Water injection type manual coffee machine and coffee maker

Abstract

The disclosure provides a water injection type manual coffee machine and a coffee machine, the water injection type manual coffee machine comprising a cover, a water storage tank, a filter assembly, a pressing rod and a water injection assembly; the water storage tank is provided with a containing cavity, the cover is provided with a through hole and a connecting cavity, the through hole, the connecting cavity and the containing cavity are sequentially communicated from top to bottom; a limiting groove is formed in the inner wall of the containing cavity, the limiting groove is communicated with the inner cavity of the filter assembly, the first end of the water injection assembly is connected to the connecting cavity, and the second end of the water injection assembly is arranged in the limiting groove; the water injection assembly is provided with a compression cavity, the compression cavity is communicated with the inner cavity of the filter assembly, and the pressing end of the pressing rod is arranged in the compression cavity through the through hole; the second end of the water injection assembly is provided with a water inlet, and the limiting groove is communicated with the compression cavity through the water inlet; by controlling the force of the pressing rod, the water flow speed of the liquid flowing from the compression cavity to the filter assembly is controlled, and the influence of the water flow being too large or too small on the extraction effect of coffee is avoided.

Description

Technical Field

[0001] This disclosure relates to the technical field of coffee machines, and in particular to a water-filling manual coffee mechanism and coffee machine. Background Technology

[0002] Currently, with the continuous improvement of living standards, people's interest in coffee culture is also constantly increasing. In response, many manufacturers and retailers have developed manual coffee machines specifically for brewing coffee.

[0003] However, in most existing manual coffee machines, brewing involves manually adding water to the coffee grounds in the cup holder. This manual addition of water causes the water to flow into the filter and extract the coffee grounds. However, controlling the water flow rate into the filter during manual water addition makes it difficult to control the flow rate, which can easily lead to excessive water flow, affecting the extraction process and consequently the flavor of the coffee. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and to provide a manual coffee maker and a water-filling mechanism that controls the water flow by hand pressure.

[0005] The purpose of this disclosure is achieved through the following technical solution: A water-filling manual coffee maker includes a top cover, a water tank, a filter assembly, and a water filling assembly; one end of the top cover is connected to one end of the water tank, and the filter assembly is connected to the other end of the water tank; the water tank forms a receiving cavity, the top cover has a through hole communicating with the receiving cavity, and the inner wall of the receiving cavity has a limiting groove communicating with the inner cavity of the filter assembly; The water injection assembly includes a water injection pipe and a pressure rod. The first end of the water injection pipe is connected to the upper cover, and the second end of the water injection pipe is disposed in the limiting groove. The water injection pipe forms a compression chamber, which is connected to the inner cavity of the filter assembly. One end of the pressure rod is located outside the upper cover, and the other end of the pressure rod is slidably connected to the compression chamber through the through hole. The water injection pipe has a water inlet, and the limiting groove is connected to the compression chamber through the water inlet.

[0006] In one embodiment, the water injection pipe body includes a first water injection pipe and a second water injection pipe. A connecting cavity is provided on the side of the water storage tank near the top cover. The first end of the first water injection pipe is connected to the connecting cavity. The first end of the second water injection pipe is connected to the second end of the first water injection pipe. The second end of the second water injection pipe is embedded in the limiting groove. The water inlet is opened on the outer peripheral wall of the second water injection pipe.

[0007] In one embodiment, the compression chamber includes a first water injection chamber and a second water injection chamber, the first water injection chamber being disposed in the first water injection pipe, the second water injection chamber being disposed in the inner cavity of the second water injection pipe, and the first water injection chamber being connected to the second water injection chamber.

[0008] In one embodiment, the pressure rod includes a stamped part and a rod body, one end of the rod body being snapped into the stamped part, and the stamped part being slidably disposed in the first water injection cavity through the through hole; and / or, The stamping end is disposed on the stamping part.

[0009] In one embodiment, the water-filled manual coffee mechanism further includes a resilient reset member disposed within the first water-filling cavity. The first end of the resilient reset member abuts against the end face of the second water-filling pipe, and the second end abuts against the outer peripheral wall of the stamped part. It can be understood that... In one embodiment, the water-filled manual coffee mechanism further includes a one-way valve installed in the second water-filling chamber. The one-way valve has an inlet chamber and an outlet chamber. The inlet is sequentially connected to the receiving chamber, the inlet, and the first water-filling chamber. The outlet chamber is connected to the first water-filling chamber and the inner cavity of the filter assembly.

[0010] In one embodiment, the one-way valve is threaded to the end of the second water injection pipe.

[0011] In one embodiment, the rod body is telescopically disposed within the through hole.

[0012] In one embodiment, the filter assembly includes a powder bowl and a powder bowl holder. The powder bowl holder is threadedly connected to the end of the water storage tank away from the pressure rod. The powder bowl holder has a drain channel that communicates with the compression chamber, and the powder bowl is disposed in the drain channel. A coffee machine comprising a water-filling manual coffee mechanism according to any of the above embodiments.

[0013] Compared with the prior art, this disclosure has at least the following advantages: One end of the top cover is connected to one end of the water storage tank, while the other end of the water storage tank is connected to the filter assembly. The water storage tank has a receiving cavity for storing water. A limiting groove is formed on the inner wall of the receiving cavity. The first end of the water injection pipe is connected to the top cover, and the second end of the water injection pipe is located in the limiting groove. The limiting groove is connected to the compression cavity of the water injection pipe through an inlet. This ensures that when liquid from the receiving cavity flows into the compression cavity through the inlet, the compression cavity is connected to the inner cavity of the filter assembly. Furthermore, the punching end of the pressure rod passes through a through-hole in the compression cavity. Furthermore, because the water inlet is provided in the water inlet and the limiting groove is connected to the compression chamber through the water inlet, the liquid in the accommodating chamber flows into the water inlet through the limiting groove and finally into the compression chamber. When the pressing end of the pressure rod moves vertically towards the filter assembly, it squeezes the liquid in the compression chamber of the water inlet into the inner cavity of the filter assembly, thereby allowing the coffee powder in the filter assembly to be extracted and filtered. By controlling the force of the pressure rod, the flow rate of the liquid in the compression chamber to the filter assembly can be controlled, avoiding excessive water flow that would affect the coffee extraction effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present disclosure; Figure 2 This is a cross-sectional view of a water-filled manual coffee mechanism according to an embodiment of the present disclosure; Figure 3 This is another cross-sectional view of a water-filled manual coffee mechanism according to an embodiment of the present disclosure; Figure 4 for Figure 3 A magnified view of the area shown at point A in the middle.

[0016] Reference numerals: 10, Water-filling manual coffee mechanism; 100, Top cover; 200, Water tank; 210, Connecting cavity; 220, Through hole; 230, Receiving cavity; 2310, Limiting groove; 300, Filter assembly; 310, Coffee bowl; 320, Coffee bowl holder; 3210, Water drain channel; 400, Water filling assembly; 410, Pressure rod; 4110, Stamping part; 4111, Stamping end; 4120, Rod body; 420, Water filling pipe body; 4210, First water filling pipe; 4211, First water filling chamber; 4220, Second water filling pipe; 4221, Water inlet; 4222, Second water filling chamber; 4230, Compression chamber; 500, Elastic reset element; 600, One-way valve; 610, Water inlet chamber; 620, Water outlet chamber. Detailed Implementation

[0017] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments: As shown in Figure 1 Figure 4As shown, an embodiment of a water-filled manual coffee maker 10 includes a top cover 100, a water tank 200, a filter assembly 300, and a water filling assembly 400; one end of the top cover 100 is connected to one end of the water tank 200, and the filter assembly 300 is connected to the other end of the water tank 200; the water tank 200 forms a receiving cavity 230, the top cover 100 has a through hole 220 communicating with the receiving cavity 230, and the inner wall of the receiving cavity 230 has a limiting groove 2310, which communicates with the inner cavity of the filter assembly 300; the water filling assembly 400 includes a water inlet... The water injection pipe body 420 and the pressure rod 410 are provided. The first end of the water injection pipe body 420 is connected to the upper cover 100, and the second end of the water injection pipe body 420 is disposed in the limiting groove 2310. The water injection pipe body 420 forms a compression chamber, which is connected to the inner cavity of the filter assembly 300. One end of the pressure rod 410 is located outside the upper cover 100, and the other end of the pressure rod 410 is slidably connected to the compression chamber through the through hole 220. The water injection pipe body 420 has a water inlet 4221, and the limiting groove 2310 is connected to the compression chamber through the water inlet 4221.

[0021] In this embodiment, one end of the upper cover 100 is connected to one end of the water storage tank 200, and the other end of the water storage tank 200 is connected to the filter assembly 300. The water storage tank 200 has a receiving cavity 230 for storing water source liquid. A limiting groove 2310 is formed on the inner wall of the receiving cavity 230. The first end of the water injection pipe 420 is connected to the upper cover 100, and the second end of the water injection pipe 420 is located in the limiting groove 2310. The limiting groove 2310 is connected to the compression chamber of the water injection pipe 420 through the water inlet 4221. This ensures that when liquid from the receiving cavity 230 flows into the compression chamber through the water inlet 4221, the compression chamber is connected to the inner cavity of the filter assembly 300, and the pressing end 411 of the pressure rod 410... 1. The liquid is installed in the compression chamber through the through hole 220. Since the water injection pipe 420 has an inlet 4221 and the limiting groove 2310 is connected to the compression chamber through the inlet 4221, the liquid in the accommodating chamber 230 flows into the inlet 4221 through the limiting groove 2310 and finally into the compression chamber. When the pressing end 4111 of the pressure rod 410 moves in the vertical direction of the filter assembly 300, it will squeeze the liquid in the compression chamber of the water injection pipe 420 into the inner cavity of the filter assembly 300, thereby allowing the coffee powder in the filter assembly 300 to be extracted and filtered. By controlling the force of the pressure rod 410, the flow rate of the liquid in the compression chamber to the filter assembly 300 can be controlled, avoiding excessive water flow that would affect the coffee extraction effect.

[0022] like Figures 2 to 3As shown, in one embodiment, the water injection pipe body 420 includes a first water injection pipe 4210 and a second water injection pipe 4220. The water storage tank 200 has a connecting cavity 210 on the side near the upper cover 100. The first end of the first water injection pipe 4210 is connected to the connecting cavity 210, the first end of the second water injection pipe 4220 is connected to the second end of the first water injection pipe 4210, the second end of the second water injection pipe 4220 is embedded in the limiting groove 2310, and the water inlet 4221 is opened on the outer peripheral wall of the second water injection pipe 4220. Understandably, the water injection assembly 400 is composed of a first water injection pipe 4210 and a second water injection pipe 4220. By connecting the first end of the first water injection pipe 4210 to the connecting cavity 210, a stable connection is formed between the upper part of the water injection assembly 400 and the upper cover 100. Simultaneously, the first end of the second water injection pipe 4220 is connected to the second end of the first water injection pipe 4210, forming a continuous water injection channel. The second end of the second water injection pipe 4220 is embedded in the limiting groove 2310, which fixes the position of the second water injection pipe 4220, further improving the overall installation stability of the water injection assembly 400 and preventing displacement of the water injection assembly 400 during the pressing process of the pressure rod 410. The interiors of the first water injection pipe 4210 and the second water injection pipe 4220 together form a compression cavity, allowing the pressing end 4111 of the pressure rod 410 to move smoothly within the compression cavity of the entire water injection assembly 400. When the water source liquid in the accommodating cavity 230 needs to enter the compression cavity, since the inlet 4221 is located on the outer peripheral wall of the second water injection pipe 4220 and the second water injection pipe 4220 is embedded in the limiting groove 2310, the liquid in the limiting groove 2310 can directly flow into the compression cavity through the inlet 4221. This design makes the water inlet path more direct and reduces the resistance to liquid flow.

[0023] Combination Figure 2 and Figure 3Furthermore, the compression chamber is jointly formed by a first water injection chamber 4211 and a second water injection chamber 4222. The first water injection chamber 4211 is disposed in the first water injection pipe 4210, and the second water injection chamber 4222 is disposed in the inner cavity of the second water injection pipe 4220. The first water injection chamber 4211 is connected to the second water injection chamber 4222. It can be understood that the compression chamber is subdivided into a first water injection chamber 4211 and a second water injection chamber 4222, wherein the first water injection chamber 4211 is located inside the first water injection pipe 4210, and the second water injection chamber 4222 is located in the inner cavity of the second water injection pipe 4220, and the first water injection chamber 4211 and the second water injection chamber 4222 are interconnected, forming a complete liquid transmission channel. When the liquid in the receiving cavity 230 enters the second water injection cavity 4222 through the inlet 4221, since the first water injection cavity 4211 and the second water injection cavity 4222 are connected, the liquid can smoothly flow from the second water injection cavity 4222 into the first water injection cavity 4211. At the same time, the punching end 4111 of the pressure rod 410 passes through the through hole 220 and is located in the first water injection cavity 4211. When the pressure rod 410 moves in the vertical direction of the filter assembly 300, it will first generate pressure on the liquid in the first water injection cavity 4211. The pressure is transmitted to the second water injection cavity 4222 through the connected channel, thereby pushing the liquid in the entire compression cavity into the inner cavity of the filter assembly 300.

[0024] Combination Figure 2 and Figure 3 In one embodiment, the pressure rod 410 includes a stamped part 4110 and a rod body 4120. One end of the rod body 4120 is snapped into the stamped part 4110, and the stamped part 4110 is slidably disposed in the first water injection chamber 4211 through the through hole 220. It can be understood that the pressure rod 410 is composed of the stamped part 4110 and the rod body 4120, with one end of the rod body 4120 snapped into the stamped part 4110. This snapping method ensures the stability of the connection between the two and facilitates disassembly and replacement when needed, improving the maintenance convenience of the pressure rod 410. Simultaneously, the stamped part 4110 is slidably disposed in the first water injection chamber 4211 through the through hole 220, allowing the stamped part 4110 to move smoothly within the first water injection chamber 4211 in a direction perpendicular to the filter assembly 300. When the user operates the lever body 4120, force is transmitted to the stamping part 4110 through the locking joint, causing the stamping part 4110 to move within the first water injection chamber 4211. Since the stamping part 4110 is located in the first water injection chamber 4211, its movement directly acts on the liquid within the first water injection chamber 4211, generating pressure by squeezing the liquid, thereby pushing the liquid sequentially through the second water injection chamber 4222 and the inner cavity of the filter assembly 300, thus achieving the extraction of coffee powder.

[0025] Combination Figure 2 and Figure 3In one embodiment, the stamping end 4111 is disposed on the stamping member 4110. It is understood that the stamping end 4111 is disposed on the stamping member 4110, and the stamping end 4111 is close to one end of the filter assembly 300. When the stamping member 4110 moves downward, the stamping end 4111 will squeeze the liquid in the first water injection chamber 4211 into the second water injection chamber 4222.

[0026] Combination Figure 2 and Figure 3 Furthermore, the water-filling manual coffee mechanism 10 also includes an elastic reset member 500. The elastic reset member 500 is disposed within the first water-filling cavity 4211. The first end of the elastic reset member 500 abuts against the end face of the second water-filling pipe 4220, and the second end of the elastic reset member 500 abuts against the outer peripheral wall of the stamping member 4110. It can be understood that the water-filling manual coffee mechanism 10 adds the elastic reset member 500, which is disposed within the first water-filling cavity 4211, with its first end abutting against the end face of the second water-filling pipe 4220 and its second end abutting against the outer peripheral wall of the stamping member 4110. This installation method allows the elastic reset member 500 to be in a compressed, pre-tightened state within the first water-filling cavity 4211, providing a continuous counterforce to the stamping member 4110. When the user presses down on the rod 410 body, causing the stamping part 4110 to move towards the filter assembly 300, the stamping part 4110 compresses the elastic reset part 500, further compressing the elastic reset part 500 and storing elastic potential energy. At this time, the stamping part 4110 applies pressure to the liquid in the first water injection chamber 4211, causing the liquid to flow towards the filter assembly 300 to complete the extraction. When the user releases the rod body 4120, the elastic potential energy stored in the elastic reset part 500 is released, pushing the stamping part 4110 to move away from the filter assembly 300, automatically returning to its initial position.

[0027] See Figure 2 , Figure 3 and Figure 4In another embodiment, the water-filled manual coffee mechanism 10 further includes a one-way valve 600, which is installed in the second water filling chamber 4222. The one-way valve 600 has an inlet chamber 610 and an outlet chamber 620. The inlet 4221 is sequentially connected to the accommodating chamber 230, the inlet 4221 and the first water filling chamber 4211. The outlet chamber 620 is connected to the first water filling chamber 4211 and the inner cavity of the filter assembly 300. Understandably, a one-way valve 600 is installed in the second water injection chamber 4222, and the one-way valve 600 has an inlet chamber 610. The inlet chamber 610 is sequentially connected to the receiving chamber 230, the water inlet 4221, and the first water injection chamber 4211, allowing liquid to enter the first water injection chamber 4211 from the inlet chamber 610. Since the outlet chamber 620 is connected to the first water injection chamber 4211 and the inner cavity of the filter assembly 300, when liquid enters the first water injection chamber 4211, it is squeezed into the inlet chamber 610 by the stamping member 4110, ultimately causing the liquid to flow from the inlet chamber 610 into the inner cavity of the filter assembly 300. Simultaneously, both the inlet chamber 610 and the outlet chamber 620 are unidirectional flow chambers, preventing backflow of liquid.

[0028] See Figure 3 and Figure 4 In one embodiment, the one-way valve 600 is threadedly connected to the end of the second water injection pipe 4220. It can be understood that the threaded connection of the one-way valve 600 to the end of the second water injection pipe 4220 provides a tight and secure connection for installation stability. Under the pressure impact of liquid flow and the operation of the pressure rod 410, it effectively prevents the one-way valve 600 from loosening or shifting, ensuring it remains in the correct working position and thus stably performs its one-way flow guiding function. Simultaneously, the threaded connection simplifies and facilitates the installation and removal of the one-way valve 600. When cleaning, maintenance, or replacement of the one-way valve 600 is required, it can be removed from the end of the second water injection pipe 4220 simply by rotating it. This operation requires no complex tools, greatly reducing maintenance difficulty and improving the ease of use of the equipment.

[0029] like Figure 2 As shown, in one embodiment, the rod body 4120 is telescopically disposed within the through hole 220. It can be understood that the telescopically disposed rod body 4120 within the through hole 220 allows the rod body 4120 to drive the stamping part 4110 to move downwards towards the filter assembly 300. Furthermore, when the water-filling manual coffee mechanism 10 stops filling, the rod body 4120 can be telescopically extended to the end face of the upper cover 100 for locking, thereby locking the rod body 4120 onto the end face of the upper cover 100.

[0030] Combining diagrams and Figure 3 Furthermore, the filter assembly 300 includes a coffee bowl 310 and a coffee bowl holder 320. The coffee bowl holder 320 is threadedly connected to the end of the water tank 200 away from the pressure rod 410. The coffee bowl holder 320 has a drain channel 3210, which connects to the compression chamber. The coffee bowl 310 is disposed within the water outlet chamber 620. It can be understood that the coffee bowl holder 320 is threadedly connected to the water storage pipe, thus fixing the coffee bowl holder 320 to the water tank 200. The coffee bowl 310 is disposed within the drain channel 3210, which connects to the compression chamber. When coffee powder is placed in the coffee bowl 310, the liquid in the compression chamber flows into the drain channel 3210, where it is extracted through the coffee powder in the coffee bowl 310, and finally flows into the coffee cup.

[0031] In another embodiment, a coffee capsule assembly can be provided in the coffee bowl holder 320. When the liquid in the compression chamber flows into the drain channel 3210 of the coffee bowl holder 320, the coffee capsule in the coffee capsule assembly can be punctured, thereby allowing the liquid to extract coffee from the coffee capsule.

[0032] It should be noted that the coffee capsule assembly is existing and conventional technology, and will not be described in detail here.

[0033] This application also includes a coffee machine comprising the water-filling manual coffee mechanism 10 described in any of the above embodiments.

[0034] Compared with the prior art, this disclosure has at least the following advantages: One end of the top cover 100 is connected to one end of the water storage tank 200, and the other end of the water storage tank 200 is connected to the filter assembly 300. The water storage tank 200 has a receiving cavity 230 for storing water. A limiting groove 2310 is formed on the inner wall of the receiving cavity 230. The first end of the water injection pipe 420 is connected to the top cover 100, and the second end of the water injection pipe 420 is located in the limiting groove 2310. The limiting groove 2310 is connected to the compression chamber of the water injection pipe 420 through the water inlet 4221. When the liquid in the receiving cavity 230 flows into the compression chamber through the water inlet 4221, the compression chamber is connected to the inner cavity of the filter assembly 300. At the same time, the punching end 4111 of the pressure rod 410 passes through the through hole 2. The pressure rod 410 is positioned in the compression chamber. Since the water inlet 4221 is provided in the water pipe body 420, and the limiting groove 2310 is connected to the compression chamber through the water inlet 4221, the liquid in the accommodating chamber 230 flows through the limiting groove 2310 into the water inlet 4221, and finally into the compression chamber. When the pressing end 4111 of the pressure rod 410 moves vertically towards the filter assembly 300, it squeezes the liquid in the compression chamber of the water inlet 420 into the inner cavity of the filter assembly 300, thereby allowing the coffee powder in the filter assembly 300 to be extracted and filtered. By controlling the force of the pressure rod 410, the flow rate of the liquid from the compression chamber to the filter assembly 300 is controlled, preventing excessive or insufficient water flow from affecting the coffee extraction effect.

[0035] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A water-filling manual coffee maker, comprising a top cover, a water tank, a filter assembly, and a water-filling assembly; one end of the top cover is connected to one end of the water tank, and the filter assembly is connected to the other end of the water tank; the water tank forms a receiving cavity, the top cover has a through hole communicating with the receiving cavity, and the inner wall of the receiving cavity has a limiting groove communicating with the inner cavity of the filter assembly; characterized in that The water injection assembly includes a water injection pipe and a pressure rod. The first end of the water injection pipe is connected to the upper cover, and the second end of the water injection pipe is disposed in the limiting groove. The water injection pipe forms a compression chamber, which is connected to the inner cavity of the filter assembly. One end of the pressure rod is located outside the upper cover, and the other end of the pressure rod is slidably connected to the compression chamber through the through hole. The water injection pipe has a water inlet, and the limiting groove is connected to the compression chamber through the water inlet.

2. The manual coffee machine according to claim 1, characterized in that, The water injection pipe body includes a first water injection pipe and a second water injection pipe. A connecting cavity is provided on the side of the water storage tank near the top cover. The first end of the first water injection pipe is connected to the connecting cavity. The first end of the second water injection pipe is connected to the second end of the first water injection pipe. The second end of the second water injection pipe is embedded in the limiting groove. The water inlet is opened on the outer peripheral wall of the second water injection pipe.

3. The manual coffee brewing device according to claim 2, wherein The compression chamber is formed by a first water injection chamber and a second water injection chamber. The first water injection chamber is located in the first water injection pipe, and the second water injection chamber is located in the inner cavity of the second water injection pipe. The first water injection chamber is connected to the second water injection chamber.

4. The manual coffee brewing device according to claim 3, characterized in that, The pressure rod includes a stamped part and a rod body. One end of the rod body is snapped into the stamped part, and the stamped part is slidably disposed in the first water injection chamber through the through hole.

5. The manual coffee brewing device according to claim 4, characterized in that, The water-filling manual coffee mechanism also includes an elastic reset member disposed in the first water filling chamber. The first end of the elastic reset member abuts against the end face of the second water filling pipe, and the second end of the elastic reset member abuts against the outer peripheral wall of the stamping part.

6. The pumped manual coffee machine according to claim 3, characterized in that, The water-injection manual coffee mechanism also includes a one-way valve, which is installed in the second water injection chamber. The one-way valve has an inlet chamber and an outlet chamber. The inlet is sequentially connected to the receiving chamber, the inlet, and the first water injection chamber. The outlet chamber is connected to the first water injection chamber and the inner cavity of the filter assembly.

7. The manual coffee brewing device according to claim 6, characterized in that, The one-way valve is threadedly connected to the end of the second water injection pipe.

8. The pumped manual coffee machine according to claim 4, characterized in that, The rod body is telescopically positioned within the through hole.

9. The pumped manual coffee machine according to claim 1, characterized in that, The filter assembly includes a powder bowl and a powder bowl holder. The powder bowl holder is threaded to the end of the water storage tank away from the pressure rod. The powder bowl holder has a drain channel that connects to the compression chamber. The powder bowl is disposed in the drain channel.

10. A coffee maker characterized in that, Includes the water-filling manual coffee maker as described in any one of claims 1 to 9.

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