CN215686826U - Coffee machine for brewing espresso coffee - Google Patents
Coffee machine for brewing espresso coffee Download PDFInfo
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- CN215686826U CN215686826U CN202121119865.1U CN202121119865U CN215686826U CN 215686826 U CN215686826 U CN 215686826U CN 202121119865 U CN202121119865 U CN 202121119865U CN 215686826 U CN215686826 U CN 215686826U
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Abstract
A coffee machine for brewing Italian coffee belongs to the technical field of automatic vending machine structure and function. The scheme is as follows: the method comprises the following steps: prefabricated water tank, boiler, extraction machine, electromagnetic pump, flowmeter, prefabricated water tank with the flowmeter is connected, the flowmeter with the electromagnetic pump is connected, the electromagnetic pump with the boiler is connected, the boiler with the extraction machine is connected. The coffee machine for brewing Italian coffee has the advantages that the combination of the boiler and the extraction machine provides high-temperature and high-pressure water for grinding and extraction, so that the problem of light taste of the traditional coffee is effectively solved, and the system can operate under stable pressure; the safe and stable operation of the equipment can be ensured by setting the two-position three-way valve and the water outlet valve.
Description
Technical Field
The utility model belongs to the technical field of automatic vending machine structures and functions, and particularly relates to a coffee machine for brewing Italian coffee.
Background
The coffee that present coffee machine produced is american coffee generally, because the coffee pressure that american coffee extraction pipeline extracted is low, fragrance and not high with the full-bodied, the taste is light, in order to widen the product, make the coffee of high-quality taste and taste, solve the customer's demand to high-quality coffee, need urgently for a coffee machine that can produce the espresso, the espresso needs stronger pressure and higher temperature for the american coffee, system damage is caused easily to this reason, and bring danger.
SUMMERY OF THE UTILITY MODEL
In order to satisfy the above-mentioned needs in the prior art, the present invention provides a coffee machine for brewing espresso, which is stable in its piping system, can provide coffee liquid and hot water, and is pressure-protected.
The technical scheme is as follows:
a coffee machine for brewing espresso, comprising: prefabricated water tank, boiler, extraction machine, electromagnetic pump, flowmeter, prefabricated water tank with the flowmeter is connected, the flowmeter with the electromagnetic pump is connected, the electromagnetic pump with the boiler is connected, the boiler with the extraction machine is connected.
Furthermore, the extraction device also comprises a box body, the prefabricated water tank is positioned at the upper right corner of the box body, the boiler is positioned at the lower left corner of the box body, and the extraction machine is positioned at the front end of the boiler.
Further, the electromagnetic pump comprises an electromagnetic pump A and an electromagnetic pump B, and the electromagnetic pump A and the electromagnetic pump B are connected in parallel between the flowmeter and the boiler.
Further, the flowmeter is connected with the electromagnetic pump through a silicone tube.
Further, the boiler is connected with the electromagnetic pump through a tetrafluoride pipe.
Further, the preset water tank includes: the water tank comprises a tank body, a heating rod A, a water tank cover, a water tank sealing ring and a water level probe, wherein the heating rod A is used for supplying water and heating up, the water tank cover is used for detecting the water level, the heating rod A is arranged at the bottom of the tank body, the water tank cover is arranged above the tank body, the water tank sealing ring is arranged at the joint of the tank body and the water tank cover, and the water level probe and the temperature sensor are arranged inside the tank body.
Furthermore, the prefabricated water tank body is of a five-surface sealing structure with an open top, a water level probe is arranged in the prefabricated water tank body, the cover and a lower tank body are sealed by an M10 flange sealing ring, and a water tank drain pipe is positioned at the bottom of the water tank and connected with a shower head; the overflow pipe is arranged at the side part of the water tank, and the heating rod is arranged at the bottom of the water tank.
Further, still include temperature sensor, prefabricated water tank lateral part and boiler top set up temperature sensor.
Further, the device also comprises a two-position three-way valve, wherein the two-position three-way valve is respectively connected with the extraction machine, the boiler and the wastewater box.
The utility model has the beneficial effects that:
the coffee machine for brewing the Italian coffee provided by the utility model provides high-temperature and high-pressure water for grinding and extraction through the combination of the boiler and the extraction machine, so that the problem of light taste of the traditional coffee is effectively solved, and the system can operate in a stable pressure manner; the safe and stable operation of the equipment can be ensured by setting the two-position three-way valve and the water outlet valve.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the pipe connection of the present invention;
FIG. 3 is a schematic structural view of a boiler according to the present invention;
FIG. 4 is a schematic view of a prefabricated water tank according to the present invention;
FIG. 5 is a piping system diagram of the present invention;
the reference numbers in the figures are as follows: 1-prefabricated water tank, 2-boiler, 3-extraction machine, 4-electromagnetic pump, 5-flowmeter, 6-two-position three-way valve, 7-water outlet valve, 8-heating rod A, 9-heating rod B, 10-water supply pipe, 11-water outlet, 12-hot water outlet, 13-overflow port, 14-coffee outlet, 15-temperature sensor, 16-shower head, 17-water level probe, 18-water inlet pipe phi 6, 19-pressure relief pipe phi 6, 20-overflow pipe phi 12, 21-water outlet pipe phi 6, 22-water inlet tetrafluoride pipe, 23-boiler water discharge pipe phi 6.35, 24-connection extraction machine phi 2, 25-waste water box, 41-electromagnetic pump A, 42-electromagnetic pump B.
Detailed Description
The coffee maker for brewing espresso coffee is further described below with reference to fig. 1-5.
A coffee machine for brewing espresso coffee, comprising: prefabricated water tank 1, boiler 2, extractor 3, electromagnetic pump 4, flowmeter 5, prefabricated water tank 1 with flowmeter 5 is connected, flowmeter 5 with electromagnetic pump 4 is connected, electromagnetic pump 4 with boiler 2 is connected, boiler 2 with extractor 3 is connected.
Further, still include the box, prefabricated water tank 1 is located the box upper right corner, boiler 2 is located the lower left corner of box, extractor 3 is in the boiler front end.
Further, the solenoid pump 4 includes a solenoid pump a41 and a solenoid pump B42, both of which are connected in parallel between the flow meter 5 and the boiler 2, a41 and a B42.
Further, the flow meter 5 is connected with the electromagnetic pump 4 through a silicone tube.
Further, the boiler 2 is connected with the electromagnetic pump 4 through a tetrafluoride pipe.
Further, the preset water tank 1 includes: the water tank comprises a tank body, a heating rod A8 for supplying water for heating, a water tank cover, a water tank sealing ring and a water level probe 17 for detecting the water level, wherein the heating rod A8 is arranged at the bottom of the tank body, the water tank cover is arranged above the tank body, the water tank sealing ring is arranged at the joint of the tank body and the water tank cover, and the water level probe 17 and the temperature sensor 15 are arranged inside the tank body.
Furthermore, the prefabricated water tank 1 body is of a five-surface sealing structure with an open top, the interior of the prefabricated water tank comprises a water level probe 17, the cover and a lower tank body are sealed by an M10 flange sealing ring, and a water tank drain pipe is positioned at the bottom of the water tank and connected with a shower head; the overflow pipe is arranged at the side part of the water tank, and the heating rod is arranged at the bottom of the water tank. The boiler 2 is internally provided with a heating rod B9 for providing high-temperature hot water, a flange sealing ring and a bracket for fixing the water boiler, and the outside of the boiler is adhered with a heat-preservation sponge.
Further, a temperature sensor 15 is also included, and the temperature sensor 15 is arranged at the side of the prefabricated water tank 1 and the top of the boiler 2.
Further, the device also comprises a two-position three-way valve 6, wherein the two-position three-way valve 6 is respectively connected with the extraction machine 3, the boiler 2 and the wastewater box 25.
Furthermore, the boiler also comprises a water outlet valve, and the water outlet valve 7 is positioned on the right side of the boiler.
The method comprises the steps that a preset water tank 1 receives normal-temperature water, a heating rod B9 of the preset water tank 1 preheats the water, the preheated water is pressurized to a boiler 2 through a magnetic pump A41 and an electromagnetic pump B42, the heating rod A8 in the boiler 2 heats the water again, high-temperature and high-pressure water in the boiler 2 is pumped to an extraction machine 3 through a two-position three-way valve 6, and the high-temperature and high-pressure coffee liquid is injected into a paper cup through grinding and extraction of the extraction machine 3.
The pressure relief valve is positioned between the boiler 2 and the electromagnetic pump A41, and when the pressure on the boiler 2 exceeds a set value, the pressure is relieved to the prefabricated water tank 1 through the tetrafluoride tube and the silicone tube by the pressure relief valve and is exhausted to the atmosphere; the tetrafluoro pipe is connected with the boiler 2, and the silicone tube is connected with the prefabricated water tank 1.
The two-position three-way valve 6 is positioned between the extractor 3 and the boiler 2, and when the pressure on the boiler 2 exceeds a set value, the pressure is released to the waste water box 25 through the tetrafluoride tube and the silicone tube by the two-position three-way valve 6 and is discharged to the atmosphere.
The two-position two-way pressure relief water outlet valve is positioned between the boiler 2 and the prefabricated water tank 1, and when the pressure on the boiler 2 exceeds a set value, the pressure is relieved to the prefabricated water tank through the valve through a tetrafluoride tube and a silicone tube and is exhausted to the atmosphere.
The preset water tank 1 receives normal-temperature water, the water is preheated through the heating rod B9 of the preset water tank 1, the preheated water supplies water for the boiler through the electromagnetic pump 4, the water is heated again through the heating rod A8 in the boiler 2, and then the high-temperature high-pressure water in the boiler is changed into high-temperature low-pressure water through the pressure relief water outlet valve to be injected into the paper cup.
A pipeline is led out from the bottom of the prefabricated water tank 1 and connected with a water draining shower head 16 to drain residual water in the water tank.
A hole is reserved in the bottom of the boiler 1 to drain the remaining water in the boiler 1.
The system also comprises a solid-state relay for providing the operation of the Italian coffee brewing pipeline, and the solid-state relay supplies heat in a pulse mode and prevents the water temperature from overshooting.
The flowmeter 5 is connected in the system through a tetrafluoride pipe.
The double electromagnetic pumps 4 are connected between the flow meter 5 and the boiler 2 through silicone tubes.
And a pressure release valve is arranged at the front end of the boiler 2 and connected into the system through a tetrafluoride pipe and a pressure release pipe.
Example 2
As a new embodiment or in addition to embodiment 1.
Water inlet flow of the hot water boiler: the waterway system consists of a 3L preset water tank and a 0.8L hot water boiler, wherein a water level probe is installed on the preset water tank, the preset water tank is sequentially provided with a water shortage level and a water stop level, after the water is started and electrified for the first time, when the water shortage level and the water stop level are not detected at the same time, a water injection program is required to be executed after the preset water tank reaches the water stop level, water can be automatically injected, and manual water injection operation can also be indicated on an interface (water injection logic: a 1# electromagnetic pump, a 2# electromagnetic pump and a hot water valve are simultaneously opened, a 1# electromagnetic pump and a 2# electromagnetic pump and the hot water valve are closed after a flowmeter quantitatively calculates to 0.9L), when a hot water port has water flowing out, the water of the boiler is fully injected, a machine starts to supplement water to the preset water tank after the water stop level is disconnected for 1 second in the water injection process, water is delayed for 3 seconds after the water stop level is connected, water injection, and the water is sequentially circulated until the water injection program is completely executed; the preset water tank water replenishing mode in the cup making process is the same. And after the cup is filled, reporting a water shortage fault if the water level does not reach the water stop level within 30 seconds.
Note: when the water discharging program is executed, the water in the preset water tank must be firstly drained, then the water in the water boiler is drained, and after the water boiler is started up again and powered on, if the water level of the preset water tank is in a water shortage level, the water filling program of the water boiler needs to be executed forcibly (dry burning is prevented).
Water discharge flow of the hot water boiler: the pressure release valve, the 1# electromagnetic pump and the 2# electromagnetic pump are opened simultaneously, the 1# electromagnetic pump and the 2# electromagnetic pump are closed simultaneously after 3 seconds (in order to empty the residual water in the pipeline), and the pressure release valve is closed after 3 minutes (in order to conduct the atmosphere and enable the waterproof pipe to drain water smoothly).
Heating process of the hot water boiler: according to the above conditions, after water injection is completed, the water boiler starts heating until the set temperature, the preset water tank continues to feed water to reach the stop water level, when the water temperature is 2 ℃ lower than the set temperature, pulse type heating (water temperature overshoot prevention) is started, and the CPU controls the on/off duty ratio of the solid-state relay in a PWM (pulse width modulation) mode to indirectly control the heating intensity of the heating rod so that the temperature overshoot is not easily caused after the heating rod reaches the set temperature; when the temperature reaches the set temperature, the pressure release valve, the 1# electromagnetic pump and the 2# electromagnetic pump are synchronously opened for 2 seconds and then closed; when the cup is discharged or the cleaning is finished (the water valve is closed) every time, the pressure release valve, the 1# electromagnetic pump and the 2# electromagnetic pump are synchronously opened for 2 seconds and then closed (residual pressure and water vapor in the hot water boiler are released, and the water outlet precision is guaranteed).
In the cup making process (for freshly ground coffee (coffee valve is opened)), when the temperature is 1 ℃ lower than the set temperature, pulse heating is started (the temperature is maintained within the range of plus or minus 1 ℃ of the set temperature); when the temperature is lower than the set temperature minus 2 ℃, instant beverage or hot water is required to be heated at full speed, whether the temperature reaches the set temperature or not is detected after the cup is opened, and the heating is stopped after the temperature does not reach the set temperature and the temperature is required to reach the set temperature; as long as the temperature is higher than the forced temperature (the function setting has a 'forced heating' item), normal cup making can be carried out, but the freshly ground coffee beverage can be taken out when the temperature reaches the set temperature, and the machine can not make the cup when the temperature is lower than the forced heating temperature (the status bar shows that the machine can not make the cup when the temperature is lower than the forced heating temperature (please wait for a little in the boiler heating), and the cup can be made only when the water temperature is higher than the forced heating temperature. After heating is started, if the temperature does not change within 20 seconds, reporting that the heating fault machine stops running, and waiting for the power supply to be turned off to remove the fault.
The heating process of the preset water tank 1 is as follows: after the hot water boiler finishes heating, the preset water tank is switched to start heating, the set temperature of the preset water tank is defaulted to 45 degrees, the heating is stopped when the temperature is reached, under the standby condition, after the preset water tank 1 is lower than the set default temperature by 3 degrees, the heating is started, if the preset water tank is lower than the default temperature by 3 degrees in the cup beating process, the hot water boiler needs to be preferentially heated, and after the cup beating is finished, the preset water tank is switched to heat (the neutral gear time when the water boiler does not heat is fully utilized to heat and restore the set temperature).
Note: in any case, the boiler 2 and the pre-tank 1 cannot be heated simultaneously (to achieve a total power within 2000 watts).
When hot water is discharged or cleaned, the 1# electromagnetic pump, the 2# electromagnetic pump and the hot water valve are opened simultaneously, the electromagnetic pumps are closed simultaneously after the set water amount is reached, and then the electromagnetic pumps are synchronously switched to the pressure release valves, the 1# electromagnetic pump and the 2# electromagnetic valve to be opened simultaneously for 2 seconds and then closed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (9)
1. A coffee machine for brewing espresso coffee, comprising: prefabricated water tank (1), boiler (2), extractor (3), electromagnetic pump (4), flowmeter (5), prefabricated water tank (1) with flowmeter (5) are connected, flowmeter (5) with electromagnetic pump (4) are connected, electromagnetic pump (4) with boiler (2) are connected, boiler (2) with extractor (3) are connected.
2. The coffee machine for brewing espresso coffee according to claim 1, further comprising a tank, the pre-made water tank (1) being located in the upper right corner of the tank, the boiler (2) being located in the lower left corner of the tank, the extractor (3) being located at the front end of the boiler.
3. Coffee machine for brewing espresso coffee according to claim 1, characterized in that the electromagnetic pump (4) comprises an electromagnetic pump A (41) and an electromagnetic pump B (42), both electromagnetic pumps A (41) and B (42) being connected in parallel between the flow meter (5) and the boiler (2).
4. Coffee machine for brewing espresso coffee according to any one of claims 1 to 3, characterized in that the flow meter (5) is connected to the electromagnetic pump (4) by means of a silicone tube.
5. Coffee machine for brewing espresso coffee according to any one of claims 1 to 3, characterised in that the boiler (2) is connected to the electromagnetic pump (4) through a tetrafluoride tube.
6. Coffee machine for brewing espresso coffee according to claim 1, characterised in that said pre-made water tank (1) comprises: the water tank comprises a tank body, a heating rod A (8) used for supplying water to heat up, a water tank cover, a water tank sealing ring and a water level probe (17) used for detecting the water level, wherein the heating rod A (8) is arranged at the bottom of the tank body, the water tank cover is arranged above the tank body, the water tank sealing ring is arranged at the joint of the tank body and the water tank cover, and the water level probe (17) and a temperature sensor (15) are arranged inside the tank body.
7. The coffee machine for brewing espresso according to claim 1, characterized in that the prefabricated water tank (1) body is a five-face sealed structure with a top open, and includes a water level probe (17) inside, the cover and the lower tank body are sealed by M10 flange seal ring, the water tank discharge pipe is located at the bottom of the water tank and connected with a shower head; the overflow pipe is arranged at the side part of the water tank, and the heating rod is arranged at the bottom of the water tank.
8. The coffee machine for brewing espresso coffee according to claim 1, further comprising a temperature sensor (15), the temperature sensor (15) being provided at the side of the pre-made water tank (1) and at the top of the boiler (2).
9. The coffee machine for brewing espresso coffee according to claim 1, further comprising a two-position three-way valve (6), the two-position three-way valve (6) being connected to the extractor (3), the boiler (2) and the waste water cartridge (25), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121119865.1U CN215686826U (en) | 2021-05-24 | 2021-05-24 | Coffee machine for brewing espresso coffee |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121119865.1U CN215686826U (en) | 2021-05-24 | 2021-05-24 | Coffee machine for brewing espresso coffee |
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| Publication Number | Publication Date |
|---|---|
| CN215686826U true CN215686826U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121119865.1U Active CN215686826U (en) | 2021-05-24 | 2021-05-24 | Coffee machine for brewing espresso coffee |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024153263A1 (en) * | 2023-01-17 | 2024-07-25 | 玛西(北京)国际品牌管理有限公司 | Secondary heating device, constant-voltage and variable-voltage coffee extraction system and control method therefor |
-
2021
- 2021-05-24 CN CN202121119865.1U patent/CN215686826U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024153263A1 (en) * | 2023-01-17 | 2024-07-25 | 玛西(北京)国际品牌管理有限公司 | Secondary heating device, constant-voltage and variable-voltage coffee extraction system and control method therefor |
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