Italian espresso oil regeneration equipment

By vertically injecting gas into the bottom of the coffee container and utilizing the design of an inflation tube, outer cover, and float plate, the problem of structural damage during crema regeneration is solved, achieving the stability and integrity of crema and improving the quality of coffee.

CN223845470UActive Publication Date: 2026-01-30ANHUI ZHONGJI LIANLIAN ELECTRICAL TECH CO LTD
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Patent Information

Application Number
CN202520054736.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2026-01-30
Estimated Expiration
2035-01-10

AI Technical Summary

Technical Problem

Existing technologies tend to damage the structure of crema during crema regeneration, causing crema to disappear rapidly and affecting coffee flavor.

Method used

By vertically injecting gas into the bottom of the coffee container, and utilizing the design of the inflation tube, outer cover, connecting rod, and float plate, the flow of gas and coffee liquid is controlled to avoid agitation and ensure the stability and integrity of the crema.

Benefits of technology

This effectively prevents the crema from being damaged during the regeneration process, ensuring the stability and integrity of the crema, preventing the regenerated crema from disappearing quickly, and improving the quality of the coffee.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of coffee making equipment, in particular to Italian espresso oil regeneration equipment which comprises an inflation pipe, an inflation hole is formed in the bottom of the inflation pipe, the inflation hole right faces the bottom of an inner cavity of a coffee container during use, and the inflation pipe is connected with air supply equipment. According to the coffee container, the gas is vertically injected downwards, so that the pressure of the bottom area of the coffee liquid is increased, the gas pushes the coffee liquid to move outwards, and the coffee liquid flows upwards along the inner wall of the coffee container, and therefore the coffee liquid can be effectively prevented from being in a stirred state during inflation, the structure of the crema is not prone to being damaged, and the service life of the crema is prolonged. The influence on the stability and integrity of the crema is avoided, and the rapid disappearance of the regenerated crema is effectively avoided.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to coffee preparation equipment technical field, especially, it relates to a espresso coffee oil regeneration equipment. BACKGROUND

[0002] Crema is a layer of reddish-brown foam, mainly composed of carbon dioxide (CO2), air, water vapor and volatile aromatic compounds. These components are released during the high-pressure extraction process of espresso coffee, forming crema. Coffee beans contain dissolved CO2 inside after roasting, and these gases are forced into the solution under the pressure of the espresso machine, and when the pressure suddenly decreases, the gas rapidly diffuses, forming a large number of small bubbles, i.e. crema.

[0003] The formed crema is in a metastable state and has a specific life. The stability of the foam system is affected by many factors, such as drainage, oswald ripening and coalescence, etc. Therefore, when the espresso liquid is transported and stored through the cold chain, the foam layer (crema) on the surface of the espresso liquid will gradually dissipate, resulting in a lack of crema in the cold chain espresso sold by coffee shops, thereby affecting the coffee flavor; at present, we regenerate the crema by injecting air whipping when receiving the cold chain espresso liquid, but during the air whipping, the injected air will make the coffee liquid in a flowing state, and the coffee liquid is in a stirred state, which is easy to damage the structure of the crema, thereby reducing the stability and integrity of the crema, and further causing the regenerated crema to disappear quickly. UTILITY MODEL CONTENTS

[0004] The utility model aims at the deficiencies of the prior art, and provides an espresso coffee oil regeneration equipment to solve the technical problem that the structure of the crema is easily damaged during regeneration in the prior art, resulting in the crema disappearing quickly.

[0005] The purpose of the utility model can be achieved by the following technical solutions:

[0006] An espresso coffee oil regeneration equipment, comprising an air charging pipe, the air charging pipe is provided with an air charging hole at the bottom, the air charging hole is opposite to the bottom of the inner cavity of the coffee container during use, and the air charging pipe is connected with a gas supply device.

[0007] As a preferred technical solution of the above, the air charging pipe is provided with an outer cover at the periphery, the bottom of the outer cover is attached to the bottom of the inner cavity of the coffee container, and a plurality of through holes are formed in the periphery of the outer cover.

[0008] As the preferred technical scheme of the above, the periphery of the inflation pipe is provided with a plurality of connecting rods, the other ends of the plurality of connecting rods are fixed on the same annular ring, and the bottom of the annular ring is rotationally connected with a plurality of floating plates.

[0009] As the preferred technical scheme of the above, the plurality of floating plates are mutually attached.

[0010] As the preferred technical scheme of the above, the outer diameter of the annular ring is equal to the inner diameter of the coffee container.

[0011] As the preferred technical scheme of the above, the inflation pipe is connected with an adjusting mechanism, the adjusting mechanism is located between the inflation pipe and the gas supply device, and the adjusting mechanism is connected with a control unit.

[0012] As the preferred technical scheme of the above, the side of the connecting rod close to the floating plate is provided with a detection mechanism, and the detection mechanism is connected with the control unit.

[0013] The beneficial effects of the present application are as follows:

[0014] 1. In the present application, the gas is injected vertically downward, the pressure of the gas in the bottom region of the coffee liquid is increased, the coffee liquid is pushed outward by the gas, and the coffee liquid flows upward along the inner wall of the coffee container, so that the agitated state of the coffee liquid during inflation is effectively avoided, the structure of the crema is not easily damaged, the stability and integrity of the crema are avoided to be affected, and the rapid disappearance of the regenerated crema is effectively avoided.

[0015] 2. In the present application, the gas entering the coffee liquid is buffered by the outer cover, the agitated state of the coffee liquid caused by the too fast flow of the gas is effectively avoided, the flow range of the gas after injection is small due to the plurality of through holes, the region of the coffee liquid flowing upward along the inner wall of the coffee container is small, the agitated state of the coffee liquid during inflation is further effectively avoided, the structure of the crema is not easily damaged, the stability and integrity of the crema are avoided to be affected, and the rapid disappearance of the regenerated crema is effectively avoided.

[0016] 3. In the present application, the plurality of floating plates are provided, the floating plates block the coffee liquid flowing upward along the inner wall of the coffee container, direct contact between the coffee liquid flowing upward along the inner wall of the coffee container and the crema on the surface of the coffee liquid is avoided, the stability and integrity of the crema are ensured, and the rapid disappearance of the regenerated crema is effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 The present application is a structural schematic view;

[0018] Fig. 2The structure schematic diagram of the utility model in actual use.

[0019] Fig. 3 The whole structure schematic diagram of the utility model.

[0020] In the drawing,

[0021] 1, inflation pipe; 2, inflation hole; 3, cover; 4, through hole; 5, connecting rod; 6, circular ring; 7, floating plate; 8, adjusting mechanism; 9, detection mechanism; 10, equipment main body. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] As shown in Figs. 1-3 A kind of espresso coffee oil regeneration equipment, including inflation pipe 1, inflation pipe 1 bottom is provided with inflation hole 2, inflation hole 2 is directly opposite the coffee container inner chamber bottom in use, inflation pipe 1 is connected with gas supply equipment.

[0024] In one case of the embodiment, inflation pipe 1 is installed on equipment main body 10, gas supply equipment can be inflation pump, can also be other equipment capable of gas supply, gas supply equipment is installed in equipment main body 10.

[0025] In practical application, the embodiment is inserted into the coffee container filled with coffee by gas supply equipment to inflation pipe 1, and makes inflation pipe 1 be located on the central axis of coffee container, so that inflation hole 2 is directly opposite the coffee container inner chamber bottom, at this time, injected gas will enter into coffee, so that crema is regenerated;The pressure of injected gas increases the bottom region of coffee liquid, so that gas pushes coffee liquid to move outward, so that coffee liquid flows upward along the inner wall of coffee container, so that the structure of crema is not easily damaged, so that the stability and integrity of crema are avoided to be affected, and the regenerated crema is effectively avoided to disappear quickly.

[0026] In addition, the caliber of inflation hole 2 is relatively smaller than ordinary gas injection hole, so that the resistance of gas entering coffee liquid can be increased, so that larger coffee flow is avoided, so that the coffee liquid is further avoided to be in agitated state when inflating, so that the structure of crema is not easily damaged.

[0027] Further, the outer periphery of the inflation pipe 1 is provided with an outer cover 3, the bottom of the outer cover 3 is attached to the bottom of the inner cavity of the coffee container, and a plurality of through holes 4 are formed in the outer periphery of the outer cover 3.

[0028] In actual application, the outer cover 3 can effectively block the injected gas, so that the gas entering the coffee liquid is buffered, effectively avoiding the coffee liquid flowing too fast due to the too fast flow of the gas, and the plurality of through holes 4 make the flow range of the gas after injection smaller, so that the area of the coffee liquid flowing upward along the inner wall of the coffee container is smaller, further effectively avoiding the coffee liquid in the state of being stirred during inflation, so that the structure of the crema is not easily damaged, avoiding affecting the stability and integrity of the crema, and effectively avoiding the rapid disappearance of the regenerated crema.

[0029] Further, the outer periphery of the inflation pipe 1 is provided with a plurality of connecting rods 5, the other end of the plurality of connecting rods 5 is fixed on the same circular ring 6, and the bottom of the circular ring 6 is rotatably connected with a plurality of floating plates 7.

[0030] Further, the plurality of floating plates 7 are attached to each other.

[0031] Further, the outer diameter of the circular ring 6 is equal to the inner diameter of the coffee container.

[0032] In actual application, the floating plate 7 can block the coffee liquid flowing upward along the inner wall of the coffee container, avoid the coffee liquid flowing upward along the inner wall of the coffee container directly contacting the crema on the surface of the coffee liquid, thereby ensuring the stability and integrity of the crema, and effectively avoiding the rapid disappearance of the regenerated crema;

[0033] After inflation is completed and the crema is formed, the inflation pipe 1 is pulled upward, so that the circular ring 6 drives the plurality of floating plates 7 to move upward, the plurality of floating plates 7 will slowly overturn downward when moving upward, and the floating plate 7 will slowly approach the inner wall of the coffee container and move upward along the inner wall of the coffee container, thereby effectively avoiding the floating plate 7 from taking away the crema on the surface of the coffee liquid when moving upward, thereby ensuring the integrity of the crema.

[0034] As shown in Figs. 1-3 The inflation pipe 1 is connected with an adjusting mechanism 8, the adjusting mechanism 8 is located between the inflation pipe 1 and the gas supply device, and the adjusting mechanism 8 is connected with a control unit.

[0035] Further, the side of the connecting rod 5 close to the floating plate 7 is provided with a detection mechanism 9, and the detection mechanism 9 is connected with the control unit.

[0036] In one case of the embodiment, the adjusting mechanism 8 is used to adjust the injection amount and injection pressure of the gas; the detecting mechanism 9 is used to detect the thickness of the crema; the control unit can be a computer terminal, the control unit controls the operation of the adjusting mechanism 8 and the detecting mechanism 9, the control unit is installed in the equipment body 10, the outer surface of the equipment body 10 is provided with a related control panel; the adjusting mechanism 8 and the detecting mechanism 9 are all prior arts, and will not be described in detail here.

[0037] In actual application, the adjusting mechanism 8 sets an initial injection amount and injection pressure first, the gas enters the coffee liquid through the gas filling pipe 1, then the thickness of the crema is detected by the detecting mechanism 9, if the thickness is not up to the standard (the thickness of the crema is up to the standard when the thickness is 10% and above of the volume of the coffee), the injection amount and injection pressure of the gas are adjusted by the adjusting mechanism 8 until the thickness of the crema is up to the standard, so that the crema is recovered and the quality of the coffee is improved.

[0038] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model.

Claims

1. An espresso crema regenerating device, characterized in that, Including the inflation pipe (1), the inflation pipe (1) bottom is provided with inflation hole (2), inflation hole (2) is opposite to the coffee container inner chamber bottom in use, the inflation pipe (1) is connected with the air supply equipment.

2. The espresso crema regenerating device according to claim 1, characterized in that, The periphery of the inflation pipe (1) is provided with an outer cover (3), the bottom of the outer cover (3) is attached to the bottom of the coffee container inner chamber, and a plurality of through holes (4) are formed on the periphery of the outer cover (3).

3. The espresso crema regenerating device according to claim 1, characterized in that, The periphery of the inflation pipe (1) is provided with a plurality of connecting rods (5), the other end of the plurality of connecting rods (5) is fixed on the same ring (6), and the bottom of the ring (6) is rotatably connected with a plurality of floating plates (7).

4. The espresso crema regenerating device according to claim 3, characterized in that, The plurality of floating plates (7) are attached to each other.

5. The espresso crema regenerating device according to claim 4, characterized in that, The outer diameter of the ring (6) is equal to the inner diameter of the coffee container.

6. The espresso crema regenerating device according to claim 1, characterized in that, The inflation pipe (1) is connected with an adjusting mechanism (8), the adjusting mechanism (8) is located between the inflation pipe (1) and the air supply equipment, and the adjusting mechanism (8) is connected with a control unit.

7. The espresso crema regenerating device according to claim 3, characterized in that, The side of the connecting rod (5) close to the floating plate (7) is provided with a detection mechanism (9), and the detection mechanism (9) is connected with the control unit.