A flow rate adjustment control device for a drip coffee maker

Abstract

The present invention discloses a flow rate adjustment control device for a drip coffee maker, which includes a funnel (1), a brewing chamber (2), an adjustment dial (3), and a bottom cover (4). The funnel (1) is arranged inside the brewing chamber (2). A first outlet (10) is provided at the bottom of the funnel (1). A central hole (20) and a first connecting column (24) are provided at the bottom of the brewing chamber (2). A second outlet (30) is provided on the adjustment dial (3). An arc-shaped strip-shaped limiting hole (34) is provided on the bottom surface of the adjustment dial (3). The bottom cover (4) is provided with a brewed coffee outlet (7) and a second connecting column (44). The second connecting column (44) passes through the limiting hole (34) from bottom to top and is connected to the first connecting column (24), clamping the adjustment dial (3) between the bottom of the brewing chamber (2) and the bottom cover (4) to axially limit the adjustment dial (3). The adjustment dial (3) rotates around the center, and the second connecting column (44) and the first connecting column (24) are limited by the limiting hole (34) to circumferentially limit the rotation angle of the adjustment dial (3). When the adjustment dial (3) rotates to the first extreme limiting position, the flow rate is the fastest, and when it rotates to the second extreme limiting position, the flow rate is the slowest.

Description

Technical Field

[0001] The present invention relates to a coffee brewing appliance, and more particularly to a flow rate adjustment control device for a drip coffee maker. Background Art

[0002] Coffee is one of the three major beverages in the world. In the prior art, the main usage scenarios of coffee brewing appliances are on the desks of homes or offices. It is connected to the mains electricity through a cable and uses water and coffee powder, powder packets, coffee capsules, etc. to brew coffee. The drip coffee maker is a common coffee maker. For existing drip coffee makers, when the brewed coffee flows into the pot, the flow rate of the liquid outflow is fixed and cannot be adjusted. Therefore, it is impossible to adjust the concentration of the brewed coffee according to taste requirements, and it is difficult to meet the needs of different tastes.

[0003] In addition, the brewing chamber of the existing drip coffee maker does not have an overflow device. Once an excessive amount of water is added, it will directly overflow from the brewing chamber, causing pollution to the coffee maker and being difficult to clean. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a flow rate adjustment control device for a drip coffee maker with adjustable liquid outflow rate, convenient operation, and easy adjustment of coffee concentration.

[0005] The technical solution adopted by the present invention is as follows: The present invention includes a funnel, a brewing chamber, an adjusting dial, and a bottom cover. The funnel is disposed inside the brewing chamber, and the top edge of the funnel is lapped and fixed on the top edge of the brewing chamber. The bottom of the funnel is provided with at least one first outlet. The bottom of the brewing chamber is provided with a central hole and at least two first connecting columns. The adjusting dial is provided with at least one second outlet, and the bottom surface of the adjusting dial is provided with at least two arc-shaped strip-shaped limiting holes centered on the center. The center of the bottom cover is provided with a brewed coffee outlet, and at least two second connecting columns are provided on the periphery. The second connecting columns pass through the limiting holes from bottom to top and are connected and fixed to the first connecting columns, while clamping the adjusting dial between the bottom of the brewing chamber and the bottom cover, and axially limiting the adjusting dial. The adjusting dial can rotate around the center, and the connection of the second connecting columns and the first connecting columns is limited through the limiting holes to circumferentially limit the rotation angle of the adjusting dial. When the adjusting dial rotates to the first extreme limiting position, the first outlet and the second outlet are completely communicated, and a brewed coffee flow channel is formed in which the first outlet, the second outlet, the central hole, and the brewed coffee outlet are sequentially communicated. At this time, the flow rate is the fastest. When the adjusting dial rotates to the second extreme limiting position, the misalignment between the first outlet and the second outlet is the largest, and the space of the brewed coffee flow channel is the smallest. At this time, the flow rate is the slowest. When the adjusting dial rotates from the first extreme limiting position to the second extreme limiting position, the misalignment between the first outlet and the second outlet gradually increases, the space of the brewed coffee flow channel gradually decreases, and the flow rate gradually slows down, thereby realizing the flow rate adjustment control.

[0006] The bottom of the funnel is provided with a downwardly convex guide post, and at least one sunken blind hole is provided on the edge of the guide post. The first outlet is disposed on the side surface between the sunken blind hole and the guide post, so that the sunken blind hole is communicated with the guide post. The guide post and the sunken blind hole extend into the central hole and are adapted to the shape of the central hole to position and fix the funnel. The middle of the adjusting dial is provided with an upwardly convex blind hole, and the second outlet is disposed on the side surface of the upwardly convex blind hole. The upwardly convex blind hole is inserted into the guide post from bottom to top, and the positions of the first outlet and the second outlet are adapted.

[0007] A sealing connection cap is fixedly covered on the upwardly convex blind hole. The side wall of the sealing connection cap is provided with at least one outwardly convex sealing ring to seal between the bottom of the funnel and the adjusting dial, preventing the brewed coffee from overflowing onto the adjusting dial. The side surface of the sealing connection cap is provided with a through hole, and the size and position of the through hole are the same as those of the second outlet.

[0008] The top of the upwardly convex blind hole is provided with a first positioning portion, and the top of the sealing connection cap is provided with a second positioning portion. The second positioning portion is adapted to the first positioning portion so that the sealing connection cap can be quickly and accurately wrapped and fixed on the upwardly convex blind hole.

[0009] An annular groove is provided on the bottom cover around the brewing coffee outlet. A sealing ring is provided in the annular groove to seal between the bottom cover and the bottom of the adjusting dial, ensuring that the brewing coffee flows out from the brewing coffee outlet and preventing overflow onto the bottom cover.

[0010] The outer side wall of the adjusting dial is provided with an outwardly convex shifting gear.

[0011] The outer side wall of the adjusting dial is provided with a shifting damping pattern.

[0012] A handle is provided on the side of the brewing chamber.

[0013] A first overflow port is provided near the top of the funnel. A first overflow groove extends from the first overflow port downward to the bottom on the back of the funnel. A second overflow groove extends from the top downward to the bottom in the brewing chamber. A second overflow port is provided at the bottom of the second overflow groove. A third overflow port is provided on the adjusting dial. A fourth overflow port is provided on the bottom cover. After the funnel and the brewing chamber are connected and fixed, the first overflow groove and the second overflow groove are hermetically buckled to form an overflow channel. The second overflow port sequentially passes through the third overflow port and the fourth overflow port. When the water level is higher than the first overflow port, the brewing coffee flows into the overflow channel from the first overflow port and flows out from the second overflow port at the bottom.

[0014] The third overflow port is in an arc-shaped strip shape so as to avoid interference between the third overflow port and the overflow channel when the adjusting dial rotates between the first extreme limit position and the second extreme limit position.

[0015] The beneficial effects of the present invention are as follows: Since the present invention includes a funnel, a brewing chamber, an adjusting dial, and a bottom cover, the funnel is disposed inside the brewing chamber, the top edge of the funnel is lap-fixed to the top edge of the brewing chamber, at least one first outlet is provided at the bottom of the funnel, a central hole and at least two first connecting columns are provided at the bottom of the brewing chamber, at least one second outlet is provided on the adjusting dial, and at least two arc-shaped strip-shaped limiting holes centered on the bottom surface of the adjusting dial are provided. A brewing coffee outlet is provided at the center of the bottom cover, and at least two second connecting columns are provided around the bottom cover. The second connecting columns pass upward through the limiting holes and are connected and fixed to the first connecting columns, and at the same time, the adjusting dial is clamped between the bottom of the brewing chamber and the bottom cover, and axial limiting of the adjusting dial is performed. The adjusting dial can rotate around the center, and the connection of the second connecting column and the first connecting column is limited through the limiting hole to perform circumferential limiting on the rotation angle of the adjusting dial. When the adjusting dial rotates to the first extreme limiting position, the first outlet and the second outlet are completely communicated, and a brewing coffee flow channel in which the first outlet, the second outlet, the central hole, and the brewing coffee outlet are sequentially communicated is formed, and the flow rate is the fastest at this time. When the adjusting dial rotates to the second extreme limiting position, the misalignment between the first outlet and the second outlet is the largest, and the space of the brewing coffee flow channel is the smallest, and the flow rate is the slowest at this time. When the adjusting dial rotates from the first extreme limiting position to the second extreme limiting position, the misalignment between the first outlet and the second outlet gradually increases, the space of the brewing coffee flow channel gradually decreases, and the flow rate gradually slows down, so as to perform flow rate adjustment control. The present invention overcomes the defects and deficiencies of the prior art, and creatively designs the adjustment of the coffee liquid outlet speed of the coffee machine during dripping. The circumferential limiting and adjustment are performed through the rotation angle of the adjusting dial, so as to realize the adjustment of the brewing coffee liquid outlet speed in the funnel. The operation is convenient. By adjusting and controlling the liquid outlet speed, the modulation extraction and brewing time of raw materials such as coffee powder in the funnel are adjusted, and then the coffee concentration is adjusted. Therefore, the flow rate adjustment control device of the drip coffee machine of the present invention has an adjustable liquid outlet flow rate, is convenient to operate, and is convenient to adjust the coffee concentration;

[0016] Since the funnel is provided with a first overflow port near the top, a first overflow groove is provided on the back of the funnel extending downward from the first overflow port to the bottom, a second overflow groove is provided in the brewing chamber extending downward from the top to the bottom, a second overflow port is provided at the bottom of the second overflow groove, a third overflow port is provided on the adjusting dial, and a fourth overflow port is provided on the bottom cover. After the funnel is fixedly connected to the brewing chamber, the first overflow groove and the second overflow groove are hermetically buckled to form an overflow channel. The second overflow port sequentially passes through the third overflow port and the fourth overflow port. When the water level is higher than the first overflow port, the brewed coffee flows from the first overflow port into the overflow channel and flows out from the second overflow port at the bottom; the present invention also cooperates with adjusting the liquid outlet speed and is provided with an overflow device, which can avoid the overflow problem caused by a large water inflow, so that the excess water can flow out from the bottom of the brewing chamber to the water receiving tray or the coffee container through overflow, avoiding directly overflowing outward from the top of the brewing chamber, avoiding causing pollution to the coffee machine, and facilitating cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the flow rate adjustment control device of the drip coffee machine according to an embodiment of the present invention;

[0018] Figure 2 is a schematic diagram of the overall structure of the flow rate adjustment control device of the drip coffee machine according to an embodiment of the present invention from another perspective;

[0019] Figure 3 is an exploded structure schematic diagram of the flow rate adjustment control device of the drip coffee machine according to an embodiment of the present invention;

[0020] Figure 4 is a top view structure schematic diagram of the flow rate adjustment control device of the drip coffee machine according to an embodiment of the present invention;

[0021] Figure 5 is Figure 4 the sectional structure schematic diagram shown in A - A;

[0022] Figure 6 is Figure 4 the sectional structure schematic diagram shown in B - B;

[0023] Figure 7 is a schematic diagram of the overall structure of the funnel according to an embodiment of the present invention;

[0024] Figure 8 is a schematic diagram of the overall structure of the brewing chamber according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] As Figures 1 to 8As shown in the figure, the flow rate adjustment control device of the drip coffee maker in this embodiment includes a funnel 1, a brewing chamber 2, an adjustment dial 3, and a bottom cover 4. The funnel 1 is disposed within the brewing chamber 2. The top edge of the funnel 1 is lapped and fixed to the top edge of the brewing chamber 2. The bottom of the funnel 1 is provided with two first outlets 10. The bottom of the brewing chamber 2 is provided with a central hole 20 and three first connecting columns 24. The adjustment dial 3 is provided with two second outlets 30. On the bottom surface of the adjustment dial 3, there are three arc-shaped strip-shaped limiting holes 34 centered on the center. The center of the bottom cover 4 is provided with a brewed coffee outlet 7, and three second connecting columns 44 are provided on the periphery. The second connecting columns 44 pass upward through the limiting holes 34 and are connected and fixed to the first connecting columns 24, while clamping the adjustment dial 3 between the bottom of the brewing chamber 2 and the bottom cover 4, and performing axial limiting on the adjustment dial 3. The adjustment dial 3 can rotate around the center, and the connection between the second connecting columns 44 and the first connecting columns 24 as a whole is limited through the limiting holes 34 to perform circumferential limiting on the rotation angle of the adjustment dial 3. When the adjustment dial 3 rotates to the first extreme limiting position, the first outlet 10 and the second outlet 30 are completely communicated, and a brewed coffee flow channel in which the first outlet 10, the second outlet 30, the central hole 20, and the brewed coffee outlet 7 are communicated in sequence is formed. At this time, the flow rate is the fastest. When the adjustment dial 3 rotates to the second extreme limiting position, the misalignment between the first outlet 10 and the second outlet 30 is the largest, and the space of the brewed coffee flow channel is the smallest. At this time, the flow rate is the slowest. It can be set that the first outlet 10 and the second outlet 30 are completely misaligned. At this time, the space of the brewed coffee flow channel is completely blocked, and the slowest flow rate can be 0, that is, the liquid outlet is in a closed state. When the adjustment dial 3 rotates from the first extreme limiting position to the second extreme limiting position, the misalignment between the first outlet 10 and the second outlet 30 gradually increases, the space of the brewed coffee flow channel gradually decreases, and the flow rate gradually slows down, thereby performing flow rate adjustment control.

[0026] Specifically, a downwardly convex guide post 14 is provided at the bottom of the funnel 1. Two opposite sunken blind holes 12 are provided at the edge of the guide post 14. Two of the first outlets 10 are arranged on the sides between the two sunken blind holes 12 and the guide post 14 and are opposite to each other, so that the sunken blind holes 12 communicate with the guide post 14. The guide post 14 and the sunken blind holes 12 extend into the central hole 20 and are adapted to the shape of the central hole 20 to position and fix the funnel 1. A upwardly convex blind hole 32 is provided in the middle of the adjusting dial 3. The second outlet 30 is arranged on the side of the upwardly convex blind hole 32. The upwardly convex blind hole 32 is inserted into the guide post 14 from bottom to top. The positions of the first outlet 10 and the second outlet 30 are adapted to each other. A sealing connection cap 5 is fixedly covered on the upwardly convex blind hole 32. Four outwardly convex sealing rings 52 are provided on the side wall of the sealing connection cap 5 to perform multi-stage sealing between the bottom of the funnel 1 and the adjusting dial 3, so as to prevent the brewed coffee from overflowing onto the adjusting dial 3 when the adjusting dial 3 rotates. Two opposite through holes 50 are provided on the side of the sealing connection cap 5. The sizes and positions of the through holes 50 are the same as those of the second outlet 30. A first positioning portion 35 is provided at the top of the upwardly convex blind hole 32. A second positioning portion 55 is provided at the top of the sealing connection cap 5. The second positioning portion 55 is adapted to the first positioning portion 35, so that the sealing connection cap 5 can be quickly and accurately covered and fixed on the upwardly convex blind hole 32. In this embodiment, both the second positioning portion 55 and the first positioning portion 35 are upwardly convex cross shapes. An annular groove 46 is provided on the bottom cover 4 around the brewed coffee outlet 7. A sealing ring 6 is provided in the annular groove 46 to seal between the bottom cover 4 and the bottom of the adjusting dial 3, ensuring that the brewed coffee flows out from the brewed coffee outlet 7 and preventing the brewed coffee from overflowing onto the bottom cover 4 when the adjusting dial 3 rotates. An outwardly convex dial 9 is provided on the outer side wall of the adjusting dial 3 to facilitate dialing and adjusting the adjusting dial 3. A dialing damping pattern 39 is provided on the outer side wall of the adjusting dial 3 to facilitate dialing and adjusting the adjusting dial 3. A handle 8 is provided on the side of the brewing chamber 2 to facilitate holding and removing the brewing chamber 2 from the drip coffee maker.

[0027] In addition, this embodiment further includes an overflow device. Specifically, a first overflow port 11 is provided near the top of the funnel 1. A first overflow groove 13 extends downward from the first overflow port 11 to the bottom on the back surface of the funnel 1. A second overflow groove 21 extends downward from the top to the bottom in the brewing chamber 2. A second overflow port 22 is provided at the bottom of the second overflow groove 21. A third overflow port 31 is provided on the adjusting dial 3. A fourth overflow port 41 is provided on the bottom cover 4. After the funnel 1 is fixedly connected to the brewing chamber 2, the first overflow groove 13 and the second overflow groove 21 are hermetically buckled to form an overflow channel. The second overflow port 22 sequentially passes through the third overflow port 31 and the fourth overflow port 41. When the water level is higher than the first overflow port 11, the brewed coffee flows into the overflow channel from the first overflow port 11 and flows out from the second overflow port 22 at the bottom. The third overflow port 31 is in an arc-shaped strip, so as to avoid interference between the third overflow port 31 and the overflow channel when the adjusting dial 3 rotates between the first limit position and the second limit position.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention, and do not limit the protection scope of the present invention. For example, the numbers of the first outlet 10, the sinking blind hole 12, the second outlet 30, the through hole 50, the first connecting column 24, the second connecting column 44, the limiting hole 34, and the sealing ring 52 can all be changed according to actual situations, etc. Without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The protection scope of the present invention is defined by the appended claims and their equivalents.

[0029] The present invention overcomes the defects and deficiencies of the prior art, and creatively designs the adjustment of the coffee liquid outflow speed of the coffee machine during dripping. Through the circumferential limit and adjustment of the rotation angle of the adjusting dial 3, the adjustment of the coffee outflow speed in the funnel 1 is realized. Its operation is convenient. By adjusting and controlling the outflow speed, the modulation, extraction and brewing time of raw materials such as coffee powder in the funnel 1 is adjusted, and thus the coffee concentration is adjusted. The present invention also cooperates with the adjustment of the outflow speed and sets an overflow device, which can avoid the overflow problem caused by a large amount of water inflow, so that the excess water can flow out from the bottom of the brewing chamber 2 to the water receiving tray or coffee container through overflow, avoiding direct overflow from the top of the brewing chamber and avoiding contamination of the coffee machine, which is convenient for cleaning. Therefore, the liquid outflow speed of the flow rate adjustment control device of the drip coffee machine of the present invention can be adjusted, the operation is convenient, it is convenient to adjust the coffee concentration, it can avoid contamination of the coffee machine, and it is convenient for cleaning.

[0030] The present invention can be widely applied to the field of coffee brewing appliances.

Claims

1. A flow rate regulating control device for a drip coffee machine, Features: The invention comprises a funnel (1), a brewing chamber (2), an adjusting dial (3), and a bottom cover (4), wherein the funnel (1) is arranged in the brewing chamber (2), the top edge of the funnel (1) is overlapped and fixed on the top edge of the brewing chamber (2), the bottom of the funnel (1) is provided with at least one first outlet (10), the bottom of the brewing chamber (2) is provided with a central hole (20) and at least two first connecting columns (24), the adjusting dial (3) is provided with at least one second outlet (30), the bottom surface of the adjusting dial (3) is provided with at least two arc-shaped strip-shaped limiting holes (34) with the center as the center of the circle, the bottom cover (4) is provided with a brewing coffee outlet (7) at the center, and at least two second connecting columns (24) are provided at the periphery. The second connecting column (44) passes through the limiting hole (34) from bottom to top and is connected and fixed to the first connecting column (24). At the same time, the adjusting dial (3) is clamped between the bottom of the brewing bin (2) and the bottom cover (4), and the adjusting dial (3) is axially limited. The adjusting dial (3) can rotate along the center, and the connection between the second connecting column (44) and the first connecting column (24) is limited by the limiting hole (34). When the adjusting dial (3) is rotated to the first extreme limiting position, the first outlet (10) is completely connected with the second outlet (30), and the first outlet (10) and the second outlet (30) are formed. The second outlet (30), the central hole (20), and the brewed coffee outlet (7) are connected in sequence to form a brewed coffee flow channel; when the adjusting dial (3) is rotated to the second limit limit position, the misalignment between the first outlet (10) and the second outlet (30) is the largest; when the adjusting dial (3) is rotated from the first limit limit position to the second limit limit position, the misalignment between the first outlet (10) and the second outlet (30) gradually increases; the outer side wall of the adjusting dial (3) is provided with an outwardly convex shifter (9) and / or a shift damping pattern (39); the funnel (1) is provided with a first overflow port (11) near the top; the back side of the funnel (1) is provided with a first overflow port (11) from the first overflow port (11) to the bottom side of the funnel (1); A first overflow groove (13) is provided from the bottom of the brewing chamber (2), extending downward from the top to the bottom; a second overflow groove (21) is provided in the brewing chamber (2), extending downward from the top to the bottom; a second overflow port (22) is provided at the bottom of the second overflow groove (21); a third overflow port (31) is provided on the adjusting dial (3); a fourth overflow port (41) is provided on the bottom cover (4); after the funnel (1) is connected and fixed to the brewing chamber (2), the first overflow groove (13) and the second overflow groove (21) are sealed to form an overflow channel; the second overflow port (22) passes through the third overflow port (31) and the fourth overflow port (41) in sequence; the third overflow port (31) is in the shape of an arc strip.

2. The flow rate regulating control device for a drip coffee machine according to claim 1, Features: The bottom of the funnel (1) is provided with a downwardly convex guide post (14). At least one sunken blind hole (12) is provided at the edge of the guide post (14). The first outlet (10) is arranged on the side surface between the sunken blind hole (12) and the guide post (14) so that the sunken blind hole (12) communicates with the guide post (14). The guide post (14) and the sunken blind hole (12) extend into the central hole (20) and are adapted to the shape of the central hole (20) to position and fix the funnel (1). The middle part of the adjusting dial (3) is provided with an upwardly convex blind hole (32). The second outlet (30) is arranged on the side surface of the upwardly convex blind hole (32). The upwardly convex blind hole (32) is inserted into the guide post (14) from bottom to top. The positions of the first outlet (10) and the second outlet (30) are adapted to each other.

3. The flow rate adjusting and controlling device of the drip coffee maker according to claim 2, characterized in that: A sealing connection cap (5) is fixedly covered on the upwardly convex blind hole (32). At least one outwardly convex sealing ring (52) is provided on the side wall of the sealing connection cap (5) to seal between the bottom of the funnel (1) and the adjusting dial (3) to prevent the brewed coffee from overflowing onto the adjusting dial (3). A through hole (50) is provided on the side surface of the sealing connection cap (5). The size and position of the through hole (50) are the same as those of the second outlet (30).

4. The flow rate adjusting and controlling device of the drip coffee maker according to claim 3, characterized in that: A first positioning portion (35) is provided at the top of the upwardly convex blind hole (32). A second positioning portion (55) is provided at the top of the sealing connection cap (5). The second positioning portion (55) is adapted to the first positioning portion (35) so that the sealing connection cap (5) can be quickly and accurately covered and fixed on the upwardly convex blind hole (32).

5. The flow rate adjusting and controlling device of the drip coffee maker according to claim 1, characterized in that: An annular groove (46) is provided on the bottom cover (4) around the brewed coffee outlet (7). A sealing ring (6) is provided in the annular groove (46) to seal between the bottom cover (4) and the bottom of the adjusting dial (3) to ensure that the brewed coffee flows out from the brewed coffee outlet (7) and prevent it from overflowing onto the bottom cover (4).

6. The flow rate adjusting and controlling device of the drip coffee maker according to claim 1, characterized in that: A handle (8) is provided on the side surface of the brewing chamber (2).

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