Coffee brewing device

Abstract

The utility model relates to the technical field of brewing equipment, in particular to a coffee brewing device, which comprises a powder cylinder, a coffee maker, a coffee maker, a coffee maker and a coffee maker, and a plurality of filter holes are uniformly distributed on the side wall of the powder cylinder; the hollow rod is detachably connected to the top of the powder cylinder; the air bag is detachably connected to the upper end of the hollow rod; and the one-way air inlet mechanism is arranged at the top of the air bag. According to the coffee maker, the powder cylinder, the hollow rod, the air bag and the one-way air inlet mechanism are arranged, when coffee needs to be brewed, a user only needs to extrude the air bag with one hand, air in the air bag can be injected into the powder cylinder through the hollow rod, and therefore coffee powder in the powder cylinder is mixed with water. When a user loosens the air bag, outside air can be automatically supplemented into the air bag through the one-way air inlet mechanism, and coffee is effectively prevented from flowing back into the air bag. According to the air bag extrusion brewing mode, a supporting point does not need to be provided by an external container, the brewing action can be easily completed by one hand, and the operation flexibility and convenience are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of brewing equipment technology, specifically a coffee brewer. Background Technology

[0002] The main function of a coffee maker is to mix hot water and coffee grounds evenly, ensuring the coffee has the right strength and a smoother taste. During the brewing process, the hot water and coffee grounds pass through the filter plate of the maker, which filters out impurities and makes the coffee more delicious.

[0003] Patent CN215383224U discloses a coffee brewer, including a powder container with a filtering function. The powder container has a pressure plate inside, and the side of the pressure plate away from the bottom of the powder container is connected to a central shaft. The sliding motion of the central shaft causes the pressure plate to move in a piston-like motion within the powder container, creating water pressure in the hot water entering the container. This allows the hot water to more fully extract the coffee components from the coffee powder. The powder container also has a filtering function; when the pressure plate moves in a piston-like motion within the powder container, the coffee components are filtered out, while larger coffee grounds are retained, resulting in a purer brewed coffee. Because the bottom of the powder container is movably connected to a sash, larger coffee grounds can be removed by removing the sash, thus facilitating cleaning. Furthermore, by folding in the central shaft, the size of the device can be reduced, making it easier to carry. Therefore, this invention is worthy of promotion and application.

[0004] The aforementioned technical solution uses a pressing mechanism to cause the pressure plate to move like a piston within the coffee powder container, thus mixing the hot water and coffee. However, with this pressing brewing method, if the user operates with one hand, the bottom of the device needs to contact the inner bottom surface of the external container to provide a stable support point for smooth pressing of the pressure plate. If the external container is deep, the bottom of the device may not reach the inner bottom surface, forcing the user to use both hands to complete the brewing process. Therefore, the pressing brewing method has certain limitations in one-handed operation scenarios. To address these shortcomings, we propose a coffee brewer that effectively resolves these issues. Utility Model Content

[0005] The purpose of this invention is to provide a coffee brewer that addresses the limitations of the press-to-brew method in the prior art, as mentioned in the background section, when operated with one hand.

[0006] This utility model is achieved through the following technical solution: a coffee brewer, comprising:

[0007] The powder cylinder has several filter holes evenly distributed on its side wall;

[0008] A hollow rod, which is detachably connected to the top of the powder cylinder, with its lower end extending into the powder cylinder;

[0009] An airbag is detachably connected to the upper end of a hollow rod, and the inner cavity of the airbag communicates with the inner cavity of the hollow rod.

[0010] A one-way air intake mechanism is provided at the top of the airbag to allow external air to enter the inner cavity of the airbag in one direction.

[0011] Optionally, the powder cylinder is a frustum-shaped cylinder that is wider at the top and narrower at the bottom.

[0012] Optionally, the powder cylinder includes an upper cover, a cylinder body, and a bottom cover arranged sequentially from top to bottom. The upper cover is detachably connected to the upper end of the cylinder body, and the bottom cover is fixed to the lower end of the cylinder body.

[0013] Each filter hole is evenly distributed on the side wall of the cylinder, and the hollow rod is detachably connected to the top of the cover.

[0014] Optionally, the inner wall of the top cover is provided with a first internal thread, and the outer wall of the cylinder is provided with a first external thread that helically engages with the first internal thread; the top cover is detachably connected to the cylinder through the engagement of the first internal thread and the first external thread.

[0015] Optionally, a connecting sleeve is fixed to the top of the cover, and a second internal thread is provided on the inner wall of the connecting sleeve. A second external thread is provided on the lower outer wall of the hollow rod, which is helically engaged with the second internal thread. The hollow rod is detachably connected to the cover through the engagement of the connecting sleeve, the second internal thread, and the second external thread.

[0016] Optionally, a connector is fixed to the bottom of the airbag, and a third external thread is provided on the outer wall of the connector. A third internal thread is provided on the upper inner wall of the hollow rod, which is helically engaged with the third external thread. The airbag is detachably connected to the hollow rod through the engagement of the connector, the third external thread, and the third internal thread.

[0017] Optionally, the connector has a through hole running vertically through it; the through hole includes a large-diameter section, a variable-diameter section, and a small-diameter section arranged sequentially from top to bottom.

[0018] Optionally, the one-way air intake mechanism includes a top cover fixed to the top of the airbag, an air intake channel is provided inside the top cover, the air intake channel is T-shaped to allow the inner cavity of the airbag to communicate with the outside, and a one-way valve is installed in the air intake channel.

[0019] Compared with the prior art, the present invention provides a coffee brewer with the following advantages:

[0020] This invention, by incorporating a coffee maker, a hollow rod, an air bladder, and a one-way air intake mechanism, allows the user to brew coffee simply by squeezing the air bladder with one hand. This forces air from inside the air bladder into the coffee maker through the hollow rod, thus mixing the coffee grounds with water. When the user releases the air bladder, outside air automatically enters through the one-way air intake mechanism, effectively preventing coffee from flowing back into the air bladder. This air bladder-squeezing brewing method does not require an external container for support, allowing for easy one-handed brewing and greatly improving operational flexibility and convenience. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the connecting sleeve of this utility model;

[0023] Figure 3 This is an exploded view of the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of the present invention;

[0025] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0026] Figure 6 for Figure 4 Enlarged view of point B in the middle;

[0027] Figure 7 for Figure 4 Enlarged view of point C in the middle;

[0028] Figure 8 This is a schematic diagram of the unidirectional air intake mechanism of this utility model.

[0029] In the diagram: 1. Powder cylinder; 101. Top cover; 102. Cylinder body; 103. Bottom cover; 2. Filter hole; 3. Hollow rod; 4. Air bladder; 5. First internal thread; 6. First external thread; 7. Connecting sleeve; 8. Second internal thread; 9. Second external thread; 10. Connector; 11. Third external thread; 12. Third internal thread; 13. Connecting hole; 131. Large diameter section; 132. Variable diameter section; 133. Small diameter section; 14. One-way air intake mechanism; 141. Top cover; 142. Air intake channel; 143. One-way valve. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Because existing technology uses a press-to-brew method, which has certain limitations in one-handed operation scenarios, the press-to-brew method has been changed to an airbag squeezing method, thus achieving the effect of easily completing the brewing action with one hand.

[0032] Please see Figures 1 to 8 A coffee brewer includes: a powder container 1, a hollow rod 3, an air bladder 4, and a one-way air intake mechanism 14.

[0033] Specifically, the side wall of the coffee powder container 1 is evenly distributed with several filter holes 2, which can filter the coffee powder inside the container 1 and prevent larger particles from entering the external container and affecting the taste of the coffee. The hollow rod 3 is detachably connected to the top of the coffee powder container 1, and the lower end of the hollow rod 3 extends into the coffee powder container 1, thus communicating with the inner cavity of the coffee powder container 1. The air bladder 4 is detachably connected to the upper end of the hollow rod 3, and the inner cavity of the air bladder 4 communicates with the inner cavity of the hollow rod 3. When the air bladder 4 is squeezed, the air inside the air bladder 4 can enter the coffee powder container 1 through the hollow rod 3, allowing the coffee powder to mix with water. The one-way air intake mechanism 14 is set at the top of the air bladder 4 to allow external air to enter the inner cavity of the air bladder 4 in one direction.

[0034] With the above structure, when using the coffee, the user places the coffee cartridge 1 containing coffee powder into the external container, and then squeezes the air bladder 4 with one hand. This forces the air inside the air bladder 4 to be injected into the coffee cartridge 1 through the hollow rod 3, thus mixing the coffee powder with water. When the air bladder 4 is released, outside air can be automatically replenished into the air bladder 4 through the one-way air intake mechanism 14, thereby preventing coffee from flowing back into the hollow rod 3 and the air bladder 4, and avoiding contamination of the air bladder 4. This process is repeated, allowing air to enter through the one-way air intake mechanism 14 and then exit through the hollow rod 3, thus ensuring that the coffee powder and water are fully mixed, completing the coffee brewing process.

[0035] The following is an introduction to powder container 1:

[0036] The coffee powder container 1 is a frustum-shaped container, wider at the top and narrower at the bottom, making it easy to fit into external containers of different diameters. The container 1 includes, from top to bottom, an upper cover 101, a container body 102, and a bottom cover 103. The upper cover 101 is detachably connected to the upper end of the container body 102. After opening the upper cover 101, coffee powder can be added to the container body 102, or the interior of the container body 102 can be cleaned. The bottom cover 103 is fixed to the lower end of the container body 102, sealing the lower end to prevent coffee powder leakage. In this embodiment, the filter holes 2 are evenly distributed on the side wall of the container body 102, thereby filtering the coffee powder and preventing larger coffee particles from entering the external container. The hollow rod 3 is detachably connected to the top of the upper cover 101. After removing the hollow rod 3, it is convenient to clean each component individually.

[0037] In this embodiment, the inner wall of the upper cover 101 is provided with a first internal thread 5, and the outer wall of the cylinder 102 is provided with a first external thread 6 that screws into the first internal thread 5; the upper cover 101 is detachably connected to the cylinder 102 through the engagement of the first internal thread 5 and the first external thread 6. When it is necessary to open the upper cover 101, simply twist the upper cover 101 by hand to open it, add coffee powder into the cylinder 102, or clean the upper cover 101 and the inside of the cylinder 102 separately. The structure is simple and the operation is convenient.

[0038] In this embodiment, a connecting sleeve 7 is fixed to the top of the upper cover 101 for the hollow rod 3 to pass through. A second internal thread 8 is provided on the inner wall of the connecting sleeve 7, and a second external thread 9, which screws into the second internal thread 8, is provided on the lower outer wall of the hollow rod 3. The hollow rod 3 is detachably connected to the upper cover 101 through the engagement of the connecting sleeve 7, the second internal thread 8, and the second external thread 9. When it is necessary to remove the hollow rod 3, it can be removed simply by twisting the hollow rod 3 by hand.

[0039] It is worth mentioning that a connector 10 is fixed to the bottom of the airbag 4, and a third external thread 11 is provided on the outer wall of the connector 10. A third internal thread 12 is provided on the upper inner wall of the hollow rod 3, which is screwed into the third external thread 11. The airbag 4 is detachably connected to the hollow rod 3 through the engagement of the connector 10, the third external thread 11, and the third internal thread 12. During normal use, coffee can easily get into the hollow rod 3. To facilitate cleaning the inside of the hollow rod 3, the connector 10 is turned by hand to separate the airbag 4 from the hollow rod 3; then the hollow rod 3 is turned to separate it from the connecting sleeve 7. At this point, the hollow rod 3 is independent, making it easy to clean the inside of the hollow rod 3.

[0040] Preferably, the connector 10 has a vertically penetrating through-hole 13; the through-hole 13 includes a large-diameter portion 131, a variable-diameter portion 132, and a small-diameter portion 133 arranged sequentially from top to bottom. With this structure, when the air bladder 4 is squeezed, the gas in the air bladder 4 enters the hollow rod 3 sequentially through the large-diameter portion 131, the variable-diameter portion 132, and the small-diameter portion 133, which increases the gas flow rate, thereby improving the liquid turbulence effect in the powder canister 1 and making it easier for coffee powder and liquid to mix.

[0041] The following is a description of the one-way air intake mechanism 14:

[0042] The one-way air intake mechanism 14 includes a top cover 141 fixed to the top of the airbag 4. The top cover 141 is made of metal and is not easily damaged. An air intake channel 142 is provided inside the top cover 141. The air intake channel 142 is T-shaped to allow the inner cavity of the airbag 4 to communicate with the outside. A one-way valve 143 is installed in the air intake channel 142, allowing outside air to enter the airbag 4 normally, while the air inside the airbag 4 cannot be discharged through the one-way valve 143, thus ensuring that the air in the airbag 4 can only be discharged through the hollow rod 3.

[0043] With the above structure, the user can squeeze the airbag 4 by holding it or pressing the top cover 141 to expel air from the airbag 4 through the hollow rod 3, thus brewing coffee in the outer container. When the user releases the airbag 4 or the top cover 141, outside air can sequentially enter the airbag 4 through both sides of the air intake channel 142 and the one-way valve 143, preventing coffee from entering the airbag 4 through the hollow rod 3 and causing contamination inside the airbag 4.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coffee brewer, characterized in that, include: The powder cylinder (1) has several filter holes (2) evenly distributed on its side wall; Hollow rod (3), the hollow rod (3) is detachably connected to the top of the powder cylinder (1), and the lower end of the hollow rod (3) extends into the powder cylinder (1); Airbag (4), the airbag (4) is detachably connected to the upper end of the hollow rod (3), and the inner cavity of the airbag (4) is connected to the inner cavity of the hollow rod (3); A one-way air intake mechanism (14) is provided on the top of the airbag (4) so ​​that external gas can enter the inner cavity of the airbag (4) in one direction.

2. The coffee brewer according to claim 1, characterized in that: The powder cylinder (1) is a frustum-shaped cylinder that is wider at the top and narrower at the bottom.

3. A coffee brewer according to claim 1, characterized in that: The powder cylinder (1) includes an upper cover (101), a cylinder body (102), and a bottom cover (103) arranged sequentially from top to bottom. The upper cover (101) is detachably connected to the upper end of the cylinder body (102), and the bottom cover (103) is fixed to the lower end of the cylinder body (102). Each filter hole (2) is evenly distributed on the side wall of the cylinder (102), and the hollow rod (3) is detachably connected to the top of the cover (101).

4. A coffee brewer according to claim 3, characterized in that: The inner wall of the top cover (101) is provided with a first internal thread (5), and the outer wall of the cylinder (102) is provided with a first external thread (6) that is helically engaged with the first internal thread (5); the top cover (101) is detachably connected to the cylinder (102) through the engagement of the first internal thread (5) and the first external thread (6).

5. A coffee brewer according to claim 3, characterized in that: The top of the cover (101) is fixed with a connecting sleeve (7), and the inner wall of the connecting sleeve (7) is provided with a second internal thread (8). The lower outer wall of the hollow rod (3) is provided with a second external thread (9) that is helically engaged with the second internal thread (8). The hollow rod (3) is detachably connected to the cover (101) through the engagement of the connecting sleeve (7), the second internal thread (8), and the second external thread (9).

6. A coffee brewer according to claim 1, characterized in that: The bottom of the airbag (4) is fixed with a connector (10), and the outer wall of the connector (10) is provided with a third external thread (11). The inner wall of the upper end of the hollow rod (3) is provided with a third internal thread (12) that is helically engaged with the third external thread (11). The airbag (4) is detachably connected to the hollow rod (3) through the engagement of the connector (10), the third external thread (11) and the third internal thread (12).

7. A coffee brewer according to claim 6, characterized in that: The connector (10) has a through hole (13) running vertically through it; the through hole (13) includes a large diameter part (131), a variable diameter part (132) and a small diameter part (133) arranged sequentially from top to bottom.

8. A coffee brewer according to claim 1, characterized in that: The one-way air intake mechanism (14) includes a top cover (141) fixed to the top of the airbag (4), and an air intake channel (142) is provided in the top cover (141). The air intake channel (142) is T-shaped so that the inner cavity of the airbag (4) communicates with the outside. A one-way valve (143) is installed in the air intake channel (142).

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