CN201026128Y - coffee pot - Google Patents

Abstract

The utility model discloses a coffee pot. The water-saving pot comprises a pot body, a pot cover covered on the pot body, a detachable grinding cup arranged in the pot body, a motor matched with a grinding knife in the grinding cup, a water supply tank, a mixed brewing device communicated with the grinding cup and the water supply tank respectively, a water outlet nozzle arranged below the mixed brewing device, and a heater for heating water in the water supply tank, wherein the heater and the motor are connected with a main control circuit in the pot body, the grinding cup comprises a cup body, a cup cover covered on the cup body and a filter screen, and the filter screen is positioned at the communication position of the grinding cup and the mixed brewing device and is characterized in that: the filter screen is provided with a plurality of filter holes with different sizes, and the size of the filter hole in the middle of the filter screen is larger than that of the filter holes in the upper part and the lower part. The utility model discloses a coffee pot simple structure, guarantee to filter out powder rate and filter back coffee powder finer, brew back coffee taste better.

Description

coffee pot

technical field

The utility model relates to a device for making coffee, in particular to a coffee pot.

Background technique

At present, coffee drinks are more and more popular among mass consumers, and coffee has become a part of some people's daily life. In China, drinking coffee has become a fashion, especially for coffee lovers, a cup of fragrant and delicious coffee will greatly improve their work efficiency. At present, there is instant coffee on the market. The ground coffee powder is mixed with other coffee mates and sugar and then packaged. The user only needs to brew the mixed powder with boiling water. There is a relatively long time interval between brewing and drinking, and the taste is not as good as that directly brewed after grinding. In order to be able to brew a cup of delicious coffee, it is necessary to grind the coffee beans before brewing. The process is generally cumbersome. In order to solve this cumbersome process, a coffee pot that integrates grinding and brewing has appeared. After the coffee beans are put in this kind of coffee pot, when grinding, the water in the pot is heated, and the ground coffee powder is mixed with hot water to directly brew a cup of coffee. At the same time, in order to better clean up the remaining coffee beans, the grinding device adopts an easy-to-detach structure. After use, the grinding device can be removed and rinsed directly. This kind of coffee pot is composed of a pot body and a pot cover. The pot cover is fastened on the pot body. There is a detachable grinding cup inside the pot body. There is a rotatable grinding knife in the grinding cup. The lower part of the cup body is sealed with a motor. The motor drives the grinding knife to rotate and grind the coffee beans. There is a water supply tank and a mixing and brewing device in the kettle body, the water supply tank and the grinding cup are connected with the mixing and brewing device, a filter is provided at the position where the grinding cup and the mixing and brewing device communicate, and a heater is also arranged in the kettle body, so The above-mentioned heater heats the water in the water supply tank. There is a main control circuit in the pot body. There are switches, heaters and motors in the main control circuit. The switch can control the connection or disconnection of the main control circuit, and then control the heater and The motor works. When in use, add coffee beans to the grinding cup, add water to the water supply tank, cover the lid, switch on the main control circuit, the motor drives the grinder to grind the coffee beans, and at the same time, the heater grinds the water in the water supply tank. Heating, the ground coffee powder enters the mixing and filling device through the filter screen through the channel, and the heated water is pumped into the mixing and filling device to mix and fill with the ground coffee beans, and the filled coffee is discharged from the spout Squeeze out and enjoy a delicious cup of coffee. Another example is the No. 200520111272.5 utility model application that the applicant applied for earlier, which is a coffee pot that combines grinding and cooking. , control circuit, the coffee cup holder is flexibly connected to the lower part of the upper pot body; the top of the coffee cup upper cover placed on the base of the lower pot body has a hole that matches and communicates with the lower part of the coffee cup holder; the grinder cup is inserted into the upper In the grinder cup hole of the pot body, the outlet of the grinder cup output pipe communicates with the filter cup placed in the coffee cup holder; the connector is fixed at the lower end of the upper pot body, one end of the connector communicates with the water tank, and the other end communicates with the coffee holder Cups connect. However, the diameters of the filter holes on the filter screens used by these coffee pots are consistent. Although such a filter screen can also filter the ground coffee powder, when the filter hole size is small, although it is guaranteed that only fine coffee powder can pass through. Enter the mixing and filling device through the filter hole, but because the amount of filtered coffee powder is relatively small, after filling, the taste of the filled coffee will be relatively weak due to the small amount of coffee powder, which will affect the taste. If the size is too large, although the filtering capacity is increased, some larger coffee particles will enter the mixing and filling device through the filter screen during the filtering process, because the large coffee particles will deposit during the filling process If it is not turned on, the strong taste of coffee cannot enter the brewed coffee, which greatly affects the taste of the coffee.

Utility model content

The utility model is completed to solve the above-mentioned deficiencies in the prior art. The purpose of the utility model is to provide a filter with a simple structure, which can not only ensure that the filtered coffee powder is relatively fine, but also ensure the filtration of the ground coffee powder. Quantity, so as to ensure the coffee pot with better coffee taste after filling.

The coffee pot of the present utility model comprises a pot body and a pot cover which is closed on the pot body, a detachable grinding cup is arranged in the pot body, a motor matched with a grinding knife in the grinding cup, and a water supply tank , a mixing and brewing device respectively connected with the grinding cup and the water supply tank, a water spout arranged under the mixing and brewing device, and a heater for heating the water in the water supply tank, the heater and the The motor is connected to the main control circuit in the pot body through a switch, and the grinding cup includes a cup body, a cup cover on the cup body and a filter screen, and the filter screen is located between the grinding cup and the The connecting part of the mixing and brewing device is characterized in that: the filter net is arranged with a plurality of filter holes of different sizes, and the size of the filter holes in the middle of the filter net is larger than the size of the filter holes in the upper and lower parts.

The utility model also has the following additional technical features:

A further preferred solution is that two adjacent rows of filter holes on the filter are arranged in a staggered manner.

The height of the upper and lower parts of the filter net is 1/4-2/5 of the height of the overall filter net, and the height of the middle part is 1/5-1/2 of the overall filter net.

The heights of the upper, middle and lower parts of the filter net are all 1/3 of the height of the overall filter net.

The diameters of the upper and lower small filter holes on the filter screen are 2.2 to 2.8 mm, the diameters of the large filter holes in the middle of the filter screen are 2.8 mm to 3.4 mm, and the distance between the centers of the two holes in the horizontal direction of the filter holes is 4 mm. -6mm.

A further preferred solution is that the diameter of the upper and lower small filter holes on the filter screen is 2.6 mm, and the diameter of the large filter hole in the middle part of the filter screen is 3 mm.

The upper and lower parts of the filter screen are respectively provided with three rows of small filter holes, and the middle part of the filter screen is provided with three rows of large filter holes.

A cleaning hole is provided at the lower edge of the filter net.

The switch includes a first switch and a second switch connected in series, a first touch piece is extended from the lid, the first touch piece cooperates with the first switch, and the inner wall of the pot lid A push rod and a second touch piece matched with the second switch are arranged on the top, and the push rod touches the second touch piece when the lid is closed.

The switch includes a micro switch and a touch switch connected in series, at least two tongues are formed on the side wall of the cup cover, and a mounting seat is provided at the bottom of the grinding cup, and a plurality of card slots are formed on the mounting seat , the tongue snaps into the slot, one of the slots is provided with a micro switch, the tongue snaps into the slot to touch the micro switch, the top of the kettle body is provided with a touch switch, the The inner wall of the pot lid is provided with a touch piece, and the touch piece controls the opening or closing of the touch switch.

Compared with the prior art, the coffee pot of the present utility model has the advantages that a plurality of filter holes of different sizes are arranged on the filter net, and the size of the filter holes arranged in the middle of the filter net is larger than that of the filter holes at the upper and lower parts of the filter net. Size, so that during the grinding process driven by the motor, the ground coffee powder will move along the wall of the grinding cup under the action of centrifugal force, and the fine particles are relatively light, compared with the relatively large particles, very fine particles The coffee powder will move along the cup wall in the upper part of the grinding cup, while the smaller particles mostly move in the middle of the grinding cup, while the larger coffee particles will move along the cup wall at the bottom of the grinding cup due to their weight , while accepting further grinding by the grinding knife. Such very fine coffee powder is filtered into the mixing and filling device through the relatively small filter holes in the upper part of the filter, while a large number of relatively small particles can pass through the relatively large filter holes in the middle of the grinding cup and finally reach the mixing device. The foam filling device, and the larger coffee particles are blocked by the smaller filter holes in the lower part of the grinding cup and cannot enter the mixing and filling device. This can ensure that the coffee powder filtered into the mixing and filling device is relatively small, and at the same time It also ensures the amount of coffee powder that is filtered into the mixing and filling device, so that the ground coffee powder can be filled into a fragrant, fragrant and delicious coffee beverage in the shortest time.

Description of drawings

Fig. 1 overall view of the utility model coffee pot

Fig. 2 schematic diagram of grinding cup and filter screen of the utility model coffee pot

Fig. 3 schematic diagram of filter net of coffee pot of the present utility model

Fig. 4 internal structure diagram of the utility model coffee pot

Fig. 5 schematic diagram of another embodiment of the utility model coffee pot

Fig. 6 Internal structure diagram of another embodiment of the utility model coffee pot

Fig. 7 is a schematic diagram of another embodiment of the coffee pot of the present invention, the joint part of the pot lid and the pot body

Fig. 8 Internal top view of another embodiment of the utility model coffee pot

Fig. 9 Internal structure diagram of another embodiment of the utility model coffee pot

Fig. 10 is a schematic diagram of another embodiment of the coffee pot of the present utility model, the joint part of the pot body and the pot lid

Fig. 11 Enlarged view of part A in Fig. 10 of the utility model coffee pot

Fig. 12 The main control circuit circuit diagram of the utility model coffee pot

Description of figure number

1…pot body 2…pot lid 3…grinding cup 4…motor 5…water supply tank

6...mixing and brewing device 7...filter 8...heater 11...first switch

12...Second switch 13...Touch switch 21...Second touch piece 22...Ejector

31...cup body 32...cup cover 321...first touch piece 33...grinding knife

61...Water spout 62...Filter cup 71...Cleaning hole 91...Tongue

92...Card slot 93...Installation seat 95...Third touch piece 96...Micro switch

Detailed ways

The utility model is described in detail below in conjunction with accompanying drawing:

The coffee pot of the present utility model, please refer to Fig. 1 to Fig. 4, Fig. 9 and Fig. 12, includes a pot body 1 and a pot cover 2, the pot cover 2 is fastened on the pot body 1, and the interior of the pot body 1 is made of The grinding cup 3 has a rotatable grinding knife 33 inside the grinding cup 3, and a motor is sealed in the lower part of the cup body 31. The motor is coaxially connected with the grinding knife 33, and the motor rotates to drive the shaft to rotate, thereby driving the grinding knife 33 to rotate to grind the coffee beans. grind. There is a water supply tank 5 and a mixing and brewing device 6 inside the pot body 1, the water supply tank 5 and the grinding cup 3 are connected with the mixing and brewing device 6, and an opening is provided on the top of the water supply tank 5, and the opening communicates with the mixing and brewing device 6 , the heated water is supplied to the mixing and brewing device 6, the grinding cup 3 and the mixing and brewing device 6 are connected through a channel, and a filter screen 7 is arranged at the channel position where the grinding cup 3 and the mixing and brewing device 6 communicate, and the pot Also be provided with heater 8 in the body 1, described heater 8 heats the water in the water supply tank 5, there is main control circuit in the kettle body 1, switch, heater 8 and motor 4 are arranged in the main control circuit, switch can Control the on or off of the main control circuit, and then control the heater 8 and the motor 4 to work. A plurality of filter screens 7 of different sizes are arranged on the filter screen 7, and three rows of filter holes are arranged at least on the filter screen 7, and each row has at least five filter holes, and the size of the filter holes arranged in the middle of the filter screen 7 is larger than that in the filter screen 7. The size of the filter holes arranged in the upper and lower parts of the net 7. During use, after coffee beans are placed into the grinding cup 3, water is added to the water supply tank 5, the lid 2 is covered, the switch is connected to the main control circuit, the motor 4 works to drive the grinding knife 33 to grind the coffee beans, and the heater 8 The water in the water supply tank 5 is heated, and the ground coffee particles rotate along the wall of the grinding cup 3 under the action of centrifugal force, and the extremely fine powder after grinding rotates along the upper part of the filter cup 62 due to its relatively light weight. It can be filtered through the small filter holes and transported to the mixing and brewing device 6. At the same time, the relatively small amount of powder particles after grinding is relatively large, and basically moves along the middle part of the wall of the grinding cup 3. This part of the powder particles passes through the filter screen 7 After being filtered in the large filter hole in the middle, it is transported to the mixing and brewing device 6, while the coffee particles with relatively large particles that are not fully ground move along the lower cup wall of the grinding cup 3 due to their relatively heavy weight. Smaller, so this part of the larger particles is prevented from entering the mixing and brewing device 6 through the filter screen 7, and then the heated hot water is pumped into the mixing and filling device to mix and fill with the ground coffee powder, and the filled and brewed The coffee is filtered from the filter cup 62 in the mixing and brewing device 6 and then pressed out from the spout 61 to brew strong-flavored and delicious coffee. Since the upper and lower parts of the filter screen 7 are provided with smaller filter holes and the middle part of the filter screen 7 is provided with a larger filter hole, the extremely fine coffee powder after grinding passes through the small filter holes on the upper part, and the larger amount Smaller coffee powder particles pass through the larger filter holes in the middle of the filter screen 7, and larger coffee powder particles cannot pass through the small-size filter holes in the lower part of the filter screen 7. Afterwards, the powder particles delivered to the mixing and brewing device 6 are relatively small, and the amount of coffee powder that is filtered by the filter screen 7 and delivered to the mixing and brewing device 6 can be ensured. The final brewed coffee drink does not affect the mouthfeel, has a strong taste, Sweet and delicious. In addition, a more preferred scheme is to set three rows of small filter holes on the top and bottom of the filter screen 7 respectively, and three rows of large filter holes are also set in the middle of the filter screen 7 . This ensures a relatively high powder extraction rate.

The coffee cup of the present utility model, in conjunction with accompanying drawing Fig. 3, the concrete structure of filter screen 7 can be that the filter hole on the filter screen 7 is arranged in a staggered manner, can be the filter hole that is arranged in the middle and adjacent two filter hole circle centers extend vertically. The direction of the line is the center position of the upper row and the lower row of filter holes, and other forms of staggered arrangement are also possible, as long as the upper row and the lower row are staggered. Such staggered filter holes can effectively improve the yield of coffee powder. After testing, the powder output rate of the filter net 7 after two adjacent rows of filter holes are staggered is increased by 10% compared with that of the non-staggered arrangement structure. Further, the height of the upper and lower parts of the filter net 7 is 1/4-2/5 of the overall height of the filter net 7, and the height of the middle part is 1/5-1/2 of the overall height of the filter net 7. The most preferred scheme is 1/3 that the small filter holes occupy the top and bottom heights of the filter screen 7 and are 1/3 of the height of the overall filter screen 7, and the large filter holes occupy the middle part of the filter screen 7. The height is 1/3 of the overall filter screen 7 height, so that Ensure the combination of powder extraction rate and filtration effect to achieve the best effect. It can also be that the diameter of the small filter holes on the top and bottom of the filter screen 7 is 2.2-2.8mm, the diameter of the large filter holes in the middle part of the filter screen 7 is 2.8mm-3.4mm, and the distance between the centers of the two holes in the horizontal direction of each row of filter holes The diameter of the small filter hole is 4-6mm. When the diameter of the small filter hole is selected as 2.8mm, the diameter of the large filter hole is generally selected as a size between 3.2mm and 3.4mm. A further preferred solution is that the diameter of the small filter holes in the upper and lower parts of the filter screen 7 is 2.6mm, and the diameter of the large filter hole in the middle of the filter screen 7 is 3mm. After testing, use the filter screen 7 of this size to filter the ground coffee. Brewed coffee tastes the best. Cleaning holes 71 can also be set at the lower edge of the filter screen 7. The effect of the cleaning holes 71 is that after the coffee pot is used, the grinding cup 3 is disassembled, and the water can be discharged from the cleaning holes 71 during flushing, which is more convenient, and because It is positioned at filter screen 7 lower edges, so water can be drained clean.

For the coffee pot of the present utility model, please refer to Figure 5 to Figure 12 of the accompanying drawings, a switch is provided in the main control circuit. The switch that controls the opening and closing of the main control circuit can be a first switch 11 and a second switch 12 connected in series, and a first touch piece 321 is extended on the cup cover 32, and the first touch piece 321 is in phase with the first switch 11. Cooperate, when the cup cover 32 is in the open state, the first actuating member 321 is in the separated state from the first switch 11, the first switch 11 is in the closed state, and when the cup cover 32 is in the closed state, the first actuating member 321 touches the first Switch 11 further makes first switch 11 be in on state, is provided with ejector rod 22 and second touch piece 21 on the inner wall of pot lid 2, and second touch piece 21 cooperates with second switch 12, when kettle lid 2 is in When in the open state, the ejector rod 22 is in a separated state from the second contact member 21, and the second switch 12 is in an off state. When the pot lid 2 is in a closed state, the ejector rod 22 touches the second contact member 21, and the second contact member 21 Touch the second switch 12 to be in the ON state. Since the first switch 11 and the second switch 12 are connected in series, only when the cup lid 32 is closed and the pot lid 2 is also closed, the first switch 11 is closed. Only when the second switches 12 are in the on state can it be ensured that the main control circuit is turned on, and then the motor 4 and the heater 8 etc. start to operate. The switch can also be another structure, that is, the switch includes a microswitch 96 and a touch switch 13 connected in series, at least two tongues 91 are formed on the side wall of the cup cover 32, and the bottom of the grinding cup 3 is provided with a mounting seat 93, At least two slots 92 are formed on the mounting base 93. After the cup cover 32 is rotated, the tongues 91 can be snapped into the slots 92. One of the slots 92 is provided with a micro switch 96, and the tongues 91 are snapped into the slots. 92 inner touch microswitch 96 is in the ON state, simultaneously on the top of kettle body 1 is provided with touch switch 13, and the third touch member 95 is arranged on the inner wall of kettle lid 2, when kettle body 1 and kettle lid 2 lids are closed , the third touch piece 95 touches the touch switch 13 so that it is in the on state, when the kettle body 1 is separated from the kettle lid 2, the touch switch 13 is separated from the third touch piece 95, and the touch switch 13 is in the off state. The above two structures can ensure that the pot lid 2 and the cup lid 32 are closed during operation, and the circuit will not be connected when the coffee beans are placed on the lid and the cup body 31, and then the motor 4 and the grinding knife 33 will be operated, and the coffee beans will be thrown out at a high speed The situation that the grinding cup 3 injures people occurs, and at the same time, the lid 2 is closed, but the circuit is connected after the lid is closed, and the heater 8 heats the water, and the steam overflows from the seams around the lid 2 to injure people. occur.

Certainly, the above-mentioned embodiments are only for illustrating the utility model, and are not intended to limit the utility model. Those skilled in the art can also make various equivalent deformations and transformations without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions belong to the protection scope of the present utility model.

Claims (10)

1. coffee pot, comprise kettle body (1) and cover pot lid (2) on described kettle body (1), be provided with dismountable grinding cup (3) in the described kettle body (1), grind the motor (4) that cutter (33) matches in the cup (3) with described the grinding, water tank (5), grind the mixing pouring and boiling device (6) that cup (3) and water tank (5) are connected with described respectively, be arranged on the faucet (61) of described mixing pouring and boiling device (6) below and the heater (8) that the water in the water tank (5) is heated, described heater (8) and described motor (4) are connected with governor circuit in the described kettle body (1), described grinding cup (3) comprises cup (31), cover bowl cover (32) and screen pack (7) on described cup (31), described screen pack (7) is positioned at described grinding cup (7) and is communicated with the place with described mixing pouring and boiling device (6), it is characterized in that: be arranged with the filtering holes of a plurality of different sizes on the described screen pack (7), described screen pack middle part filtering holes size is greater than upper and lower filtering holes size.

2. coffee pot according to claim 1 is characterized in that: the last adjacent two row's filtering holes of described screen pack (7) are staggered.

3. coffee pot according to claim 1 is characterized in that: described screen pack (7) upper and lower height is described integral filter net (a 7) height 1/4～2/5, and the middle part highly is 1/5～1/2 of an integral filter net (7).

4. coffee pot according to claim 3 is characterized in that: described screen pack (7) upper, middle and lower height is 1/3 of described integral filter net (7) height.

5. according to arbitrary described coffee pot in the claim 1 to 4, it is characterized in that: the diameter of the little filtering holes in described screen pack (7) upper and lower is 2.2～2.8mm, the diameter of described screen pack (7) middle part serious offense filter opening is 2.8mm～3.4mm, and the distance between the center, described filtering holes horizontal direction two hole is 4-6mm.

6. according to the coffee pot described in the claim 5, it is characterized in that: described screen pack (7) upper and lower small offence filter opening diameter is 2.6mm, and the diameter of described screen pack (7) middle part serious offense filter opening is 3mm.

7. according to arbitrary described coffee pot in the claim 1 to 4, it is characterized in that: described screen pack (7) upper and lower is respectively equipped with the little filtering holes of three rows, and described screen pack (7) middle part is provided with three row's serious offense filter openings.

8. according to arbitrary described coffee pot in the claim 1 to 4, it is characterized in that: its lower edge of described screen pack (7) is provided with lancing door (71).

9. according to arbitrary described coffee pot in the claim 1 to 4, it is characterized in that: the switch that has control circuit to switch on and off in the governor circuit, described switch comprises first switch (11) and the second switch (12) of polyphone, on described bowl cover (32), extend one first touch part (21), described first touch part (321) matches with described first switch (11), second touch part (21) that described pot lid (2) inwall is provided with push rod (22) and matches with described second switch (12), described push rod (22) touches described second touch part (21) after described pot lid (2) closes.

10. according to arbitrary described coffee pot in the claim 1 to 4, it is characterized in that: the switch that has control circuit to switch on and off in the governor circuit, described switch comprises the microswitch (96) and the touch switch (13) of polyphone, be formed with at least two tongue pieces (91) on the sidewall of described bowl cover (32), mount pad (93) is established in described grinding cup (3) bottom, be formed with at least two draw-in grooves (92) on the described mount pad (93), described tongue piece (91) snaps in the described draw-in groove (92), wherein be provided with microswitch (96) in the draw-in groove (92), described tongue piece (91) snaps in and touches described microswitch (96) in the draw-in groove (92), described kettle body (1) top is provided with touch switch (13), described pot lid (2) inwall is provided with the 3rd touch part (95), and described the 3rd touch part (95) is controlled the unlatching of described touch switch (13) or closed.

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