A coffee maker brewing device

Abstract

The application provides a coffee machine brewing device, which comprises a machine body, a heating pot, a water pump, a water tank, a flow meter, a water spraying assembly and a control circuit board, the water tank, the flow meter, the water pump, the heating pot and the water spraying assembly are sequentially connected in communication through water pipes, the control circuit board is electrically connected with the heating pot, the water pump, the water tank and the flow meter, the water spraying assembly comprises a support, a motor, a shower head and a rotating body with a water storage cavity, the water storage cavity is connected with the heating pot through a water pipe, the motor is electrically connected with the control circuit board and can drive the shower head to rotate forward or reversely, the bottom of the shower head is provided with a first water outlet channel, a second water outlet channel and a third water outlet channel, and the bottom of the rotating body is provided with a water outlet pipe. The device has simple structure, can uniformly spray water on the surface of coffee in a segmented mode, has high running stability, can fully extract coffee and improve the drinking experience of the whole coffee.

Description

Technical Field

[0001] This invention relates to the technical field of coffee machines, specifically a coffee brewing device. Background Technology

[0002] Currently, coffee machines on the market, such as those with drip coffee functions, all use traditional heating elements to heat water pipes, causing the internal water to convert into steam and expand, pushing the hot water upwards. After the water flows out, a negative pressure is created inside, and cold water is added to the water tank. This heating and pushing cycle continues, as described above, to produce water. The shower head at the top of the water outlet has 5-8 water outlets, which can evenly sprinkle water on the surface of the coffee when the flow is continuous.

[0003] Defects in existing technology and their causes: To solve the problem of continuous water flow, many people add water pumps. However, as the requirements for coffee drinking become more sophisticated, people pay attention to the location of the water spray on the coffee surface, the segmented spraying, the spraying speed, and the spraying temperature. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a coffee brewing device with a simple structure. It can spray water evenly and segmentally to fully cover the coffee surface, has high operational stability, and allows for full extraction of coffee, thereby enhancing the overall coffee drinking experience.

[0005] The objective of this invention is achieved as follows: A coffee brewing device includes a body and a heating pot, a water pump, a water tank, a flow meter, a spraying assembly, and a control circuit board installed within the body. The water tank, flow meter, water pump, heating pot, and spraying assembly are sequentially connected via water pipes. The control circuit board is electrically connected to the heating pot, water pump, water tank, and flow meter. The spraying assembly includes a bracket, a motor, a spray nozzle, and a rotating body with a water storage chamber. The water storage chamber is connected to the heating pot via a water pipe. The motor is electrically connected to the control circuit board and can drive the spray nozzle to rotate forward or backward. The bottom of the spray nozzle is provided with a first water outlet channel, a second water outlet channel, and a third water outlet channel that can spray coffee powder onto different areas. The bottom of the rotating body is provided with a water outlet pipe that can drive the spray nozzle to rotate and is connected to the first, second, or third water outlet channel.

[0006] Based on the above optimization, the bottom of the shower head is provided with an upwardly extending first thin wall. The first thin wall divides the bottom of the shower head into a first water outlet channel, a second water outlet channel, and a third water outlet channel. The water outlet pipe contacts the first thin wall as the rotating body moves, thereby driving the shower head to rotate.

[0007] Based on the above optimization, the bottom of the shower head is provided with an upwardly extending second thin wall, which divides the bottom of the shower head into a groove. The bottom of the rotating body is provided with a protruding post that extends downward into the groove and can slide in the groove as the shower head moves.

[0008] Based on the above optimization, the output shaft of the motor is equipped with a driving gear, the rotating body is equipped with a driven gear, and an intermediate gear meshes between the driving gear and the driven gear.

[0009] Based on the above optimization, the bracket is provided with an upper cover, and the upper cover is provided with a water inlet connector for connecting to the corresponding water pipe, and the water inlet connector is connected to the water storage chamber.

[0010] Based on the above optimization, the upper cover is equipped with a micro switch for controlling the on / off state of the motor, and the micro switch is electrically connected to the control circuit board.

[0011] Based on the above optimization, the rotating body is provided with a first protrusion, a second protrusion, and a third protrusion that can squeeze the micro switch to open and close the micro switch as it rotates.

[0012] Based on the above optimization, the first protrusion, the second protrusion, and the third protrusion have a spacing between each other in the circumferential direction.

[0013] Based on the above optimization, the upper cover has a notch for the first protrusion, the second protrusion, and the third protrusion to pass through and contact the micro switch.

[0014] Based on the above optimization, sealing rings to prevent leakage are installed between the rotating body and the top cover and the shower head, the rotating body is provided with a vent pipe, and the top cover is provided with a number of vents above the rotating body, the vents being connected to the vent pipe.

[0015] The advantages of this invention are: The sprinkler assembly with this structure, consisting of a bracket, motor, sprinkler head, rotating body, control circuit board, heating element, water pump, water tank, and flow meter, works in conjunction with these components. This allows control of the motor's movement, which in turn drives the rotating body, causing the sprinkler head to rotate forward or backward. This connects the water outlet pipe to the first, second, or third water outlet channel. The structure is simple, reducing the overall size of the product. It allows for control of water spraying on any area of ​​the coffee surface, while simultaneously controlling the water flow rate, temperature, and rotation speed, thereby altering the brewing flavor of the coffee. It offers high operational stability, ensuring thorough extraction of the coffee and enhancing the overall drinking experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0017] Figure 2This is a schematic diagram of a preferred embodiment of the present invention (with part of the body removed).

[0018] Figure 3 This is a schematic diagram of a preferred embodiment of the present invention (with parts of the body and support removed).

[0019] Figure 4 This is a structural schematic diagram of a preferred embodiment of the present invention from another angle (with parts of the body and support removed).

[0020] Figure 5 This is a schematic diagram of the structure of the sprinkler assembly according to a preferred embodiment of the present invention (without the bracket).

[0021] Figure 6 This is a structural schematic diagram of the sprinkler assembly of the preferred embodiment of the present invention from another angle (without the bracket).

[0022] Figure 7 This is an exploded view of the sprinkler assembly of a preferred embodiment of the present invention (with the bracket removed).

[0023] Figure 8 This is a front view of a shower head according to a preferred embodiment of the present invention.

[0024] Figure 9 This is a rear view of a shower head according to a preferred embodiment of the present invention.

[0025] Figure 10 This is a front view of the rotating body according to a preferred embodiment of the present invention.

[0026] Figure 11 This is a rear view of the rotating body according to a preferred embodiment of the present invention. Detailed Implementation

[0027] The present invention will now be further described with reference to the accompanying drawings.

[0028] According to the appendix Figures 1 to 11As shown, the coffee brewing device of the present invention includes a body 1 and a heating pot 2, a water pump 3, a water tank 4, a flow meter 5, a water spraying assembly, and a control circuit board 6 installed inside the body 1. The water tank 4, flow meter 5, water pump 3, heating pot 2, and water spraying assembly are connected sequentially via water pipes. The control circuit board 6 is electrically connected to the heating pot 2, water pump 3, water tank 4, and flow meter 5 respectively. The water spraying assembly includes a bracket 7, a motor 8, a shower head 9, and a rotating body 10 with a water storage chamber 101. The water storage chamber 101 is connected to the heating pot 2 via a water pipe. The motor 8 is electrically connected to the control circuit board 6 and can drive the shower head 9 to rotate forward or backward. The bottom of the shower head 9 is provided with a first water outlet channel 91, a second water outlet channel 92, and a third water outlet channel 93, which can spray coffee powder onto different areas respectively. The bottom of the rotating body 10 is provided with a water outlet pipe 11, which can drive the shower head 9 to rotate and is connected to the first water outlet channel 91, the second water outlet channel 92, or the third water outlet channel 93.

[0029] Reference Figures 1 to 11 As shown in the figure, further detailed, the bottom of the shower head 9 is provided with a first thin wall 12 extending upward. The first thin wall 12 divides the bottom of the shower head 9 into a first water outlet channel 91, a second water outlet channel 92, and a third water outlet channel 93. The water outlet pipe 11 contacts the first thin wall 12 as the rotating body 10 moves, thereby driving the shower head 9 to rotate.

[0030] Furthermore, the bottom of the shower head 9 is provided with an upwardly extending second thin wall 13. The second thin wall 13 divides the bottom of the shower head 9 into a groove 94, and the bottom of the rotating body 10 is provided with a protruding post 12 that extends downward into the groove 94 and can slide in the groove 94 as the shower head 9 moves.

[0031] This structure can set the water outlet pipe 11 at the center of the relative rotating body 10, so that the water outlet pipe 11 of the shower head 9 is in the starting position.

[0032] That is, during operation, the water outlet pipe 11 and the first thin wall 12, the protruding column 12 and the sliding groove 94 are structurally matched so that the shower head 9 can rotate with the rotating body 10 in the initial position, so that the first water outlet channel 91, the second water outlet channel and the third water outlet channel 93 can form a water spraying area A, a water spraying area B and a water spraying area C during rotation.

[0033] Reference Figures 1 to 11 As shown in the figure, further detailed, the output shaft of the motor 8 is equipped with a drive gear 13, the rotating body 10 is equipped with a driven gear 14, and an intermediate gear 15 is meshed between the drive gear 13 and the driven gear 14.

[0034] Reference Figures 1 to 11As shown in the figure, in further detail, the bracket 7 is provided with an upper cover 16, the upper cover 16 is provided with a water inlet connector 17 for connecting to the corresponding water pipe, and the water inlet connector 17 is connected to the water storage chamber 101.

[0035] Furthermore, the upper cover 16 is equipped with a micro switch 18 for controlling the on / off state of the motor 8, and the micro switch 18 is electrically connected to the control circuit board 6.

[0036] Reference Figures 1 to 11 As shown, in further detail, the rotating body 10 is provided with a first protrusion 19, a second protrusion 20, and a third protrusion 21 that can squeeze the micro switch 18 to open and close the micro switch 18 as it rotates.

[0037] In the optimized design, the upper cover 16 has a notch for the first protrusion 19, the second protrusion 20, and the third protrusion 21 to pass through and contact the micro switch 18.

[0038] Furthermore, the first protrusion 19, the second protrusion 20, and the third protrusion 21 are spaced apart in the circumferential direction. This effectively controls the rotation time of the motor 8, thereby controlling the continuous water output time.

[0039] During this process, sealing rings 22 are installed between the rotating body 10, the upper cover 16, and the shower head 9 to prevent leakage. In addition, the rotating body 10 is provided with a vent pipe 23, and the upper cover 16 is provided with a plurality of vents 24 located above the rotating body 10, and the vents 24 are connected to the vent pipe 23.

[0040] With the structure of the vent pipe 23 and the vent 24, water can flow smoothly and continuously. At the same time, the sealing ring 22 prevents water leakage and ensures the quality of the product.

[0041] That is, refer to Figures 1 to 11 As shown, the working principle of the specific zoned watering system is as follows: 1. Sprinkling Area A: The control circuit board 6 operates, controlling the heating element 2, water pump 3, and flow meter 5. The motor 8 stops working. At this time, the structure can position the water outlet pipe 11 at the center relative to the rotating body 10, so that the water outlet pipe 11 is in its initial position and connected to the first water outlet channel 91. Water flows through the water pump 3 from the water tank 4, heating element 2, top cover 16, water storage chamber 101, and water outlet pipe 11 into the first water outlet channel 91, thus ensuring continuous water flow to Sprinkling Area A.

[0042] 2. Sprinkling Area C: When motor 8 rotates forward, it drives the drive gear 13, intermediate gear 15, and driven gear 14 to rotate, and the water outlet pipe 11 rotates counterclockwise relative to the bracket 7. When the water outlet pipe 11 contacts the first thin wall 12 and drives the shower head 9 to rotate counterclockwise, the water outlet pipe 11 is connected to the third water outlet channel 93. Water flows through the water pump 3 from the water tank 4, heating pot 2, top cover 16, water storage chamber 101, and water outlet pipe 11 into the third water outlet channel 93, thus achieving continuous water flow in the C sprinkling area. When the flow rate reaches the set value of the flow meter 5, the water pump 3 stops working, and the water outlet pipe 11 stops discharging water. During this period, the micro switch 18 touches the first protrusion 19 and then the second protrusion 20 after 3 seconds. The control circuit board 6 controls the motor 8 to reverse. When the micro switch 18 touches the first protrusion 19 again, the motor 8 stops rotating, and the water outlet pipe 11 returns to the starting position.

[0043] 3. Sprinkling Area B: When motor 8 reverses, it drives the drive gear 13, intermediate gear 15, and driven gear 14 to rotate, and the water outlet pipe 11 rotates clockwise relative to the bracket 7. When the water outlet pipe 11 contacts the first thin wall 12 and drives the shower head 9 to rotate clockwise, the water outlet pipe 11 is connected to the third water outlet channel 93. Water flows through the water pump 3 from the water tank 4, heating pot 2, top cover 16, water storage chamber 101, and water outlet pipe 11 into the second water outlet channel 92, thus ensuring continuous water flow in the B sprinkling area. When the flow rate reaches the set value of the flow meter 5, the water pump 3 stops working, and the water outlet pipe 11 stops discharging water. During this period, the micro switch 18 touches the third protrusion 21 for 3 seconds and then touches the second protrusion 20. The control circuit board 6 controls the motor 8 to rotate forward. When the micro switch 18 touches the third protrusion 21 again, the motor 8 stops rotating, and the water outlet pipe 11 returns to the starting position.

[0044] It is worth noting that if this structure is to achieve multi-area combined watering with different program control, it needs to work in conjunction with the above 1-3 points; such as spiral watering; watering with different durations for different areas; watering with different flow rates for different areas.

[0045] In this way, the coffee machine brewing device with this structure can control the spray head 9 to spray water on any area of ​​the coffee surface, effectively changing the brewing flavor of the coffee. It has high operational stability, so it will not cause local over-extraction due to single extraction of a certain part, nor under-extraction due to unstable water flow, thus increasing the practicality of the product. It can arbitrarily select the extraction method suitable for various coffee powders, and improve the overall coffee drinking experience.

[0046] The above specific embodiments are merely specific implementations of the present invention with better effects. Any structure that is the same as or equivalent to the coffee brewing device of the present invention is within the protection scope of the present invention.

Claims

1. A coffee brewing device, characterized in that: The system includes a main body (1) and a heating pot (2), a water pump (3), a water tank (4), a flow meter (5), a water spraying assembly, and a control circuit board (6) installed inside the main body (1). The water tank (4), the flow meter (5), the water pump (3), the heating pot (2), and the water spraying assembly are connected sequentially by water pipes. The control circuit board (6) is electrically connected to the heating pot (2), the water pump (3), the water tank (4), and the flow meter (5) respectively. The water spraying assembly includes a bracket (7), a motor (8), a shower head (9), and a rotating body (10) with a water storage chamber (101). The water chamber (101) is connected to the heating pot (2) through a water pipe. The motor (8) is electrically connected to the control circuit board (6) and can drive the shower head (9) to rotate forward or backward. The bottom of the shower head (9) is provided with a first water outlet channel (91), a second water outlet channel (92), and a third water outlet channel (93) that can spray coffee powder on different areas respectively. The bottom of the rotating body (10) is provided with a water outlet pipe (11) that can drive the shower head (9) to rotate and is connected to the first water outlet channel (91), the second water outlet channel (92), or the third water outlet channel (93).

2. The coffee brewing device according to claim 1, characterized in that: The bottom of the shower head (9) is provided with an upwardly extending first thin wall (12). The first thin wall (12) divides the bottom of the shower head (9) into a first water outlet channel (91), a second water outlet channel (92), and a third water outlet channel (93). The water outlet pipe (11) contacts the first thin wall (12) as the rotating body (10) moves, thereby driving the shower head (9) to rotate.

3. The coffee brewing device according to claim 1, characterized in that: The bottom of the shower head (9) is provided with an upwardly extending second thin wall (13), the second thin wall (13) divides the bottom of the shower head (9) into a groove (94), and the bottom of the rotating body (10) is provided with a protruding post (12) that extends downward into the groove (94) and can slide in the groove (94) as the shower head (9) moves.

4. The coffee brewing device according to claim 1, characterized in that: The output shaft of the motor (8) is equipped with a drive gear (13), the rotating body (10) is equipped with a driven gear (14), and an intermediate gear (15) meshes between the drive gear (13) and the driven gear (14).

5. The coffee brewing device according to claim 1, characterized in that: The bracket (7) is provided with a top cover (16), the top cover (16) is provided with a water inlet connector (17) for connecting to the corresponding water pipe, and the water inlet connector (17) is connected to the water storage chamber (101).

6. The coffee brewing device according to claim 5, characterized in that: The upper cover (16) is provided with a micro switch (18) for controlling the on / off state of the motor (8), and the micro switch (18) is electrically connected to the control circuit board (6).

7. The coffee brewing device according to claim 6, characterized in that: The rotating body (10) is provided with a first protrusion (19), a second protrusion (20), and a third protrusion (21) that can squeeze the micro switch (18) to open and close the micro switch (18) as it rotates.

8. The coffee brewing device according to claim 7, characterized in that: The first protrusion (19), the second protrusion (20), and the third protrusion (21) are spaced apart from each other in the circumferential direction.

9. The coffee brewing device according to claim 8, characterized in that: The top cover (16) has notches for the first protrusion (19), the second protrusion (20), and the third protrusion (21) to pass through and contact the micro switch (18).

10. The coffee brewing device according to claim 5, characterized in that: The rotating body (10) is equipped with a sealing ring (22) to prevent leakage between the top cover (16) and the shower head (9). The rotating body (10) is provided with a vent pipe (23). The top cover (16) is provided with a number of vents (24) located above the rotating body (10). The vents (24) are connected to the vent pipe (23).

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