Coffee filtering device of high-pressure coffee machine

Abstract

The coffee filtering device of the high-pressure coffee machine comprises a filter screen powder bowl, a liquid outlet assembly and a filter box main body, an annular step is arranged at the bottom in the filter box main body, the liquid outlet assembly comprises a liquid outlet main body, a filter screen, a sealing rubber ring and a liquid outlet cover, the sealing rubber ring is sleeved on the outer edge of the liquid outlet main body and arranged on the annular step, and the filter screen is arranged on the liquid outlet cover. A pressurizing head used for increasing liquid outlet pressure is arranged on the lower portion of the liquid outlet body and comprises a liquid outlet small hole, a water distribution column and a liquid outlet cover, the filter screen used for being matched with coffee capsules is arranged on the liquid outlet body, the filter screen powder bowl is of an integral cylindrical stainless steel structure, and a plurality of small holes are evenly distributed in the bottom of the filter screen powder bowl. And the edge of the outer bottom of the filter screen powder bowl tightly presses the sealing rubber ring for sealing. The coffee machine is simple in structure and convenient to use, can be used for making bottomless high-pressure espresso coffee, pressurized espresso coffee and capsule coffee by using superfine espresso coffee powder, common espresso coffee powder and coffee capsules, and realizes multiple functions.

Description

Technical Field

[0001] The utility model relates to the field of coffee brewing utensils, in particular to a coffee filter device of a high-pressure coffee machine. Background Art

[0002] At present, the filter device of the high-pressure coffee machine generally uses ordinary Italian coffee powder and is also compatible with coffee capsules. However, the structures vary greatly, and each has its own advantages and disadvantages. Some parts are easy to lose when the user is in use, resulting in loss of function; some are inconvenient to clean; and some have too many parts, causing users to install them incorrectly, upside down, or miss them, affecting the function and user experience.

[0003] In addition, existing high-pressure coffee machine filtering devices generally cannot integrate the structure of a bottomless high-pressure device, a pressurizing device structure, and a coffee capsule extraction structure. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the existing technology and provide a coffee filter device for a high-pressure coffee machine. The device has a simple structure, is easy to assemble and disassemble, is convenient to use, and has comprehensive functions. It can use ultra-fine espresso powder, ordinary espresso powder, and coffee capsules to produce bottomless high-pressure espresso, pressurized espresso, and capsule coffee, thereby meeting the various usage needs of consumers.

[0005] The technical solution adopted by the utility model is as follows: the utility model mainly introduces the structure of a coffee filter device of a high-pressure coffee machine, comprising a filter powder bowl, a liquid outlet component, and a filter box body, the inner bottom of the filter box body is provided with an annular step, the liquid outlet component comprises a liquid outlet body, a filter, a sealing rubber ring, and a liquid outlet cover, the outer edge of the liquid outlet body is covered with the sealing rubber ring and placed on the annular step, the lower part of the liquid outlet body is provided with a booster head, the booster head comprises liquid outlet holes, a water dividing column, and a liquid outlet cover, the filter powder bowl is an integral cylindrical stainless steel structure and has a plurality of small holes evenly distributed on the bottom, the outer bottom edge of the filter powder bowl presses the sealing rubber ring to seal, the liquid outlet body is also provided with the filter for adapting to coffee capsules, the surface of the filter is evenly distributed with a plurality of filter micropores connected with the booster head and a plurality of raised fulcrums, the inner side of the sealing rubber ring is provided with a groove, which is covered on the outer edge of the liquid outlet body, and the inner upper side of the sealing rubber ring covers the edge of the filter.

[0006] As an improvement to the above solution, the liquid outlet cap with internal threads can be adapted to connect with the lower portion of the liquid outlet body with external threads, and a liquid outlet is provided at the bottom of the liquid outlet cap. The liquid outlet hole is located at the bottom of the liquid outlet body, facing the center of the water diversion column. The center of the water diversion column is solid, and there are liquid outlet channels on the top, sides, and bottom. The diameter of the liquid outlet hole is 0.4mm~0.5mm, which can generate resistance when discharging coffee and increase the pressure of the device. There are multiple ribs between the liquid outlet at the bottom of the liquid outlet cap and the water diversion column, which are connected into one body. Liquid outlet channels are left between the ribs, simplifying the structure.

[0007] The device is also adapted for a capsule sleeve specifically for extracting coffee capsules, the upper edge of which has a raised step that rests on the upper edge of the filter box body. The internal shape of the capsule sleeve is adapted to the coffee capsule, and the top surface of the capsule sleeve is equipped with a ring-shaped raised needle for puncturing the coffee capsule. The lower end surface of the capsule sleeve presses against the edge step of the coffee capsule.

[0008] The implementation of this utility model has the following beneficial effects:

[0009] Suitable for common espresso coffee powder, the filter powder bowl, the filter box body and the liquid outlet assembly are used in combination to prepare pressurized espresso coffee, which can automatically maintain pressure and improve the quality of espresso coffee.

[0010] By adding the capsule sleeve, espresso can be made with the coffee capsule without the filter powder bowl.

[0011] Suitable for ultra-fine espresso coffee powder, high-pressure bottomless concentrated espresso coffee can be prepared by directly using the filter powder bowl and the filter box body.

[0012] This demonstrates its comprehensive functionality, meeting the coffee drinking needs of diverse users in various scenarios. This portable coffee machine, in particular, allows users to make their own coffee anytime, anywhere. Its simple structure and easy assembly and disassembly allow for easy operation without complex instructions. It is also fully washable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the internal structure of the first embodiment of the present utility model.

[0014] Figure 2 It is a schematic diagram of the exploded structure of the first embodiment of the present invention.

[0015] Figure 3 It is a schematic diagram of the internal structure of the second embodiment of the present utility model.

[0016] Figure 4 It is a schematic diagram of the exploded structure of the second embodiment of the present utility model.

[0017] Figure 5 It is a schematic diagram of the internal structure of the third embodiment of the present utility model.

[0018] Figure 6 It is a schematic diagram of the exploded structure of the third embodiment of the present invention.

[0019] Figure 7 It is a three-dimensional schematic diagram showing that the liquid outlet cover and the water dividing column are integrated into one body according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0020] Example 1:

[0021] like Figure 1 、 Figure 2 As shown, in this embodiment, the coffee machine body is a portable small-sized high-pressure coffee machine. The utility model mainly introduces the structure of its coffee filter device, including a filter powder bowl (1), a liquid outlet assembly (20), and a filter box body (3). The inner bottom of the filter box body (3) is provided with an annular step (4). The liquid outlet assembly (20) includes a liquid outlet body (2), a filter (10), a sealing rubber ring (5), and a liquid outlet cover (9). The outer edge of the liquid outlet body (2) is covered with the sealing rubber ring (5) and placed on the annular step (4). The inner side of the sealing rubber ring (5) is provided with an annular groove, which is covered on the outer edge of the liquid outlet body (2). A booster head (6) is provided at the lower part of the liquid outlet body (2). The booster head (6) includes a liquid outlet hole (7), a water column (8), and a liquid outlet cover (9). The filter powder bowl (1) is an integral cylindrical stainless steel structure with a plurality of small holes (13) evenly distributed on the bottom. The outer bottom edge of the filter powder bowl (1) presses the sealing rubber ring (5) to seal.

[0022] In this embodiment, the user uses ordinary Italian coffee powder, and the filter powder bowl (1) and the liquid outlet assembly (20) are arranged in the filter box body (3) in sequence, wherein the filter powder bowl (1) does not contact the filter (10) but only contacts the lower sealing rubber ring (5). The booster head (6) can automatically maintain the pressure and increase the liquid outlet pressure. The filter box body (3) is provided with an external thread that is adapted to be connected to the coffee machine body. The structure is simple, easy to disassemble and assemble, and convenient to clean. The diameter of the small hole (13) is about 0.3 mm / hole, and the diameter of the filter powder bowl (1) is 52 mm, which can accommodate about 18 g of coffee powder. Based on these parameters, the booster head (6) can effectively ensure the pressure and extraction effect of coffee extraction.

[0023] In this working mode, the filter (10) is placed on the liquid outlet body (2). Although the effect of improving coffee extraction is not obvious, it is convenient for users to not disassemble the filter (10). The filter (10) plays an important role in coffee extraction when using coffee capsules. In order to prevent the filter (10) from being scattered or lost when the user uses it, the inner upper edge of the sealing rubber ring (5) covers the edge of the filter (10).

[0024] Furthermore, the liquid outlet cap (9) provided with internal threads can be adapted to be connected with the lower portion of the liquid outlet body (2) provided with external threads, and the bottom of the liquid outlet cap (9) is provided with a liquid outlet. The liquid outlet hole (7) is located at the bottom of the liquid outlet body, facing the center of the water column (8). The center of the water column (8) is solid, and has liquid outlet channels on the top, side, and bottom. Figure 7 As shown, a plurality of ribs (14) are connected to form a whole between the liquid outlet at the bottom of the liquid outlet cover (9) and the water diversion column (8), and liquid outlet channels are left between the ribs (14).

[0025] In order to increase the pressure of the device, the diameter of the liquid outlet hole (7) is 0.4mm~0.5mm, which can generate appropriate pressure. The water column (8) can block the coffee jet and prevent it from splashing out. The liquid outlet channel around the water column (8) helps the coffee liquid to flow out smoothly, thereby extracting high-quality pressurized concentrated coffee.

[0026] Example 2:

[0027] like Figure 3 、 Figure 4 As shown, the difference between this embodiment and the first embodiment is that: the user uses coffee capsule extraction, and a capsule sleeve (16) specially adapted for coffee capsule extraction is also provided, and the capsule sleeve (16) is placed in the filter box body (3). The upper edge of the capsule sleeve (16) has a raised step and rests on the upper edge of the filter box body (3). The capsule sleeve (16) is pressed and sealed with the main body joint rubber ring (15) of the coffee machine. The internal shape of the capsule sleeve (16) is adapted to the coffee capsule (17). The top surface of the capsule sleeve (16) is provided with a ring-shaped raised needle (18) that can pierce the upper surface of the coffee capsule (17) so that water can enter the coffee capsule (17). The capsule sleeve (16) can fix the position of the coffee capsule (17) and maintain the stability of the coffee capsule (17) during extraction. The lower end surface of the capsule sleeve (16) is pressed against the edge of the coffee capsule (17), and the bottom membrane of the coffee capsule (17) is in close contact with the top surface of the filter (10).

[0028] The upper surface of the filter (10) is evenly distributed with a plurality of raised fulcrums (12) and filter micropores (11). When high-pressure water flows through the main body of the coffee machine, the bottom membrane of the coffee capsule (17) is punctured by the raised fulcrums (12) on the upper surface of the filter (10) under the action of pressure, and the coffee liquid flows through the liquid outlet holes (7) and finally flows out through the liquid outlet cover (9). When the coffee capsule (17) is used to make coffee, the booster head (6) has no adverse effect on the effect of extracting coffee, and on the other hand, it helps to maintain the outlet pressure and improve the quality of coffee. Therefore, in this embodiment, there is no need to remove the booster head (6), which can avoid the trouble of disassembly and assembly and is convenient for users.

[0029] Example 3:

[0030] like Figure 5 、 Figure 6 As shown, the difference between this embodiment and the first embodiment is that: the user uses ultra-fine espresso coffee powder, high-pressure bottomless extraction, the coffee powder (19) is placed in the filter powder bowl (1), the filter powder bowl (1) is placed in the filter box body (3), and at the same time, the top edge of the filter powder bowl (1) is placed on the top edge of the filter box body (3), and the filter powder bowl (1) and the main body joint rubber ring (15) of the coffee machine are pressed and sealed. In this mode, there is no need to install the liquid outlet component (20). The liquid outlet component (20) is a whole and will not be easily scattered. When the user does not need to use it, it can be easily taken out.

[0031] Although the embodiments of the present invention are described in terms of actual solutions, they do not limit the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme according to this specification and combine it with other solutions without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A coffee filter device for a high-pressure coffee machine, characterized in that: The invention comprises a filter powder bowl (1), a liquid outlet assembly (20), and a filter box body (3); the inner bottom of the filter box body (3) is provided with an annular step (4); the liquid outlet assembly (20) comprises a liquid outlet body (2), a filter screen (10), a sealing rubber ring (5), and a liquid outlet cover (9); the outer edge of the liquid outlet body (2) is covered with the sealing rubber ring (5) and is placed on the annular step (4); a booster head (6) is provided at the lower part of the liquid outlet body (2); the booster head (6) comprises a liquid outlet hole (7), a water separation column (8), and a liquid outlet cover (9); the filter powder bowl (1) is an integral cylindrical stainless steel structure with a plurality of small holes (13) evenly distributed on the bottom; the outer bottom edge of the filter powder bowl (1) presses the sealing rubber ring (5) to seal.

2. The coffee filter device of a high-pressure coffee machine according to claim 1, characterized in that: The liquid outlet cover (9) provided with an internal thread can be adaptively connected to the lower part of the liquid outlet body (2) provided with an external thread, and a liquid outlet is provided at the bottom of the liquid outlet cover (9).

3. The coffee filter device of a high-pressure coffee machine according to claim 1, characterized in that: The liquid outlet hole (7) is located at the bottom of the liquid outlet body, facing the center of the water dividing column (8). The center of the water dividing column (8) is solid, and there are liquid outlet channels on the top, side and bottom of the column.

4. The coffee filter device of a high-pressure coffee machine according to claim 1, characterized in that: The liquid outlet body (2) is also provided with a filter (10) for fitting a coffee capsule (17), and a plurality of raised supporting points (12) and filter micropores (11) are evenly distributed on the upper surface of the filter (10).

5. The coffee filter device of a high-pressure coffee machine according to claim 1, characterized in that: An annular groove is provided on the inner side of the sealing rubber ring (5) and is sleeved on the outer edge of the liquid outlet body (2).

6. The coffee filter device of a high-pressure coffee machine according to claim 1, characterized in that: The inner upper side of the sealing rubber ring (5) covers the edge of the filter screen (10).

7. The coffee filter device of a high-pressure coffee machine according to claim 4, characterized in that: In addition, a capsule sleeve (16) is specially adapted for the coffee capsule (17), and its upper edge has a raised step, which rests on the upper edge of the filter box body (3). The internal shape of the capsule sleeve (16) is adapted to the coffee capsule (17), and the inner top surface is equipped with a ring-shaped raised needle (18).

8. The coffee filter device of a high-pressure coffee machine according to claim 1, characterized in that: A plurality of ribs (14) are connected between the liquid outlet at the bottom of the liquid outlet cover (9) and the water dividing column (8) to form a whole, and liquid outlet channels are left between the ribs (14).

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