CN107126092B - A coffee machine with automatic cleaning function - Google Patents

Abstract

The invention discloses a coffee machine with automatic cleaning function, which comprises a crushing structure, the crushing structure includes a crushing chamber and a crushing device; The cover is provided with a water inlet, and the position of the water inlet is provided with a spray structure, and the spray structure sprays water on the inner wall of the crushing chamber and the cover of the crushing chamber; a filter screen is arranged under the outlet of the crushing chamber. The crushing chamber of the coffee machine of the present invention does not have a filter screen, which is convenient for cleaning; the spray structure adopts a rotatable design, and the rotation is realized under the drive of the steam itself, and the hot water automatically cleans the crushing chamber without dead ends; the outlet of the crushing chamber is provided with an opening device, When it is closed, the coffee powder will not block the channel; the filter is set in the pulp cup, so you will not forget to clean it; the coffee powder is in full contact with hot water in the crushing chamber for the first brewing and extraction and the second in the filter Second brewing extraction, brewing extraction is more fully, and the coffee is more fragrant.

Description

A coffee machine with automatic cleaning function

technical field

The invention belongs to the field of household appliances, in particular to a coffee machine with an automatic cleaning function.

Background technique

Since the drip coffee machine in the existing market was invented in 1965, because of its simple principle and product structure and low cost, it has always been liked by consumers in general, and its structure has been used so far (as shown in Figure 1). However, because this type of product uses coffee powder, and coffee powder is not easy to retain, and it is easy to be affected by moisture, etc., which will affect the taste and aroma. Therefore, the raw materials available in the existing market are basically roasted coffee beans. The beans are crushed into coffee powder with a grinding machine, which increases the action of making coffee and is inconvenient to operate.

Based on the above problems, some machines that combine the functions of grinding coffee beans and brewing coffee have appeared on the market. The principle is basically that the grinding chamber has a filter. One way is to grind the coffee beans to a certain fineness. Under the action of centrifugal force, it passes through the filter screen on the crushing chamber and enters the coffee extraction chamber (as shown in Figure 2). After the heating tube works, the water is heated and flows into the coffee extraction chamber through the siphon effect for coffee making. In this way, since the coffee extraction chamber is connected to the crushing chamber, and there will be some coffee powder residue in the crushing chamber, the crushing chamber needs to be cleaned and water vapor will enter the crushing chamber and condense. There are many cleaning objects and the user experience is not good. Another method is that the coffee bean crushing chamber and the coffee extraction chamber are integrated (as shown in Figure 3). After the coffee beans are crushed, the coffee beans are extracted in the crushing chamber. The crushing chamber, the filter, and the cover need to be cleaned. The crushing chamber is easy to forget to clean.

Contents of the invention

The object of the present invention is to provide a coffee machine with an automatic cleaning function to address the deficiencies of the prior art.

The object of the present invention is achieved through the following technical solutions: a coffee machine with automatic cleaning function, including a crushing structure, the crushing structure includes a crushing chamber for holding raw materials, and a crushing chamber for crushing raw materials located inside the crushing chamber device; the upper part of the crushing chamber is provided with a crushing chamber cover, the bottom surface of the crushing chamber or the lower part of the side wall is provided with an outlet, and a water inlet is provided on the crushing chamber cover. Water is sprayed on the inner wall of the chamber and the cover of the crushing chamber; a filter screen is arranged below the outlet of the crushing chamber.

Further, the spray structure has several spray holes, the number of spray holes is greater than or equal to 5, and the diameter of the spray holes is 0.5-2 mm.

Further, the spray structure can rotate under the reaction force of steam and water.

Further, the spray structure has at least one spray port, and at least one spray port sprays water towards the crushing chamber cover.

Further, an outlet valve is provided at the bottom outlet of the crushing chamber, and the outlet valve is closed during the raw material crushing process.

Further, the opening method of the outlet valve is driven to open by a thermally deformable element, or driven by an electric drive element, or opened manually.

Further, the filter screen is placed inside the pulp receiving cup, and is detachably connected with the pulp receiving cup, or the filter screen is detachably connected with the fuselage, and the pulp receiving cup is located under the filter screen.

Further, the crushing device is a blade or a grinding structure.

Further, a sealing structure is provided between the crushing chamber and the crushing chamber cover; air holes are provided on the top of the crushing chamber cover; the crushing chamber has blocking features, or is provided with blocking components inside.

A pulping method in which cleaning and extraction are carried out simultaneously, the method comprising:

(1) Put the raw material into the crushing chamber, and the outlet valve at the bottom of the crushing chamber is closed;

(2) pulverize raw materials by pulverizing device;

(3) After the crushing is completed, add hot water to the crushing chamber through the spray structure on the top of the crushing chamber, and spray water on the inner wall of the crushing chamber and the crushing chamber cover through the spray structure;

(4) The crushing device is stirred to mix the crushed raw material and hot water in the crushing chamber for the first extraction;

(5) The outlet valve is opened, and the powder slag and water flow into the filter screen together, and then flow into the pulp receiving cup after being filtered by the filter screen;

(6) Continue to add hot water to the crushing chamber. The hot water will clean the inner wall of the crushing chamber and the crushing chamber cover through the spray structure, and bring the remaining powder residue in the crushing chamber into the filter screen, and perform the first step on the powder residue in the filter screen. The second extraction completes the coffee making.

The beneficial effects of the present invention are:

1. The coffee bean crushing chamber does not have a filter, and the crushing chamber is convenient for automatic cleaning;

2. The water inlet of the crushing chamber adopts a rotatable design, which is driven by the steam itself to rotate, and the hot water automatically cleans the crushing chamber without dead ends.

3. There is an opening device at the outlet of the crushing chamber, which is closed when crushing and opened after the crushing is completed, so that the coffee powder will not block the passage.

3. The outlet valve of the crushing chamber is opened by thermal deformation elements, no electrical drive elements are needed, the structure is simple, and the cost is low.

4. The filter screen is set in the pulp receiving cup, which has a simple structure, saves the space of the whole machine, and will not forget to clean it.

5. The coffee powder is fully contacted with hot water in the crushing chamber for the first brewing extraction and the second brewing extraction in the filter screen. The brewing extraction is more sufficient and the coffee is more fragrant.

Description of drawings

Fig. 1 is a schematic structural diagram of a drip coffee machine in the background technology;

Fig. 2 is a schematic structural diagram of a coffee machine in which the functions of grinding coffee beans and making coffee are integrated in the background technology;

Fig. 3 is a schematic structural diagram of a coffee machine in which the coffee bean crushing chamber and the coffee extraction chamber are integrated in the background art;

Fig. 4 is the structural representation of the coffee machine with automatic cleaning function of the present invention;

Fig. 5 is a cross-sectional view of a spray structure with a spray port in the present invention;

Fig. 6 is a schematic view of the angle of the spray structure with one spray port in the present invention;

Fig. 7 is a schematic diagram of a spray structure with four spray ports in the present invention;

Fig. 8 is a schematic diagram of the non-sealed design of the outlet valve of the present invention when the outlet valve is closed;

Figure 9 is a schematic diagram of the sealing design of the outlet valve and the crushing chamber when the outlet valve is closed;

Fig. 10 is a schematic diagram of a spray structure with spray holes in the present invention;

In Fig. 4-10, the lower base 1, the crushing motor 2, the upper body 3, the sealing structure 4, the spray structure 5, the spray hole 51, the spray port 52, the crushing chamber cover 6, the crushing chamber 7, and the blade 8 , water tank 9, outlet valve 10, outlet valve driving structure 11, leak-proof valve 12, cup cover 13, filter screen 14, slurry cup 15, heat preservation board 16, heating pipe 17, heat insulation sleeve 18, base 19, seal 20.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

A coffee machine with an automatic cleaning function provided by the present invention includes a crushing structure, the crushing structure includes a crushing chamber 7 for containing raw materials, and a crushing device located inside the crushing chamber 7 for crushing raw materials; the upper part of the crushing chamber 7 is provided with There is a crushing chamber cover 6, an outlet is provided on the bottom surface or the lower part of the side wall of the crushing chamber 7, and a water inlet is provided on the crushing chamber cover 6, and a spray structure 5 is provided at the position of the water inlet, and the spray structure 5 is opposite to the crushing chamber. 7 and the inner wall of the crushing chamber cover 6 to spray water; a filter screen 14 is arranged below the outlet of the crushing chamber 7 .

Further, the spray structure 5 has several spray holes 51, the number of spray holes 51 is greater than or equal to 5, and the diameter of the spray holes 51 is 0.5-2mm.

Further, the spray structure 5 can rotate under the reaction force of steam and water.

Further, the spray structure 5 has at least one spray port 52 , and at least one spray port 52 sprays water towards the crushing chamber cover 6 .

Further, an outlet valve 10 is provided at the bottom outlet of the crushing chamber 7, and the outlet valve 10 is closed during the raw material crushing process.

Further, the opening method of the outlet valve 10 is driven by a thermally deformable element, or driven by an electrical driving element, or opened manually.

Further, the filter screen 14 is placed inside the pulp receiving cup 15 and is detachably connected to the pulp receiving cup 15, or the filter screen 14 is detachably connected to the machine body, and the pulp receiving cup 15 is located below the filter screen 14.

Further, the crushing device is a blade 8 or a grinding structure.

Further, a sealing structure 4 is provided between the crushing chamber 7 and the crushing chamber cover 6; air holes are provided on the top of the crushing chamber cover 6; the crushing chamber 7 has blocking features, or is provided with blocking components inside.

A pulping method in which cleaning and extraction are carried out simultaneously, the method comprising:

(1) Put the raw material into the crushing chamber 7, and the outlet valve 10 at the bottom of the crushing chamber 7 is in a closed state;

(2) pulverize raw materials by pulverizing device;

(3) After the crushing is completed, add hot water to the crushing chamber 7 through the spray structure 5 on the top of the crushing chamber 7, and spray water on the inner wall of the crushing chamber 7 and the crushing chamber cover 6 through the spray structure 5;

(4) The crushing device is stirred to mix the crushed raw material with hot water in the crushing chamber 7 for the first extraction;

(5) The outlet valve 10 is opened, and the powder slag and water flow into the filter screen 14 together, and flow into the pulp receiving cup 15 after being filtered by the filter screen 14;

(6) Continuously add hot water to the crushing chamber 7, the hot water passes through the spray structure 5 to clean the crushing chamber 7 and the inner wall of the crushing chamber cover 6, and the remaining powder residue in the crushing chamber 7 is brought into the filter screen 14, and the filter screen The powder residue within 14 is extracted for the second time to complete the coffee making.

Example 1

In this embodiment, as shown in Figure 4, the coffee machine includes an upper body 3, a lower machine base 1 and a base 19, a crushing chamber 7 and a water tank 9 are installed on the upper body 3, and a heating pipe 17, a heat preservation tube 17 is installed in the base 19 Plate 16 and heat insulation sleeve 18; the bottom of the crushing chamber 7 is provided with a blade 8 for crushing coffee beans, and the blade 8 is driven by the crushing motor 2; the drive shaft of the crushing motor 2 directly passes through the bottom of the crushing chamber 7 and extends into the crushing chamber 7, A sealing structure is provided between the drive shaft and the crushing chamber 7, and the drive shaft can also drive the cutter shaft passing through the crushing chamber 7 through a shaft coupling, and a sealing structure is provided between the cutter shaft and the crushing chamber 7.

The upper part of the crushing chamber 7 is provided with a crushing chamber cover 6, and a sealing structure 4 is provided between the crushing chamber 7 and the crushing chamber cover 6; the bottom surface of the crushing chamber 7 or the lower part of the side wall is provided with an outlet, and the crushing chamber cover 6 is provided with a water inlet. The position of the water inlet is designed with a rotatable spray structure 5, which can rotate 360 degrees under the reaction force of steam and water, and spray water on the inner wall of the crushing chamber 7 and the crushing chamber cover 6. As shown in Figures 5 and 6, the spray structure 5 has a spray port 52, and the spray port 52 sprays water towards the crushing chamber cover 6, in Figure 6, 90°<=a<180°, 0<b< 90°. When four spray ports 52 are used, the spray structure 5 is as shown in FIG. 7 .

An outlet valve 10 is provided at the bottom outlet of the crushing chamber 7 , and the outlet valve 10 is closed during the coffee bean crushing process, so that the crushed coffee powder is difficult to leave the crushing chamber 7 . When the outlet valve 10 is closed, it can be non-sealed with the crushing chamber 7 as shown in FIG. 8 , or it can be sealed as shown in FIG. 9 . A seal 20 is provided between the outlet valve 10 and the outlet valve driving structure 9 .

After the pulverization is completed, the heating pipe 17 is heated, so that the hot water in the water pipe integrated with the heating pipe 17 is added to the pulverization chamber 7 through the water inlet of the pulverization chamber 7 and the spray structure 5, and the pulverization chamber 7 is heated by the spray structure 5. and the inner wall of the crushing chamber cover 6 to spray water; agitate the blade 8 at a low speed to mix the crushed coffee powder and hot water in the crushing chamber 7 for the first extraction; the outlet valve 10 of the crushing chamber is driven to open by the thermal deformation element, and the coffee The grounds and the water flow into the filter screen 14 which is detachably connected with the coffee cup, and the filtered coffee is contained in the coffee cup. The follow-up heating tube 17 is continuously heated, hot water is added to the crushing chamber 7 through the water inlet of the crushing chamber 7 and the spray structure 5 to clean the inner wall of the crushing chamber 7 and the crushing chamber cover 6, and the remaining coffee grounds in the crushing chamber 7 Bring it into the filter 14, and the hot water will extract the coffee grounds stored in the filter 14 for the second time, until the water in the water tank 9 is heated, that is, the coffee is made, and the crushing chamber 7 and the aisle are also cleaned. The realization scheme is simple reliable.

Example 2

In this embodiment, most of the structure and principle of the coffee machine are the same as those in Embodiment 1, the difference is that a water inlet is provided on the crushing chamber cover 6, and a spray structure 5 is designed at the position of the water inlet, and the spray structure 5 has several As for the spray holes 51, as shown in FIG. 10, the number of the spray holes 51 is greater than or equal to 5, and the diameter of the spray holes 51 is 0.5-2mm.

Example 3

In this embodiment, most of the structures and principles of the coffee machine are the same as in Embodiment 1, the difference is that the pulverizing device is a grinding structure, and the opening mode of the outlet valve 10 is driven by an electrical driving element (such as a solenoid valve, a motor) The filter screen 14 is detachably connected to the body, and the coffee cup is located below the filter screen 14 .

The present invention is not limited to the above-mentioned specific embodiments, and those skilled in the art can adopt various other specific embodiments to implement the present invention according to the content disclosed in the present invention. Therefore, any design that adopts the design structure and ideas of the present invention and makes some simple changes or changes falls within the scope of protection of the present invention.

Claims (9)

1. The coffee machine with the automatic cleaning function is characterized by comprising a crushing structure, wherein the crushing structure comprises a crushing cavity (7) for containing raw materials, a crushing device and a crushing motor (2), wherein the crushing device is positioned in the crushing cavity (7) and used for crushing the raw materials, the crushing motor (2) is used for driving the crushing device, and the crushing motor (2) is arranged at the bottom of the crushing cavity (7); the upper part of the crushing cavity (7) is provided with a crushing cavity cover (6), the bottom surface or the lower part of the side wall of the crushing cavity (7) is provided with an outlet, the crushing cavity cover (6) is provided with a water inlet, the position of the water inlet is provided with a spraying structure (5), and the spraying structure (5) sprays water to the crushing cavity (7) and the inner wall of the crushing cavity cover (6); a filter screen (14) is arranged below the outlet of the crushing cavity (7), an outlet valve (10) is arranged at the outlet position of the bottom of the crushing cavity (7), and the outlet valve (10) is closed in the raw material crushing process; the filter screen (14) is used for filtering a mixture of raw materials and water discharged through the outlet when the outlet valve (10) is opened.

2. The coffee machine with the automatic cleaning function according to claim 1, wherein the spraying structure (5) is provided with a plurality of spraying holes (51), the number of the spraying holes (51) is more than or equal to 5, and the diameter of the spraying holes (51) is 0.5-2mm.

3. A coffee machine with automatic cleaning function according to claim 1, characterized in that the spray structure (5) is rotatable under the reaction forces of steam and water.

4. A coffee machine with automatic cleaning function according to claim 3, characterized in that the spraying structure (5) has at least one spraying opening (52), and that at least one spraying opening (52) sprays water towards the crushing chamber cover (6).

5. A coffee machine with automatic cleaning function according to claim 1, characterized in that the opening of the outlet valve (10) is driven by a thermally deformable element, or by an electric drive element, or manually.

6. The coffee machine with the automatic cleaning function according to claim 1, wherein the filter screen (14) is arranged inside the pulp receiving cup (15) and is detachably connected with the pulp receiving cup (15), or the filter screen (14) is detachably connected with the machine body, and the pulp receiving cup (15) is arranged below the filter screen (14).

7. A coffee machine with automatic cleaning function according to claim 1, characterized in that the comminuting means are blades (8) or grinding structures.

8. A coffee machine with automatic cleaning function according to claim 1, characterized in that a sealing structure (4) is arranged between the crushing chamber (7) and the crushing chamber cover (6); the top of the crushing cavity cover (6) is provided with an air hole; the comminution chamber (7) has a blocking feature or is internally provided with a blocking member.

9. A pulping process with simultaneous washing and extraction, the process comprising:

(1) The raw materials are put into a crushing cavity (7), and an outlet valve (10) at the bottom of the crushing cavity (7) is in a closed state;

(2) Crushing the raw materials by a crushing device;

(3) After the crushing is finished, hot water is added into the crushing cavity (7) through a spraying structure (5) at the top of the crushing cavity (7), and water is sprayed to the inner walls of the crushing cavity (7) and the crushing cavity cover (6) through the spraying structure (5);

(4) Stirring by a crushing device, mixing the crushed raw materials with hot water in a crushing cavity (7), and performing primary extraction;

(5) The outlet valve (10) is opened, powder slag and water flow into the filter screen (14) together, and flow into the slurry receiving cup (15) after being filtered by the filter screen (14);

(6) And continuously adding hot water into the crushing cavity (7), cleaning the inner walls of the crushing cavity (7) and the crushing cavity cover (6) through the spraying structure (5), taking residual powder slag in the crushing cavity (7) into the filter screen (14), and performing secondary extraction on the powder slag in the filter screen (14) to finish coffee making.

Images