Falling powder spraying mechanism and coffee machine
The rotating spray nozzle system addresses the issue of incomplete coffee extraction by uniformly distributing water over coffee powder, enhancing extraction efficiency and coffee quality.
Patent Information
- Application Number
- CN202422306564.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-20
AI Technical Summary
In existing coffee machines, hot water enters inconsistent with the position of the coffee powder falling, resulting in insufficient extraction and affecting the brewing quality of the coffee.
The powder drop spraying mechanism is adopted to drive the spraying shower to slide relative to the spraying tank through the driving structure, thereby realizing the rotation spraying of the brewing chamber, and combining the opening and closing action of the powder door to ensure that the hot water enters the coffee powder evenly.
It improves the extraction sufficiency of coffee powder and improves the brewing quality of coffee.
Smart Images
Figure CN223095305U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of coffee machines, and more particularly to a powder dropping and spraying mechanism and a coffee machine. Background Art
[0002] A coffee machine is a commonly used household appliance for brewing coffee. In a coffee machine, coffee beans are ground into coffee powder, and the coffee powder enters a brewing chamber through a powder dropping structure for brewing.
[0003] In the related art, a powder dropping port is arranged at the bottom of the powder dropping structure. The powder dropping port is opened or closed by a powder gate. The coffee powder enters the brewing chamber through the powder dropping port, resulting in a fixed powder dropping position in the brewing chamber. However, during the brewing process, the position where external hot water enters the brewing chamber is also fixed, and the position where the hot water enters is not the same as the powder dropping position of the coffee powder, resulting in insufficient extraction of coffee. Utility Model Content
[0004] The present application provides a powder dropping and spraying mechanism and a coffee machine. The powder dropping and spraying mechanism can improve the sufficiency of coffee powder extraction and thus improve the brewing quality of coffee.
[0005] In a first aspect, a powder dropping and spraying mechanism provided by the present application adopts the following technical solution:
[0006] A powder dropping and spraying mechanism, the powder dropping and spraying mechanism comprising:
[0007] A powder dropping bracket provided with a powder dropping port;
[0008] A spraying mechanism comprising a spraying tank and a spraying shower head located below the spraying tank and slidably connected to the spraying tank. The spraying shower head and the spraying tank enclose a spraying water cavity, and the spraying shower head is provided with a spraying port facing the brewing chamber;
[0009] A driving structure connected to the spraying shower head for driving the spraying shower head to slide relative to the spraying tank.
[0010] In a preferred embodiment, it further comprises a powder gate. The powder gate is arranged on the powder dropping bracket, and the powder gate is connected to the driving structure and opens or closes the powder dropping port under the drive of the driving structure.
[0011] In a preferred embodiment, the driving structure comprises a driving motor, a powder dropping rocker arm and a spraying connecting piece;
[0012] The spraying connecting piece connects the driving motor and the spraying shower head and rotates under the drive of the driving motor to drive the spraying shower head to slide relative to the spraying tank;
[0013] The powder-falling rocker arm is connected to the spraying connecting piece. When the driving motor rotates forward, the driving motor drives the powder-falling rocker arm to rotate through the spraying connecting piece to close the powder-falling port, and remains stationary relative to the powder door after the powder-falling port is closed; when the driving motor rotates reversely, the driving motor drives the powder-falling rocker arm to rotate through the spraying connecting piece to open the powder-falling port.
[0014] In a preferred embodiment, the top of the spraying connecting piece is fixedly connected to the output shaft of the driving motor, the bottom of the spraying connecting piece is connected to the powder-falling rocker arm, the bottom of the spraying connecting piece is provided with an assembly cavity and an end cover that cooperates with the assembly cavity. The end cover is fixedly connected to the powder-falling rocker arm and rotatably connected to the spraying connecting piece. The assembly cavity is provided with a limiting sliding hole and a pin that slides along the limiting sliding hole. The pin is sleeved with a compression spring and abuts against the end cover under the action of the compression spring. The surface of the end cover facing the spraying connecting piece is provided with limiting teeth that cooperate with the pin.
[0015] In a preferred embodiment, the end of the pin facing the end cover is provided with a guiding inclined surface that cooperates with the limiting teeth.
[0016] In a preferred embodiment, driving teeth are fixedly arranged on the circumferential surface of the spraying connecting piece, the spraying shower head is provided with spraying transmission teeth that mesh with the driving teeth, and the spraying connecting piece drives the spraying shower head to slide relative to the spraying groove through the driving teeth and the spraying transmission teeth.
[0017] In a preferred embodiment, the spraying groove is integrally circular, a water inlet pipe is connected to the top of the spraying groove, the spraying shower head is circular and matches the spraying groove, and the spraying ports are located on the bottom wall of the spraying shower head.
[0018] In a preferred embodiment, the spraying transmission teeth are arranged on the inner side of the ring of the spraying shower head.
[0019] In a preferred embodiment, the spraying shower head is fixedly connected to the powder-falling support through a plurality of support members. The support members include a fixing portion connected to the outer wall of the bottom of the powder-falling support and a limiting portion connected to the fixing portion. When the fixing portion is fixedly connected to the powder-falling support, the limiting portions of the plurality of support members hold the spraying shower head from the bottom of the spraying shower head.
[0020] In a second aspect, a coffee machine provided by the present application adopts the following technical solution:
[0021] A coffee machine is configured with the powder-falling spraying mechanism.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. During the use of the powder dropping and spraying mechanism, the spraying shower head is driven by the driving structure to slide relative to the spraying tank. The water entering the spraying water cavity through the water inlet pipe enters the brewing cavity through the spraying ports. Since the spraying shower head slides, the spraying ports rotate on a circular path, thereby realizing the rotary spraying of the brewing cavity, improving the sufficiency of coffee powder extraction, and further improving the brewing quality of coffee.
[0024] 2. When the driving motor rotates forward, the end cover is driven to rotate through the pin and the limit teeth, and the end cover drives the powder dropping rocker arm to rotate to drive the powder gate to close the powder dropping port; when the powder dropping port is closed, the driving motor continues to rotate forward. At this time, the powder dropping rocker arm no longer rotates, that is, the end cover no longer rotates, and the pin slides away from the end cover along the limit sliding hole under the action of the guiding inclined surface and the limit teeth against the elastic force of the compression spring, so that the driving motor continues to drive the spraying shower head to rotate through the spraying connecting piece; when the driving motor rotates in reverse, the end cover is driven to rotate through the pin and the limit teeth, and the end cover drives the powder dropping rocker arm to rotate to drive the powder gate to open the powder dropping port. Description of the Drawings
[0025] Figure 1 is the overall structural schematic diagram of the powder dropping and spraying mechanism described in the embodiment of the present application.
[0026] Figure 2 is the structural cooperation schematic diagram of the spraying tank and the spraying shower head described in the embodiment of the present application.
[0027] Figure 3 is the structural schematic diagram of the spraying shower head described in the embodiment of the present application.
[0028] Figure 4 is the structural installation schematic diagram of the spraying shower head described in the embodiment of the present application.
[0029] Figure 5 is the exploded view of the driving structure described in the embodiment of the present application.
[0030] Figure 6 is the structural schematic diagram of the chute fitting described in the embodiment of the present application.
[0031] Figure 7 is the structural installation schematic diagram of the chute fitting described in the embodiment of the present application.
[0032] Figure 8 is the structural schematic diagram of the powder dropping assembly described in the embodiment of the present application.
[0033] Figure 9 is the structural schematic diagram of the powder dropping port described in the embodiment of the present application.
[0034] Explanation of the reference numerals: 1. powder dropping bracket; 11. powder dropping port; 111. powder channel joint; 112. sealing member; 2. spray mechanism; 21. spray trough; 211. water inlet pipe; 22. spray showerhead; 221. spray port; 222. spray transmission gear; 3. driving structure; 31. driving motor; 32. powder dropping rocker arm; 321. waist-shaped hole; 33. spray connector; 331. fixing hole; 332. driving gear; 333. end cover; 3331. limiting gear; 34. push pin; 341. limiting protrusion; 342. compression spring; 4. supporting member; 41. fixing part; 42. limiting part; 5. powder door; 51. transmission shaft; 6. slide trough accessory; 61. slide trough frame; 7. powder dropping assembly; 71. powder dropping channel. DETAILED DESCRIPTION
[0035] The following is combined with Figures 1-9 This application is described in further detail.
[0036] Reference Figure 1 The present application provides a powder falling spraying mechanism, which includes a powder falling bracket 1 and a spraying mechanism 2 and a driving structure 3 arranged on the powder falling bracket 1. The driving structure 3 drives the spraying mechanism 2 to rotate, thereby realizing the rotational spraying of coffee powder in the brewing chamber and improving the brewing quality of coffee.
[0037] Reference Figure 2 and Figure 3 The spray mechanism 2 includes an annular spray slot 21 disposed on the powder falling bracket 1 and a spray shower 22 matched with the spray slot 21. The notch of the spray slot 21 is downward, and a water inlet pipe 211 is connected to the top of the spray slot 21. The spray shower 22 is annular and encloses the spray slot 21 to form a spray water cavity. The spray shower 22 is slidably connected to the spray slot 21, that is, the spray shower 22 rotates relative to the powder falling bracket 1 through the spray slot 21. The bottom wall of the spray shower 22 is provided with a spray port 221, and external hot water enters the spray water cavity through the water inlet pipe 211, and then enters the brewing cavity of the coffee machine from the spray water cavity. When the spray shower 22 rotates, the spray port 221 rotates with the spray shower 22, thereby realizing the rotary spraying of the coffee powder in the brewing cavity.
[0038] Furthermore, the annular inner ring of the spray shower head 22 is provided with spray transmission teeth 222 , and the driving structure 3 drives the spray shower head 22 to rotate via the spray transmission teeth 222 .
[0039] Reference Figure 4, the spray showerhead 22 is fixedly connected to the powder dropping support 1 through a plurality of support members 4. The support member 4 includes a fixing portion 41 connected to the outer wall of the bottom of the powder dropping support 1 and a limiting portion 42 connected to the fixing portion 41. When the fixing portion 41 is fixedly connected to the powder dropping support 1, the limiting portions 42 of the plurality of support members 4 hold the spray showerhead 22 from the bottom of the spray showerhead 22. The fixing portion 41 is fixedly connected to the bottom of the powder dropping support 1 by screws. The setting of the support member 4 not only provides a space for the spray showerhead 22 to rotate relative to the spray tank 21, but also facilitates the fixing of the spray showerhead 22.
[0040] The powder dropping support 1 is configured with a powder dropping port 11 and a powder door 5 that cooperates with the powder dropping port 11. The powder door 5 slides relative to the powder dropping support 1 to open or close the powder dropping port 11.
[0041] The driving structure 3 drives the spray showerhead 22 and the powder door 5 to act simultaneously. The driving structure 3 is specifically as follows:
[0042] Refer to Figure 5 , the driving structure 3 includes a driving motor 31, a powder dropping rocker arm 32, and a spray connecting member 33.
[0043] The spray connecting member 33 connects the driving motor 31 and the spray showerhead 22, and rotates under the drive of the driving motor 31 to drive the spray showerhead 22 to slide relative to the spray tank 21. The spray connecting member 33 is integrally cylindrical. A fixing hole 331 fixedly connected to the output shaft of the driving motor 31 is provided at the top of the spray connecting member 33. A driving tooth 332 meshing with the spray transmission gear 222 is provided on the outer side wall of the spray connecting member 33. When the driving motor 31 operates, it drives the spray connecting member 33 to rotate, and thus drives the spray showerhead 22 to rotate through the driving tooth 332 to achieve rotary spraying.
[0044] An assembly cavity and an end cover 333 cooperating with the assembly cavity are provided at the bottom of the spray connecting member 33. A limiting slide hole and a dial pin 34 are provided in the assembly cavity. The dial pin 34 is integrally cylindrical and slides vertically along the limiting slide hole. A limiting protrusion 341 is provided on the outer side wall of the dial pin 34. A compression spring 342 is sleeved on the part of the dial pin 34 above the limiting protrusion 341. The limiting dial pin 34 abuts against the end cover 333 under the action of the compression spring 342 and the limiting protrusion 341. The surface of the end cover 333 facing the spray connecting member 33 is configured with a limiting tooth 3331 cooperating with the dial pin 34.
[0045] Among them, the end cover 333 is rotatably connected to the spray connecting member 33. When the spray connecting member 33 rotates, it drives the end cover 333 to rotate through the limiting dial pin 34 and the limiting tooth 3331.
[0046] In a preferred example, two pin-pulling pins 34 are provided. The limiting protrusions 341 of the two pin-pulling pins 34 are fixedly connected so that the two pin-pulling pins 34 move synchronously. Two limiting teeth 3331 are provided on the end cover 333, and the two limiting teeth 3331 correspond to the positions of the two pin-pulling pins 34 respectively.
[0047] The end cover 333 is fixedly connected to the powder-falling swing arm 32 by bolts. The powder-falling swing arm 32 extends towards the powder gate 5 to form a driving arm. The driving arm is provided with an oblong hole 321, and the powder gate 5 is connected to the powder-falling swing arm 32 through a transmission shaft 51 passing through the oblong hole 321.
[0048] In the initial state, the two pin-pulling pins 34 are respectively located within the two limiting teeth 3331. The lower end of the pin-pulling pin 34 is provided with a guiding inclined surface that cooperates with the limiting tooth 3331. When the driving motor 31 rotates forward, first, it abuts against the limiting tooth 3331 through the guiding inclined surface, and then drives the end cover 333 and the powder-falling swing arm 32 to rotate, thereby driving the powder gate 5 to move to close the powder-falling port 11. After the powder-falling port 11 is closed, the driving motor 31 continues to rotate forward. At this time, the powder-falling swing arm 32 is stationary relative to the powder gate 5 and cannot continue to rotate with the driving motor 31. Then, the pin-pulling pin 34 slides upward relative to the spraying connecting member 33 under the guiding action of the guiding inclined surface against the elastic force of the compression spring 342, so that the pin-pulling pin 34 disengages from the limiting tooth 3331. Subsequently, the spraying connecting member 33 continues to rotate with the driving motor 31 to drive the spraying shower head 22 to continue rotating to achieve rotary spraying. When the driving motor 31 rotates in reverse, the driving motor 31 drives the powder-falling swing arm 32 to rotate through the pin-pulling pin 34 and the limiting tooth 3331, thereby driving the powder gate 5 to open the powder-falling port 11.
[0049] Refer to Figure 6 and Figure 7 As shown in [relevant figures], the sliding groove in which the powder gate 5 slides is composed of two chute fittings 6 and the powder-falling bracket 1. The chute fittings 6 are fixedly connected to the bottom of the powder-falling bracket 1 by screws. Stepped chute frames 61 are provided on the opposite sides of the two chute fittings 6. When the two chute fittings 6 are fixedly connected to the powder-falling bracket 1, a sliding groove required for the powder gate 5 to slide is formed between the two chute frames 61 and the outer side wall of the bottom of the powder-falling bracket 1.
[0050] Furthermore, the powder-falling port 11 extends downward to form a closed frame. The distance between the bottom of the closed frame and the chute frame 61 is adapted to the thickness of the powder gate 5, so that the powder gate 5 can close the powder-falling port 11 when it slides to the position of the powder-falling port 11.
[0051] Refer to Figure 8 and Figure 9, the powder - dropping and spraying mechanism 2 further includes a powder - dropping component 7. Coffee powder enters the powder - dropping port 11 through the powder - dropping channel 71 of the powder - dropping component 7 and thus falls into the brewing chamber of the coffee machine. Among them, the powder - dropping channel 71 is connected to the powder - dropping port 11 through a powder - channel connector 111, and the powder - channel connector 111 and the powder - dropping port 11 are hermetically connected through a seal 112.
[0052] The seal 112 fits to the top and the inner wall of the powder - dropping port 11, and the powder - channel connector 111 is inserted into the inner hole of the seal 112, so as to be hermetically connected to the powder - dropping port 11. Under normal conditions, the powder door 5 closes the powder - dropping port 11, thus isolating the powder - dropping channel 71 from the brewing chamber. When the powder door 5 moves to open the powder - dropping port 11, the coffee powder in the powder - dropping component 7 enters the brewing chamber through the powder - dropping channel 71 and the powder - dropping port 11.
[0053] In another preferred embodiment, the present application also provides a coffee machine, and the powder - dropping and spraying mechanism is configured inside the coffee machine.
[0054] By adopting the above - mentioned technical solution, during the use of the powder - dropping and spraying mechanism, the spraying shower head 22 is driven by the driving structure 3 to slide relative to the spraying tank 21. The water entering the spraying water chamber through the water inlet pipe 211 enters the brewing chamber through the spraying orifice 221. Since the spraying shower head 22 slides, the spraying orifice 221 rotates on a circular path, thereby realizing the rotary spraying of the brewing chamber, improving the sufficiency of the extraction of coffee powder, and further improving the brewing quality of coffee.
[0055] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A powder-dropping spraying mechanism, characterized in that, The powder dropping and spraying mechanism includes: A powder dropping support (1) provided with a powder dropping port (11); A spraying mechanism (2) including a spraying tank (21) and a spraying shower head (22) located below the spraying tank (21) and slidably connected to the spraying tank (21). The spraying shower head (22) and the spraying tank (21) enclose a spraying water cavity, and the spraying shower head (22) is configured with a spraying port (221) facing the brewing cavity; A driving structure (3) connected to the spraying shower head (22) for driving the spraying shower head (22) to slide relative to the spraying tank (21).
2. The powder dropping and spraying mechanism according to claim 1, wherein It further includes a powder door (5) provided on the powder dropping support (1). The powder door (5) is connected to the driving structure (3) and opens or closes the powder dropping port (11) under the drive of the driving structure (3).
3. The powder dropping and spraying mechanism according to claim 2, characterized in that, The driving structure (3) includes a driving motor (31), a powder dropping rocker arm (32), and a spraying connecting piece (33); The spraying connecting piece (33) connects the driving motor (31) and the spraying shower head (22), and rotates under the drive of the driving motor (31) to drive the spraying shower head (22) to slide relative to the spraying tank (21); The powder dropping rocker arm (32) is connected to the spraying connecting piece (33). When the driving motor (31) rotates forward, the driving motor (31) drives the powder dropping rocker arm (32) to rotate through the spraying connecting piece (33) to close the powder dropping port (11), and remains stationary relative to the powder door (5) after the powder dropping port (11) is closed; when the driving motor (31) rotates reversely, the driving motor (31) drives the powder dropping rocker arm (32) to rotate through the spraying connecting piece (33) to open the powder dropping port (11).
4. A powder dropping and spraying mechanism according to claim 3, characterized in that, The top of the spraying connecting piece (33) is fixedly connected to the output shaft of the driving motor (31), the bottom of the spraying connecting piece (33) is connected to the powder dropping rocker arm (32). The bottom of the spraying connecting piece (33) is configured with an assembly cavity and an end cover (333) matching the assembly cavity. The end cover (333) is fixedly connected to the powder dropping rocker arm (32) and rotatably connected to the spraying connecting piece (33). The assembly cavity is configured with a limiting sliding hole and a shift pin (34) sliding along the limiting sliding hole. The shift pin (34) is sleeved with a compression spring (342) and abuts against the end cover (333) under the action of the compression spring (342). The surface of the end cover (333) facing the spraying connecting piece (33) is configured with limiting teeth (3331) matching the shift pin (34).
5. The powder dropping and spraying mechanism according to claim 4, wherein, The end of the shift pin (34) facing the end cover (333) is configured with a guiding inclined surface matching the limiting teeth (3331).
6. A powder dropping and spraying mechanism according to claim 4, characterized in that, The circumferential surface of the spraying connecting piece (33) is fixedly provided with driving teeth (332), and the spraying shower head (22) is configured with spraying transmission teeth (222) meshing with the driving teeth (332). The spraying connecting piece (33) drives the spraying shower head (22) to slide relative to the spraying tank (21) through the driving teeth (332) and the spraying transmission teeth (222).
7. A powder dropping and spraying mechanism according to claim 6, characterized in that, The spray tank (21) is integrally circular ring-shaped, and a water inlet pipe (211) is connected to the top of the spray tank (21). The spray shower head (22) is circular ring-shaped and matches the spray tank (21), and the spray orifice (221) is located on the bottom wall of the spray shower head (22).
8. A powder dropping and spraying mechanism according to claim 7, characterized in that, The spray drive gear (222) is arranged on the inner side of the ring of the spray shower head (22).
9. The powder dropping and spraying mechanism according to claim 8, wherein The spray shower head (22) is fixedly connected to the powder dropping support (1) through a plurality of support members (4). The support member (4) includes a fixing portion (41) connected to the outer wall of the bottom of the powder dropping support (1) and a limiting portion (42) connected to the fixing portion (41). When the fixing portion (41) is fixedly connected to the powder dropping support (1), the limiting portions (42) of the plurality of support members (4) hold the spray shower head (22) from the bottom of the spray shower head (22).
10. A coffee machine, characterized in that, The coffee machine is configured with the powder dropping and spraying mechanism (2) according to any one of claims 1-9.