CN111887721B - Multifunctional coffee machine - Google Patents

Abstract

The invention discloses a multifunctional coffee machine, which comprises a shell and a brewing head arranged on the shell, wherein the brewing head comprises a water inlet block and a handle control mechanism and is provided with a coffee brewing device in a replaceable way; the coffee brewing device comprises a bowl seat assembly and a bowl cover assembly, wherein the bowl seat assembly comprises a bowl seat, the bottom of the bowl seat is provided with a water outlet, the bowl cover assembly comprises a bowl cover, and the top wall of the bowl cover is provided with a water inlet; the water inlet block is provided with a water inlet head capable of being inserted into the water inlet, the water inlet head is provided with a sealing groove, a V-shaped sealing ring is installed in the sealing groove, and the opening of the V-shaped sealing ring faces downwards. After the water inlet head is inserted into the water inlet, the sealing lip of the V-shaped sealing ring is outwards opened to form reliable sealing, the opening of the V-shaped sealing ring can be extruded when the water inlet head is upwards pulled out, the V-shaped sealing ring is contracted, and the V-shaped sealing ring can be easily separated from the water inlet. Therefore, the design of the V-shaped sealing ring can reliably ensure sealing, and is convenient for the separation and combination of the water inlet head and the water inlet.

Description

A multifunctional coffee machine

technical field

The invention belongs to the technical field of coffee machines.

Background technique

At present, in order to facilitate portability and meet the coffee drinking needs when going out, a battery-powered coffee machine has appeared. Since the battery is powered, a DC water pump is used to pump the hot water heated in the boiler into the coffee brewing device.

Wherein, the coffee brewing device includes a bowl seat assembly and a bowl cover assembly, the bowl seat assembly includes a bowl seat, the bottom of the bowl seat is provided with a water outlet, the water outlet is installed with a one-way valve, the bowl cover assembly includes a bowl cover, and the top wall of the bowl cover With water inlet. The water inlet channel in the water inlet block is communicated with the water inlet, so that the hot water heated in the boiler is sent to the coffee brewing device through the water inlet.

The water inlet block is generally controlled manually by the handle control mechanism. The water inlet of the water inlet block needs to be sealed with the inner wall of the water inlet. Although the conventional sealing ring can also be sealed, in order to ensure reliable sealing during brewing, the conventional sealing ring needs to be relatively tight. However, after the brewing is completed and the pressure is released, the handle control mechanism is used to operate, and it is not easy to separate from the water inlet.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a portable DC power supply pump-type coffee machine, and to provide a solution for a series of problems that the DC pump cannot provide such as the continuous high pressure of the AC water pump, which can not only ensure the brewing time The reliable sealing of the water inlet head and the inner wall of the water inlet is convenient for manual operation to realize separation after the brewing is completed.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

A multifunctional coffee machine, comprising a casing and a brewing head, a boiler, a battery and a DC water pump mounted on the casing, the brewing head comprising a head frame, a drawer slideway arranged on the head frame, and a water inlet connected to the head frame A block and a handle control mechanism for driving the upward and downward pressing of the water inlet block, the drawer slideway is connected with a drawer, and a coffee brewing device can be replaced in the drawer, and the coffee brewing device is a coffee powder brewing device, a coffee pod Brewing device or coffee capsule brewing device;

The coffee brewing device includes a bowl seat assembly and a bowl cover assembly, the bowl seat assembly includes a bowl seat, the bottom of the bowl seat is provided with a water outlet, the water outlet is installed with a one-way valve, and the bowl cover assembly includes a bowl cover, the top wall of the bowl cover is provided with a water inlet;

The battery supplies power to the boiler and the DC water pump, the boiler heats brewing water, and the DC water pump transports the hot water pumped from the boiler to the coffee brewing device through the water inlet pipeline, and the coffee brewing device is used for coffee brewing;

The water inlet block is provided with a water inlet channel, one end of the water inlet channel is provided with a water inlet joint, the water inlet joint is connected with the water inlet pipeline, and the other end of the water inlet channel is provided with a water inlet that can be inserted into the water inlet. The water inlet head is provided with a sealing groove, a V-shaped sealing ring is installed in the sealing groove, and the mouth of the V-shaped sealing ring faces downward.

Preferably, the handle control mechanism includes a handle and a connecting rod, the handle includes a horizontal portion and a vertical lower portion connected to the rear end of the horizontal portion, in a state where the handle is depressed, the horizontal portion is in a horizontal state, and the vertical lower portion is The upper part is connected with the rotating shaft, the lower part is hinged with one end of the connecting rod, and the other end of the connecting rod is connected with the water inlet block. The block is provided with a sliding portion, and the sliding portion is slidably connected with the chute.

Preferably, the boiler is provided with a thermostat for controlling the heating temperature of the hot water. When the water in the boiler is heated to a required temperature, the thermostat controls the boiler to automatically stop heating, and the boiler is provided with an exhaust gas for exhausting exhaust gas during heating. holes and water supply holes connected to the water pump.

Preferably, a pressure relief valve is connected to the water inlet pipeline between the direct current water pump and the coffee brewing device, and the pressure relief valve is controlled to be opened and closed by a brewing knob.

Preferably, a T-type joint is also included, and the three interfaces of the T-type joint are respectively connected to the water outlet of the DC water pump, the pressure relief valve and the water inlet of the coffee brewing device.

Preferably, a water receiving box is provided below the brewing head, and also includes a three-way joint, the three interfaces of the three-way joint are respectively connected to the exhaust hole, the pressure relief valve and the drain pipe, and the three-way joint collects the heating generated by the boiler. The gas and the waste water discharged by the pressure relief valve are discharged into the water receiving box through the drain pipe.

Preferably, the upper part of the bowl seat is provided with an outer sealing cylindrical surface, the inner peripheral wall of the bowl cover is provided with a sealing groove, and a V-shaped sealing ring that forms a sealing fit with the outer sealing cylindrical surface is installed in the sealing groove. The mouth of the V-ring faces upwards.

Preferably, a V-shaped sealing ring pressing ring is threadedly connected to the mouth of the inner peripheral wall of the bowl cover, an upper step surface is provided on the upper part of the inner peripheral wall of the bowl cover, and the upper step surface is connected to the upper end surface of the V-shaped sealing ring pressing ring. The upper and lower side walls of the sealing groove are formed.

Preferably, the inner bottom wall of the bowl seat is installed with a bowl seat filter screen, the bowl seat filter screen is installed on the filter screen support, the filter screen support is installed on the filter screen sealing ring, and the filter screen sealing ring is connected to the bowl The edge of the inner bottom wall of the seat and the edge of the filter are sealed to prevent coffee leakage.

Preferably, the one-way valve includes a valve body formed between the filter screen support and the bottom of the bowl seat, a valve cover installed on the bottom of the bowl seat, a block and a spring arranged in the valve cavity inside the valve body, and the filter screen A valve port is provided on the bracket, the blocking block is matched with the valve port, and the spring is installed between the blocking block and the valve cover.

The technical scheme adopted in the present invention has the following beneficial effects:

1. The handle control mechanism is used to drive the water inlet block to pull up and down. After the water inlet head is inserted into the water inlet, the sealing lip of the V-shaped sealing ring opens outward to form a reliable seal. When the water inlet head is pulled up, it can be squeezed. Press the opening of the V-shaped seal to shrink it, and the V-shaped seal can be easily disengaged from the water inlet. Therefore, the design of the V-shaped sealing ring can reliably ensure the sealing, and facilitate the separation and closing of the water inlet and the water inlet.

2. A pressure relief valve is connected to the water inlet pipeline between the DC water pump and the coffee brewing device to discharge the high-pressure gas existing in the pipeline. The pressure relief valve is controlled by the brewing knob, which controls its opening and closing. The brewing knob is in the closed position, the DC water pump is connected to the coffee brewing device, the machine starts to brew coffee, the brewing knob is in the closed position, the machine stops brewing coffee, and the pressure relief valve is opened to release the pressure. pressure. Conveniently open the handle safely after brewing to remove coffee residue.

3. A water receiving box is installed on the base of the chassis under the brewing head, which is used to receive the residual coffee that drips during the brewing of coffee. The three ports of the T-joint are respectively connected to the DC water pump, the pressure relief valve and the coffee brewing device. The three interfaces of the tee joint are respectively connected to the exhaust port, pressure relief valve and drain pipe of the boiler, collecting the gas generated by the boiler heating and the waste water released by the pressure relief valve, and then discharging it into the water receiving box through the drain pipe.

4. After the bowl lid and the bowl seat are closed, the sealing lip of the V-shaped sealing ring opens outward, and interacts with the outer sealing cylindrical surface of the bowl seat to form a reliable seal. After the brewing is completed, the pressure is released. The sealing cylindrical surface can squeeze the opening of the V-seal to shrink it, and the V-seal can be easily disengaged from the bowl seat. Therefore, the design of the V-shaped sealing ring can reliably ensure the sealing, and facilitate the opening and closing of the bowl cover and the bowl seat.

5. The bowl cover and the V-shaped sealing ring press ring are fixed by threaded connection to form an annular sealing groove to place the V-shaped sealing ring. The split design of the V-shaped sealing ring press ring simplifies and facilitates the complex processing technology of the sealing groove , eliminating the need for a mold or turning process to process the sealing groove.

6. The bowl seat filter and filter screen seal are installed on the bowl seat. The bowl seat filter prevents the coffee powder from being filtered out, and the filter seal ring prevents coffee leakage.

7. The bottom of the bowl seat is provided with a water outlet, and an integrated one-way valve is installed, so that the brewed coffee can flow out in one direction.

The specific technical solutions of the present invention and the beneficial effects thereof will be described in detail in the following specific embodiments in conjunction with the accompanying drawings.

Description of drawings

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

Fig. 1 is the front view of the coffee machine of the present invention;

Figure 2 is a side view of the coffee machine of the present invention;

Fig. 3 is the top view of the coffee machine of the present invention;

Fig. 4 is A-A sectional view in Fig. 1;

Fig. 5 is B-B sectional view in Fig. 3;

6 is a schematic structural diagram of a brewing head in a state where the handle is depressed;

FIG. 7 is a schematic structural diagram of the brewing head in the state where the handle is opened;

8 is a schematic diagram of the exploded structure of the brewing head, the drawer and the coffee brewing device when the handle is opened;

9 is a schematic structural diagram of the overall installation of the drawer on the brewing head after the coffee brewing device is put into the drawer when the brewing head is in the open state;

10 is a schematic structural diagram of the coffee brewing device after the coffee brewing device is put into the drawer and the drawer is installed on the brewing head as a whole and the handle is pressed down;

Figure 11 is a top view of the ground coffee brewing device;

Fig. 12 is C-C sectional view in Fig. 11;

13 is a schematic diagram of the exploded structure of a coffee powder brewing device;

Figure 14 is a top view of the pad brewing device;

Figure 15 is a D-D sectional view in Figure 14;

16 is a schematic diagram of the exploded structure of the coffee pad brewing device;

Figure 17 is a top view of a coffee hard shell capsule brewing device;

Fig. 18 is E-E sectional view in Fig. 17;

Fig. 19 is F-F sectional view in Fig. 17;

Figure 20 is a schematic diagram of the exploded structure of a coffee hard-shell capsule brewing device;

Figure 21 is a schematic structural diagram when a ring-pull mechanism is used to take out the waste capsule;

Figure 22 is a schematic structural diagram of the pull-down ring mechanism in the state where the capsule is not installed when the action of pulling out the waste capsule is performed;

Figure 23 is a top view of a coffee soft shell capsule brewing device;

Figure 24 is an H-H sectional view in Figure 23;

Figure 25 is a front view of a coffee soft shell capsule brewing device;

Figure 26 is a schematic diagram of the exploded structure of a coffee soft-shell capsule brewing device;

Figure 27 is a schematic view of the bowl seat structure used in the coffee soft-shell capsule brewing device;

Figure 28 is a schematic structural diagram of a pick;

Figure 29 is a schematic diagram of the structure of the bowl cover used by the coffee soft-shell capsule brewing device;

Figure 30 is a bottom view of the coffee soft shell capsule brewing device;

Fig. 31 is the K-K sectional view in Fig. 30 under the closed state of the bowl lid;

Figure 32 is a K-K sectional view in Figure 30 with the bowl lid open;

In the picture:

1-chassis; 11-battery holder; 12-battery; 13-water cover; 14-water box; 15-brewing knob; 16-heating button;

2-brewing head; 21-head rack; 211-drawer slide; 212-chute; 22-water inlet block; 221-water inlet joint; 222-water inlet V-shaped sealing ring; 23-connecting rod; 24-handle ;25-drawer;251-drip port;

3-Boiler water supply device; 31-Boiler; 311-Boiler cover; 312-Water supply hole; 313-Exhaust hole; 32-DC water pump; 33-T-joint; 34-Tee joint; 35-Pressure relief valve;

4- coffee brewing device; 41- bowl seat; 410- coffee hard shell capsule; 411- outer sealing cylindrical surface; 412- outer flange; 413- outer cylindrical concave and convex surface; 414- bowl seat bottom; 415- bowl seat sealing ring ;416-Bowl seat sealing ring pressure ring;4161-Storage groove;4162-Notch;4163-Notch;417-Capsule compartment installation groove; 418-locking table groove; 4181-limiting wall; 4182-buckle cover mounting surface; 4183-locking cover; 42-bowl cover; 421-water inlet; 422-outer edge; 423-bowl cover V Type sealing ring; 424-V-type sealing ring pressure ring; 425-Sealing gasket; 4251-Water outlet; 426-Sealing pressure plate; 427-Front puncture; 428-Front puncture sealing ring; -blocking block; 432-check valve spring; 433-bonnet; 44-bowl seat filter assembly; 441-bowl seat filter; 442-filter seal ring; 443-filter bracket; 45-coffee powder filter assembly ;451-Bowl cover filter; 452-Anti-leakage seal; 453-Filter plate; 46-Ring mechanism; 461-Ring; 4611-Crowbar; Separation block; 47-capsule compartment; 470-coffee soft-shell capsule; 4701-coffee soft-shell capsule mouth brim; 48-pick; 480-pick shaft; 481-pick shaft hole; 482-toggle part; 483-bezel; 49-lock; 491-angle; 492-touch surface; 493-return spring; 4201-coffee leakage hole; 4202-lock hole; 4203-rotating shaft column; 4204-support column; 4205-dial Plate shaft mounting hole; 4206 - bowl cover shaft hole; 4207 - front puncture mounting boss.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It can be understood by those skilled in the art that the features in the following embodiments and implementations can be combined with each other without conflict.

Referring to FIGS. 1 to 32 , the coffee machine includes a casing 1 , a brewing head 2 mounted on the casing 1 , and a boiler water supply device 3 .

Referring to FIGS. 4 to 10 , the brewing head 2 includes a head frame 21 , a drawer slide 211 provided on the head frame, a water inlet block 22 connected to the head frame 21 , and a handle for driving the water inlet block 22 to pull up and down. Control mechanism, the drawer slideway 211 is connected with a drawer 25, and various types of coffee brewing devices 4 on the market can be replaced in the drawer 25, such as the following coffee powder brewing device, coffee bag brewing device, Coffee hard-shell capsule brewing device, coffee soft-shell capsule brewing device, etc.

Wherein, the coffee brewing device 4 is provided with a water inlet 421 . The handle control mechanism includes a handle 24 and a connecting rod 23. The handle 24 includes a horizontal portion and a vertical lower portion connected to the rear end of the horizontal portion. When the handle 24 is pressed down, the horizontal portion is in a horizontal state, and the vertical lower portion is in a horizontal state. The upper part is connected with the rotating shaft, the lower part is hinged with one end of the connecting rod 23, the other end of the connecting rod 23 is connected with the water inlet block 22, the head frame 21 is provided with side plates on the left and right sides of the water inlet head, and the side plates are provided with chute 212 , the water inlet block 22 is provided with a sliding portion, and the sliding portion is slidably connected with the chute 212 . The water inlet block 22 is provided with a water inlet channel, one end of the water inlet channel is provided with a water inlet joint 221, the water inlet joint 221 is connected with the water inlet pipeline, and the other end of the water inlet channel is provided with a slidable Insert the water inlet head of the water inlet 421.

When the coffee brewing device 4 is in the brewing state, in order to achieve reliable sealing between the water inlet head and the water inlet 421 . The water inlet head is provided with a sealing groove, a water inlet V-shaped sealing ring 222 is installed in the sealing groove, and the mouth of the water inlet V-shaped sealing ring 222 faces downward.

When the handle 24 is lifted up, the connecting rod 23 is driven to pull up the water inlet block 22 to move upward in the chute 212 of the left and right side panels, and separate from the water inlet 421 of the coffee brewing device 4 in the drawer 25 . When the handle 24 is pressed down, the connecting rod 23 is driven to push the water inlet block 22 to move downward in the chute 212 of the left and right side panels, connecting and pressing the water inlet 421 of the coffee brewing device 4 in the drawer 25. The water inlet V-shaped sealing ring 222 is slidably connected with the water inlet 421 of the coffee brewing device and is reliably sealed. The advantage of using the V-shaped sealing ring 222 for the water inlet is that the sealing can be reliably ensured during brewing, and after the brewing is completed, it can be easily separated from the water inlet.

The boiler water supply device 3 includes a boiler 31 and a DC water pump 32. The boiler 31 heats brewing water. After the boiler 31 is heated, the DC water pump 32 delivers the hot water pumped from the boiler 31 to the The coffee brewing device 4 performs coffee brewing.

The front of the casing 1 is provided with a heating button 16 for controlling the heating of the boiler. The back of the casing 1 is provided with a battery holder 11 , a battery 12 is mounted on the battery holder 11 , a metal power connection piece is fixed on the battery holder 11 , and the terminals of the battery 12 are electrically connected with the metal power supply connection piece. The battery 12 supplies power to the boiler 31 and the DC water pump 32 .

The boiler 31 is provided with a boiler cover 311, and the casing 1 is provided with a water filling cover 13 above the boiler cover 311, open the water filling cover 13, add water to the boiler, and cover the water filling cover 13 again after adding water. The boiler 31 is provided with a thermostat for controlling the heating temperature. The boiler 31 provides power through the battery 12 to heat the water in the boiler to a required temperature, and then automatically stops heating. The boiler 31 is provided with an exhaust hole 313 for exhausting gas during heating and a water supply hole 312 for pumping water by a water pump.

A pressure relief valve 35 is connected to the water inlet pipeline between the direct current water pump 32 and the coffee brewing device 4 for discharging the high-pressure gas existing in the pipeline. The pressure relief valve 35 is controlled by the brewing knob 15 to control its opening and closing, the brewing knob 15 is in the closed position, the DC water pump 32 is communicated with the coffee brewing device 4, the machine starts to brew coffee, the brewing knob 15 is in the closed position, and the machine stops brewing coffee, and open pressure relief valve 35 to relieve pressure. Conveniently after brewing, the handle 24 can be safely opened to remove coffee residues.

The boiler water supply device 3 further includes a T-joint 33 and a three-way joint 34 . In addition, a water receiving box 14 is installed on the base of the cabinet below the brewing head 2 for receiving residual coffee dripped during brewing coffee. The three ports of the T-joint 33 are respectively connected to the DC water pump 32 , the pressure relief valve 35 and the coffee brewing device 4 . The three interfaces of the three-way joint 34 are respectively connected to the exhaust port 313 of the boiler, the pressure relief valve 35 and the drain pipe, and the gas generated by the heating of the boiler 31 and the waste water discharged by the pressure relief valve 35 are collected, and discharged into the water receiving box 14 through the drain pipe. .

The coffee brewed by the coffee brewing device 4 falls down through the drip port 251 provided at the bottom of the drawer 25 .

Those skilled in the art can understand that other structures and working principles of the coffee machine that have not been described can refer to the prior art, which will not be repeated here.

Example 1

11 to 13 , the ground coffee brewing device includes a bowl seat assembly and a bowl cover assembly, wherein:

The bowl seat assembly includes a bowl seat 41, the bottom of the bowl seat 41 is provided with a water outlet, the water outlet is installed with a one-way valve 43, and the upper part of the bowl seat 41 is provided with an outer sealing cylindrical surface 411;

The bowl cover assembly includes a bowl cover 42, the top of the bowl cover 42 is provided with a water inlet 421, the inner peripheral wall of the bowl cover 42 is provided with a sealing groove, and a sealing groove is installed in the sealing groove and formed with the outer sealing cylindrical surface 411. The V-shaped sealing ring 423 of the bowl cover is sealed and matched, and the mouth of the V-shaped sealing ring 423 of the bowl cover faces upward.

Due to the manual closing and bowl cover 42, although the conventional sealing ring can also be sealed, in order to ensure reliable sealing during brewing, the conventional sealing ring needs to adopt a relatively tight fit, but after the brewing is completed and the pressure is released, it is It is not easy to separate from the bowl holder. Here, the function of the V-shaped sealing ring 423 of the bowl cover is to interact with the outer sealing cylindrical surface 411 on the bowl seat to form a seal. After the brewing is completed, the pressure is released, and the V-shaped sealing ring 423 of the bowl cover can easily be separated from the bowl seat. Therefore, the design of the V-shaped sealing ring 423 of the bowl cover can reliably ensure the sealing and facilitate the separation and closing of the bowl cover and the bowl base.

In order to facilitate processing and assembly, a V-shaped sealing ring pressing ring 424 is threadedly connected to the mouth of the inner peripheral wall of the bowl cover 42, and an upper step surface is provided on the upper part of the inner peripheral wall of the bowl cover 42, and the upper step surface is connected to the V-shaped sealing ring. The upper end surface of the sealing ring pressing ring 424 forms the upper and lower side walls of the sealing groove. The separable design of the V-shaped sealing ring simplifies and facilitates the complex processing technology of the sealing groove, and saves the need for mold or turning technology to process the sealing groove.

In addition, the inner top wall of the bowl cover 42 is provided with a coffee powder filter assembly 45. The coffee powder filter assembly 45 includes a bowl cover filter screen 451. After the hot water enters from the water inlet 421, it is evenly sprayed through the bowl cover filter screen 451. On the ground coffee, and through the lid filter 451 to prevent the ground coffee from flowing back. The bowl cover filter 451 is fixed on the inner top wall of the bowl cover by the filter screen press plate 453. Between the filter screen press plate 453 and the edge of the bowl cover filter screen 451, there is provided to prevent hot water from leaking along the edge of the bowl cover filter screen 451. Outgoing leak-proof seal 452. The bowl cover filter 451 is provided with a flange on the periphery, and the leak-proof sealing ring 452 is an O-ring, which is located on the inner side of the flange. The filter screen pressing plate 453 is annular, and is fixed on the inner top wall of the bowl cover with screws, and the bowl cover filter screen 451 and the anti-leakage sealing ring 452 are pressed and fixed.

Further, the inner bottom wall of the bowl base 41 is provided with a bowl base filter screen assembly 44 . The bowl seat filter screen assembly 44 includes a bowl seat filter screen 441, the bowl seat filter screen 441 is installed on the filter screen bracket 443, the filter screen bracket 443 is installed on the filter screen sealing ring 442, and the bowl seat filter screen 441 prevents the coffee powder from being filtered. Out, the filter screen sealing ring 442 is sealed with the edge of the inner bottom wall of the bowl base and the edge of the bowl base filter screen 441 to prevent coffee leakage.

Referring to the existing one-way valve structure, the one-way valve 43 includes a valve body formed between the filter screen support 443 and the bottom of the bowl seat 41, a valve cover 433 installed at the bottom of the bowl seat 41, and a valve provided inside the valve body. The blocking block 431 and the one-way valve spring 432 of the cavity, the filter support 443 is provided with a valve port, the blocking block 431 is matched with the valve port, and the one-way valve spring 432 is installed on the blocking block 431 and the valve cover 433 between.

The blocking block 431 is made of silica gel. In order to integrate the valve body on the filter screen support 443 and the bowl seat 41, a groove is provided in the center of the bottom 414 of the bowl seat, and a convex portion is provided at the bottom of the filter screen support 443, the convex portion is embedded in the groove, the The convex portion is provided with an upper valve cavity with an opening at the bottom, the valve port is located above the upper valve cavity and communicates with the upper valve cavity, the center of the bottom 414 of the bowl seat is provided with a downwardly protruding cylindrical portion, and the inner side of the cylindrical portion forms an upper side The lower valve cavity is opened, the lower valve cavity and the upper valve cavity form a valve cavity, and a valve body sealing ring is arranged between the mouth edges of the lower valve cavity and the upper valve cavity. The convex part is provided with a threaded hole, the bottom wall of the cylindrical part is provided with a through hole, the screw passes through the through hole and is connected with the threaded hole, the convex part surrounds the upper valve cavity with a sealing step, and the valve body sealing ring is positioned at the sealing surface. steps.

The bowl seat 41 is a cylindrical structure as a whole, and an outer flange 412 is arranged in the middle of the outer cylinder of the cylinder. After being put into the drawer, it can cooperate with the inner flange in the drawer to locate the coffee brewing device 4 . The upper part of the outer cylinder of the cylinder is the outer sealing cylindrical surface 411 above the outer flange 412, and the lower part is the outer cylindrical concave-convex surface 413, which is easy to grasp. At the same time, an outer protruding edge 422 is also provided on the periphery of the upper portion of the bowl cover, which is matched with the stepped surface of the mouth portion of the periphery of the drawer mouth portion, and is convenient for grabbing and taking out.

Example two,

14 to 16 , the difference from the first embodiment is that the coffee brewing device is a coffee pad brewing device. The coffee pad brewing device is similar in structure to the ground coffee brewing device, and the same structure is not repeated here. The difference is that the inner top wall of the bowl cover does not need to be provided with a coffee powder filter assembly, but a sealing gasket 425 is arranged on the inner top wall of the bowl cover. Inner top wall. The center of the sealant pad 425 is provided with a water outlet hole 4251 that communicates with the water inlet, and the hot water passes through the water outlet hole 4251 of the sealant pad and soaks into the coffee in the coffee pod.

Embodiment 3

Referring to FIG. 17 to FIG. 22 , the same structure as that of the ground coffee/packet brewing device will not be repeated here. The difference from the first and second embodiments is that the coffee brewing device is a coffee hard shell capsule brewing device. Wherein, the bowl seat 41 is provided with an accommodating groove for placing the coffee hard shell capsules 410 .

In order to facilitate unpacking, that is, take out the hard-shelled coffee capsule 410 after brewing, the mouth of the bowl seat 41 is provided with a pull-ring mechanism 46 .

The pull ring mechanism 46 includes a pull ring 461 hinged to the mouth of the bowl seat, and the pull ring 461 is provided with a brim of the mouth of the coffee hard shell capsule 410 when rotated upward to pull the coffee hard shell capsule 410 up from the accommodating groove The crowbar 4611.

In order to form a seal between the coffee hard shell capsule 410 and the periphery of the inner bottom wall of the bowl seat 41, a bowl seat sealing ring 415 is installed on the inner bottom wall periphery of the bowl seat 41, and the bowl seat sealing ring 415 is formed by the bowl seat sealing ring The pressing ring 416 is pressed so as to form the accommodating groove together with the inner bottom wall of the bowl seat. The inner bottom wall peripheral edge of the bowl seat 41 is lifted upward to form a sealing step surface, and the bowl seat sealing ring 416 is installed on the sealing step surface.

Further, the inner peripheral wall of the bowl seat 41 is provided with a rising step portion that is lifted up step by step from the bottom above the sealing step surface, and the outer peripheral wall of the bowl seat sealing ring pressing ring 416 is provided with a rising step portion. Descending step cylindrical surface.

Specifically, the pull ring 461 is hinged to the top of the bowl seat sealing ring pressing ring 416 , and the bowl seat sealing ring pressing ring 416 is provided with a receiving groove 4161 in which the pulling ring 461 is stored in the storage state. The pull ring 461 has an opening, and the ends of the two ends of the opening of the pull ring are bent to form a crowbar 4611 . There is a gap 4163 on the side wall of the mouth of the bowl seat sealing ring pressing ring 416, and a pull ring pressing plate 462 is installed at the gap 4163, and the two ends of the opening of the pull ring are provided with inclined sections. The two sides of the ring-pulling plate 462 are provided with passage grooves 4621 for the inclined section to pass through. The pull-ring pressing plate 462 is provided with a partition block 4622 for separating the two crowbars 4611 . The inner side wall of the receiving groove 4161 is provided with a notch 4162 which is convenient for fingers to act on the pull ring 461 to pull the pull ring out of the receiving groove 4161 .

Embodiment 4

Referring to FIGS. 23 to 32 , the difference from Embodiments 1 to 3 is that the coffee brewing device is a coffee soft-shell capsule brewing device.

The bowl seat 41 is provided with a capsule compartment installation slot 417, a capsule compartment 47 is installed in the capsule compartment installation slot 417, the upper part of the capsule compartment 47 is open, and the capsule compartment 47 is used to put the coffee soft shell capsule 470, The mouth brim 4701 protrudes from the outer rim of the mouth of the capsule compartment.

The bowl cover 42 and the bowl base 41 are hinged, and in the brewing state, the bowl cover 42 and the bowl base 41 need to be locked tightly. Between the bowl cover 42 and the bowl base 41 is a lock catch group that locks the two together in the brewing state, the lock catch group includes a lock hole 4202 provided on the bowl cover and a Latch 49.

The outer surface of the mouth of the bowl seat 41 is provided with a locking table groove 418, the left and right sides of the groove of the locking table groove 418 are provided with concave buckle cover mounting surfaces 4182, and the buckle cover mounting surfaces 4182 are fixed with A lock cover 4183, a lock chute is formed between the lock cover 4183 and the lock table groove 418, the lock 49 includes a lock seat and a lock angle 491 protruding from the lock seat, and the lock angle 491 has Slope, the buckle angle 491 is used to buckle into the lock hole 4202, the left and right sides of the lock seat are matched with the lock slot, and the front side of the lock table slot 418 is provided with a limit wall 4181, which is connected with the lock The bottom of the lock seat forms a limit fit, the lock seat is provided with a touch surface 492 that can protrude from the front side wall of the lock table slot 418 , and the rear of the lock seat is in contact with the rear side of the lock table groove 418 A return spring 493 is provided between the walls. Open the bowl cover 42: when the external force acts on the touch surface 492, the lock catch 49 is pushed inward, and the lock catch 49 slides along the thrust direction, so that the buckle angle 491 of the lock catch is disengaged from the lock hole 4202, and the bowl cover 42 can be opened by rotating; close; Bowl cover 42 : Rotate the bowl cover 42 , the lock hole 4202 presses the slope on the buckle angle 491 , pushes the lock buckle 49 to shrink inwardly, and then the buckle angle 491 of the lock buckle is buckled into the lock hole 4202 .

In order to facilitate unpacking, that is, take out the coffee soft-shell capsule 470 after the brewing is completed, the bowl cover 42 is connected with the cap brim 4701 of the mouth of the coffee soft-shell capsule when the bowl cover 42 is opened to remove the coffee soft-shell capsule 470 The pick mechanism that comes out of the capsule compartment.

The paddle mechanism includes a paddle 48, the paddle 48 is hinged to the paddle shaft 480 through the paddle shaft hole 481, the front end of the paddle is provided with a paddle 482, and the paddle shaft 480 is installed In the bowl cover 42, the bowl cover 42 is hinged to the bowl cover rotating shaft 4172, the bowl cover rotating shaft 4172 is installed on the bowl base 41, and the bowl cover rotating shaft 4172 is connected with the driving paddle 48 to rotate when the bowl cover is closed and finally make the bowl cover rotate. The toggle portion 482 is located at the torsion spring 4173 below the brim of the mouth of the coffee soft shell capsule.

The paddle 48 is provided with a baffle portion 483 on the rear side of the paddle shaft hole 481 , and the bowl cover 42 is provided with a baffle portion 483 that blocks when the bowl lid is opened, so that the toggle portion 483 acts on the coffee softener. The support post 4204 of the mouth brim 4701 of the shell capsule.

The mouth of the capsule compartment installation slot 417 protrudes from the surface of the mouth of the bowl seat, and the outer side of the mouth of the capsule compartment installation slot 417 is provided with two rotating shaft connecting posts 4171 side by side, and the bowl caps are correspondingly provided on the rotating shaft connecting posts 4171 The shaft installation hole, the side wall of the bowl cover 42 is provided with a gap, and two shaft columns 4203 are arranged side by side in the gap. The shaft columns 4203 are connected to the bowl cover shaft 4172, and the bowl cover shaft 4172 is installed with the bowl cover shaft hole connection. The support column 4204 is arranged between the two shaft columns 4203, and a through hole is formed between the support column 4204 and the roots of the two shaft columns 4203 and the gap for the baffle part 483 to enter. One end of the torsion spring 4173 is connected to the paddle. 48 works, and the other end works with the support column 4204. The shaft post 4203 is provided with a paddle shaft mounting hole 4205 and a bowl cover shaft hole 4206, the paddle shaft mounting hole 4205 is connected with the paddle shaft 480, and the bowl cover shaft hole 4206 is connected with the bowl cover shaft 4172.

Closing the bowl cover 42: After placing the coffee soft shell capsules 470 in the capsule compartment 47, rotate the bowl cover 42 to make the lock 49 snap into the lock hole 4202; the paddle mechanism on the bowl cover is under the reaction force of the torsion spring 4173 , the pull tab 48 slides down against the outer edge of the capsule and goes over the mouth brim 4701 of the soft-shell coffee capsule, and is finally under the mouth brim 4701 of the soft-shell capsule.

Open the bowl cover 42: After the coffee is brewed, push the touch surface 492 of the lock catch 49, the lock catch 49 retracts inwards, disengages from the lock hole 4202, and then opens the bowl cover 42; the blocking part 483 of the paddle mechanism on the bowl cover is supported by the column 4204 resists, at this time, the pull tab 48 is below the mouth brim 4701 of the coffee soft shell capsule, and is stuck by the mouth brim 4701 of the coffee soft shell capsule, and can only be rotated outwards along with the bowl cover 42, and the pull tab 48 removes the coffee The soft-shell capsule 470 is lifted upward, and the coffee soft-shell capsule can be taken out and poured out smoothly.

It should be noted that, different from the above embodiments, in this embodiment, the bowl seat 41 is located above the bowl cover 42, a water inlet is provided on the top of the bowl seat 41, and a top inner wall of the bowl seat is installed with a water inlet. The rear puncturing needle table, the rear puncturing needle table is provided with a water inlet hole communicating with the water inlet, and the rear puncturing needle table 4174 is installed on the rear puncturing needle table.

The bottom of the bowl cover 42 is provided with a coffee leakage hole 4201, and the periphery of the bottom inner wall of the bowl cover is provided with a front puncture mounting boss 4207, which is installed with a front puncture 427, and a peripheral edge of the front puncture 427 is installed The front pierce seal 428 that forms a seal with the mouth of the soft-shelled coffee capsule. The front piercing sealing ring 428 is installed on the periphery of the front piercing installation boss 4207, which has a V-shaped sealing lip, and the bottom peripheral step plane of the front piercing 427 is sealed with one side of the sealing lip to prevent the coffee liquid from leaking out. The other side of the sealing lip is in contact with the edge plane of the mouth of the coffee soft shell capsule to prevent coffee liquid from leaking. In addition, the front piercing 427 is provided with a piercing boss and a coffee hole. The piercing boss is used to pierce the capsule to achieve the function of brewing coffee.

It can be understood by those skilled in the art that a coffee machine provided by the present invention may include any structure and combination of the above-mentioned embodiments.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the above specific embodiments. Any modifications that do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims (9)

1. A multifunctional coffee machine, comprising a casing and a brewing head, a boiler, a battery and a direct current water pump mounted on the casing, the brewing head comprising a head frame, a drawer slideway arranged on the head frame, and a brewing head connected to the head frame. A water inlet block and a handle control mechanism for driving the upward and downward pressing of the water inlet block, the drawer slideway is connected with a drawer, and a coffee brewing device can be replaced in the drawer, and the coffee brewing device is a coffee powder brewing device, Coffee pod brewing device or coffee capsule brewing device; The coffee brewing device includes a bowl seat assembly and a bowl cover assembly, the bowl seat assembly includes a bowl seat, the bottom of the bowl seat is provided with a water outlet, the water outlet is installed with a one-way valve, and the bowl cover assembly includes a bowl cover, the top wall of the bowl cover is provided with a water inlet; The battery supplies power to the boiler and the DC water pump, the boiler heats brewing water, and the DC water pump transports the hot water pumped from the boiler to the coffee brewing device through the water inlet pipeline, and the coffee brewing device is used for coffee brewing; It is characterized in that: the water inlet block is provided with a water inlet channel, one end of the water inlet channel is provided with a water inlet connector, the water inlet connector is connected with the water inlet pipeline, and the other end of the water inlet channel is provided with a water inlet connector. A water inlet head inserted into the water inlet, a sealing groove is arranged on the water inlet head, a V-shaped sealing ring is installed in the sealing groove, and the mouth of the V-shaped sealing ring faces downward; the inner bottom of the bowl seat A bowl seat filter screen is installed on the wall, the bowl seat filter screen is installed on the filter screen bracket, and the filter screen bracket is installed on the filter screen sealing ring, the filter screen sealing ring and the inner bottom wall edge of the bowl seat and the filter screen edge Sealed to prevent coffee leakage. 2. A multifunctional coffee machine according to claim 1, characterized in that: the handle control mechanism comprises a handle and a connecting rod, the handle comprises a horizontal part and a vertical lower part connected with the rear end of the horizontal part, The handle is pressed down, the horizontal part is in a horizontal state, the upper part of the vertical lower part is connected with the rotating shaft, the lower part is hinged with one end of the connecting rod, the other end of the connecting rod is connected with the water inlet block, and the head frame is provided on the left and right sides of the water inlet head. The side plate is provided with a chute, the water inlet block is provided with a sliding part, and the sliding part is slidably connected with the chute. 3. A multifunctional coffee machine according to claim 1, wherein the boiler is provided with a thermostat for controlling the heating temperature of hot water, and when the water in the boiler is heated to a desired temperature, the thermostat controls The boiler automatically stops heating, and the boiler is provided with an exhaust hole for exhausting gas during heating and a water supply hole connected with the water pump. 4. The multifunctional coffee machine according to claim 3, wherein a pressure relief valve is connected to the water inlet pipeline between the DC water pump and the coffee brewing device, and the pressure relief valve is controlled by the brewing knob to open. close. 5. A multifunctional coffee machine according to claim 4, characterized in that: it further comprises a T-shaped joint, and the three interfaces of the T-shaped joint are respectively connected to the water outlet of the DC water pump, the pressure relief valve and the coffee brewing device the water inlet. 6. A multifunctional coffee machine according to claim 5, characterized in that: a water receiving box is arranged below the brewing head, and further comprises a three-way joint, and the three interfaces of the three-way joint are respectively connected to the exhaust gas The three-way joint collects the gas generated by the boiler heating and the waste water discharged from the pressure relief valve, and discharges it into the water receiving box through the drain pipe. 7. The multifunctional coffee machine according to any one of claims 1 to 6, wherein the upper part of the bowl seat is provided with an outer sealing cylindrical surface, and the inner peripheral wall of the bowl cover is provided with a sealing groove A V-shaped sealing ring is installed in the sealing groove to form a sealing fit with the outer sealing cylindrical surface, and the mouth of the V-shaped sealing ring faces upwards. 8 . The multifunctional coffee machine according to claim 7 , wherein a V-shaped sealing ring pressing ring is threadedly connected to the mouth of the inner peripheral wall of the bowl cover, and the upper part of the inner peripheral wall of the bowl cover is provided with an upper Step surface, the upper step surface and the upper end surface of the V-shaped sealing ring press ring form the upper and lower side walls of the sealing groove. 9. The multifunctional coffee machine according to claim 1, wherein the one-way valve comprises a valve body formed between the filter screen support and the bottom of the bowl seat, a valve cover installed on the bottom of the bowl seat, The plug and the spring are arranged in the valve cavity inside the valve body, the filter screen support is provided with a valve port, the block is matched with the valve port, and the spring is installed between the block and the valve cover.

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