CN206314985U - Coffee machine - Google Patents

Abstract

The utility model discloses a kind of coffee machine, including：Coffee container, it is interior provided with water-supply-pipe, and the upper end of water-supply-pipe is provided with pressure-regulating valve；Boiler, it is located at the lower section of coffee container, aqueduct is provided with boiler, aqueduct is used for when directing water into water-supply-pipe after the boiling water in boiler and being sprayed into through pressure-regulating valve in coffee container, and the upper end of aqueduct, which is provided with, is used for the Soft Roll basket for the funnel and/or accommodating Soft Roll coffee for housing coffee particles；Vacuum extractor, it is connected by air intake duct with boiler, casing, and it is outside boiler and vacuum extractor, and the top of casing and the bottom of coffee container are detachably connected.The utility model is by the way that the funnel for placing coffee powder particles is placed in boiler, and the air in boiler is discharged by vacuum extractor, the water vapour in boiler is increased under a certain pressure to reach the purpose of extraction coffee, coffee can be extracted by the optimal control to voltage x current and the diversification of coffee taste is realized by adjusting pressure-regulating valve.

Description

Coffee machine

Technical field

The utility model belongs to coffee machine technical field, more particularly to a kind of optimal control by Current Voltage Extract the coffee machine of coffee.

Background technology

Existing steam pressure coffee machine, can cook out that mouthfeel is strong, satisfied incomparable espresso, another market Upper common Moka coffee pot, it can also extract concentrated coffee using steam principle, but both coffee makers tool is not It is adapted to use in automobile.Automobile mounted power supply is DC12V/DV24V direct currents, wants heating water temperature in the short time, it is necessary to adopt Powerful heater is used, operating current can be very big, can thus highly impact automobile power supply system, there is safety hidden Suffer from.And if preparing coffee using low power heater, then the time heated can be very long, it is difficult to meet us and prepare coffee It is required that.Because these prepare temperature rise required by the utensil of coffee, insulation, saturation pressure, the condition such as coffee preimpregnation is harsh, simultaneously There is complex structure in these utensils for preparing coffee, bulky to wait factors again, thus can not be used in automobile.

Publication No. CN10209739B, entitled " a kind of coffee cup of vehicle-mounted distillation " Chinese patent, it is produced The principle of coffee is, sets many heating tubes, the water that the outer wall heating of heating tube can be in heating tube, the boiling water in heating tube Instilled after being distilled afterwards to coffee in specific cup, but many heating tubes carry out heating and are bound to power greatly simultaneously, moment Electric discharge can cause very big electric current, so as to blow insurance more than the current limit that vehicle power is set, it is also possible to cause to lead Line is hot and short-circuit, there is potential safety hazard.And for example Publication No. CN201849368U, a kind of entitled " suitable automobile The Chinese patent of the steam pressure coffee machine inside used ", employs steam pressure principle and cooks coffee, according to saturated-steam temperature With the law of pressure corresponding relation, the minimum pressure that obtain extraction concentrated coffee is 1.5dar, and corresponding temperature requirement reaches 110.8 DEG C, due to being used in automobile, limited by the voltage and current of automobile mounted power supply, the coffee machine still can not The vapor (steam) temperature of saturation is obtained, the pressure value of extraction concentrated coffee is not reached requirement, have impact on the quality of coffee.

Utility model content

It is not suitable for preparing the technical problem of coffee in the car for preparing the utensil of coffee present in prior art, this Utility model provides a kind of coffee machine, technological deficiency of the existing coffee machine by supply voltage current limit is overcome, by excellent Coffee can be extracted by changing control.

In order to solve the above technical problems, the technical solution adopted in the utility model is：

A kind of coffee machine, including：

Coffee container, water-supply-pipe is provided with it, and the upper end of the water-supply-pipe is provided with pressure-regulating valve；

Boiler, it, which is located in the lower section of the coffee container, the boiler, is provided with aqueduct, and the aqueduct is used to work as The water-supply-pipe is directed water into after boiling water in the boiler and is sprayed into through the pressure-regulating valve in the coffee container, institute The upper end for stating aqueduct is provided with the Soft Roll basket of funnel and/or accommodating Soft Roll coffee for housing coffee particles；And

Vacuum extractor, it is connected by air intake duct with the boiler；

Casing, it is outside boiler and vacuum extractor, and the top of casing and the bottom of coffee container are detachably connected.

Preferably, the pressure-regulating valve includes：

At least have in valve body, the valve body and be communicated to the first flow of the coffee container and second flow channel and connect To the third flow channel of the water-supply-pipe, the first flow, second flow channel intersect with third flow channel and connected in intersection；

Elasticity is stifled, and it includes the first spring and the first steel ball, and first steel ball is placed in the intersection, and with described the One end connection of one spring, first spring is placed in the second flow channel；And

Adjustable knob, it has threaded shank, and the threaded shank is located in the second flow channel and supported with first spring Connect；The turncap of the adjustable knob is provided with pressure value gear.

Preferably, the coffee container has upper lid, outside fasten of the upper lid has top cover, and the top cover is provided with Water check valve, the water check valve is stretched into the coffee container through the upper lid, and the water check valve is located in the coffee container Part on there are multiple air-vents for being connected with the coffee container, the waterstop port of the water check valve is in communication with the outside.

Preferably, the coffee container has upper lid, one end and the coffee container of the upper lid are hinged；On described Retaining mechanism is provided between the other end of lid and the coffee container, the retaining mechanism includes：

Upper cover buckle, the upper cover buckle is on the upper lid；

Buckle, the buckle is on the coffee container, and the buckle has towards the side of the coffee container to be used In the groove fastened with the upper cover buckle, two relative outsides of the buckle set ball respectively, and wherein one outside is also set up Push button；And

Side plate, the side plate is outside both sides of the buckle provided with the ball, and the side plate is provided with circular hole and length Hole, the push button stretches out outside elongated hole and can slided in the presence of external force along the elongated hole, when the buckle is in the push button Drive lower slider to when being fastened with the upper cover buckle, the ball is embedded in the circular hole.

Formed preferably, the casing is interlocked by two shells.

Preferably, the bottom of the coffee container is provided with upper spinner, the top of the casing is provided with lower spinner, it is described on Spinner and backspin button are locked, and the upper spinner and lower spinner are sealed by plain washer.

As further preferred, the coffee machine also includes the filter disc and filter screen inside the upper spinner, the filter Piece is connected on the plain washer, and the filter screen is on the filter disc and positioned between the filter disc and the water-supply-pipe.

As further preferred, collet is provided with the casing, the collet is fixedly connected simultaneously with the lower spinner Make the boiler support in the collet, provided with the passage connected with the air intake duct and boiler in the collet, Safety valve is provided with the passage.

Preferably, the bottom of the boiler provided with heating component, the heating component include heating board, temperature measuring head, every Heat pad and gland, the heating plate and temperature measuring head are located at the bottom of the boiler, the heat insulating mattress located at the heating plate and Outside temperature measuring head, the heating board, temperature measuring head and heat insulating mattress are covered and are anchored on the bottom of the boiler by the gland.

Preferably, the coffee machine also includes automatically controlled mainboard, switch control panel and switch key, the automatically controlled mainboard with The vacuum extractor, switch control panel, heating board and temperature measuring head electrical connection.

Compared with prior art, the utility model is had an advantageous effect in that：The utility model will be by that will place coffee The funnel of powder particles is placed in boiler, and discharges the air in boiler by vacuum extractor, makes the water vapour in boiler one Rise under fixed pressure to extract coffee, coffee can be extracted by the optimal control to Current Voltage, and by adjusting pressure Regulating valve realizes the diversification of coffee taste to extract coffee at various pressures.

Brief description of the drawings

Fig. 1 is the dimensional structure diagram of coffee machine of the present utility model；

Fig. 2 is the cross section structure diagram of coffee machine of the present utility model；

Fig. 3 be Fig. 2 in pressure-regulating valve enlarged section structural representation；

Fig. 4 be coffee machine of the present utility model in boiler configuration schematic diagram；

Fig. 5 is the funnel of coffee machine of the present utility model and the decomposition texture schematic diagram of Soft Roll basket, the machine that illustrated therein is A shell part；

Fig. 6 be coffee machine of the present utility model in coffee container dimensional structure diagram；

Fig. 7 is the dimensional structure diagram at another visual angle of coffee machine of the present utility model；

Fig. 8 is the schematic diagram of the circuit control system of coffee machine of the present utility model.

In figure：The shells of 1- first；2- second housings；201- steam vents；202- air admission holes；203- connecting holes；Covered on 3-；4- Coffee container；401- pourings mouthful；402- rotating shafts；5- water-supply-pipes；6- pressure-regulating valves；601- valve bodies；602- first flows；603- Plug Division；604- second flow channels；The steel balls of 605- first；606- third flow channels；The springs of 607- first；7- adjustable knobs；701- is pressed Force value gear；8- top covers；9- water check valves；901- sealing valve bodies；The steel balls of 902- second；903- waterstop ports；10- retaining mechanisms； 101- buckles；102- push buttons；103- second springs；104- balls；105- side plates；The upper spinners of 11-；Spinner under 12-；13- boilers； 14- collets；15- heating boards；The temperature measuring heads of 16- first；17- heat insulating mattress；The temperature measuring heads of 18- second；19- glands；20- funnels；21- Criny；22- aqueducts；23- filter screens；24- filter discs；25- plain washers；26- Soft Roll baskets；27- seal washers；28- vacuum pumps； 29- air intake ducts；30- safety valves；31- switch keys；32- switchs control panel；33- power lines；34- cigarette lighter plugs；35- is automatically controlled Mainboard；The upper catching grooves of 36-；37- screws；The upper cover buckles of 38-.

Embodiment

It is below in conjunction with the accompanying drawings and specific real to make those skilled in the art be better understood from the technical solution of the utility model Example is applied to elaborate to the utility model.

Embodiment of the present utility model discloses a kind of coffee machine, and the coffee machine is particularly suitable for use in and used in automobile, and Optimize control to extract the coffee of various tastes by electric current and voltage to vehicle power.As shown in Figures 1 to 7, coffee Coffee machine includes coffee container 4, boiler 13, casing and vacuum extractor, wherein, coffee container 4 holds provided with pouring mouthful 401, coffee Water-supply-pipe 5 is provided with device 4, the upper end of water-supply-pipe 5 is provided with pressure-regulating valve 6, and boiler 13 is located at the lower section of coffee container 4, pot It is provided with aqueduct 22 in stove 13, aqueduct 22 is used for when directing water into water-supply-pipe 5 after the boiling water in boiler 13 and through pressure Regulating valve 6 is sprayed into coffee container 4, and the upper end of aqueduct 22 is provided with the funnel 20 for housing coffee particles and/or housed The Soft Roll basket 26 of Soft Roll coffee.Vacuum extractor is connected by air intake duct 29 with boiler 13, with by air intake duct 29 to boiler 13 Interior pressurization, excludes air.Casing is outside boiler 13 and vacuum extractor, and the top of casing and the bottom of coffee container 4 can Dismounting connection.

In the present embodiment, continuing with Fig. 2 and Fig. 3, pressure-regulating valve 6 includes valve body 601, elasticity and blocked up and adjustable knob 7, At least there is the first flow 602 and second flow channel 604 for being communicated to coffee container 4 in valve body 601 and water-supply-pipe 5 is communicated to Third flow channel 606, valve body 601 has a Plug Division 603, to insert in the mouth of pipe of water-supply-pipe 5, and third flow channel 606 is located at grafting In portion 603, first flow 602, second flow channel 604 intersect with third flow channel 606 and connected in intersection.

Elastic blocking package includes the first spring 607 and the first steel ball 605, and the first steel ball 605 is placed in intersection, and with the first spring 607 one end connection, the first spring 607 is placed in second flow channel 604 when pressure of the infusion in water-supply-pipe 5 reaches necessarily Can be by the jack-up of the first steel ball 605 during value, now highly pressurised liquid is ejected into coffee container 4 through first flow 602.Pressure is adjusted Also there is an annular chamber in the valve body 601 of valve 6, and first flow 602 is connected by annular chamber with coffee container, to reduce Or avoid coffee liquid from being sprayed on the inwall of lid 3 or coffee container 4, it is easy to cleaning.

Continuing with Fig. 3 and Fig. 6, adjustable knob 7 has a threaded shank, and threaded shank is located in second flow channel 604 and with first Spring 607 is abutted；The turncap of adjustable knob 7 is provided with three pressure value gears 701 with different pressures value, certainly, pressure The quantity of value gear 701 can be set according to actual needs, and and be confined in the present embodiment three, such as two gears, Four gears etc..In use, selection of the operator according to pressure value gear 701, adjusts adjustable knob 7, makes the spiral shell of adjustable knob 7 The first spring of bar portion pushing tow 607, when the pressure in boiler 13 is reached the pressure value that pressure value gear 701 is set, coffee liquid is from the Coffee container 4 is sprayed into one runner 602, therefore, the present embodiment can obtain three kinds of different tastes according to the difference of pressure value Coffee.

In the present embodiment, with reference to Fig. 1, Fig. 2, Fig. 6 and Fig. 7, outside fasten of upper lid 3 has top cover 8, in the centre of top cover 8 Position is provided with water check valve 9, when having a large amount of steam in coffee container 4, and gas can outwards be discharged by water check valve 9, once coffee The body of machine is overturned or tilted, and water check valve 9 will prevent leaked liquid, prevent accident.In the present embodiment, water check valve 9 Including the steel ball 902 of sealing valve body 901 and second, 901 are provided with chamber in water check valve body, and the second steel ball 902 is placed in chamber, chamber It is in communication with the outside by a waterstop port 903；The lower end of sealing valve body 901 is stretched into coffee container 4 through upper lid 3, and water check valve 9 Stretching into has the multiple air-vents connected with coffee container 4 and chamber on the part in coffee container 4, normally in use, coffee Steam in coffee can pass sequentially through air-vent, chamber and waterstop port and emit, and when coffee machine is toppled over or is tilted, second When steel ball 902 is rolled in chamber therewith, waterstop port 803 will be blocked, therefore can prevent that liquid from releasing.

In the present embodiment, with reference to Fig. 2 and Fig. 6, rotating shaft 402 is provided with coffee container 4, upper lid 3 passes through rotating shaft 402 and coffee Coffee container 4 is hinged, and retaining mechanism 10 is provided between upper lid 3 and coffee container 4, and retaining mechanism 10 includes upper cover buckle 38, buckle 101 and side plate 105, the side wall of upper lid 3 is provided with upper catching groove 36, and side plate 105 is on coffee container 4, and when upper lid 3 is fastened on When on coffee container 4, the both sides of upper catching groove 36 are corresponding with two side plates 105 to abut.Upper cover buckle 38 is in upper catching groove 36.Buckle 101 on coffee container 4, and buckle 101 has the groove for being used for fastening with upper cover buckle 38 towards the side of coffee container 4, and Bottom in groove sets second spring 103, and the two ends of second spring 103 are connected to the outer wall of coffee container 4 and recessed On groove, two relative outsides of buckle 101 set ball 104 respectively, and wherein one outside also sets up push button 102.Side plate 105 is located at Two outsides of the buckle 101 provided with ball 104 are outer, and side plate 105 is provided with circular hole and elongated hole, the inwall of side plate 105 along circular hole Above-below direction is provided with shallow slot (not shown), and push button 102 stretches out outside elongated hole and can slided in the presence of external force along elongated hole, when Buckle 101 is when the drive lower slider of push button 102 is extremely fastened with upper cover buckle 38, and buckle 101 is existed by the bales catch of second spring 103 In upper cover buckle 38, while making ball 104 be embedded in along shallow slot in circular hole, the lock between lid 3 and coffee container 4 can be now realized Tightly.Therefore, the retaining mechanism 10 in the present embodiment, buckle 101 can not be opened in the case where not promoting push button 102, so as to have Prevent to effect automobile in fluctuation because misoperation causes coffee liquid to leak and scald personnel, it is therefore prevented that the generation of accident. In addition, the root edge of upper lid 3 is provided with upper Cover Gasket circle, when upper lid 3 is closed, upper Cover Gasket circle coincide close with the top edge of coffee container 4 Envelope, can prevent coffee liquid from leaking or overflowing.

In order that the structure of the coffee machine of embodiment of the present utility model is compacter, and the occupancy reduced in the car is empty Between, in the present embodiment, the fuselage of coffee machine is made up of upper and lower two large divisions, specifically incorporated by reference to Fig. 1, Fig. 2 and Fig. 7, upper part by Upper lid 3, coffee container 4 and upper spinner 11 are constituted, and upper spinner 11 is located at the bottom of coffee container 4.Lower part is by lower spinner 12, machine Shell and the boiler 13 in casing and the vacuum extractor located at the lower section of boiler 13, automatically controlled mainboard 35 and other electrical connections Part.Wherein, lower spinner 12 is located at the top of casing, and lower spinner 12 and upper spinner 11 can be closely interlocked by screwing, And upper spinner 11 and lower spinner 12 are sealed by plain washer 25, for preventing from loosening, and the leakage of gas, liquid is prevented from. In addition, the body of the coffee machine in the present embodiment makes body one compact entirety of formation by upper spinner 11 and lower spinner 12, And larger pressure can be carried, thus it is safe and reliable, it is easy to operate, it is highly suitable for using in automobile.

In the present embodiment, continuing with Fig. 2 and Fig. 5, funnel 20 is set up on lower spinner 12, and is stretched in boiler 13, Criny 21 is provided with funnel 20, for placing coffee powder particles.The bottom of Soft Roll basket 26 is provided with seal washer 27, Soft Roll basket 26 It is placed in funnel 20 and upper end is abutted with plain washer 25, it is close with the wall of funnel 20 to be realized by plain washer 25 and seal washer 27 Envelope.

In the present embodiment, continuing with Fig. 2 and Fig. 6, coffee machine also includes the filter disc 24 and filter inside upper spinner 11 Net 23, the outer rim of filter disc 24 is connected on plain washer 25, filter screen 23 on the filter disc 24 and positioned at filter disc 24 and water-supply-pipe 5 it Between, it is mainly used in cafe filter granulated slag, prevents that the first flow 602 of pressure-regulating valve 6 is blocked.

Casing in the present embodiment is fastened by 2 two shells of the first shell 1 and second housing and formed, and is easily installed boiler 13rd, vacuum extractor, automatically controlled mainboard 35 (will now be described) and other electric connecting parts.Wherein, as shown in fig. 7, second The upper and lower ends of the fastening side of shell 2 are respectively equipped with connecting hole 203, and the upper and lower ends of the fastening side of the first shell 1 are respectively equipped with Protuberance is connected to connecting hole 203 for stretching into the protuberance (not shown) in connecting hole 203, and by screw 37 It is interior.As shown in Fig. 2 being provided with the switch control in switch key 31, the shell 1 of switch key 31 and first on the surface of the first shell 1 Making sheet 32 is electrically connected, and can control the open and close of power supply, on the surface of second housing 2 provided with air admission hole 202 and for making The hole that power line 33 is passed through, cigarette lighter plug 34 is connected by power line 33 with switch control panel 32, and cigarette lighter plug 34 is used for Electrically connected with the cigar lighter in automobile.

In the present embodiment, continuing with Fig. 2 and Fig. 4, collet 14 is provided with casing, collet 14 is linked to be with lower spinner 12 One simultaneously makes boiler 13 be set up in collet 14, provided with the passage connected with air intake duct 29 and boiler 13 in collet 14, Be provided with safety valve 30 on passage, passage be provided with the valve body of safety valve 30, be provided with to be connected with air intake duct 29, and in passage with The operation principle identical elasticity of pressure-regulating valve 6 is stifled, safety valve 30 is discharged automatically when operating pressure exceedes setting value Pressure, it is ensured that safe operation.

As shown in Figure 2 and Figure 8, the bottom in casing is also provided with automatically controlled mainboard 35 and vacuum extractor, the present embodiment The vacuum means shown are set to vacuum pump 28.

The bottom of boiler 13 is provided with heating component, for being heated for the water in boiler 13.As shown in Figure 2 and Figure 4, heating group Part includes heating board 15, the first temperature measuring head 16, heat insulating mattress 17 and gland 19, and the temperature measuring head 16 of heating board 15 and first is located at boiler 13 bottom, heat insulating mattress 17 is outside the temperature measuring head 16 of heating board 15 and first, and the first temperature measuring head 16 is used to control heating board 15 not Can dry combustion method.Heating board 15, the first temperature measuring head 16 and heat insulating mattress 17 are covered and are anchored on the bottom of boiler 13 by gland 19, form one Individual compound body.The bottom of boiler 13 also sets up the second temperature measuring head 18, and the second temperature measuring head 18 is stretched in boiler 13, for detecting pot The temperature of heating water in stove 13.First temperature measuring head 16 and the second temperature measuring head 18 are NTC thermistor, and respectively with automatically controlled mainboard 35 connections, to feed back to automatically controlled mainboard 35 by signal transmission, realization is corresponded to respectively to be prevented in dry combustion method and automatic control boiler 13 Heating-up temperature.

In the present embodiment, vacuum pump 28, switch control panel 32, heating board 15, the first temperature measuring head 16, the second temperature measuring head 18 It is connected with automatically controlled mainboard 35, sends instruction by programming by signal transmission and feedback, then by automatically controlled mainboard 35, composition one is certainly Autocontrol system, facilitates driver and crew to operate with.

Operation principle and the course of work of the present utility model are：Cold water is injected in boiler 13, granule coffee powder will be installed The funnel 20 (band Soft Roll basket 26) of (or Soft Roll coffee) is put into boiler 13, and upper spinner 11 is docked with lower spinner 12 and screwed, so The cigarette lighter plug 34 on power line 33 is inserted in vehicle-mounted cigarette lighter afterwards, in the glass stand that casing is put into in-car, switch is pressed Button 31, at this moment when red represent that coffee machine is started working, after about 3min~4min, the water in boiler 13 is heated to approach boiling When rising, red light goes out, and blue lamp is bright, and expression granule coffee powder is among infiltration, after infiltration 20S~30S clocks, according to automatically controlled mainboard 35 instruction, vacuum pump 28 starts to pressurize to boiler 13, and the air in boiler 13 is excluded by steam vent 201, When the pressure in boiler 13 reaches the setting value of pressure value gear 701, high-temperature-hot-water sequentially passes through aqueduct 22, by funnel Granule coffee powder in net 21, then the first flow 602 through filter 24, the arrival pressure-regulating valve 6 of filter screen 23, most backward coffee Injection coffee liquid in container 4, this course of work is referred to as to extract coffee.Extract after coffee completion, blue indicator light is gone out, Buzzer on automatically controlled mainboard 35 is yowled, while coffee machine is automatically powered off, producing for coffee is completed with regard to this.Driver and crew first will The push button 102 of the side of retaining mechanism 10 is pushed up, ball 104 is departed from circular hole, then presses the buckle 101 of retaining mechanism 10, At this moment upper lid 3 will be automatically opened up, and then can just be picked up positive coffee machine and poured into coffee in cup by pouring mouthful 401 and drink .

Above example is only exemplary embodiment of the present utility model, is not used in limitation the utility model, and this practicality is new The protection domain of type is defined by the claims.Those skilled in the art can be in essence of the present utility model and protection domain It is interior, various modifications or equivalent are made to the utility model, this modification or equivalent also should be regarded as new in this practicality In the protection domain of type.

Claims (10)

1. a kind of coffee machine, it is characterised in that including：

Coffee container, water-supply-pipe is provided with it, and the upper end of the water-supply-pipe is provided with pressure-regulating valve；

Boiler, it, which is located in the lower section of the coffee container, the boiler, is provided with aqueduct, and the aqueduct is used for when described The water-supply-pipe is directed water into after boiling water in boiler and is sprayed into through the pressure-regulating valve in the coffee container, it is described to lead The upper end of water pipe is provided with the Soft Roll basket of the funnel and/or accommodating Soft Roll coffee for housing coffee particles；

Vacuum extractor, it is connected by air intake duct with the boiler；And

Casing, it is outside the boiler and vacuum extractor, and the top of the casing can with the bottom of the coffee container Dismounting connection.

2. coffee machine according to claim 1, it is characterised in that the pressure-regulating valve includes：

At least there is the first flow and second flow channel for being communicated to the coffee container in valve body, the valve body and institute is communicated to The third flow channel of water-supply-pipe is stated, the first flow, second flow channel intersect with third flow channel and connected in intersection；

Elasticity is stifled, and it includes the first spring and the first steel ball, and first steel ball is placed in the intersection, and with first bullet One end connection of spring, first spring is placed in the second flow channel；And

Adjustable knob, it has threaded shank, and the threaded shank is located in the second flow channel and abutted with first spring；Institute The turncap for stating adjustable knob is provided with pressure value gear.

3. coffee machine according to claim 1, it is characterised in that the coffee container has outside upper lid, the upper lid Portion, which is fastened, top cover, and the top cover is provided with water check valve, and the water check valve is stretched into the coffee container through the upper lid, institute State water check valve has the multiple air-vents connected with the coffee container, the sealing on the part in the coffee container The waterstop port of valve is in communication with the outside.

4. coffee machine according to claim 1, it is characterised in that the coffee container has upper lid, the one of the upper lid End is hinged with the coffee container；Retaining mechanism, the locking are provided between the other end and the coffee container of the upper lid Mechanism includes：

Upper cover buckle, the upper cover buckle is on the upper lid；

Buckle, the buckle on the coffee container, the buckle have towards the side of the coffee container be used for The groove that the upper cover buckle is fastened, two relative outsides of the buckle set ball respectively, and wherein one outside also sets up push button； And

Side plate, the side plate is outside both sides of the buckle provided with the ball, and the side plate is provided with circular hole and elongated hole, institute State push button to stretch out outside elongated hole and can slide along the elongated hole in the presence of external force, when under drive of the buckle in the push button When sliding into the upper cover buckle fastening, the ball is embedded in the circular hole.

5. coffee machine according to claim 1, it is characterised in that the casing is interlocked by two shells and formed.

6. coffee machine according to claim 1, it is characterised in that the bottom of the coffee container is provided with upper spinner, described The top of casing is provided with lower spinner, and upper spinner and the backspin button is locked, and the upper spinner and lower spinner pass through plain washer Sealing.

7. coffee machine according to claim 6, it is characterised in that the coffee machine also includes inside the upper spinner Filter disc and filter screen, the filter disc is connected on the plain washer, and the filter screen is on the filter disc and positioned at the filter disc Between the water-supply-pipe.

8. coffee machine according to claim 6, it is characterised in that be provided with collet in the casing, the collet with The lower spinner is fixedly connected and makes the boiler support in the collet, is provided with and the air intake duct in the collet Safety valve is provided with the passage connected with boiler, the passage.

9. coffee machine according to any one of claim 1 to 8, it is characterised in that the bottom of the boiler is provided with heating Component, the heating component includes heating board, temperature measuring head, heat insulating mattress and gland, and the heating plate and temperature measuring head are located at described The bottom of boiler, the heat insulating mattress outside the heating plate and temperature measuring head, the gland by the heating board, temperature measuring head and every Heat pad covers and is anchored on the bottom of the boiler.

10. coffee machine according to any one of claim 1 to 8, it is characterised in that the coffee machine also includes automatically controlled master Plate, switch control panel and switch key, the automatically controlled mainboard and the vacuum extractor, switch control panel, heating board and thermometric Head electrical connection.