Brewing device
By setting a pressure-proof part and a give way space on the scraping rod of the brewing device, the problem of scraping scraping parts is solved in advance, and better scraping effect and effective cleaning of beverage waste residue is achieved.
Patent Information
- Application Number
- CN202421521474.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The scraping parts in the existing brewing devices are prone to scraping the slag in advance, resulting in poor scraping effect.
A brewing device is designed to prevent the hardening of the beverage waste residue falling from the base by setting up a pressure-proof part and a give way space on the scraping rod, and prevent the scraping rod from performing the scraping action in advance.
It effectively avoids scraping slag in advance by scraping the scrape parts, ensures optimization of scrape effect, and prevents beverage scrap from hardening on the base.
Smart Images
Figure CN223008945U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of beverage machines, and in particular to a brewing device. Background Art
[0002] The brewing device can be used to make beverages such as coffee. The brewing device generally includes a brewing cylinder and a scraper pivotally connected to the brewing cylinder. After the brewing device finishes brewing the beverage, the scraper can be used to scrape the beverage waste in the brewing cylinder from the top of the brewing cylinder. However, the existing scraper may scrape the residue in advance, resulting in poor scraping effect. Utility Model Content
[0003] The present application provides a brewing device, which aims to prevent a scraper from scraping slag in advance, thereby ensuring the scraping effect of the scraper.
[0004] In a first aspect, a brewing device is provided, comprising: a brewing cylinder; a scraper, comprising a scraper rod pivotally connected to the brewing cylinder; a base, wherein an actuating portion is arranged on the base, and when the scraper descends to an actuating position along with the brewing cylinder, the actuating portion actuates the scraper to pivot so as to scrape off beverage waste exposed from the top of the brewing cylinder, and the actuating position is a position where the actuating portion contacts the scraper; wherein the scraper rod is provided with a first leg extending along the descending direction of the brewing cylinder, the first leg comprising an anti-pressure portion located at an end thereof, the anti-pressure portion being arranged toward the base, and when the scraper is located at the actuating position, a clearance space is formed between the base and the anti-pressure portion.
[0005] By providing an anti-pressure portion and forming a clearance space between the anti-pressure portion and the base, even if some beverage waste residues fall onto the base, they will not be hardened on the base. At the same time, it also avoids the scraping rod performing a scraping action before reaching the actuating position due to the hardened beverage waste residues, thereby ensuring the scraping effect.
[0006] In some possible implementations, it also includes: a frame, the frame includes a guide portion, the guide portion extends from the base in the ascending direction of the brewing cylinder, the guide portion includes a sliding guide surface and a recessed portion, the recessed portion includes a first connecting surface and a second connecting surface, the first connecting surface is connected to the sliding guide surface, and the second connecting surface is connected to the base; wherein, the first leg is located between the actuating portion and the sliding guide surface and the first leg is lifted and lowered against the sliding guide surface during the lifting and lowering movement, when the scraper moves during the scraping movement, the first leg pivots through the recessed portion in the direction away from the frame, and when the scraper moves during the resetting movement, the first leg contacts the first connecting surface to reset the scraper to its initial position.
[0007] Setting the frame and the first leg to the above structure can ensure that there is space for the slag scraping member to swing in the first direction during the slag scraping movement, so as to achieve effective slag scraping and can ensure the limit of the reset movement of the slag scraping member to prevent excessive rotation and inability to reset, thereby ensuring that the slag scraping member can swing in the second direction to the initial position during the reset movement.
[0008] In some possible implementation manners, the first leg includes a sliding surface, and the sliding surface leans against the sliding guiding surface during the lifting movement of the slag scraping rod, and the sliding guiding surface is in partial contact with the sliding surface.
[0009] By setting the sliding guiding surface of the frame to be in partial contact with the sliding surface of the first leg, the stability of the first leg against the lifting of the frame can be ensured while reducing the manufacturing cost of the whole frame.
[0010] In some possible implementation manners, the anti-pressure part is a sheet-like structure extending towards the base, or a conical structure with the cone tip facing the base, or a sharp-angle structure with the tip facing the base.
[0011] By setting the anti-pressure part to the above structure, the end of the anti-pressure part can be set to be linear or point-like, which can ensure that more beverage residues on the base are shoveled and removed, thereby further avoiding the premature entry into the slag scraping action and effectively ensuring the slag scraping effect.
[0012] In some possible implementation manners, the first leg includes a connecting surface near the actuating part, the connecting surface is connected to the actuating surface, the connecting surface is connected to the sliding surface through an inclined surface, and the anti-pressure part in the shape of a sharp-angle structure is formed by the sliding surface and the inclined surface.
[0013] Setting the anti-pressure part to the sharp-angle structure formed by the inclined surface and the sliding surface can not only facilitate slag scraping, but also ensure that the first leg and the frame have sufficient contact surfaces, thereby ensuring the stability during up and down sliding and facilitating the reset limit during the reset movement.
[0014] In some possible implementation manners, pivot shafts are provided on both circumferential sides of the outer side wall of the brewing cylinder. The slag scraping rod includes a first slag scraping rod and a second slag scraping rod. The first slag scraping rod and the second slag scraping rod are connected by a slag scraping plate in the slag scraping member. The slag scraping plate is used to scrape the beverage residues. Pivot holes are provided on both the first slag scraping rod and the second slag scraping rod. The pivot holes are pivotally connected to the pivot shafts to form the pivotal connection of the first slag scraping rod and the second slag scraping rod with the brewing cylinder together. Among them, a buckle is provided on the hole wall of the pivot hole, and a clamping groove is provided on the outer side wall of the pivot shaft. When the pivot shaft and the pivot hole are pivotally connected, the buckle is buckled in the clamping groove.
[0015] By providing a buckle on the hole wall of the pivot hole and a clamping groove on the outer side wall of the pivot shaft, when installing the pivot hole onto the pivot shaft, the buckling of the buckle and the clamping groove can ensure the stability of the pivoting connection between the slag scraping member and the brewing cylinder, and prevent the slag scraping member from disengaging from the pivot shaft.
[0016] In some possible implementation manners, the clamping groove is located at one end of the pivot shaft close to the outer side wall of the brewing cylinder, and the buckle is located at one end of the hole wall of the pivot hole close to the outer side wall of the brewing cylinder.
[0017] By setting the buckling position at the outer side wall closest to the brewing cylinder, the longest socketing length between the pivot hole and the pivot shaft can be ensured, that is, the largest overlapping surface between the pivot hole and the pivot shaft, further ensuring the stability of the pivoting connection between the brewing cylinder and the slag scraping member, and thus preventing the slag scraping member from disengaging from the pivot shaft.
[0018] In some possible implementation manners, the buckle includes an arc-shaped protrusion and a connecting portion. The arc-shaped protrusion is clamped with the clamping groove, and the connecting portion is connected to the hole wall and the arc-shaped protrusion respectively in the axial direction of the hole wall. The buckle has a first gap with the hole wall at both ends in the circumferential direction of the hole wall, and a second gap between the outer side wall of the buckle and the rod body of the slag scraping rod.
[0019] Through the structure and connection method of the arc-shaped protrusion, and the settings of the first gap and the second gap, when the buckle is buckled to the clamping groove, the buckle can swing in the circumferential direction of the hole wall and in the radial direction of the hole wall (or the pivot shaft). This enables the buckle to firmly engage with the clamping groove even if it has slight deformation in the circumferential direction of the hole wall and in the radial direction of the hole wall (or the pivot shaft). Therefore, the slight deformation and dimensional deviation of the brewing cylinder or the slag scraping member in the circumferential direction of the hole wall (or the pivot shaft) and in the radial direction of the hole wall (or the pivot shaft) can be avoided, ensuring the feasibility of assembly and the slag scraping function.
[0020] In some possible implementation manners, limiting portions are provided on both circumferential sides of the outer side wall of the brewing cylinder. The limiting portions are used to limit the reset movement of the slag scraping member and to limit the slag scraping movement of the slag scraping member.
[0021] By providing the limiting portions on the brewing cylinder, while ensuring that the slag scraping member moves to the optimal position, it can prevent the slag scraping member from moving too large a displacement and causing damage.
[0022] In some possible implementations, a second leg and a third leg are further provided on the slag scraping rod. One end of the first leg is connected to one end of the second leg, and the second leg is actuated by the actuating part to pivot the slag scraping member. The other end of the second leg is connected to the third leg, and the third leg extends along the ascending direction of the brewing cylinder. When the second leg abuts against the limiting part, the limiting part limits the slag scraping movement of the slag scraping member. A convex part is provided on the third leg. When the third leg abuts against the limiting part through the convex part, the limiting part limits the reset movement of the slag scraping member.
[0023] By cooperating with the limiting part through the convex parts on the second leg and the third leg for limiting, the structure of the slag scraping rod can be effectively utilized to achieve limiting, and the limiting method is simple and effective. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below.
[0025] It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope.
[0026] It should also be understood that the same or similar reference numerals are used in the drawings to represent the same or similar elements.
[0027] It should also be understood that the drawings are only schematic, and the dimensions and ratios of the elements in the drawings are not necessarily accurate.
[0028] Figure 1 It is a schematic structural diagram of a brewing device in the related art.
[0029] Figure 2 It is a schematic structural diagram of beverage residues falling on the base of the brewing device in the related art.
[0030] Figure 3 It is a schematic structural diagram of a brewing device provided by an embodiment of the present application.
[0031] Figure 4 For Figure 3 The corresponding cross-sectional view.
[0032] Figure 5 For Figure 3 The isometric view of the brewing device in
[0033] Figure 6 It is a schematic structural diagram of a brewing device provided by an embodiment of the present application.
[0034] Figure 7Schematic diagram of yet another brewing device provided by an embodiment of the present application.
[0035] Figure 8 For Figure 3 Schematic diagram of the slag scraping member in
[0036] Figure 9 For Figure 8 Partial enlarged view of location C in
[0037] Figure 10 For Figure 3 Schematic diagram of the brewing cylinder in
[0038] Figure 11 For Figure 3 Schematic diagram of the brewing cylinder and the slag scraping member during assembly in Detailed implementation manners
[0039] The embodiments of the present application will be described exemplarily below with reference to the accompanying drawings. It should be understood that there can be multiple implementation manners of the present application, and it should not be construed as being limited to the embodiments described herein. The embodiments described herein are only for a more thorough and clear understanding of the present application.
[0040] As Figure 1 shown, a brewing device 100 in the related art is provided. The brewing device 100 is used for brewing particles or powder to be brewed (such as coffee powder, coffee particles, milk tea particles) to make beverages. The brewing device 100 can be used independently or applied as a functional unit to a beverage machine, such as a coffee machine. It can be understood that the brewing device 100 is not limited to making coffee, and it can also be used to make other types of beverages. The types of beverages made by the brewing device 100 are not particularly limited in this application.
[0041] Referring to Figure 1 , the brewing device 100 may include a brewing cylinder 110, a slag scraping member 120, and a base 130.
[0042] The brewing cylinder 110 is used for brewing beverages. A pivot shaft 111 pivotally connected to the slag scraping member 120 is provided on the brewing cylinder 110. The brewing cylinder 110 can move up or down. For example, the brewing cylinder 110 can move up or down along the frame 140 of the brewing device 100.
[0043] The slag scraping member 120 is pivotally connected to the brewing cylinder 110, and the slag scraping member 120 can rise or fall together with the brewing cylinder 110. The slag scraping member 120 may include a slag scraping rod 121 and a slag scraping plate 122. A pivot hole 123 for pivotally connecting to the brewing cylinder 110 is provided on the slag scraping rod 121. The pivot hole 123 can be pivotally connected (or sleeved) with the pivot shaft 111 so that the slag scraping member 120 is pivotally connected to the brewing cylinder 110. The pivotal connection between the slag scraping member 120 and the brewing cylinder 110 enables the slag scraping member 120 to rotate (or swing, revolve) around the pivot shaft 111 when actuated. The slag scraping plate 122 can scrape off the beverage residue exposed at the top of the brewing cylinder 110 when the slag scraping member 120 rotates in a direction away from the frame 140.
[0044] The base 130 is located at the lowest end of the brewing device 100, and an actuating part 131 is provided on the base 130. The slag scraping member 120 can be rotated by the actuation of the actuating part 131 to scrape off the beverage residue exposed at the top of the brewing cylinder 110.
[0045] After the brewing cylinder 110 finishes brewing the beverage (for the brewing of the beverage, refer to the following text), the brewing device 100 can enter the slag scraping stage. The brewing cylinder 110 can drive the slag scraping member 120 to descend. When the brewing cylinder 110 drives the slag scraping member 120 to descend Figure 1 At the shown actuating position, the actuating part 131 on the base 130 contacts the lower surface 1241 of the actuating leg 124 of the slag scraping rod 121, so that an upward force can be given to the actuating leg 124, enabling the actuating leg 124 to rotate along the pivot shaft 111, thereby driving the slag scraping member 120 to rotate in a direction away from the frame 140. The actuating position is the position where the actuating part 131 contacts the slag scraping member 120. As mentioned above, the rotation of the slag scraping member 120 enables the slag scraping plate 122 to scrape off the beverage residue exposed at the top of the brewing cylinder 110.
[0046] As Figure 1 shown, the slag scraping rod 121 further includes a supporting leg 125, which can be perpendicularly connected to the actuating leg 124 and extends in the descending direction of the brewing cylinder from the connection point. The end 1251 of the supporting leg 125 facing the base 130 is a plane. After the brewing cylinder descends to the actuating position, the end 1251 of the supporting leg 125 can contact the base 12. Since the end 1251 is a plane, the supporting leg 125 can exert a planar force on the base 130.
[0047] During the process of scraping the beverage residues exposed at the top of the brewing cylinder 110 by the scraping plate 122, it is inevitable that some beverage residues will fall from the top of the brewing cylinder 110 onto the base 130. That is to say, the beverage residues on the base 130 can be understood as a part of the beverage residues exposed at the top of the brewing cylinder 110. Since the end 1251 of the support leg 125 is a plane, the planar force exerted on the base 130 will be applied to the beverage residues on the base 130, thereby causing the beverage residues on the base 130 to harden and remain on the base 130.
[0048] Over time, the thickness of the hardened beverage residues will gradually increase. As Figure 2 shown, this will cause the beverage residues 200 on the base 130 to exert an upward force on the scraping rod 121 after the support leg 125 abuts against the beverage residues 200 on the base 130, thereby causing the scraping rod 121 to rotate around the pivot shaft 111, and thus starting to perform the scraping action. However, at this time, the actuating part 131 has not yet contacted the scraping member 120. That is to say, the brewing cylinder 110 and the scraping member 120 have not actually descended to the actuating position, but the scraping member 120 has already been actuated and entered the scraping action in advance. At the same time, the hardened beverage residues 200 prevent the brewing cylinder 110 from moving to the bottommost position, resulting in the rotation angle of the scraping rod 121 being less than the preset value, and making the scraping of the beverage residues 200 at the top of the brewing cylinder 110 incomplete. However, at this time, the beverage residues in the brewing cylinder 110 have not completely emerged from the top of the brewing cylinder 110. The scraping action performed in advance will cause the beverage residues below the top of the brewing cylinder 110 not to be scraped, thus affecting the scraping effect.
[0049] In view of this, an embodiment of the present application proposes a brewing device, aiming to avoid the scraping member from scraping in advance, so as to ensure the scraping effect.
[0050] The following will Figures 3 - 7 describe the brewing device 300 in the embodiment of the present application in detail.
[0051] The brewing device 300 includes a brewing cylinder 310, a scraping member 320, and a base 330.
[0052] The working principles of the brewing cylinder 310, the scraping member 320, and the base 330 are the same as those of the brewing cylinder 110, the scraping member 320, and the base 330 in the foregoing text. The difference is that the structures of the brewing cylinder 310 and the scraping member 320 are different from those of the brewing cylinder 110 and the scraping member 320 in the foregoing text. It should be noted that the following mainly describes their differences, and for the similar content not described, reference can be made to the foregoing text.
[0053] The brewing cylinder 310 is provided with a pivot shaft 311 pivotally connected to the scraping member 320.
[0054] The slag scraping member 320 may include a slag scraping rod 321 and a slag scraping plate 322. A pivot hole 323 pivotally connected to the brewing cylinder 310 is provided on the slag scraping rod 321. The pivot hole 323 may be pivotally connected (or sleeved) with the pivot shaft 311 so that the slag scraping member 320 is pivotally connected to the brewing cylinder 310.
[0055] An actuating portion 331 is provided on the base 330. When the slag scraping member 320 descends to the actuating position along with the brewing cylinder 310, the actuating portion 331 actuates the slag scraping member 320 to pivot so as to scrape off the beverage residue exposed from the top of the brewing cylinder 310. As described above, the actuating position is the position where the actuating portion 331 contacts the slag scraping member 320.
[0056] As Figure 3 shown, the brewing device 300 may further include a frame 340, a piston assembly 350, a driving device, and a transmission mechanism 370. The brewing cylinder 310 may cooperate with the frame 340, the piston assembly 350, the driving device, and the transmission mechanism 370 to brew beverages.
[0057] Among them, the piston assembly 350 may include an upper piston assembly 351 and a lower piston assembly 352. The brewing cylinder 310, the driving device, the transmission mechanism 370, and the base 330 may be installed on the frame 340 to be supported by the frame 340.
[0058] The frame 340 includes a guiding portion 342, and the guiding portion 342 extends in the ascending direction of the brewing cylinder 310 from the base 330. The guiding portion 342 includes a sliding guiding surface 343 and a recessed portion 344. The recessed portion 344 includes a first connecting surface 3441 and a second connecting surface 3442. The first connecting surface 3441 is connected to the sliding guiding surface 343, and the second connecting surface 3442 is connected to the base 330. The driving device can output power, and the power is transmitted to the brewing cylinder 310 through the transmission mechanism 370, so that the brewing cylinder 310 rises or falls. For example, the driving device may be a motor, and the transmission mechanism 370 may be a screw transmission mechanism. Since the slag scraping member 320 is pivotally connected to the brewing cylinder 310, when the brewing cylinder 310 rises or falls, it can drive the slag scraping member 320 to rise or fall together.
[0059] In some embodiments, as Figure 3 shown, the base 330 may include a frame seat 341, the frame 340 is connected to the frame seat 341, and the guiding portion 342 extends in the ascending direction of the brewing cylinder 310 from the frame seat 341.
[0060] The upper end of the lower piston assembly 352 can extend into the brewing cylinder 310 to close the bottom end of the brewing cylinder 310. The lower piston assembly 352 can rise or fall relative to the brewing cylinder 310 to change the size of the brewing chamber in the brewing cylinder 310 or expose the beverage residue in the brewing cylinder 310 from the top of the brewing cylinder 310.
[0061] As Figure 3 shown, the brewing device 100 is in the feeding stage. At this time, the upper piston assembly 351 is separated from the brewing cylinder 310, and the top end of the brewing cylinder 310 is open, so that the powder or granules to be brewed can be added into the brewing cylinder 310.
[0062] Continuing to refer to Figure 3 , the brewing device 100 may further include a feeder 380 and a channel member 390. The channel member 390 is installed on the feeder 380, and the feeder 380 is installed on the frame 340. The feeder 380 has a feeding channel in the shape of a funnel with a large upper end and a small lower end. The powder or granules to be brewed can be poured into the feeder 380 from above the feeder 380. The channel member 390 has a conveying channel. The conveying channel extends from the lower end of the feeder 380 to the upper end of the brewing cylinder 310 to deliver the powder or granules to be brewed into the brewing cylinder 310.
[0063] In some embodiments, as Figure 4 shown, a cam structure 332 may be installed on the base 330. The cam structure 332 can temporarily lock the lower piston assembly 352 during the feeding stage, so that the lower piston assembly 352 and the brewing cylinder 310 maintain the maximum distance, so that the space in the brewing cylinder 310 is large enough to ensure that the powder or granules to be brewed fully enter. In addition, during the subsequent brewing stage, the lower piston assembly 352 can rise to disengage from the locking of the cam structure 332.
[0064] In an example where the brewing device 300 is applied to a coffee machine, a grinding device may be provided above the brewing device 300, and the grinding device can grind coffee beans into coffee powder or coffee granules. The feeder 380 can be used to receive coffee powder or coffee granules from the grinding device and deliver the coffee powder or coffee granules to the channel member 390.
[0065] After the feeding is completed, the brewing device 300 enters the brewing stage. As the brewing cylinder 310 rises, the lower end of the upper piston assembly 351 extends into the brewing cylinder 310 to jointly enclose a substantially closed brewing chamber with the brewing cylinder 310 and the lower piston assembly 352. Among them, the upper piston assembly 351 and the lower piston assembly 352 can squeeze the powder or granules to be brewed in the brewing chamber. After squeezing, brewing can be performed through the flow paths provided in the upper piston assembly 351 and the lower piston assembly 352. The brewing liquid (such as hot water) can flow into the brewing chamber through the flow path of the lower piston assembly 352 to brew the powder or granules in the brewing chamber to obtain a beverage. The brewed beverage can flow out of the brewing chamber through the flow path in the upper piston assembly 351.
[0066] It can be understood that although in the current example, the upper piston assembly 351 is fixed relative to the frame 340, and the brewing cylinder 310 and the lower piston assembly 352 are movable relative to the frame 340, in other examples, it can also be that the brewing cylinder 310 and the lower piston assembly 352 are fixed relative to the frame 340, and the upper piston assembly 351 is driven by a driving device (not shown in the figure) to move up and down.
[0067] After the brewing is completed, the brewing device 100 enters the slag scraping stage. The brewing cylinder 310 can descend. When the brewing cylinder 310 with the slag scraping member 320 descends to the actuation position (as Figures 5 - 7 shown), the lower piston assembly 352 can push the beverage residue out of the inside of the brewing cylinder 310 until the beverage residue is completely exposed from the top of the brewing cylinder 310. For example, when the brewing cylinder 310 with the slag scraping member 120 descends to the actuation position, the upper end surface of the lower piston assembly 352 can be substantially flush with the upper end surface of the brewing cylinder 310, or the upper end surface of the lower piston assembly 352 can be slightly higher than the upper end surface of the brewing cylinder 310. At this time, the slag scraping rod 321 can be driven by the braking portion 331 to pivot, so that the slag scraping plate 322 rotates in a direction away from the frame 340 (abbreviated as the first direction) to scrape the beverage residue. After the slag scraping is completed, the brewing cylinder 310 moves upward, and the slag scraping member 220 rotates around the pivot shaft 311 in a direction close to the frame 340 (abbreviated as the second direction, and the second direction is the opposite direction of the first direction) to reset to the initial position. The initial position can be understood as the position when no slag scraping is performed. For example, when the slag scraping member 320 is in the feeding stage and the brewing stage, the slag scraping member 320 is located at the initial position. In addition, when the slag scraping member 320 finishes slag scraping, the slag scraping member 320 also needs to reset to the initial position. Therefore, the initial position can also be understood as the position to which the slag scraping member 320 needs to reset after the slag scraping is completed.
[0068] When the slag scraping member 320 does not perform slag scraping, that is, when the slag scraping member 320 is located at the initial position, the slag scraping plate 322 is located at a position that does not block the upper inlet of the brewing cylinder 310. For example, the surface of the slag scraping plate 322 away from the frame 340 is flush with the surface of the inner cylinder of the brewing cylinder 310 close to the frame 340. When the slag scraping member 320 performs slag scraping until the slag scraping is completed, the slag scraping plate 322 can rotate from the initial position around the pivot shaft 311 to the slag scraping limit position. The slag scraping limit position can be another position that does not block the upper inlet of the brewing cylinder 310, and this other position that does not block the upper inlet of the brewing cylinder 310 can be a position away from the brewing cylinder 310 in the opposite direction of the initial position. During the process of the slag scraping plate 322 rotating from the initial position to the slag scraping limit position, the upper end surface of the brewing cylinder 310 can be completely swept to scrape the beverage residue on the upper end surface of the brewing cylinder 310.
[0069] For details, see Figure 3 and Figures 5 - 8, in the embodiment of the present application, the slag scraping rod 321 may include a first leg 324, a second leg 325, and a third leg 326.
[0070] Both ends of the second leg 325 are respectively connected to the first leg 324 and the third leg 326, and the second leg 325 is perpendicular to both the first leg 324 and the third leg 326. The first leg 324 extends along the descending direction of the brewing cylinder 310 from the connection with the second leg 325. The third leg 326 extends along the ascending direction of the brewing cylinder 310 from the connection with the second leg 325, and the other end of the third leg 326 is connected to the slag scraping plate 322.
[0071] The second leg 325 has an actuating surface 3251 facing the base 330. When the slag scraping member 320 descends to the actuating position along with the brewing cylinder 310, the actuating surface 3251 contacts the actuating portion 331. Therefore, the actuating portion 331 actuates the slag scraping rod 321 to rotate around the pivot shaft 311, so as to drive the slag scraping plate 322 to scrape off the beverage residue on the top of the brewing cylinder 310.
[0072] Among them, as Figure 3 and Figures 5 - 8 shown, the first leg 324 is located between the actuating portion 331 and the sliding guide surface 343, and the first leg 324 moves up and down against the sliding guide surface 343 on the frame 340 described above during the lifting movement. The first leg 324 may include a sliding surface 3242 and a connecting surface 3243. The sliding surface 3242 slides up and down against the sliding guide surface 343 on the frame 340 during the lifting movement of the slag scraping rod 321, that is, the sliding surface 3242 is the surface on the first leg 324 that contacts the sliding guide surface 343. The connecting surface 3243 is the opposite surface of the sliding surface 3242. The connecting surface 3243 is close to the actuating portion 331 and the connecting surface 3243 is connected to the actuating surface 3251.
[0073] The first leg 324 includes a pressure prevention portion 3241 at its end, and the pressure prevention portion 3241 faces the base 330. Or rather, the pressure prevention portion 3241 is formed as the end portion of the first leg 324, and the end portion is the end of the first leg 324 facing the base 330. That is to say, the pressure prevention portion 3241 can be understood as the end of the first leg 324 close to the base 330, and the pressure prevention portion 3241 can be used to prevent a planar extrusion force from being formed on the base.
[0074] For details, see Figure 6 and Figure 7, when the slag scraping member 320 is in the actuated position, a clearance space S is formed between the base 330 and the pressure prevention portion (3241). The clearance space S may be a space formed by the surface of the pressure prevention portion 3241 facing the base 330, the surface of the base 330 facing the pressure prevention portion 3241, and the extended surface of the connecting surface 3242 extending towards the base 330. The clearance space S is not a solid entity but rather an existence similar to a cavity. Due to the characteristics of the clearance space S, on the one hand, during the downward movement of the first leg 324, the pressure prevention portion 3241 enables the beverage residue to move towards the clearance space S, rather than all remaining at the original position and being directly squeezed and hardened by the first leg 3245. On the other hand, only the lowest part of the pressure prevention portion 3241 in the clearance space S may come into contact with the beverage residue remaining on the base 330, and this small part of the contact does not generate a planar squeezing force downward. Therefore, when the slag scraping member 320 is in the actuated position, due to the existence of the clearance space S and the pressure prevention portion 3241, the first leg 3245 does not form a planar contact with the base 330, and thus does not generate a planar squeezing force downward.
[0075] Through this setting, even if some beverage residue falls on the base 330, it will not be hardened on the base 330. At the same time, it also avoids the slag scraping rod 321 performing the slag scraping action before reaching the actuated position due to the hardened beverage residue, thus ensuring the slag scraping effect.
[0076] The embodiment of the present application does not specifically limit the length of the first leg 324.
[0077] As an example, the length of the first leg 324 (the length from the actuated surface 3251 to the end of the pressure prevention portion 3241) is less than the length of the actuating portion 331. Through this setting, when the slag scraping member 320 descends to the actuated position, the pressure prevention portion 3241 is in a suspended state, that is, it does not contact any object. Even if there is fallen beverage residue on the base 330, the pressure prevention portion 3241 will not contact the beverage residue, and thus will not generate a squeezing force on the beverage residue.
[0078] This setting not only has a simple structure but also can avoid the premature execution of the slag scraping action caused by the hardened beverage residue, ensuring the slag scraping effect.
[0079] As another example, as Figures 5 - 7 shown, the length of the first leg 324 (the length from the actuated surface 3251 to the end of the pressure prevention portion 3241) is equal to the length of the actuating portion 331. Through this setting, when the slag scraping member 320 descends to the actuated position, the end of the pressure prevention portion 3241 forms a line contact or a point contact with the base 330. And whether it is a line contact or a point contact specifically depends on the specific structure of the pressure prevention portion 3241.
[0080] Through this arrangement, even if there is fallen beverage waste on the base 330, the anti-pressure part 3241 will contact the beverage waste, but the anti-pressure part 3241 generates a linear extrusion force or a point extrusion force on the beverage waste. The linear extrusion force or the point extrusion force not only does not squeeze the beverage waste into a cake shape, but can also penetrate into the beverage waste, thereby crushing the beverage waste. In addition, when the scraper 320 is swinging for scraping, the anti-pressure part 3241 can also push the beverage waste away from the actuating part 331, so that the beverage waste is cleaned into the waste bin at the bottom of the brewing device 300.
[0081] The embodiment of the present application does not specifically limit the shape of the pressure-proof portion 3241 .
[0082] As an example, the anti-pressure part 3241 may be a conical structure with the tip facing the base 330, and the end of the anti-pressure part 3241 is the tip of the cone. In this example, the clearance space S may be the space formed by the end surface of the anti-pressure part 3241 forming the tip (the end surface faces the base 330), the surface of the base 330 facing the anti-pressure part 3241, and the extended surface of the connecting surface 3242 extending toward the base 330. Since only the tip of the cone in the clearance space S may contact the beverage waste residue remaining on the base 330, the small part of the contact will not only not generate a planar extrusion force downward, but also be inserted into the beverage waste residue remaining on the base 330 to crush the beverage waste residue, further avoiding the beverage waste residue from hardening on the base 330, and can further avoid entering the scraping action in advance, effectively ensuring the scraping effect.
[0083] As an example, Figure 7 As shown, the anti-pressure portion 3241 may be a sheet-like structure extending toward the base 330, and the end of the anti-pressure portion 3241 is a thin edge of the sheet-like structure in contact with the base 330. In some embodiments, the anti-pressure portion 3241 may be a plurality of sheet-like structures extending toward the base 330, for example, the anti-pressure portion 3241 may be a comb-shaped sheet-like structure. In this example, the clearance space S may be a space formed by the thin edge of the sheet-like structure of the anti-pressure portion 3241 (the thin edge faces the base 330), the surface of the base 330 facing the anti-pressure portion 3241, and the extended surface of the connecting surface 3242 extending toward the base 330. Since only the thin edge in the clearance space S may contact the beverage waste residue remaining on the base 330, the contact of this small part will not only not generate a planar extrusion force downward, but also be inserted into the beverage waste residue remaining on the base 330 to crush the beverage waste residue, further avoiding the beverage waste residue from hardening on the base 330, and further avoiding the early entry into the scraping action, effectively ensuring the scraping effect.
[0084] As another example, Figure 5 and Figure 6As shown, the pressure prevention part 3241 can be a sharp-cornered structure with the tip facing the base 330, and the tip is the end of the pressure prevention part 3241. In this example, the relief space S can be the sharp corner (facing the base 330) forming the tip of the pressure prevention part 3241, the surface of the base 330 facing the pressure prevention part 3241, and the extended surface formed by the connecting surface 3242 extending towards the base 330. Since only the sharp corner in the relief space S may contact the beverage residue remaining on the base 330, this small part of contact will not only not generate a planar extrusion force downward, but also insert into the beverage residue remaining on the base 330 to crush the beverage residue, further avoiding the hardening of the beverage residue on the base 330, further avoiding the early entry into the slag scraping operation, and effectively ensuring the slag scraping effect.
[0085] By setting the pressure prevention part 3241 as the above structure, the end of the pressure prevention part 3241 can be set to be linear or point-like, which can ensure more beverage residue on the base is shoveled and crushed, thereby further avoiding the early entry into the slag scraping operation and effectively ensuring the slag scraping effect.
[0086] In Figure 6 In, the first leg 324 can include, in addition to the sliding surface 3242 and the connecting surface 3243. The first leg 324 can also connect the inclined surface 3244 of the sliding surface 3242 and the connecting surface 3243, and the sliding surface 3242 and the inclined surface 3244 together form the pressure prevention part 3241 with a sharp-cornered structure.
[0087] Setting the pressure prevention part 3241 as the sharp-cornered structure formed by the sliding surface 3242 and the inclined surface 3244 not only facilitates slag scraping, but also ensures that the first leg 432 and the frame 340 have sufficient contact surfaces, thereby ensuring the stability during up and down sliding and facilitating the reset limit during the reset movement.
[0088] In Figure 7 In, the first leg 324 can include, in addition to the sliding surface 3242 and the connecting surface 3243. The first leg 324 can also connect the end surface 3245 of the sliding surface 3242 and the connecting surface 3243, and the pressure prevention part 3241 is a sheet-like structure connected to the end surface 3245. The pressure prevention part 3241 can be located at any position between the sliding surface 3242 and the connecting surface 3243. Preferably, as Figure 7 shown, the pressure prevention part 3241 is located flush with the sliding surface 3242.
[0089] Setting the pressure prevention part 3241 as a sheet-like structure flush with the sliding surface 3242 can also achieve: not only facilitating slag scraping, but also ensuring that the first leg 432 and the frame 340 have sufficient contact surfaces, thereby ensuring the stability during up and down sliding and facilitating the reset limit during the reset movement.
[0090] As described above, the guiding part 342 includes a sliding guiding surface 343 and a recessed part 344. In some embodiments, when the slag scraping member 320 performs a slag scraping movement, the first leg 324 can pivot away from the frame 340 through the recessed part 344, that is, the recessed part 344 allows the first leg 324 to have a space for swinging in the first direction. Specifically, when the first leg 324 pivots, it can pivot out from the recessed part 344 along the guiding direction of the first connecting surface 3341 to reach the slag scraping limit position. This can ensure that there is space for the slag scraping member 320 to swing in the first direction during the slag scraping movement of the slag scraping member 320, so as to achieve effective slag scraping.
[0091] When the slag scraping member 320 performs a reset movement, the anti-pressure part 3241 of the first leg 324 can first contact the first connecting surface 3341, and under the limitation of the first connecting surface 3341, the first leg 324 drives the slag scraping member 320 to reset to the initial position. By limiting the reset movement of the slag scraping member 320 through the first connecting surface 3341, over-rotation and inability to reset are prevented, so as to ensure that the slag scraping member 320 can swing in the second direction to the initial position during the reset movement.
[0092] As described above, the first leg 324 includes a sliding surface 3242, and the sliding surface 3242 abuts against the sliding guiding surface 343 when the slag scraping rod 321 moves up and down. In some embodiments, as Figure 5 shown, in the axial direction along the pivot shaft 311, the width dimension of the sliding surface 3242 is larger than the width dimension of the sliding guiding surface 343, that is to say, the sliding guiding surface 343 is in partial contact with the sliding surface 3242, and the other part of the sliding surface 3242 can be suspended.
[0093] By setting the sliding guiding surface 343 of the frame 340 to be in partial contact with the sliding surface 3242 of the first leg 324, the stability of the first leg 324 against the frame 340 during lifting can be ensured while reducing the manufacturing cost of the whole machine of the frame 340.
[0094] As described above, a pivot shaft 311 is provided on the brewing cylinder 310, and a slag scraping hole 323 is provided on the slag scraping rod 321. In some embodiments, pivot shafts 311 are provided on both circumferential sides of the outer side wall 312 of the brewing cylinder 310. That is to say, the brewing cylinder 310 includes two pivot shafts 311. The distance between the axes of the ends of these two pivot shafts 311 close to the brewing cylinder 310 corresponds to the diameter of the outer side wall 312 of the brewing cylinder 310.
[0095] For details, see Figure 8, the slag scraping rod 321 includes a first slag scraping rod 321a and a second slag scraping rod 321b. The first slag scraping rod 321a and the second slag scraping rod 321 are connected by a slag scraping plate 322 in the slag scraping member 320, that is, the first slag scraping rod 321a and the second slag scraping rod 321 are jointly connected to the slag scraping plate 322. As Figures 3 - 5 shown, the slag scraping plate 322 can be formed into a curved plate with the same diameter as the cylinder of the brewing cylinder 310, and the slag scraping plate 322 is used to scrape off beverage residues. Continuing to refer to Figure 8 , pivot holes 323 are provided on both the first slag scraping rod 321a and the second slag scraping rod 321b. The two pivot holes 323 are pivotally connected to the two pivot shafts 311 respectively to form a pivotal connection between the first slag scraping rod 321a and the second slag scraping rod 321 and the brewing cylinder 310, so that the slag scraping plate 322 can straddle the top of the brewing cylinder 310.
[0096] Among them, as Figure 9 shown in Figure 8 is a partial enlarged view of the C position in Figure 9 , a buckle 328 is provided on the hole wall 327 of the pivot hole 323. As Figure 10 shown, a clamping groove 314 is provided on the outer side wall 313 of the pivot shaft 311. When the pivot shaft 311 and the pivot hole 323 are pivotally connected, the buckle 328 can be snapped (or clamped) into the clamping groove 314.
[0097] By providing a buckle 328 on the hole wall 327 of the pivot hole 323 and a clamping groove 314 on the outer side wall 313 of the pivot shaft 311, when the pivot hole 323 is installed on the pivot shaft 311, the clamping of the buckle 328 and the clamping groove 314 can ensure the stability of the pivotal connection between the slag scraping member 320 and the brewing cylinder 310, and prevent the slag scraping member 320 from disengaging from the pivot shaft 311.
[0098] In the embodiment of the present application, the position of the buckle 328 in the pivot hole 323 and the position of the clamping groove 314 on the outer side wall 313 of the pivot shaft 311 are not specifically limited, as long as the positions of the buckle 328 and the clamping groove 314 are matched when the pivot hole 323 is installed on the pivot shaft 311.
[0099] As an example, as Figure 10 shown, the clamping groove 314 is located at one end of the outer side wall 313 of the pivot shaft 311 close to the outer side wall 312 of the brewing cylinder 310. As Figure 11 shown, the buckle 328 is located at one end of the hole wall 327 of the pivot hole 323 close to the outer side wall 312 of the brewing cylinder 310.
[0100] With this setting, the buckling position can be set at the outermost side wall 312 closest to the brewing cylinder 310, so as to ensure the longest socket length between the pivot hole 323 and the pivot shaft 311, that is, the largest overlapping surface between the pivot hole 323 and the pivot shaft 311, further ensuring the stability of the pivotal connection between the brewing cylinder 310 and the slag scraping member 320, thereby preventing the slag scraping member 320 from disengaging from the pivot shaft 311.
[0101] As described above, the slag scraping member 320 needs to be pivotally connected to the pivot shafts 311 on both circumferential sides of the brewing cylinder 310 through the pivot holes 323 on the two slag scraping rods, namely the first slag scraping rod 321a and the second slag scraping rod 321b. To ensure the feasibility of installation and the stability of the pivotal connection, the two pivot holes 323 of the slag scraping member 320 and the pivot shafts 311 on the brewing cylinder 310 need to meet certain dimensional accuracies. Once the forming or processing accuracy is difficult to control or any one of these two parts is deformed, it will affect the assembly and function.
[0102] In view of this, in some embodiments, as Figure 9 shown, the buckle 328 includes an arc-shaped protrusion 3281 and a connecting portion 3282. The arc-shaped protrusion 3281 is engaged with the clamping groove 314 and the axis of the arc-shaped protrusion 3281 coincides with the axis of the hole wall 327, that is to say, the edge of the arc-shaped protrusion 3281 is concentric with the pivot hole 323. The arc-shaped protrusion 3281 on the buckle 328 allows the pivot hole 323 and the pivot shaft 311 to rotate in cooperation during assembly. When the arc-shaped protrusion 3281 rotates into place, it will snap into the clamping groove 314 of the pivot shaft 311 of the brewing cylinder 310. The connecting portion 3282 is connected to the hole wall 327 and the arc-shaped protrusion 3281 respectively in the axial direction of the hole wall 327. Among them, the connecting portion 3282 can also be understood as a part of the hole wall 327. The buckle 328 has a first gap A at both ends 3283, 3284 in the circumferential direction of the hole wall 327. The first gap A can be a U-shaped through hole at both ends 3283, 3284 of the buckle 328 in the circumferential direction of the hole wall 327.
[0103] Through the structure and connection method of the arc-shaped protrusion 3281 and the setting of the first gap A, the buckle 328 is allowed to swing in the circumferential direction of the hole wall 327 when it is buckled to the clamping groove 314. This enables the buckle 328 to be firmly buckled to the clamping groove 314 even if it has a slight deformation in the circumferential direction of the hole wall 327. Therefore, the slight deformation and dimensional deviation of the brewing cylinder 310 or the slag scraping member 320 in the circumferential direction of the hole wall 327 (or the pivot shaft 311) can be avoided, thus ensuring the feasibility of assembly and the slag scraping function.
[0104] In some embodiments, as Figure 9As shown, in order to further avoid slight deformation and dimensional deviation of the brewing cylinder 310 or the slag scraping member 320 in the radial direction of the hole wall 327 (or the pivot shaft 311), as shown in the figure, there is a second gap B between the outer side wall 3285 of the buckle 328 and the rod body 329 of the slag scraping rod 321. The second gap B can be, for example, a through hole adjacent to the outer side wall 3285 of the buckle 328.
[0105] By setting the second gap B, the buckle 328 can still be firmly buckled with the clamping groove 314 even if it has a slight deformation in the radial direction of the hole wall 327 (or the pivot shaft 311), further ensuring the feasibility of assembly and the slag scraping function.
[0106] As mentioned above, when the slag scraping member 320 scrapes the beverage residue on the top of the brewing cylinder 310, the slag scraping member 320 swings in the first direction. When the slag scraping member 320 finishes scraping the slag, the slag scraping member 320 swings in the second direction. In order to prevent the slag scraping member 320 from having excessive displacement in any one of these two swinging directions, which may cause damage, in some embodiments, as Figure 3 shown, limiting portions 315 are provided on both circumferential sides of the outer side wall 312 of the brewing cylinder 310. As can be seen from the foregoing, the pivot shaft 311 is also provided on both circumferential sides of the outer side wall 312 of the brewing cylinder 310. Different from this, the limiting portions 315 and the pivot shaft 311 have a spacing in the lifting direction of the brewing cylinder 310. The size of this spacing is set to limit the slag scraping member 320 during the slag scraping movement of the slag scraping member 320. The size of the cross-section of the limiting portion 315 is set to limit the slag scraping member 320 during the reset movement of the slag scraping member 320. That is to say, the limiting portion 315 is provided for limiting the reset movement of the slag scraping member 320 and for limiting the slag scraping movement of the slag scraping member 320.
[0107] In the embodiment of the present application, by providing the limiting portion 315 on the brewing cylinder 310, the extreme positions of the slag scraping member 320 can be protected and restricted. These extreme positions include the extreme position during the reset movement (i.e., the initial position described above) and the extreme position during the slag scraping movement (i.e., the slag scraping extreme position described above), thereby ensuring that the slag scraping member 320 moves to the best position while preventing the slag scraping member 320 from having excessive displacement during movement, which may cause damage, or the slag scraping member 320 rotates too much and cannot be reset.
[0108] In the embodiment of the present application, the shape of the limiting portion 315 is not specifically limited. For example, the limiting portion 315 can be a cube or a cuboid. Another example is that the limiting portion 315 can be Figure 3 the cylinder shown. By setting the limiting portion 315 as a cylinder, the processing difficulty and processing cost of the limiting portion 315 can be reduced.
[0109] As described above, the slag scraping rod 321 may be provided with a second leg 325 and a third leg 326. The slag scraping member 320 may cooperate with the limiting portion 315 through the second leg 325 and the third leg 326 for limiting.
[0110] When the slag scraping member 320 performs a slag scraping movement, that is, when the slag scraping member 320 rotates in the first direction, if the limiting surface 3252 of the second leg 325 far from the base 330 abuts against the limiting portion 315, the limiting portion 315 will block the second leg 325, thereby causing the slag scraping member 320 to stop swinging. At this time, the slag scraping member 320 is in the slag scraping limit position. That is to say, by the abutment of the second leg 325 and the limiting portion 315, the limiting portion 315 can limit the slag scraping movement of the slag scraping member 320, avoiding damage to the slag scraping member 320 caused by excessive rotation angle.
[0111] When the slag scraping member 320 performs a reset movement, that is, when the slag scraping member 320 rotates in the second direction, if the surface 3261 of the third leg 326 close to the limiting portion 315 abuts against the limiting portion 315, the limiting portion 315 will block the third leg 326, thereby causing the slag scraping member 320 to stop swinging. At this time, the slag scraping member 320 is in the initial position. That is to say, by the abutment of the third leg 326 and the limiting portion 315, the limiting portion 315 can limit the reset movement of the slag scraping member 320, ensuring that the slag scraping member 320 can return to the accurate position.
[0112] By the cooperation of the second leg 325 and the third leg 326 with the limiting portion 315 for limiting, the structure of the slag scraping rod 321 can be effectively utilized to achieve limiting, and the limiting method is simple and effective.
[0113] In some embodiments, as Figure 3 shown, a convex portion 3262 is provided on the surface 3261 of the third leg 326 close to the limiting portion 315. The third leg 326 abuts against the limiting portion 315 through the convex portion 3262.
[0114] By providing the convex portion 3262, the dimensional accuracy requirements for the third leg 326 on the slag scraping member 320 and the limiting portion 315 on the brewing cylinder 310 can be reduced, and the processing cost and design difficulty are reduced.
[0115] It should be noted that, in the above specific embodiments, the various elements described can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present application does not separately describe various possible combination methods. For example, in some examples, a mating flange and a chute may be respectively provided on the outer periphery of the piston body and the inner wall of the piston head so that the piston can rotate relative to the piston body about the above axis.
[0116] It should be understood that multiple components and / or parts can be provided by a single integrated component or part. Alternatively, a single integrated component or part can be divided into multiple separate components and / or parts. The disclosure of "a" or "an" used to describe a component or part is not intended to exclude other components or parts.
[0117] It should be understood that although terms such as "first" or "second" etc. may be used in this application to describe various elements, these elements are not defined by these terms, and these terms are only used to distinguish one element from another.
[0118] The protection scope of this application is not limited to the above embodiments. Any person skilled in the art within the technical scope disclosed in this application can think of changes or substitutions, which should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.
Claims
1. A brewing device, characterized in that: include: Brewing cylinder; A scraper, comprising a scraper rod pivotally connected to the brewing cylinder; A base, wherein an actuating portion is disposed on the base, and when the scraper member descends to an actuating position along with the brewing cylinder, the actuating portion actuates the scraper member to pivot to scrape off beverage waste exposed from the top of the brewing cylinder, and the actuating position is a position where the actuating portion contacts the scraper member; The scraper rod is provided with a first leg extending along the descending direction of the brewing cylinder, the first leg includes an anti-pressure portion located at its end, the anti-pressure portion is arranged toward the base, and when the scraper is located in the actuating position, a clearance space is formed between the base and the anti-pressure portion.
2. The brewing device according to claim 1, characterized in that: Also includes: A frame, wherein the frame comprises a guide portion, wherein the guide portion extends from the base toward the ascending direction of the brewing cylinder, wherein the guide portion comprises a sliding guide surface and a recessed portion, wherein the recessed portion comprises a first connecting surface and a second connecting surface, wherein the first connecting surface is connected to the sliding guide surface, and the second connecting surface is connected to the base; Wherein, the first leg is located between the actuating portion and the sliding guide surface and the first leg is lifted and lowered against the sliding guide surface during the lifting movement; when the scraper is scraping, the first leg pivots through the recessed portion in a direction away from the frame; when the scraper is resetting, the first leg contacts the first connecting surface to reset the scraper to an initial position.
3. The brewing device according to claim 2, characterized in that: The first leg comprises a sliding surface, the sliding surface leans against the sliding guide surface when the scraper rod moves up and down, and the sliding guide surface contacts a portion of the sliding surface.
4. The brewing device according to claim 1, characterized in that: The pressure-proof portion is a sheet-like structure extending toward the base, or a cone-shaped structure with a cone tip toward the base, or a pointed structure with a tip toward the base.
5. The brewing device according to claim 1, characterized in that: The first leg comprises a connecting surface close to the actuating portion, the connecting surface is connected to the actuating surface, the connecting surface is connected to the sliding surface via an inclined surface, and the sliding surface and the inclined surface form the anti-pressure portion with a pointed structure.
6. The brewing device according to claim 1, characterized in that: Pivot shafts are provided on both circumferential sides of the outer side wall of the brewing cylinder, the scraping rod comprises a first scraping rod and a second scraping rod, the first scraping rod and the second scraping rod are connected by a scraping plate in the scraping member, the scraping plate is used to scrape off the beverage waste, the first scraping rod and the second scraping rod are provided with pivot holes, the pivot holes are pivotally connected to the pivot shaft to form that the first scraping rod and the second scraping rod are jointly pivoted to the brewing cylinder, wherein a buckle is provided on the hole wall of the pivot hole, and a clamping groove is provided on the outer side wall of the pivot shaft, and when the pivot shaft and the pivot hole are pivotally connected, the buckle is buckled in the clamping groove.
7. The brewing device according to claim 6, characterized in that: The clamping groove is located at one end of the pivot shaft close to the outer side wall of the brewing cylinder, and the buckle is located at one end of the hole wall of the pivot hole close to the outer side wall of the brewing cylinder.
8. The brewing device according to claim 6 or 7, characterized in that: The buckle includes an arc-shaped protrusion and a connecting portion, the arc-shaped protrusion is clamped with the clamping groove, the connecting portion is respectively connected to the hole wall and the arc-shaped protrusion in the axial direction of the hole wall, the buckle has a first gap with the hole wall at both ends in the circumferential direction of the hole wall, and a second gap is formed between the outer wall of the buckle and the rod body of the scraper rod.
9. The brewing device according to claim 1, characterized in that: Limiting parts are provided on both sides of the outer side wall of the brewing cylinder in the circumferential direction, and the limiting parts are used to limit the resetting movement of the scraping member and to limit the scraping movement of the scraping member.
10. The brewing device according to claim 9, characterized in that: The scraper rod is also provided with a second leg and a third leg, the first leg is connected to one end of the second leg and the second leg is actuated by the actuating portion to pivot the scraper, the other end of the second leg is connected to the third leg and the third leg extends along the rising direction of the brewing cylinder, when the second leg abuts against the limiting portion, the limiting portion limits the scraping movement of the scraper, and the third leg is provided with a protrusion, when the third leg abuts against the limiting portion through the protrusion, the limiting portion limits the resetting movement of the scraper.