CN215583862U

CN215583862U - Air pressure coffee filtering device

Info

Publication number: CN215583862U
Application number: CN202121841591.7U
Authority: CN
Inventors: 赵庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-01-21
Anticipated expiration: 2031-08-06
Also published as: WO2023011027A1

Abstract

The utility model discloses an air pressure coffee filtering device, which comprises a filtering main body, a pressurizing interface, a cover body and an air pressure generating device, wherein the filtering main body is provided with a filter hole; the filtering main body comprises a filtering cavity and a filtering net arranged at the bottom of the filtering cavity, and a plurality of filtering holes are formed in the filtering net; the cover body covers the filtering main body to seal the filtering cavity; the pressurizing connector is positioned above the filter screen, the first tail end of the pressurizing connector is communicated with the filter cavity, the second tail end of the pressurizing connector is positioned outside the filter main body, and the air pressure generating device is communicated with the second tail end of the pressurizing connector to increase the pressure in the filter cavity. The coffee powder filtering device is simple in integral structure and low in implementation cost, a consumer can increase the pressure in the filtering cavity according to needs, the speed of hot water flowing through the coffee powder is increased to increase the filtering speed, the hot water is extracted when flowing through the coffee powder quickly, and the coffee with good taste is prepared by filtering.

Description

Air pressure coffee filtering device

Technical Field

The utility model relates to the field of coffee brewing appliances, in particular to an air pressure coffee filtering device.

Background

The coffee is made carefully, and parameters such as water temperature, filtering speed, filtering pressure and the like influence the taste of the made coffee. Wherein, the influence of the filtering pressure on the coffee taste is particularly direct: when the filtering pressure is higher, the coffee made by filtering has stronger taste; when the filtering pressure is lower, the taste of the coffee prepared by corresponding filtering is lighter.

The current coffee making devices mainly include steam pot type coffee makers, water pump type pressure coffee makers, siphon type coffee makers, mocha makers, drip type coffee makers, french press coffee makers, and the like, which provide filtration to make coffee. These appliances are not only relatively complex in structure, but also can only maintain the preset brewing pressure of the appliance during making coffee without manual adjustment, or the manual adjustment of the filtering pressure is relatively cumbersome, which is inconvenient for consumers to operate and use.

Of course, various simple sieves are used to make coffee in the prior art, but making coffee by using a sieve is not limited by the structural conditions of the sieve itself, but also requires experience to control conditions such as flow rate, stirring degree, and filtering time, so that making coffee of good quality is not easy, and is difficult to popularize due to high operation requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical defects in the prior art, and provides the air pressure coffee filtering device which is simple in structure and capable of adjusting the filtering pressure as required, so that a consumer can conveniently and quickly make coffee with good taste.

The utility model provides an air pressure coffee filtering device, which comprises a filtering main body 2, a pressurizing connector 3, a cover body 4 and an air pressure generating device 7; the filtering main body 2 comprises a filtering cavity 21, a coffee outlet 211 arranged at the bottom of the filtering cavity 21 and a filter screen 22 positioned above the coffee outlet 211, and a plurality of filtering holes are formed in the filter screen 22; the cover body 4 is covered on the filtering main body 2 to seal the filtering cavity 21; the pressurizing connector 3 is located above the filter screen 22, a first end of the pressurizing connector 3 is communicated with the filter cavity 21, a second end of the pressurizing connector 3 is located outside the filter body 2, and the air pressure generating device 7 is communicated with a second end of the pressurizing connector 3 to increase the pressure in the filter cavity 21.

In a preferred embodiment, the air pressure generating device is disposed inside the cover body.

In a preferred embodiment, the cover body comprises an inner cover and an outer cover which is connected with the inner cover in a covering mode, and a containing cavity is formed between the inner cover and the outer cover; the pressurizing interface is arranged on the inner cover, and the air pressure generating device is positioned in the accommodating cavity.

In a preferred embodiment, the outer cover is provided with an exhaust port, and the air pressure generating device is arranged between the pressurization interface and the exhaust port in a communication mode.

In a preferred embodiment, a step portion 26 is provided at the bottom of the filter chamber 21, and the strainer 22 is detachably disposed on the step portion 26.

In a preferred embodiment, the upper end of the filter body is screwed with the cover body, and the lower end of the filter body is provided with a skirt part which is used for being butted with a pot opening of a coffee pot.

In a preferred embodiment, a sealing ring 5 is also provided between the cover 4 and the upper end of the filter body 2.

In a preferred embodiment, the pressure connection 3 is arranged at the upper end of the filter body 2, or the pressure connection 3 is arranged on the cover.

In a preferred embodiment, an air guide hose 8 may be provided between the second end of the pressurizing port 3 and the air pressure generating device 7 as required.

In a preferred embodiment, the air pressure generating means 7 is a hand or electric air pump.

In a preferred embodiment, the air pressure generating device 7 comprises a hand pump 71, the hand pump 71 having an inlet end and an outlet end, the inlet end being provided with a first one-way valve 72, and the outlet end being provided with a second one-way valve 73.

In a preferred embodiment, the air pressure coffee filtering device further comprises a screen 61 for pressing coffee powder onto the filter screen 22 and a handle 62 connected to the screen 61, the screen 61 having a plurality of water passing holes.

Compared with the prior art, the utility model has the following beneficial effects:

the coffee machine has the advantages of simple integral structure and low implementation cost, and the external air pressure generating device ensures that a consumer can increase the pressure in the filtering cavity of the filtering main body according to the requirement, so that the speed of hot water flowing through coffee powder is increased, the effect of increasing the filtering speed is achieved, the hot water is extracted when rapidly flowing through the coffee powder, and the coffee with good taste is prepared by filtering.

Drawings

Fig. 1 is an exploded view of the first embodiment of the present invention.

Fig. 2 is a schematic view of the internal structure of the first embodiment of the present invention.

Fig. 3 is a schematic view of the internal structure of the second embodiment of the present invention.

Fig. 4 is a schematic view of the internal structure of the third embodiment of the present invention.

Detailed Description

To further clarify the technical solutions and effects adopted by the present application to achieve the intended purpose, the following detailed description is given with reference to the accompanying drawings and preferred embodiments according to the present application. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

First embodiment

The utility model provides the air pressure coffee filtering device which is simple in structure and can adjust the filtering pressure as required, and a user can conveniently and quickly prepare coffee with good taste. As shown in fig. 1 and 2, the air pressure coffee filtering device specifically includes a filtering main body 2, a pressurizing port 3, a cover 4 and an air pressure generating device 7; the filtering main body 2 comprises a filtering cavity 21, a coffee outlet 211 arranged at the bottom of the filtering cavity 21 and a filter screen 22 positioned above the coffee outlet 211, and a plurality of filtering holes are formed in the filter screen 22; the cover body 4 is covered on the filtering main body 2 to seal the filtering cavity 21; the pressurizing connector 3 is located above the filter screen 22, a first end of the pressurizing connector 3 is communicated with the filter cavity 21, a second end of the pressurizing connector 3 is located outside the filter body 2, and the air pressure generating device 7 is communicated with a second end of the pressurizing connector 3 to increase the pressure in the filter cavity 21.

The number of the filtering holes on the filter screen 22 and the aperture size of each filtering hole are related to the particle size of the coffee powder, so that when the coffee powder is put on the filter screen 22 and hot water is added into the filtering cavity 21, the hot water is difficult to drop from the filtering holes after passing through the coffee powder in a non-pressurized environment.

Wherein, be equipped with step portion 26 in the bottom of filter chamber 21, filter screen 22 detachable sets up on step portion 26, and the filter screen 22 of taking off after the completion of use is washd.

Wherein, the lower end of filtering main part 2 is equipped with skirt portion 24, and when being convenient for place the lower end of filtering main part 2 at the hu kou of coffee pot 1, skirt portion 24 and the hu kou butt of coffee pot 1 for place the hu kou at coffee pot 1 that filtering main part 2 can be more steady, be convenient for from the coffee outlet 211 outflow brew coffee directly flow into coffee pot 1 in, thereby make things convenient for the consumer family to use.

In one embodiment, the cover 4 may be removably and sealingly attached to the upper end of the filter body 2 using any one of a number of known sealing attachments. For example, the upper end of the filter body 2 is screwed with the cover 4. The outer side surface of the upper end of the filtering main body 2 is provided with an external thread 25, the cover body 4 is correspondingly provided with an internal thread, the cover body 4 is connected with the external thread 25 in a screwing mode through the internal thread to seal the filtering cavity 21, so that the filtering cavity 21 forms a closed space, and realization conditions are provided for regulating the environment for making coffee by pressurizing the filtering cavity 21 through the air pressure generating device 7.

Preferably, a packing 5 is further provided between the cover 4 and the upper end of the filter body 2, and the packing 5 can improve the sealing performance between the cover 4 and the upper end of the filter body 2.

In this embodiment, the pressurizing port 3 is provided at the upper end of the filter body 2 so that the first end of the pressurizing port 3 is located at the upper end of the filter chamber 21. Furthermore, an air guide hose 8 (generally, a soft hose) may be disposed between the second end of the pressurizing connector 3 and the air pressure generating device 7 as required, so that the air pressure generating device 7 is communicated with the second end of the pressurizing connector 3 through the air guide hose 8. The relative distance between the air pressure generating device 7 and the filtering main body 2 can be changed through the air guide hose 8 so as to be convenient for the operation and use of consumers.

The air pressure generating device 7 is a hand-press air pump or an electric air pump, but not limited thereto. In order to reduce the use restriction, the present invention preferably employs the hand pump 71. Wherein, the hand air pump 71 has an air inlet end and an air outlet end, the air inlet end is provided with a first one-way valve 72, and the air outlet end is provided with a second one-way valve 73; and, the second check valve 73 is communicated with the air guide hose 8 through a connection joint 74.

When the hand pressing air pump 71 is used, a consumer holds the hand pressing air pump 71 and then continuously presses the hand pressing air pump 71, and the pressure in the filter cavity 21 is determined by the force and the frequency of pressing the hand pressing air pump 71 by the consumer. Generally, the hand-press air pump 71 is pressed to easily generate about 0.3 bar (bar) of pressure in the filter cavity 21, so that the quality of the coffee prepared by the utility model is higher than that of the coffee prepared by the existing drip coffee pot, and the effect of the existing mocha pot or steam pot type pressure coffee pot can be achieved. Therefore, although the pressure is generated, the pressure is not large and is not more than 0.3 bar (bar), so that the use is safe and reliable, and the use safety hazard of overlarge pressure is avoided.

In a preferred embodiment, a screen 61 (typically made of stainless steel) is included for pressing the coffee grounds against the screen 22, the screen 61 being provided with a plurality of water passing holes. In addition, a handle 62 is arranged on the separation net 61, and the separation net 61 is convenient for a user to take and place from the filter cavity 21 through the handle 62. The filter chamber 21 is divided into two sections by a spacer mesh 61: a coffee holding space for holding coffee powder is formed between the screen 61 and the sieve 22, and a space for adding water and pressurizing water is provided above the screen 61. The purpose of the screen 61 is to: the coffee powder is pressed in the coffee placing space between the separation net 61 and the filter screen 22 by the separation net 61, so that the coffee powder can be prevented from floating when water is added, and the concentration and the quality of the coffee can be improved.

When in use, the filter screen 22 is firstly placed on the step part 26 at the bottom of the filter cavity 21, a proper amount of coffee powder is taken and placed on the filter screen 22, and then the handle 62 is held by hand to place the separation net 61 in the filter cavity 21, so that the separation net 61 is pressed on the coffee powder; then, pouring a proper amount of hot water or boiled water into the filter cavity 21, wherein only a very small amount of the hot water poured into the filter cavity 21 flows into the lower coffee cup 1 from the filter holes on the filter screen 22 due to the small size of the filter holes on the filter screen 22, and most of the hot water is stopped by the coffee powder and is not automatically flowed into the lower coffee cup 1 in the filter cavity 21; the cover body 4 is screwed to seal the filter cavity 21, the hand-press air pump 71 is held and then pressed continuously, air is pressed into the filter cavity 21 through the hand-press air pump 71 to increase the pressure of hot water in the filter cavity 21, and the hot water is enabled to rapidly flow through coffee powder, filtered through the filter holes in the filter screen 22 and then flows into the coffee cup 1 at the lower part.

Therefore, the integral structure of the utility model is simple, the realization cost is low, the pressure in the filter cavity 21 can be adjusted by the consumer according to the requirement through the external air pressure generating device 7, thereby adjusting the speed of hot water flowing through the coffee powder, achieving the effect of adjusting the filtering speed, extracting when the hot water rapidly flows through the coffee powder, filtering and preparing the coffee with good taste, and having simple operation and convenient use.

Second embodiment

As shown in fig. 3, the embodiment mainly embodies: the pressurizing port 3 may be provided in the lid 4.

Third embodiment

In the first and second embodiments, the air pressure generating device 7 is disposed outside the cover 4 or outside the filter body 2, so that the air pressure generating device 7 can be removed or replaced as needed.

In the third embodiment shown in fig. 4, the air pressure generator 7 is built in the cover 4. The advantages of this structure are: the overall dimension of the air pressure coffee filtering device is small, and the air pressure coffee filtering device is convenient to carry, store and use; and simultaneously can prevent the air pressure generating device 7 from being lost.

Specifically, the cover body 4 includes an inner cover 41 and an outer cover 42 connected to the inner cover 41 in a covering manner, and a receiving cavity 43 is formed between the inner cover 42 and the outer cover 42; the pressurizing connector 3 is arranged on the inner cover 41, and the air pressure generating device 7 is positioned in the accommodating cavity 43. The air pressure generating device 7 may be provided with an air inlet 44 on the outer cover 42, and the air pressure generating device 7 is disposed between the pressurization port 3 and the air inlet 44 in a communication manner. The air pressure generating device 7 preferably adopts any one of the existing mechanical air pump and electric air pump.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An air pressure coffee filtering device is characterized by comprising a filtering main body (2), a pressurizing connector (3), a cover body (4) and an air pressure generating device (7); the filtering main body (2) comprises a filtering cavity (21), a coffee outlet (211) arranged at the bottom of the filtering cavity (21) and a filter screen (22) positioned above the coffee outlet (211), and a plurality of filtering holes are formed in the filter screen (22); the cover body (4) is covered on the filtering main body (2) to seal the filtering cavity (21); the pressurizing connector (3) is positioned above the filter screen (22), the first end of the pressurizing connector (3) is communicated with the filter cavity (21), the second end of the pressurizing connector (3) is positioned outside the filter main body (2), and the air pressure generating device (7) is communicated with the second end of the pressurizing connector (3) to increase the pressure in the filter cavity (21).

2. An air pressure coffee filter device according to claim 1, characterized in that said air pressure generating means (7) are arranged inside said cover body (4).

3. A filter device according to claim 2, wherein the cover body (4) comprises an inner cover (41) and an outer cover (42) coupled to the inner cover (41), a receiving chamber (43) being provided between the inner cover (41) and the outer cover (42); the pressurization interface (3) is arranged on the inner cover (41), and the air pressure generating device (7) is positioned in the accommodating cavity (43).

4. An air pressure coffee filtering device according to claim 3, characterized in that said outer cover (42) is provided with an air inlet (44), said air pressure generating means (7) being arranged in communication between said pressurizing port (3) and said air inlet (44).

5. A filter device according to claim 1, wherein a sealing ring (5) is further provided between the cover (4) and the upper end of the filter body (2).

6. A filter device according to claim 1, wherein the pressurizing port (3) is provided at the upper end of the filter body (2) or the pressurizing port (3) is provided on the cover body (4).

7. A filter device according to claim 1, wherein an air guide hose (8) is provided between the second end of the pressurizing port (3) and the air pressure generating device (7).

8. An air pressure coffee filter unit according to claim 1, characterised in that the air pressure generating means (7) comprises a hand pump (71), the hand pump (71) having an inlet end and an outlet end, a first one-way valve (72) being provided at the inlet end and a second one-way valve (73) being provided at the outlet end.

9. A filter unit according to claim 1, wherein the upper end of the filter body (2) is screwed to the lid (4), and the lower end of the filter body (2) is provided with a skirt (24) for abutting against the mouth of a coffee pot.

10. An air pressure coffee filtering device according to claim 1, further comprising a screen (61) for pressing the coffee powder onto the sieve (22) and a handle (62) connected to the screen (61), the screen (61) having a plurality of water passing holes.