KR101505653B1 - Apparatus for extracting quantity of water drip coffee - Google Patents

Abstract

A mass extraction device for water drip coffee is disclosed. An apparatus for mass extraction of water drip coffee according to the present invention comprises: an aqueous tank for storing a purified water at room temperature; The purified water stored in the purified water tank is forcibly supplied by the purified water supply pump and stored at a predetermined pressure, has a predetermined length, and two or more supply pipes are arranged at equal intervals, Pressure tanks; An extraction tube formed in a hollow tube structure to receive the coffee powder and the upper region selectively coupled to the upper coupling device; A lower coupling device, which is selectively coupled to the lower end region of the extraction pipe, is provided on the upper surface of the lifting and lowering member facing the pressure tank, in a number corresponding to the number of the upper coupling devices, Wherein the inlet pipe is connected to the extract liquid transfer pipe and the upper region of the extraction pipe coupled to the lower coupling device is coupled to or separated from the upper coupling device, An extracting tube mounting part having a driving part for raising and lowering the descending member; And a temporary storage tank for temporarily storing the coffee extract liquid transferred from the extract liquid transfer pipe. According to the present invention, by using a constant purified water at room temperature, a plurality of supply pipes are installed in one pressure tank, and extraction pipes are selectively coupled to each supply pipe to simultaneously extract coffee, It is possible to rapidly extract the coffee components and thereby extract the coffee without modifying the oil and the essence of the coffee. In addition, since the coffee is extracted through a plurality of extracting pipes, the effect of mass extraction in a short time can be obtained .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a water extracting apparatus for extracting water,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a water extracting apparatus for extracting water by using cold water, and more particularly, to a water extracting apparatus for extracting a large amount of drip coffee by using hot water or cold water .

Generally, bean coffee is a preference drink made from coffee bean, which is a seed of coffee tree fruit. There are about 40 kinds of coffee, but cultivated is arabica, Robusta (Congo species), Ribery radish, Species, and the shape and characteristics of each plant are very different and there are many differences in quality.

The beverage using the coffee beans has been popularized by the 15th century Muslim ruler Dabani since drinking Persian style coffee, and it has been increasingly demanding industrial products related to coffee, Related industries and related industries are increasing rapidly.

The production of coffee beverages using the coffee beans is largely divided into instant coffee and coffee beans. Also, the coffee beans include drip type and espresso type depending on the extraction method from the coffee bean.

Particularly, espresso refers to a method of extracting coffee in a short time by adding high-pressure hot water to finely pulverized coffee beans and coffee extracted through such a method.

The apparatus for extracting espresso coffee includes a filter unit (pota filter-porta filter) for containing coffee ground beverages, and a boiler for supplying hot water. The hot water is supplied to the coffee beans .

Various types of espresso coffee extracting apparatuses are known, such as a coffee shop, an industrial company, a meeting room, and a home.

On the other hand, factors that determine the flavor of espresso coffee include the type of coffee bean, degree of roasting of coffee bean, and particle size. In addition to the above factors, the temperature and pressure of the hot water when extracting espresso coffee from the coffee extracting device have a large influence on the city. For example, a conventional coffee extracting apparatus extracts espresso coffee by applying hot water having a temperature of about 90 DEG C and a pressure of 8 to 10 kg / cm < 2 >. However, the conventional espresso coffee extracted using hot water has a problem in that the flavor of the espresso coffee extracted due to oxidation or deterioration of the components contained in the coffee itself or volatilization of the volatile components is lowered.

As a method for solving the above problems, a water drip extraction method of extracting coffee using cold water has been proposed. The water drip extraction method is a structure in which cold water or hot water is placed on the upper part, a filter in which coffee powder is accommodated in the lower part, and a storage container in which the extracted coffee is stored is arranged in the lower part. And gradually extracted.

Such a drip type extraction method is able to maintain the flavor of the coffee itself with little caffeine by allowing it to be extracted naturally for a long time without forcibly extracting it by applying heat or pressure as compared with the espresso extraction method described above.

However, since such a drip-type extraction method takes a very long time for extracting coffee, it has been practically impossible to mass-produce and use it commercially.

As a means for solving such a problem, Korean Patent Registration No. 10-0920237 (Publication date: 2009.10.05) is disclosed. 1 and 2, the coffee extracting apparatus of this prior art includes a main body 10, a cold water supply source 11 provided inside the main body 10 to provide cold water, a cold water supply source 11, A filter unit 20 which is detachably provided in the filter unit 20 and accommodates the ground coffee beans and extracts coffee from the coffee beans; And a pressure holding unit (200) for holding the coffee beans. The pressure holding unit 200 includes a housing 210 detachably coupled to the outlet of the filter unit 20, a takeout member 220 communicating with the housing 210 to discharge the coffee, A plurality of grooves 233 are formed on the surface so that the minimum flow rate of coffee can pass when the outlet 23 is in close contact with the outlet 23, An elastic supporting member 240 accommodated in the housing 210 and elastically urging the opening and closing member 230 in a direction in which the opening and closing member 230 is in close contact with the outlet 23, .

However, such conventional coffee extracting apparatuses are capable of extracting espresso coffee which is excellent in flavor and rich in crema by using cold water, and can also be used as a coffee beverage having low caffeine content, such as decaffeinated coffee However, there is a problem that it is impossible to extract large quantities because only one or two portions can be extracted. That is, the coffee extracting apparatus according to the prior art has a problem in that the coffee contained in the filter is extracted by exposing it to high pressure, and then the coffee powder of one to two cups is again put in the filter, and then the above operation is repeatedly performed .

Korean Patent No. 10-0920237 (Notification Date: October 5, 2009)

It is an object of the present invention to provide a means for extracting a large amount of coffee having a good flavor and low caffeine content in a short time by using a water drip method using room temperature water or cold water.

The above object is achieved according to the present invention by a water tank for storing an integer at room temperature; The purified water stored in the purified water tank is forcibly supplied by the purified water supply pump and stored at a predetermined pressure, has a predetermined length, and two or more supply pipes are arranged at equal intervals, Pressure tanks; An extraction tube formed in a hollow tube structure to receive the coffee powder and the upper region selectively coupled to the upper coupling device; A lower coupling device, which is selectively coupled to the lower end region of the extraction pipe, is provided on the upper surface of the lifting and lowering member facing the pressure tank, in a number corresponding to the number of the upper coupling devices, And the upper end region of the extraction tube is connected to the lower portion of the extraction tube in a state where the lower end region of the extraction tube is mounted on the lower coupling apparatus, An extraction tube mounting part having a driving part for raising and lowering the lifting and lowering part to be coupled to or removed from the upper coupling device; And a temporary storage tank for temporarily storing the coffee extract liquid transferred from the extract liquid conveying pipe.

The pressure tank may be provided with a pressure sensor for sensing the internal pressure and a pressure gauge for externally displaying the internal pressure.

Wherein the upper coupling device comprises: a first solenoid valve configured to supply or block the supply of purified water supplied from the pressure tank and coupled to the supply pipe; A backflow prevention valve coupled to a lower portion of the first solenoid valve to block reverse flow of the purified water supplied to the extraction pipe; And an upper connecting member having an upper insertion portion which is opened to the lower side so as to be inserted upward by moving the upper end region of the extraction pipe upwardly and in which an airtight holding packing is provided to be connected to the lower portion of the backflow prevention valve, The apparatus includes a filter mounting member having a lower insertion portion opened upward to insert a lower end region of the extraction tube downwardly and inserted therein, and a filtering filter disposed therein; And a second electromagnetic valve connected to the lifting and lowering member to be connected to the inflow pipe, configured to discharge the coffee extract liquid extracted by the purified water supplied to the extracting pipe to the inflow pipe or shut off the discharge.

The extraction tube and the filter mounting member may be coupled in a screw-fastening structure.

The upper coupling device feeds the purified compressed air to the upper portion of the extraction pipe to forcibly discharge moisture contained in the coffee powder and water remaining between the coffee powders to extract pneumatic extraction Further comprising: a first compressor for generating compressed air; An air filter for filtering the compressed air supplied from the first compressor; A first air supply pipe having one end coupled to the upper connecting member to supply air passing through the air filter between the check valve and the extraction pipe; And a third solenoid valve installed in the first air supply pipe for opening and closing the first air supply pipe to supply and shut off the purified compressed air.

The pressure tank is provided with compressed air supply means for applying a predetermined air pressure to the purified water stored in the pressure tank when the purified water supply pump is not in operation so that the purified water is discharged to the respective supply pipes at a uniform pressure The compressed air supply means includes a fourth solenoid valve for opening and closing purified water supplied to the purified water supply pipe connecting the purified water supply pump and the pressure tank; A second air supply pipe branched from the purified water supply pipe between the fourth solenoid valve and the pressure tank; And a second compressor connected to the second air supply pipe for generating compressed air.

According to the present invention, by using a constant purified water at room temperature, a plurality of supply pipes are installed in one pressure tank, and extraction pipes are selectively coupled to each supply pipe to simultaneously extract coffee, It is possible to rapidly extract the coffee component while extracting the coffee without the deformation of the oil and the essence of the coffee. In addition, since the coffee is extracted through several extraction pipes, the water drip coffee can be extracted in a short time It is possible to provide an effect that can be achieved.

According to the present invention, since the pressing force of the purified water can be adjusted according to the distribution stage of the coffee, that is, the degree of roasting of the coffee, the effect of extracting the coffee with the extraction pressure suited to the characteristics of the coffee can be provided.

1 is a schematic diagram showing a conventional coffee extracting apparatus.
Fig. 2 is an enlarged sectional view showing the pressure holding unit of the coffee extracting apparatus shown in Fig. 1. Fig.
3 is a schematic block diagram showing a mass extracting apparatus for a water drip coffee according to a first embodiment of the present invention.
4 is a partially enlarged cross-sectional view showing an extraction tube of the mass extraction apparatus of the water drip coffee shown in Fig.
FIG. 5 is a schematic block diagram for explaining the control unit of the mass extracting apparatus of the water drip coffee shown in FIG. 3; FIG.
6 is a schematic block diagram showing a mass extracting apparatus for a water drip coffee according to a second embodiment of the present invention.
7 is a schematic block diagram showing a mass extraction apparatus for a water drip coffee according to a third embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

3 is a schematic diagram showing a mass extracting apparatus for extracting water drip coffee according to the first embodiment of the present invention, and Fig. 4 is a schematic view showing the extraction apparatus of the mass extracting apparatus of the water drip coffee shown in Fig. Fig. 5 is a schematic block diagram for explaining the control unit of the mass extracting apparatus of the water drip coffee shown in Fig. 3; Fig.

As shown in FIG. 3 and FIG. 5, the apparatus for mass-extracting water drip coffee according to the present invention is characterized in that water for extracting coffee is purified by using water at room temperature without heating the water, A purified water tank 10 for storing purified water at a room temperature and a purified water tank 10 forcibly supplied with purified water by a purified water supply pump 20, A pressure tank 30 having a predetermined length and two or more supply pipes 32 arranged at regular intervals and the supply pipe 32 being provided with an upper coupling device 40, (60) which is formed in a structure and receives the coffee powder and in which the upper region (62) is selectively coupled to the upper joining device (40), and an extraction pipe On the upper surface, the lower end region 64 of the extraction tube 60 is selectively The lower coupling device 50 coupled to the lower coupling device 50 is provided at a number corresponding to the number of the upper coupling devices 40 and an inlet pipe 74 connected to the lower coupling device 50 is provided inside the lifting and lowering device 72, Each of the inlet pipes 74 is connected to the extract liquid transfer pipe 76 and the lower end region 64 of the extraction pipe 60 is attached to the lower coupling device 50, And a driving unit 78 for raising and lowering the lifting member 72 so that the upper region 62 of the lifting member 60 is selectively coupled to or disconnected from the upper engaging device 40 And a temporary storage tank 80 for temporarily storing the coffee extract liquid transferred from the extract liquid transfer pipe 76.

Each of these components will be described in more detail.

The purified water tank (10) is for storing a constant-temperature or cold water, and may include an internal filter.

The purified water supply pump 20 is provided on the purified water supply pipe 38 for supplying the purified water stored in the purified water tank 10 to the pressure tank 30 through the purified water supply pipe 38 at a predetermined pressure.

The pressure tank 30 is formed in a cylindrical shape having a predetermined length and is configured to store the purified water forcibly supplied by the purified water supply pump 20 at a predetermined pressure. The long lengthwise direction is for extracting a large amount of coffee by providing a plurality of extraction pipes 60. Two or more supply pipes 32 are arranged at equal intervals on one side of the pressure tank 30 in the longitudinal direction. Each of the supply pipes 32 is installed in a required number. In order to extract a large amount of coffee, a plurality of supply pipes 32 may be installed. Further, in each of the supply pipes 32, a separate valve may be provided to prevent the purified water from leaking when not in use.

The pressure tank 30 is provided with a pressure sensor 34 for sensing the internal pressure and a pressure gauge 36 for externally displaying the internal pressure. This is for controlling the operation of the purified water supply pump 20 based on the pressure inside the pressure tank 30. In addition, the pressure tank 30 is provided with a safety valve for automatically discharging the purified water to lower the pressure when the internal pressure reaches the set value pressure.

The extraction tube 60 is formed in a hollow tube structure and is formed to receive the coffee powder. A separate filter, for example, water such as water is passed through the upper end region 32 and the lower end region 34 of the extracting tube 60 to prevent the coffee powder contained therein from leaking, A filter may be provided for blocking off. Or a cap member may be provided. The extraction pipe 60 is connected to the upper joining device 40 by the upward movement of the lifting and lowering member 72 in a state where the lower end region 34 is coupled to the lower joining device 50. [ Respectively.

The extraction tube mounting portion 70 is configured to selectively connect the upper region 62 of the extraction tube 60 to the upper coupling device 40 in a state where the extraction tube 60 is mounted on the lower coupling device 50 The lower end region 64 of the extraction pipe 60 is selectively coupled to the upper surface of the lifting member 72 facing the one side in the longitudinal direction of the pressure tank 30 The lower coupling device 50 is provided at a number corresponding to the number of the upper coupling devices 40, respectively. The inlet and outlet pipes 74 and 74 are connected to the lower and upper coupling devices 50 and 72 respectively and the inlet and outlet pipes 74 and 74 are connected to the extract and liquid feed pipe 76, And a driving unit 78 for moving the lifting member 72 up and down.

The ascending and descending members 72 are arranged such that the outflow tubes 74 are spaced apart from each other at a predetermined interval and each of the outflow tubes 74 is connected to the extract liquid transfer pipe 76 inside the ascending and descending member 72, .

The driving unit 78 is provided between the base plate and the up and down member 72 which are formed of an air cylinder or a rack and a pinion and are installed on the floor and raise and lower the lifting member 72 toward the pressure tank 30 Or down.

Between the base plate and the lifting and lowering member 72, guide means (not shown) for guiding the lifting or lowering operation of the lifting and lowering member 72 is provided.

Each extraction tube 60 can be connected to or disconnected from the supply tube 32 at the same time by the extraction tube mounting portion 70 constructed as described above.

In the present embodiment, the extraction tube mounting portion 70 and the pressure tank 30 are arranged in the upward and downward directions. However, the present invention is not limited thereto and may be arranged in the horizontal direction. This is possible because the mass extracting apparatus for water drip coffee according to the present invention is configured to pass the purified water to the extraction pipe 60 at a predetermined pressure.

The upper coupling device 40 is for supplying purified water to the extraction pipe 60 by connecting the supply pipe 32 and the upper end region 32 of the extraction pipe 60, A first solenoid valve 42 connected to the supply pipe 32 and adapted to supply or block the supply of purified water to the supply pipe 32 to prevent the purified water supplied to the extracting pipe 60 from flowing back to the supply pipe 32, A backflow preventing valve 44 coupled to a lower portion of the valve 42 and an upper region 62 of the extracting tube 60 are opened downward so as to be inserted upward, And an upper connecting member 46 having an upper inserting portion 46A and coupled to a lower portion of the check valve 44. [

The first solenoid valve 42 may be configured such that its case is coupled to the supply pipe 32, but may be used in a state in which the first solenoid valve 42 is installed inside the case 41 of the hollow tube type as in the present embodiment. The case 41 is coupled to the supply pipe 32 by a flange structure.

The backflow prevention valve 44 is a valve for preventing the purified water supplied to the extraction pipe 60 from flowing back toward the supply pipe 32 and is installed in the case 41 described above.

The upper connecting member 46 is formed in the shape of a hollow tube so that the upper region is coupled to the lower region of the case 41 in a fastening structure and the upper insertion portion 46A is formed at the lower portion. An airtight packing 45 is installed inside the upper inserting portion 46A and the inlet has a structure in which the upper end region 62 of the extracting tube 60 is easily inserted. On the other hand, a stepped portion is formed in the inner intermediate region of the upper connecting member 46. This step has a function for seating the gas tight packing 45 and a function for bringing the lower end of the case 41 into close contact with the gasket 41. Packs can be provided between the lower end of the case 41 and the step.

The lower coupling device 50 is formed with a lower insertion portion 52A opened upward so that the lower end region 64 of the extraction pipe 60 is moved downwardly and is provided with a filtration filter 54 therein The filter attachment member 52 and the coffee extract liquid extracted by the purified water supplied to the extraction pipe 60 are discharged to the inflow pipe 74 or shut off the discharge to be connected to the inflow pipe 74, And a second solenoid valve (54) coupled to the second solenoid valve (72).

The second solenoid valve 54 is installed inside the stationary case 54A as shown in Fig. 4 and the stationary case 54A is fixed to the ascending and descending member 72. Fig. The fixed case 54A has a through hole 54B formed therein, an inlet pipe 74 connected to the lower portion thereof, and a second electromagnetic valve 54 disposed therein. Of course, the second solenoid valve 54 itself may be installed in the inflow pipe 74, but a fixed case 54A is used in order to realize a more stable installation structure.

The lower portion of the filter mounting member 52 is connected to the fixing case 54A in a fastening structure and a filtration filter 54 is disposed therein. ) Are coupled to each other by a fitting or fastening structure.

The filter mounting member 52 and the fixed case 54A described above are configured such that the coffee extract liquid extracted from the extraction pipe 60 is smoothly discharged to the inflow pipe 74 through the second solenoid valve 54. [

The inner lower portion of the filter mounting member 52 is formed in a funnel shape so that the extract liquid can be smoothly discharged.

The filtration filter 54 is for preventing the coffee powder from escaping from the extraction tube 60 like the extract liquid during the coffee extraction.

The temporary storage tank 80 is for temporarily storing the coffee extract liquid transferred from the extract liquid transfer pipe 76 and may further include an additional filtration device.

On the other hand, the first solenoid valve 42, the second solenoid valve 54, and the purified water supply pump 20 are controlled by the controller 90, and in particular, based on the detection signal of the pressure sensor 34, (20) is controlled. Then, the extraction device is configured to be sequentially operated by an operation button (not shown) of the control panel.

The operation of the mass extracting apparatus constructed as above will be described.

The state in which the ascending and descending member 72 is lowered by the lowering operation of the driving unit 78 is a state in which the upper region 62 of the extracting tube 60 is separated from the upper inserting unit 46A of the upper joining apparatus 40 .

Therefore, after filling coffee powder into the extracting tube 60, the operator inserts the lower end region 64 into the lower insertion portion 52A of the filter mounting member 52 and joins them.

At this time, the filtration filter 52B is in a state in which it is installed in the filter mounting member 52.

When the driving unit 78 is operated to move up and down, the lifting member 72 is lifted so that the upper region 62 is inserted into the upper insertion portion 46A, (46).

When the extraction pipe 60 is installed between the upper joining device 40 and the lower joining device 50 in this process, the extraction start button is pressed to start the extraction of the coffee.

First, when the extraction start button is pressed, the controller 90 closes the first solenoid valve 42 and the second solenoid valve 54, and then operates the purified water supply pump 20.

By the operation of the purified water supply pump 20, the purified water is supplied to the pressure tank 30 at a predetermined pressure. At this time, the pressure sensor 34 senses the pressure inside the pressure tank 30 and transmits it to the control unit 90. When the pressure in the pressure tank 30 is equal to or higher than a predetermined value, Or the operation of the purified water supply pump 20 is stopped.

When the purified pressure in the pressure tank 30 rises to a predetermined pressure in this process, the controller 90 opens the first solenoid valve 42 and the second solenoid valve 54.

When the first solenoid valve 42 and the second solenoid valve 54 are opened, the purified water is extracted through the filtration filter 52B together with the effective components in the coffee powder while passing through the extraction tube 60. [

The extracted coffee extract is passed through the second solenoid valve 54, collected through the inlet pipe 74 into the extract liquid transfer pipe 76, and stored in the temporary storage tank 80.

In this way, in the state where a plurality of extraction pipes 60 are disposed between the lifting member 72 and the pressure tank 30, the purified water in the pressure tank 30 is supplied to each extraction pipe 60 at a constant pressure So that it is possible to extract a large amount of coffee from each of the extraction tubes 60.

Particularly, by supplying the purified water at a normal temperature state without heating, a large amount of coffee can be extracted in a pure state without changing the state of the coffee.

6 is a schematic block diagram showing a mass extracting apparatus for a water drip coffee according to a second embodiment of the present invention.

6, the apparatus for mass extraction of water drip coffee according to the second embodiment supplies refined compressed air to the upper portion of the extraction pipe 60, thereby separating the moisture contained in the coffee powder and the coffee powder Except that the upper joining device 40 is provided with the pneumatic extraction means 100 for finally extracting the coffee components by forcibly discharging the water remaining in the upper joining device 40. [

The pneumatic extraction means 100 includes a first compressor 110 for generating compressed air, an air filter 120 for filtering the compressed air supplied from the first compressor 110, an air filter 120 A first air supply pipe 130 whose one end is coupled to the upper connection member 46 so as to supply air that has passed through between the check valve 44 and the extraction pipe 60; And a third solenoid valve 140 controlled by the second solenoid valve 90 to open and close the first air supply pipe 130 to supply and shut off the purified compressed air.

The pneumatic extraction means 100 having such a structure is for finally extracting the components contained in the coffee powder of the extraction pipe 60 at the time when the coffee extraction is completed, So that the compressed air passes through the extracting pipe 60 and blows the moisture and the coffee components contained in the coffee powder particles toward the lower end region 64 together. At this time, the controller 90 closes the first solenoid valve 42.

In this way, the coffee components contained in the coffee powder can be completely extracted by compressed air.

Meanwhile, in the accompanying drawings, FIG. 7 is a schematic configuration diagram showing a mass extracting apparatus for a water drip coffee according to a third embodiment of the present invention.

As shown in FIG. 7, the apparatus for massively extracting water drip coffee according to the third embodiment is characterized in that when the purified water supply pump 20 is not operated, a predetermined air pressure is applied to the purified water stored in the pressure tank 30 And the compressed air supply means 200 for allowing the purified water to be discharged to the respective supply pipes 32 at a uniform pressure is the same as the above-described embodiments.

The compressed air supply means 200 includes a fourth solenoid valve 210 for opening and closing the purified water supplied to the purified water supply pipe 38 connecting the purified water supply pump 20 and the pressure tank 30, A second air supply pipe 220 branched from the purified water supply pipe 38 between the solenoid valve 210 and the pressure tank 30 and a second compressor connected to the second air supply pipe 220 for generating compressed air, (230).

The compressed air supply means 200 uniformly applies a predetermined pressure to the purified water supplied to the pressure tank 30 so as to be discharged into each supply pipe 32. For this, when the compressed air is supplied to the second air supply pipe 220 after the fourth electromagnetic valve 210 is closed, the compressed air is supplied with a constant pressure to the purified water in the pressure tank 30.

Accordingly, the constant can be discharged through the respective supply pipes 32 at a constant pressure.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

10: purified water tank 20: purified water supply pump
30: pressure tank 32: supply pipe
34: pressure sensor 36: pressure gauge
38: purified water supply pipe 40: upper coupling device
41: Case 42: First solenoid valve
44: Non-return valve 45: Packing for airtightness
46: upper connection member 46A: upper insertion portion
50: lower coupling device 52: filter mounting member
52A: lower insertion portion 52B: filtration filter
54: second solenoid valve 54A: fixed case
60: Extraction tube 62: upper region
64: lower end area 70: extraction tube mounting part
72: rising and falling member 74: inflow pipe
76: Extract liquid conveying pipe 78:
80: temporary storage tank 90: control unit
100: pneumatic extracting means 110: first compressor
120: air filter 130: first air supply pipe
140: third solenoid valve 200: compressed air supply means
210: fourth electromagnetic valve 220: second air supply pipe
230: Second compressor

Claims (6)

A purified water tank 10 for storing purified water at room temperature;
The purified water stored in the purified water tank 10 is forcibly supplied by the purified water supply pump 20 and stored at a predetermined pressure and has a predetermined length and two or more supply pipes 32 are arranged at regular intervals, The supply pipe (32) includes a pressure tank (30) provided with an upper coupling device (40);
An extraction tube (60) formed in a hollow tube structure to receive the coffee powder and an upper region (62) selectively coupled to the upper coupling device (40);
The lower coupling device 50 in which the lower end region 64 of the extraction pipe 60 is selectively coupled to the upper surface of the ascending and descending member 72 facing the pressure tank 30 is inserted into the upper coupling device 40, And an inlet pipe 74 connected to the lower coupling device 50 is provided in each of the ascending and descending members 72. Each of the inlet pipes 74 is connected to an outlet The upper region 62 of the extraction pipe 60 is connected to the upper portion 62 of the extraction pipe 60 in a state where the lower end region 64 of the extraction pipe 60 is mounted to the lower coupling device 50, (70) having a driving part (78) for moving up and down the lifting and lowering member (72) so as to be coupled to or detached from the coupling device (40); And
And a temporary storage tank (80) for temporarily storing the coffee extract liquid transferred from the extract liquid transfer pipe (76)
Mass extraction device of water drip coffee. The method according to claim 1,
In the pressure tank 30,
Characterized in that a pressure sensor (34) for sensing the internal pressure and a pressure gauge (36) for externally indicating the internal pressure are provided.
Mass extraction device of water drip coffee. The method according to claim 1,
The upper coupling device (40)
A first solenoid valve (42) configured to supply or block the supply of purified water supplied from the pressure tank (30) and coupled to the supply pipe (32); A backflow prevention valve (44) coupled to a lower portion of the first solenoid valve (42) to block reverse flow of purified water supplied to the extraction pipe (60); And an upper inserting portion 46A having an upper portion 62 of the extracting tube 60 opened upward to be inserted upward and having a hermetic packing 45 provided therein, And an upper connecting member 46 coupled to a lower portion of the upper connecting member 46,
The lower coupling device (50)
A filter mounting member 52 formed with a lower insertion portion 52A opened upward to insert the lower end region 64 of the extraction pipe 60 downward and inserted therein and a filtering filter 52B disposed therein; Descending member (72) is connected to the inflow pipe (74) so as to discharge the coffee extract liquid extracted by the purified water supplied to the extracting pipe (60) to the inflow pipe (74) And a second solenoid valve (54) coupled to the second solenoid valve
Mass extraction device of water drip coffee. The method of claim 3,
Characterized in that the extraction tube (60) and the filter mounting member (52) are coupled in a threaded engagement structure.
Mass extraction device of water drip coffee. The method of claim 3,
The upper coupling device (40)
The compressed air is supplied to the upper portion of the extraction pipe 60 to force the moisture contained in the coffee powder and the moisture remaining between the coffee powders to be discharged to finally extract the coffee components. ),
The pneumatic extraction means (100)
A first compressor (110) for generating compressed air;
An air filter 120 for filtering the compressed air supplied from the first compressor 110;
A first air supply pipe 130 having one end coupled to the upper connection member 46 to supply air passing through the air filter 120 between the check valve 44 and the extraction pipe 60; And
And a third solenoid valve (140) installed in the first air supply pipe (130) for opening and closing the first air supply pipe (130) to supply and shut off the purified compressed air.
Mass extraction device of water drip coffee. 6. The method according to any one of claims 1 to 5,
The pressure tank (30)
The compressed air is supplied to each of the supply pipes 32 at a constant pressure by applying a predetermined air pressure to the purified water stored in the pressure tank 30 when the purified water supply pump 20 is not operated, And a supply means (200)
The compressed air supply means (200)
A fourth solenoid valve (210) installed in the purified water supply pipe (38) connecting the purified water supply pump (20) and the pressure tank (30)
A second air supply pipe (220) branched from the purified water supply pipe (38) between the fourth solenoid valve (210) and the pressure tank (30); And
And a second compressor (230) connected to the second air supply pipe (220) for generating compressed air.
Mass extraction device of water drip coffee.

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