CN209644689U - A kind of air pump booster-type capsule coffee machine - Google Patents

Abstract

The utility model discloses a kind of air pump booster-type capsule coffee machine, including shell, dismountable mobile power source, boiler and extraction cell for placing coffee capsule；Shell is additionally provided with air accumulator and the air pump for pressurizeing to air accumulator, and control valve is connected at the gas outlet of air accumulator, and control valve is connect by the first connecting tube with boiler, and boiler is connect by the second connecting tube with extraction cell；Control valve includes the fixing seat connecting with the first connecting tube, the valve body connecting with fixing seat, the opening device connecting with valve body.The utility model uses dismountable mobile power source to be powered for boiler, has portable feature, it is more suitable for outgoing and outdoor use, meet user whenever and wherever possible coffee for drinking the needs of, and the utility model is when extracting coffee capsule, can have biggish pressure, so as to extract more aromatic coffee.

Description

A kind of air pump booster-type capsule coffee machine

Technical field

The utility model relates to a kind of portable coffee machines, more particularly, to a kind of air pump booster-type capsule coffee machine.

Background technique

Coffee is most by one of favorite beverage of people, for more convenient and whenever and wherever possible infuse coffee, Yi Zhongbian The coffee machine for taking formula is developed.Chinese patent if publication No. is 106724819 A of CN discloses a kind of Portable electric-heating Coffee cup, including electrical heating water cup, distillation cups, cup lid and control circuit, electrical heating water cup is interior to be equipped with chamber to boil water, sets in distillation cups There is liquid storage chamber, is equipped with distillation cascade in liquid storage chamber, chamber to boil water is led to through distillation cups bottom in distillation cascade lower end, and storage is led in distillation cascade upper end Sap cavity top, cup lid are connect with distillation cups upper end, and control circuit and electrical heating water cup are electrically connected；It further include temperature sensing device and general The temperature indicating device that the temperature display of temperature sensing device detection comes out, the temperature sensing device are arranged in liquid storage chamber, for visiting Survey the temperature change in liquid storage chamber.

Existing portable coffee machines are commonly above-mentioned soaking type coffee machine, can not be suitable for it is existing to extracting pressure have compared with The espresso coffee capsule of high request such as the concentrated coffee capsule of Lavazza Point, therefore cannot meet user to aromatic very well The demand of espresso coffee.

Utility model content

The purpose of the utility model is to provide a kind of air pump booster-type capsule coffee machines, extract to above-mentioned coffee capsule When taking, can have biggish pressure, to extract more aromatic coffee liquid.

The above-mentioned purpose of the utility model has the technical scheme that

A kind of air pump booster-type capsule coffee machine, including shell, power supply, boiler and extraction for placing coffee capsule Room；The shell is additionally provided with air accumulator and the air pump for pressurizeing to air accumulator, is connected at the gas outlet of the air accumulator Control valve, the control valve are connect by the first connecting tube with boiler, and the boiler is connect by the second connecting tube with extraction cell；

The control valve includes the fixing seat connecting with the first connecting tube, the valve body connecting with fixing seat, connect with valve body Opening device；The valve body includes tubular body and the connector for being connected radially to tubular body, the connector and air accumulator Connection；Valve port is equipped in the tubular body, the valve port is located at connector towards the side of fixing seat, the fixing seat and valve port Between be connected with valve rod, be connected with valve circle on the valve rod, valve circle is rubber system sealing ring；Connect between the fixing seat and valve rod It is connected to the spring for driving valve circle closing valve port；

The opening device includes the push rod being slidably connected in tubular body, and the push rod is located at connector backwards to valve port Side；The valve rod passes through valve port and push rod contradicts；The opening device further includes the knob that rotation is connected on shell, described Knob is located at the intracorporal side of shell equipped with sliding block, and the push rod is equipped with sliding slot, and the push rod cooperates shape by sliding slot and sliding block At axial Sliding Structures, the tubular body be equipped with helicla flute, the push rod be connected be slidably connected to it is convex in helicla flute Bar.

By using above-mentioned technical proposal, air pump can be used for pressurizeing to air accumulator, to be formed in air accumulator Biggish air pressure；When extracting to coffee capsule, rotation is located at the knob on shell, and knob passes through sliding on sliding block and push rod The cooperation of slot drives push rod rotation；When push rod rotates, nose bar is moved along helicla flute, since nose bar is connect with push rod, thus band Dynamic push rod is mobile to side where valve port, and push rod press valve rod makes valve rod overcome the elastic force of spring mobile to side where fixing seat, Since valve circle is connected on valve rod, valve port is opened at this time.The pressure for being stored in air accumulator enters by valve port, the first connecting tube In boiler, the hot water in boiler is pressed into extraction cell by the second connecting tube, the coffee capsule being placed in extraction cell is carried out Extraction.Hot water and coffee capsule can be allowed to be maintained for biggish pressure when just contacting in such a way that air accumulator pressure store discharges again Power, although pressure can gradually weaken in extraction process, it is also possible that pressure is maintained at biggish model in entire extraction process In enclosing, so that more aromatic coffee be obtained by extraction.Tradition slowly to the way of hot water pressurization, will lead to hot water just and coffee capsule When contact, pressure is lesser, but hot water is contacted with coffee capsule, so that the grease in coffee is filtered off；Increase again below When being added to enough pressure, the mouthfeel of coffee has been affected；Therefore it can be extracted using the technical solution of the utility model To more aromatic coffee.

The utility model is further arranged to: the extraction cell lower portion is for placing coffee capsule, extraction cell upside There are feed liquor space, the extraction cell bottoms to be equipped with liquid outlet for part；The extraction cell is equipped with note in feed liquor space position The mouth of a river；The water filling port is connect with the second connecting tube.

By using above-mentioned technical proposal, reserved feed liquor space can make hot water in the whole cross section of coffee capsule By coffee capsule, so that hot water is adequately contacted with coffee capsule, so that more aromatic coffee liquid be obtained by extraction.

The utility model is further arranged to: the inner sidewall of the extraction cell is equipped with for supporting patch with coffee capsule side wall Sealing ring contradicts on the sealing ring and is connected with compact heap.

By using above-mentioned technical proposal, sealing ring can close coffee capsule side wall and extract the seam between chamber interior walls Gap, so that hot water has to pass through the extraction that coffee capsule carries out coffee liquid；Compact heap squeeze sealing ring allow sealing ring with The side wall of coffee capsule is in close contact, and improves leakproofness.

The utility model is further arranged to: the compact heap is annular and outer wall is equipped with external screw thread, the extraction cell Inner wall is equipped with internal screw thread, the inner thread connection of the compact heap and extraction cell.

By using above-mentioned technical proposal, the inner thread connection of compact heap and extraction cell is on the one hand in sealing ring aging When, facilitate to take out sealing ring and replace；On the other hand it does not need to open up annular groove in the inner wall of extraction cell to install sealing ring, make It is simpler to obtain mold design, mould development cost can be reduced.

The utility model is further arranged to: the liquid outlet is equipped with check valve assembly, and the check valve assembly includes envelope Head, mounting base and support spring, the support spring are installed between mounting base and end socket, and the end socket and liquid outlet contradict； The bottom of the extraction cell is equipped with the protrusion for contradicting with coffee capsule.

It by using above-mentioned technical proposal, when coffee capsule is placed in extraction cell, contacts in protrusion, so that extraction cell bottom Indwelling space is formed between portion and coffee capsule, the coffee liquid extracted from coffee capsule will not be due to the blocking of end socket at once It squeezes end socket to flow out from liquid outlet, but to reach and be flowed out below certain process stage from liquid outlet, which can make It obtains the coffee liquid further to mix in extraction cell with coffee capsule, so that more aromatic coffee liquid be obtained by extraction.

The utility model is further arranged to: the housing bottom of the extraction cell is equipped with attachment base, and the attachment base is equipped with External screw thread, the mounting base are equipped with internal screw thread, and the mounting base is threadedly coupled with attachment base.

By using above-mentioned technical proposal, it is rotatablely installed the elastic force of the adjustable support spring of seat, to change liquid outlet Cracking pressure, use more flexible convenience.

The utility model is further arranged to: the boiler is threaded with spiral cover, and the boiler is equipped with to be turned in spiral cover The pressure relief mechanism of pressure release is carried out when dynamic；The pressure relief mechanism includes the pressure release passage being set on boiler wall with external communication, institute It states and slidably connects spool in pressure release passage, the pressure release spring for promoting it to open pressure release passage is connected on the spool；It is described Spool and spiral cover contradict, and when the spiral cover screws, spiral cover pushes spool to close pressure release passage.

By using above-mentioned technical proposal, so that spiral cover and spool are linkages, when spiral cover screws, spool closes pressure release Channel；When spiral cover is opened, spool opens pressure release passage, easy to operate, and there is no forget to open pressure release passage when uncapping Situation, use are safer.

The utility model is further arranged to: the side wall of the valve rod is radially connected several slide bars, the valve body it is interior Wall is equipped with the slippage slot slid for slide bar；The push rod is equipped with groove towards the end of valve rod side；The valve rod contradicts In bottom portion of groove；The groove inner sidewall is equipped with closing piece；Lateral wall of the valve rod towards push rod one end is radially connected to be had in pairs The fixture block of setting forms the clip slot for clamping closing piece between two fixture blocks；The nose bar slides onto helicla flute far from valve rod When one end, closing piece is transferred in clip slot with push rod.

By using above-mentioned technical proposal, when turning knob drives push rod rotation, nose bar slides along helicla flute, simultaneously So that push rod generates axial movement；When nose bar slides onto the one end of helicla flute far from valve rod, i.e., push rod is the shape far from valve port State, valve rod contact on push rod under the action of the spring, so that valve circle closes valve port.At this point, closing piece is by being rotated into folder It in slot, and is limited by fixture block, so that the position of valve rod is locked, valve rod can not continue to move axially, thus by valve circle Position also locks, so that valve port is in closed state.And limited since valve rod is slided in slippage slot by slide bar, so that lock It during block enters clip slot, will not be rotated with valve rod, valve rod can only axially slide, and closing piece can smoothly enter into Clip slot.The program is used, air accumulator is allowed to store bigger pressure, and does not have to worry because pressure store is excessive so that gas The problem of pressure overcomes spring force to act on, sealing valve port is caused to fail.Therefore, it can be provided for the extraction of coffee capsule bigger Pressure.

The utility model is further arranged to: the inlet of the clip slot is equipped with lead-in chamfered, and the closing piece is for entering The end of clip slot is equipped with the guiding surface cooperated with lead-in chamfered；The valve rod is equipped with elastic cushion towards the end of push rod.

By using above-mentioned technical proposal, valve rod is contradicted by elastic cushion and push rod, under the action of elastic cushion, closing piece The axial position of axial position and clip slot can slightly generate dislocation；The position of clip slot is slightly located at the side where valve port.In When push rod rotation is so that closing piece contacts at the inlet of clip slot, valve circle is substantially mobile with valve rod and contacts at valve port, Being further continued for turning knob at this time rotates push rod, since the inlet that closing piece is equipped with guiding surface and clip slot is equipped with guidance tiltedly Face, under the action of guiding surface and lead-in chamfered, closing piece can be squeezed into clip slot by force, so that elastic cushion is compressed, simultaneously But also valve rod is tensed to push rod side, allow valve circle is closer to be adjacent to valve port, thus in locking valve rod position While sealing effect at valve port can also be effectively ensured；Reduce clearance leakage.

The utility model is further arranged to: positioning convex point is equipped at inner wall of the helicla flute far from valve rod one end, it is convex Bar crosses positioning convex point when being moved to the end.

By using above-mentioned technical proposal, when nose bar is moved to the one end of helicla flute far from valve rod, valve rod is in quilt at this time Closing piece locking state, setting positioning convex point nose bar position can be defined so that turning knob must have can make it is convex Bar crosses the power of positioning convex point, so as to avoid accidentally touching knob, push rod is caused to be rotated；With fool proof work With.

Detailed description of the invention

Fig. 1 is the main view of embodiment one；

Fig. 2 is the side view of embodiment one；

Fig. 3 is the schematic diagram of internal structure of embodiment one；

Fig. 4 is the schematic cross-sectional view in Fig. 1 at A-A；

Fig. 5 is the enlarged diagram of part A in Fig. 4；

Fig. 6 is the enlarged diagram of part B in Fig. 4；

Fig. 7 is the structural representation of one control valve of embodiment；

Fig. 8 is the perspective view of the explosion of embodiment one knob and push rod；

Fig. 9 is the partial schematic sectional view of embodiment one；

Figure 10 is the enlarged diagram of C portion in Fig. 9；

Figure 11 is the perspective view of the explosion of one funnel assemblies of embodiment；

Figure 12 is the explosion signal of two control valve of embodiment；

Figure 13 is the enlarged diagram of the part D in Figure 12；

Figure 14 is the perspective view of the explosion of embodiment two valve rods and push rod；

Figure 15 is the enlarged diagram of the part E in Figure 14；

Figure 16 is the schematic diagram that embodiment two highlights closing piece Yu clip slot mated condition；

Figure 17 is the enlarged diagram of the part F in Figure 16；

Figure 18 is the schematic diagram that embodiment two highlights positioning convex point setting position.

Description of symbols: 1, shell；2, power supply；3, extraction cell；4, boiler；5, air pump；6, air accumulator；7, water filling port； 8, electrothermal tube；9, spiral cover；10, temperature probe；11, pressure relief mechanism；12, pressure release passage；13, spool；14, pressure release spring；15, on Chuck；16, handle；17, funnel cup body；18, mounting base；19, support spring；20, end socket；21, interior cup body；22, gasket ring；23, First sealing ring；24, compact heap；25, the second sealing ring；26, fixing sleeve；27, fixed block；28, fixture block；29, coffee capsule； 30, feed liquor space；31, raised；32, liquid outlet；33, attachment base；34, notch；35, the first connecting tube；36, the second connecting tube； 37, control valve；38, valve body；39, fixing seat；40, the first buckle；41, the second buckle；42, tubular body；43, connector；44, valve Mouthful；45, valve rod；46, valve circle；47, spring；48, push rod；49, knob；50, sliding block；51, sliding slot；52, helicla flute；53, nose bar； 54, elastic portion；55, slide bar；56, slippage slot；57, groove；58, elastic cushion；59, closing piece；60, fixture block；61, clip slot；62, it guides Inclined-plane；63, guiding surface；64, positioning convex point.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Embodiment one:

A kind of air pump booster-type capsule coffee machine, as shown in Figure 1, 2, including shell 1, power supply 2, extraction cell 3 and boiler 4. Power supply 2 is dismountable lithium battery, which is equipped with the power interface for cooperating with the power supply 2.Power supply 2 is used for pot Furnace 4 and the power supply of other powered devices.

As shown in figure 3, being additionally provided with air accumulator 6 and the air pump 5 for pressurizeing to air accumulator 6 in shell 1, air pump 5 is to live Plug pump；Control valve 37 is connected at the gas outlet of air accumulator 6, the control valve 37 is connect by the first connecting tube 35 with boiler 4, Boiler 4 is connect by the second connecting tube 36 with extraction cell 3.First connecting tube 35, the second connecting tube 36 are preferably Teflon Pipe.

As illustrated in figures 4-5, spiral electrothermal tube 8 is equipped with inside the boiler 4, the top of boiler 4 is equipped with spiral cover 9, pot 4 bottom of furnace is equipped with temperature probe 10 for detecting temperature, and temperature probe 10 is connect with the temperature indicator for being set to shell 1.Pot The junction of furnace 4 and spiral cover 9 is equipped with pressure relief mechanism 11, and pressure relief mechanism 11 includes being set on 4 wall of boiler to let out with external communication Pressure passageway 12 slidably connects spool 13 in pressure release passage 12, is connected on spool 13 and it is promoted to open letting out for pressure release passage 12 Pressing spring 14；Spool 13 and spiral cover 9 contradict, and when the spiral cover 9 screws, spiral cover 9 pushes spool 13 to close pressure release passage 12；Instead It, when spiral cover 9 is unscrewed, under the action of pressure release spring 14, spool 13 is bounced, so that pressure release passage 12 is opened.

As shown in figs 6-8, control valve 37 includes valve body 38, fixing seat 39, opening device；Valve body 38 is fixedly connected on shell In 1, fixing seat 39 is connect with valve body 38 by the first buckle 40, and fixing seat 39 is connected with the first connecting tube 35.Valve body 38 includes Tubular body 42 and the connector 43 for being connected radially to tubular body 42, connector 43 are connect with air accumulator 6.It is set in tubular body 42 There is valve port 44, valve port 44 is located at connector 43 towards the side of fixing seat 39, valve rod 45 is connected between fixing seat 39 and valve port 44, Valve circle 46 is connected on valve rod 45, valve circle 46 is rubber system sealing ring；It is connected between fixing seat 39 and valve rod 45 and drives valve circle The spring 47 of 46 closing valve ports 44；

Opening device includes the push rod 48 being slidably connected in tubular body 42, and push rod 48 is located at connector 43 backwards to valve port 44 Side；Valve rod 45 passes through valve port 44 and push rod 48 contradicts；Opening device further includes the knob 49 that rotation is connected on shell 1, Knob 49 is equipped with the inner wall that the second buckle 41 clasps shell 1, so that knob 49 can only be rotated in fixed position；Knob 49 is located at shell Side in body 1 is equipped with sliding block 50, and push rod 48 is equipped with sliding slot 51, and push rod 48 cooperatively forms axial direction by sliding slot 51 and sliding block 50 Sliding Structures；Sliding block 50 and sliding slot 51 are two pairs, and are symmetrical set.Tubular body 42 is equipped with helicla flute 52, and push rod 48 connects It is connected to the nose bar 53 being slidably connected in helicla flute 52.

The process of opening controlling valve 37 is as follows: rotation is located at the knob 49 on shell 1, and knob 49 passes through sliding block 50 and push rod The cooperation of 48 upper hopper chutes 51 drives push rod 48 to rotate；When push rod 48 rotates, nose bar 53 is moved along helicla flute 52, due to nose bar 53 It is connect with push rod 48, to drive push rod 48 mobile to 44 place side of valve port, push rod 48 presses valve rod 45 and valve rod 45 is overcome The elastic force of spring 47 is mobile to 39 place side of fixing seat, and since valve circle 46 is connected on valve rod 45, valve port 44 is opened at this time.It closes The process of valve closing mouth 44 reversely rotates knob 49, and under the action of spring 47, valve rod 45 is mobile to 48 place side of push rod, makes It obtains valve circle 46 and closes valve port 44.

As shown in figure 8, the part that push rod 48 is used to connect nose bar 53 is the only fixed elastic portion in long strip in one end 54, nose bar 53 can be pressed into tubular body 42 by the deformation of elastic portion 54, mobile putter 48 makes nose bar 53 be located at spiral shell When in spin slot 52, nose bar 53 is embedded in helicla flute 52 under the reset response of elastic portion 54, thus be more convenient for push rod 48 and tubulose sheet Body 42 is assembled.

As shown in figs. 9-11, the composition of extraction cell 3 includes upper chuck 15, and upper chuck 15 is fixedly installed in shell 1；Further include Be connected with the funnel assemblies of handle 16, funnel assemblies be followed successively by from the bottom to top funnel cup body 17, mounting base 18, support spring 19, End socket 20, interior cup body 21, gasket ring 22, the first sealing ring 23, compact heap 24, the second sealing ring 25.It is set at the center of upper chuck 15 It is equipped with water filling port 7, the second connecting tube 36 is connected to water filling port 7.Upper chuck 15 is connected with fixing sleeve 26, and the inner wall of fixing sleeve 26 is set There is fixed block 27, the outer wall upper edge of the funnel cup body 17 is equipped with fixture block 28, when fixture block 28 and the dislocation of fixed block 27, funnel Cup body 17 can be mobile to 15 direction of upper chuck, and when 28 position of fixture block is higher than fixed block 27, rotational handle 16 makes fixture block 28 It contacts on fixed block 27, so that funnel cup body 17 be fixed.

As shown in Figure 10, when funnel assemblies and upper chuck 15 are fixed relatively, extraction is constituted between interior cup body 21 and upper chuck 15 Take room 3.At this point, 3 lower portion of extraction cell is for placing coffee capsule 29,3 upper portion of extraction cell there are feed liquor space 30, into Liquid space 30 stays the recessed portion set to constitute by upper chuck 15, and the bottom of extraction cell 3 is equipped with for contradicting with coffee capsule 29 Protrusion 31, protrusion 31 setting so that between 3 bottom of 29 bottom of coffee capsule and extraction cell formed indwelling space.And at this time The edge of coffee capsule 29 contacts on gasket ring 22, and gasket ring 22 is rubber ring, has elasticity, can support the upper of coffee capsule 29 Edge and upper chuck 15 support patch.

As shown in Figure 10, the first sealing ring 23 is used to support patch with 29 side wall of coffee capsule, and compact heap 24 is threadedly connected to interior The inner wall of cup body 21 simultaneously presses on the first sealing ring 23.Second sealing ring 25 is then embedded at the annular groove of interior 21 lateral wall of cup body In, for forming sealing between upper chuck 15.

As shown in Figure 10, the bottom (the namely bottom of extraction cell 3) of interior cup body 21 is equipped with liquid outlet 32, interior cup body 21 Bottom wall is equipped with externally threaded attachment base 33.Mounting base 18 is threadedly connected to attachment base 33, and support spring 19 is installed on mounting base Between 18 and end socket 20, end socket 20 is then contacted at liquid outlet 32.As shown in figure 11, it is equipped on the downside of mounting base 18 for coffee flow Notch 34 out.

The use state of the present embodiment is as follows: when extracting to coffee capsule 29, coffee capsule 29 being caught in extraction cell 3, boiler 4 heats water, and air pump 5 pressurizes to air accumulator 6.After water is heated to predetermined temperature, by turning knob, So that control valve 37 is opened；The compressed air of air accumulator 6 is injected in boiler 4 by the first connecting tube 35, by the hot water in boiler 4 Extraction cell 3 is pressed into through the second connecting tube 36.Hot water first fills up feed liquor space 30, and under pressure, hot water is in coffee capsule 29 Whole cross section on by coffee capsule 29 so that hot water is fully contacted with coffee capsule 29, to be obtained by extraction more For aromatic coffee liquid.

Embodiment two: it is illustrated in conjunction with Figure 12-18.

Difference with embodiment one is that as shown in figs. 12-15, the side wall of valve rod 45 is radially connected several slide bars 55, The inner wall of valve body 38 is equipped with the slippage slot 56 slid for slide bar 55；Push rod 48 is equipped with groove towards the end of 45 side of valve rod 57；The end of valve rod 45 is equipped with elastic cushion 58 made of rubber material.Valve rod 45 contacts at 57 bottom of groove by elastic cushion 58. 57 inner sidewall of groove is equipped with closing piece 59；Lateral wall of the valve rod 45 towards 48 one end of push rod is radially connected the fixture block being arranged in pairs 60, the clip slot 61 for clamping closing piece 59 is formed between two fixture blocks 60.

It rotates in push rod 48 so that nose bar 53 in helicla flute 52 when moving, closing piece 59 is located at the outside of clip slot 61, this mistake The axial sliding of valve rod 45 is not limited in journey, limit of the rotation of valve rod 45 by the phorogenesis in slippage slot 56 of slide bar 55 System.

When nose bar 53 will slide onto the one end of helicla flute 52 far from valve rod 45, as shown in figs. 16-17, push rod 48 is rotated So that closing piece 59 contacts at the inlet of clip slot 61, valve circle 46 is substantially mobile with valve rod 45 at this time and contacts at valve port 44 Place is further continued for turning knob 49 at this time and push rod 48 is made to turn to bottom, nose bar 53 and end of the helicla flute 52 far from 45 one end of valve rod Portion contradicts；Closing piece 59 is smoothly squeezed into clip slot 61.

As shown in figs. 16-17, the inlet of clip slot 61 is equipped with lead-in chamfered 62, and closing piece 59 is used for the end into clip slot 61 Equipped with the guiding surface 63 cooperated with lead-in chamfered 62；Valve rod 45 is contradicted by elastic cushion 58 and push rod 48, in elastic cushion 58 Under effect, the axial position of closing piece 59 and the axial position of clip slot 61 can slightly generate dislocation；The position of clip slot 61 slightly position Side where valve port 44.Under the action of guiding surface 63 and lead-in chamfered 62, closing piece 59 can squeeze into clip slot 61 by force In so that elastic cushion 58 is compressed, while but also valve rod 45 is tensed to 48 side of push rod, allow valve circle 46 more It closely is adjacent to valve port 44, so that the sealing effect at valve port 44 can also be effectively ensured while 45 position of locking valve rod；It reduces Clearance leakage.

After closing piece 59 enters clip slot 61, limited by fixture block 60, so that the position of valve rod 45 is locked, 45 nothing of valve rod Method continues to move axially, to the position of valve circle 46 also be locked, so that valve port 44 is in closed state.So that air accumulator 6 can store bigger pressure, and not have to worry to cause because pressure store is excessive so that air pressure overcomes 47 elastic force of spring to act on The problem of 44 seal failure of valve port.Therefore, bigger pressure can be provided for the extraction of coffee capsule 29.

As shown in figure 18, positioning convex point 64 is equipped at inner wall of the helicla flute 52 far from 45 one end of valve rod, nose bar 53 is moved to Positioning convex point 64 is crossed when the end.When nose bar 53 is moved to the one end of helicla flute 52 far from valve rod 45, valve rod 45 is in quilt at this time The state that closing piece 59 locks, setting positioning convex point 64 can be defined 53 position of nose bar, so that turning knob 49 must have There is the power that nose bar 53 can be made to cross positioning convex point 64, so as to avoid accidentally touching knob 49, push rod 48 is caused to be rotated； With fool proof effect.

The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical Within novel protection scope.

Claims (10)

1. a kind of air pump booster-type capsule coffee machine, including shell (1), power supply (2), boiler (4) and for placing coffee glue The extraction cell (3) of capsule (29)；It is characterized by: the shell (1) is additionally provided with air accumulator (6) and for adding to air accumulator (6) The air pump (5) of pressure is connected with control valve (37) at the gas outlet of the air accumulator (6), and the control valve (37) connects by first Adapter tube (35) is connect with boiler (4), and the boiler (4) is connect by the second connecting tube (36) with extraction cell (3)；

The control valve (37) includes the fixing seat (39) connecting with the first connecting tube (35), the valve body connecting with fixing seat (39) (38), the opening device being connect with valve body (38)；The valve body (38) includes tubular body (42) and is connected radially to tubulose The connector (43) of ontology (42), the connector (43) connect with air accumulator (6)；Valve port is equipped in the tubular body (42) (44), the valve port (44) is located at side of the connector (43) towards fixing seat (39), the fixing seat (39) and valve port (44) it Between be connected with valve rod (45), be connected with valve circle (46) on the valve rod (45), valve circle (46) be rubber system sealing ring；The fixation The spring (47) for driving valve circle (46) closing valve port (44) is connected between seat (39) and valve rod (45)；

The opening device includes the push rod (48) being slidably connected in tubular body (42), and the push rod (48) is located at connector (43) backwards to the side of valve port (44)；The valve rod (45) passes through valve port (44) and push rod (48) and contradicts；The opening device is also Including rotating the knob (49) being connected on shell (1), the knob (49) is located at the side in shell (1) equipped with sliding block (50), the push rod (48) is equipped with sliding slot (51), and the push rod (48) cooperatively forms axis by sliding slot (51) and sliding block (50) To Sliding Structures, the tubular body (42) is equipped with helicla flute (52), and the push rod (48), which is connected with, is slidably connected to spiral Nose bar (53) in slot (52).

2. a kind of air pump booster-type capsule coffee machine according to claim 1, it is characterised in that: under the extraction cell (3) Side section is for placing coffee capsule (29), and there are feed liquor space (30), extraction cell (3) bottoms for extraction cell (3) upper portion Portion is equipped with liquid outlet (32)；The extraction cell (3) is equipped with water filling port (7) in feed liquor space (30) position；The water filling port (7) it is connect with the second connecting tube (36).

3. a kind of air pump booster-type capsule coffee machine according to claim 2, it is characterised in that: the extraction cell (3) Inner sidewall is equipped with the sealing ring for supporting patch with coffee capsule (29) side wall, contradicts on the sealing ring and is connected with compact heap (24).

4. a kind of air pump booster-type capsule coffee machine according to claim 3, it is characterised in that: the compact heap (24) is Annular and outer wall are equipped with external screw thread, and the inner wall of the extraction cell (3) is equipped with internal screw thread, the compact heap (24) and extraction cell (3) Inner thread connection.

5. a kind of air pump booster-type capsule coffee machine according to claim 2, it is characterised in that: the liquid outlet (32) sets There is check valve assembly, the check valve assembly includes end socket (20), mounting base (18) and support spring (19), the support spring (19) it is installed between mounting base (18) and end socket (20), the end socket (20) and liquid outlet (32) contradict；The extraction cell (3) Bottom be equipped with protrusion (31) for contradicting with coffee capsule (29).

6. a kind of air pump booster-type capsule coffee machine according to claim 5, it is characterised in that: the extraction cell (3) Shell (1) bottom is equipped with attachment base (33), and the attachment base (33) is equipped with external screw thread, and the mounting base (18) is equipped with internal screw thread, The mounting base (18) is threadedly coupled with attachment base (33).

7. a kind of air pump booster-type capsule coffee machine according to claim 1, it is characterised in that: boiler (4) screw thread It is connected with spiral cover (9), the boiler (4) is equipped with the pressure relief mechanism (11) that pressure release is carried out when spiral cover (9) rotate；The pressure release Mechanism (11) includes the pressure release passage (12) being set on boiler (4) wall with external communication, sliding in the pressure release passage (12) It is connected with spool (13), the pressure release spring (14) for promoting it to open pressure release passage (12) is connected on the spool (13)；It is described Spool (13) and spiral cover (9) contradict, and when the spiral cover (9) screws, spiral cover (9) pushes spool (13) closing pressure release passage (12).

8. a kind of air pump booster-type capsule coffee machine according to claim 1, it is characterised in that: the side of the valve rod (45) Wall is radially connected to be had several slide bars (55), and the inner wall of the valve body (38) is equipped with the slippage slot slid for slide bar (55) (56)；The push rod (48) is equipped with groove (57) towards the end of valve rod (45) side；The valve rod (45) contacts at groove (57) bottom；Groove (57) inner sidewall is equipped with closing piece (59)；The lateral wall of the valve rod (45) towards push rod (48) one end It is radially connected to have the fixture block (60) being arranged in pairs, the clip slot (61) for clamping closing piece (59) is formed between two fixture blocks (60)； When the nose bar (53) slides onto the one end of helicla flute (52) far from valve rod (45), closing piece (59) is transferred to clip slot with push rod (48) (61) in.

9. a kind of air pump booster-type capsule coffee machine according to claim 8, it is characterised in that: clip slot (61) enter Lead-in chamfered (62) are equipped at mouthful, the end that the closing piece (59) is used to enter clip slot (61) is equipped with to be cooperated with lead-in chamfered (62) Guiding surface (63)；The valve rod (45) is equipped with elastic cushion (58) towards the end of push rod (48).

10. a kind of air pump booster-type capsule coffee machine according to claim 9, it is characterised in that: the helicla flute (52) Positioning convex point (64) are equipped at inner wall far from valve rod (45) one end, nose bar (53) crosses positioning convex point when being moved to the end (64).