Powder pressing blade, automatic powder pressing device and coffee machine

Abstract

The utility model discloses a powder pressing blade, an automatic powder pressing device and a coffee maker, the powder pressing blade comprises a blade main body, the blade main body is used for being connected with an output shaft of the automatic powder pressing device, and the blade main body can rotate along with the output shaft of the automatic powder pressing device; the powder sweeping component is movably arranged on the blade main body, and the powder sweeping component is provided with a retraction position and an extension position; when the powder sweeping component is located at the retraction position, the vertical projection of the powder sweeping component is located in the vertical projection of the blade main body; when the powder sweeping component is located at the extending position, the vertical projection of the powder sweeping component protrudes relative to the vertical projection of the blade body. The powder sweeping component is maintained at the extending position under the action of centrifugal force generated when the blade main body rotates, so that the powder sweeping component can be in contact with the inner wall of the powder bowl. The powder sweeping component is movably arranged on the blade main body, so that the problem of non-uniform powder sweeping is avoided, and meanwhile, abnormal sound can be reduced, so that the stability, the uniformity and the consistency of powder pressing can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to coffee extraction technical field especially, automatic powder pressing device and coffee machine of a kind of powder pressing blade. BACKGROUND

[0002] Automatic powder pressing device in coffee machine can ensure that coffee powder is evenly compacted in powder bowl, avoid the problem of uneven force or angle deviation that may appear when manually pressing powder, and uniform powder pressing helps water flow evenly through coffee powder, thereby improving the uniformity and flavor of extraction.

[0003] Chinese invention patent with publication No. CN105101851B discloses a motorized coffee tamping and pushing device, which comprises: a hub from which one or more tamping blades radiate, the tamping blades are provided with a scraper insert, the scraper insert is an elastomer, the scraper insert includes a flat body with parallel sides, the body has an enlarged head at one end. The other end of the body is characterized by a vertically aligned ridge, lip or bead. The lip protrudes beyond the outer periphery of the pusher fan or body and extends so as to sweep or contact the inner wall of the powder bowl. When the pusher fan rotates, the lip is used to clean the powder bowl or scrape off the debris of the inner wall of the powder bowl. However, this design has a obvious defect: since the scraper insert is fixedly installed, when eccentricity occurs between the powder bowl and the blade, the lip will be excessively pressed, causing the problem of abnormal noise or uneven powder sweeping. This not only affects the stability of the equipment, but also may reduce the uniformity and consistency of powder pressing. SUMMARY

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the utility model provides a powder pressing blade, an automatic powder pressing device and a coffee machine.

[0005] The utility model is realized through the following technical solutions:

[0006] In the first aspect, the utility model provides a powder pressing blade, which comprises:

[0007] A blade body, the blade body is used to be connected with the output shaft of the automatic powder pressing device, and the blade body can rotate with the output shaft of the automatic powder pressing device; and

[0008] A powder sweeping component, the powder sweeping component is movably arranged on the blade body, and the powder sweeping component has a retracted position and an extended position;

[0009] When the powder sweeping component is in the retracted position, the vertical projection of the powder sweeping component is located in the vertical projection of the blade body;

[0010] a vertical projection of the powder sweeping component protrudes relative to a vertical projection of the blade body when the powder sweeping component is in the extended position;

[0011] the powder sweeping component is maintained in the extended position by a centrifugal force generated when the blade body rotates, so that the powder sweeping component can be in contact with the inner wall of the powder bowl.

[0012] The powder sweeping component is movably arranged on the blade body, and has a retracted position and an extended position. When the blade body does not rotate, the vertical projection of the powder sweeping component is located within the vertical projection of the blade body, so that the powder sweeping component does not exceed the outer periphery of the blade body. When the blade body rotates, the powder sweeping component can be automatically switched from the retracted position to the extended position under the action of the centrifugal force of the blade body, and is automatically maintained in the extended position, so that the powder sweeping component is always in appropriate contact with the inner wall of the powder bowl. Therefore, the coffee powder on the inner wall of the powder bowl can be swept by the powder sweeping component, and the coffee powder on the inner wall of the powder bowl falls to the lower side of the blade body, thereby achieving a good powder pressing effect. Since the powder sweeping component can move relative to the blade body, the moving stroke of the powder sweeping component between the retracted position and the extended position provides sufficient avoiding space for the powder sweeping component. When the blade body encounters eccentricity or the powder sweeping component is unevenly stressed, the powder sweeping component can automatically adjust the position to avoid excessive pressing of the inner wall of the powder bowl. At the same time, the powder sweeping component is always in appropriate contact with the inner wall of the powder bowl under the action of the centrifugal force of the blade body, so that the powder sweeping component can effectively sweep the inner wall of the powder bowl, and the problem of uneven sweeping is avoided. In addition, since the powder sweeping component can move relative to the blade body, the powder sweeping component and the blade body are floatingly connected, so that the powder sweeping component can elastically contact the inner wall of the powder bowl. This elastic contact can reduce the generation of abnormal sound. Therefore, the movable arrangement of the powder sweeping component can ensure the stability, uniformity and consistency of the powder pressing, and is helpful to improve the extraction uniformity and flavor of coffee.

[0013] In an embodiment, the blade body has a first avoiding groove;

[0014] The powder sweeping component can move along the first avoiding groove, so that the powder sweeping component can be extended and retracted along the first avoiding groove, the moving stability of the powder sweeping component can be improved, and the powder sweeping component is located in the first avoiding groove when the powder sweeping component is in the retracted position, so that the powder sweeping component can be accommodated in the first avoiding groove, the powder sweeping component can be protected, and the internal space utilization rate of the blade body is improved, which is beneficial to the miniaturization and compactness of the powder pressing blade.

[0015] In an embodiment, the blade body further has a first limiting portion, the first limiting portion is located in the first avoiding groove, and the first limiting portion and the side wall of the first avoiding groove enclose a second avoiding groove.

[0016] The powder sweeping component is provided with a third avoiding groove and a second limiting portion, the third avoiding groove and the first limiting portion are movably matched, the second limiting portion and the second avoiding groove are movably matched, and the second limiting portion can abut against the first limiting portion to limit the powder sweeping component from being separated from the blade body. Through the matching of the first limiting portion and the third avoiding groove and the matching of the second limiting portion and the second avoiding groove, the powder sweeping component can be self-adaptively adjusted within a certain range to avoid excessive extrusion caused by eccentricity, and the abutment of the second limiting portion against the first limiting portion can prevent the powder sweeping component from being separated from the blade body, thereby improving the operation stability of the powder pressing blade.

[0017] In an embodiment, the powder sweeping component comprises:

[0018] a body portion; and

[0019] two first connecting portions, both of which are arranged on the same end of the body portion and are arranged apart along the height direction of the body portion, and each of the first connecting portions is provided with the second limiting portion at one end thereof away from the body portion, the second limiting portions are located between the two first connecting portions, the second limiting portions, the body portion and the first connecting portions form the third avoiding groove, and the two second limiting portions form a mounting opening which is in communication with the third avoiding groove and has a reduced-diameter state and an expanded-diameter state, and the first connecting portion away from the body portion is movably arranged, and the mounting opening can switch between the reduced-diameter state and the expanded-diameter state along with the movement of the first connecting portion;

[0020] When the mounting opening is in the reduced-diameter state, the caliber of the mounting opening is smaller than the height dimension of the first limiting portion, so as to limit the second limiting portion in the second avoiding groove;

[0021] When the mounting opening is in the expanded-diameter state, the caliber of the mounting opening is larger than the height dimension of the first limiting portion, so as to enable the second limiting portion to be separated from the second avoiding groove. Since the mounting opening can switch between the reduced-diameter state and the expanded-diameter state along with the movement of the first connecting portion, when the powder sweeping component is mounted, the first connecting portion is driven to move to expand the mounting opening, so that the mounting opening can pass through the first limiting portion, thereby facilitating the mounting of the powder sweeping component on the blade body, and after the powder sweeping component is mounted on the blade body, the first connecting portion is reset to reset the mounting opening to the reduced-diameter state, thereby reliably mounting the powder sweeping component on the blade body. That is, through the state switching of the mounting opening, the powder sweeping component can be freely converted between the fixed state and the detachable state, so that the disassembly and assembly of the powder sweeping component are more convenient and efficient, thereby facilitating the maintenance and replacement of the powder sweeping component.

[0022] In an embodiment, the first limiting portion is provided with a mounting guide portion at an end thereof away from the second avoiding groove, and the mounting guide portion gradually reduces in cross section from the direction away from the second avoiding groove;

[0023] Two of the second limiting portions are provided with a mounting guide groove at an end thereof away from the third avoiding groove, and the mounting guide groove gradually increases in size from the direction away from the third avoiding groove;

[0024] In the process of mounting the dust sweeping component on the vane body, the mounting guide portion and the mounting guide groove are slidably fitted to drive the first connecting portion to move. In the process of the slidably fitted mounting guide portion and the mounting guide groove, the contact force of the tapered or beveled structure drives the first connecting portion to move, so that the mounting port is switched from the reduced diameter state to the expanded diameter state, and the installation of the dust sweeping component is completed without additional operation, which simplifies the installation and makes the installation more convenient.

[0025] In an embodiment, the dust sweeping component comprises:

[0026] a main body portion; and

[0027] two first connecting portions, both of which are provided on the same end of the main body portion and are arranged apart along the height direction of the main body portion, wherein one of the first connecting portions is provided with the second limiting portion at an end thereof away from the main body portion, the second limiting portion is located between the two first connecting portions, the second limiting portion, the main body portion and the first connecting portions form the third avoiding groove, the second limiting portion and the first connecting portion arranged opposite thereto form a mounting port, the mounting port is communicated with the third avoiding groove, the mounting port has a reduced diameter state and an expanded diameter state, and the end of the first connecting portion away from the main body portion is movably arranged, and the mounting port is switched between the reduced diameter state and the expanded diameter state along with the movement of the first connecting portion;

[0028] When the mounting port is in the reduced diameter state, the caliber of the mounting port is smaller than the height dimension of the first limiting portion, so as to limit the second limiting portion in the second avoiding groove;

[0029] When the installation port is in the expanded state, the diameter of the installation port is greater than the height dimension of the first limiting portion, so that the second limiting portion can be separated from the second avoiding groove. Since the installation port can switch between the contracted state and the expanded state along with the first connecting portion, when the powder sweeping component is installed, the installation port can be expanded by driving the first connecting portion to move, so that the installation port can pass through the first limiting portion, thereby facilitating the easy installation of the powder sweeping component on the blade body. After the powder sweeping component is installed on the blade body, the first connecting portion is reset to reset the installation port to the contracted state, thereby reliably installing the powder sweeping component on the blade body. That is, through the state switching of the installation port, the powder sweeping component can be freely converted between the fixed state and the detachable state, so that the disassembly and assembly of the powder sweeping component are more convenient and efficient, thereby facilitating the maintenance and replacement of the powder sweeping component.

[0030] In an embodiment, the blade body is further provided with a second connecting portion, the second connecting portion is located in the second avoiding groove, and the second connecting portion connects the side wall of the second avoiding groove and the first limiting portion, so as to increase the contact area of the first limiting portion and the blade body, thereby improving the connection stability of the first limiting portion and the blade body.

[0031] In an embodiment, one end of the powder sweeping component is provided with a powder sweeping protruding portion, the powder sweeping protruding portion has a circular arc cross section, and the powder sweeping protruding portion is used for sweeping the inner wall of the powder bowl. That is, the powder sweeping protruding portion is in contact with the inner wall of the powder bowl. The circular arc-shaped powder sweeping protruding portion can closely fit the inner wall of the powder bowl, ensure complete cleaning, avoid coffee powder residue, and ensure the cleanliness of the inner wall of the powder bowl, which helps to improve the uniformity of the powder pressing and extraction. In addition, the circular arc-shaped powder sweeping protruding portion can reduce the hard contact with the inner wall of the powder bowl, reduce the wear, and prolong the service life of the powder sweeping component and the powder bowl.

[0032] In a second aspect, the utility model also provides an automatic powder pressing device, including the above-mentioned powder pressing blade.

[0033] The automatic powder pressing device of the utility model, since the above-mentioned powder pressing blade is used, based on the same movable powder sweeping component on the blade body, the problem of uneven sweeping is avoided, and at the same time, the abnormal sound can be reduced, so that the stability, uniformity and consistency of the powder pressing can be ensured.

[0034] In a third aspect, the utility model also provides a coffee machine, including the above-mentioned powder pressing blade.

[0035] The coffee machine of the utility model, since the above-mentioned powder pressing blade is used, based on the same movable powder sweeping component on the blade body, the problem of uneven sweeping is avoided, and at the same time, the abnormal sound can be reduced, so that the stability, uniformity and consistency of the powder pressing can be ensured.

[0036] The utility model discloses the beneficial effect of:

[0037] The utility model discloses a powder pressing blade, because the powder sweeping part is movably arranged on the blade main body, and the powder sweeping part has the retracted position and the extended position, under the condition that the blade main body does not rotate, the vertical projection of the powder sweeping part is located in the vertical projection of the blade main body, so that the powder sweeping part does not exceed the outer periphery of the blade main body, and under the condition that the blade main body rotates, the powder sweeping part can be switched from the retracted position to the extended position automatically under the centrifugal force of the blade main body, and the extended position is maintained automatically, so that the powder sweeping part always maintains appropriate contact with the inner wall of the powder bowl, so that the coffee powder on the inner wall of the powder bowl can be swept by the powder sweeping part, and the coffee powder on the inner wall of the powder bowl falls to the lower side of the blade main body, thereby achieving good powder pressing effect, wherein, because the powder sweeping part can move relative to the blade main body, the moving stroke of the powder sweeping part between the retracted position and the extended position provides sufficient avoiding space for the powder sweeping part, when the blade main body encounters eccentric problem or the powder sweeping part is unevenly stressed, the powder sweeping part can automatically adjust the position, avoids excessive extrusion of the inner wall of the powder bowl, and simultaneously, the powder sweeping part always maintains appropriate contact with the inner wall of the powder bowl under the centrifugal force of the blade main body, so that the powder sweeping part can effectively sweep the inner wall of the powder bowl, avoids uneven sweeping problem, and in addition, because the powder sweeping part can move relative to the blade main body, the powder sweeping part and the blade main body are connected in floating, so that the powder sweeping part can elastically contact the inner wall of the powder bowl, and the elastic contact can reduce the generation of abnormal sound, so that the movable arrangement of the powder sweeping part can ensure the stability, uniformity and consistency of powder pressing, and is helpful to improve the extraction uniformity and flavor of coffee. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is the three-dimensional structure schematic diagram of the powder pressing blade of the utility model under the first visual angle;

[0039] Figure 2 It is the three-dimensional structure schematic diagram of the powder pressing blade of the utility model under the second visual angle;

[0040] Figure 3 It is the section view of the powder pressing blade of the utility model, wherein, the powder sweeping part is at the retracted position;

[0041] Figure 4 It is the section view of the powder pressing blade of the utility model, wherein, the powder sweeping part is at the extended position;

[0042] Figure 5 It is the exploded view of the powder pressing blade of the utility model;

[0043] Figure 6 It is the section view of the powder pressing blade of the utility model after the decomposition.

[0044] Reference signs

[0045] 1 blade body; 11 first avoiding groove; 12 first limiting part; 121 installation guide part; 13 second avoiding groove; 14 second connecting part; 15 hub; 151 connecting hole; 2 powder sweeping part; 21 third avoiding groove; 22 second limiting part; 23 body part; 24 first connecting part; 25 installation port; 26 installation guide groove; 27 powder sweeping protruding part. DETAILED DESCRIPTION

[0046] In the present specification, the orientation terms such as up, down, left, right, front, back, front face, back face, top, bottom, etc. mentioned or possibly mentioned are defined with respect to the configuration shown in the drawings, and they are relative concepts, thus, it is possible that they are changed accordingly according to different positions and different use states. Therefore, these or other orientation terms should not be interpreted as limiting terms.

[0047] Please refer to Figures 1-6 , in the first aspect, the utility model provides a powder pressing blade, including:

[0048] Blade body 1, blade body 1 is used to be connected with the output shaft (not shown in the drawing) of automatic powder pressing device, and blade body 1 can rotate with the output shaft of automatic powder pressing device, and blade body 1 compacts coffee powder in powder bowl (not shown in the drawing) in the process of rotation;And

[0049] Powder sweeping part 2, powder sweeping part 2 is movably arranged on blade body 1, and powder sweeping part 2 has a retracted position and an extended position;

[0050] Wherein, when powder sweeping part 2 is in retracted position, the vertical projection of powder sweeping part 2 is located in the vertical projection of blade body 1, so that powder sweeping part 2 does not exceed the outer periphery of blade body 1, which plays a role in protecting powder sweeping part 2;

[0051] When powder sweeping part 2 is in extended position, the vertical projection of powder sweeping part 2 is protruded relative to the vertical projection of blade body 1, so that at least part of powder sweeping part 2 is extended outside the outer periphery of blade body 1;

[0052] In the process of rotation of blade body 1, powder sweeping part 2 is maintained in extended position by the centrifugal force generated when blade body 1 rotates, so that powder sweeping part 2 can be in contact with the inner wall of powder bowl.

[0053] The powder pressing blade has the advantages that the powder sweeping part 2 is movably arranged on the blade body 1, the powder sweeping part 2 has a retracted position and an extended position, the vertical projection of the powder sweeping part 2 is located in the vertical projection of the blade body 1 in the case that the blade body 1 does not rotate, the powder sweeping part 2 cannot exceed the outer periphery of the blade body 1, the powder sweeping part 2 can be automatically switched from the retracted position to the extended position under the action of the centrifugal force of the blade body 1 in the case that the blade body 1 rotates, and the extended position is automatically maintained, so that the powder sweeping part 2 always maintains appropriate contact with the inner wall of the powder bowl, the coffee powder on the inner wall of the powder bowl can be swept by the powder sweeping part 2, the coffee powder on the inner wall of the powder bowl falls to the lower side of the blade body 1, and therefore, a good powder pressing effect is achieved.

[0054] Referring to Figure 1 In an embodiment, the blade body 1 is provided with a hub 15, the hub 15 is located at the center position of the blade body 1, the hub 15 has a connecting hole 151, the connecting hole 151 is used for cooperating with the output shaft of the automatic powder pressing device, that is, the output shaft of the automatic powder pressing device is inserted into the connecting hole 151, so as to conveniently connect the blade body 1 and the output shaft of the automatic powder pressing device together.

[0055] Referring to Figure 2 In an embodiment, the blade body 1 has a first avoiding groove 11.

[0056] The powder sweeping part 2 can move along the first avoiding groove 11, the powder sweeping part 2 can be telescoped along the first avoiding groove 11, the moving stability of the powder sweeping part 2 can be improved, the powder sweeping part 2 is located in the first avoiding groove 11 when the powder sweeping part 2 is in the retracted position, so as to realize that the powder sweeping part 2 is stored in the first avoiding groove 11, the powder sweeping part 2 can be protected, meanwhile, the utilization rate of the internal space of the blade body 1 is improved, and the powder pressing blade is small in size and compact in structure.

[0057] In an embodiment, the first avoiding groove 11 is arranged through the outer periphery of the blade body 1, and extends along the radial direction of the blade body 1, so as to move the sweeping component 2 along the radial direction of the blade body 1.

[0058] Of course, in other embodiments, the first avoiding groove 11 can be arranged obliquely relative to the radial direction of the blade body 1, so as to move the sweeping component 2 along the oblique direction relative to the radial direction of the blade body 1.

[0059] In an embodiment, the bottom surface of the sweeping component 2 is arranged at the same level as the bottom surface of the blade body 1, so as to further improve the uniformity of the powder pressing.

[0060] Of course, in other embodiments, the sweeping component 2 can be movably arranged on the top surface of the blade body 1, i.e., the sweeping component 2 is arranged on the top surface of the blade body 1.

[0061] Referring to Figures 3-6 In an embodiment, the blade body 1 is further provided with a first limiting part 12, the first limiting part 12 is arranged in the first avoiding groove 11, and the first limiting part 12 and the side wall of the first avoiding groove 11 form a second avoiding groove 13;

[0062] The sweeping component 2 is provided with a third avoiding groove 21 and a second limiting part 22, the third avoiding groove 21 and the first limiting part 12 are movably matched, the second limiting part 22 and the second avoiding groove 13 are movably matched, and the second limiting part 22 can abut against the first limiting part 12, so as to limit the sweeping component 2 from being separated from the blade body 1. Through the matching of the first limiting part 12 and the third avoiding groove 21 and the matching of the second limiting part 22 and the second avoiding groove 13, the sweeping component 2 can be self-adaptively adjusted within a certain range, so as to avoid excessive extrusion caused by eccentricity, and meanwhile, the moving stability of the sweeping component 2 is improved. When the second limiting part 22 abuts against the first limiting part 12, the sweeping component 2 can be prevented from being separated from the blade body 1, and the running stability of the powder pressing blade is improved.

[0063] Referring to Figures 3-6 In an embodiment, the sweeping component 2 comprises:

[0064] a body part 23, which is used for sweeping the inner wall of the powder bowl, i.e., the body part 23 serves as the main supporting structure of the sweeping component 2, and bears the sweeping function; and

[0065] Two first connecting parts 24 are arranged on the same end of the main body part 23, and are arranged apart along the height direction of the main body part 23. Each first connecting part 24 is provided with a second limiting part 22 at the end away from the main body part 23, that is, the first connecting part 24 is used for connecting and supporting the second limiting part 22. The second limiting part 22 is located between the two first connecting parts 24. The second limiting part 22, the main body part 23, and the first connecting part 24 form a third avoiding groove 21. Two second limiting parts 22 form a mounting port 25. The mounting port 25 is communicated with the third avoiding groove 21. The mounting port 25 has a reduced diameter state and an expanded diameter state. The end of the first connecting part 24 away from the main body part 23 is movably arranged. The mounting port 25 can switch between the reduced diameter state and the expanded diameter state along with the movement of the first connecting part 24.

[0066] When the mounting port 25 is in the reduced diameter state, the caliber of the mounting port 25 is smaller than the height dimension of the first limiting part 12, so as to limit the second limiting part 22 in the second avoiding groove 13, prevent the second limiting part 22 from being separated from the second avoiding groove 13, and prevent the sweeping component 2 from being separated or deviated during work, thereby improving the stability of the sweeping component 2 during normal work.

[0067] When the mounting port 25 is in the expanded diameter state, the caliber of the mounting port 25 is larger than the height dimension of the first limiting part 12, so as to enable the second limiting part 22 to be separated from the second avoiding groove 13, thereby enabling the sweeping component 2 to be detached from the blade body 1, and facilitating the maintenance or replacement of the sweeping component 2. Since the mounting port 25 can switch between the reduced diameter state and the expanded diameter state along with the movement of the first connecting part 24, when the sweeping component 2 is installed, the first connecting part 24 is driven to move, so as to expand the mounting port 25, and enable the mounting port 25 to pass through the first limiting part 12, thereby facilitating the easy installation of the sweeping component 2 on the blade body 1. After the sweeping component 2 is installed on the blade body 1, the first connecting part 24 is reset, so as to reset the mounting port 25 to the reduced diameter state, thereby reliably installing the sweeping component 2 on the blade body 1. That is, through the state switching of the mounting port 25, the sweeping component 2 can be freely converted between the fixed state and the detachable state, so as to make the disassembly and assembly of the sweeping component 2 more convenient and efficient, thereby facilitating the maintenance and replacement of the sweeping component 2.

[0068] Referring to Figure 6 In an embodiment, the end of the first limiting part 12 away from the second avoiding groove 13 is provided with a mounting guide part 121. The cross section of the mounting guide part 121 gradually decreases from the direction away from the second avoiding groove 13, so as to form a tapered or inclined surface structure.

[0069] Two second limiting parts 22 are formed with mounting guide grooves 26 at the end away from the third avoiding groove 21, the mounting guide grooves 26 gradually increase from the direction away from the third avoiding groove 21 to form a tapered or beveled structure matching the mounting guide part 121;

[0070] During the installation of the sweeping component 2 on the blade body 1, the mounting guide part 121 and the mounting guide groove 26 can be slidably matched to drive the first connecting part 24 to move. During the sliding matching of the mounting guide part 121 and the mounting guide groove 26, the contact force of the tapered or beveled structure drives the first connecting part 24 to move, so that the mounting port 25 is switched from the reduced diameter state to the expanded diameter state, and the installation of the sweeping component 2 can be completed without additional operation, which simplifies the installation and makes the installation more convenient.

[0071] Of course, in other embodiments, the number of second limiting parts 22 can be one, which is arranged on one of the first connecting parts 24, and in this case, the second limiting part 22 and the first connecting part 24 arranged opposite to it form the mounting port 25. Since the mounting port 25 can be switched between the reduced diameter state and the expanded diameter state by the movement of the first connecting part 24, during the installation of the sweeping component 2, the first connecting part 24 is driven to move to expand the mounting port 25, so that the mounting port 25 can pass through the first limiting part 12, thereby facilitating the easy installation of the sweeping component 2 on the blade body 1. After the sweeping component 2 is installed on the blade body 1, the first connecting part 24 is reset to reset the mounting port 25 to the reduced diameter state, thereby reliably installing the sweeping component 2 on the blade body 1. That is, through the state switching of the mounting port 25, the sweeping component 2 can be freely converted between the fixed state and the detachable state, so that the disassembly and assembly of the sweeping component 2 are more convenient and efficient, thereby facilitating the maintenance and replacement of the sweeping component 2.

[0072] Referring to Figure 5 In an embodiment, the blade body 1 is further provided with a second connecting part 14, which is located in the second avoiding groove 13 and connects the side wall of the second avoiding groove 13 and the first limiting part 12, so as to increase the contact area of the first limiting part 12 and the blade body 1, thereby improving the connection stability of the first limiting part 12 and the blade body 1, and further improving the connection stability of the sweeping component 2 and the blade body 1, and ensuring the stability of the sweeping component 2 during work.

[0073] In an embodiment, the number of second connecting parts 14 is two, and the two second connecting parts 14 are respectively arranged on the opposite sides of the second avoiding groove 13, so as to further improve the connection stability of the first limiting part 12 and the blade body 1.

[0074] In an embodiment, the powder sweeping part 2 is provided with a powder sweeping protrusion 27 at one end thereof, the powder sweeping protrusion 27 is in a circular arc shape in cross section, and the powder sweeping protrusion 27 is used for sweeping the inner wall of the powder bowl, that is, the powder sweeping protrusion 27 is in contact with the inner wall of the powder bowl, wherein the circular arc-shaped powder sweeping protrusion 27 can closely fit the inner wall of the powder bowl, ensuring complete cleaning, avoiding coffee powder residues, and ensuring the cleanliness of the inner wall of the powder bowl, which helps to improve the uniformity of the powder pressing and extraction, in addition, the circular arc-shaped powder sweeping protrusion 27 can reduce the hard contact with the inner wall of the powder bowl, reduce the wear, and prolong the service life of the powder sweeping part 2 and the powder bowl.

[0075] In an embodiment, the powder sweeping part 2 can be made of an elastic material, so that the powder sweeping part 2 has a certain elasticity, which can further reduce the abnormal sound, and at the same time, the first connecting part 24 can be easily driven to move by applying a light force, so that the powder sweeping part 2 is more convenient and efficient to disassemble and assemble.

[0076] Of course, in other embodiments, the powder sweeping part 2 can also be made of a rigid material.

[0077] In a second aspect, the utility model also provides an automatic powder pressing device, which comprises the powder pressing blade.

[0078] The automatic powder pressing device of the utility model, since the powder pressing blade is used, the powder sweeping part 2 is movably arranged on the blade body 1, the problem of uneven powder sweeping is avoided, and the abnormal sound is reduced, so that the stability, uniformity and consistency of the powder pressing can be ensured.

[0079] In a third aspect, the utility model also provides a coffee machine, which comprises the powder pressing blade.

[0080] The coffee machine of the utility model, since the powder pressing blade is used, the powder sweeping part 2 is movably arranged on the blade body 1, the problem of uneven powder sweeping is avoided, and the abnormal sound is reduced, so that the stability, uniformity and consistency of the powder pressing can be ensured.

[0081] The utility model is not limited to the above-mentioned embodiments, and various modifications or changes of the utility model do not deviate from the spirit and scope of the utility model, and if the modifications and changes belong to the claims and the equivalent technical scope of the utility model, the utility model also intends to include the modifications and changes.

Claims

1. A powder-pressing blade, characterized in that, include: The blade body (1) is used to connect with the output shaft of the automatic powder pressing device, and the blade body (1) can rotate with the output shaft of the automatic powder pressing device; as well as A powder sweeping component (2) is movably disposed on the blade body (1), and the powder sweeping component (2) has a retracted position and an extended position; When the powder sweeping component (2) is in the retracted position, the vertical projection of the powder sweeping component (2) is located within the vertical projection of the blade body (1); When the powder sweeping component (2) is in the extended position, the vertical projection of the powder sweeping component (2) protrudes relative to the vertical projection of the blade body (1); The powder sweeping component (2) is maintained in the extended position by the centrifugal force generated when the blade body (1) rotates, so that the powder sweeping component (2) can keep in contact with the inner wall of the powder bowl.

2. The powder-pressing blade according to claim 1, characterized in that, The blade body (1) has a first clearance groove (11); The powder sweeping component (2) can move along the first clearance groove (11). When the powder sweeping component (2) is in the retracted position, the powder sweeping component (2) is located in the first clearance groove (11).

3. The powder-pressing blade according to claim 2, characterized in that, The blade body (1) is also provided with a first limiting part (12), the first limiting part (12) is located in the first clearance groove (11), and the side wall of the first limiting part (12) and the first clearance groove (11) form a second clearance groove (13). The dust-sweeping component (2) is provided with a third clearance groove (21) and a second limiting part (22). The third clearance groove (21) and the first limiting part (12) are movably engaged, and the second limiting part (22) and the second clearance groove (13) are movably engaged. The second limiting part (22) can abut against the first limiting part (12) to restrict the dust-sweeping component (2) from detaching from the blade body (1).

4. The powder-pressing blade according to claim 3, characterized in that, The powder sweeping component (2) includes: Main body (23); and Two first connecting parts (24) are provided on the same end of the main body (23). The two first connecting parts (24) are spaced apart along the height direction of the main body (23). Each first connecting part (24) has a second limiting part (22) at the end away from the main body (23). The second limiting part (22) is located between the two first connecting parts (24). The second limiting part (22), the main body (23), and the first connecting parts (24) form the third clearance groove (21). The two second limiting parts (22) form an installation port (25). The installation port (25) communicates with the third clearance groove (21). The installation port (25) has a reduced diameter state and an expanded diameter state. The end of the first connecting part (24) away from the main body (23) is movably provided. The installation port (25) can switch between the reduced diameter state and the expanded diameter state as the first connecting part (24) moves. When the mounting port (25) is in the reduced diameter state, the diameter of the mounting port (25) is smaller than the height of the first limiting part (12) so as to restrict the second limiting part (22) within the second clearance groove (13); When the mounting port (25) is in the enlarged diameter state, the diameter of the mounting port (25) is greater than the height of the first limiting part (12) so that the second limiting part (22) can disengage from the second clearance groove (13).

5. The powder-pressing blade according to claim 4, characterized in that, The first limiting part (12) is provided with an installation guide part (121) at one end away from the second relief groove (13), and the cross section of the installation guide part (121) gradually decreases from the direction away from the second relief groove (13); The two second limiting parts (22) form an installation guide groove (26) at one end away from the third relief groove (21), and the installation guide groove (26) gradually increases in size from the direction away from the third relief groove (21); During the process of installing the dust sweeping component (2) onto the blade body (1), the installation guide part (121) and the installation guide groove (26) can be slidably engaged to drive the first connecting part (24) to move.

6. The powder-pressing blade according to claim 3, characterized in that, The powder sweeping component (2) includes: Main body (23); and Two first connecting portions (24) are provided on the same end of the main body (23). The two first connecting portions (24) are spaced apart along the height direction of the main body (23). One of the first connecting portions (24) has a second limiting portion (22) at the end away from the main body (23). The second limiting portion (22) is located between the two first connecting portions (24). The second limiting portion (22), the main body (23), and the first connecting portions (24) The third clearance groove (21) is formed, the second limiting part (22) and the first connecting part (24) disposed opposite to it form an installation port (25), the installation port (25) communicates with the third clearance groove (21), the installation port (25) has a reduced diameter state and an expanded diameter state, the end of the first connecting part (24) away from the main body part (23) is movably disposed, and the installation port (25) can switch between the reduced diameter state and the expanded diameter state as the first connecting part (24) moves; When the mounting port (25) is in the reduced diameter state, the diameter of the mounting port (25) is smaller than the height of the first limiting part (12) so as to restrict the second limiting part (22) within the second clearance groove (13); When the mounting port (25) is in the enlarged diameter state, the diameter of the mounting port (25) is greater than the height of the first limiting part (12) so that the second limiting part (22) can disengage from the second clearance groove (13).

7. The powder-pressing blade according to claim 4 or 6, characterized in that, The blade body (1) is also provided with a second connecting part (14), which is located in the second clearance groove (13) and is connected to the side wall of the second clearance groove (13) and the first limiting part (12).

8. The powder-pressing blade according to claim 1, characterized in that, The powder sweeping component (2) has a powder sweeping protrusion (27) at one end. The cross-section of the powder sweeping protrusion (27) is arc-shaped. The powder sweeping protrusion (27) is used to clean the inner wall of the powder bowl.

9. An automatic powder pressing device, characterized in that, The powder-pressing blade includes any one of claims 1-8.

10. A coffee machine, characterized in that, The powder-pressing blade includes any one of claims 1-8.

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