Grinding mechanism and beverage preparation equipment

Abstract

The utility model relates to the technical field of grinding raw materials into powder, and discloses a grinding mechanism and beverage preparation equipment. The grinding mechanism comprises a shell assembly, a raw material box, a grinding assembly and an adjusting assembly. The shell assembly comprises a mounting part and a supporting part, a through hole is formed in the supporting part, and the bottom of the raw material box is supported by the supporting part and can communicate with the through hole. The grinding assembly comprises an upper grinding head and a lower grinding head, and a gap is formed between the upper grinding head and the lower grinding head so that raw materials can be ground into powder when the raw materials pass through the gap. The adjusting assembly is used for driving the upper grinding head to move vertically relative to the lower grinding head. The adjusting assembly comprises a joint section matched with the upper grinding head, the joint section is promoted to rotate when the adjusting assembly works, and the joint section has a joint state and a release state relative to the upper grinding head. In the release state, the upper grinding head is separated from the joint section and can be taken out through the through hole; and the lower grinding head can be taken out through the through hole after the upper grinding head is taken out. The upper grinding head and the lower grinding head can be cleaned and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of devices for grinding raw materials into powder materials, and particularly relates to a grinding mechanism and a beverage preparation device with such a grinding mechanism. Background Art

[0002] In a beverage preparation device such as a coffee machine, a grinding mechanism is usually adopted to grind raw materials such as coffee beans into powder materials, that is, coffee powder. The grinding mechanism includes an upper grinding head and a lower grinding head, and the raw materials are ground through cooperation.

[0003] However, the upper grinding head and the lower grinding head of the grinding mechanism in the related art are usually installed inside the beverage preparation device and cannot be taken out. This makes it impossible to thoroughly clean the powder materials remaining on the upper grinding head and the lower grinding head after the raw materials are ground. Over time, it is easy to cause the problem of blockage of the channel between the upper grinding head and the lower grinding head.

[0004] Therefore, it is necessary to provide a grinding mechanism and a beverage preparation device that can solve the above deficiencies. Summary of the Utility Model

[0005] The utility model aims to provide a grinding mechanism and a beverage preparation device to solve the technical problem that the grinding mechanism of the current beverage preparation device is not convenient to clean.

[0006] The utility model solves its technical problems by adopting the following technical solutions: A grinding mechanism includes a housing assembly, a raw material box, a grinding assembly, and an adjusting assembly. The housing assembly includes a mounting portion and a supporting portion, and the supporting portion is provided with a through hole. The raw material box is detachably mounted on the housing assembly in cooperation with the mounting portion, and the bottom of the raw material box is supported by the supporting portion and can communicate with the through hole. The grinding assembly includes an upper grinding head, a lower grinding head, and a first driving member; the first driving member is installed inside the housing assembly and is used to drive the lower grinding head to rotate; the upper grinding head is arranged around the lower grinding head and is located below the supporting portion, and there is a gap between the upper grinding head and the lower grinding head to grind the raw materials into powder materials when the raw materials pass through the gap. The adjusting assembly is arranged on the housing assembly and is used to drive the upper grinding head to move up and down relative to the lower grinding head, thereby adjusting the size of the gap. The adjusting assembly includes an engaging section that cooperates with the upper grinding head. When the adjusting assembly works, the engaging section is caused to rotate. The engaging section has an engaging state and a releasing state relative to the upper grinding head; in the engaging state, the engaging section cooperates with the upper grinding head and causes the upper grinding head to move up and down by rotation; in the releasing state, the upper grinding head is disengaged from the cooperation with the engaging section and can be taken out through the through hole; the lower grinding head is arranged to be able to be taken out through the through hole after the upper grinding head is taken out.

[0007] Optionally, the adjusting assembly includes an adjusting ring and a receiving cup, the adjusting ring being disposed around the receiving cup; the receiving cup houses the upper grinding head and the lower grinding head, and a clamping groove with an upward opening is provided on the side wall of the receiving cup. A convex block is provided on the outer side of the upper grinding head, and the convex block extends out of the receiving cup through the clamping groove; the engaging section is a spiral strip protruding from the inner side of the side wall of the adjusting ring, and the spiral strip forms a spiral groove, and the end of the convex block is engaged with the spiral groove; when the adjusting ring rotates to make the end of the convex block leave the spiral groove, the engaging section is in the released state.

[0008] Optionally, the adjusting assembly further includes an adjusting knob and an adjusting gear, the adjusting knob being located outside the housing assembly and connected to the adjusting gear; the adjusting gear is engaged with the adjusting ring through teeth, so that when the adjusting gear is rotated by the adjusting knob, the adjusting ring is driven to rotate by the adjusting gear.

[0009] Optionally, the housing assembly defines a placement space recessed from the outer periphery, and the placement space is for inserting a filtering assembly; the grinding mechanism further includes a bracket, and the bracket is mounted on the housing assembly and located above the placement space; a powder outlet pipe is provided at the bottom of the receiving cup, and the outlet end of the powder outlet pipe is connected to the bracket and faces the placement space.

[0010] Optionally, the grinding mechanism further includes a blocking assembly, the blocking assembly is disposed in the housing assembly and is configured to move back and forth relative to the outlet end of the powder outlet pipe to block or open the outlet end.

[0011] Optionally, the blocking assembly includes a second driving member, a transmission gear and a baffle, the baffle is provided with a rack and is disposed below the bracket, the transmission gear is engaged with the rack, the second driving member is used to drive the transmission gear to rotate, and the transmission gear drives the baffle to move back and forth by engaging with the rack, so that the baffle blocks or opens the outlet end.

[0012] Optionally, the part of the convex block located in the clamping groove includes a reinforcing rib, and the end of the convex block includes a plate-shaped body; and / or, the through hole includes a first part corresponding to the side wall of the upper grinding head and a second part corresponding to the convex block, and the second part is vertically aligned with the clamping groove.

[0013] Optionally, a clamping groove is provided on the circumferential side wall at the lower end of the raw material box, and the mounting portion includes a clamping block; when the raw material box rotates relative to the housing assembly in the first direction, the clamping groove is in snap-fit with the clamping block, so that the raw material box is mounted on the housing assembly; when the raw material box rotates relative to the housing assembly in the second direction opposite to the first direction, the clamping groove is disengaged from the clamping block, so that the raw material box is removed from the housing assembly.

[0014] The present utility model also adopts the following technical solutions to solve its technical problems: A beverage preparation device includes a filtration assembly, a brewing system, and a grinding mechanism according to any one of the above. The filtration assembly is detachably inserted on the housing assembly for receiving the powder material. The brewing system is disposed on the housing assembly for delivering water into the filtration assembly to prepare a beverage by mixing the water with the powder material.

[0015] Optionally, the brewing system includes a water tank, a heating element, a water delivery pipe, and a water outlet box. The water tank and the heating element are disposed on the housing assembly. The heating element is configured to heat the water from the water tank into hot water. The water delivery pipe is connected between the heating element and the water outlet box. The water outlet end of the water outlet box is connected to the bracket and faces the placement space; and / or, the beverage preparation device is a coffee machine.

[0016] The beneficial effects of the present utility model are: In the grinding mechanism and the beverage preparation device of this embodiment, since the raw material box is detachably mounted on the housing assembly, and the engaging section of the adjusting assembly cooperating with the upper grinding head has a released state relative to the upper grinding head, when the grinding is completed, the raw material box can be removed first, and then the upper grinding head and the lower grinding head can be taken out through the through hole in sequence. This facilitates the cleaning and other processing of the upper grinding head and the lower grinding head stained with powder material. Description of the Drawings

[0017] One or more embodiments are illustrated by corresponding drawings. These illustrative descriptions do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the figures do not constitute a proportional limitation.

[0018] Figure 1 It is an assembled schematic diagram of a beverage preparation device provided by an embodiment of the present utility model;

[0019] Figure 2 is Figure 1 a three-dimensional exploded schematic diagram of the illustrated beverage preparation device;

[0020] Figure 3 is Figure 1 a state schematic diagram of the illustrated beverage preparation device;

[0021] Figure 4 Another schematic diagram of the state of the beverage preparation device shown; Figure 1 Another schematic diagram of the state of the beverage preparation device shown;

[0022] Figure 5 Another enlarged schematic diagram of a part of the structure of the beverage preparation device shown; Figure 2 Another enlarged schematic diagram of a part of the structure of the beverage preparation device shown;

[0023] Figure 6 Another partial sectional view of the beverage preparation device shown; Figure 1 Another partial sectional view of the beverage preparation device shown; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is expressed as "fixed to" another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. When an element is expressed as "connected to" another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween. The terms "vertical", "horizontal", "left", "right", "inner", "outer" and similar expressions used in this specification are only for the purpose of illustration.

[0025] In addition, in order to easily describe the relationship between one component or a component and another component or a component shown in the drawings, spatial relative terms such as "lower part", "upper part" and similar terms may be used herein. It should be understood that the spatial relative terms are intended to cover different orientations of the device in use and operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is inverted, the component described as being "lower" than another component or a component can then be oriented "above" the other component or a component.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0027] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] Referring to Figure 1 and Figure 2 shown, Figure 1 An assembly schematic diagram of a beverage preparation device 300 provided by an embodiment of the present invention, Figure 2 Another Figure 1Exploded perspective view of the illustrated beverage preparation device 300. In this embodiment, the beverage preparation device 300 may include a grinding mechanism 100, a filtering assembly 201, and a brewing system 100F. The grinding mechanism 100 is used to grind raw materials into powder, for example, grind coffee beans into coffee powder. The grinding mechanism 100 includes a housing assembly 100A, and the filtering assembly 201 is detachably inserted on the housing assembly 100A for receiving the powder. The brewing system 100F is disposed on the housing assembly 100A for delivering water into the filtering assembly 201 to prepare a beverage by mixing water and the powder.

[0029] In one embodiment, as shown in combination with Figure 3 and Figure 4 shown, Figure 3 is Figure 1 a schematic diagram of a state of the illustrated beverage preparation device 300, Figure 4 is Figure 1 another schematic diagram of a state of the illustrated beverage preparation device 300; the housing assembly 100A includes a mounting portion 104A and a support portion 104B, and the support portion 104B is provided with a through hole 104C. The grinding mechanism 100 further includes a raw material bin 102, a grinding assembly 100B, and an adjustment assembly 100C. The mounting portion 104A and the support portion 104B can integrally form a receiving groove for receiving the lower end of the raw material bin 102.

[0030] The raw material bin 102 is detachably mounted on the housing assembly 100A in cooperation with the mounting portion 104A, and the bottom of the raw material bin 102 is supported by the support portion 104B and can communicate with the through hole 104C. The raw material bin 102 can be a cylindrical container with an open top for holding raw materials such as coffee beans and delivering the raw materials to the grinding assembly 100B through the opening at its bottom and the through hole 104C. The top opening of the raw material bin 102 can be provided with a raw material bin cover 101.

[0031] The grinding assembly 100B includes an upper grinding head 112, a lower grinding head 113, and a first driving member 116. The first driving member 116 is installed inside the housing assembly 100A for driving the lower grinding head 113 to rotate. The upper grinding head 112 is disposed around the lower grinding head 113 and is located below the support portion 104B. There is a gap between the upper grinding head 112 and the lower grinding head 113 to grind the raw materials into powder when the raw materials pass through the gap. The first driving member 116 can be a gearbox structure. The top of the upper grinding head 112 can have an opening for receiving the raw materials. The upper grinding head 112 can be cylindrical and is provided with grinding teeth on the inner surface of the side wall; the circumferential outer side of the lower grinding head 113 can be provided with grinding teeth.

[0032] The adjustment assembly 100C is disposed on the housing assembly 100A for driving the upper grinding head 112 to move up and down relative to the lower grinding head 113, thereby adjusting the size of the gap. The size of the gap determines the fineness of the ground powder.

[0033] Among them, in combination with Figure 5 as shown Figure 5 is Figure 2 an enlarged schematic view of a part of the structure of the beverage mixing device 300 shown; the adjusting assembly 100C includes an engaging section 114A that cooperates with the upper grinding head 112. When the adjusting assembly 100C works, it causes the engaging section 114A to rotate. The engaging section 114A has an engaging state and a releasing state relative to the upper grinding head 112. In the engaging state (see Figure 3 ), the engaging section 114A cooperates with the upper grinding head 112 and causes the upper grinding head 112 to move up and down by rotation. For example, the engaging section 114A can generate an upward or downward force on the upper grinding head 112 during rotation, and by restricting the rotation of the upper grinding head 112, the up and down movement of the upper grinding head 112 can be achieved. In the releasing state (see Figure 4 ), the upper grinding head 112 is disengaged from the cooperation with the engaging section 114A and can be taken out through the through hole 104C. The lower grinding head 113 is arranged to be able to be taken out through the through hole 104C after the upper grinding head 112 is taken out.

[0034] In the grinding mechanism 100 of the above embodiment, since the raw material box 102 is detachably mounted on the housing assembly 100A, and the engaging section 114A of the adjusting assembly 100C that cooperates with the upper grinding head 112 has a releasing state relative to the upper grinding head 112, when the grinding is finished, the raw material box 102 can be removed first, and then the upper grinding head 112 and the lower grinding head 113 can be taken out through the through hole 104C in sequence. This facilitates the cleaning and other treatments of the upper grinding head 112 and the lower grinding head 113 stained with powder.

[0035] In some embodiments, in combination with Figures 2 to 5As shown, the adjustment assembly 100C includes an adjustment ring 114 and a receiving cup 115. The adjustment ring 114 is disposed around the receiving cup 115. The receiving cup 115 houses the upper grinding head 112 and the lower grinding head 113, and thus can collect the ground powder. A card slot 115A with an upward opening is provided on the side wall of the receiving cup 115. A convex block 112A is provided on the outer side of the upper grinding head 112, and the convex block 112A extends out of the receiving cup 115 through the card slot 115A. The engaging section 114A is a spiral strip protruding from the inner side of the side wall of the adjustment ring 114. The spiral strip forms a spiral groove 114B, and the end of the convex block 112A cooperates with the spiral groove 114B. When the adjustment ring 114 rotates such that the end of the convex block 112A leaves the spiral groove 114B, the engaging section 114A is in a released state. The upper surface of the adjustment ring 114 can abut against the lower surface of the support portion 104B to limit the adjustment ring 114, that is, to prevent its up and down movement. The receiving cup 115 can be mounted on the first driving member 116. An annular flange can be provided on the outer periphery of the receiving cup 115 to support the adjustment ring 114. In this way, an upward or downward force can be provided to the convex block 112A through the engaging section 114A in the form of a spiral strip, and combined with the up and down guiding action of the card slot 115A, the up and down movement of the upper grinding head 112 can be realized; and when the engaging section 114A rotates to the end of its upper part and no longer contacts the convex block 112A, the engaging section 114A is in a released state, and thus no longer generates a binding force on the upward movement of the convex block 112A. At this time, the upper grinding head 112 can be taken out through the through hole 104C.

[0036] In some embodiments, in combination Figures 2 to 6 as shown Figure 6 is Figure 1 a partial cross-sectional view of the beverage preparation device 300 shown; the adjustment assembly 100C further includes an adjustment knob 103 and an adjustment gear 107. The adjustment knob 103 is located outside the housing assembly 100A and is connected to the adjustment gear 107. The adjustment gear 107 and the adjustment ring 114 are in tooth engagement, so that when the adjustment gear 107 is rotated by turning the adjustment knob 103, the adjustment ring 114 is driven to rotate by the adjustment gear 107. The adjustment knob 103 can be twisted by the user to rotate the adjustment gear 107. The adjustment gear 107 can have outer peripheral teeth, and the adjustment ring 114 can also have outer peripheral teeth, thereby realizing the meshing of the two. In this way, the rotational drive can be conveniently realized through the gear structure.

[0037] In some embodiments, in combination Figures 1 to 5As shown, the housing assembly 100A defines a placement space 100D that is recessed from the outer periphery. The placement space 100D is used to insert the filter assembly 201. The grinding mechanism 100 further includes a bracket 127. The bracket 127 is mounted on the housing assembly 100A and is located above the placement space 100D. The bottom of the receiving cup 115 is provided with a powder outlet pipe 115B. The outlet end 115C of the powder outlet pipe 115B is connected to the bracket 127 and faces the placement space 100D. Further, the seal between the outlet end 115C and the bracket 127 can be achieved through a seal 125. In this way, the ground powder can be conveniently collected through the receiving cup 115 and conveyed into the filter assembly 201 through the powder outlet pipe 115B at its bottom.

[0038] In some embodiments, in combination with Figure 2 As shown, the grinding mechanism 100 further includes a blocking assembly 100E. The blocking assembly 100E is disposed within the housing assembly 100A and is configured to move back and forth relative to the outlet end 115C of the powder outlet pipe 115B to block or open the outlet end 115C. In this way, during grinding, the outlet end 115C can be opened by the blocking assembly 100E to facilitate the powder falling into the filter assembly 201. During subsequent brewing, the outlet end 115C can be blocked by the blocking assembly 100E to prevent water vapor from reversely entering the receiving cup 115 through the outlet end 115C and causing the powder to stick.

[0039] In some embodiments, in combination with Figure 2 As shown, the blocking assembly 100E includes a second driving member 119, a transmission gear 123, and a baffle 130. The baffle 130 is provided with a rack 130A and is disposed below the bracket 127. The transmission gear 123 meshes with the rack 130A. The second driving member 119 is used to drive the transmission gear 123 to rotate. The transmission gear 123 drives the baffle 130 to move back and forth by meshing with the rack 130A to block or open the outlet end 115C by the baffle 130. The second driving member 119 can be a synchronous motor. Further, a front pressing block 135 and a rear pressing block 136 can be installed below the bracket 127. The two form a guide rail to cooperate with the baffle 130 to guide the back-and-forth movement of the baffle 130. In this way, the back-and-forth movement of the baffle 130 can be conveniently and automatically achieved.

[0040] In some embodiments, in combination with Figure 5 As shown, the portion of the convex block 112A located within the card slot 115A includes a reinforcing rib 112B, and the end of the convex block 112A includes a plate-shaped body 112C. In this way, the structural strength of the convex block 112A can be improved through the reinforcing rib 112B, increasing the service life; the plate-shaped body 112C can facilitate sliding within the spiral groove 114B.

[0041] In some embodiments, in combination with Figure 3 andFigure 4 As shown, the through hole 104C includes a first portion 104D corresponding to the side wall of the upper grinding head 112 and a second portion 104E corresponding to the bump 112A, and the second portion 104E is vertically aligned with the card slot 115A. In this way, when it is necessary to remove the upper grinding head 112, the first portion 104D allows the side wall portion of the upper grinding head 112 to pass through it, and the second portion 104E allows the bump 112A to pass through it, that is, allows the entire upper grinding head 112 to pass through the through hole 104C; moreover, by vertically aligning the second portion 104E with the card slot 115A, the bump 112A is positioned to be vertically aligned with the second portion 104E as well, which facilitates the subsequent passage of the bump 112A through the second portion 104E.

[0042] In some embodiments, in combination with Figures 2 to 4 As shown, a snap groove 102A is provided on the circumferential side wall at the lower end of the raw material box 102, and the mounting portion 104A includes a snap block 104F. When the raw material box 102 rotates relative to the housing assembly 100A in the first direction A1, the snap groove 102A is snap-fitted with the snap block 104F, so that the raw material box 102 is mounted on the housing assembly 100A. When the raw material box 102 rotates relative to the housing assembly 100A in the second direction A2 opposite to the first direction A1, the snap groove 102A is disengaged from the snap block 104F, so that the raw material box 102 is removed from the housing assembly 100A. In this way, the detachable connection between the raw material box 102 and the housing assembly 100A can be realized through the snap structure.

[0043] In some embodiments, in combination with Figures 1 to 6 As shown, the housing assembly 100A may include a top cover 104, a lower fuselage 134, and a base 138. The lower fuselage 134 is mounted on the base 138, and the top cover 104 is mounted on the lower fuselage 134. Both the mounting portion 104A and the support portion 104B are provided on the top cover 104. The placement space 100D may be formed on the same side of the lower fuselage 134 and the base 138. Inside the placement space 100D, a glass cup assembly 202 may also be placed. The glass cup assembly 202 is located below the filtering assembly 201 to collect the brewed beverage. In addition, a top decorative cover 133 may be provided on the side of the lower fuselage 134 that forms the placement space 100D. The lamp panel 132 may be mounted on the top decorative cover 133 to display the working state of the beverage brewing device 300, and a transparent plate 131 may be provided outside it. In this way, the structural design of the housing assembly 100A and the light display can be realized.

[0044] In some embodiments, in combination with Figure 2As shown, an adjusting knob ejector rod 105 and an adjusting knob ejector rod spring 106 can be provided on the housing assembly 100A, for example, on the top cover 104. The adjusting knob ejector rod spring 106 drives the adjusting knob ejector rod 105 towards the adjusting knob 103. A plurality of mating grooves can be provided on the lower side of the adjusting knob 103 to latch and position the adjusting knob 103 after it rotates to a certain position.

[0045] In some embodiments, in combination with Figure 2 As shown, a microswitch ejector rod 108, a microswitch ejector rod spring 109, a microswitch fixing bracket 110, and a first microswitch 111 can be provided on the housing assembly 100A. The microswitch fixing bracket 110 is provided on the top cover 104, for example. The microswitch ejector rod 108, the microswitch ejector rod spring 109, and the first microswitch 111 can be provided on the microswitch fixing bracket 110. The microswitch ejector rod spring 109 pushes the top end of the microswitch ejector rod 108 out of the upper surface of the support portion 104B to be actuated by the bottom of the raw material box 102 in place. In this way, it is possible to detect whether the raw material box 102 is correctly assembled through the microswitch ejector rod 108 and the first microswitch 111.

[0046] In some embodiments, in combination with Figure 2 As shown, an exhaust silica gel tube 120 can be provided on the housing assembly 100A. One end of it is installed on the bracket 127 through a fixing member 122 and communicates with the placement space 100D, and the other end communicates with the outside through a through hole in the top cover 104 of the housing assembly 100A. In this way, the steam in the filter assembly 201 in the placement space 100D can be discharged to the outside.

[0047] In some embodiments, in combination with Figure 2 As shown, a positioning block 121 and a second microswitch 124 can be provided on the housing assembly 100A. The positioning block 121 can be installed on the second driving member 119 to rotate with the second driving member 119. There can be two second microswitches 124, and they can be installed on the bracket 127. When the positioning block 121 rotates left and right with the second driving member 119, the two second microswitches 124 can be actuated respectively. In this way, the rotation direction of the second microswitch 124 can be controlled, and further the movement range of the baffle 130 can be controlled.

[0048] In some embodiments, in combination with Figures 1 to 4As shown, the brewing system 100F includes a water tank 137, a heating element (not shown in the figure), a water delivery pipe 117, and a water outlet box 118. The water tank 137 and the heating element are disposed on the housing assembly 100A. The heating element is configured to heat the water from the water tank 137 into hot water. The water delivery pipe 117 is connected between the heating element and the water outlet box 118. The water outlet end 118A of the water outlet box 118 is connected to the bracket 127 and faces the placement space 100D. Further, the seal between the water outlet end 118A and the bracket 127 can be achieved by a sealant 126. A shower head cover 129 can be disposed on the lower side of the bracket 127 to evenly sprinkle hot water towards the filter assembly 201. The seal between the shower head cover 129 and the bracket 127 can also be achieved by a sealing ring 128. In this way, the water can be heated by the brewing system 100F and delivered to the filter assembly 201 in the placement space 100D.

[0049] In some embodiments, the beverage preparation device 300 is implemented as a coffee machine. Correspondingly, the powder used therein is the powder ground from coffee beans.

[0050] In some embodiments, the beverage preparation device 300 further includes a control system for controlling the operation of the above-mentioned first driving member 116, second driving member 119, microswitch and other electrical components.

[0051] In an embodiment of the coffee machine, one operation mode is as follows. The coffee machine is powered on, and coffee beans are put into the raw material box 102. Then, by rotating the adjustment knob 103, the adjustment gear 107 is rotated to drive the adjustment ring 114 to press down the upper grinding head 112, so as to adjust the fineness of the coffee powder by narrowing the gap between the upper grinding head 112 and the lower grinding head 113. Then, the coffee machine is started, and the ground coffee powder will fall into the filter assembly 201 through the powder outlet pipe 115B. Then, the heating element in the base 138 will heat the water in the water tank 137 and spray it into the filter assembly 201 to brew coffee. After the coffee machine finishes running, the raw material box 102 can be rotated and taken out along the second direction A2, and then the adjustment knob 103 is rotated in the reverse direction to rotate the adjustment gear 107 to drive the adjustment ring 114 to lift the upper grinding head 112 upward. When rotated to the end, the upper grinding head 112 and the lower grinding head 113 can be taken out of the coffee machine for cleaning, and the receiving cup 115 can also be cleaned. This structure of the present application solves the problems that after the traditional coffee machine grinds coffee beans, the coffee powder remains on the grinding head and cannot be thoroughly cleaned, and the blockage caused after a long time.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A grinding mechanism, characterized in that include: A housing assembly (100A) comprises a mounting portion (104A) and a supporting portion (104B), wherein the supporting portion (104B) is provided with a through hole (104C); A raw material box (102) is detachably mounted on the housing assembly (100A) in cooperation with the mounting portion (104A); the bottom of the raw material box (102) is supported by the supporting portion (104B) and is in communication with the through hole (104C); A grinding assembly (100B) comprises an upper grinding head (112), a lower grinding head (113) and a first driving member (116); the first driving member (116) is installed in the housing assembly (100A) and is used to drive the lower grinding head (113) to rotate; the upper grinding head (112) is arranged around the lower grinding head (113) and is located below the support portion (104B); there is a gap between the upper grinding head (112) and the lower grinding head (113), so that the raw material is ground into powder when the raw material passes through the gap; an adjustment component (100C), arranged on the housing component (100A), and used for driving the upper grinding head (112) to move up and down relative to the lower grinding head (113), thereby adjusting the size of the gap; The adjusting component (100C) comprises a coupling section (114A) cooperating with the upper grinding head (112); when the adjusting component (100C) is in operation, the coupling section (114A) is caused to rotate; the coupling section (114A) has a coupling state and a release state relative to the upper grinding head (112); in the coupling state, the coupling section (114A) is cooperating with the upper grinding head (112) and causes the upper grinding head (112) to move up and down by rotation; in the release state, the upper grinding head (112) is disengaged from the coupling with the coupling section (114A) and can be taken out through the through hole (104C); the lower grinding head (113) is configured to be taken out through the through hole (104C) after the upper grinding head (112) is taken out.

2. The grinding mechanism according to claim 1, characterized in that: The adjustment assembly (100C) comprises an adjustment ring (114) and a receiving cup (115), wherein the adjustment ring (114) is arranged around the receiving cup (115); The receiving cup (115) receives the upper grinding head (112) and the lower grinding head (113); a side wall of the receiving cup (115) is provided with a slot (115A) opening upward; a convex block (112A) is provided on the outer side of the upper grinding head (112); and the convex block (112A) extends out of the receiving cup (115) through the slot (115A); The engaging section (114A) is a spiral strip protruding from the inner side of the side wall of the adjusting ring (114), the spiral strip forming a spiral groove (114B), and the end of the protrusion (112A) cooperates with the spiral groove (114B); when the adjusting ring (114) rotates so that the end of the protrusion (112A) leaves the spiral groove (114B), the engaging section (114A) is in the released state.

3. The grinding mechanism according to claim 2, characterized in that: The adjustment assembly (100C) further comprises an adjustment knob (103) and an adjustment gear (107); the adjustment knob (103) is located outside the housing assembly (100A) and is connected to the adjustment gear (107); the adjustment gear (107) and the adjustment ring (114) cooperate through gear teeth, so that when the adjustment gear (107) is rotated by the adjustment knob (103), the adjustment gear (107) drives the adjustment ring (114) to rotate.

4. The grinding mechanism according to claim 2, characterized in that: The housing component (100A) defines a placement space (100D) recessed from the outer periphery, and the placement space (100D) is used to insert the filter component (201); The grinding mechanism further comprises a bracket (127), wherein the bracket (127) is mounted on the housing assembly (100A) and is located above the placement space (100D); A powder outlet pipe (115B) is provided at the bottom of the receiving cup (115), and an outlet end (115C) of the powder outlet pipe (115B) is connected to the bracket (127) and faces the placement space (100D).

5. The grinding mechanism according to claim 4, characterized in that: The grinding mechanism further comprises a plugging assembly (100E), which is arranged in the shell assembly (100A) and is configured to move back and forth relative to the outlet end (115C) of the powder outlet pipe (115B) to plug or open the outlet end (115C).

6. The grinding mechanism according to claim 5, characterized in that: The blocking assembly (100E) includes a second driving member (119), a transmission gear (123) and a baffle (130); the baffle (130) is provided with a rack (130A) and is arranged below the bracket (127); the transmission gear (123) is meshed with the rack (130A); the second driving member (119) is used to drive the transmission gear (123) to rotate; the transmission gear (123) drives the baffle (130) to move back and forth by meshing with the rack (130A), so that the baffle (130) blocks or opens the outlet end (115C).

7. The grinding mechanism according to claim 2, characterized in that: The portion of the protrusion (112A) located in the slot (115A) includes a reinforcing rib (112B), and the end of the protrusion (112A) includes a plate-shaped body (112C); and / or The through hole (104C) comprises a first portion (104D) corresponding to the side wall of the upper grinding head (112) and a second portion (104E) corresponding to the protrusion (112A), and the second portion (104E) is aligned with the slot (115A) in a vertical direction.

8. The grinding mechanism according to any one of claims 1 to 7, characterized in that: A locking groove (102A) is provided on the circumferential side wall of the lower end of the raw material box (102), and the mounting portion (104A) includes a locking block (104F); When the raw material box (102) rotates relative to the shell assembly (100A) along a first direction (A1), the engaging groove (102A) and the engaging block (104F) are engaged with each other, so that the raw material box (102) is installed on the shell assembly (100A); When the raw material box (102) rotates relative to the shell assembly (100A) in a second direction (A2) opposite to the first direction (A1), the engaging groove (102A) and the engaging block (104F) disengage, so that the raw material box (102) is removed from the shell assembly (100A).

9. A beverage preparation device, characterized in that include: The grinding mechanism according to any one of claims 1 to 8; A filter assembly (201) is detachably inserted into the housing assembly (100A) and is used to receive the powder; and The brewing system (100F) is arranged on the housing component (100A) and is used to transport water into the filtering component (201) so that the water and the powdered material are mixed to produce a beverage.

10. The beverage preparation device according to claim 9, characterized in that: The brewing system (100F) comprises a water tank (137), a heating element, a water delivery pipe (117) and a water outlet box (118); the water tank (137) and the heating element are arranged on the housing assembly (100A); the heating element is used to heat water from the water tank (137) into hot water; the water delivery pipe (117) is connected between the heating element and the water outlet box (118); a water outlet end (118A) of the water outlet box (118) is connected to the bracket (127) and faces the placement space (100D); and / or The beverage preparation device is a coffee machine.

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