CN208822412U

CN208822412U - Lock brewing apparatus and beverage brewing device and beverage machine

Info

Publication number: CN208822412U
Application number: CN201721290730.5U
Authority: CN
Inventors: 邝坚
Original assignee: Guangdong Midea Consumer Electric Manufacturing Co Ltd
Current assignee: Guangdong Midea Consumer Electric Manufacturing Co Ltd
Priority date: 2017-09-30
Filing date: 2017-09-30
Publication date: 2019-05-07
Anticipated expiration: 2027-09-30

Abstract

The utility model discloses a kind of locking brewing apparatus and beverage brewing device and beverage machine, locking brewing apparatus includes pedestal, drain punctures pipe and piston, the plunger shaft with open end and closed end is formed in pedestal, piston, which seals slidingly against, to be arranged in plunger shaft, and the pressure medium chamber with opening is formed with closed end, drain punctures pipe and is arranged on the surface towards open end of piston, it is provided on piston and punctures the feed pathway that pipe communicates with drain, piston can move to locked position from open position under the intracavitary pressure medium of pressure medium, liquid-supplying system supplies liquid to pressure medium chamber by opening, so that the pressure increase that pressure medium is intracavitary, and piston is driven to move from open position towards locked position to lock the drink capsule placed in brewing cavity, the locking brewing apparatus of the utility model does not need and shows There is the same pressing operation locking brewing apparatus of technology to lock drink capsule, the beverage brewing device reliable working performance.

Description

Locking brewing device, beverage brewing device and beverage machine

Technical Field

The utility model belongs to the domestic appliance field specifically, relates to a locking brewing device, a device and a drink machine are made to beverage.

Background

With the improvement of life quality of people, the popularity of coffee makers is higher and higher, for example, when the espresso coffee is brewed by using a coffee brewing machine, because of high water pressure, a top cover sealing ring of a brewing cavity where a coffee capsule is located needs to have enough downward pressure (usually 300 kilograms of pressure) to maintain good sealing performance.

For this reason, many of the current capsule beverage machines employ a bore pressure brewing structure that requires an operator to manually press a handle to move a locking structure toward the beverage capsule to lock the beverage capsule. However, such manual operation is complicated in structure, high in cost, and difficult to disassemble. In addition, when the operator presses the handle, the pressing force is large, which is inconvenient to operate.

In view of this, how to seek a new brewing locking mechanism which is economical, practical, reliable in working performance and easy to operate becomes a new development direction.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough or defect among the prior art, the utility model provides a device is made in locking, this locking is made device working property reliable, and the user need not press the operation and can realize the convenient reliable locking of beverage capsule promptly.

In order to achieve the above object, the present invention provides a locking and brewing device for a beverage machine, the locking and brewing device comprises a seat body for mounting a material cup, a liquid guiding puncture tube for puncturing a beverage capsule in the material cup and delivering liquid, and a circular or elliptical piston for locking the beverage capsule in the material cup, wherein a circular or elliptical piston cavity having an open end and a closed end is formed in the seat body, the piston is slidably and hermetically disposed in the piston cavity and forms a pressure medium cavity with an opening together with the closed end, the liquid guiding puncture tube is disposed on the surface of the piston facing the open end, and a liquid inlet channel communicated with the liquid guiding puncture tube is disposed on the piston, wherein the piston has an open position for keeping the liquid guiding puncture tube away from the beverage capsule and a locking position for locking the beverage capsule and making the liquid guiding puncture tube puncture the locking position of the beverage capsule, wherein the piston is movable from the open position to the locked position under the medium pressure in the pressure medium chamber.

By the technical scheme, the piston is slidably and hermetically arranged in the piston cavity and can move from the opening position to the locking position under the medium pressure in the pressure medium cavity, so that in the opening position, a user can place a beverage capsule to be used in the brewing cavity at the moment due to the fact that the liquid guide puncture pipe is far away from the brewing cavity, then, for example, an external liquid supply system supplies liquid to the pressure medium cavity through the opening, the pressure in the pressure medium cavity is increased, the piston is driven to move from the opening position to the locking position, in the locking position, the piston can lock the beverage capsule placed in the brewing cavity, and meanwhile, the liquid guide puncture pipe can puncture the beverage capsule placed in the brewing cavity and supply the liquid to configure the beverage. After the beverage is prepared, the external liquid supply system stops supplying liquid, for example, the medium in the pressure medium cavity flows back and further drives the piston to return to the original position, or the piston returns to the original position under the action of the return elastic member to drive the medium in the pressure medium cavity to flow back, so as to return to the open position, so that the user can take out the used beverage capsule, and if necessary, the user can place a new beverage capsule again to repeat the operation process. Therefore, the utility model discloses a locking brewing device, user only need get and put the beverage capsule to need not press the locking with prior art and make the device in order to lock the beverage capsule, consequently, this beverage brewing device working property is reliable, and the user need not press the operation and can realize the convenient reliable locking of beverage capsule promptly.

Further, the liquid inlet passage is formed by a pipe member located in the pressure medium chamber, and the closed end is formed with the opening and an orifice connecting the pipe member.

In addition, the closed end is a plug body which is detachably assembled on the base body.

Still further, the piston includes a stopper body and a rod body as the pipe member, wherein an axial hollow passage in the rod body serves as the liquid inlet passage, and the rod body is inserted into and slidably and sealingly fitted to the orifice.

Further, the closed end is formed with a projection projecting toward the pressure medium chamber, the projection being formed with the opening extending axially and the orifice extending axially, wherein the rod body projects into and is slidably fitted in the orifice in a sealing manner.

In addition, a reset elastic piece used for enabling the piston to return to the opening position is arranged between the piston and the seat body, wherein in the locking position, the reset elastic piece is in an energy storage state.

Further, the closed end is formed with a protruding portion protruding toward the pressure medium chamber, a guide space is formed between the protruding portion and a side wall of the pressure medium chamber, the piston is formed with a guide wall extending toward the pressure medium chamber, and the guide wall is located in the guide space.

Furthermore, the piston is provided with a guide wall extending towards the pressure medium cavity, a radial extending part is formed on the outer side surface of the guide wall, an axial groove is formed on the inner side surface of the cavity wall of the piston cavity, the radial extending part is located in the axial groove and can move along the axial direction of the axial groove, and the reset elastic part is arranged between the radial extending part and the axial groove.

In addition, a beverage capsule sealing gasket is arranged on the surface of the piston facing the opening end, the beverage capsule sealing gasket comprises an outer convex arc-shaped surface used for abutting against a sealing film of a beverage capsule and an elastic skirt edge arranged around the outer convex arc-shaped surface and used for pressing the periphery of the beverage capsule, and the liquid guide puncture pipe penetrates out of the outer convex arc-shaped surface.

Further, the liquid guide puncture pipe penetrates out of the center of the outer convex arc-shaped surface.

In addition, the base body is provided with a guide groove for lateral extraction and insertion of the guide edge of the material cup at the opening end of the piston cavity.

Further, the tail end of the guide groove is provided with a magnet capable of adsorbing the guide edge of the material cup.

Furthermore, the utility model provides a beverage brewing device, including the material cup that has the chamber of making a brew and the aforesaid arbitrary locking make the device, wherein, the material cup is installed on the opening end, the piston can move to the locking position from opening the position under the medium pressure of pressure medium intracavity the opening position, it punctures the pipe and keeps away from to lead liquid make the chamber locking position, it punctures the pipe and stretches into to lead liquid make the intracavity in order to puncture the beverage capsule of placing making the intracavity.

Therefore, as described above, the utility model discloses a beverage brewing device, the user only need get and put the beverage capsule, and need not press down the operation locking with the locking beverage capsule with prior art, consequently, this beverage brewing device working property is reliable, and the user need not press down the operation and can realize the convenient reliable locking of beverage capsule.

Further, in one configuration of the material cup, a dial and a support plate for placing a beverage capsule are arranged in the brewing chamber along the height direction of the cup body of the material cup from bottom to top, the dial is fixedly arranged relative to the cup body and has an upwardly extending puncturing needle, wherein the support plate can move up and down along the height direction of the cup body to switch between an initial position for taking and placing the beverage capsule and the locking position for puncturing the beverage capsule, wherein in the locking position, the puncturing needle penetrates through the support plate for puncturing the beverage capsule placed on the support plate.

Further, in the initial position, the lancet is positioned below the support plate.

Further, the support plate is connected with the dial and can slide up and down relative to the dial.

Furthermore, an elastic element is arranged between the supporting plate and the dial, wherein in the locking position the elastic element is in an energy storage state.

Furthermore, the puncture needle is positioned in the middle of the dial, and the elastic part is a spring sleeved on the puncture needle.

Further, the dial comprises a cylinder part extending downwards, the puncture needle penetrates through the mounting hole in the bottom wall of the cylinder part at the outer part of the cylinder part, extends through the cylinder part and then protrudes out of the upper surface of the dial, wherein an annular space is formed between the puncture needle and the cylinder part, and the spring is positioned in the annular space.

In addition, a guide hole is formed in the dial, a guide arm is formed on the support plate, and a limiting hook is formed at the front end of the guide arm, wherein the guide arm is fitted in the guide hole, and the limiting hook abuts against the lower surface of the dial at the initial position.

In addition, an axially extending drainage groove is formed on the outer surface of the puncture needle.

In addition, a guide groove extending in the radial direction is formed on the upper surface of the dial and/or the upper surface of the supporting plate.

Finally, the utility model provides a beverage machine, including liquid supply system and the aforesaid arbitrary beverage brewing device, wherein, the liquid supply system with the opening with the inlet channel intercommunication, the liquid supply system passes through earlier the opening to the pressure medium chamber supplies liquid, makes the piston is followed open the position and move to the locking position, lead in the liquid punctures the pipe and pierces to make in the beverage capsule that the intracavity was placed, and the liquid supply system to the inlet channel supplies liquid.

Thus, as described above, in use, a user may control the liquid supply system to supply liquid to the pressure medium chamber through the opening first, such that the pressure in the pressure medium chamber increases and drives the piston from the open position towards the locked position, in which the piston will lock a beverage capsule placed in the brewing chamber, and in which the liquid-conducting piercing tube will pierce the beverage capsule placed in the brewing chamber and supply liquid to dispense a beverage. After the beverage is prepared, the external liquid supply system stops supplying liquid, for example, the medium in the pressure medium cavity flows back and further drives the piston to return to the original position, or the piston returns to the original position under the action of the return elastic member to drive the medium in the pressure medium cavity to flow back, so as to return to the open position, so that the user can take out the used beverage capsule, and if necessary, the user can place a new beverage capsule again to repeat the operation process. Therefore, the utility model discloses a beverage brewing device, user only need get and put the beverage capsule to need not press the operation locking with prior art and make the device in order to lock the beverage capsule, consequently, this beverage brewing device working property is reliable, and the user need not press the operation and can realize the convenient reliable locking of beverage capsule promptly.

Further, the liquid supply system comprises a control valve, the opening and the liquid inlet channel are both communicated with the control valve, and a pipeline for communicating the control valve with the liquid inlet channel is provided with a back pressure valve, wherein when liquid is supplied to the pressure medium cavity through the control valve and the opening, the back pressure valve is closed, and when the pressure borne by the back pressure valve reaches an opening value at the locking position, the back pressure valve is opened to supply liquid to the liquid inlet channel.

In addition, a four-way valve is connected to an outlet end of a water pump of the liquid supply system, wherein the liquid supply system comprises the water pump and a water tank, a control valve is the four-way valve, the four-way valve is arranged at an outlet end of the water pump, three outlets of the four-way valve are respectively communicated with the opening, the liquid inlet channel and the water tank of the liquid supply system, and an electromagnetic valve is arranged between the four-way valve and the water tank, wherein when the water pump operates to supply liquid, the electromagnetic valve is closed; when the water pump stops running, the electromagnetic valve is opened, and liquid in the pressure medium cavity flows back to the water tank through the electromagnetic valve.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic view of a beverage brewing apparatus according to a preferred embodiment of the present invention, wherein the cup is withdrawn from the locking brewing apparatus;

FIG. 2 is a schematic structural view of the beverage brewing apparatus of FIG. 1, with the piston in the open position;

FIG. 3 is a schematic structural view of the beverage brewing apparatus of FIG. 1, wherein the piston is in a locked position;

FIG. 4 is another schematic structural view of a locking brewing device of a beverage brewing apparatus according to a preferred embodiment of the present invention, wherein the cup is not shown;

FIG. 5 is another schematic structural view of a cup of the beverage brewing apparatus according to the preferred embodiment of the present invention;

FIG. 6 is an exploded view of FIG. 5, without the beverage capsule shown;

FIG. 7 is a schematic structural view of the locking brew device of FIG. 4 and the bowl assembly of FIG. 5, with the piston in the open position and the support plate in the home position;

FIG. 8 is a schematic structural view of the locking brewing device shown in FIG. 4 and the cup assembly shown in FIG. 5, wherein the piston and the support plate are in a locked position;

FIG. 9 is an exploded view of the beverage brewing apparatus shown in FIG. 7 or FIG. 8;

FIG. 10 is a schematic view of a preferred embodiment of the beverage maker according to the present invention, wherein the beverage brewing device is the beverage brewing device shown in FIGS. 7 and 8;

fig. 11 is a schematic structural view of a beverage maker according to a preferred embodiment of the present invention, wherein the beverage brewing device is the beverage brewing device shown in fig. 1 to 3.

Description of reference numerals:

1-brewing chamber, 2-material cup, 3-seat body, 4-liquid guide puncture tube, 5-piston, 6-open end, 7-closed end, 8-piston chamber, 9-opening, 10-pressure medium chamber, 11-liquid inlet channel, 12-hole opening, 13-plug body, 14-rod body, 15-bulge, 16-reset elastic element, 17-guide space, 18-guide wall, 19-radial projection, 20-axial groove, 21-beverage capsule sealing gasket, 22-convex arc surface, 23-elastic skirt, 24-guide groove, 25-needle disc, 26-support plate, 27-puncture needle, 28-elastic element, 29-tube part, 30-annular space, 31-guide hole, 32-guide arm, 33-limit hook, 34-drainage groove, 35-drainage groove, 36-beverage capsule, 37-back pressure valve, 38-water pump, 39-four-way valve, 40-water tank and 41-electromagnetic valve.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1-4 and fig. 7 and 8, the present invention provides a locking brewing apparatus, which comprises a base body 3 for mounting a cup, a liquid guiding puncture tube 4 for puncturing a beverage capsule in the cup and delivering liquid, and a circular or elliptical piston 5 for locking the beverage capsule in the cup, wherein a circular or elliptical piston chamber 8 having an opening end 6 and a closing end 7 is formed in the base body 3, the circular or elliptical piston chamber 8 and the circular or elliptical piston 5 are used, the locking brewing apparatus can be easily formed, the production cost is reduced, the piston 5 is slidably and hermetically disposed in the piston chamber 8 and forms a pressure medium chamber 10 having an opening 9 with the closing end 7, the opening 9 is used for medium flowing into the pressure medium chamber 10 or flowing out from the pressure medium chamber 10, the liquid guiding puncture tube 4 is disposed on the surface of the piston 5 facing the opening end 6, and the piston 5 is provided with a liquid inlet channel 11 which is communicated with the liquid guide puncture tube 4, wherein the piston 5 has an open position which makes the liquid guide puncture tube 4 far away from the beverage capsule and a locked position which locks the beverage capsule and makes the liquid guide puncture tube 4 puncture the beverage capsule, wherein the piston 5 can move from the open position to the locked position under the medium pressure in the pressure medium chamber 10.

In this solution, the piston 5 is slidably sealingly arranged in the piston chamber 8 and is movable under a medium pressure, such as a liquid pressure or a gas pressure, in the pressure medium chamber 10 from an open position, in which a user can place a beverage capsule to be used in the brewing chamber 1 at that moment, to a locked position, in which the piston 5 will lock a beverage capsule 36 placed in the brewing chamber 1, and in which the liquid-conducting piercing tube 4 will pierce and feed a beverage capsule 36 placed in the brewing chamber 1, for example, by supplying liquid to the pressure medium chamber 10 via the opening 9, such that the pressure in the pressure medium chamber 10 increases and the piston 5 is driven from the open position towards the locked position, to dispense a beverage. After the beverage is dispensed, the external liquid supply system stops supplying liquid, for example, the medium in the pressure medium chamber 10 flows back and further drives the piston 5 to move back, or the piston 5 returns under the action of the return elastic member to drive the medium in the pressure medium chamber 10 to flow back, so as to return to the open position, so that the user can take out the used beverage capsule 36, and if necessary, the user can place a new beverage capsule again to repeat the above operation process. Therefore, the utility model discloses a locking brewing device, user only need get and put the beverage capsule to need not press the locking with prior art and make the device in order to lock the beverage capsule, consequently, this beverage brewing device working property is reliable, and the user need not press the operation and can realize the convenient reliable locking of beverage capsule promptly.

It should be understood that, in the locking brewing device of the present invention, the liquid inlet channel 11 can have a plurality of arrangement forms as long as the external liquid can be guided into the liquid guiding piercing tube 4 through the liquid inlet channel 11, and of course, after the liquid guiding piercing tube 4 pierces the beverage capsule, the liquid will be guided into the beverage capsule to brew the beverage.

For example, in one embodiment, a flow passage can be formed between the piston 5 and the wall of the piston chamber 8, and the flow passage in the piston 5 is always connected to the flow passage in the wall of the piston chamber 8 in the slidable range of the piston 5, or the flow passage in the piston 5 is connected to the flow passage in the wall of the piston chamber 8 only when the piston 5 slides to the locking position, so that the external liquid flows into the catheter tube 4 through the flow passage between the piston 5 and the wall of the piston chamber 8.

Alternatively, in another structure form, for convenience of manufacture, reduction of production cost, and convenience of assembly, it is preferable that, referring to the structure shown in fig. 1 and 4, the liquid inlet passage 11 is formed by a pipe member located in the pressure medium chamber 10. For example, a hollow stem 14 as shown in fig. 1 and 4, or in other constructions, a hose or bellows connection may be used, for example, with one end connected to a side or end wall of the pressure medium chamber 10 and the other end connected to a port on the piston 5 communicating with the catheter puncture tube 4, whereby the hose or bellows is located in the pressure medium chamber 10 without affecting the slidable movement of the piston.

In addition, in order to reduce the occupation of the inner space of the pressure medium chamber 10 by the hose or bellows and facilitate the enlargement of the slidable stroke of the piston 5, it is preferable that the opening 9 is formed at the closed end 7 as in the structure shown in fig. 1 and 4, so that the slidable stroke of the piston 5 can be significantly elevated with respect to the opening 7 formed at the side wall of the pressure medium chamber 10, and of course, the opening 7 can be formed at the side wall of the pressure medium chamber 10, if necessary. Similarly, the closed end 7 is formed with a bore 12 for connection to a pipe element, so that a hose, in particular a bellows, can be connected to the bore 12 when the pressure medium chamber 10 is connected to the bore, so that the bellows will be compressed and superposed when the piston 5 is in the open position and will be stretched out when the piston 5 is moved towards the locking position.

Of course, the opening 12 may be used as a liquid inlet for the liquid inlet channel 11, for example, in the configuration shown in fig. 1 and 4, the rod 14 does not protrude through the opening 12; alternatively, the orifice 12 may be used as a passage, for example, the rod 14 may extend from within the pressure medium chamber 10 through the orifice 12 to outside the pressure medium chamber 10, for example, the rod 14 may extend into and be slidably and sealingly fitted in the orifice 12, such that the orifice 12 may be used only as a guide and support passage for the rod 14 when the piston 5 is slid.

The closed end 7 may be formed integrally with the housing 3 or, preferably, the closed end 7 and the housing 3 may be detachably assembled for ease of manufacture and assembly, for example, the closed end 7 may be formed by another piston body, in other words, the closed end 7 is a plug body detachably assembled with the housing 3.

Additionally, the utility model discloses an among the locking brewing device, piston 5 can only be a cock body that does not set up the body of rod, as long as the cock body can slide in order to adjust the position steadily and reliably in pressure medium chamber 10, at this moment, can adopt the bellows, for example, the one end of bellows is connected in drill way 12, and the other end is connected in the interface on the cock body, and the drain pierces through pipe 4 then communicates with each other with the interface.

Alternatively, in another form of construction, the piston 5 may comprise a stopper 13 and a rod 14 as the above-mentioned tube, as shown in fig. 1 and 4, and an axial hollow passage in the rod 14 may be used as the inlet passage 11. At this point, rod 14 may be passed out of port 12, or as shown below, rod 14 may be a sliding bottom seal fit within port 12 when the axial length of port 12 is long. Thus, this mating relationship of the aperture 12 and the stem 14 provides support and guidance for sliding movement of the plug body 13.

Further, in order to facilitate the connection of the rod body 14, it is preferable that the closed end 7 is formed with a projection 15 projecting toward the pressure medium chamber 10 as shown in fig. 1 and 4, and the projection 15 is formed with an axially extending opening 9 and an axially extending orifice 12, wherein the rod body 14 projects into and is slidably and sealingly fitted in the orifice 12 as shown in fig. 2 and 3, and fig. 7 and 8.

In addition, as indicated above, after the beverage has been dispensed, the piston 5 needs to be moved from the locking position to the open position, so that the medium, e.g. liquid, in the pressure medium chamber 10 can flow back, thereby sucking back the piston 5 to return to the open position;

alternatively, a return elastic element 16 may be connected to the piston 5, and the return elastic element 16 may drive the piston 5 to return, for example, a return elastic element 16 for enabling the piston 5 to return to the open position is arranged between the piston 5 and the seat body 3, wherein, in the locked position, the return elastic element 16 is in the energy storage state. When the supply of fluid in the pressure medium chamber 10 is stopped, the pressure in the pressure medium chamber 10 will decrease, and at this time, the elastic restoring member 16 releases the elastic energy to drive the piston 5 to return, thereby further driving the fluid in the pressure medium chamber 10 to flow back.

Further, as shown in fig. 1 to 4, in order to further improve the reliability of the sliding of the piston 5, it is preferable that the closed end 7 is formed with a protrusion 15 protruding toward the pressure medium chamber 10, a guide space 17 is formed between the protrusion 15 and the side wall of the pressure medium chamber 10, the piston 5 is formed with a guide wall 18 extending toward the pressure medium chamber 10, such as an annular guide wall 18, and the guide wall 18 is located in the guide space 17, so that when the piston 5 slides up and down, the guide wall 18 will move axially in the guide space 17 to improve the stability and reliability of the sliding of the piston 5.

Further, in order to avoid that the return spring 16 is arranged to take up space in the piston chamber 8, it is preferred that, as shown in fig. 3, 8 and 9, the piston 5 is formed with a guide wall 18 extending toward the pressure medium chamber 10, an outer side surface of the guide wall 18 is formed with a radial projection 19, an inner side surface of the chamber wall of the piston chamber 8 is formed with an axial groove 20, the radial projection 19 is located in the axial groove 20 and is capable of moving in the axial direction of the axial groove 20, and between the radial projection 19 and the axial groove 20 a return elastic element 16, for example a spring, is provided, which, in this way, in the locking position, the return spring 16 will be compressed, as in the arrangement of fig. 3 and 8, the spring being connected between the radial projection 19 and the underside of the axial recess 20, alternatively, the return spring 16 will be stretched when the spring is connected between the radial protrusion 19 and the upper side of the axial groove 20.

In addition, in order to further enhance the locking effect on the beverage capsule and facilitate easy penetration of the liquid-conducting piercing tube 4 into the beverage capsule, it is preferred that, as shown in fig. 2 and 3, and 4, 7 and 8, the surface of the piston 5 facing the open end 6 is provided with a beverage capsule sealing gasket 21, the beverage capsule sealing gasket 21 comprising an outer convex arc surface 22 for abutting a sealing membrane of the beverage capsule and an elastic skirt 23 arranged around the outer convex arc surface 22 for pressing the periphery of the beverage capsule, wherein the liquid-conducting piercing tube 4 penetrates out of the outer convex arc surface 22, preferably out of the center of the outer convex arc surface 22, or, alternatively, can penetrate out of the eccentricity of the outer convex arc surface 22. Thus, in the locked position, the elastic skirt 23 will press the circumferential edge of the beverage capsule to achieve a more reliable locking of the beverage capsule, while the outer convex arc-shaped surface 22 will abut against the sealing membrane of the beverage capsule to make the sealing membrane in a taut state, thereby making it easier to reliably position the beverage capsule.

In addition, in the locking brewing device of the present invention, in order to facilitate taking and placing the beverage capsule, it is preferable that the locking brewing device and the material cup 2 are detachably assembled, for example, as shown in fig. 1 and 4, the seat body 3 is formed with a guide groove 24 for lateral extraction and insertion of the guide edge of the feed cup 2 at the open end 6 of the piston chamber 8. Thus, as shown in fig. 1, the user can place the beverage capsule in the brewing chamber 1 of the cup 2 and then insert it laterally along the guide 24, so as to fit the cup 2 into the locking brewing device, as shown in fig. 2 and 3.

Further, for the convenience of using more directly perceivedly receive the assembly of material cup 2 to further confirm that material cup 2 cartridge targets in place, preferably, the utility model discloses a among the locking brewing device, the end of guide way 24 is provided with the magnet that can adsorb the guiding edge of material cup. Therefore, when the material cup 2 is inserted in place quickly, the magnet can adsorb the material cup 2, and a user can feel more intuitively that the material cup 2 is inserted in place.

Of course, on the basis of any of the above, the locking brewing device of the present invention may be used with any suitable type of cup 2, such as, for example, the cup 2 shown in fig. 1-3, in which the brewing chamber 1 of the cup 2 is used only for placing beverage capsules;

additionally, the utility model provides a beverage brewing device, including the material cup 2 that has the brewing chamber 1 and the aforesaid locking brewing device, wherein, material cup 2 is installed on the opening end, and preferably detachably installs on the opening end, and piston 5 can move to the locking position from the open position under the medium pressure in pressure medium chamber 10 open the position, lead liquid and puncture pipe 4 and keep away from brewing chamber 1 locking position, lead liquid and puncture pipe 4 and stretch into in brewing chamber 1 in order to puncture the beverage capsule of placing in brewing chamber.

Of course, the brewing chamber 1 is provided with a drink outlet, which is preferably formed at the lowest position of the brewing chamber in the height direction of the brewing chamber.

In addition, the material cup 2 can adopt the structure shown in fig. 1-3, or alternatively, the material cup 2 shown in fig. 5-8, specifically, as shown in fig. 5 and 6, along the height direction of the cup body of the material cup 2 from bottom to top, that is, along the height direction of the material cup 2, that is, along the height direction of the graphical interface shown in fig. 5, from bottom to top, a dial 25 and a support plate 26 for placing the beverage capsule are arranged in the brewing chamber 1, the dial 25 is fixedly arranged relative to the cup body and has an upwardly extending puncture needle 27, that is, the dial 25 is fixedly arranged, the puncture needle 27 extends upward, and at the same time, the support plate 26 is arranged above the dial 25, wherein the support plate 26 can move up and down along the height direction of the cup body to switch between an initial position for taking and taking the beverage capsule (as shown in fig. 7) and a locking position for puncturing the beverage capsule (as shown in fig. 8), wherein, in the locked position, the piercing needle 27 penetrates the support plate 26 for piercing a beverage capsule placed on the support plate 26.

Thus, after the beverage capsule is used up, the supporting plate 26 moves from the locking position to the initial position, that is, the used beverage capsule is pushed out from the brewing chamber 1, and in the initial position, a gap is formed between the film sealing edge of the beverage capsule 36 and the film sealing supporting surface of the brewing chamber 1, so that a user can conveniently take the beverage capsule, and the problem that the user is burnt and the hands of the user are dirtied by residual beverage when the user directly takes the beverage capsule tightly attached to the film sealing supporting surface of the brewing chamber 1 from the brewing chamber 1 laboriously can be avoided.

Further, after the beverage capsule is naturally placed on the support plate 26, the piercing needles 27 do not naturally pierce the beverage capsule even if the piercing needles 27 protrude from the support plate 26.

In order to facilitate a smooth placement of the beverage capsule 36, it is preferred that in the initial position the spike 27 is located below the support plate 26. In this way, the beverage capsule 36 can then be placed smoothly on the support plate 26 without risking the user's hand being pierced because the piercing needles 27 do not protrude from the support plate 26.

Of course, in the beverage brewing apparatus of the present invention, the dial 25 is fixedly connected to the cup 2, and the support plate 26 is slidably connected to the cup 2; alternatively, in order to simplify the structure, it is effective to use the dial 25 fixedly provided, and preferably, as shown in fig. 5, the support plate 26 is connected to the dial 25 and can slide up and down with respect to the dial 25, for example, as shown in fig. 6, the dial 25 is formed with the guide hole 31, the support plate 26 is formed with the guide arm 32, and the guide arm 32 is fitted in the guide hole 31, so that the support plate 26 can slide up and down with respect to the dial 25 by such sliding fitting of the guide hole 31 and the guide arm 32.

In addition, in order to prevent the supporting plate 26 from falling off, a limiting structure can be formed between the supporting plate 26 and the material cup 2, for example, a limiting boss extends from the side wall of the brewing chamber 1, and the supporting plate 26 abuts against the limiting boss in the initial position;

alternatively, the dial 25 is formed with a guide hole 31, the support plate 26 is formed with a guide arm 32, and a stopper hook 33 is formed at the front end of the guide arm 32, wherein the guide arm 32 is fitted into the guide hole 31, and in the initial position, the stopper hook 33 abuts against the lower surface of the dial 25 to thereby restrict the support plate 26 in the initial position, and particularly, when an elastic member is provided between the support plate 26 and the dial 25 as described below, the elastic member can be returned from the locking position to the initial position by the elastic member to push out the used beverage capsule from the brewing chamber 1.

As indicated above, the return of the support plate 26 after brewing can be achieved in various ways, for example by providing elastic elements between the bottom surface of the support plate 26 and the brewing chamber 1, or, as shown in figure 5, in order to be able to make good use of the fixedly arranged dial 25, in order to simplify the construction, elastic elements are preferably provided between the support plate 26 and the dial 25, wherein in the locked position the elastic elements are in a stored energy state. In this way, after brewing is completed and the above-mentioned locking brewing device is moved from the locked position to the open position, the resilient member will release the resilient force pushing the support plate 26 from the locked position back to the initial position to push the used beverage capsule out of the brewing chamber 1.

Of course, the elastic member can have various configurations, such as shown in FIG. 5, in which spike 27 is located in the middle of dial 25 and elastic member 28 is a spring that fits over spike 27. Thus, as shown in FIG. 8, the spring is in a compressed, stored energy state when the support plate 26 is in the locked position.

Further, in order to facilitate stable and reliable assembly of the spring, as shown in fig. 5 and 8, the dial 25 includes a downwardly extending cylindrical portion 29, the lancet 27 passes through a mounting hole in a bottom wall of the cylindrical portion 29 outside the cylindrical portion 29, extends through the cylindrical portion 29 and protrudes out of an upper surface of the dial 25, wherein an annular space 30 is formed between the lancet 27 and the cylindrical portion 29, and the spring is located in the annular space 30. In this way, the spring can be securely nested and positioned on lancet 27 by the confinement of annular space 30.

In addition, after the needle 27 pierces the beverage capsule 36, the disposed beverage flows out along the needle 27, and therefore, in order to facilitate the outflow of the beverage more easily, it is preferable that an axially extending drainage groove 34 is formed on the outer surface of the needle 27 as shown in fig. 6. Thus, the dispensed beverage will quickly flow out of the drainage channel 34.

In addition, when the beverage flows out, part of the beverage flows onto the supporting plate 26 and the dial 25, so that the upper surface of the dial 25 and/or the upper surface of the supporting plate 26 are formed with the guide grooves 35 extending radially, as shown in fig. 6. In this way, the prepared beverage can rapidly flow along the diversion trench 35, and of course, the upper surface of the dial 25 and/or the upper surface of the supporting plate 26 can extend obliquely downward from the middle to the periphery to increase the flow speed of the beverage.

The utility model provides a drink machine, it is shown with reference to fig. 10 and 11, this drink machine includes the liquid supply system and above-mentioned arbitrary the beverage brewing device, wherein, when using, beverage capsule 36 can hold in making the way chamber 1, liquid supply system and opening 9 and inlet channel 11 intercommunication, liquid supply system supplies liquid to pressure medium chamber 10 through opening 9 earlier for piston 5 moves to locking position from opening the position, at locking position, piston 5 locking beverage capsule, lead liquid puncture pipe 4 and pierce to make the interior beverage capsule 36 of placing of chamber, and liquid supply system supplies liquid to inlet channel 11.

Thus, in the open position, the user can now place the beverage capsule to be used in the brewing chamber 1, since the liquid-conducting piercing tube 4 is remote from the brewing chamber 1, whereupon, for example, an external liquid supply system supplies liquid to the pressure medium chamber 10 via the opening 9, so that the pressure in the pressure medium chamber 10 increases and drives the piston 5 from the open position towards the locked position, in which the piston 5 will lock the beverage capsule 36 placed in the brewing chamber 1, while the liquid-conducting piercing tube 4 will pierce the beverage capsule 36 placed in the brewing chamber 1 and supply liquid for dispensing the beverage. After the beverage is dispensed, the external liquid supply system stops supplying liquid, for example, the medium in the pressure medium chamber 10 flows back and further drives the piston 5 to move back, or the piston 5 returns under the action of the return elastic member to drive the medium in the pressure medium chamber 10 to flow back, so as to return to the open position, so that the user can take out the used beverage capsule 36, and if necessary, the user can place a new beverage capsule again to repeat the above operation process. Therefore, the utility model discloses a drink machine, user only need get and put the beverage capsule to need not press the operation locking with prior art and make the device in order to lock the beverage capsule, consequently, this beverage makes device working property reliable, the user need not press the operation and can realize the convenient reliable locking of beverage capsule promptly.

Of course, the liquid supply system may have various configurations, for example, in one configuration, the liquid supply system includes a separate pipe communicating with the liquid inlet passage 11 and a pipe connecting with the opening 9, and water is supplied by using different water pumps;

alternatively, the liquid supply system may employ a communicating water pump, and it is possible to automatically supply liquid to the pressure medium chamber 10 and automatically start to supply hot water required for dispensing drinks to the liquid inlet channel 11 after a certain degree, so as shown in fig. 10 and 11, the liquid supply system includes a control valve, both the opening 9 and the liquid inlet channel 11 are communicated with the same control valve, and a back pressure valve 37 is provided on a pipeline of the liquid supply system communicated with the liquid inlet channel 11, wherein when liquid is supplied to the pressure medium chamber 10 through the control valve and the opening 9, the liquid is communicated with the back pressure valve 37 through the control valve and the back pressure valve 37, and at this time, the back pressure valve 37 is closed, and when the pressure received by the back pressure valve 37 reaches an open value in a locked position, the back pressure valve 37 is opened to supply liquid to the liquid inlet channel 11.

Thus, when the liquid supply system supplies liquid to the pressure medium cavity 10, another path of liquid will also directly flow to the backpressure valve 37 through the control valve or flow to the backpressure valve 37 after being heated by a heating unit (arranged between the control valve and the backpressure valve 37), at this time, the backpressure valve 37 is closed to bear certain pressure, as the piston 5 moves to the locking position, the pressure borne by the backpressure valve 37 will also reach the opening value of itself, at this time, the backpressure valve 37 is opened, so that hot water heated by the heating unit enters the beverage capsule 36 through the liquid inlet channel 11 and the liquid guide puncture tube 4 to configure beverage.

Of course, the back pressure valve 37 may be closed when the drink preparation is completed and the liquid in the pressure medium chamber 10 is flowing back.

In addition, in order to facilitate the liquid backflow in the pressure medium chamber 10, it is preferable that, as shown in fig. 10 and 11, the liquid in the pressure medium chamber 10 and the liquid for dispensing drinks share a water pump, and at this time, in order to facilitate the liquid backflow in the pressure medium chamber 10, it is preferable that the liquid supply system includes a water pump 38 and a water tank 40, the control valve is a four-way valve, and the four-way valve is disposed at an outlet end of the water pump 38, wherein three outlets of the four-way valve 39 are respectively communicated with the opening 9, the liquid inlet channel 11 and the water tank 40 of the liquid supply system, such as connected by a pipeline, and a solenoid valve 41 is disposed between the four-way valve 39 and the water tank 40, such as connected by a solenoid valve 41 on a pipeline therebetween, wherein; when the water pump 38 stops operating, the solenoid valve 41 is opened, and the liquid in the pressure medium chamber 10 is returned to the water tank 40 through the solenoid valve 41.

Thus, after the beverage capsule is placed, the water pump 38 operates to pump water, three pipelines are formed through the four-way valve 39, the first pipeline flows to the electromagnetic valve 41, the electromagnetic valve 41 is closed, the second pipeline flows to the backpressure valve 37 through the heating unit, the backpressure valve 37 is closed, the third pipeline flows to the opening 9 and enters the pressure medium cavity 10, the piston 5 is pushed to move downwards from the opening position to the locking position to lock the beverage capsule, the liquid guide puncture pipe punctures into the beverage capsule at the locking position, at the moment, the pressure in the pipeline of the second pipeline gradually rises to the opening pressure of the backpressure valve, for example, 3-5BAR, the backpressure valve is opened, the second pipeline injects into the beverage capsule through the liquid guide puncture pipe 4 to start brewing the beverage, after the beverage brewing is finished, the water pump stops working, the electromagnetic valve 41 is opened at the moment, the pipeline of the first pipeline releases pressure, and returns to the water tank 40, the piston is returned to the open position, preferably under the action of the return elastic member 16, such as a spring, completing a work cycle; if desired, the user can remove the used beverage capsule, for example by ejecting the used beverage capsule shell out of the brewing chamber 1, preferably through the support plate, and insert a new beverage capsule, and repeat the above process to brew the beverage.

Of course, the liquid supply system may further comprise a corresponding thermistor, such as an NTC, for sensing a corresponding water problem, e.g. an NTC between the water tank and the heating unit pipe for sensing the inlet water temperature; and the water outlet of the heating unit is provided with an NTC for sensing the water outlet temperature.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. A locking brewing device for a beverage machine, characterized in that the locking brewing device comprises a seat body (3) for mounting a cup, a liquid-conducting piercing tube (4) for piercing and delivering a liquid to a beverage capsule in the cup, and a circular or elliptical piston (5) for locking the beverage capsule in the cup, wherein a circular or elliptical piston chamber (8) having an open end (6) and a closed end (7) is formed in the seat body (3), the piston (5) is slidably and sealingly arranged in the piston chamber (8) and forms a pressure medium chamber (10) with an opening (9) with the closed end (7), the liquid-conducting piercing tube (4) is arranged on the surface of the piston (5) facing the open end (6), and a liquid inlet channel (11) communicating with the liquid-conducting piercing tube (4) is arranged on the piston (5), wherein,

the piston (5) has an open position for keeping the liquid-conducting puncture tube (4) away from the beverage capsule and a locked position for locking the beverage capsule and for causing the liquid-conducting puncture tube (4) to puncture the beverage capsule, wherein the piston (5) is movable from the open position to the locked position under a medium pressure in the pressure medium chamber (10).

2. Locking brewing device according to claim 1, characterized in that the inlet channel (11) is formed by a tube located in the pressure medium chamber (10);

the closed end (7) is provided with the opening (9) and an orifice (12) connected with the pipe fitting.

3. Locking brewing device according to claim 2, characterized in that said piston (5) comprises a stopper (13) and a stem (14) as said tube, wherein an axial hollow channel inside said stem (14) is provided as said inlet channel (11), said stem (14) extending into and slidably sealing fitting with said orifice (12).

4. Locking brewing device according to claim 3, characterized in that the closed end (7) is formed with a protrusion (15) protruding towards the pressure medium chamber (10), said protrusion (15) being formed with the axially extending opening (9) and the axially extending orifice (12).

5. Locking brewing device according to claim 1, characterized in that a return spring (16) is provided between the piston (5) and the seat (3) for enabling the return of the piston (5) to the open position, wherein,

in the locking position, the return spring (16) is in a stored energy state.

6. Locking brewing device according to claim 5, characterized in that the closed end (7) is formed with a protrusion (15) protruding towards the pressure medium chamber (10), a guide space (17) being formed between the protrusion (15) and a side wall of the pressure medium chamber (10),

the piston (5) is formed with a guide wall (18) extending towards the pressure medium chamber (10), the guide wall (18) being located in the guide space (17).

7. Locking brewing device according to claim 5, characterized in that the piston (5) is formed with a guide wall (18) extending towards the pressure medium chamber (10), that the outer side of the guide wall (18) is formed with a radial projection (19), that the inner side of the chamber wall of the piston chamber (8) is formed with an axial groove (20), that the radial projection (19) is located in the axial groove (20) and can move in the axial direction of the axial groove (20), and that the return spring (16) is arranged between the radial projection (19) and the axial groove (20).

8. Locking brewing device according to claim 1, wherein a beverage capsule sealing gasket (21) is provided on the surface of the piston (5) facing the open end (6), said beverage capsule sealing gasket (21) comprising an outer convex arc-shaped surface (22) for abutting a sealing membrane of a beverage capsule and a resilient skirt (23) arranged around said outer convex arc-shaped surface (22) for pressing the periphery of the beverage capsule,

wherein the liquid guide puncture tube (4) penetrates out of the outer convex arc-shaped surface (22).

9. Locking brewing device according to claim 8, characterized in that the liquid-conducting piercing tube (4) protrudes through the centre of the outer convex arc-shaped surface (22).

10. Locking brewing device according to claim 1, characterized in that said seat (3) is formed with a guide groove (24) for lateral extraction and insertion of the guide edge of the cup at said open end (6) of the piston chamber (8).

11. Locking brewing device according to claim 1, characterized in that said closed end (7) is a plug body detachably fitted with said seat body (3).

12. Locking brewing device according to claim 10, characterized in that the end of the guide groove (24) is provided with a magnet capable of attracting the guide edge of the cup.

13. A beverage brewing device, comprising a material cup (2) having a brewing chamber (1) and a locking brewing device according to any one of claims 1 to 12, wherein the material cup (2) is mounted on the open end, and the piston (5) is movable under the medium pressure in the pressure medium chamber (10) from an open position, in which the liquid-conducting piercing tube (4) is remote from the brewing chamber (1), to a locked position, in which the liquid-conducting piercing tube (4) extends into the brewing chamber (1) to be able to pierce a beverage capsule placed therein.

14. A beverage maker, comprising a liquid supply system and the beverage brewing apparatus of claim 13, wherein,

the liquid supply system is communicated with the opening (9) and the liquid inlet channel (11),

the liquid supply system supplies liquid to the pressure medium cavity (10) through the opening (9) so that the piston (5) moves from the open position to the locking position, in the locking position, the liquid guide puncture tube (4) punctures into a beverage capsule (36) placed in the brewing cavity, and the liquid supply system supplies liquid to the liquid inlet channel (11).

15. Beverage machine according to claim 14, characterized in that the liquid supply system comprises a control valve, the opening (9) and the liquid inlet channel (11) both communicating with the control valve, and a back pressure valve (37) is arranged on the line of the control valve communicating with the liquid inlet channel (11), wherein,

when the control valve and the opening (9) supply liquid to the pressure medium cavity (10), the backpressure valve (37) is closed, and when the pressure borne by the backpressure valve (37) reaches an opening value at the locking position, the backpressure valve (37) is opened to supply liquid to the liquid inlet channel (11).

16. The beverage machine according to claim 15, characterized in that the liquid supply system comprises a water pump (38) and a water tank (40), wherein the control valve is a four-way valve (39), the four-way valve (39) is arranged at the outlet end of the water pump (38), and three outlets of the four-way valve (39) are respectively communicated with the opening (9), the liquid inlet channel (11) and the water tank (40), a solenoid valve (41) is arranged between the four-way valve (39) and the water tank (40), wherein,

when the water pump (38) is operated to supply liquid, the electromagnetic valve (41) is closed;

when the water pump (38) stops operating, the electromagnetic valve (41) is opened, and the liquid in the pressure medium cavity (10) flows back to the water tank (40) through the electromagnetic valve (41).