CN220898483U - Self-cleaning brewing system and beverage cooking equipment - Google Patents

Abstract

The utility model discloses a self-cleaning brewing system and beverage cooking equipment, wherein the self-cleaning brewing system comprises a seat brewing cylinder, a first cleaning piece and a second cleaning piece, wherein a brewing cavity is formed in the brewing cylinder, and one end of the brewing cavity in a first direction is opened; the first cleaning piece is arranged on one side of the brewing cavity, and at least one of the first cleaning piece and the brewing cylinder is movably arranged relative to the other one of the first cleaning piece and the brewing cylinder so as to remove dirt at the opening; the second cleaning piece is arranged on one side of the first cleaning piece, at least one of the second cleaning piece and the first cleaning piece is arranged in a relatively movable way, and the second cleaning piece is driven to be in sliding contact with at least one side surface of the first cleaning piece so as to remove dirt on the side surface of the first cleaning piece. The utility model ensures that each cleaning of the brewing cylinder is simple and efficient.

Description

Self-cleaning brewing system and beverage cooking equipment

Technical Field

The utility model relates to the technical field of beverage cooking equipment, in particular to a self-cleaning brewing system and beverage cooking equipment.

Background

Existing beverage processing devices, such as coffee machines, generally integrate the functions of grinding coffee beans, transferring coffee powder, extracting and brewing, cleaning residues, etc. Wherein, the coffee machine is provided with and infuses the subassembly, including infusing the jar, in pouring the jar into to the coffee powder that grinds, utilize and infuse the jar and pressurize and carry out high temperature extraction to the coffee powder, after the coffee machine accomplishes the preparation of the coffee drink of each cup, need discharge the foundation cinder in the jar that infuses, can be with the ejecting jar that infuses the foundation cinder in the jar generally to clear out the foundation cinder from the jar through structure such as scum board. After the coffee grounds are extracted at high temperature, the coffee grounds have certain adhesion viscosity, after long-term use, the coffee grounds are easy to remain on the slag scraping plate, the slag cakes can be broken and adhered on the slag scraping plate in the slag scraping process, and when the brewing cylinder is brewed again, the coffee grounds are easy to be brought into the brewing cylinder, so that the brewing cylinder is polluted, the extraction quality of the beverage is influenced, and the taste and quality of the beverage are poor.

Disclosure of utility model

The utility model mainly aims to provide a self-cleaning brewing system and beverage cooking equipment, and aims to solve the problem that in the traditional technology, the cleaning effect of a brewing cylinder is poor due to residue of a residue scraping plate.

To achieve the above object, the present utility model provides a self-cleaning brewing system, comprising:

A brewing cylinder, wherein a brewing cavity is formed, and one end of the brewing cavity in a first direction is opened;

the first cleaning piece is arranged on one side of the brewing cavity, and at least one of the first cleaning piece and the brewing cylinder is movably arranged relative to the other one of the first cleaning piece and the brewing cylinder so as to remove dirt at the opening; and

The second cleaning piece is arranged on one side of the first cleaning piece, and at least one of the second cleaning piece and the first cleaning piece is arranged in a movable mode relatively to drive the second cleaning piece to slidably abut against at least one side surface of the first cleaning piece so as to remove dirt on the side surface of the first cleaning piece.

Optionally, the relative movement direction of the first cleaning member and the second cleaning member is the first direction, the relative movement direction of the first cleaning member and the brewing cylinder is the second direction, and the first direction and the second direction are not parallel to each other.

Optionally, the brewing cylinder is provided with a powder receiving position and a brewing position which are arranged at intervals in the second direction, and the first cleaning piece is positioned on one side of the brewing position in the second direction;

The self-cleaning brewing system further comprises a first driving mechanism and a second driving mechanism, and the brewing cylinder is movably arranged between the powder receiving position and the brewing position under the driving of the first driving mechanism so as to remove dirt at the opening; the second cleaning piece is movably arranged along the first direction under the drive of the second driving mechanism, so that the second cleaning piece is driven to be in sliding abutting joint with at least one side surface of the first cleaning piece.

Optionally, the self-cleaning brewing system further includes a first piston member, where the first piston member is disposed at the brewing position and is movably disposed along the first direction, and the first piston member extends into the brewing chamber from the opening during the movement of the first piston member, so as to press the powder in the brewing chamber;

The second cleaning piece is fixedly arranged on one side, close to the first cleaning piece, of the first piston piece, and the second driving mechanism is in driving connection with the first piston piece.

Optionally, the second cleaning element is disposed circumferentially around the outer periphery of the first piston element.

Optionally, the softness of the second cleaning member is no greater than the softness of the first cleaning member.

Optionally, the second cleaning member is provided as a brush body.

Optionally, the second cleaning member is in interference abutment with the first cleaning member when the second cleaning member is relatively movable with the first cleaning member.

Optionally, the first cleaning element is arranged adjacent to the brewing position, the first cleaning element is adapted to the shape of the brewing cylinder and is arranged along the circumferential extension of the brewing cylinder;

The second cleaning member is disposed in a shape extending manner to be adapted to an adjacent side surface of the first cleaning member.

Optionally, the brewing cylinder comprises:

A cylinder body having a passage extending therethrough in the first direction;

The second piston piece is arranged in the channel in a reciprocating manner along the first direction, the second piston piece is in sealing connection with the inner wall of the channel, the second piston piece is provided with a plurality of water inlet holes, and the water inlet holes are used for connecting external water bodies into the channel; and

The third driving mechanism is in driving connection with the second piston piece;

The cylinder body is close to one end surface of the first cleaning piece and is a first end surface, the first end surface is used for limiting a cleaning area to be cleaned for cleaning of the first cleaning piece, and/or when the second piston piece moves to extend out of the first end surface, the end surface of the second piston piece is used for limiting a cleaning area to be cleaned for cleaning of the first cleaning piece.

In addition, to achieve the above object, the present utility model provides a beverage processing apparatus comprising:

A brewing cylinder, wherein a brewing cavity is formed, and one end of the brewing cavity in a first direction is opened;

the first cleaning piece is arranged on one side of the brewing cavity, and at least one of the first cleaning piece and the brewing cylinder is movably arranged relative to the other one of the first cleaning piece and the brewing cylinder so as to remove dirt at the opening; and

The second cleaning piece is arranged on one side of the first cleaning piece, and at least one of the second cleaning piece and the first cleaning piece is arranged in a movable mode relatively to drive the second cleaning piece to slidably abut against at least one side surface of the first cleaning piece so as to remove dirt on the side surface of the first cleaning piece.

According to the technical scheme provided by the utility model, under the drive of the first driving mechanism, the first cleaning piece and the brewing cylinder perform a first relative movement stroke, in the process, the first cleaning piece can clean the area to be cleaned of the brewing cylinder, and residues accumulated in the area to be cleaned are scraped out to finish cleaning the area to be cleaned of the brewing cylinder; under the drive of second actuating mechanism, first cleaning member and second cleaning member carry out the relative movable stroke of second, and at this in-process, the second cleaning member can strike off the residue that first cleaning member corresponds the side surface and detain, ensures that first cleaning member satisfies required cleanliness for when first cleaning member cleans the area of treating of brewing jar again, first cleaning member can not bring external pollutant for the brewing jar, ensures that each cleaning of brewing jar is simple high-efficient.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of a self-cleaning brewing system according to the present utility model, wherein the brewing cylinder is in a powder receiving position;

FIG. 2 is a schematic view of the self-cleaning brewing system of FIG. 1;

FIG. 3 is a schematic top view of the self-cleaning brewing system of FIG. 1;

FIG. 4 is a schematic perspective view of an embodiment of a self-cleaning brewing system provided by the present utility model with the brewing cylinder in the brewing position;

FIG. 5 is a schematic longitudinal cross-sectional view of the self-cleaning brewing system of FIG. 4;

FIG. 6 is a schematic view illustrating the assembly of the first cleaning member, the second cleaning member and the first piston member on the base member in FIG. 4;

fig. 7 is an assembly schematic view of the first cleaning member, the second cleaning member and the first piston member in fig. 4.

Reference numerals illustrate:

100 base bodies; 110 powder receiving positions; 120 brewing positions; 200 brewing cylinders; 210 cylinder block; 211 channel; 220 a second piston member; 300 a first cleaning member; 400 a first drive mechanism; 500 a second cleaning member; 600 a second drive mechanism; 700 first piston member.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides beverage cooking equipment. The beverage cooking equipment comprises a machine body and a self-cleaning brewing system arranged on the machine body. It is understood that the beverage processing device can be, but is not limited to, an electrical device such as a coffee machine, a soymilk machine, a coarse cereal wall breaking machine and the like. Taking a coffee machine as an example of the drink cooking device: when the drink cooking equipment directly processes the coffee powder, the self-cleaning brewing system directly accesses the external coffee powder and extracts and infuses the external coffee powder. Wherein the external powder may be, for example, a coffee capsule, a small pot of coffee powder, a pouch of coffee powder, etc. When the beverage preparation device directly processes the coffee beans, the beverage preparation device can further comprise a grinding device, wherein the grinding device is connected with the coffee beans and grinds the coffee beans or coffee powder with the required coarseness; the discharge hole of the grinding device is communicated with the feed hole of the self-cleaning brewing system, and coffee powder obtained by grinding of the grinding device is connected into the self-cleaning brewing system for brewing to extract and brew the coffee powder.

Since the main inventive point of the present application is an improvement of the self-cleaning brewing system, in the following embodiments, the self-cleaning brewing system is mainly described with reference to the accompanying drawings.

Referring to fig. 1 to 7, the present utility model provides a self-cleaning brewing system having a first direction and a second direction disposed in a crossing manner, the self-cleaning brewing system including a brewing cylinder 200, a first cleaning member 300, and a second cleaning member 500. Wherein the brewing cylinder 200 is formed with a brewing chamber, one end of the brewing chamber in the first direction is opened, and the brewing cylinder 200 at least defines a region to be cleaned at the opening; the first cleaning member 300 is located at one side of the cleaning area in the first direction, and at least one of the first cleaning member 300 and the brewing cylinder 200 is movably disposed with respect to the other thereof in the second direction such that the first cleaning member 300 and the brewing cylinder 200 have a first relative movement stroke in which an end surface of the first cleaning member 300 slidably abuts the cleaning area to remove dirt of the cleaning area; the second cleaning member 500 is adjacent to one side of the first cleaning member 300 in the second direction, and the second cleaning member 500 is movably disposed with respect to at least one of the first cleaning members 300 along the first direction such that the second cleaning member 500 has a second relative movement stroke with respect to the first cleaning member 300, in which the second cleaning member 500 slidably abuts against a side surface of the first cleaning member 300 to remove dirt from the side surface of the first cleaning member 300.

In the technical scheme provided by the utility model, under the drive of the first driving mechanism 400, the first cleaning piece 300 and the brewing cylinder 200 perform a first relative movement stroke, in the process, the first cleaning piece 300 can clean the area to be cleaned of the brewing cylinder 200, and residues accumulated in the area to be cleaned are scraped out to finish cleaning the area to be cleaned of the brewing cylinder 200; under the driving of the second driving mechanism 600, the first cleaning member 300 and the second cleaning member 500 perform a second relative movement stroke, in which the second cleaning member 500 is capable of scraping off residues retained on the corresponding side surfaces of the first cleaning member 300, ensuring that the first cleaning member 300 satisfies a required cleanliness, so that when the first cleaning member 300 cleans the cleaning area of the brewing cylinder 200 again, the first cleaning member 300 does not bring external contaminants into the brewing cylinder 200, and ensuring that each cleaning of the brewing cylinder 200 is simple and efficient.

Referring to fig. 1 to 3, in the present design, the self-cleaning brewing system further includes a base 100, and the base 100 mainly provides a mounting carrier for functional components such as the brewing cylinder 200, the first cleaning member 300, and the second cleaning member 500. The base 100 may be, but is not limited to, one or more of a plate structure, a block structure, a box structure, and a frame structure. The base 100 may be configured specifically for a self-cleaning brewing system, and then when the self-cleaning brewing system is applied to a beverage preparation device, the base 100 is fixedly or movably mounted with a body in the beverage preparation device. Of course, the base 100 may also be directly used for a machine body, for example, which is fixed in the beverage processing apparatus, so as to facilitate the integration of the functional components of the self-cleaning brewing system, such as the brewing cylinder 200, the first cleaning member 300, and the second cleaning member 500, on the machine body.

For ease of understanding, in the following embodiments, the self-cleaning brewing system is taken as an example of its horizontal placement on a platform, which thus has a horizontal plane and an up-down direction. The first direction is the up-down direction, and the second direction is one direction on the horizontal plane. However, the above is not limited to the specific application of the first direction and the second direction, and in other applications, the first direction and the second direction may be other directions than the water plane and the up-down direction. In view of the above, the relative movement direction of the first cleaning member 300 and the second cleaning member 500 is the first direction, the relative movement direction of the first cleaning member 300 and the brewing cylinder 200 is the second direction, and the first direction and the second direction are not parallel to each other.

In view of the above, the brewing cylinder 200 may be specifically disposed at the lower side of the base 100, and the above-mentioned grinding device may be specifically disposed at the upper side of the base 100, so that the coffee powder obtained by grinding the grinding device may be introduced into the brewing cylinder 200 by gravity. The brewing cylinder 200 is suspended below the base 100, and the first cleaning member 300 may be disposed between the base 100 and the brewing cylinder 200, i.e., above the brewing cylinder 200.

Next, the first relative movement stroke may be formed by one of the first cleaning member 300 and the brewing cylinder 200 being movably disposed in the second direction, or by both the first cleaning member 300 and the brewing cylinder 200 being movably disposed in the second direction and being movable toward each other and movable away from each other. For ease of understanding, in the following embodiments, the first cleaning member 300 is fixed with respect to the base 100, and the brewing cylinder 200 is movably disposed with respect to the base 100 along the second direction.

Specifically, as shown in fig. 2 to 3, the base 100 is disposed in a plate shape and extends and spreads along a substantially horizontal plane, the base 100 defines a powder receiving position 110 and a brewing position 120 disposed at intervals, and a second direction is defined between the powder receiving position 110 and the brewing position 120.

In addition, the source of the driving force of the first relative movement stroke is not limited, and may be, for example, manually operated by a user, driven by gravity, etc., or in an embodiment, the self-cleaning brewing system further includes a first driving mechanism 400, and the first driving mechanism 400 is in driving connection with the first cleaning member 300 and/or the brewing cylinder 200 that are movably disposed. Similarly, the driving force source of the second relative movement stroke is not limited, and may be, for example, manually operated by a user, driven by gravity, or the like, or in an embodiment, the self-cleaning brewing system further includes a second driving mechanism 600, where the second driving mechanism 600 is disposed on the base 100 and is in driving connection with the first cleaning member 300 and/or the second cleaning member 500 that are movably disposed.

The brewing cylinder 200 is movably switched between the powder receiving position 110 and the brewing position 120 under the drive of the first drive mechanism 400. The first driving mechanism 400 can drive the brewing cylinder 200 to perform linear translation between the powder receiving position 110 and the brewing position 120, and at this time, the linear connection direction between the powder receiving position 110 and the brewing position 120 forms a second direction; of course, the first driving mechanism 400 may also drive the brewing cylinder 200 to perform a curved translational or rotational movement between the powder receiving position 110 and the brewing position 120, wherein the curved connection direction between the powder receiving position 110 and the brewing position 120 constitutes the second direction.

The composition of the first drive mechanism 400 is specifically adapted to the form of movement of the brewing cylinder 200. When the brewing cylinder 200 is linearly translated, the first drive mechanism 400 may be provided directly as a drive, such as a linear cylinder, a motor, or a combination of a drive and a transmission assembly. The transmission component can be a gear set, a screw nut mechanism, a belt pulley component, a gear rack component and the like. Of course, the first drive mechanism 400 may also be provided directly as a driver, or a combination of a driver and a transmission assembly, when the brewing cylinder 200 undergoes a curvilinear translation, or an angular rotational movement.

Referring to fig. 2 to 4, in view of the above, for the specific arrangement of the first cleaning member 300:

The first cleaning member 300 may be fixedly disposed on the moving path of the brewing cylinder 200, that is, on either side of the powder receiving position 110 and/or the brewing position 120 in the second direction, so that the brewing cylinder 200 can move past the first cleaning member 300 under the driving of the first driving mechanism 400, without additionally changing the moving path of the brewing cylinder 200, and additionally providing other driving mechanisms.

Further, in an embodiment, the first cleaning member 300 is fixedly disposed between the powder receiving position 110 and the brewing position 120. In this way, when the first driving mechanism 400 drives the brewing cylinder 200 to reciprocate between the powder receiving position 110 and the brewing position 120, the first cleaning member 300 can be moved past, without additionally extending the moving path length of the brewing cylinder 200. And, when moving to the brewing position 120 via the powder receiving position 110, the first cleaning member 300 can scrape the coffee powder possibly remained in the cleaning area of the brewing cylinder 200, and then scrape the coffee powder into the brewing cavity of the brewing cylinder 200; when returning to the powder receiving position 110 through the brewing position 120, the first cleaning member 300 can scrape off the coffee grounds remaining in the cleaning zone of the brewing cylinder 200.

And/or in an embodiment, the first cleaning member 300 is disposed closer to the brewing position 120 than the powder receiving position 110. Because the brewing position 120 is used for extracting and brewing coffee powder, hot water or hot milk can be introduced into the brewing cavity of the brewing cylinder 200, so that the temperature in the brewing cavity is high and the residual coffee residues are in a softened state, at this time, the first cleaning piece 300 is close to the brewing position 120, so that the coffee residues in the softened state can be cleaned immediately, cleaning after the coffee residues are cooled and hardened is avoided, and the difficulty of cleaning the coffee residues is increased.

The brewing cylinder 200 is internally formed with a brewing chamber for receiving coffee grounds. It will be appreciated that the brewing cylinder 200 may be provided as a semi-closed container having a feed port and a discharge port. Or in an embodiment, the brewing cylinder 200 comprises a cylinder body 210 and a second piston member 220, the cylinder body 210 being provided with a channel 211 therethrough in a first direction; the second piston member 220 is reciprocally disposed in the channel 211 along the first direction, and the second piston member 220 is sealingly connected to the inner wall of the channel 211, so as to seal the lower section of the channel 211, thereby enclosing the brewing chamber.

The second piston member 220 is provided with a plurality of water inlet holes for accessing the external water body into the passage 211. Wherein the external water body is hot water, hot milk, etc. The external body of water may be in communication with the inlet port by means of a structure such as a pipe.

In a specific application, the cylinder 210 has a first end surface adjacent to the first cleaning member 300 in the first direction, and the first end surface defines the cleaning area. In this way, coffee grounds falling on the first end surface, or coffee grounds discharged from within the brew chamber and retained on the first end surface, may be disposed of by the first cleaning member 300. And/or the second piston member 220 defines the cleaning area when moving to extend out of the first end surface, the end surface of the second piston member 220. When the brewing cylinder 200 completes a single brewing and outputs the coffee beverage outwards, the third driving mechanism can drive the second piston member 220 to move towards the first end surface, and the coffee residues remained on the inner wall of the channel 211 are pushed outwards and accumulated on the end surface and/or the first end surface of the second piston member 220 for being cleared by the first cleaning member 300.

The third driving mechanism is disposed on the base 100 and is in driving connection with the second piston member 220. It will be appreciated that the third drive mechanism and the first drive mechanism 400 may be provided separately, or the first drive mechanism 400 and the third drive mechanism may be common, i.e. the first drive mechanism 400 is multiplexed to the third drive mechanism. Specifically, for example, the first drive mechanism 400 includes a driver and a switching assembly coupled to the driver that is capable of converting a power output of the driver to drive the brewing cylinder 200 in the second direction and to switch to the second piston member 220 in the first direction. The driver is, for example, a motor, the switching assembly may include a nut directly or indirectly coaxially connected to the motor, a screw rod screwed to the nut, and a sleeve sleeved on the outer side of the screw rod, the sleeve is fixedly connected to the brewing cylinder 200, the screw rod is fixedly connected to the second piston member 220, one of the sleeve and the screw rod is provided with a guide groove extending along the second direction and the first direction, and the other of the sleeve and the screw rod is provided with a guide protrusion slidably connected to the guide groove.

In addition, in view of the above, the arrangement scheme for the second cleaning member 500:

First, as in the above, the second relative movement stroke may be formed by one of the first cleaning member 300 and the second cleaning member 500 being movably disposed in the first direction, or by both the first cleaning member 300 and the second cleaning member 500 being movably disposed in the first direction and being movable toward each other and being movable away from each other. For ease of understanding, in the following embodiments, the first cleaning member 300 is fixed relative to the base 100, and the second cleaning member 500 is movably disposed relative to the base 100 along the first direction. At this time, the second driving mechanism 600 is drivingly connected to the second cleaning member 500.

Based on any of the above embodiments, the second cleaning member 500 may be independently movable in the first direction and directly coupled with the second driving mechanism 600. Or in an embodiment, the self-cleaning brewing system further comprises a first piston member 700, wherein the first piston member 700 is arranged at the brewing position 120 and is movably arranged along the second direction, and the first piston member 700 extends into the brewing cavity from the opening during the movement of the first piston member 700 so as to press powder in the brewing cavity; the second cleaning member 500 is fixedly disposed on a side of the first piston member 700 close to the first cleaning member 300, and the second driving mechanism 600 is in driving connection with the first piston member 700. It will be appreciated that the first piston member 700, when moving in the first direction into the brewing cylinder 200, is capable of pressing the coffee powder dispersed in the brewing chamber to obtain a coffee cake, so as to help reduce the effect of the channel 211 in the subsequent brewing process, and enable the brewing process of the coffee powder to be more thorough; and the brewing pressure is increased, and the brewing effect is optimized. Since the movement paths of the first and second cleaning members 700 and 500 are substantially the same when the first cleaning member 300 is disposed adjacent to the brewing position 120, the second cleaning member 500 and the first cleaning member 700 can be coupled together, so that the first cleaning member 700 can be driven to move by the second driving mechanism 600, and the second cleaning member 500 can be driven to move at the same time, which is equivalent to simplifying the arrangement of the driving mechanism of the second cleaning member 500, thereby contributing to the simplification of the structure and the reduction of the cost.

In practice, the shape of the first piston member 700 is adapted to the shape of the cavity at the corresponding location of the brewing cylinder 200. When the cross-sectional shape of the brewing cylinder 200 is substantially circular, the first piston member 700 is arranged as a disc-like structure of the same shape. The second driving mechanism 600 is similar to the first driving mechanism 400, and may be configured to include only a driver such as a linear cylinder, or may be configured to include a driver such as a motor, a linear cylinder, a rotary cylinder, and a corresponding transmission assembly such as a gear set, a rack and pinion set, and a screw nut mechanism according to actual needs, which are not described in detail.

In practice, the second cleaning element 500 is disposed circumferentially around the outer periphery of the first piston member 700. In this way, on the one hand, the second cleaning member 500 always has at least partial abutment with the side surface of the first cleaning member 300, regardless of how the first cleaning member 300 is disposed relative to the brewing cylinder 200, so that dirt such as coffee grounds remaining on the side surface of the first cleaning member 300 can be scraped off during its movement in the first direction.

In particular when the external dimensions of the first piston member 700 are substantially the same as the dimensions of the inner cavity at the corresponding position of the brewing cylinder 200:

referring to fig. 6 to 7, in an embodiment, the second cleaning member 500 may be disposed at either side of the first piston member 700 in the first direction, for example, at an upper position of the first piston member 700 or at a lower position of the first piston member 700. In this way, the adverse effect of the second cleaning member 500 on the pressing operation of the first piston member 700 can be reduced while ensuring the functional effectiveness of the second cleaning member 500.

Alternatively, in an embodiment, the second cleaning member 500 may still encircle the outer periphery of the first piston member 700, but may be movably disposed with respect to the first piston member 700 in the first direction. In this way, when the first piston member 700 drives the second cleaning member 500 to move close to the first end surface of the cylinder 210, the second cleaning member 500 is first slidingly abutted against the corresponding side surface of the first cleaning member 300, so as to complete cleaning of the corresponding side surface of the first cleaning member 300; then, when the first piston member 700 continues to move into the inlet channel 211, the first piston member 700 is stopped by the first end surface located at the port periphery side of the channel 211, so as to generate relative movement with the first piston member 700 along the first direction, such that only the first piston member 700 enters the channel 211 to complete the pressing operation, and the second cleaning member 500 is stopped outside the channel 211, so that adverse effects of the second cleaning member 500 on the pressing operation of the first piston member 700 can be reduced.

The first piston member 700 is driven by the second driving mechanism 600, and the first piston member 700 can be rotatably disposed when moving up and down, so that in the moving process of the first piston member 700, the second cleaning member 500 can be synchronously driven to move up and down and rotate, the second cleaning member 700 preferably adopts a circular surrounding form, and can also adopt a form that a plurality of cleaning arms are arranged in a surrounding manner, and an included angle between each cleaning arm is less than 120 degrees. The number of the cleaning arms may be set to at least three.

Of course, when the outer dimension of the first piston member 700 is slightly smaller than the dimension of the inner cavity at the corresponding position of the brewing cylinder 200, the second cleaning member 500 may be provided to be made of an elastic material having an elastic deformability in the second direction. In this way, when the first piston member 700 drives the second cleaning member 500 to move close to the first end surface of the cylinder 210, the second cleaning member 500 is first slidingly abutted against the corresponding side surface of the first cleaning member 300, so as to complete cleaning of the corresponding side surface of the first cleaning member 300; then, when the first piston member 700 continues to move into the inlet channel 211, the second cleaning member 500 simultaneously enters the channel 211, but is pressed by the inner wall of the channel 211 to generate compression deformation, and the sealing strength between the first piston member 700 and the inner wall of the channel 211 is enhanced by the compression deformation.

Based on any of the above embodiments, in a further aspect, the softness of the second cleaning member 500 is not greater than the softness of the first cleaning member 300. In this way, when the second cleaning member 500 and the first cleaning member 300 generate the second relative movement stroke, the second cleaning member 500 increases the sliding abutment force with the first cleaning member 300 through the elastic deformation thereof, and increases the cleaning effect of the second cleaning member 500 on the first cleaning member 300. The first cleaning member 300 does not generate large deformation, and the structural integrity and the accurate installation orientation of the first cleaning member 300 are ensured, so that the cleaning effect of the first cleaning member 300 on the brewing cylinder 200 is maintained.

In addition, in a further aspect, the second cleaning member 500 and the first cleaning member 300 may form an increasing interference amount during approaching the brewing cylinder 200 along the first direction, so that the cleaning effect of the second cleaning member 500 on the first cleaning member 300 is gradually enhanced, and the method is particularly suitable for the situation that residues on the first cleaning member 300 are mainly accumulated in the lower area of the first cleaning member 300.

To achieve the above object, the first cleaning member 300 and/or the second cleaning member 500 may be specifically configured such that sliding contact surfaces thereof are inclined gradually approaching each other in a direction approaching the brewing cylinder 200 in the first direction. Or the second driving mechanism 600 may be provided to drive the second cleaning member 500 to move along the above-described obliquely arranged track.

In a specific application, the first cleaning member 300 may be provided in a plate shape, and the first cleaning member 300 is made of an elastic material, such as a rubber block or a rubber plate; and/or the second cleaning member 500 is provided as a brush body. At least bristle portions of the second cleaning member 500 are made of a flexible material, and bristles of the second cleaning member 500 face the adjacent side surface of the first cleaning member 300 and are in interference abutment with the corresponding side surface of the first cleaning member 300 during the second relative movement stroke. The brush body can be made of flexible materials such as cloth, or elastic materials such as rubber strips. In this way, the bristle part of the second cleaning member 500 can be deformed by being forced, and flexibly abutted against the corresponding side surface of the first cleaning member 300, while contributing to an increase in the degree of concave-convex fitting with the corresponding side surface of the first cleaning member 300 and an increase in the contact area with the corresponding side surface of the first cleaning member 300 by the deformation.

Further in an embodiment, the first cleaning element 300 is disposed adjacent to the brewing position 120, the first cleaning element 300 being adapted to the shape of the brewing cylinder 200 and being arranged along the circumferential extension of the brewing cylinder 200; the second cleaning member 500 is disposed in a shape extending manner to be adapted to the adjacent side surface of the first cleaning member 300.

The plane of the area to be cleaned is a reference plane. In view of the above, the reference plane may be a plane in which the first end surface is located, or a plane in which an end surface of the second piston member 220 movably protruding from the first end surface is located. The first cleaning member 300 has an orthographic projection area on the reference plane, which is provided to cover at least the cleaning area in a third direction perpendicular to the second direction. In this way, the first cleaning member 300 can clean the entire cleaning area at one time when the first cleaning member 300 performs a relative movement stroke with the brewing cylinder 200.

Specifically, when the brewing cylinder 200 is provided in a cylindrical arrangement, the first cleaning member 300 may be provided to extend in an arc shape along the circumferential direction of the brewing cylinder 200, and the arc length of the arc shape is not less than half the circumferential length of the brewing cylinder 200. Or the first cleaning member 300 may be provided in a linear shape extending in the third direction, the length of the linear shape being not less than the maximum width of the brewing cylinder 200 in the third direction. The shape of the second cleaning member 500 is adapted to the shape of the adjacent side surface of the first cleaning member 300, and the extension length of the second cleaning member 500 in the third direction is not less than the corresponding length of the first cleaning member 300.

Referring to fig. 2 to 5, the preferred embodiment of the present invention includes that after the coffee brewing cylinder 200 is finished extracting coffee, the second piston member 220 in the cylinder 210 pushes the coffee grounds upward out of the cylinder 210, and then the brewing cylinder 200 rotates in the second direction, and during the rotation, the first cleaning member 300 scrapes off the powder cake. After the brewing cylinder 200 continues to rotate to the full position to move out of the brewing position 120 (without having to rotate to the powder receiving position 100), the second cleaning member 500 can start to work, so as to avoid the pollution of the brewing cylinder 200 caused by the powder residue on the first cleaning member 300 falling into the brewing cylinder 200.

Preferably, in the case of continuous brewing, when the brewing cylinder 200 is moved to the powder receiving position 110, the second driving mechanism 600 drives the first piston member 700 and the second cleaning member 500 to move in the first direction, and the first cleaning member 300 is moved downward to clean, so that in order to ensure cleanliness, the number of up-and-down reciprocations of the second cleaning member 500 can be preset according to, for example, the dirt degree of the first cleaning member 300, the cleaning requirement, etc., and finally the first piston member 700 is kept near the stroke of the lower end of the second cleaning member 500. Meanwhile, when the brewing cylinder 200 is positioned below the first cleaning member 300, the second cleaning member 500 is prevented from continuously scraping the first cleaning member 300 in the downward movement process, so that the first cleaning is caused, and dirt on the surface of the first cleaning member 300 falls into the brewing cylinder 200, thereby affecting the brewing quality and reducing the quality of the extracted coffee.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (11)

1. A self-cleaning brewing system, characterized in that it comprises:

A brewing cylinder, wherein a brewing cavity is formed, and one end of the brewing cavity in a first direction is opened;

the first cleaning piece is arranged on one side of the brewing cavity, and at least one of the first cleaning piece and the brewing cylinder is movably arranged relative to the other one of the first cleaning piece and the brewing cylinder so as to remove dirt at the opening; and

The second cleaning piece is arranged on one side of the first cleaning piece, and at least one of the second cleaning piece and the first cleaning piece is arranged in a movable mode relatively to drive the second cleaning piece to slidably abut against at least one side surface of the first cleaning piece so as to remove dirt on the side surface of the first cleaning piece.

2. The self-cleaning brewing system of claim 1, wherein the direction of relative movement of the first cleaning member and the second cleaning member is the first direction, the direction of relative movement of the first cleaning member and the brewing cylinder is the second direction, and the first direction and the second direction are not parallel to each other.

3. The self-cleaning brewing system of claim 2 wherein the brewing cylinder has a powder receiving position and a brewing position spaced apart in the second direction, the first cleaning member being located on one side of the brewing position in the second direction;

The self-cleaning brewing system further comprises a first driving mechanism and a second driving mechanism, and the brewing cylinder is movably arranged between the powder receiving position and the brewing position under the driving of the first driving mechanism so as to remove dirt at the opening; the second cleaning piece is movably arranged along the first direction under the drive of the second driving mechanism, so that the second cleaning piece is driven to be in sliding abutting joint with at least one side surface of the first cleaning piece.

4. A self-cleaning brewing system as recited in claim 3 further comprising a first piston member disposed at said brewing position and movable in said first direction, said first piston member extending from said opening into said brewing chamber during movement thereof to compress powder disposed within said brewing chamber;

The second cleaning piece is fixedly arranged on one side, close to the first cleaning piece, of the first piston piece, and the second driving mechanism is in driving connection with the first piston piece.

5. The self-cleaning brewing system of claim 4, wherein the second cleaning member is circumferentially disposed about the periphery of the first piston member.

6. The self-cleaning brewing system of claim 1, wherein the softness of the second cleaning member is no greater than the softness of the first cleaning member.

7. The self-cleaning brewing system of claim 6, wherein the second cleaning member is configured as a brush body.

8. The self-cleaning brewing system of claim 1, wherein the second cleaning member is in interference abutment with the first cleaning member upon relative movement of the second cleaning member and the first cleaning member.

9. The self-cleaning brewing system of claim 1, wherein the first cleaning element is disposed adjacent the brewing location, the first cleaning element being adapted to the shape of the brewing cylinder and disposed along a circumferential extension of the brewing cylinder;

The second cleaning member is disposed in a shape extending manner to be adapted to an adjacent side surface of the first cleaning member.

10. The self-cleaning brewing system of claim 1, wherein the brewing cylinder comprises:

A cylinder body having a passage extending therethrough in the first direction;

The second piston piece is arranged in the channel in a reciprocating manner along the first direction, the second piston piece is in sealing connection with the inner wall of the channel, the second piston piece is provided with a plurality of water inlet holes, and the water inlet holes are used for connecting external water bodies into the channel; and

The third driving mechanism is in driving connection with the second piston piece;

The cylinder body is close to one end surface of the first cleaning piece and is a first end surface, the first end surface is used for limiting a cleaning area to be cleaned for cleaning of the first cleaning piece, and/or when the second piston piece moves to extend out of the first end surface, the end surface of the second piston piece is used for limiting a cleaning area to be cleaned for cleaning of the first cleaning piece.

11. A beverage preparation device comprising a self-cleaning brewing system according to any one of claims 1 to 10.