Flow dividing assembly and brewing head of coffee machine
By designing a flow divider with a slow-flow groove and a side flow hole in the coffee machine brewing head, the problem of uneven water flow speed caused by excessive outlet pressure is solved, thereby improving the coffee extraction effect.
Patent Information
- Application Number
- CN202422646642.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Excessive pressure at the outlet of the brew head in existing coffee machines causes uneven water flow in the diversion holes, resulting in poor coffee extraction.
Design a flow divider assembly, including a connecting part, a flow buffering part, and a flow divider plate. The flow buffering groove buffers and depressurizes the high-pressure water, reduces the water flow rate in the side flow holes, and makes the water evenly sprayed on the flow divider plate, thereby evenly extracting coffee powder.
It improves the uniformity of water output from the brew head, thus enhancing the coffee extraction effect.
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Figure CN223900664U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of coffee machines, in particular to a flow distribution assembly and a brewing head of a coffee machine. BACKGROUND
[0002] In the related art, the brewing head of the coffee machine is the core device of the coffee machine, the brewing head is provided with a water outlet, a flow distribution disc is fixed below the water outlet, and a plurality of flow distribution holes are provided on the flow distribution disc, so that when water is discharged from the water outlet onto the flow distribution disc, the water on the flow distribution disc can fall evenly onto the coffee powder through the flow distribution holes, thereby improving the coffee extraction effect, for example, the prior art patent CN217243813U.
[0003] However, when the pressure of the water sprayed from the water outlet of the brewing head to the flow distribution disc is too large, the flow velocity of the flow distribution holes located directly below the water outlet will be much greater than that of the flow distribution holes at other positions, causing the local water discharge of the brewing head to be too large, greatly reducing the uniformity of the water discharge of the brewing head, and thereby easily causing the coffee powder near the flow distribution holes with more water discharge to be over-extracted, and the coffee powder near the flow distribution holes with less water discharge to be under-extracted, greatly reducing the coffee extraction effect. UTILITY MODEL CONTENT
[0004] The purpose of the present disclosure is to overcome the deficiencies in the prior art and provide a flow distribution assembly and a brewing head of a coffee machine that can effectively improve the coffee extraction effect.
[0005] The purpose of the present disclosure is achieved by the following technical solutions:
[0006] A flow distribution assembly for connecting to the liquid outlet of the base of a brewing head, comprising:
[0007] A flow distribution disc, a plurality of flow distribution holes being uniformly provided on the flow distribution disc;
[0008] The flow distribution assembly further comprises a flow distribution member, the flow distribution member comprising:
[0009] A connecting portion for connecting to the liquid outlet, the connecting portion being provided with a liquid inlet channel and a plurality of side flow holes, each side flow hole being communicated with the liquid outlet through the liquid inlet channel, and the plurality of side flow holes being arranged along the outer periphery of the connecting portion; and
[0010] A flow slowing portion connected to the bottom of the connecting portion, the flow slowing portion being provided with a flow slowing groove, the flow slowing groove being communicated with the liquid inlet channel, the flow distribution disc being peripherally arranged and fixed to the outer peripheral wall of the flow slowing portion, and the flow distribution disc being located below the side flow holes.
[0011] In one embodiment, the plurality of side flow holes are arranged at intervals along the outer periphery of the connecting portion.
[0012] In one of the embodiments, the connecting portion and the slow flow portion are integrally formed.
[0013] In one of the embodiments, the diameter of the liquid inlet channel is greater than the diameter of each of the side flow holes.
[0014] In one of the embodiments, the extension direction of the liquid inlet channel and the extension direction of each of the side flow holes have a preset included angle.
[0015] In one of the embodiments, the preset included angle is 60°-120°.
[0016] In one of the embodiments, the diameter of the cross section of the slow flow portion gradually increases away from the connecting portion, and the flow distribution disc is arranged at the bottom of the slow flow portion.
[0017] A brewing head of a coffee machine, comprising a base and the flow distribution assembly according to any one of the embodiments, and the connecting portion is connected to the liquid outlet.
[0018] In one of the embodiments, the connecting portion is detachably connected to the liquid outlet.
[0019] In one of the embodiments, the connecting end of the connecting portion is formed with a threaded connection surface, the base is provided with a threaded hole in communication with the liquid outlet, and the connecting end of the connecting portion is arranged in the threaded hole and is threadedly connected with the base.
[0020] In one of the embodiments, the brewing head is provided with a water inlet pipe, a temperature sensor, a heater and a bump type temperature control switch, the water inlet end of the water inlet pipe is used to communicate with the hot water output end of a hot water boiler, the water outlet end of the water inlet pipe is arranged in the threaded hole and sequentially communicates with the liquid outlet and the liquid inlet channel; the temperature sensor is used to detect the temperature of the heater, the temperature sensor is electrically connected with the heater, the heater is used to heat the brewing head, the heater is electrically connected with the bump type temperature control switch, and the bump type temperature control switch is used to be disconnected when the temperature of the heater reaches a dangerous value.
[0021] In one of the embodiments, the brewing head further comprises a temperature compensation sensor, the base is further provided with a mounting hole, the temperature compensation sensor is arranged in the mounting hole and is fixedly connected with the base to detect the water temperature on the flow distribution disc; and the temperature compensation sensor is electrically connected with the hot water boiler.
[0022] In one of the embodiments, the outer peripheral wall of the brewing head is further provided with an anti-scald sleeve.
[0023] Compared with the prior art, the present disclosure has at least the following advantages:
[0024] The shunt assembly described above, since the connecting portion is used for connecting to the liquid outlet, the connecting portion is provided with a liquid inlet channel and a plurality of side flow holes, each side flow hole is communicated with the liquid outlet through the liquid inlet channel, and the plurality of side flow holes are arranged along the outer circumferential side of the connecting portion and connected to the bottom of the connecting portion. The slow flow portion is provided with a slow flow groove, the slow flow groove is communicated with the liquid inlet channel, the shunt disc is arranged around and fixed to the outer circumferential wall of the slow flow portion, and the shunt disc is located below the side flow hole. When the pressure of the water discharged from the liquid outlet into the liquid inlet channel is too large, the slow flow groove can effectively buffer and decompress the high-pressure water in the liquid inlet channel, and the water after buffering is discharged from the side flow hole, so that the flow rate of the water discharged from the side flow hole is greatly reduced, avoiding the phenomenon that the water flow rate discharged from the side flow hole is too fast to cause poor water discharge uniformity. In turn, the water discharged from the side flow hole can be uniformly sprayed on the shunt disc, and the water on the shunt disc is uniformly sprayed on the coffee powder through each shunt hole, greatly improving the water discharge uniformity of the brewing head, thereby effectively improving the extraction effect of coffee. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0026] Figure 1 The structure schematic diagram of the brewing head of an embodiment;
[0027] Figure 2 The internal structure schematic diagram of the brewing head shown in Figure 1
[0028] Figure 3 The partial structure schematic diagram of the brewing head shown in Figure 1
[0029] Figure 4 The other partial structure schematic diagram of the brewing head shown in Figure 1
[0030] Figure 5 The structure schematic diagram of the shunt assembly of an embodiment;
[0031] Figure 6 The internal partial structure schematic diagram of the shunt assembly shown in Figure 5 DETAILED DESCRIPTION
[0032] For the purposes of this disclosure, reference will be made to the accompanying drawings which form a part of the disclosure. The drawings are not necessarily to scale of the preferred embodiments of the present disclosure. It is to be understood that the
[0033] It is to be understood that the terms "including", "comprising", "consisting" and "consisting essentially of" when used before the recitation of a step or the steps of a process, or steps of a process, mean "including but not limited to", "comprising but not limited to", "consisting of but not limited to", or "consisting essentially of but not limited to", respectively.
[0034] 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 in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0035] In order to make the technical scheme and beneficial effects of the present disclosure more comprehensible, the present disclosure will be further described in detail below in conjunction with specific embodiments:
[0036] As Figures 1 to 6As shown, the shunt assembly 200 of an embodiment is used to connect to the liquid outlet 110 of the base 100 of the brewing head 10, the shunt assembly 200 comprises a shunt disc 210 and a shunt member 220, the shunt disc 210 is uniformly provided with a plurality of shunt holes 211; the shunt member 220 comprises a connecting portion 221 and a slow flow portion 222; the connecting portion 221 is used to connect to the liquid outlet 110, the connecting portion 221 is provided with a liquid inlet channel 221a and a plurality of side flow holes 221b, each side flow hole 221b is communicated with the liquid outlet 110 through the liquid inlet channel 221a, and the plurality of side flow holes 221b are arranged along the outer circumferential side of the connecting portion 221; and the slow flow portion 222 is connected to the bottom of the connecting portion 221, the slow flow portion 222 is provided with a slow flow groove 222a, the slow flow groove 222a is communicated with the liquid inlet channel 221a, the shunt disc 210 is circumferentially arranged and fixed to the outer circumferential wall of the slow flow portion 222, and the shunt disc 210 is located below the side flow hole 221b, so that when the pressure of the water discharged from the liquid outlet 110 into the liquid inlet channel 221a is too high, the slow flow groove 222a can effectively buffer and reduce the pressure of the high-pressure water in the liquid inlet channel 221a, and the water after buffering is discharged from the side flow hole 221b, so that the flow rate of the water discharged from the side flow hole 221b is greatly reduced, the phenomenon of poor water discharge uniformity caused by the too fast flow rate of the water sprayed from the side flow hole 221b is avoided, and then the water discharged from the side flow hole 221b can be uniformly sprayed on the shunt disc 210, and the water on the shunt disc 210 is uniformly sprayed on the coffee powder through each shunt hole 211, so that the water discharge uniformity of the brewing head 10 is greatly improved, and the extraction effect of coffee is effectively improved.
[0037] In the embodiment, when coffee is extracted by using a coffee machine, first, an extraction container containing coffee powder is placed directly below the shunt disc 210, and then the coffee machine is started; then, the liquid outlet 110 discharges high-pressure water into the liquid inlet channel 221a; then, after the high-pressure water in the liquid inlet channel 221a enters the slow flow groove 222a, the slow flow groove 222a can buffer and reduce the pressure of the high-pressure water to reduce the flow rate of the water in the slow flow groove 222a, and then the water after buffering and reducing the pressure is uniformly sprayed on the shunt disc 210 from the side flow hole 221b; finally, the water on the shunt disc 210 can be uniformly sprayed on the coffee powder through each shunt hole 211, so that the coffee powder can be fully mixed and extracted with water.
[0038] The shunt assembly 200 is connected to the liquid outlet 110 at the connecting portion 221, the connecting portion 221 is provided with a liquid inlet channel 221a and a plurality of side flow holes 221b, each side flow hole 221b is communicated with the liquid outlet 110 through the liquid inlet channel 221a, the plurality of side flow holes 221b are arranged along the outer circumferential side of the connecting portion 221 and are connected to the bottom of the connecting portion 221, the slow flow portion 222 is provided with a slow flow groove 222a, the slow flow groove 222a is communicated with the liquid inlet channel 221a, the shunt disc 210 is arranged around and fixed to the outer circumferential wall of the slow flow portion 222, and the shunt disc 210 is located below the side flow hole 221b. When the pressure of the water in the liquid inlet channel 221a is too high, the slow flow groove 222a can effectively buffer and reduce the pressure of the high-pressure water in the liquid inlet channel 221a, and the water after buffering is discharged from the side flow hole 221b, so that the flow rate of the water discharged from the side flow hole 221b is greatly reduced, and the phenomenon of poor water discharge uniformity caused by the too fast flow rate of the water sprayed from the side flow hole 221b is avoided. The water discharged from the side flow hole 221b can be uniformly sprayed on the shunt disc 210, and the water on the shunt disc 210 is uniformly sprayed on the coffee powder through the shunt holes 211, thereby greatly improving the water discharge uniformity of the brewing head 10, and effectively improving the extraction effect of the coffee.
[0039] As shown in Figures 5 to 6 In one embodiment, the plurality of side flow holes 221b are arranged at intervals along the outer circumferential side of the connecting portion 221, so that the water after buffering and pressure reduction can be uniformly sprayed on the shunt disc 210, and the water on the shunt disc 210 is uniformly sprayed on the coffee powder through the shunt holes 211, thereby improving the water discharge uniformity of the brewing head 10 and improving the extraction effect of the coffee.
[0040] As shown in Figure 6 In one embodiment, the connecting portion 221 and the slow flow portion 222 are integrally formed, so as to improve the compactness of the shunt 220.
[0041] As shown in Figures 5 to 6 In one embodiment, the diameter of the liquid inlet channel 221a is greater than the diameter of each side flow hole 221b, so that the side flow hole 221b can stably discharge water, avoid the phenomenon of poor water discharge stability of each side flow hole 221b caused by too small water inflow, and thereby improve the extraction effect of the coffee.
[0042] As shown in Figures 5 to 6As shown, in one of the embodiments, the extension direction of the liquid inlet channel 221a and the extension direction of each side flow hole 221b have a preset angle, so as to further reduce the flow rate of the water discharged from the side flow hole 221b, avoid the phenomenon that the water discharged from the side flow hole 221b to the distribution disc 210 has a too fast flow rate, and thus the brewing head 10 has a poor water discharge uniformity, and further improve the coffee extraction effect.
[0043] As shown, Figures 5 to 6 in one of the embodiments, the preset angle is 60°-120°, so as to better reduce the flow rate of the water discharged from the side flow hole 221b, and avoid the phenomenon that the water discharged from the side flow hole 221b to the distribution disc 210 has a too fast flow rate, and thus the brewing head 10 has a poor water discharge uniformity.
[0044] As shown, Figures 5 to 6 in one of the embodiments, the diameter of the cross section of the slow flow part 222 gradually increases along the direction away from the connecting part 221, and the distribution disc 210 is arranged at the bottom of the slow flow part 222, so that the water discharged from the side flow hole 221b can be more uniformly sprayed onto the distribution disc 210, and at the same time, water accumulation at the connection between the slow flow part 222 and the distribution disc 210 is avoided, and thus the cleaning difficulty and frequency are reduced.
[0045] The disclosure also provides a brewing head 10 of a coffee machine, which comprises a machine base 100 and the distribution assembly 200 described in any of the above embodiments, and the connecting part 221 is connected to the liquid outlet 110, so that the brewing head 10 can discharge water into the connecting part 221 through the liquid outlet 110.
[0046] As shown, Figures 2 to 6 in one of the embodiments, the connecting part 221 is detachably connected to the liquid outlet 110, so as to facilitate the replacement of the distribution assembly 200, and thus the maintenance difficulty of the coffee machine is reduced.
[0047] As shown, Figures 4 to 6 in one of the embodiments, the connecting end of the connecting part 221 is formed with a threaded connection surface 221c, the machine base 100 is provided with a threaded hole 120 which is in communication with the liquid outlet 110, and the connecting end of the connecting part 221 is arranged in the threaded hole 120 and is threadedly connected with the machine base 100, so as to greatly reduce the replacement difficulty of the distribution assembly 200, and further reduce the maintenance difficulty of the coffee machine.
[0048] As shown, Figures 2 to 3As shown, in one of the embodiments, the brewing head 10 is provided with a water inlet pipe 300, a temperature sensor 400, a heater 500 and a snap-action temperature control switch 600. The water inlet end of the water inlet pipe 300 is used to communicate with the hot water output end of the hot water boiler. The water outlet end of the water inlet pipe 300 is arranged in the threaded hole 120 and sequentially communicates with the liquid outlet 110 and the liquid inlet channel 221a, so that the water inlet pipe 300 can deliver the high-pressure hot water in the hot water boiler to the liquid inlet channel 221a through the liquid outlet 110. The temperature sensor 400 is used to detect the temperature of the heater 500. The temperature sensor 400 is electrically connected with the heater 500. The heater 500 is used to heat the brewing head 10. When the temperature sensor 400 detects that the temperature of the heater 500 is lower than the preset temperature range, the temperature sensor 400 will transmit a first signal to the heater 500. After receiving the first signal, the heater 500 will increase the heating power, so that the temperature of the brewing head 10 is increased. When the temperature sensor 400 detects that the temperature of the heater 500 reaches the preset temperature range, the temperature sensor 400 will transmit a second signal to the heater 500. After receiving the second signal, the heater 500 will reduce the heating power, so that the heater 500 can keep the temperature of the brewing head 10 within the preset temperature range. This effectively reduces the temperature difference between the brewing head 10 and the hot water boiler, so that when the hot water boiler delivers hot water to the liquid outlet 110 of the brewing head 10, the water discharged from the liquid outlet 110 can be kept within the preset temperature range, thereby effectively improving the extraction effect of coffee. The heater 500 is electrically connected with the snap-action temperature control switch 600. The snap-action temperature control switch 600 is used to be disconnected when detecting that the temperature of the heater 500 reaches a dangerous value, so that the power supply circuit of the heater 500 is disconnected. When the temperature of the heater 500 reaches the dangerous value, the snap-action temperature control switch 600 can cut off the power supply circuit of the heater 500, forcibly close the heater 500, thereby greatly improving the use safety of the coffee machine.
[0049] Specifically, the heater 500 and the snap-action temperature control switch 600 are connected in series. When the snap-action temperature control switch 600 detects that the temperature of the heater 500 reaches a dangerous value, the snap-action temperature control switch 600 will be disconnected, so that the power supply circuit of the heater 500 is disconnected, thereby stopping the heater 500 from working, greatly improving the use safety of the coffee machine.
[0050] It should be noted that the hot water boiler is a prior art for heating the liquid, which will not be described here. Further, the temperature control method of the snap-action temperature control switch 600 for turning off when detecting that the temperature of the heater 500 reaches a dangerous value, the temperature control method of the temperature sensor 400 for controlling the heater 500 to increase the heating power when detecting that the temperature of the heater 500 is lower than the preset temperature range, and the temperature control method of the temperature sensor 400 for controlling the heater 500 to reduce the heating power when detecting that the temperature of the heater 500 reaches the preset temperature range are all prior arts, and the present application only protects the connection relationship of the above elements.
[0051] As shown in Figures 2 to 3 one of the embodiments, the brewing head 10 further comprises a temperature compensation sensor 700, and the base 100 is further provided with a mounting hole 130, and the temperature compensation sensor 700 is arranged in the mounting hole 130 and fixedly connected with the base 100, so as to detect the temperature of the water on the flow distribution disc 210; the temperature compensation sensor 700 is electrically connected with the hot water boiler, so that when the temperature compensation sensor 700 detects that the temperature of the water on the flow distribution disc 210 is lower than the preset temperature range, the temperature compensation sensor 700 will transmit a third signal to the hot water boiler, and the hot water boiler will increase the heating power after receiving the third signal, so that the temperature of the liquid in the hot water boiler is increased; and when the temperature compensation sensor 700 detects that the temperature of the water on the flow distribution disc 210 reaches the preset temperature range, the temperature compensation sensor 700 will transmit a fourth signal to the hot water boiler, and the hot water boiler will reduce the heating power after receiving the fourth signal, so that the temperature of the liquid in the hot water boiler can be maintained within the preset temperature range, so that the temperature compensation sensor 700 can play a temperature compensation role, thereby improving the extraction effect of the coffee machine on the coffee.
[0052] It should be noted that the temperature control method of the temperature compensation sensor 700 for controlling the hot water boiler to increase the heating power when detecting that the temperature of the water on the flow distribution disc 210 is lower than the preset temperature range, and the temperature control method of the temperature compensation sensor 700 for controlling the hot water boiler to reduce the heating power when detecting that the temperature of the water on the flow distribution disc 210 reaches the preset temperature range are all prior arts, and the present application only protects the connection relationship of the above elements.
[0053] As shown in Figures 1 to 2 one of the embodiments, the outer peripheral wall of the brewing head 10 is further provided with an anti-scald sleeve 800, so as to avoid the phenomenon that the user is scalded due to touching the brewing head 10 during the operation of the coffee machine, and the anti-scald sleeve 800 also plays a protection role for the brewing head 10.
[0054] In the present embodiment, the anti-scald sleeve 800 is a silica gel sleeve, so that the anti-scald sleeve 800 has a better temperature insulation effect.
[0055] Compared with the prior art, the present disclosure has at least the following advantages:
[0056] The brewing head 10 described above, since the connecting portion 221 is used for connecting to the liquid outlet 110, the connecting portion 221 is provided with a liquid inlet channel 221a and a plurality of side flow holes 221b, each side flow hole 221b is communicated with the liquid outlet 110 through the liquid inlet channel 221a, and the plurality of side flow holes 221b are arranged along the outer circumferential side of the connecting portion 221 and are connected to the bottom of the connecting portion 221, the slow flow portion 222 is provided with a slow flow groove 222a, the slow flow groove 222a is communicated with the liquid inlet channel 221a, the distribution disc 210 is arranged around and fixed to the outer circumferential wall of the slow flow portion 222, and the distribution disc 210 is located below the side flow hole 221b, so that when the pressure of the water discharged from the liquid outlet 110 into the liquid inlet channel 221a is too high, the slow flow groove 222a can effectively buffer and reduce the pressure of the high-pressure water in the liquid inlet channel 221a, and the water after buffering is discharged from the side flow hole 221b, so that the flow rate of the water discharged from the side flow hole 221b is greatly reduced, avoiding the phenomenon that the uniformity of the water discharge amount is poor due to the too fast flow rate of the water sprayed from the side flow hole 221b, and further making the water discharged from the side flow hole 221b be able to be uniformly sprayed on the distribution disc 210, and the water on the distribution disc 210 is uniformly sprayed on the coffee powder through each distribution hole 211, greatly improving the uniformity of the water discharge amount of the brewing head 10, thereby effectively improving the extraction effect of the coffee.
[0057] The above-described embodiments only express several embodiments of the present disclosure, and the description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the disclosed patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present disclosure, a number of modifications and improvements can be made, which are within the scope of the present disclosure. Therefore, the protection scope of the present disclosure patent should be subject to the appended claims.
Claims
1. A diversion assembly for connecting to the liquid outlet of the base of the brewing head, comprising: A flow distribution plate, wherein a plurality of flow distribution holes are evenly formed on the flow distribution plate; The characteristic feature is that the flow splitting assembly further includes a flow splitting element, the flow splitting element comprising: A connecting portion, used for connecting to the liquid outlet, the connecting portion having a liquid inlet channel and a plurality of side flow holes, each of the side flow holes being connected to the liquid outlet through the liquid inlet channel, and the plurality of side flow holes being arranged along the outer periphery of the connecting portion; and A flow-retarding section is connected to the bottom of the connecting section. The flow-retarding section has a flow-retarding groove, which is connected to the liquid inlet channel. The flow-dividing plate surrounds and is fixed to the outer peripheral wall of the flow-retarding section. The flow-dividing plate is located below the side flow hole.
2. The shunt component according to claim 1, characterized in that, A plurality of the said side flow holes are spaced apart along the outer periphery of the connecting portion; and / or, The connecting portion and the flow-retarding portion are integrally formed; and / or... The diameter of the liquid inlet channel is larger than the diameter of each of the side flow holes.
3. The shunt component according to claim 1, characterized in that, The extension direction of the liquid inlet channel has a preset angle with the extension direction of each of the side flow holes.
4. The shunt component according to claim 3, characterized in that, The preset included angle is 60°~120°.
5. The shunt component according to claim 1, characterized in that, The diameter of the cross-section of the flow-retarding section gradually increases in the direction away from the connecting part, and the flow-dividing plate is disposed at the bottom of the flow-retarding section.
6. A brewing head for a coffee machine, characterized in that, It includes a base and a diversion assembly as described in any one of claims 1 to 5, wherein the connecting portion is connected to the liquid outlet.
7. The brewing head according to claim 6, characterized in that, The connecting part is detachably connected to the liquid outlet.
8. The brewing head according to claim 7, characterized in that, The connecting end of the connecting part has a threaded connecting surface, and the base has a threaded hole communicating with the liquid outlet. The connecting end of the connecting part is disposed in the threaded hole and is threadedly connected to the base.
9. The brewing head according to claim 8, characterized in that, The brewing head is equipped with a water inlet pipe, a temperature sensor, a heater, and a snap-action temperature control switch. The inlet end of the water inlet pipe is connected to the hot water output end of the hot water boiler, and the outlet end of the water inlet pipe passes through the threaded hole and is connected to the liquid outlet and the liquid inlet channel in sequence. The temperature sensor is used to detect the temperature of the heater and is electrically connected to the heater. The heater is used to heat the brewing head and is electrically connected to the snap-action temperature control switch. The snap-action temperature control switch is used to disconnect when the temperature of the heater reaches a dangerous value.
10. The brewing head according to claim 9, characterized in that, The brewing head also includes a temperature compensation sensor, and the base is provided with a mounting hole. The temperature compensation sensor passes through the mounting hole and is fixedly connected to the base for detecting the water temperature on the distribution plate; the temperature compensation sensor is used for electrical connection with the hot water boiler; and / or, The outer peripheral wall of the brewing head is also provided with a scalding sleeve.