CN108720600B

CN108720600B - Italian type strong coffee type portable beverage extractor

Info

Publication number: CN108720600B
Application number: CN201710338363.XA
Authority: CN
Inventors: 尹汉相
Original assignee: Brunskop Co ltd
Current assignee: Brunskop Co ltd
Priority date: 2017-04-19
Filing date: 2017-05-15
Publication date: 2021-01-15
Anticipated expiration: 2037-05-15
Also published as: KR20180117450A; WO2018194355A1; KR101926670B1; CN108720600A; CN207627090U

Abstract

The espresso-type portable beverage extractor of the present invention comprises: a cylinder part, in which a space for containing water for extracting beverage is formed; a filter bowl detachably coupled to a lower end of the cylinder part and containing contents for extracting the beverage; and a piston part which is introduced into the cylinder part to pressurize the water contained in the cylinder part towards the filter bowl side. The espresso type portable beverage extractor of the embodiment of the present invention may conveniently extract a beverage by generating a great pressure with a small force using pascal's law.

Description

Italian type strong coffee type portable beverage extractor

Technical Field

The present invention relates to a beverage extractor, and more particularly, to an espresso type portable beverage extractor that can extract a beverage such as coffee or tea by generating a large pressure using a small force.

Background

In general, during the outward movement, beverages such as tea and coffee are often purchased and drunk in the form of tea bags or instant coffee. However, recently, a group of people who drink coffee, tea, or the like according to personal preference by purchasing raw bean coffee powder, tea powder, or the like required for making tea, making coffee, or the like has been increasing.

On the other Hand, methods for producing raw bean coffee include a Hand-held (Hand) method, an Espresso machine (Espresso machine) method, a French press (French press) method, and the like. Among them, the handpunch method is the most commonly used coffee making method, and makes coffee by placing filter paper on a funnel-shaped dropper (dipper) pad and filling the raw bean coffee powder, pouring hot water into the raw bean coffee powder, and making coffee flow into a container located below the dropper. The coffee maker type is a type of quickly extracting coffee by using a coffee maker, and the french press type is a type of extracting coffee by putting raw coffee bean powder into a tube-type glass container shaped like a syringe, pouring hot water, and then pressurizing the raw coffee bean powder with a metal filter.

In many storefronts selling beverages such as coffee and tea, a coffee maker model is used to simply and quickly make coffee by using a coffee maker, but since coffee makers are expensive and bulky, coffee is generally extracted by a person or a general household using a brewing method or a pot pressing method.

In this case, the hand brewing method takes a long time to extract coffee depending on the method of pouring water, the amount of water, or the skill of the person who makes coffee, and thus people who extract coffee by the french press method are increasing.

In a more detailed description of the french press type coffee extraction method, raw coffee bean powder and hot water are introduced into a glass container, and a filter net provided with a filter is inserted from above to filter the raw coffee bean powder. In other words, in the french press method, in order to separate brewed coffee (water) and raw bean coffee powder from raw bean coffee powder, a filter net formed with a plurality of holes is used, and a user pours coffee into a cup for drinking after separating raw bean coffee powder and coffee (water) by pressing the raw bean coffee powder. Because the French press can brew coffee faster, it has the advantage of making the coffee closer to espresso.

However, although coffee extracted by the french press method described above is close to espresso, it is difficult to consider espresso made by the conventional method.

Here, espresso means coffee whose taste belongs to the most basic level among a plurality of kinds of coffee, and all coffee can be made on the basis of espresso.

In order to make this espresso coffee, the following steps are required: a grinding step, wherein the fineness of the raw bean coffee powder is about 3 times that of the coffee powder for making coffee; a filling step, namely leveling and pressing the coffee beans made into powder; and an extraction step of extracting about 30mL of coffee from the water and the tamped coffee powder with a pressure of about 9bar for a period of 20 to 30 seconds.

As described above, the espresso coffee making process is very complicated and requires a great pressure, and thus, if there is no espresso extraction machine, the espresso coffee cannot be made, and thus there is a problem in that there is a limited place where the espresso coffee can be enjoyed.

Recently, in order to solve the above problems, many portable espresso extractors have been developed. However, in order to supply the pressure for extracting espresso, in conventional portable espresso extractors, a large pressure is artificially produced by using a separate tool such as a lever, a handle, and an air pump. As described above, in order to increase the pressure, additional energy consumption is required and a separate tool needs to be prepared, so that there is a problem in that a user feels inconvenience. In particular, even if a separate tool is used to increase the pressure, it is difficult to achieve a pressure at which espresso can be extracted.

Accordingly, in order to solve the above-mentioned problems, the present applicant proposed the present invention, and the related prior art document is Korean Utility model publication No. 20-0480686 (Utility model name: Portable espresso machine, registration date: 2016, 20/06/78).

Disclosure of Invention

The present invention aims to provide an espresso type portable beverage extractor capable of generating a great pressure with a small force to extract coffee or various teas.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art through the following descriptions.

The above object is achieved by the present invention, which provides an espresso-type portable beverage extractor comprising: a cylinder part, in which a space for containing water for extracting beverage is formed; a filter bowl detachably coupled to a lower end of the cylinder part and containing contents for extracting the beverage; and a piston part which is introduced into the cylinder part to pressurize the water contained in the cylinder part towards the filter bowl side.

The cylinder part may include: a cylinder body having an upper side and a lower side opened; and a pressurizing flange extended from a lower end of the cylinder body, having an inner diameter greater than that of the cylinder body, to provide a pressurizing effect based on Pascal's law when the piston portion is introduced.

The inner diameter of the pressurizing flange may be in a range of 1.2 to 2.0 times the inner diameter of the cylinder body.

The espresso-type portable beverage extractor of the present invention may further include a piston housing for enclosing the piston part and fixing an upper end portion of the piston part.

The piston housing may include: a cylinder-shaped housing body for surrounding the piston portion; and a coupling bracket provided at a lower end portion of the housing body and coupled to the lower end portion of the cylinder portion in a state where the piston portion is introduced to an inner end of the cylinder portion.

The coupling bracket may be configured to cover a lower end portion of the cylinder portion, at least one fixing protrusion may be formed on an outer circumferential surface of the lower end portion of the cylinder portion, and a plurality of fixing grooves may be formed on an inner circumferential surface of the coupling bracket.

The piston housing may include: a cylinder-shaped housing body for surrounding the piston portion; and an upper handle formed by extending along the radius direction on the outer peripheral surface of the housing body, and providing a part which can be held by a user in the process of pushing the piston part into the cylinder part.

The filter bowl may include: the filter bowl body is provided with a filter and used for containing contents for extracting beverage; and a lower handle for supporting the cylinder combined with the filter bowl relative to a separate cup or container when extracting beverage, and providing a part for holding by a user.

The espresso type portable beverage extractor of the present invention may further include a filter net provided at a lower end portion of the cylinder part.

The lower end of the cylinder part may be coupled to the filter bowl in a structure in which the upper end of the filter bowl is received, the filter net may be disposed inside the lower end of the cylinder part and supported by the upper end of the filter bowl, and a gasket for sealing between the cylinder part, the filter net, and the filter bowl may be provided around the filter net.

The espresso-type portable beverage extractor of the present invention may include a lid portion removably coupled to a lower end portion of the filter bowl in a manner to cover an open lower side of the filter bowl.

The cover part forms an inner space for containing the beverage extracted by the filter bowl when the beverage is extracted, thereby playing the role of a cup or a container.

The espresso-type portable beverage extractor of the present invention may further include a spoon used when contents for extracting the beverage are contained in the filter bowl, and the spoon may be contained and stored in the inside of the lid when the lid is coupled to the lower end portion of the filter bowl and the beverage is not extracted.

The espresso-type portable beverage extractor of the present invention generates a great pressure with a small force using the pascal's law, so that a beverage can be conveniently extracted.

In addition, the Italian espresso type portable beverage extractor of the present invention does not generate a large pressure by using energy such as electricity, and thus is environmentally friendly.

In particular, the espresso-type portable beverage extractor of the present invention can make the coupling and decoupling of the respective components for generating a great pressure with a small force very simple, so that anyone can use it easily and carry it and move it conveniently.

Drawings

FIG. 1 is an exploded perspective view of an espresso-type portable beverage extractor in accordance with one embodiment of the present invention.

Fig. 2 and 3 are combined perspective views of the espresso type portable beverage extractor shown in fig. 1.

Fig. 4 is a sectional view illustrating a use state of the espresso type portable beverage extractor shown in fig. 2 and 3.

Fig. 5 is an enlarged view of a part of fig. 4.

Fig. 6 is a diagram for explaining another use state of the espresso type portable beverage extractor shown in fig. 2 and 3.

Description of reference numerals

100: italian type strong coffee type portable beverage extractor

110: cylinder portion 112: cylinder body

114: pressurizing flange 115: fixing protrusion

120: piston portion 121: gap

130: piston housing 131: outer cover

131 a: locking shoulder 132: outer cover body

134: the coupling bracket 135: fixing groove

136: upper handle 137: holding groove

140: the filter bowl 141: upper end part

142: the filter bowl body 143: lower end part

146: lower handle 147: projecting groove

150: filter screen 151: mesh hole

152: gasket 160: cover part

161: the spoon setting groove 162: step part

167: the coupling protrusion 170: filter

180: spoon

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily practice the invention. The present invention can be realized in various forms, and is not limited to the embodiments described herein.

The drawings illustrate the invention diagrammatically and not to scale. Relative dimensions and proportions of parts of the figures have been shown exaggerated or reduced in size, for the sake of clarity and convenience in the drawings, and any dimensions are exemplary only and not limiting. In order to embody the detailed features, the same reference numerals are given to two or more identical structures, elements, or components shown in the drawings.

The embodiments of the invention specifically present idealized embodiments of the invention. Accordingly, many variations of the drawings are possible. Thus, embodiments are not limited to the particular forms shown, and may include, for example, variations in form based on manufacturing.

Hereinafter, an espresso-type portable beverage extractor 100 (hereinafter, referred to as a beverage extractor) according to an embodiment of the present invention will be described with reference to the drawings.

Fig. 1 is an exploded perspective view of an espresso type portable beverage extractor according to an embodiment of the present invention, fig. 2 and 3 are combined perspective views of the espresso type portable beverage extractor shown in fig. 1, fig. 4 is a sectional view illustrating a use state of the espresso type portable beverage extractor shown in fig. 2 and 3, fig. 5 is an enlarged view of a part of fig. 4, and fig. 6 is a view for explaining another use state of the espresso type portable beverage extractor shown in fig. 2 and 3.

As shown in fig. 1 to 6, a beverage extractor 100 according to an embodiment of the present invention includes: a cylinder 110 having a space for receiving water for extracting beverage therein; a filter bowl 140 detachably coupled to a lower end of the cylinder part 110 and containing contents for extracting the beverage; and a piston part 120 which is introduced into the cylinder part 110 to pressurize the water contained in the cylinder part 110 toward the filter bowl 140.

Referring to fig. 1 to 3, the cylinder portion 110 has a hollow cylindrical shape, and contains water for extracting beverage in an internal space. For example, when the beverage to be extracted by using the beverage extractor 100 is coffee, it is preferable that water having a temperature of 90 ℃ or higher be contained therein.

The cylinder portion 110 includes a cylinder body 112 and a pressurizing flange 114. The cylinder body 112 has a cylindrical shape long in one direction. At this time, the cylinder body 112 is opened at the upper and lower sides, and the piston portion 120 is drawn into the opened upper side of the cylinder body 112. For reference, since hot water is filled in the cylinder body 112, a heat-resistant and corrosion-resistant material such as stainless steel (stainless steel) may be used, and other materials may be used as necessary.

On the other hand, the supercharging flange 114 is formed in a flange (flange) shape extending from the lower end of the cylinder body 112. Also, the inner diameter of the pressurizing flange 114 is larger than the inner diameter of the cylinder body 112. That is, since the inner diameter of the pressurizing flange 114 is larger than the inner diameter of the cylinder body 112, a pressure rising effect based on Pascal's principle is generated as the piston portion 120 is introduced into the cylinder body 112. Wherein, according to the pascal's law, a pressure generated by a small force F1 acting on a piston with a cross-sectional area a1 is transmitted to a large piston with a cross-sectional area a2, where the pressure experienced by the piston with a cross-sectional area a1 is the same as the pressure experienced by the piston with a cross-sectional area a 2.

On the other hand, as a result of various experiments, it is shown that the inner diameter of the pressurizing flange 114 according to an embodiment of the present invention preferably ranges from 1.2 times to 2.0 times the inner diameter of the cylinder body 112. For example, when the inner diameter of the cylinder body 112 is 30mm and the inner diameter of the pressurizing flange 114 is 50mm, a pressure of about 9bar is generated when a person having a weight of 60kg to 70kg presses the cylinder body. Of these, 9bar is a suitable pressure for extracting espresso coffee, which can thus be extracted by using the beverage extractor 100 according to an embodiment of the present invention.

For reference, at least one fixing protrusion 115 is formed at a lower end portion of the cylinder portion 110, that is, at least one fixing protrusion 115 is formed at an outer circumferential surface of the pressurizing flange 114. The fixing protrusion 115 is inserted and fixed into a fixing groove 135 formed in a coupling bracket 134 of the piston housing 130, which will be described later. Accordingly, the pressurizing flange 114 and the coupling bracket 134 are coupled to each other via the fixing protrusion 115 and the fixing groove 135, and finally, the piston portion 120 and the piston housing 130 are fixedly coupled to the cylinder portion 110. This part will be described in more detail later.

Referring to fig. 1 to 3, the piston portion 120 is introduced into the cylinder portion 110 to pressurize water contained in the cylinder portion 110 toward a filter bowl 140 described later. Such a piston portion 120 is formed in a piston (piston) form to be introduced into the interior of the cylinder body 112 of the cylinder portion 110. For reference, the end of the lower end of the piston part 120 is formed in a conical shape, so that it is easier for a user to apply a force to move the piston part 120 from the upper end to the lower end of the cylinder part 110 by applying pressure. On the other hand, although not shown, a rubber material may be attached to the end of the lower end portion of the piston portion 120, but the present invention is not limited thereto.

Here, the beverage extractor 100 of an embodiment of the present invention further includes a piston housing 130. The piston housing 130 is for enclosing the piston portion 120. At this time, the upper end of the piston portion 120 may be fixed to the piston housing 130.

Hereinafter, a method of fixing the piston portion 120 to the piston housing 130 will be briefly described.

Referring to fig. 1, a "+" shaped groove is formed at an upper end portion of the piston housing 130. At this time, a separate outer cover 131 is formed to cover the piston housing 130, and at least one protrusion part 131a is formed at one surface of the outer cover 131. The protrusion 131a formed on one surface of the outer cap 131 is inserted into a portion of a "+" shaped groove formed at the upper end of the piston housing 130. A slit 121 extending in the left-right direction is formed at a position spaced apart from the upper end of the piston portion 120 by a predetermined distance in the upper direction. Such a slit 121 is inserted into a portion of a "+" shaped groove formed at an upper end portion of the piston housing 130, that is, a portion where the protrusion 131a of the housing cover 131 is not inserted. On the other hand, unlike the case shown in the drawings, the outer cap 131 and the piston portion 120 may be formed integrally, and the piston portion 120 may be combined with the outer cap 131 by bonding or welding. For reference, the method of fixing the piston portion 120 to the piston housing 130 is not limited to the above method, and the piston portion 120 may be fixed to the piston housing 130 by various methods as needed.

For reference, the name of the owner of the beverage extractor 100 or a logo (logo) of a printing company may be recorded on the upper surface of the outer cover 131 to use the beverage extractor 100 as a promotional object.

Also, the piston housing 130 includes a housing body 132 and a coupling bracket 134. The housing body 132 is a cylinder (cylinder) -shaped member that surrounds the periphery of the piston portion 120. In other words, the housing body 132 is formed in a cylindrical shape having a hollow interior and being long in the longitudinal direction, and the piston portion 120 is located inside the housing body 132. At this time, the coupling bracket 134 is provided at the cover body 132. The coupling bracket 134 is provided at a lower end portion of the housing body 132. In a state where the piston portion 120 is introduced to the inner end of the cylinder portion 110, the coupling bracket 134 is coupled to the lower end portion of the cylinder portion 110, that is, the supercharging flange 114.

The coupling bracket 134 covers the lower end of the cylinder 110. In other words, if the piston portion 120 is introduced into the cylinder portion 110, that is, the piston portion 120 is introduced into the cylinder body 112 so as to be completely introduced from the upper end portion to the lower end portion of the cylinder body 112, the piston housing 130 completely surrounds the cylinder body 112. Thus, the coupling bracket 134 provided at the lower end of the housing body 132 covers the lower end of the cylinder portion 110, that is, the supercharging flange 114.

On the other hand, a plurality of fixing grooves 135 are formed on the inner circumferential surface of the coupling bracket 134. The plurality of fixing grooves 135 formed at the coupling bracket 134 are used to insert and fix the fixing protrusions 115 formed at the outer circumferential surface of the pressurizing flange 114 in the above-described manner. Specifically, if the piston portion 120 is completely introduced into the interior of the cylinder body 112 of the cylinder portion 110, the coupling bracket 134 covers the supercharging flange 114 of the cylinder portion 110. At this time, the fixing protrusion 115 formed at the pressurizing flange 114 is inserted and fixed into one fixing groove 135 among the plurality of fixing grooves 135 formed at the coupling bracket 134, and finally, the cylinder part 110, the piston part 120, and the piston housing 130 are firmly coupled to each other.

For reference, it is preferable that the width of the plurality of fixing grooves 135 formed at the coupling bracket 134 is greater than the width of the fixing protrusions 115 formed at the pressurizing flange 114. The reason for this is that, when the piston portion 120 is introduced into the interior of the cylinder body 112, a pressure is generated between the interior of the cylinder body 112 and the piston portion 120, and the generated pressure causes the piston portion 120 not to be introduced perpendicularly to the cylinder body 112 but to be introduced after being slightly rotated or moved in a direction. If the width of the fixing groove 135 of the coupling bracket 134 is the same as the width of the fixing protrusion 115 of the pressurizing flange 114, it may be difficult to insert the fixing protrusion 115 into the fixing groove 135.

An upper handle 136 is formed in the piston housing 130. The upper grip 136 extends radially from the outer peripheral surface of the housing body 132. Such an upper handle 136 provides a portion that can be held by a user during pushing the piston portion 120 into the cylinder body 112. In other words, when a user introduces the piston portion 120 into the cylinder body 112, the upper handle 136 completely couples the piston portion 120 and the piston housing 130 with the cylinder portion 110.

On the other hand, a grip groove 137 may be formed in the upper grip 136. The grip groove 137 is a portion where the user's fingers are located when the user grips and presses the upper grip 136, that is, a portion where the thumb is located. The holding groove 137 is formed by forming one end portion of the upper handle 136 into a curved surface, so that it is easier to put the thumb of the user on the holding groove and press the upper handle 136.

Referring to fig. 1 to 3, the filter bowl 140 is detachably coupled to a lower end portion of the cylinder part 110, and is a part for receiving contents for extracting beverage. Specifically, the filter bowl 140 includes a filter bowl body 142 and a lower handle 146.

The filter bowl body 142 is provided with a filter 170 therein, and the filter bowl body receives the contents for extracting the beverage thereon. The contents contained in the filter bowl body 142 may be classified into various forms such as raw bean coffee powder and tea powder according to the beverage to be extracted.

In this case, the filter 170 provided in the filter bowl body 142 may be a metal filter or a paper filter, and the metal filter is preferably used because it is a space for receiving contents for extracting the beverage. A plurality of holes are provided in the filter 170 to allow water transferred from the inside of the cylinder part 110 to flow out of the bowl body 142. At this time, it is preferable that the size of the hole formed in the filter 170 is smaller than the size of the content contained therein so that the content contained in the filter bowl body 142 cannot be separated therefrom.

The upper end 141 of the bowl body 142 is coupled to the pressurizing flange 114, and the lower end 143 of the bowl body 142 is coupled to a lid 160, which will be described later.

Specifically, the upper end 141 of the bowl body 142 is formed in a flange shape, and a thread is formed on the outer circumferential surface. The pressurizing flange 114 is configured to receive the upper end of the filter bowl 140, that is, the upper end 141 of the filter bowl body 142, and may be configured to form a thread groove corresponding to the thread formed on the upper end 141 of the filter bowl body 142. Thus, the upper end 141 of the bowl body 142 is received in the pressure flange 114 and screwed thereto.

The lower end 143 of the bowl body 142 is cylindrical. At this time, at least one protrusion groove 147 is formed on the outer circumferential surface of the lower end portion 143 of the bowl body 142. The protrusion groove 147 is used to insert a coupling protrusion 167 formed on an inner circumferential surface of a cap 160, which will be described later.

For reference, the lid 160 may be formed or not formed in the beverage extractor 100 of an embodiment of the present invention, and thus the protrusion groove 147 is not necessarily formed in the lower end 143 of the filter bowl body 142. The lower end portion 143 of the bowl body 142 and the lid portion 160, which will be described later, are fixedly coupled to each other by the protrusion groove 147 and the coupling protrusion 167, but the present invention is not limited thereto, and the lower end portion and the lid portion may be coupled to each other by various coupling methods such as screwing.

On the other hand, even if the filter bowl 140 is rotated with respect to the pressurizing flange 114 in order to release the screw coupling between the pressurizing flange 114 and the upper end 141 of the filter bowl body 142, the fixing protrusion 115 of the pressurizing flange 114 is fixedly coupled to the fixing groove 135 of the coupling bracket 134, and thus, not only the coupling between the pressurizing flange 114 and the coupling bracket 134 but also the coupling between the cylinder part 110 and the piston housing 130 are maintained, and only the filter bowl 140 is separated from the pressurizing flange 114.

The lower handle 146 supports the filter bowl 140 relative to a separate cup or container B, i.e., supports the cylinder portion 110 in combination with the upper end 141 of the filter bowl body 142, providing a portion for a user to hold when extracting a beverage. Specifically, the lower handle 146 is formed along a radius of the filter bowl 140. Therefore, if a user positions a separate cup or container B under the lower handle 146, the beverage extracted by the water and contents raised by the pressure is contained in the cup or container B positioned under the lower handle 146.

On the other hand, as shown in fig. 3, the lower grip 146 provides a portion that can be held by both hands of a user together with the upper grip 136 described above, thereby achieving easy extraction of the beverage. In other words, when the piston portion 120 is introduced into the cylinder body 112, if the piston portion 120 is introduced into the cylinder body 112 to some extent, the user grips the upper grip 136 and the lower grip 146 with both hands to increase the pressure inside the cylinder body 112, thereby making it easier to extract the beverage.

Referring to fig. 1 to 3, the beverage extractor 100 according to an embodiment of the present invention further includes a strainer 150. The screen 150 is provided at the lower end portion of the cylinder part 110, i.e., inside the pressurizing flange 114. In other words, the strainer 150 is disposed by being inserted inside the pressurizing flange 114 and supported at the upper end 141 of the bowl body 142 for containing the contents. The strainer 150 allows water to be uniformly sprayed to the contents of the bowl body 142, thereby allowing the amount of coffee or tea to reach the contents of the bowl body 142. Therefore, the screen 150 is made of stainless steel (stainless steel), and a plurality of mesh holes 151 are formed at predetermined intervals so that water can be uniformly sprayed.

On the other hand, a gasket 152(gasket) is provided around the screen 150. In other words, the gasket 152 is disposed along the periphery of the filter screen 150 to seal (sealing) between the pressure flange 114 of the cylinder portion 110, the filter screen 150, and the bowl body 142 of the bowl 140. The gasket 152 may be made of various materials such as rubber, ceramic, etc., and preferably made of a soft material so as not to scratch the filter bowl 140 and the cylinder part 110.

Also, the beverage extractor 100 of an embodiment of the present invention further includes a cover 160. The cover portion 160 is provided to cover the open underside of the filter bowl 140. In other words, the cover 160 is removably coupled to the lower end 143 of the filter bowl body 142. This lid 160 is formed in an open-sided form, forming a space inside, so that when a beverage is extracted, it is contained by the filter bowl 140 located at the upper end. For reference, the shape and size of the cap 160 may vary, and it is preferable that the cap 160 is formed in a cylindrical shape with a capacity of about 30ml in the beverage extractor 100 according to an embodiment of the present invention, in order to achieve a size that maintains compactness and is convenient for a user to drink coffee or tea.

In particular, at least one coupling protrusion 167 is formed on the inner circumferential surface of the cover part 160. The coupling protrusion 167 is inserted into and coupled to the protrusion groove 147 formed on the outer peripheral surface of the lower end portion 143 of the bowl body 142 in the above-described manner. At this time, the cover part 160 is rotatably coupled in one direction with respect to the lower end part 143 of the bowl body 142, and thus, at least one coupling protrusion 167, in other words, a plurality of coupling protrusions 167 are preferably formed.

The lid 160 is formed with a stepped portion 162 in which a scoop 180 (scoop) described later can be accommodated and provided. The scoop 180 is used when the contents for extracting the beverage are contained within the filter bowl 140. The spoon 180 is formed in a cup shape having an accommodating space therein, and a handle having a rod shape is formed at one side thereof so that a user can hold the spoon 180. The scoop 180 as described above can also be used when carrying out a filling or tapping operation for the contents to be contained in the filter bowl 140. For reference, the tamping refers to the task of leveling the surface of the raw espresso coffee powder contained in the handle (filter) and removing the pores present in the layer of raw espresso coffee powder in order to extract the espresso coffee in the extraction step.

On the other hand, in the beverage extractor 100 according to an embodiment of the present invention, the inner space of the spoon 180 is used to contain the raw coffee beans in the filter bowl body 142 to a desired volume, and the flat surface of the spoon 180 is used to evenly compact the raw coffee beans contained in the filter bowl body 142.

On the other hand, the spoon 180 is used as described above when the beverage is extracted, and is coupled to the filter bowl 140, that is, coupled to the lower end 143 of the filter bowl body 142, and is stored in the stepped portion 162 formed inside the lid 160 as described above when the beverage is not extracted, so that the storage and movement of the beverage extractor 100 according to the embodiment of the present invention can be facilitated.

For reference, the handle portion of the spoon 180 in a rod shape is provided to the spoon mounting groove 161 formed at one side of the cover 160 to expose a portion of the handle portion to the outside.

Hereinafter, an example of using the beverage extractor 100 according to an embodiment of the present invention will be described with reference to fig. 1 to 6.

For reference, it is assumed that the cylinder part 110, the piston part 120, the piston housing 130, the filter bowl 140, the filter net 150, the lid part 160, the filter 170, and the spoon 180 of the beverage extractor 100 are separated.

Further, although a use example of extracting espresso coffee by the beverage extractor 100 is described below for convenience of explanation, other beverages such as tea may be extracted.

First, the filter bowl body 142 of the filter bowl 140 is filled with raw coffee beans as a raw material of espresso to be extracted by the spoon 180. At this time, the surface of the raw bean coffee powder loaded on the filter bowl 140 is pressed by the flat surface of the spoon 180.

Next, the filter bowl 140 is coupled to the pressurizing flange 114 provided at the lower end portion of the cylinder portion 110. In other words, the upper end 141 of the bowl body 142 is inserted into the pressurizing flange 114 of the cylinder portion 110. At this time, the filter bowl 140 is coupled to the cylinder part 110 after the filter net 150 is first disposed between the filter bowl 140 and the cylinder part 110.

Then, the cylinder body 112 of the cylinder portion 110 contains therein hot water in an amount corresponding to the amount of the raw coffee powder contained in the bowl body 142. The amount of water contained may be adjusted based on the amount of raw coffee beans held in the filter bowl body 142 until the water is located at the position of a marking line (not shown) marked on the inside of the cylinder body 112. At this time, care is taken not to overflow the water contained in the cylinder body 112.

Next, the lid 160 is coupled to the lower end 143 of the filter bowl body 142 so that the espresso coffee to be extracted can be held therein, or a separate container B is provided at the lower end of the filter bowl 140. At this point, the end of the lower handle 146 of the filter bowl 130 will be at the upper end of the separate container B.

Next, the piston portion 120 and the piston housing 130 are inserted into the upper end of the cylinder portion 110.

Next, as shown in the right side views of fig. 4 and 6, the upper grip 136 of the piston housing 130 is pressed in the arrow direction. When the piston portion 120 is drawn into the cylinder body 112 of the cylinder portion 110 to a certain extent by pressing the upper grip 136, espresso is extracted by gripping the lower grip 146 of the filter bowl 140 together. At this time, the user's thumb is positioned in the holding groove 137 formed in the upper grip 136 and presses the upper grip 136 and the lower grip 146 at the same time, so that the pressure is more effectively expanded, and espresso can be extracted from the raw coffee powder contained in the bowl body 140.

Finally, the cylinder part 110, the piston part 120, the piston housing 130, the filter bowl 140, the filter bowl 150, the lid part 160, and the spoon 180 of the beverage extractor 100, from which coffee extraction is completed, are cleaned, and after the cleaning is completed, the cylinder part 110, the piston part 120, the piston housing 130, the filter bowl 150, the filter bowl 140, the spoon 180, and the lid part 160 are combined in this order, and then stored or moved.

With the above-described structure, the espresso-type portable beverage extractor 100 according to an embodiment of the present invention generates a great pressure with a small force using the pascal's law, so that a beverage can be easily extracted.

Also, the espresso-type portable beverage extractor 100 of the present invention does not generate a large pressure by using energy such as electricity, and thus is environmentally friendly.

In particular, the espresso-type portable beverage extractor 100 of the present invention may make the coupling and decoupling of the respective components for generating a great pressure with a small force very simple, so that anyone can use it easily, carry it and move it conveniently.

While one embodiment of the present invention has been described above with reference to specific matters such as specific structural elements, a limiting embodiment and the accompanying drawings, it is only for the purpose of better understanding of the present invention as a whole, and the present invention is not limited to the above embodiment, and various modifications and variations can be made by those skilled in the art to which the present invention pertains through such descriptions. Therefore, the idea of the present invention is not limited to the illustrated embodiments, and the scope of the present invention and all the modifications equivalent or equivalent to the scope of the present invention are included in the scope of the idea of the present invention.

Claims

1. An espresso-type portable beverage extractor, comprising:

a cylinder part, in which a space for containing water for extracting beverage is formed;

a filter bowl detachably coupled to a lower end of the cylinder portion and containing contents for extracting the beverage; and

a piston part which is introduced into the cylinder part to pressurize the water contained in the cylinder part towards the filter bowl side,

the cylinder part includes:

a cylinder body having an upper side and a lower side opened; and

and a pressurizing flange extended from a lower end of the cylinder body, having an inner diameter greater than that of the cylinder body, to provide a pressurizing effect based on Pascal's law when the piston portion is introduced.

2. The espresso-type portable beverage extractor of claim 1, wherein the inner diameter of the pressurizing flange ranges from 1.2 times to 2.0 times the inner diameter of the cylinder body.

3. The espresso-type portable beverage extractor of claim 1, further comprising a piston housing for surrounding the piston portion and securing an upper end portion of the piston portion.

4. An espresso-type portable beverage extractor according to claim 3, wherein the piston housing comprises:

a cylinder-shaped housing body for surrounding the piston portion; and

and a coupling bracket provided at a lower end of the housing body and coupled to the lower end of the cylinder part in a state where the piston part is introduced to an inner end of the cylinder part.

5. The espresso-type portable beverage extractor of claim 4,

the combination bracket is formed to cover the lower end of the cylinder part,

at least one fixing protrusion is formed on the outer peripheral surface of the lower end part of the cylinder part,

a plurality of fixing grooves are formed on the inner circumferential surface of the coupling bracket.

6. An espresso-type portable beverage extractor according to claim 3, wherein the piston housing comprises:

a cylinder-shaped housing body for surrounding the piston portion; and

and an upper handle formed by extending along a radial direction on the outer peripheral surface of the housing body, and providing a part which can be held by a user in the process of pushing the piston part into the cylinder part.

7. An espresso-type portable beverage extractor according to claim 1, wherein the filter bowl comprises:

the filter bowl body is provided with a filter and used for containing contents for extracting beverage; and

the lower handle is used for supporting the cylinder part combined with the filter bowl relative to a separate cup or container when extracting beverage, and provides a part for holding by a user.

8. The espresso-type portable beverage extractor of claim 1, further comprising a screen disposed at a lower end of the cylinder portion.

9. The espresso-type portable beverage extractor of claim 8,

the lower end part of the cylinder part is combined with the filter bowl by a structure for accommodating the upper end part of the filter bowl,

the filter screen is arranged in the lower end part of the cylinder part and is supported by the upper end of the filter bowl,

and a gasket for sealing the cylinder part, the filter screen and the filter bowl is arranged around the filter screen.

10. The espresso-type portable beverage extractor of claim 1, comprising a lid portion removably coupled to a lower end of the filter bowl to cover an open lower side of the filter bowl.

11. The espresso-type portable beverage extractor of claim 10, wherein the lid portion forms an interior space capable of containing a beverage extracted through the filter bowl when the beverage is extracted, thereby functioning as a cup or a container.

12. The espresso-type portable beverage extractor of claim 10,

also comprises a spoon used when the filter bowl is internally filled with contents for extracting beverage,

the spoon is accommodated and stored in the lid when the lid is coupled to the lower end of the filter bowl and the beverage is not taken.