure.

[0013] In this solution, the efficiency of air capture is improved by extending the exhaust section through the above-mentioned settings.

[0014] Preferably, the venting part has a vent hole that extends through the water receiving box along its depth direction, the first end of the first separating part extends into the vent hole, the first end of the first separating part is provided with an external thread, the vent hole is provided with an internal thread, and the first end of the first separating part is screwed into the vent hole.

[0015] In this solution, the above-mentioned arrangement enables the first end of the first separation part, the exhaust part, and the first end of the outer casing to be connected to form a whole, thereby improving the structural stability of the first end of the first separation part and the exhaust part.

[0016] Preferably, the first end of the housing of the gas-liquid separator is provided with a first fixing part, the second end of the housing of the gas-liquid separator is provided with a second fixing part, the first end of the exhaust part is connected to the first fixing part and extends into the housing of the gas-liquid separator from the first fixing part, the water inlet is provided on the first fixing part and located on the outer periphery of the exhaust part, the second end of the first separator is connected to the second fixing part, and the water outlet is provided on the second fixing part and located on the outer periphery of the second end of the first separator.

[0017] In this solution, the inlet and outlet correspond to the areas spaced apart between the first and second separation sections, in order to avoid structural interference between the inlet and outlet and the first separation section.

[0018] Preferably, the outer casing of the gas-liquid separation device further includes a baffle plate, which is disposed on the second fixing part and extends toward the first fixing part. The baffle plate encloses and forms a receiving cavity, and the second end of the first separation part extends into the receiving cavity.

[0019] In this solution, the above-mentioned arrangement is used to prevent the sewage flowing on the second separation section from mixing with the air flowing on the first separation section when it is near the end of the bypass pipe and is drawn in, thus preventing mutual interference.

[0020] Preferably, the inner wall of the baffle is provided with an internal thread, the second end of the first separation part is provided with an external thread, and the second end of the first separation part is screwed to the baffle.

[0021] In this solution, the second end of the first separating part is connected to the second fixing part and the baffle through the above-mentioned arrangement, thereby improving the structural stability of the second end of the first separating part and the baffle.

[0022] Preferably, the outer shell of the gas-liquid separator extends into the bypass pipe, and the outer shell of the gas-liquid separator has a cylindrical structure and the same diameter as the inner wall of the bypass pipe;

[0023] Alternatively, the outer casing of the gas-liquid separator may be located between the bypass pipe and the drain outlet. The outer casing of the gas-liquid separator may have a conical structure, with the larger diameter end of the outer casing being the same as the diameter of the drain outlet, and the smaller diameter end being the same as the diameter of the bypass pipe.

[0024] In this design, the cylindrical outer shell effectively guides wastewater. Furthermore, the conical outer shell further enhances the adhesion effect of the wastewater to the walls, increasing the separation efficiency between wastewater and air.

[0025] Preferably, when the outer casing of the gas-liquid separator has a conical structure, the pitch of the second separation section gradually decreases from the region near the drain outlet toward the region near the bypass pipe.

[0026] In this scheme, the above settings are used to balance the centrifugal force requirements for accelerating the flow of sewage and separating air.

[0027] A water purifier and coffee maker, the water purifier and coffee maker including the gas-liquid separation device as described above.

[0028] In this solution, the water purifier and coffee maker includes the aforementioned gas-liquid separation device. This device separates and discharges air from wastewater without clogging the drain outlet, while the wastewater enters the venturi tube under negative pressure through a bypass pipe and is then discharged. No additional drainage structure, such as a water pump, is required. This results in lower costs and a correspondingly improved user experience. The continuous discharge of wastewater via the gas-liquid separation device, while preventing air from being drawn into the venturi tube and generating noise, further enhances the user experience.

[0029] The significant advantages of this invention are as follows: By configuring a first separation section and a second separation section with different pitches, the water flows through the second separation section into the drain outlet and a bypass pipe connected to the drain outlet, effectively removing wastewater. Simultaneously, air in the wastewater is separated from the wastewater flowing into the second separation section upon entering the gas-liquid separator. Air is then guided by the first separation section and discharged from the gas-liquid separator away from the bypass pipe, preventing air from being drawn into the Venturi tube under negative pressure and generating noise. When the gas-liquid separator is used to eliminate noise, wastewater can be continuously discharged without sealing the drain outlet or resetting a sealed drain outlet. Attached Figure Description

[0030] Figure 1 This diagram shows the positional relationship between the water receiving box and the venturi tube in a preferred embodiment of the present invention.

[0031] Figure 2 This is a diagram showing the positional relationship between the gas-liquid separation device and the water receiving box in a preferred embodiment of this utility model.

[0032] Figure 3 This is a perspective view of a gas-liquid separation device according to a preferred embodiment of the present invention.

[0033] Figure 4 This is a perspective view of the first separation part of a preferred embodiment of the present invention.

[0034] Figure 5 This diagram shows the positional relationship between the outer shell and the second separation part in a preferred embodiment of the present invention.

[0035] Figure 6This is a schematic diagram of a preferred embodiment of the present invention, showing a conical shell structure.

[0036] Explanation of reference numerals in the attached figures:

[0037] Venturi tube 1

[0038] Bypass pipe 11

[0039] Water collection box 2

[0040] Drainage outlet 21

[0041] First separation section 3

[0042] Second separation section 4

[0043] Casing 5

[0044] Inlet 51

[0045] Outlet 52

[0046] First fixing part 53

[0047] Second fixing part 54

[0048] Exhaust section 6

[0049] Exhaust port 61

[0050] baffle 7

[0051] Depth direction A Detailed Implementation

[0052] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0053] This embodiment provides a gas-liquid separation device, the specific structure of which is as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the gas-liquid separator is used to discharge the gas in the bypass pipe 11 of the venturi tube 1. The bypass pipe 11 is connected to the drain port 21 of the water receiving box 2. The gas-liquid separator extends at least partially into the drain port 21, and the axis of the gas-liquid separator coincides with the axis of the drain port 21. The gas-liquid separator also includes:

[0054] The first separation section 3 has a spiral structure and is located at the axis of the gas-liquid separation device. The first end of the outer shell 5 of the gas-liquid separation device has a water inlet 51 and the second end of the outer shell 5 of the gas-liquid separation device has a water outlet 52. The first end of the first separation section 3 is connected to the first end of the outer shell 5 of the gas-liquid separation device and is offset from the water inlet 51. The second end of the first separation section 3 is connected to the second end of the outer shell 5 of the gas-liquid separation device and is offset from the water outlet 52.

[0055] The second separation section 4 is disposed on the inner wall of the outer shell 5 of the gas-liquid separation device. The second separation section 4 has a spiral structure and is spaced apart from the first separation section 3. The pitch of the first separation section 3 is smaller than the pitch of the second separation section 4.

[0056] Specifically, the drain outlet 21 is a circular hole. The bypass pipe 11 is connected to the water receiving box 2 through the drain outlet 21. Utilizing the ejector effect of the Venturi tube 1, the sewage in the water receiving box 2 is simultaneously ejected and emptied while the wastewater is being ejected, achieving automatic sewage emptying without the need for an additional water pump structure. This is existing technology and will not be elaborated further here. The gas-liquid separation device extends at least partially into the drain outlet 21, and further into the bypass pipe 11. The axis of the gas-liquid separation device coincides with the axis of the drain outlet 21. Furthermore, the axis of the gas-liquid separation device coincides with the axis of the bypass pipe 11. The gas-liquid separation device includes a housing 5, which extends into the drain outlet 21. The housing 5 has an inlet 51 at its first end and an outlet 52 at its second end. The housing 5 contains a first separation section 3 and a second separation section 4. The first separation section 3 is located on the axis of the gas-liquid separation device and is offset from the inlet 51. The second separation section 4 is located on the inner wall of the housing 5 and is spaced apart from the first separation section 3. The first separation section 3 and the second separation section 4 are both spiral structures with spiral plates to guide sewage or air. The two have different pitches. The first separation section 3, located on the axis of the gas-liquid separator, is used to guide air so that the air separated from the sewage is discharged separately. The second separation section 4, located on the inner wall of the outer shell 5, is used to guide sewage. Sewage enters the outer shell 5 from the inlet 51 and is guided by the second separation section 4 to flow out from the outlet 52 into the bypass pipe 11 connected to the drain outlet 21, thereby achieving sewage discharge.

[0057] Understandably, the pitch of the second separation section 4 is greater than that of the first separation section 3. The second separation section 4 is located on the inner wall of the outer casing 5. Since the density of water is much higher than that of air, the water flow is dominated by inertia and tends to maintain a straight-line motion. At the same time, utilizing the wall adhesion effect of sewage, the sewage flows downward along the second separation section 4 with low resistance and low disturbance under the guidance of the second separation section 4 and under the action of centrifugal force. This allows the sewage to flow from the second separation section 4 into the bypass pipe 11 connected to the Venturi tube 1, achieving effective sewage discharge. Air has low density and buoyancy effect. After the low-density air enters the gas-liquid separator, it does not need to rely entirely on the centrifugal force of the second separation section 4. At this time, the small-pitch first separation section 3 can enhance the centrifugal effect, forcing the air to converge towards the center. Under the combined action of the first separation section 3 and buoyancy, it flows upward and is discharged from the axis of the gas-liquid separator in a direction away from the bypass pipe 11. It will not enter the bypass pipe 11 of the Venturi tube 1, achieving gas return. The sewage continues to flow downward and flows into the Venturi tube 1 through the outlet 52. This design avoids the intake of air into the Venturi tube 1 under negative pressure, thus preventing noise and improving the problem of excessive noise from air bubbles in the Venturi tube 1. When the gas-liquid separation device is used to eliminate noise, wastewater can be continuously discharged without sealing the drain outlet 21 or resetting the sealed drain outlet 21.

[0058] Furthermore, after the wastewater is discharged, only air enters the gas-liquid separator. This air continuously exits through the first separation section 3, allowing the gas-liquid separator to operate continuously without needing to seal the drain outlet 21 and without generating noise. During this period, the Venturi jet 1 operates independently, without air mixing or noise, until the Venturi jet 1 stops.

[0059] like Figure 4 As shown, in this embodiment, the gas-liquid separation device further includes an exhaust section 6. The first end of the exhaust section 6 is connected to the first end of the first separation section 3, and the second end of the exhaust section 6 extends away from the drain outlet 21 along the depth direction A of the water receiving box 2.

[0060] Specifically, the exhaust section 6 is an exhaust pipe. The outer casing 5 extends into the drain outlet 21 and is located within the bypass pipe 11. The exhaust section 6 extends from the drain outlet 21 and extends towards the water collection box 2 along the depth direction A away from the drain outlet 21. The exhaust section 6 is located at the axis of the gas-liquid separator and communicates with the first separation section 3. Under the guidance of the first separation section 3, the air flows upward and along the depth direction A away from the drain outlet 21, ultimately being discharged from the water collection box 2. This prevents air from accumulating inside the outer casing 5 and being re-inhaled into the bypass pipe 11, thus improving the noise reduction effect.

[0061] In this embodiment, the first end of the exhaust section 6 extends from the first end of the housing 5 of the gas-liquid separator into the housing 5 of the gas-liquid separator, and the exhaust section 6 has a cylindrical structure.

[0062] Specifically, the exhaust section 6 has a cylindrical structure. The first end of the exhaust section 6 extends into the housing 5 from the first end of the housing 5 and wraps around the first end of the first separation section 3. From the outside, the first end of the exhaust section 6 is fitted on the outer periphery of the first end of the first separation section 3. When air flows from the second end of the first separation section 3 towards the first end, the exhaust section 6 at the end near the water inlet 51 of the housing 5 serves as a shielding structure to block sewage, preventing sewage from interfering with the air flow. This improves the efficiency of air capture by extending the exhaust section 6.

[0063] In this embodiment, the venting part 6 has a vent hole 61 that extends through the water receiving box 2 along the depth direction A. The first end of the first separating part 3 extends into the vent hole 61. The first end of the first separating part 3 is provided with an external thread, and the vent hole 61 is provided with an internal thread. The first end of the first separating part 3 is screwed into the vent hole 61.

[0064] Specifically, the vent 61 is provided through the depth direction A, and the vent 6 wraps around the first end of the first separation part 3 through the vent 61, thereby extending the vent 6 to prevent sewage from interfering with air discharge and to improve air collection efficiency. Furthermore, the vent 61 has an internal thread on the inner wall corresponding to the outer edge of the first end of the first separation part 3, and the outer edge of the first end of the first separation part 3 has an external thread, so that when the vent 6 wraps around the first end of the first separation part 3 through the vent 61, the vent 6 is connected to the first separation part 3 by screwing. In addition, the extended vent 6 passes through the first end of the outer casing 5, i.e., it connects to the first end of the outer casing 5. Thus, when the vent 6 is screwed to the first separation part 3, the first end of the first separation part 3, the vent 6, and the first end of the outer casing 5 are connected to form a whole, thereby improving the structural stability of the first end of the first separation part 3 and the vent 6.

[0065] In this embodiment, a first fixing part 53 is provided at the first end of the housing 5 of the gas-liquid separator, a second fixing part 54 is provided at the second end of the housing 5 of the gas-liquid separator, the first end of the exhaust part 6 is connected to the first fixing part 53 and extends into the housing 5 of the gas-liquid separator from the first fixing part 53, the water inlet 51 is provided on the first fixing part 53 and located on the outer periphery of the exhaust part 6, the second end of the first separation part 3 is connected to the second fixing part 54, and the water outlet 52 is provided on the second fixing part 54 and located on the outer periphery of the second end of the first separation part 3.

[0066] Specifically, the outer casing 5 has a cylindrical structure and extends through the casing along its axis. A first fixing part 53 is located at the first end of the outer casing 5, and a second fixing part 54 is located at the second end. Both the first fixing part 53 and the second fixing part 54 are annular components. Taking the first fixing part 53 as an example, the exhaust part 6 extends into the outer casing 5 and includes the first end of the first separating part 3. The first fixing part 53, located at the first end of the outer casing 5, is fitted onto the outer periphery of the exhaust part 6. The first fixing part 53 also includes multiple fixing members that extend to the outer surface of the exhaust part 6, connecting the first fixing part 53 to the exhaust part 6. The exhaust part 6 is screwed to the first end of the first separating part 3, and the first fixing part 53 is connected to the first end of the outer casing 5, thus forming a whole with the first end of the first separating part 3 connected to the outer casing 5, maintaining the first separating part 3 and the second separating part 4 spaced apart. It can be understood that the water inlet 51 is located on the outer periphery of the exhaust part 6 and between two adjacent fixing members.

[0067] Similarly, the second fixing part 54 is located at the second end of the outer casing 5 and sleeved on the outer periphery of the smoke exhaust part 6. The second fixing part 54 also includes multiple fixing members that extend to and connect with the outer surface of the first separating part 3, thereby connecting the second fixing part 54 to the smoke exhaust part 6 and the second end of the outer casing 5, thus forming a whole with the second end of the first separating part 3 and the outer casing 5, maintaining the first separating part 3 and the second separating part 4 spaced apart. The water outlet 52 is located on the outer periphery of the first separating part 3 and between two adjacent fixing members. The water inlet 51 and the water outlet 52 correspond to the areas spaced apart between the first separating part 3 and the second separating part 4 to avoid structural interference between the water inlet 51 and the water outlet 52 and the first separating part 3.

[0068] Furthermore, in this embodiment, the outer shell of the gas-liquid separation device also includes a baffle 7, which is disposed on the second fixing part 54 and extends toward the first fixing part 53. The baffle 7 encloses and forms a receiving cavity, and the second end of the first separation part 3 extends into the receiving cavity.

[0069] Specifically, the baffle 7 has a cylindrical structure to form a receiving cavity within it. The baffle 7 is connected to the second fixing part 54 and extends from the second fixing part 54 toward the first fixing part 53. The second end of the first separating part 3 extends into the receiving cavity and is connected to the second fixing part 54. The fixing member of the second fixing part 54 is connected to the outer surface of the baffle 7. The baffle 7 is installed in the area near the outlet 52 to prevent the sewage flowing on the second separating part 4 from mixing with the air flowing on the first separating part 3 when it is drawn into the area near the outlet 52, i.e., near the end of the bypass pipe 11, thus preventing mutual interference. It can be understood that the baffle 7 can be integrally formed with the second fixing part 54.

[0070] In this embodiment, the inner wall of the baffle 7 is provided with an internal thread, and the second end of the first separation part 3 is provided with an external thread. The second end of the first separation part 3 is screwed to the baffle 7.

[0071] Specifically, an internal thread is provided on the inner wall of the accommodating cavity, and an external thread is provided on the outer edge of the second end of the first separating part 3 corresponding to the internal thread, so as to realize the connection between the second end of the first separating part 3 and the second fixing part 54 and the baffle 7, thereby improving the structural stability of the second end of the first separating part 3 and the baffle 7.

[0072] In this embodiment, the outer shell 5 of the gas-liquid separator extends into the bypass pipe 11. The outer shell 5 of the gas-liquid separator has a cylindrical structure and the same diameter as the inner wall of the bypass pipe 11.

[0073] like Figure 6 As shown, in another embodiment, the outer casing 5 of the gas-liquid separator is located between the bypass pipe 11 and the drain outlet 21. The outer casing 5 of the gas-liquid separator has a conical structure. The larger diameter end of the outer casing 5 of the gas-liquid separator is the same as the diameter of the drain outlet 21, and the smaller diameter end of the outer casing 5 of the gas-liquid separator is the same as the diameter of the bypass pipe 11.

[0074] Specifically, along the depth direction A of the water receiving box 2, the drain outlet 21 is located above the bypass pipe 11. Along the depth direction A of the water receiving box 2, the drain outlet 21, bypass pipe 11, and venturi pipe 1 are arranged sequentially. The outer casing 5 of the gas-liquid separator is located inside the bypass pipe 11. The first end of the outer casing 5 is flush with the drain outlet 21, and the second end of the outer casing 5 extends into the bypass pipe 11 and faces the venturi pipe 1. The outer casing 5 has a conical structure. The first end of the outer casing 5 is larger and flush with the drain outlet 21, while the second end of the outer casing 5 is smaller and extends into the bypass pipe 11. Compared to a cylindrical outer casing 5, the conical structure of the outer casing 5 further enhances the guiding effect of wastewater. Furthermore, the conical structure of the outer casing 5 further enhances the adhesion effect of wastewater to the wall, increasing the separation efficiency of wastewater and air.

[0075] It is understandable that the inner wall of the conical shell 5 is also provided with a second separation part 4, and the second separation part 4 is spaced apart from the first separation part 3 at the axis.

[0076] Furthermore, when the outer casing 5 of the gas-liquid separator has a conical structure, the pitch of the second separation section 4 gradually decreases from the area near the drain outlet 21 toward the area near the bypass pipe 11.

[0077] Specifically, the pitch of the second separating section 4 located on the inner wall of the conical outer shell 5 gradually decreases from the region near the drain outlet 21 toward the region near the bypass pipe 11. The extension dimension of the second separating section 4 from the inner wall of the conical outer shell 5 remains constant, and the angle between the inner wall of the conical outer shell 5 and the depth direction A is no greater than 15°. At the same time, the pitch of the first separating section 3 located on the axis is constant, and the extension dimension of the first separating section 3 from the axis gradually increases from the region near the drain outlet 21 toward the region near the bypass pipe 11, thereby adapting to the tapering cavity of the outer shell 5 to better balance the centrifugal force requirements for water flow acceleration and air separation.

[0078] Of course, in other embodiments, the pitch of the second separation portion 4 on the inner wall of the conical shell 5 and the dimension extending from the inner wall of the shell 5 can be kept constant, as can the pitch of the first separation portion 3 located at the axis and the dimension extending outward from the axis, which can also achieve the centrifugal force requirement for balancing water flow acceleration and air separation.

[0079] This embodiment also provides a water purifier and coffee maker, which includes the aforementioned gas-liquid separation device. This device separates and discharges air from wastewater without clogging the drain outlet 21, while the wastewater enters the Venturi tube 1 and is discharged under negative pressure from the bypass pipe 11, eliminating the need for additional drainage structures such as a water pump. This results in lower costs and a correspondingly improved user experience. The continuous discharge of wastewater through the gas-liquid separation device, while preventing air from being drawn into the Venturi tube 1 and generating noise, further enhances the user experience.

[0080] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A gas-liquid separation device for discharging gas in a bypass pipe of a venturi, the bypass pipe communicating with a drain opening of a water trap, characterized by, The gas-liquid separation device at least partially extends into the drain port, an axis of the gas-liquid separation device coincides with an axis of the drain port, and the gas-liquid separation device further comprises: a first separation part in a spiral structure, the first separation part is arranged at the axis of the gas-liquid separation device, a first end of a shell of the gas-liquid separation device is provided with a water inlet, a second end of the shell of the gas-liquid separation device is provided with a water outlet, a first end of the first separation part is connected with the first end of the shell of the gas-liquid separation device and is arranged staggered with the water inlet, and a second end of the first separation part is connected with the second end of the shell of the gas-liquid separation device and is arranged staggered with the water outlet; a second separation part arranged on an inner wall of the shell of the gas-liquid separation device, the second separation part is in a spiral structure and is arranged spaced apart from the first separation part, and a pitch of the first separation part is smaller than a pitch of the second separation part.

2. The gas-liquid separation device of claim 1, wherein, The gas-liquid separation device further comprises an exhaust part, a first end of the exhaust part is communicated with the first end of the first separation part, and a second end of the exhaust part extends away from the drain port along a depth direction of the water receiving box.

3. The gas-liquid separation device of claim 2, wherein, The first end of the exhaust part extends from the first end of the shell of the gas-liquid separation device into the shell of the gas-liquid separation device, and the exhaust part is in a cylindrical structure.

4. The gas-liquid separation device of claim 3, wherein, The exhaust part is provided with an exhaust hole penetrating along the depth direction of the water receiving box, the first end of the first separation part extends into the exhaust hole, the first end of the first separation part is provided with external threads, the exhaust hole is provided with internal threads, and the first end of the first separation part is screwed with the exhaust hole.

5. The gas-liquid separation device of claim 4, wherein, The first end of the exhaust part is connected with the first fixed part and extends into the shell of the gas-liquid separation device from the first fixed part, the water inlet is arranged on the first fixed part and is located at a peripheral side of the exhaust part, the second end of the first separation part is connected with the second fixed part, and the water outlet is arranged on the second fixed part and is located at a peripheral side of the second end of the first separation part.

6. The gas-liquid separation device of claim 5, wherein, The shell of the gas-liquid separation device further comprises a baffle, the baffle is arranged on the second fixed part and extends towards the first fixed part, the baffle encloses a receiving cavity, and the second end of the first separation part extends into the receiving cavity.

7. The gas-liquid separation device of claim 6, wherein, An inner wall of the baffle is provided with internal threads, the second end of the first separation part is provided with external threads, and the second end of the first separation part is screwed with the baffle.

8. The gas-liquid separation device of claim 7, wherein, The shell of the gas-liquid separation device extends into the bypass pipe, the shell of the gas-liquid separation device is in a cylindrical structure and has the same diameter as an inner wall of the bypass pipe; or the shell of the gas-liquid separation device is located between the bypass pipe and the drain port, the shell of the gas-liquid separation device is in a conical structure, a large-diameter end of the shell of the gas-liquid separation device has the same diameter as the drain port, and a small-diameter end of the shell of the gas-liquid separation device has the same diameter as the bypass pipe.

9. The gas-liquid separation device of claim 8, wherein, When the shell of the gas-liquid separation device is in a conical structure, the pitch of the second separation part gradually decreases from the area close to the drain port to the area close to the bypass pipe.

10. A water purifying and coffee making all-in-one machine, characterized in that, The water purification and coffee integrated machine comprises the gas-liquid separation device according to any one of claims 1-9.

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