KR200151899Y1 - Safety apparatus of beans coffee extraction for automatic vending machine - Google Patents

Abstract

The present invention relates to a safety device for extracting coffee beans of a vending machine, and in particular, when the extraction cap lifted by the motor covers the upper part of the strained part, supplying the crushed coffee mixed with hot water from the mixing part into the extraction cap to extract the raw liquid And, the screening plate is formed in front of the extraction cap and the filter portion so that the gap between the filter portion and the extraction cap is exposed to the outside, the cover surrounding the inspection port is installed to be assembled and disassembled with screws or the like on the screening plate, When the cover is disassembled, the safety switch that operates to cut off the power of the motor is installed between the cover and the cover plate, so that the extraction cap is not lifted when checking the state of the net in the filtering part. Since coffee is not sold, safety accidents can be prevented.

Description

Safety device for coffee bean extraction of vending machine

1 is a schematic diagram of a vending machine to which the present invention is applied.

Figure 2 is a front sectional view of the extraction device to which the present invention is applied.

Figure 3 is a side cross-sectional view of the extraction device to which the present invention is applied.

* Explanation of symbols for main parts of the drawings

10: extraction device 11: coffee container

12: mixing section 20: extraction cap

30: net 30a: hole

32: pressure part 33: gallbladder

40: blanking plate 41: check hole

42: cover 43: safety switch

The present invention relates to a safety device for extracting coffee beans of a vending machine, and more specifically, to supply the crushed coffee mixed with hot water into the extraction cap to be filtered out of the strainer net, which is extracted when checking the state of the net. The present invention relates to a safety device for brewing coffee beans of a vending machine that prevents a cap from falling and prevents a safety accident.

A vending machine typically mixes powdered coffee (i.e. incident coffee) with hot water and then mixes the prim and sugar to make coffee.

However, since these coffees use powdered instant coffee ingredients, they cannot enjoy the coffee's original taste, that is, the coffee that gives off its aroma.

In view of the above, the present inventors have elected a vending machine that provides ground coffee by mixing ground coffee with hot water, blowing it with high-pressure air, filtering the ground, and then mixing the extracted stock with prim and sugar. There is a bar.

The object of the present invention is to preempt the safety of the vending machine which prevents safety accidents by preventing the extraction cap covering the net from falling down when cleaning the coffee grounds filtered by the mesh of the filtering part or replacing it due to aging. It provides a safety device for coffee extraction.

In order to achieve the above object, the present invention, when the extraction cap is lifted by a motor to cover the upper portion of the filtering portion to supply the crushed coffee mixed with hot water from the mixing portion into the extraction cap to extract the stock solution, the filtering portion and the extraction cap Screening plate is formed in front of the extraction cap and the filtering portion so that the inspection opening is formed to be exposed to the outside, and the cover for auditing the inspection opening is installed so that the cover can be disassembled and assembled with screws, etc., the cover is operated when the cover is disassembled It is characterized in that the safety switch to cut off the power of the motor is installed between the cover and the shielding plate.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a schematic diagram of a vending machine to which the present invention is applied. The present invention is to crush the coffee beans to extract the stock solution (10), a powder coffee container (1) containing powdered coffee that is instant coffee, sugar cans (2) containing sugar and prim, general yulmu, tea, etc. A tea container 3 contained therein, and a mixing container 4 for mixing the raw material contained in these containers with hot water are provided.

That is, the favorite food such as general coffee or tea is mixed in the mixing container 4 with hot water and then placed in the lower cup 5. In addition, the coffee beans according to the present invention is mixed with hot water in the extraction device 10 is then supplied to the mixing container (4) in the filtered state. It is then mixed with the sugar and the prim supplied from the sugar primitive barrel 2 and put in a cup 5.

2 is a front sectional view of an extraction apparatus to which the present invention is applied. In other words, the present invention is a coffee container 11 containing the crushed coffee and the coffee for 1 serving, the mixing unit 12 is mixed with the hot water of the crushed coffee and hot water tank 15 is discharged from the coffee container 11, Extraction cap 20 which is supplied with mixed coffee and hot water mixed in the mixing part 12 and the cap is closed by moving the lower end of the extraction cap 20 toward the filtering part 29 having the mesh 30. Lifting means (23), the pressurizing portion (32) for raising the undiluted solution of the crushed coffee by spraying high pressure air into the sealed extraction cap 20, and the gutter (33) to remove the debris filtered on the net 30 Is provided.

Mixing unit 12 is the coffee is discharged by one person from the coffee container 11 is mixed with hot water of the hot water tank (15). That is, the ground coffee and hot water are mixed as the screw 14 driven by the motor 13 is rotated.

Extraction cap 20 is open at the bottom. In addition, the lifting bar (27a) of the cap lifting means 23 is coupled to both sides of the upper center. Then, the coffee inlet 21 through which the ground coffee mixed with hot water flows into the upper outer circumferential surface, and the air inlet 22 through which the high pressure air of the pressurizing unit 32 flows.

The cap lifting means 23 is engaged with the motor 24, the deceleration part 25 for decelerating the rotation of the motor 24, the screw rod 27 to which the decelerated motor 24 rotational force is transmitted, and the screw rod 27. Lifting plate 26, the upper and lower ends are coupled to both ends of the elevating plate 26, the lower end is coupled to the lifting bar (27a), and elevating guide plate (28) for guiding the lifting of the lifting bar (27a) ) Is provided.

That is, when the motor 24 is rotated, the rotational force is decelerated toward the increase through the reduction unit 25 and then transmitted to the screw rod 27. At this time, the elevating plate 26 engaged with the screw rod 27 is moved up and down along the thread of the screw rod 27. At this time, as the lifting bar 27a moves up and down together, the extraction cap 20 coupled to the bottom is lifted.

The pressurizing part 32 is a kind of air pump. The pressing part 32 is activated when the lower end of the extraction cap 20 is in contact with the strainer 29. That is, when the high-pressure air is supplied to the air inlet 22 along the air pipe 32a and blown into the extraction cap 20, the residue of the ground coffee mixed with hot water is filtered out of the mesh 30 and only the raw liquid is extracted from the bottom. It falls into the mixing cylinder 5 through the sphere 31.

Gallbladder 33 is to sweep the filtered debris out of the net (30). This is operated by a motor or the like, and is moved to the left and right sides of the network 30. At this time, when the brush coupled to the lower end of the gutter 33 sweeps the surface of the mesh 30, the residue falls from the mesh 30.

On the other hand, the tube closing port 17 is installed in the coffee supply pipe 16 connected between the mixing unit 12 and the coffee inlet 21. When the lever 19 is pressurized by the cam 18 rotated by a motor, this pipe closing opening 17 is pressed down. Therefore, the coffee supply pipe 16 is blocked.

The reason for closing the tube 16 is as follows. That is, when high pressure air is blown into the cap 20 while the lower end of the extraction cap 20 is in contact with the filtering part 29, the pressure flows back toward the mixing part 12 through the pipe 16. As such, when the air flows back into the mixing unit 12, the ground coffee of the coffee container 11 connected thereto is scattered and blown. To prevent this, the tube 16 is closed when high pressure air is injected into the extraction cap 20.

3 is a side cross-sectional view of the extraction apparatus to which the present invention is applied. That is, the shielding plate 40 covering the cap lifting means 23 constituting the extraction device is installed so that the extraction device is not exposed to the outside. The shield plate 40 is formed with a check hole 41 to expose the extraction cap 20 and the filter portion 29 to the outside. At this time, the check hole 41 is used when the foreign matter is caught in the mesh 30 formed in the filtering portion 29 or should be replaced by aging. And cover 42 which is disassembled and assembled with screws 45 is installed to cover when not using the check hole 29.

On the other hand, the safety switch 43 is installed in the shield plate 40 in the lower portion of the inspection port (41). The lever 44 of the safety switch 43 is usually installed so that the inner surface of the cover 42 is pressed down and detached when the cover 42 is separated. That is, when the lever 44 is pressed, the motor 24 is operable so that the extraction cap 20 is elevated, and when the lever 44 is dropped, the motor 24 is not operated so that the extraction cap 20 is not lifted. Do it. In addition, the safety switch (43a) is installed on the cover plate 40 in the upper portion of the inspection port 41 so that the lever 44a falls and blows when the cover 42 is disassembled and assembled. In other words, the sales signal is normally operated in the state in which the lever 44a is attached so that the coffee is sold. If the lever 44a is dropped, the selling signal is abnormally operated so that the coffee is not sold.

In addition, the inspection opening 46 is formed above the inspection opening 41 of the shielding plate 40, and is used when fixing the motor 24 and the lifting plate 26. And the cover 47 which is disassembled and assembled with a screw 45 is installed to cover this when not using the check hole 46.

The present invention configured as described above is the first mixture of the ground coffee and hot water and then blown with high-pressure air to extract the stock solution in a state that the residue is caught in the net. That is, the lifted extraction cap 20 shown in FIG. 2 is moved downward. That is, as the screw rod 27 is rotated by the driving of the motor 24, the lifting bar 27a is moved downward.

At this time, the extraction cap 20 coupled to the lower end of the elevating bar 27a is moved together, and the lower end is in contact with the strainer 29.

On the other hand, the ground coffee is contained in the coffee container (11). The contained coffee beans are supplied to the mixing unit 12 by one serving. At this time, hot water of the hot water tank 15 is supplied to the mixing unit 12 and mixed with the coffee beans. In addition, the coffee beans mixed with hot water is supplied to the extraction cap 20 along the coffee supply pipe (16). At this time, the coffee solution dissolved in hot water naturally flows to the extraction port 31 through the net 30 and is supplied to the mixing container 4 of FIG.

That is, when the supply of the pulverized coffee is completed, the cam 18 and the lever 19 of the tube closing mechanism 17 are operated as shown in FIG. 2, and the coffee supply pipe 16 is pressed and closed. At this time, the high pressure air from the pressurizing unit 17 is supplied into the extraction cap 20 through the air inlet 22. When the high pressure air is supplied in this way, the inside of the cap 20 is expanded and the ground coffee melted in hot water is squeezed due to its expansion force. That is, the residue is filtered through the net 30 and only the raw liquid flows through the net 30 to the extraction tube 31 and is supplied to the mixing barrel 4.

On the other hand, when all the stock solution is extracted, the motor 24 is operated in reverse rotation so that the extraction cap 20 is raised. In addition, after the extraction cap 20 is raised, the gallbladder 33 is moved left and right.

When the gallbladder 33 is moved in this way, the debris filtered by the mesh 30 is swept away and removed.

On the other hand, when the stock solution is supplied to the mixing container (4), sugar and prim are supplied from the sugar cream container (2) as desired. In addition, the raw liquid mixed with the supplied sugar or prim is finally poured into the cup 5.

On the other hand, if the extraction device is used for a long time, the net 30 needs to be replaced because it is old, and foreign matter is caught in the net 30 so that the filtration is not good. At this time, loosen the screw 45 to remove the cover 42 from the shielding plate (40). At this time, since the safety switch 43 is operated while the lever 44 of the safety switch 43 falls, the motor 24 is stopped. In such a state, it is possible to check the state of the net 30 through the check hole 41 and to replace or remove foreign substances such as debris.

On the other hand, when the cover 42 is removed, the lever 44a of the safety switch 43a is dropped, thereby stopping the coffee state. Therefore, the crushed coffee melted in hot water is supplied into the extraction cap 20 so that it does not fall to the lower side, thereby preventing a burn. On the other hand, when the inspection of the net 30 is completed, the cover 41 is assembled in the reverse order of removal. At this time, the levers 44 and 44a of the safety switches 43 and 43a are pressed so that the motor 24 and the coffee sales are normally performed.

As described above, according to the present invention, the extraction cap is not lifted and the coffee is not sold when checking the state of the net in the filtering part, thereby preventing a safety accident in advance.

Claims (1)

When the extraction cap lifted by the motor covers the upper part of the filtering part, supplying the pulverized coffee mixed with hot water from the mixing part into the extraction cap, and extracting the undiluted solution, the check hole is formed so that the gap between the filtering part and the extraction cap is exposed to the outside. A plate is installed in front of the extraction cap and the filter part, the cover surrounding the inspection port is installed to be disassembled and assembled on the screening plate with screws, etc., and the safety switch is operated when the cover is disassembled to cut off the power of the motor. Safety device for brewing coffee beans, characterized in that installed between the cover and the cover plate.