Steam backflow preventing device for bean grinding coffee machine and bean grinding coffee machine

Abstract

The utility model provides a steam backflow preventing device for a bean grinding coffee machine and the bean grinding coffee machine. The steam backflow preventing device comprises a coffee powder channel, a channel gate and a driving mechanism. The inlet end of the coffee powder channel is connected with a bean grinding mechanism of the bean grinding coffee machine, the outlet end of the coffee powder channel is connected with the side edge of a filter basket of the bean grinding coffee machine, the coffee powder channel is obliquely arranged downwards, and the size of the outlet end is larger than that of the inlet end; and the driving mechanism is used for driving the channel gate to close and open the outlet end. Coffee powder is effectively prevented from being attached to the outlet end, a large amount of water vapor and steam generated during coffee brewing can be blocked by matching with the channel gate, and blockage caused by the fact that the coffee powder is affected with damp and agglomerated is avoided.

Description

Technical Field

[0001] The utility model relates to an anti-steam-backflow device for a bean-grinding coffee machine and a bean-grinding coffee machine. Background Art

[0002] Due to the existing American fully automatic coffee machine system and the structure of the coffee powder outlet channel, static electricity adsorption occurs during grinding and powder discharging. Additionally, when brewing coffee, the steam generated by hot water causes the problem that coffee powder easily adheres to the periphery of the coffee powder outlet channel. After long-term use, the coffee powder outlet channel will gradually be blocked and narrowed, ultimately resulting in the problem of no powder discharging. It is hoped that the problem of coffee powder blockage in the coffee powder outlet channel can be improved through structural optimization. Due to the increasing market demand for American fully automatic coffee machines, currently, it is mostly adopted to regularly remind users to clean the coffee powder outlet channel by program. However, the coffee powder adsorbed on the channel for a long time is prone to bacterial growth and attracting insects, and it is also inconvenient for users. With our new design structure, it is possible to reduce the adsorption of coffee powder on the channel, thereby reducing the probability of channel blockage and the cleaning frequency. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiency that the coffee powder outlet channel will gradually be blocked and narrowed in the above-mentioned existing technology, ultimately resulting in the problem of no powder discharging, and to provide an anti-steam-backflow device for a bean-grinding coffee machine and a bean-grinding coffee machine.

[0004] To solve the above technical problems, the utility model provides an anti-steam-backflow device for a bean-grinding coffee machine, including: a coffee powder channel, a channel gate, and a driving mechanism; the inlet end of the coffee powder channel is connected to the bean-grinding mechanism of the bean-grinding coffee machine, and the outlet end of the coffee powder channel is connected to the side of the filter basket of the bean-grinding coffee machine. Among them, the coffee powder channel is arranged obliquely downward; the driving mechanism is used to drive the channel gate to close and open the outlet end, and the driving mechanism includes a motor, a gear, and a rack. The rack is arranged on the channel gate, the motor is rotationally connected to the gear, and the gear meshes with the rack.

[0005] In a better embodiment, the cross-section of the coffee powder channel gradually increases along the direction from the inlet end to the outlet end.

[0006] In a better embodiment, the cross-section of the coffee powder channel is rectangular.

[0007] In a better embodiment, the size of the outlet end is larger than that of the inlet end.

[0008] In a better embodiment, a sealing component is further arranged on the periphery of the outlet end. When the channel gate closes the outlet end, the sealing component is sealingly connected between the outlet end and the channel gate.

[0009] In a better embodiment, the driving mechanism includes two gears and two racks. The two racks are respectively arranged on both sides of the channel gate. The driving mechanism further includes a transverse shaft. The two gears are arranged at both ends of the transverse shaft to respectively engage with the two racks, and the motor drives the transverse shaft to rotate.

[0010] In a better embodiment, the channel gate is in parallel abutting contact and movable on the outer wall where the outlet end is located.

[0011] In a better embodiment, the inclination angle of the coffee powder channel is greater than or equal to 45 degrees.

[0012] In a better embodiment, the length of the coffee powder channel is less than or equal to 18 millimeters.

[0013] The present utility model further provides a coffee grinder, which includes a coffee grinding mechanism, a filter basket, and the anti-steam backflow device for a coffee grinder as described above.

[0014] In a better embodiment, it further includes a brewing chamber, and the filter basket is arranged in the brewing chamber. [[ID=PAGEREF _Toc314473783 \h 19]]

[0015] In a better embodiment, the filter basket includes a filter basket base and a filter basket cover. A water spraying shower head is arranged on the filter basket cover, and the water spraying shower head is used to supply hot water to the filter basket.

[0016] Compared with the prior art, the technical solution of the present utility model has the following beneficial effects:

[0017] 1. The outlet end of the coffee powder channel is connected to the side of the filter basket of the coffee grinder. Among them, the coffee powder channel is arranged obliquely downward, and the size of the outlet end is larger than that of the inlet end; the driving mechanism is used to drive the channel gate to close and open the outlet end. The size of the outlet end is larger than that of the inlet end, which effectively improves the adhesion of coffee powder to the outlet end. With the channel gate, it can block a large amount of water vapor and steam generated during coffee brewing, and avoid coffee powder from getting damp and caking, resulting in blockage.

[0018] 2. A sealing member is further arranged on the periphery of the outlet end. When the channel gate closes the outlet end, the sealing member is hermetically connected between the outlet end and the channel gate. Further prevent water vapor from entering the coffee powder channel and prevent coffee powder from caking due to moisture.

[0019] 3. The driving mechanism includes a motor, a gear, and a rack. The rack is arranged on the channel gate, the motor is rotationally connected to the gear, and the gear meshes with the rack. It can effectively ensure the stability and reliability of the transmission.

[0020] 4. The driving mechanism includes two gears and two racks. The two racks are respectively arranged on both sides of the channel gate. The driving mechanism further includes a transverse shaft. The two racks are arranged at both ends of the transverse shaft to respectively engage with the two racks, and the motor drives the transverse shaft to rotate, which can further ensure the stability and reliability of the transmission.

[0021] 5. The channel gate is movably abutted against the outer wall where the outlet end is located in parallel, so that the channel gate can scrape the coffee powder on the outlet end.

[0022] 6. It further includes a brewing chamber. The filter basket is arranged in the brewing chamber, which can keep the coffee powder in the filter basket and avoid splashing onto the coffee machine. Description of the Drawings

[0023] Figure 1 It is a three-dimensional schematic diagram of the bean grinder coffee machine in the preferred embodiment of the present invention;

[0024] Figure 2 It is a three-dimensional schematic diagram of the separation of the main body, brewing chamber and filter basket in the preferred embodiment of the present invention;

[0025] Figure 3 It is a schematic diagram of the steam backflow prevention device and the filter basket in the preferred embodiment of the present invention;

[0026] Figure 4 It is a three-dimensional schematic diagram of the steam backflow prevention device in the preferred embodiment of the present invention;

[0027] Figure 5 It is a cross-sectional view of the steam backflow prevention device in the preferred embodiment of the present invention;

[0028] Figure 6 It is an exploded view of the steam backflow prevention device in the preferred embodiment of the present invention;

[0029] Figure 7 It is an exploded view of the steam backflow prevention device in the preferred embodiment of the present invention. Detailed Embodiments

[0030] The following further describes the present invention in conjunction with the drawings and specific embodiments.

[0031] Refer to Figures 1 - 7, a coffee grinder and brewer, comprising a main body 1, a coffee grinding mechanism 2, a filter basket 3, a brewing chamber 4 and a steam backflow prevention device 5. The coffee grinding mechanism 2, the filter basket 3, the brewing chamber 4 and the steam backflow prevention device 5 are all arranged on the main body 1. The main body 1 includes a hot water supply mechanism, which includes a water tank, a heating component and a hot water outlet. The filter basket 3 and the brewing chamber 4 are detachably arranged on the main body 1, and the filter basket 3 is detachably arranged inside the brewing chamber 4. The filter basket 3 includes a filter basket base 31 and a filter basket cover 32. The filter basket cover 32 is rotatably covered on the upper opening of the filter basket base 31. A water spraying shower head 321 is arranged on the filter basket cover 32. When the filter basket 3 is arranged on the main body 1, the water spraying shower head 321 corresponds to the hot water outlet. The water spraying shower head 321 includes a plurality of water outlet holes 322 corresponding to the inside of the filter basket base 31, and the hot water supplied by the hot water outlet can enter the filter basket base 31 through the plurality of water outlet holes 322.

[0032] The steam backflow prevention device 5 is arranged between the coffee grinding mechanism 2 and the filter basket 3. The steam backflow prevention device 5 includes a coffee powder channel 51, a channel gate 53 and a driving mechanism 54. The inlet end 511 of the coffee powder channel 51 is connected to the coffee grinding mechanism 2, the outlet end 512 of the coffee powder channel 51 is connected to the side of the filter basket base 31. The coffee powder channel 51 is arranged obliquely downward, and the size of the outlet end 512 is larger than that of the inlet end 511. The driving mechanism 54 is used to drive the channel gate 53 to close and open the outlet end 512. The coffee powder channel 51 has an inclination angle A, and the size of the outlet end 512 is larger than that of the inlet end 511, which effectively improves the adhesion of coffee powder to the outlet end 512. With the cooperation of the channel gate 53, a large amount of water vapor and steam generated during coffee brewing can be blocked, avoiding the coffee powder from getting damp and caking, resulting in blockage.

[0033] In this embodiment, the cross-sectional area of the coffee powder channel 51 gradually increases along the direction from the inlet end 511 to the outlet end 512. The cross-section of the coffee powder channel 51 is rectangular. The inclination angle A of the coffee powder channel 51 is greater than or equal to 45 degrees, and the length L of the coffee powder channel 51 is less than or equal to 18 mm, which can reduce the path and time of coffee powder from the coffee grinding mechanism 2 to the filter basket 3 as much as possible, increase the efficiency. And after the coffee powder falls into the filter basket 3, the driving mechanism 54 drives the channel gate 53 to close the outlet end 512, which can prevent water vapor and steam from acting on the coffee powder on the outlet end 512.

[0034] A sealing member 55 is also provided at the periphery of the outlet end 512. When the channel gate 53 closes the outlet end 512, the sealing member 55 is sealingly connected between the outlet end 512 and the channel gate 53. In this embodiment, the sealing member 55 is a silica gel pad surrounding the outlet end 512. The channel gate 53 is movably abutted against the outer wall where the outlet end 512 is located in parallel. Therefore, the channel gate 53 can scrape the coffee powder on the outlet end 512. The setting of the sealing member 55 can further enhance the sealing performance.

[0035] The driving mechanism 54 includes a motor 541, a gear 542 and a rack 543. The rack 543 is arranged on the channel gate 53. The motor 541 is rotationally connected to the gear 542, and the gear 542 meshes with the rack 543. More specifically, the driving mechanism 54 includes two gears 542 and two racks 543. The two racks 543 are respectively arranged on both sides of the channel gate 53. The driving mechanism 54 further includes a transverse shaft 544. The two gears 542 are arranged at both ends of the transverse shaft 544 to respectively mesh with the two racks 543. The motor 541 drives the transverse shaft 544 to rotate. In this embodiment, the coffee powder channel 51 is formed inside a channel body. A groove 52 for receiving the transverse shaft 544 is formed on the upper side of the channel body. The transverse shaft 544 rotates on the groove 52. The steam reflux prevention device 5 further includes a channel housing 56 and a channel box cover 57. The channel body is arranged inside the channel housing 56. The channel box cover 57 is covered on the channel housing 56. The channel box cover 57 further includes two supporting bodies 571 extending downward. The supporting bodies 571 respectively support the upper side of the transverse shaft 544.

[0036] During use, control the grinding mechanism 2 of the bean grinder coffee machine to grind beans. The coffee powder enters the filter basket 3 through the coffee powder channel 51. After reaching the preset amount of coffee powder, control the driving mechanism 54 to drive the channel gate 53 to close the outlet end 512. At this time, the hot water supply mechanism supplies hot water again. The hot water flows out from the hot water outlet to the filter basket cover 32, and is evenly sprinkled on the coffee powder by the water spraying shower head 321 on the filter basket cover 32. The extracted coffee liquid flows out through the filter basket base 31 into the brewing chamber 4, and converges in the brewing chamber 4 and flows out from the outlet of the brewing chamber 4. After use, the brewing chamber 4 and the filter basket 3 can be taken out as a whole, and the coffee grounds can be poured out and cleaned.

[0037] As described above, it is only the preferred specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model who makes non-substantive modifications to the present utility model using this concept shall fall within the scope of infringement of the protection scope of the present utility model.

Claims

1. A steam backflow prevention device for a coffee grinder and coffee maker, characterized in that Comprising: A coffee powder channel, a channel gate, and a driving mechanism; an inlet end of the coffee powder channel is connected to a grinding mechanism of the coffee grinder, and an outlet end of the coffee powder channel is connected to a side of a filter basket of the coffee grinder, wherein the coffee powder channel is arranged obliquely downward; the driving mechanism is used to drive the channel gate to close and open the outlet end, the driving mechanism includes a motor, a gear, and a rack, the rack is arranged on the channel gate, the motor is rotatably connected to the gear, and the gear meshes with the rack.

2. The anti-steam-backflow device for a bean grinding coffee machine according to claim 1, characterized in that: The size of the outlet end is larger than the size of the inlet end.

3. The steam backflow prevention device for a bean grinding coffee machine according to claim 1, characterized in that: A sealing member is further arranged on a periphery of the outlet end. When the channel gate closes the outlet end, the sealing member is hermetically connected between the outlet end and the channel gate.

4. The anti-steam-backflow device for a bean grinding coffee machine according to claim 1, characterized in that: The driving mechanism includes two gears and two racks. The two racks are respectively arranged on two sides of the channel gate. The driving mechanism further includes a transverse shaft. The two gears are arranged at two ends of the transverse shaft to respectively mesh with the two racks, and the motor drives the transverse shaft to rotate.

5. The anti-steam-backflow device for a bean grinding coffee machine according to claim 3 or 4, characterized in that: The channel gate is in parallel abutting contact and movable on an outer wall where the outlet end is located.

6. The anti-steam-backflow device for a bean grinding coffee machine as described in claim 1, wherein: The inclination angle of the coffee powder channel is greater than or equal to 45 degrees.

7. A steam backflow prevention device for a bean grinding coffee machine according to claim 1, characterized in that: The length of the coffee powder channel is less than or equal to 18 millimeters.

8. A coffee bean grinding and brewing machine, characterized in that, Comprising a grinding mechanism, a filter basket, and a steam backflow prevention device for a coffee grinder according to any one of claims 1-7.

9. The coffee bean grinder-cum-coffee maker according to claim 8, wherein: It further includes a brewing chamber, and the filter basket is arranged in the brewing chamber.

10. A coffee bean grinding and brewing machine according to claim 8, wherein: The filter basket includes a filter basket seat and a filter basket cover. A water spraying shower head is arranged on the filter basket cover, and the water spraying shower head is used to supply hot water to the filter basket.

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