JP3039433U - Filter cleaning device for beverage liquid extractor - Google Patents

Abstract

(57) Abstract: In a soaking tank type beverage liquid extraction device, after the extraction work, when cleaning and removing coffee bean dregs, tea leaf crusts and the like adhering to the filter upper surface, the bean dregs and tea crusts removed by the washing work Without the slags of etc. being scattered around,
Further, the present invention provides a cleaning device capable of constantly ejecting a uniform mixed fluid of "air + clear water" as a cleaning fluid. An immersion tank type beverage liquid extracting device is provided with a washing pipe (4) which is movable in parallel from the upper side to the lower side along the upper surface of the filter (3) when the bottom lid (2) is open, and a large number of the washing pipes (4) are provided. 2. The filter cleaning device according to claim 1, wherein the fluid injection nozzles 5 are arranged obliquely downward.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a filter cleaning device for a beverage extraction device capable of extracting an extracted beverage liquid such as coffee, black tea, oolong tea, barley tea, and green tea from extraction raw materials such as coffee beans and tea leaves.

[0002]

[Prior art]

 A raw material storage tank provided with a raw material inlet at the top and a hot water supply spray nozzle inside, and a bottom lid openable and closable at the bottom opening of the raw material storage tank were attached to the bottom lid. BACKGROUND ART An immersion tank type beverage liquid extracting device for extracting extracted beverage liquid such as coffee and tea through a wire mesh filter has been conventionally known.

In this type of beverage liquid extraction device, after the extraction work, in order to clean and remove coffee beans, tea leaves, etc. adhering to the upper surface of the filter, a cleaning pipe that can be rotated 360 ° is installed along the upper surface of the filter. It is swirled like an hour hand, and the cleaning fluid (air and / or fresh water) is jetted from this cleaning pipe toward the upper surface of the filter to remove the soybean cake, tea leaves, etc. adhering to the filter. A device has been proposed. (See Japanese Utility Model Publication No. 7-27425)

Since this cleaning work is performed with the lower lid open, when the cleaning fluid is sprayed while the cleaning pipe is swirling, the sprayed fluid swirls the soybean cake, tea leaves, etc. as the cleaning pipe swirls. In the downward swirl stroke, the fluid is ejected obliquely downward, so the removal work is relatively smooth.However, in the upward swirl stroke, the jet direction is slanted upward and in the intermediate stroke. Since the same is turned sideways, there is a problem that the extracted slag, such as bean dregs and tea leaves, are scattered around and cause environmental pollution, and it takes time to clean them.

Further, as the cleaning fluid, a homogeneous mixed fluid of “air + fresh water” is most preferable, but when the cleaning pipe is swung in the shape of an hour hand, the direction of gravity changes depending on the swiveling angle (direction of the hour hand). Therefore, the mixing state becomes non-uniform, and even if a uniform mixed fluid of "air + clear water" is injected in the downward swirl stroke, only air is injected in the upward swirl stroke, and variations occur in the lateral swirl stroke, causing cleaning. There was also a problem that the effect declined.

[0006]

[Problems to be solved by the device]

 The present invention has been made to solve the above problems, and in an immersion tank type beverage liquid extraction device, after the extraction work, the coffee bean dregs, the tea leaves, etc. adhering to the upper surface of the filter are cleaned and removed. In this regard, we provide a cleaning device that does not scatter the extracted slag, such as bean dregs and tea leaves, which have been removed by the washing work, into the surroundings, and can always spray a uniform mixed fluid of "air + fresh water" as the washing fluid. Is what you are trying to do.

[0007]

[Means for Solving the Problems]

 An extraction tank 1 having a raw material inlet at the top and a hot water supply spray nozzle inside, and a bottom lid 2 openably and closably provided at the bottom opening of the extraction tank, and a wire mesh attached to the bottom lid. In a soaking tank type beverage liquid extracting device for extracting extracted beverage liquid such as coffee and tea through the filter 3, in a state where the bottom cover 2 is opened, the upper side of the filter 3 is moved downward from above. A filter cleaning device is provided with a parallel-movable cleaning pipe 4, and a large number of fluid injection nozzles 5 are arranged on the cleaning pipe 4 obliquely downward.

[0008]

[Embodiment of the invention]

 An embodiment of the present invention will be described with reference to FIGS. 1 is a side view with the bottom lid closed, FIG. 2 is a side view with the bottom lid open, FIG. 3 is a view from A to arrow in FIG. 2, FIG. 4 is a cross section from B to FIG. 5 is the same C-enlarged sectional view.

In the figure, reference numeral 1 denotes a cylindrical extraction tank, which is provided with an openable / closable raw material inlet 1a at an upper portion and an openable / closable bottom lid 2 at a bottom portion so as to be hermetically sealed. A wire mesh filter 3 is stretched on the upper surface of the bottom cover 2, and an extraction hole 2a is provided at the center of the bottom.

Reference numeral 4 denotes a cleaning pipe which is movable in parallel from the upper side to the lower side along the upper surface of the filter 3 when the bottom cover 2 is open, and a large number of fluid injection nozzles 5 are arranged obliquely downward. ing.

Both ends of the cleaning pipe 4 are connected to a driving side slider 7a and a driven side slider 7b which are slidable along guide rails 6a and 6b arranged in parallel with the upper surface of the filter 3 of the bottom lid 2. They are supported via arms 8a and 8b, respectively. It should be noted that one arm 8a has a pipe shape and is connected to a cleaning fluid source (air + fresh water).

A nut is engraved at the center of the drive-side slider 7 a and is screwed onto the ball screw rod 9. Reference numeral 10 is a drive motor for rotating the ball screw rod 9.

According to the above-described embodiment, when the ball screw rod 9 is normally and reversely rotated by the motor 10 with the bottom cover 2 opened as shown in FIG. 2, the slider 7a slides along the guide rail 6a. The jet nozzle 5 can be moved back and forth from the position 5a facing the upper end of the filter 3 to the position 5b facing the lower end while keeping the cleaning pipe 4 horizontal.

Therefore, after the extraction work is completed, the bottom cover 2 is opened, and the motor 10 is driven to keep the cleaning pipe 4 horizontal, while the injection nozzle 5 faces the upper end of the filter 3 to the position 5a. By spraying the cleaning fluid from the spray nozzle 5 while moving the filter 3 up to 5b in parallel with the filter 3, it is possible to clean and remove the coffee bean dregs, tea leaves, etc. attached to the upper end of the filter 3. Further, after the cleaning work is completed, the motor 10 is rotated in the reverse direction to return the cleaning pipe 4 to the original position 5a and close the bottom cover 2 to prepare for the next extraction work in the state shown in FIG.

[0014]

[Effect of the invention]

 According to this invention, the immersion tank type beverage liquid extracting device is provided with the washing pipe 4 which is capable of moving in parallel from the upper side to the lower side along the upper surface of the filter 3 in the opened state of the bottom cover 2, By arranging a number of fluid jet nozzles 5 diagonally downward on the washing pipe 4, the direction of jetting the washing fluid is always diagonally downward when cleaning and removing coffee grounds, tea leaves, etc. adhering to the upper surface of the filter. Therefore, the extraction slag of bean dregs, tea leaves, etc. removed by the washing work does not fall downward and is scattered around, and the washing pipe 4 is kept horizontal during the washing process. Since the posture does not change, when "air + clear water" is used as the cleaning fluid, a uniform mixed fluid can always be jetted.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention with a bottom lid closed.

FIG. 2 is likewise a side view with the bottom lid open.

FIG. 3 is a view from arrow A of FIG.

FIG. 4 is a cross-sectional view taken along line B of FIG.

FIG. 5 is a C-enlarged sectional view of the same.

[Explanation of symbols]

 1 Extraction Tank 2 Bottom Lid 3 Filter 4 Cleaning Pipe 5 Fluid Injection Nozzle 6a, 6b Guide Rail 7a Drive Side Slider 7b Driven Side Slider 8a, 8b Support Arm 9 Ball Screw Rod 10 Drive Motor

Claims (3)

[Utility model registration claims] 1. A brewing tank 1 having a raw material inlet at the top and a hot water supply spray nozzle inside, and a bottom lid 2 rotatably provided at the bottom opening of the brewing tank. In a soaking tank type beverage liquid extraction device in which extracted beverage liquid such as coffee and tea is drawn out through a wire mesh filter 3 attached to a lid, in a state where the bottom lid 2 is open, along an upper surface of the filter 3 from below to above. 1. A filter cleaning device comprising a cleaning pipe (4) which can be moved in parallel to a direction, and a large number of fluid injection nozzles (5) are arranged in a row obliquely downward in the cleaning pipe (4). 2. Both ends of the cleaning pipe 4 are guide rails 6a, 6b arranged in parallel with the upper surface of the filter 3 of the bottom lid 2.
2. The filter cleaning device according to claim 1, wherein the filter cleaning device is supported by a drive side slider 7a and a driven side slider 7b which are slidable along an arm via arms 8a and 8b, respectively. 3. The filter cleaning device according to claim 1, wherein a mixed fluid of air and fresh water is used as the cleaning fluid.