Press type coffee extraction cake removing device

Abstract

The pressing type coffee extraction cake removing device comprises a shell, the shell is provided with a key, a funnel is arranged in the shell, a filter screen structure is arranged in the funnel, the filter screen structure is provided with a linkage shaft which penetrates through the bottom face of the funnel and makes contact with the key, and the linkage shaft is sleeved with a first spring; the filter screen structure is further provided with a dripping part penetrating through the funnel, the shell is provided with a second spring, the end of the second spring is provided with a blocking part penetrating through the dripping part, and in the non-extraction state, the blocking part blocks the dripping part through the acting force of the second spring; when the internal pressure is greater than the acting force of the second spring, the plugging part is forced to be separated from the dripping part, so that the dripping part is opened, and coffee liquid drips and cakes are removed, the key is pressed, the linkage shaft drives the filter screen structure to move upwards, so that the coffee cakes are pushed to realize cake removal, and finally, the filter screen structure is reset under the recovery acting force of the first spring. And therefore, cake removal is easier to realize.

Description

Technical Field

[0001] This utility model relates to the field of coffee extraction, and more particularly to a press-type coffee extraction and decanting device. Background Technology

[0002] A coffee machine is an electrical appliance used for making coffee. They are generally divided into semi-automatic and fully automatic types. A semi-automatic coffee machine is a traditional Italian coffee machine where grinding, tamping, filling, brewing, and cleaning of coffee grounds are done manually. A fully automatic coffee machine is one that automates the entire coffee brewing process, including preheating, cleaning, grinding, tamping, brewing, and pouring, according to scientific data and procedures. With the improvement of living standards, coffee has gradually become a common beverage. Due to the fast pace of life, coffee machines that can quickly brew coffee are popular. These coffee machines generally have a funnel with a handle at the extraction port; however, in these and similar products, after extraction, the coffee puck in the portafilter, after being steeped in hot water, is difficult to dislodge from the funnel by tilting the machine. Utility Model Content

[0003] To solve the above problems, this technical solution provides a press-type coffee extraction and depaneling device.

[0004] To achieve the above objectives, the technical solution is as follows:

[0005] A press-type coffee extraction and decanting device includes a housing, a button on the housing, a funnel inside the housing, a filter structure inside the funnel, a linkage shaft passing through the bottom surface of the funnel and contacting the button on the filter structure, and a first spring sleeved on the linkage shaft.

[0006] The filter structure also has a dripping part that passes through the funnel, and the outer shell has a second spring, the end of which has a sealing part that passes through the dripping part.

[0007] In some embodiments, the outer periphery of the button is provided with multiple buckles, and the inner wall of the housing is provided with a snap-fit ​​step that cooperates with the buckles.

[0008] In some embodiments, the button is further provided with a positioning post, the funnel is provided with a positioning groove through which the positioning post passes, and the positioning post is fitted with a third spring that abuts against the outer wall of the positioning groove.

[0009] In some embodiments, a sealing ring is provided between the outer wall of the filter structure and the funnel.

[0010] In some embodiments, the filter structure includes a filter support and a filter detachably connected to the filter support.

[0011] In some embodiments, the filter screen has a plurality of filter holes with a diameter of 0.15mm-0.4mm.

[0012] In some embodiments, the funnel, viewed in cross-section, has a first inclined section, a second inclined section, and a third inclined section arranged sequentially from bottom to top on its inner wall.

[0013] In some embodiments, the draft angle of the first inclined section is 0.3-0.6 degrees, the draft angle of the second inclined section is 5-15 degrees, and the draft angle of the third inclined section is 0.3-0.6 degrees.

[0014] The beneficial effects of this application are:

[0015] In the unextracted state, the second spring forces the sealing part to block the dripping part. During extraction, the internal pressure is greater than the force of the second spring, forcing the sealing part to detach from the dripping part, thus opening the dripping part and allowing the coffee liquid to drip. When removing the coffee cake, pressing the button moves the filter structure upward through the linkage shaft, thereby pushing the coffee cake to remove it. Finally, it resets under the restoring force of the first spring, making it easier to remove the coffee cake. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1 This is a cross-sectional schematic diagram of an embodiment of the present utility model. Figure 1 ;

[0018] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present utility model. Figure 2 . Detailed Implementation

[0019] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] Please refer to Figure 1-2 As shown, a press-type coffee extraction and decanting device includes a housing 1, a button 2, a funnel 3 inside the housing 1, a filter structure inside the funnel 3, a linkage shaft 4 passing through the bottom surface of the funnel 3 and contacting the button 2, and a first spring 5 sleeved on the linkage shaft 4.

[0021] The filter structure is further provided with a dripping part 6 that passes through the funnel 3, and the outer shell 1 is provided with a second spring 7, the end of the second spring 7 being provided with a sealing part 8 that passes through the dripping part 6.

[0022] In the unextracted state, this application utilizes the force of a second spring to block the drip section. During normal extraction, under the pressure of high-pressure steam from the brewing head, as the internal pressure of the funnel increases and exceeds the pressure the spring can withstand, the pressure relief value reaches 5-9 bar, forcing the blocking part to detach from the drip section to maintain the pressure required for extraction. This opens the drip section, allowing the coffee liquid to drip, effectively solving the problem of continuous dripping after extraction in current coffee machines. When removing the coffee cake, pressing the button moves the filter structure upward via the linkage shaft, thereby pushing the coffee cake to remove it. Finally, it resets under the restoring force of the first spring, making it easier to remove the coffee cake.

[0023] In this embodiment, the button 2 is provided with multiple buckles 9 on its outer periphery, and the inner wall of the outer shell 1 is provided with a snap-fit ​​step 10 that cooperates with the buckles 9. This makes installation convenient. When pressed, the buckles slide above the snap-fit ​​step, and when reset, the spring force cooperates with the snap-fit ​​step to achieve fixation.

[0024] In this embodiment, the button 2 is further provided with a positioning post 11, and the funnel 3 is provided with a positioning groove 12 through which the positioning post 11 passes. The positioning post 11 is fitted with a third spring 13 that abuts against the outer wall of the positioning groove 12. When pressed, the positioning post extends into the positioning groove, so that the button can move up and down in the axial direction without causing positional deviation. In addition, the restoring force of the third spring further increases the reset effect of the button.

[0025] In this embodiment, a sealing ring 14 is provided between the outer wall of the filter structure and the funnel 3. In the normal non-extraction and extraction states of the filter support frame, the O-ring seal is clamped between the filter support frame and the bottom plane of the funnel, which can play a good sealing role and ensure the pressure during coffee extraction.

[0026] In this embodiment, the filter structure includes a filter support 15 and a filter 16 detachably connected to the filter support 15.

[0027] In this embodiment, the filter screen 16 is provided with a plurality of filter holes with a diameter of 0.15mm-0.4mm.

[0028] In this embodiment, the funnel 3, viewed in cross-section, has a first inclined section 17, a second inclined section 18, and a third inclined section 19 arranged sequentially from bottom to top on its inner wall.

[0029] In this embodiment, the draft angle of the first inclined section 17 is 0.3-0.6 degrees, the draft angle of the second inclined section 18 is 5-15 degrees, and the draft angle of the third inclined section 19 is 0.3-0.6 degrees.

[0030] The inner wall of the funnel is wider at the top and narrower at the bottom. To achieve better coffee puck release, the inner wall of the coffee funnel has three or more sections of draft angle, or multiple connected arcs. The purpose is to effectively detach the coffee puck from the wall when it is pushed upwards a certain distance, making it easier to release. The optimal design is a draft angle of 0.3-0.6 degrees at the bottom. If it is too large, coffee grounds will easily remain in the gaps and be difficult to clean. The draft angle in the middle section is 5-15 degrees, and the draft angle at the top is 0.3-0.6 degrees. If the draft angle in this section is too large, it will be impossible to maintain a high pressure and high temperature environment during coffee extraction.

[0031] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.

Claims

1. A press-type coffee extraction and decanting device, characterized in that, Includes a housing (1), the housing (1) is provided with a button (2), the housing (1) is provided with a funnel (3), the funnel (3) is provided with a filter structure, the filter structure is provided with a linkage shaft (4) that passes through the bottom surface of the funnel (3) and contacts the button (2), and the linkage shaft (4) is sleeved with a first spring (5); The filter structure is also provided with a dripping part (6) that passes through the funnel (3), and the outer shell (1) is provided with a second spring (7), the end of the second spring (7) is provided with a sealing part (8) that passes through the dripping part (6).

2. The press-type coffee extraction and decanting device according to claim 1, characterized in that: The button (2) has multiple buckles (9) on its outer periphery, and the inner wall of the outer shell (1) has a snap-fit ​​step (10) that cooperates with the buckles (9).

3. The press-type coffee extraction and decanting device according to claim 2, characterized in that: The button (2) is also provided with a positioning post (11), and the funnel (3) is provided with a positioning groove (12) through which the positioning post (11) passes. The positioning post (11) is fitted with a third spring (13) that abuts against the outer wall of the positioning groove (12).

4. The press-type coffee extraction and decanting device according to claim 1, characterized in that: A sealing ring (14) is provided between the outer wall of the filter structure and the funnel (3).

5. The press-type coffee extraction and decanting device according to claim 1, characterized in that: The filter structure includes a filter support (15) and a filter (16) detachably connected to the filter support (15).

6. The press-type coffee extraction and decanting device according to claim 5, characterized in that: The filter screen (16) has multiple filter holes with a diameter of 0.15mm-0.4mm.

7. The press-type coffee extraction and decanting device according to claim 1, characterized in that: The funnel (3) has, in cross-section, a first inclined section (17), a second inclined section (18), and a third inclined section (19) arranged sequentially from bottom to top on its inner wall.

8. The press-type coffee extraction and decanting device according to claim 7, characterized in that: The draft angle of the first inclined section (17) is 0.3-0.6 degrees, the draft angle of the second inclined section (18) is 5-15 degrees, and the draft angle of the third inclined section (19) is 0.3-0.6 degrees.

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