Gas-liquid separation structure and coffee brewing machine

Abstract

The utility model provides a gas-liquid separation structure and a coffee brewing machine. The gas-liquid separation structure is used for being installed and fixed in a machine body of the coffee brewing machine and comprises a shell and a flow blocking assembly. The shell is used for being installed and fixed in a machine body, a gas-liquid separation cavity is formed in the shell, and a liquid inlet, a liquid outlet and an exhaust port which are communicated with the gas-liquid separation cavity are further formed in the shell; the flow blocking assembly is fixedly installed in the gas-liquid separation cavity and arranged opposite to the liquid inlet, the flow blocking assembly divides the gas-liquid separation cavity into a first slow flow area, a second slow flow area and a third slow flow area which are sequentially communicated, the first slow flow area is located at the first end of the shell and communicated with the liquid inlet and the second slow flow area, and the third slow flow area is located at the second end of the shell and communicated with the liquid inlet and the third slow flow area. The third slow flow area is located at the second end of the shell and communicated with the liquid outlet and the second slow flow area, and the second slow flow area is located between the first slow flow area and the third slow flow area. The gas-liquid separation structure can effectively improve the brewing effect of coffee.

Description

Technical Field

[0001] This disclosure relates to the technical field of coffee brewing machines, and in particular to a gas-liquid separation structure and a coffee brewing machine. Background Technology

[0002] In related technologies, coffee brewing machines use nozzles to spray liquid into coffee cups to brew coffee grounds. However, the nozzles often contain a certain number of air bubbles when spraying liquid. These bubbles significantly affect the smoothness of the liquid flow, resulting in poor flow. Furthermore, excessively fast liquid flow rates prevent the liquid from fully mixing with the coffee grounds, thus greatly reducing the brewing quality. To address these issues, some manufacturers have conducted further research and development.

[0003] Existing technologies, such as patent CN219206573U, disclose a combination coffee pot with a de-aeration structure, including an inner liner, a powder compartment, and a water-air separation component. The powder compartment is connected to the inner liner and is connected to the water-air separation component via a water outlet pipe. The water-air separation component includes a water tank and an exhaust chamber. The water tank has an inlet connected to the water outlet pipe and an outlet at the bottom. The exhaust chamber is located on the outside of the water tank and is connected to the top of the water tank. The exhaust chamber has an exhaust port. The coffee pot described above can separate the liquid and air in the water tank, thereby allowing the liquid to flow out at a more uniform flow rate.

[0004] However, the coffee pots described above have a short residence time of liquid in the water tank, which prevents the gas from being fully separated from the liquid. This results in a low smoothness when the liquid flows out of the nozzle, which in turn greatly reduces the brewing effect of the coffee. Utility Model Content

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a gas-liquid separation structure and coffee brewing machine that can improve the brewing effect of coffee.

[0006] The purpose of this disclosure is achieved through the following technical solution:

[0007] A gas-liquid separation structure for installation and fixation within the body of a coffee brewing machine, comprising a housing and a flow-blocking component;

[0008] The housing is used to be installed and fixed inside the machine body. The housing forms a gas-liquid separation chamber. The housing also forms a liquid inlet, a liquid outlet, and an exhaust port that are connected to the gas-liquid separation chamber. The liquid inlet is located at the first end of the housing and is used to connect with the water tank of the coffee brewing machine. The liquid outlet is located at the second end of the housing and is located at the bottom of the second end of the housing. The liquid outlet is used to connect with the nozzle of the coffee brewing machine. The exhaust port is located at the top of the housing.

[0009] The flow-blocking component is installed and fixed inside the gas-liquid separation chamber and is positioned opposite to the liquid inlet. The flow-blocking component divides the gas-liquid separation chamber into a first slow-flow zone, a second slow-flow zone, and a third slow-flow zone that are connected in sequence. The first slow-flow zone is located at the first end of the housing and is connected to the liquid inlet and the second slow-flow zone. The third slow-flow zone is located at the second end of the housing and is connected to the liquid outlet and the second slow-flow zone. The second slow-flow zone is located between the first slow-flow zone and the third slow-flow zone.

[0010] In one embodiment, the flow-blocking assembly includes a first flow-blocking plate and a second flow-blocking plate, both of which are fixedly connected to the housing. The first flow-blocking plate is disposed at a first end of the housing and opposite to the liquid outlet. The second flow-blocking plate is disposed at a second end of the housing and between the liquid outlet and the first flow-blocking plate. The first flow-blocking plate and the second flow-blocking plate together divide the gas-liquid separation chamber into a first slow-flow zone, a second slow-flow zone, and a third slow-flow zone that are connected in sequence.

[0011] In one embodiment, the top of the first baffle plate is fixedly connected to the housing, the bottom of the first baffle plate is spaced apart from the inner wall of the gas-liquid separation chamber, and the bottom of the first baffle plate has an inclined surface that extends obliquely away from the liquid inlet.

[0012] In one embodiment, the two ends of the second flow baffle are spaced apart from the inner wall of the gas-liquid separation chamber, and the two ends of the second flow baffle are bent and extended toward the liquid outlet.

[0013] In one embodiment, the second baffle plate has an arc-shaped structure.

[0014] In one embodiment, the first baffle plate and the housing are integrally formed, and the second baffle plate and the housing are integrally formed.

[0015] In one embodiment, the bottom of the housing is inclined, and the bottom height of the first end of the housing is greater than the bottom height of the second end of the housing.

[0016] A coffee brewing machine includes a body, a water tank, a nozzle, and a gas-liquid separation structure as described in any of the above embodiments. The housing is installed and fixed inside the body, the liquid inlet is connected to the water tank, and the liquid outlet is connected to the nozzle.

[0017] In one embodiment, the gas-liquid separation structure further includes an inlet pipe, an outlet pipe, and an exhaust pipe. The inlet pipe is located at the inlet and connected to the inlet, and is connected to the water tank. The outlet pipe is located at the outlet and connected to the outlet, and is connected to the nozzle. The exhaust pipe is located at the exhaust port and connected to the exhaust port. The inlet pipe, outlet pipe, and exhaust pipe are all fixedly connected to the outer peripheral wall of the housing.

[0018] In one embodiment, the inlet pipe, the outlet pipe, and the exhaust pipe are all integrally formed with the housing.

[0019] In one embodiment, the gas-liquid separation structure further includes a fastener, a positioning hole is formed at the bottom of the housing, and a threaded hole corresponding to the positioning hole is formed on the body. The fastener is disposed in the threaded hole through the positioning hole and screwed to the body.

[0020] In one embodiment, a limiting plate is protruding from the bottom of the housing, and the body has a limiting slot corresponding to the limiting plate, wherein the limiting plate is engaged and limited within the limiting slot.

[0021] Compared with the prior art, this disclosure has at least the following advantages:

[0022] The aforementioned gas-liquid separation structure, with its flow-blocking component installed and fixed within the gas-liquid separation chamber and positioned opposite the inlet, obstructs and disperses the liquid entering from the inlet. This not only reduces the liquid's flow rate, allowing for thorough mixing with the coffee, but also further disperses the liquid, significantly improving the gas-liquid separation effect and enhancing the smoothness of the liquid, thus improving the coffee brewing effect. The flow-blocking component divides the gas-liquid separation chamber into three sequentially connected slow-flow zones: a first slow-flow zone, a second slow-flow zone, and a third slow-flow zone. The first slow-flow zone is located at the first end of the housing and is connected to both the inlet and the second slow-flow zone. The third slow-flow zone is located at the second end of the housing and is connected to both the outlet and the second slow-flow zone. The second slow-flow zone lies between the first and third slow-flow zones, increasing the residence time of the liquid within the gas-liquid separation chamber. This further enhances the gas-liquid separation effect and reduces the liquid's flow rate, ensuring that the liquid exiting the outlet mixes thoroughly with the coffee grounds in the coffee cup, thereby greatly improving the coffee brewing effect. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of a gas-liquid separation structure according to one embodiment;

[0025] Figure 2 for Figure 1 A schematic diagram of the internal structure of the gas-liquid separation structure shown.

[0026] Figure 3 for Figure 1 Another perspective view of the internal structure of the gas-liquid separation structure shown;

[0027] Figure 4 This is a schematic diagram of the internal structure of a gas-liquid separation structure. Detailed Implementation

[0028] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0032] like Figures 1 to 4 As shown, in one embodiment, a gas-liquid separation structure 10 is installed and fixed inside the body (not shown) of a coffee brewing machine, including a housing 100 and a flow-blocking assembly 200. The housing 100 is installed and fixed inside the machine body, and the housing 100 forms a gas-liquid separation chamber 110. The housing 100 also forms a liquid inlet 120, a liquid outlet 130, and a vent 140 that communicate with the gas-liquid separation chamber 110. The liquid inlet 120 is located at the first end of the housing 100 and is connected to the water tank (not shown) of the coffee brewing machine. The liquid outlet 130 is located at the second end of the housing 100. The liquid outlet 130 is located at the bottom of the second end of the housing 100. The liquid outlet 130 is used to communicate with the nozzle (not shown) of the coffee brewing machine. The exhaust port 140 is located at the top of the housing 100. The flow-blocking component 200 is installed and fixed in the gas-liquid separation chamber 110 and is arranged opposite to the liquid inlet 120 to block and disperse the liquid entering from the liquid inlet 120. This not only reduces the flow rate of the liquid so that the liquid can be fully mixed with the coffee, but also makes the liquid more dispersed, which greatly improves the gas-liquid separation effect of the liquid, improves the smoothness of the liquid, and thus improves the coffee brewing effect.

[0033] like Figures 1 to 4As shown, the flow-blocking component 200 further divides the gas-liquid separation chamber 110 into a first slow-flow zone 111, a second slow-flow zone 112, and a third slow-flow zone 113 connected in sequence. The first slow-flow zone 111 is located at the first end of the housing 100 and is connected to the liquid inlet 120 and the second slow-flow zone 112 respectively. The third slow-flow zone 113 is located at the second end of the housing 100 and is connected to the liquid outlet 130 and the second slow-flow zone 112 respectively. The second slow-flow zone 112 is located between the first slow-flow zone 111 and the third slow-flow zone 113 to increase the residence time of the liquid in the gas-liquid separation chamber 110. This not only further improves the gas-liquid separation effect of the liquid but also further reduces the flow rate of the liquid, so that the liquid discharged from the liquid outlet 130 can be fully mixed with the coffee powder in the coffee cup, thereby greatly improving the coffee brewing effect.

[0034] In this embodiment, when the water tank discharges liquid into the gas-liquid separation chamber 110 through the inlet 120, the flow-blocking component 200 can block the liquid flow to reduce the liquid flow rate and disperse the liquid, thereby improving the gas-liquid separation effect. After the liquid enters the gas-liquid separation chamber 110, it needs to pass through the first slow flow zone 111, the second slow flow zone 112, and the third slow flow zone 113 in sequence before entering the outlet 130. This not only further improves the gas-liquid separation effect but also further reduces the liquid flow rate, allowing the liquid discharged from the outlet 130 to be fully mixed with the coffee powder in the coffee cup.

[0035] The aforementioned gas-liquid separation structure 10, because the flow-blocking component 200 is installed and fixed inside the gas-liquid separation chamber 110 and is positioned opposite the liquid inlet 120, obstructs and disperses the liquid entering from the liquid inlet 120. This not only reduces the liquid flow rate, allowing the liquid to mix fully with the coffee, but also makes the liquid more dispersed, greatly improving the gas-liquid separation effect and increasing the smoothness of the liquid, thereby improving the coffee brewing effect. The flow-blocking component 200 divides the gas-liquid separation chamber 110 into a first slow-flow zone 111, a second slow-flow zone 112, and a third slow-flow zone 113 that are connected in sequence. The first slow-flow zone 111 is located in the first... At one end, the first slow flow zone 111 is connected to the liquid inlet 120 and the second slow flow zone 112 respectively. The third slow flow zone 113 is located at the second end of the housing 100. The third slow flow zone 113 is connected to the liquid outlet 130 and the second slow flow zone 112 respectively. The second slow flow zone 112 is located between the first slow flow zone 111 and the third slow flow zone 113 to increase the residence time of the liquid in the gas-liquid separation chamber 110. This not only further improves the gas-liquid separation effect of the liquid, but also further reduces the flow rate of the liquid, so that the liquid discharged from the liquid outlet 130 can be fully mixed with the coffee powder in the coffee cup, thereby greatly improving the coffee brewing effect.

[0036] like Figures 2 to 3 As shown, in one embodiment, the flow-blocking assembly 200 includes a first flow-blocking plate 210 and a second flow-blocking plate 220. Both the first flow-blocking plate 210 and the second flow-blocking plate 220 are fixedly connected to the housing 100. The first flow-blocking plate 210 is disposed at the first end of the housing 100 and is opposite to the liquid outlet 130. The second flow-blocking plate 220 is disposed at the second end of the housing 100 and is disposed between the liquid outlet 130 and the first flow-blocking plate 210. The first flow-blocking plate 210 and the second flow-blocking plate 220 together divide the gas-liquid separation chamber 110 into a first slow-flow zone 111 and a second slow-flow zone 111 that are connected in sequence. 2 and the third slow-flow zone 113, so that when the water tank delivers liquid to the first slow-flow zone 111 through the liquid inlet 120, the first baffle plate 210 can obstruct and disperse the liquid in the first slow-flow zone 111 to reduce the liquid flow rate in the first slow-flow zone 111 and also make the liquid in the first slow-flow zone 111 more dispersed; and when the liquid enters the second slow-flow zone 112, the second baffle plate 220 can obstruct and disperse the liquid in the second slow-flow zone 112 to reduce the liquid flow rate in the second slow-flow zone 112 and also make the liquid in the second slow-flow zone 112 more dispersed.

[0037] like Figures 2 to 3 As shown, in one embodiment, the top of the first baffle plate 210 is fixedly connected to the housing 100, the bottom of the first baffle plate 210 is spaced apart from the inner wall of the gas-liquid separation chamber 110, and the bottom of the first baffle plate 210 has an inclined surface 211. The inclined surface 211 extends inclinedly away from the liquid inlet 120 to increase the distance between the bottom of the first baffle plate 210 and the inner wall of the gas-liquid separation chamber 110, so that the liquid in the first slow flow zone 111 can enter the second slow flow zone 112 more smoothly.

[0038] like Figures 2 to 3 As shown, in one embodiment, the two ends of the second baffle plate 220 are spaced apart from the inner wall of the gas-liquid separation chamber 110, and the two ends of the second baffle plate 220 are bent and extended toward the liquid outlet 130, which effectively avoids the phenomenon of water accumulation in the gas-liquid separation structure 10 and greatly reduces the cleaning difficulty of the gas-liquid separation structure 10.

[0039] like Figures 2 to 3 As shown, in one embodiment, the second baffle plate 220 has an arc-shaped structure, which effectively avoids water accumulation in the gas-liquid separation structure 10 and greatly reduces the difficulty of cleaning the gas-liquid separation structure 10.

[0040] like Figures 2 to 3 As shown, in one embodiment, the first baffle plate 210 and the housing 100 are integrally formed, and the second baffle plate 220 and the housing 100 are integrally formed, so as to improve the structural compactness of the gas-liquid separation structure 10.

[0041] like Figures 1 to 3 As shown, in one embodiment, the bottom of the housing 100 is inclined, and the bottom height of the first end of the housing 100 is greater than the bottom height of the second end of the housing 100, so that the liquid entering the gas-liquid separation chamber 110 through the liquid inlet 120 can flow into the liquid outlet 130 in sequence through the first slow flow zone 111, the second slow flow zone 112 and the third slow flow zone 113 by its own gravity, so as to avoid water accumulation in the gas-liquid separation structure 10.

[0042] This disclosure also provides a coffee brewing machine, including a body, a water tank, a nozzle, and a gas-liquid separation structure 10 as described in any of the above embodiments. The housing 100 is installed and fixed in the body, the liquid inlet 120 is connected to the water tank, and the liquid outlet 130 is connected to the nozzle.

[0043] like Figures 1 to 3 As shown, in one embodiment, the gas-liquid separation structure 10 further includes an inlet pipe 300, an outlet pipe 400, and an exhaust pipe 500. The inlet pipe 300 is located at and connected to the inlet port 120 and is connected to the water tank. The outlet pipe 400 is located at and connected to the outlet port 130 and is connected to the nozzle. The exhaust pipe 500 is located at and connected to the exhaust port 140. The inlet pipe 300, the outlet pipe 400, and the exhaust pipe 500 are all fixedly connected to the outer peripheral wall of the housing 100, so that the water tank can transport liquid to the inlet port 120 through the inlet pipe 300, the outlet port 130 can transport liquid to the nozzle through the outlet pipe 400, and the exhaust port 140 can transport the gas in the gas-liquid separation chamber 110 to the external environment through the exhaust pipe 500.

[0044] like Figures 1 to 3 As shown, in one embodiment, the inlet pipe 300, the outlet pipe 400, and the exhaust pipe 500 are all integrally formed with the housing 100 to improve the structural compactness of the gas-liquid separation structure 10.

[0045] like Figures 1 to 3 As shown, in one embodiment, the gas-liquid separation structure 10 further includes fasteners (not shown). A positioning hole 150 is formed at the bottom of the housing 100, and a threaded hole (not shown) is formed on the body corresponding to the positioning hole 150. The fasteners are set in the threaded hole through the positioning hole 150 and screwed to the body, so as to facilitate the installation and disassembly of the gas-liquid separation structure 10 and greatly reduce the difficulty of replacing the gas-liquid separation structure 10.

[0046] like Figures 1 to 3As shown, in one embodiment, a limiting plate 160 protrudes from the bottom of the housing 100, and the body forms a limiting groove corresponding to the limiting plate 160. The limiting plate 160 is engaged and limited within the limiting groove (not shown), so that the limiting plate 160 can pre-fix the housing 100 before screwing the gas-liquid separation structure 10 onto the body, so that the positioning hole 150 and the threaded hole are precisely aligned, which greatly reduces the installation difficulty of the gas-liquid separation structure 10. At the same time, it can also avoid the misalignment of the threaded hole and the positioning hole 150 when the housing 100 and the body are assembled, which greatly improves the installation convenience of the gas-liquid separation structure 10.

[0047] Compared with the prior art, this disclosure has at least the following advantages:

[0048] The aforementioned coffee brewing machine, because the flow-blocking component 200 is installed and fixed inside the gas-liquid separation chamber 110 and is positioned opposite the liquid inlet 120, obstructs and disperses the liquid entering from the liquid inlet 120. This not only reduces the liquid flow rate, allowing the liquid to mix fully with the coffee, but also makes the liquid more dispersed, greatly improving the gas-liquid separation effect and increasing the smoothness of the liquid, thereby improving the coffee brewing effect. The flow-blocking component 200 divides the gas-liquid separation chamber 110 into a first slow-flow zone 111, a second slow-flow zone 112, and a third slow-flow zone 113 that are connected in sequence. The first slow-flow zone 111 is located in the first... At the second end of the housing 100, the first slow flow zone 111 is connected to the liquid inlet 120 and the second slow flow zone 112, respectively. The third slow flow zone 113 is located at the second end of the housing 100 and is connected to the liquid outlet 130 and the second slow flow zone 112, respectively. The second slow flow zone 112 is located between the first slow flow zone 111 and the third slow flow zone 113 to increase the residence time of the liquid in the gas-liquid separation chamber 110. This not only further improves the gas-liquid separation effect of the liquid, but also further reduces the flow rate of the liquid, so that the liquid discharged from the liquid outlet 130 can be fully mixed with the coffee powder in the coffee cup, thereby greatly improving the coffee brewing effect.

[0049] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A gas-liquid separation structure for being fixedly installed in a body of a coffee brewing machine, comprising a shell and a flow resistance component; characterized in that the shell is used for being fixedly installed in the body, the shell is formed with a gas-liquid separation cavity, the shell is further formed with a liquid inlet, a liquid outlet and an exhaust port which are in communication with the gas-liquid separation cavity, the liquid inlet is arranged at a first end of the shell, the liquid inlet is used for being in communication with a water tank of the coffee brewing machine, the liquid outlet is arranged at a second end of the shell, the liquid outlet is arranged at a bottom of the second end of the shell, the liquid outlet is used for being in communication with a nozzle of the coffee brewing machine, and the exhaust port is arranged at a top of the shell; the flow resistance component is fixedly installed in the gas-liquid separation cavity and is arranged opposite to the liquid inlet, the flow resistance component divides the gas-liquid separation cavity into a first flow slowing area, a second flow slowing area and a third flow slowing area which are sequentially in communication, the first flow slowing area is located at the first end of the shell, the first flow slowing area is in communication with the liquid inlet and the second flow slowing area respectively, the third flow slowing area is located at the second end of the shell, the third flow slowing area is in communication with the liquid outlet and the second flow slowing area respectively, and the second flow slowing area is located between the first flow slowing area and the third flow slowing area.

2. The gas-liquid separation structure according to claim 1, characterized by, the flow resistance component comprises a first flow resistance plate and a second flow resistance plate, the first flow resistance plate and the second flow resistance plate are fixedly connected with the shell, the first flow resistance plate is arranged at the first end of the shell and is arranged opposite to the liquid outlet, the second flow resistance plate is arranged at the second end of the shell and is arranged between the liquid outlet and the first flow resistance plate, and the first flow resistance plate and the second flow resistance plate jointly divide the gas-liquid separation cavity into the first flow slowing area, the second flow slowing area and the third flow slowing area which are sequentially in communication.

3. The gas-liquid separation structure according to claim 2, characterized by, a top of the first flow resistance plate is fixedly connected with the shell, a bottom of the first flow resistance plate is arranged in a spaced manner with an inner wall of the gas-liquid separation cavity, and the bottom of the first flow resistance plate is formed with an inclined surface which extends in a direction away from the liquid inlet.

4. The gas-liquid separation structure according to claim 3, characterized by, both ends of the second flow resistance plate are arranged in a spaced manner with the inner wall of the gas-liquid separation cavity, and both ends of the second flow resistance plate extend in a bent manner towards the liquid outlet.

5. The gas-liquid separation structure according to claim 4, characterized by the second flow resistance plate is in an arc-shaped structure; and / or the first flow resistance plate and the shell are in an integrally formed structure, and the second flow resistance plate and the shell are in an integrally formed structure.

6. The gas-liquid separation structure according to claim 1, wherein a bottom of the shell is arranged in an inclined manner, and a bottom height of the first end of the shell is greater than a bottom height of the second end of the shell.

7. A coffee brewing machine, characterized in that a body, a water tank, a nozzle and the gas-liquid separation structure according to any one of claims 1 to 6, the shell is fixedly installed in the body, the liquid inlet is in communication with the water tank, and the liquid outlet is in communication with the nozzle.

8. The coffee maker of claim 7, wherein, The gas-liquid separation structure further comprises a liquid inlet pipe, a liquid outlet pipe and an exhaust pipe, the liquid inlet pipe is arranged at the liquid inlet and communicates with the liquid inlet, the liquid inlet pipe communicates with the water tank, the liquid outlet pipe is arranged at the liquid outlet and communicates with the liquid outlet, the liquid outlet pipe communicates with the nozzle, the exhaust pipe is arranged at the exhaust port and communicates with the exhaust port, and the liquid inlet pipe, the liquid outlet pipe and the exhaust pipe are fixedly connected with the outer peripheral wall of the shell.

9. The coffee maker of claim 8, wherein, The liquid inlet pipe, the liquid outlet pipe and the exhaust pipe are integrally formed with the shell.

10. The coffee brewer of claim 7, wherein, The gas-liquid separation structure further comprises a fastener, the bottom of the shell is formed with a positioning hole, the machine body is formed with a threaded hole corresponding to the positioning hole, the fastener is arranged in the threaded hole through the positioning hole and is screwed to the machine body; and / or, The bottom of the shell is protrudingly provided with a limiting plate, the machine body is formed with a limiting clamping groove corresponding to the limiting plate, and the limiting plate is clamped and limited in the limiting clamping groove.

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