Automatic coffee brewing mechanism and coffee machine

Abstract

The present invention relates to the field of coffee machines, and discloses an automatic coffee brewing mechanism and a coffee machine, including a mounting bracket, a brewing cup, a water supply pipe, a driving device and a slag discharge assembly; a powder receiving station and an extraction station are arranged on the mounting bracket; an extraction chamber is arranged inside the brewing cup, and a powder inlet is arranged on the extraction chamber; a water supply pipe is arranged on the mounting bracket, and is used to supply water to the extraction chamber; a driving device is arranged on the mounting bracket, and the driving device is transmission-connected with the brewing cup, and is used to drive the brewing cup to reciprocate between the powder receiving station and the extraction station; a slag discharge assembly is arranged on the brewing cup; when the brewing cup is located at the extraction station, the water supply pipe is connected with the brewing cup; and the slag discharge assembly is used to discharge the slag in the brewing cup. Thus, by utilizing the linkage design of the slag discharge assembly, the automatic operations of powder receiving, extraction, slag discharge and resetting can be realized with a single driving device.

Description

Technical Field

[0001] The invention relates to the field of coffee machines, and in particular to an automatic coffee brewing mechanism and a coffee machine. Background Art

[0002] A fully automatic coffee machine is a machine that can make a cup of coffee by just pressing a button, automating the entire process from grinding coffee beans to brewing coffee with hot water.

[0003] A fully automatic coffee machine generally has four operations: powder receiving, extraction, slag discharge and reset. To achieve the above operations, it is necessary to set up a set of drive devices to drive and control the powder receiving and extraction operations, and another set of drive devices to drive and control the slag discharge operation. In this way, at least two or more sets of drive devices are required to achieve the automatic operations of powder receiving, extraction, slag discharge and reset. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] The present invention provides an automatic coffee brewing mechanism, comprising a mounting bracket, a brewing cup, a water supply pipe, a driving device and a slag discharge assembly; the mounting bracket is provided with a powder receiving station and an extraction station; an extraction chamber is provided inside the brewing cup, and a powder inlet is provided on the extraction chamber; the water supply pipe is used to supply water to the extraction chamber; the driving device is transmission-connected with the brewing cup, and is used to drive the brewing cup to reciprocate between the powder receiving station and the extraction station; the slag discharge assembly is provided on the brewing cup; when the brewing cup is located at the extraction station, the water supply pipe is connected with the brewing cup; the slag discharge assembly is used to discharge slag in the brewing cup.

[0006] Therefore, after the brewing cup is driven by the driving device to receive powder at the powder receiving station on the mounting bracket, it is moved to the extraction station and water is injected into the extraction chamber through the water supply pipe to realize the extraction operation. When the brewing cup is retreated, the slag discharge component is linked to the movement of the brewing cup itself to perform the slag discharge operation, so that when the brewing cup is reset to the powder receiving station, the extraction chamber can perform the next powder receiving operation. Therefore, the linkage design of the slag discharge component is utilized to realize the automatic operations of powder receiving, extraction, slag discharge and reset in the case of a single driving device.

[0007] In one embodiment, the slag discharge assembly includes a lifting bottom plate and a lifting bracket, wherein the lifting bottom plate is disposed at the bottom of the extraction chamber and can be moved upward to the top of the brewing cup, and the lifting bracket is disposed at the bottom of the lifting bottom plate and at least a portion of the structure is exposed outside the brewing cup;

[0008] The brewing cup is used to link with the lifting bracket to drive the lifting bottom plate to move upward to discharge slag, or the brewing cup is used to link with the lifting bracket to drive the lifting bottom plate to move downward.

[0009] In one embodiment, the mounting bracket is provided with a first horizontal guide groove, a lifting guide groove and a sliding support plate, the first horizontal guide groove is provided with the powder receiving station, the lifting guide groove is communicated with the first horizontal guide groove, the sliding support plate is located below the lifting guide groove, the bottom of the brewing cup is provided with a limiting structure to prevent the lifting bottom plate from falling off the bottom of the brewing cup, the lifting bracket includes a lifting top rod and a supporting foot, the lifting top rod passes through the limiting structure and is connected to the bottom of the lifting bottom plate, the supporting foot is provided at the bottom of the lifting top rod, at least part of the structure of the supporting foot is exposed outside the brewing cup, an elastic guide inclined surface is provided on the supporting foot, the elastic guide inclined surface is used to make the supporting foot retract when pressed, and the sliding support plate is used to compress the elastic guide inclined surface inwardly and to support the supporting foot.

[0010] In one embodiment, the supporting foot includes a mounting portion, a deformation portion and a guide portion, the mounting portion is connected to the bottom of the lifting top rod, the deformation portion is connected between the mounting portion and the guide portion, and the guide portion is provided with the elastic guide slope.

[0011] In one embodiment, a fixed baffle is further provided on the mounting bracket, and the fixed baffle is located on one side of the powder receiving station. A mounting arm is provided on the surface of the brewing cup, and a reset link is rotatably connected to the mounting arm. The reset link is exposed outside the brewing cup, and one end of the reset link is movably connected to the lifting bracket, and the other end of the reset link is used to abut against the fixed baffle, so that the reset link rotates to drive the lifting base plate to move downward.

[0012] In one embodiment, a three-way pipe is provided on the surface of the brewing cup, and the three-way pipe is provided with a water inlet, a water supply port and a drain port. The water supply port is connected to the bottom of the extraction chamber, and the water supply pipe is plugged in and out of the water inlet. The water supply pipe is used to close the drain port and supply water to the water supply port, or the water supply pipe opens the drain port to allow the water in the extraction chamber to be discharged from the drain port.

[0013] In one embodiment, a water inlet channel and a drainage channel are provided inside the three-way pipe, the water inlet channel is provided with the water inlet, the drainage channel is provided with the drainage outlet, the water supply pipe has a first plug-in section and a second plug-in section, the first plug-in section is used to be inserted into the drainage channel and seal with the inner wall of the drainage channel, and the second plug-in section is used to be inserted into the water inlet channel and seal with the inner wall of the water inlet channel.

[0014] In one embodiment, a connecting rod transmission structure is provided between the driving device and the brewing cup, and the driving device drives the brewing cup to reciprocate in the first horizontal guide groove and the lifting guide groove through the connecting rod transmission structure.

[0015] In one embodiment, a right angle or an obtuse angle is formed between the lifting guide groove and the first horizontal guide groove, and the mounting bracket is further provided with a second horizontal guide groove having the same guiding direction as the first horizontal guide groove, the second horizontal guide groove is located below the first horizontal guide groove, and the length of the second horizontal guide groove is greater than that of the first horizontal guide groove;

[0016] The connecting rod transmission structure includes a first sliding member, a second sliding member and a transmission connecting rod, the first sliding member is arranged on the surface of the brewing cup, the first sliding member is slidably connected in the first horizontal guide groove, the first sliding member is arranged close to the lifting guide groove, the second sliding member is slidably connected in the second horizontal guide groove, and the second sliding member is arranged away from the lifting guide groove, the driving device is transmission-connected to the second sliding member, one end of the transmission connecting rod is rotationally connected to the first sliding member, and the other end of the transmission connecting rod is rotationally connected to the second sliding member.

[0017] The present invention further provides a coffee machine, comprising a machine body, on which the above-mentioned automatic coffee brewing mechanism is arranged.

[0018] Therefore, after the brewing cup is driven by the driving device to receive powder at the powder receiving station on the mounting bracket, it is moved to the extraction station and water is injected into the extraction chamber through the water supply pipe to realize the extraction operation. When the brewing cup is retreated, the slag discharge component is linked to the movement of the brewing cup itself to perform the slag discharge operation, so that when the brewing cup is reset to the powder receiving station, the extraction chamber can perform the next powder receiving operation. Therefore, the linkage design of the slag discharge component is utilized to realize the automatic operations of powder receiving, extraction, slag discharge and reset in the case of a single driving device.

[0019] The automatic coffee brewing mechanism provided by the present invention has at least the following beneficial effects: the present invention drives the brewing cup to receive powder at the powder receiving station on the mounting bracket through a driving device, and then moves it to the extraction station to inject water into the extraction chamber through a water supply pipe to realize the extraction operation; when the brewing cup retreats, the slag discharge component is linked to the movement of the brewing cup itself to perform the slag discharge operation, so that when the brewing cup is reset to the powder receiving station, the extraction chamber can perform the next powder receiving operation, thereby utilizing the linkage design of the slag discharge component to realize the automatic operations of powder receiving, extraction, slag discharge and reset under the condition of a single driving device.

[0020] The present invention also provides a coffee machine, which has at least the following beneficial effects: after the brewing cup is driven by a driving device to receive powder at a powder receiving station on a mounting bracket, it is moved to an extraction station and water is injected into an extraction chamber through a water supply pipe to implement an extraction operation; when the brewing cup is withdrawn, the slag discharge component is linked to the movement of the brewing cup itself to perform a slag discharge operation, so that when the brewing cup is reset to the powder receiving station, the extraction chamber can perform the next powder receiving operation, thereby utilizing the linkage design of the slag discharge component to implement the automatic operations of powder receiving, extraction, slag discharge and reset under the condition of a single driving device.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 It is a three-dimensional structural diagram of the automatic coffee brewing mechanism of the present invention in a first state;

[0024] Figure 2 It is a three-dimensional structural diagram of the automatic coffee brewing mechanism of the present invention in the second state;

[0025] Figure 3 It is a three-dimensional structural diagram of the mounting side plate in the automatic coffee brewing mechanism of the present invention;

[0026] Figure 4 It is a side view structural diagram of the automatic coffee brewing mechanism of the present invention in a second state with part of the structure hidden;

[0027] Figure 5 It is a three-dimensional structural diagram of the lifting bracket and the sliding support plate in the automatic coffee brewing mechanism of the present invention;

[0028] Figure 6 It is a three-dimensional structural diagram of the automatic coffee brewing mechanism of the present invention in a first state with part of the structure hidden;

[0029] Figure 7 This is an internal structure diagram of the automatic coffee brewing mechanism of the present invention in a first state with part of the structure hidden;

[0030] Figure 8 It is a three-dimensional structural diagram of the reset connecting rod in the automatic coffee brewing mechanism of the present invention;

[0031] Fig. 9 It is a diagram of the internal structure of the automatic coffee brewing mechanism of the present invention when the brewing cup is connected to the water supply pipe;

[0032] Fig.10 It is a three-dimensional structural diagram of the automatic coffee brewing mechanism of the present invention in a state where the brewing cup is connected to the water supply pipe;

[0033] Fig.11 It is a three-dimensional structural diagram of the automatic coffee brewing mechanism of the present invention in a state where the brewing cup and the water supply pipe are separated;

[0034] Fig.12 This is a diagram of the internal structure of a brewing cup in the automatic coffee brewing mechanism of the present invention;

[0035] Fig.13 It is a three-dimensional structural diagram of a water supply pipe in the automatic coffee brewing mechanism of the present invention;

[0036] Fig.14 It is a three-dimensional structural diagram of the automatic coffee brewing mechanism of the present invention in a second state with part of the structure hidden;

[0037] Fig.15 It is a schematic diagram of the assembly of the reset connecting rod and the groove in the automatic coffee brewing mechanism of the present invention.

[0038] In the attached drawings: 100-mounting bracket; 200-brewing cup; 300-water supply pipe; 2001-extraction chamber; 3-lifting bottom plate; 4-lifting bracket; 41-lifting top rod; 42-supporting foot; 5-elastic guide inclined plane; 6-first horizontal guide groove; 7-lifting guide groove; 8-sliding support plate; 421-mounting part; 4211-horizontal plate; 4212-vertical plate; 422-deformation part; 423-guide part; 424-abutment part; 9-reinforcement rib; 10-fixed baffle; 11-mounting arm; 12-reset connecting rod; 121-long rod body; 122-short rod body; 13-tee pipe; 14-water inlet; 15-water supply port; 16-drainage port; 17-water inlet Flow channel; 18-drainage flow channel; 3001-first plug-in section; 3002-second plug-in section; 19-second horizontal guide groove; 20-transmission connecting rod; 1001-installation side plate; 21-abutment surface; 22-arc surface; 23-fixed bottom plate; 24-through hole; 25-groove; 26-first annular groove; 27-second annular groove; 28-first guide slope; 29-second guide slope; 30-ordinary section; 31-reduced diameter section; 32-sleeve tube; 33-installation tube; 34-third annular groove; 35-sliding block; 36-sliding shaft; 37-driving motor; 38-screw shaft; 39-screw slider; 40-micro switch; 51-water supply port; 52-scraper plate. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0042] Combine the following Figures 1 to 15 Embodiments of the present invention are described.

[0043] like Figure 1-2As shown, this embodiment relates to an automatic coffee brewing mechanism, including a mounting bracket 100, a brewing cup 200, a water supply pipe 300, a driving device and a slag discharge assembly.

[0044] Specifically, the mounting bracket 100 is provided with a powder receiving station and an extraction station, the brewing cup 200 is movably arranged at the powder receiving station, an extraction chamber 2001 is arranged inside the brewing cup 200, and a powder inlet is arranged on the extraction chamber 2001; the water supply pipe 300 is used to supply water to the extraction chamber 2001; the driving device is transmission-connected to the brewing cup 200, and is used to drive the brewing cup 200 to reciprocate between the powder receiving station and the extraction station; the slag discharge assembly is arranged on the brewing cup 200; when the brewing cup 200 is located at the extraction station, the water supply pipe 300 is connected to the brewing cup 200; the slag discharge assembly is used to discharge the slag in the brewing cup 200.

[0045] On the basis of the above structure, when in use, the brewing cup 200 is located at the initial position powder receiving station, and the user puts powder or an external powder supply device puts powder into the brewing cup 200, and the powder is put into the extraction chamber 2001. After the powder is put, when the driving device drives the brewing cup 200 to move to the extraction station, the water supply pipe 300 is connected with the brewing cup 200, and then the water supply pipe 300 supplies water to the extraction chamber 2001, and the hot water is injected into the extraction chamber 2001 to extract the required liquid. After the liquid is extracted, when the driving device drives the brewing cup 200 to retreat from the extraction station and move toward the powder receiving station, the moving brewing cup 200 can be linked with the slag discharge component to perform a slag discharge operation on the slag body in the extraction chamber 2001, thereby emptying the extraction chamber 2001 to prepare for the next powder receiving operation, thereby realizing the reciprocating automatic operation of powder receiving, extraction, slag discharge and reset.

[0046] It can be seen that, in the present invention, after the brewing cup 200 is driven by the driving device to receive powder at the powder receiving station on the mounting bracket 100, it is moved to the extraction station and water is injected into the extraction chamber 2001 through the water supply pipe 300 to implement the extraction operation. When the brewing cup 200 is withdrawn, the slag discharge component is linked to perform the slag discharge operation through the movement of the brewing cup 200 itself, so that when the brewing cup 200 is reset to the powder receiving station, the extraction chamber 2001 can perform the next powder receiving operation. In this way, the linkage design of the slag discharge component is utilized to realize the automatic operation of powder receiving, extraction, slag discharge and reset under the condition of a single driving device.

[0047] It should be noted that the water supply pipe 300 can be arranged on the machine body, or the water supply pipe 300 is arranged on the mounting bracket 100. In this embodiment, the water supply pipe 300 is arranged on the machine body. The driving device can be arranged on the machine body, or the driving device is arranged on the mounting bracket 100. In this embodiment, the driving device is arranged on the machine body.

[0048] The slag discharge assembly includes a lifting bottom plate 3 and a lifting bracket 4. The lifting bottom plate 3 is movably arranged at the bottom of the extraction chamber 2001. The lifting bottom plate 3 can be moved up to the top of the brewing cup 200, and the lifting bottom plate 3 can move up and down relative to the brewing cup 200. In addition, the lifting bracket 4 is arranged at the bottom of the lifting bottom plate 3, and at least part of the structure of the lifting bracket 4 is exposed outside the brewing cup 200, so as to ensure that the external parts can establish a linkage connection with the lifting bracket 4 without extending into the brewing cup 200. In this way, when the driving device drives the brewing cup 200 to retreat from the extraction station and reset and move toward the powder receiving station, the brewing cup 200 only needs to drive the lifting bracket 4, at least part of the structure of which is exposed outside the brewing cup 200, through external parts to drive the lifting bottom plate 3 located inside the brewing cup 200 to move. Specifically, the lifting bottom plate 3 moves upward relative to the brewing cup 200 and moves up to the top of the brewing cup 200 to achieve the effect of lifting the slag body. In this way, the brewing cup 200 only needs to be driven by the driving device to move horizontally and brake suddenly, so that the slag body can automatically slide off the lifting bottom plate 3 to achieve the slag discharge effect; further, when the brewing cup 200 moves to the powder receiving station, that is, when the brewing cup 200 arrives at the powder receiving station, the brewing cup 200 is linked with the lifting bracket 4 to drive the lifting bottom plate 3 to move downward, thereby restoring the space size of the extraction chamber 2001, so that the extraction chamber 2001 can perform the powder receiving operation again.

[0049] It should be noted that, in the present embodiment, a scraper plate 52 is provided on the mounting bracket 100, and the brewing cup 200 is driven by the driving device to move to the bottom of the scraper plate 52 along a preset route, and the scraper plate 52 is used to scrape away the slag on the lifting bottom plate 3. In this way, it can be ensured that the slag will fall off, and the problem of the slag being stuck to the lifting bottom plate 3 and unable to fall off can be avoided.

[0050] Among them, combined Figure 3-5 As shown, the mounting bracket 100 is provided with a first horizontal guide groove 6, a lifting guide groove 7 and a sliding support plate 8, the first horizontal guide groove 6 is provided with a powder receiving station, the lifting guide groove 7 is connected to the first horizontal guide groove 6, and the lifting guide groove 7 is provided with an extraction station, that is, the brewing cup 200 is switched between the powder receiving station and the extraction station by sliding on the guide groove; further, the sliding support plate 8 is located below the lifting guide groove 7, and the bottom of the brewing cup 200 is provided with a device to prevent the lifting bottom plate 3 from sliding from the brewing cup 200. The bottom of the brewing cup 200 is detached from the limiting structure, and the lifting bracket 4 includes a lifting top rod 41 and a supporting foot 42. The lifting top rod 41 passes through the limiting structure and is connected to the bottom of the lifting bottom plate 3. The supporting foot 42 is arranged at the bottom of the lifting top rod 41. At least part of the structure of the supporting foot 42 is exposed outside the brewing cup 200. An elastic guiding inclined surface 5 is arranged on the supporting foot 42. The elastic guiding inclined surface 5 is used to make the supporting foot 42 retract when it is compressed. The sliding supporting plate 8 is used to compress the elastic guiding inclined surface 5 inwardly and to support the supporting foot 42.

[0051] In this way, on the basis of the above structure, when the brewing cup 200 moves from the first horizontal guide groove 6 to the lifting guide groove 7, the lifting bottom plate 3 moves with the brewing cup 200, so that the brewing cup 200 can be linked to the lifting top rod 41 and the supporting foot 42 connected to the lifting bottom plate 3 to move, wherein the lifting top rod 41 can smoothly pass through the sliding support plate 8 and move upward, and the supporting foot 42 abuts against the sliding support plate 8. Specifically, the elastic guide inclined surface 5 abuts against the sliding support plate 8. Due to the elastic characteristics of the elastic guide inclined surface 5, the supporting foot 42 is forced to compress and deform, so that the supporting foot 42 can also be smoothly moved up to the top of the sliding support plate 8; it should be noted that due to the existence of the limiting structure, the elastic guide inclined surface 5 abuts against the sliding support plate 8 without causing the lifting bottom plate 3 to fall off from the brewing cup 200. On the contrary, when the brewing cup 200 moves from the lifting guide groove 7 to the first horizontal guide groove 6, the brewing cup 200 links the lifting push rod 41 and drives the supporting foot 42 to move downward. During this period, since the elastic guiding inclined surface 5 recovers after the force disappears, the supporting foot 42 is supported by the sliding support plate 8. In this way, the supporting foot 42 cannot move down to the bottom of the sliding support plate 8, and then the lifting push rod 41 and the lifting bottom plate 3 cannot move down. As a result, a relative movement is formed between the lifting bottom plate 3 and the brewing cup 200, so that the lifting bottom plate 3 moves upward relative to the brewing cup 200, thereby achieving the effect of lifting the slag body.

[0052] Among them, the supporting foot 42 includes a mounting portion 421, a deformation portion 422 and a guide portion 423. The mounting portion 421 is connected to the bottom of the lifting top rod 41, the deformation portion 422 is connected between the mounting portion 421 and the guide portion 423, and an elastic guiding inclined surface 5 is arranged on the guide portion 423. In this way, the elastic deformation of the supporting foot 42 can be achieved by simply setting the deformation portion 422.

[0053] Among them, the mounting portion 421 includes a horizontal plate 4211 and a vertical plate 4212. The horizontal plate 4211 is connected to the bottom of the lifting top rod 41, and the vertical plate 4212 is connected to the horizontal plate 4211. The vertical plate 4212 is located at the end of the horizontal plate 4211 away from the lifting top rod 41. With this structure, the overall width of the supporting foot 42 can be changed by simply changing the length of the horizontal plate 4211 to achieve on-demand adjustment. Furthermore, a reinforcing rib 9 is provided between the vertical plate 4212 and the lifting top rod 41, so that sufficient strength can be maintained after the width is adjusted.

[0054] The shape of the deformation portion 422 is an arc shape, a U shape or a V shape. Any of the above shapes can be used. In the present embodiment, the shape of the deformation portion 422 is an arc shape.

[0055] Among them, the mounting portion 421, the deformation portion 422 and the guide portion 423 are integrally formed, and the integrally formed setting facilitates the production and manufacturing of the components.

[0056] Among them, the mounting bracket 100 includes a mounting side plate 1001, the sliding support plate 8 is arranged on the inner side surface of the mounting side plate 1001, and the supporting foot 42 also includes an abutment portion 424 connected to the guide portion 423; when the supporting foot 42 moves up to the top of the sliding support plate 8, the bottom of the abutment portion 424 is placed on the upper end surface of the sliding support plate 8, so that the upper end surface of the sliding support plate 8 supports the bottom of the abutment portion 424, so that the supporting foot 42 is supported by the sliding support plate 8.

[0057] Among them, an abutting surface 21 is provided on the abutting portion 424, and the abutting surface 21 is used to abut against the inner side surface of the mounting side plate 1001, and the abutting surface 21 is parallel to the inner side surface of the mounting side plate 1001. In this way, when the supporting foot 42 is supported by the sliding support plate 8, the abutting surface 21 abuts against the inner side surface of the mounting side plate 1001 to increase the contact area and friction between the supporting foot 42 and the mounting bracket 100, so that the supporting foot 42 can be placed on the sliding support plate 8 more stably and can slide smoothly along the guide of the sliding support plate 8.

[0058] Among them, the mounting portion 421, the deformation portion 422, the guide portion 423 and the abutment portion 424 are integrally formed. Similarly, the integrally formed setting facilitates the production and manufacturing of the components.

[0059] Among them, Figure 6-8 As shown, a fixed baffle 10 is also provided on the mounting bracket 100, and the fixed baffle 10 is located at one side of the powder receiving station. A mounting arm 11 is provided on the surface of the brewing cup 200, and a reset link 12 is rotatably connected to the mounting arm 11. The reset link 12 is exposed outside the brewing cup 200, and one end of the reset link 12 is used to abut against the fixed baffle 10, and the other end of the reset link 12 is movably connected to the lifting bracket 4. The above structure adopts a connecting rod type transmission structure design. In this way, when the brewing cup 200 moves to the powder receiving station, one end of the reset link 12 abuts against the fixed baffle 10, so that the reset link 12 rotates to drive the lifting bottom plate 3 to move downward. Therefore, the structure only needs to utilize the rotation of the reset link 12 to realize the downward movement control of the lifting bottom plate 3, and then utilizes the characteristic of the connecting rod type transmission structure with fewer components to meet the downward movement demand of the lifting bottom plate 3, thereby achieving the effect of simplifying the overall structure of the machine.

[0060] Among them, a groove 25 is provided at the lower end of the lifting push rod 41, and the other end of the reset link 12 is movably connected in the groove 25. When the reset link 12 rotates, the reset link 12 slides and rotates relative to the groove 25 in the groove 25. At the same time, by setting the groove 25, the transmission link 20 can be inserted into the groove 25 to complete the installation, and the installation method is simple and convenient.

[0061] Among them, Fig.15 As shown, the reset link 12 includes a long rod body 121 and a short rod body 122 that are connected to each other. The long rod body 121 is transmission-connected to the bottom of the lifting base plate 3. Specifically, the long rod body 121 is used to be inserted into the groove 25, and the long rod body 121 slides and rotates relative to the groove 25 in the groove 25; the short rod body 122 is used to abut against the fixed baffle 10, and the connection between the long rod body 121 and the short rod body 122 is rotationally connected to the mounting arm 11. In this way, by limiting the length relationship between the long rod body 121 and the short rod body 122, it can be known from the principle of the force arm that the force of the reset link 12 controlling the lifting base plate 3 to move downward is smaller than the force of the short rod body 122 rotating, thereby being able to better ensure the reliability of the linkage assembly.

[0062] Among them, the short rod body 122 is tilted relative to the long rod body 121, and an angle θ is set between the short rod body 122 and the long rod body 121, 90°<θ<180°. Through the tilt setting at a suitable angle, the short rod body 122 can abut against the fixed baffle 10 at a better angle to avoid jamming, thereby better ensuring the reliability of the linkage assembly. In one embodiment, θ is 120°, and in another embodiment, θ is 150°.

[0063] Among them, the free end of the short rod body 122 is provided with a smooth surface, and the smooth surface is used to abut against the fixed baffle 10. By setting the smooth surface, the short rod body 122 and the fixed baffle 10 can be prevented from getting stuck when abutting against each other, thereby better ensuring the reliability of the linkage assembly.

[0064] The smooth surface can be either an arc surface 22 or a spherical surface. In the present embodiment, the smooth surface is an arc surface 22 .

[0065] There are two groups of mounting arms 11 , which are symmetrically arranged. The connection between the long rod body 121 and the short rod body 122 is rotatably connected to the two groups of mounting arms 11 , thereby improving the stability of the installation of the reset link 12 .

[0066] Among them, the limiting structure is a fixed bottom plate 23 arranged at the bottom of the brewing cup 200, and a through hole 24 is arranged on the fixed bottom plate 23. The upper end of the lifting push rod 41 passes through the through hole 24 and is connected to the bottom of the lifting bottom plate 3. The lower end of the lifting push rod 41 is rotatably connected to the reset connecting rod 12. In this way, the fixed bottom plate 23 can prevent the lifting bottom plate 3 from falling off from the bottom of the brewing cup 200. At the same time, the through hole 24 in the fixed bottom plate 23 provides a lifting guide for the lifting push rod 41, reduces the eccentricity of the lifting push rod 41 during lifting, thereby preventing the lifting bottom plate 3 from getting stuck during lifting.

[0067] Among them, Figure 9-13 As shown, a three-way pipe 13 is provided on the surface of the brewing cup 200 . The three-way pipe 13 is provided with a water inlet 14 , a water supply port 15 and a water discharge port 16 . The water supply port 15 is connected to the bottom of the extraction chamber 2001 . On the basis of the above structure, when in use, the brewing cup 200 is moved to the extraction station, the water supply pipe 300 is inserted into the three-way pipe 13 through the water inlet 14, and the water supply pipe 300 starts to supply water. Since the water supply pipe 300 seals the drain port 16, the water in the water supply pipe 300 can only flow to the inside of the extraction chamber 2001 through the water supply port 15 to be used for extraction by the brewing cup 200; conversely, when the brewing cup 200 retreats from the extraction station, the water supply pipe 300 is drawn out of the three-way pipe 13, the water supply pipe 300 opens the drain port 16, and the water in the extraction chamber 2001 is discharged from the drain port 16, so that the water in the residue body in the extraction chamber 2001 can be automatically discharged from the drain port 16. Since the water supply port 15 is connected to the bottom of the extraction chamber 2001, the water in the extraction chamber 2001 can be drained to the greatest extent. It can be seen that the above structure is provided with a three-way pipe 13 on the surface of the brewing cup 200. During extraction, the water supply pipe 300 is used to seal the drain port 16 of the three-way pipe 13, so that the water supply pipe 300 can normally supply water to the extraction chamber 2001. After the extraction, when the water supply pipe 300 is pulled out of the three-way pipe 13, the water supply pipe 300 will open the drain port 16, so that the water in the residue body in the extraction chamber 2001 can be automatically discharged from the drain port 16. In this way, the three-way characteristic of the three-way pipe 13 is utilized to achieve the effect of automatic residue-water separation of the brewing cup 200 while satisfying normal water supply extraction.

[0068] The inside of the three-way pipe 13 is provided with a water inlet channel 17 and a drainage channel 18, the water inlet channel 17 is provided with a water inlet 14, the drainage channel 18 is provided with a drainage port 16, and the water supply pipe 300 has a first plug-in section 3001 and a second plug-in section 3002, the first plug-in section 3001 is used to be inserted into the drainage channel 18, and the second plug-in section 3002 is used to be inserted into the water inlet channel 17. When the water supply pipe 300 is inserted into the three-way pipe 13 through the water inlet 14, the outer surface of the first plug-in section 3001 is sealed with the inner wall of the drainage channel 18, and the outer surface of the second plug-in section 3002 is sealed with the inner wall of the water inlet channel 17, so that the water in the water supply pipe 300 can be normally supplied to the extraction chamber 2001 through the water supply port 15, and water leakage is prevented from occurring at the water inlet 14 and the drainage port 16, so that the flow direction of the water body is correct and there is no water leakage.

[0069] Among them, a first annular groove 26 is provided on the outer circumference of the first plug-in section 3001, and a first sealing ring is sleeved on the first annular groove 26. The first sealing ring is sealed with the inner wall of the drainage channel 18, that is, the structure is tightly matched with the inner wall of the drainage channel 18 through the first sealing ring, thereby ensuring the sealing performance. Specifically, the installation structure of the first sealing ring is to install the first sealing ring by setting the first annular groove 26 on the first plug-in section 3001. The structure is simple to assemble and reliable to use.

[0070] Among them, a second annular groove 27 is provided on the outer circumference of the second plug-in section 3002, and a second sealing ring is sleeved on the second annular groove 27. The second sealing ring is sealed with the inner wall of the water inlet channel 17. This structure is tightly matched with the inner wall of the water inlet channel 17 by the second sealing ring, thereby ensuring the sealing performance. Specifically, the installation structure of the second sealing ring is provided with a second annular groove 27 on the second plug-in section 3002 to install the second sealing ring. The structure is simple to assemble and reliable to use.

[0071] It should be noted that the first sealing ring and the second sealing ring can be purchased on the market.

[0072] In order to facilitate the insertion of the water supply pipe 300 into the tee pipe 13, a guide structure is provided between the outer circumference of the free end of the water supply pipe 300 and the tee pipe 13, and the guide structure is used to guide the water supply pipe 300 to be inserted into the tee pipe 13. Specifically, the guide structure includes a first guide slope 28 and a second guide slope 29, and the first guide slope 28 and the second guide slope 29 are guided and matched. The first guide slope 28 is arranged on the outer circumference of the free end of the water supply pipe 300, and the second guide slope 29 is arranged on the tee pipe 13. The second guide slope 29 is arranged around the water inlet 14. In this way, when there is a slight deviation in the horizontal position of the water supply pipe 300, the position can be automatically corrected under the guidance of the first guide slope 28 and the second guide slope 29, thereby guiding the water supply pipe 300 to be smoothly inserted into the tee pipe 13.

[0073] Among them, a water supply channel is arranged inside the water supply pipe 300, and the water supply channel includes a normal section 30 and a reduced diameter section 31. The normal section 30 and the reduced diameter section 31 are arranged up and down, and the normal section 30 is connected with the reduced diameter section 31. The pipe diameter of the reduced diameter section 31 is smaller than that of the normal section 30. A water supply port 51 is arranged on the reduced diameter section 31. In this way, when water is supplied, when the water in the normal section 30 reaches the reduced diameter section 31, the water pressure will increase due to the smaller pipe diameter, thereby increasing the water pressure transported to the extraction chamber 2001, which is beneficial to improving the quality of extraction.

[0074] Among them, the outer surface of the brewing cup 200 is provided with a sleeve tube 32, which is connected to the extraction chamber 2001, and the three-way pipe 13 has a mounting tube 33, which is mounted on the sleeve tube 32. In this way, the use of this structure facilitates the assembly of the product. The three-way pipe 13 can adopt standard parts on the market, so that the size of the sleeve tube 32 only needs to be set to match the three-way pipe 13 to achieve the assembly of the product.

[0075] Among them, the mounting tube 33 is mounted on the inner wall of the sleeve tube 32, and the outer surface of the mounting tube 33 is sealed with the inner wall of the sleeve tube 32. Furthermore, a third annular groove 34 is provided on the outer circumference of the mounting tube 33, and a third sealing ring is sleeved on the third annular groove 34. The third sealing ring is sealed with the inner wall of the sleeve tube 32. This structure is tightly matched with the inner wall of the sleeve tube 32 by the third sealing ring, thereby ensuring the sealing performance. Specifically, the mounting structure of the third sealing ring is provided with a third annular groove 34 on the third plug-in section to install the third sealing ring. With this structure, the assembly is simple and the use is reliable.

[0076] Among them, Figure 1-2 , Fig.14As shown, a connecting rod transmission structure is provided between the driving device and the brewing cup 200, and the driving device drives the brewing cup 200 to reciprocate in the first horizontal guide groove 6 and the lifting guide groove 7 through the connecting rod transmission structure. On the basis of the above structure, when in use, under the drive of the driving device, the brewing cup 200 is moved from the first horizontal guide groove 6 to the lifting guide groove 7 through the transmission effect of the connecting rod transmission structure, that is, it is switched from the first station to the second station; or, through the transmission effect of the connecting rod transmission structure, the brewing cup 200 is moved from the lifting guide groove 7 to the first horizontal guide groove 6, that is, it is switched from the second station to the first station to achieve reset, thereby achieving station switching of the brewing cup 200 on the machine body, and then utilizing the characteristics of the connecting rod transmission structure with few components to meet the complex motion trajectory of the horizontal movement and lifting movement of the brewing cup 200, thereby simplifying the overall structure of the displacement guide of the brewing cup 200.

[0077] Among them, a right angle or an obtuse angle is formed between the lifting guide groove 7 and the first horizontal guide groove 6. In this embodiment, a right angle is formed between the lifting guide groove 7 and the first horizontal guide groove 6. The right-angle design of the guide groove effectively minimizes the horizontal space occupied by the machine. A second horizontal guide groove 19 is also provided on the mounting bracket 100. The second horizontal guide groove 19 has the same guiding direction as the first horizontal guide groove 6. The second horizontal guide groove 19 is located below the first horizontal guide groove 6. The length of the second horizontal guide groove 19 is greater than that of the first horizontal guide groove 6.

[0078] Furthermore, the connecting rod transmission structure includes a first sliding member, a second sliding member and a transmission connecting rod 20. The first sliding member is arranged on the surface of the brewing cup 200, the first sliding member is slidably connected in the first horizontal guide groove 6, the first sliding member is arranged close to the lifting guide groove 7, the second sliding member is slidably connected in the second horizontal guide groove 19, the second sliding member is arranged away from the lifting guide groove 7, the driving device is transmission-connected with the second sliding member, one end of the transmission connecting rod 20 is rotationally connected with the first sliding member, and the other end of the transmission connecting rod 20 is rotationally connected with the second sliding member. In this way, by assembling the second sliding member on the second horizontal guide groove 19, the second horizontal guide groove 19 is used to provide a sliding guide for the second sliding member, and the stability of the second sliding member when moving is improved, thereby improving the stability of the entire displacement guide structure, reducing failures, and ensuring the long-term stable operation of the displacement guide structure.

[0079] It should be noted that the first sliding member is arranged close to the lifting guide groove 7, and the second sliding member is arranged away from the lifting guide groove 7, which can make the front end of the transmission connecting rod 20 lower and the rear end higher, so that the transmission connecting rod 20 is in an inclined state. Therefore, by limiting the positional relationship between the second sliding member and the first sliding member, the feasibility of the connecting rod transmission structure is ensured, so that when the first sliding member slides from the first horizontal guide groove 6 to the connection between the first horizontal guide groove 6 and the lifting guide groove 7, it can continue to slide upward smoothly and slide into the lifting guide groove 7.

[0080] Among them, there are two mounting side panels 1001, which are arranged opposite to each other, and the first horizontal guide groove 6, the lifting guide groove 7 and the second horizontal guide groove 19 are symmetrically arranged on the two mounting side panels 1001; the first sliding member is a sliding block 35, and two sliding blocks 35 are arranged, and the two sliding blocks 35 are distributed on both sides of the brewing cup 200; the second sliding member is a sliding shaft 36, and the sliding shaft 36 is inserted into two groups of second horizontal guide grooves 19, that is, the above-mentioned guide structure is a two-side guide structure. In this way, the stability of the entire displacement guide structure is further improved by setting the two-side guide structure, and the problem of easy failure when using a single-side guide structure is avoided.

[0081] Furthermore, the sliding block 35 is extended along the height direction of the brewing cup 200, so that the sliding block 35 has a certain height, increasing the connection area between the sliding block 35 and the brewing cup 200, so that the brewing cup 200 is relatively less likely to shake when sliding. Specifically, the sliding block 35 is extended along the height direction of the brewing cup 200 so that the shape of the first sliding member is rectangular.

[0082] The driving device includes a driving motor 37, a screw shaft 38 and a screw slider 39. The driving end of the driving motor 37 is connected to the screw shaft 38. The axial direction of the screw shaft 38 is the same as the guide direction of the second horizontal guide groove 19. The screw slider 39 is arranged on the screw shaft 38. The screw slider 39 is fixedly connected to the second sliding member. That is, the driving device is a screw transmission structure. When in use, the driving motor 37 drives the screw shaft 38 to rotate to drive the screw slider 39 to move along the axial direction of the screw shaft 38, and then drives the second sliding member to move through the screw slider 39. Further, the driving device also includes a position switch for contacting and cooperating with the screw slider 39. Two position switches are provided. The two position switches are distributed at both ends of the second horizontal guide groove 19 along the guide direction of the second horizontal guide groove 19. That is, the stroke between the two position switches is made the same as the stroke of the second horizontal guide groove 19, and the stroke path corresponds to the second horizontal guide groove 19. In this way, when the screw slider 39 moves to the two ends of the second horizontal guide groove 19, the position of the screw slider 39 can be identified by the position switch, and then the position of the brewing cup 200 can be identified. Specifically, the position switch is a micro switch 40, which has a simple and reliable structure and high stability. Furthermore, a protrusion is provided on the screw slider 39, and the protrusion is contacted with the position switch.

[0083] A coffee machine includes a machine body, and the machine body is provided with the above-mentioned automatic coffee brewing mechanism. Thus, the coffee machine with the automatic coffee brewing mechanism drives the brewing cup 200 to the powder receiving station on the mounting bracket 100 through a driving device to receive powder, and then moves to the extraction station to inject water into the extraction chamber 2001 through the water supply pipe 300 to implement the extraction operation. When the brewing cup 200 is withdrawn, the brewing cup 200 moves itself to link the slag discharge component to perform the slag discharge operation, so that when the brewing cup 200 is reset to the powder receiving station, the extraction chamber 2001 can perform the next powder receiving operation, thereby utilizing the linkage design of the slag discharge component to implement the automatic operation of powder receiving, extraction, slag discharge and reset under the condition of a single driving device.

[0084] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. An automatic coffee brewing mechanism, characterized in that: It comprises a mounting bracket (100), a brewing cup (200), a water supply pipe (300), a driving device and a slag discharge assembly; The mounting bracket (100) is provided with a powder receiving station and an extraction station; an extraction chamber (2001) is provided inside the brewing cup (200), and a powder inlet is provided on the extraction chamber (2001); the water supply pipe (300) is used to supply water to the extraction chamber (2001); the driving device is in driving connection with the brewing cup (200) and is used to drive the brewing cup (200) to reciprocate between the powder receiving station and the extraction station; The slag discharge component is arranged on the brewing cup (200), and is used to discharge slag in the brewing cup (200). The slag discharge component comprises a lifting bottom plate (3) and a lifting bracket (4). The lifting bottom plate (3) is arranged at the bottom of the extraction chamber (2001), and the lifting bottom plate (3) can be moved upward to the top of the brewing cup (200). The lifting bracket (4) is arranged at the bottom of the lifting bottom plate (3) and at least part of its structure is exposed outside the brewing cup (200). The brewing cup (200) is used to link with the lifting bracket (4) to drive the lifting bottom plate (3) to move upward to discharge slag, or the brewing cup (200) is used to link with the lifting bracket (4) to drive the lifting bottom plate (3) to move downward. The mounting bracket (100) is provided with a first horizontal guide groove (6), a lifting guide groove (7) and a sliding support plate (8); the first horizontal guide groove (6) is provided with the powder receiving station; the lifting guide groove (7) is connected to the first horizontal guide groove (6); the sliding support plate (8) is located below the lifting guide groove (7); a limiting structure for preventing the lifting bottom plate (3) from falling off the bottom of the brewing cup (200) is provided at the bottom of the brewing cup (200); the lifting bracket (4) comprises a lifting top rod (41) and a support rod (42); A support foot (42), the lifting top rod (41) passes through the limiting structure and is connected to the bottom of the lifting bottom plate (3), the support foot (42) is arranged at the bottom of the lifting top rod (41), at least a part of the structure of the support foot (42) is exposed outside the brewing cup (200), the support foot (42) is provided with an elastic guide inclined surface (5), the elastic guide inclined surface (5) is used to make the support foot (42) retract when it is pressed, and the sliding support plate (8) is used to compress the elastic guide inclined surface (5) inwardly and support the support foot (42); A connecting rod transmission structure is provided between the driving device and the brewing cup (200), and the driving device drives the brewing cup (200) to reciprocate in the first horizontal guide groove (6) and the lifting guide groove (7) through the connecting rod transmission structure; A right angle or an obtuse angle is formed between the lifting guide groove (7) and the first horizontal guide groove (6); the mounting bracket (100) is further provided with a second horizontal guide groove (19) having the same guiding direction as the first horizontal guide groove (6); the second horizontal guide groove (19) is located below the first horizontal guide groove (6); and the length of the second horizontal guide groove (19) is greater than that of the first horizontal guide groove (6); The connecting rod transmission structure comprises a first sliding member, a second sliding member and a transmission connecting rod (20); the first sliding member is arranged on the surface of the brewing cup (200); the first sliding member is slidably connected in the first horizontal guide groove (6); the first sliding member is arranged close to the lifting guide groove (7); the second sliding member is slidably connected in the second horizontal guide groove (19); the second sliding member is arranged away from the lifting guide groove (7); the driving device is transmission-connected to the second sliding member; one end of the transmission connecting rod (20) is rotationally connected to the first sliding member; and the other end of the transmission connecting rod (20) is rotationally connected to the second sliding member. When the brewing cup (200) is located on the extraction station, the water supply pipe (300) is connected to the brewing cup (200).

2. The automatic coffee brewing mechanism according to claim 1, characterized in that: The supporting foot (42) comprises a mounting portion (421), a deformable portion (422) and a guide portion (423); the mounting portion (421) is connected to the bottom of the lifting top rod (41); the deformable portion (422) is connected between the mounting portion (421) and the guide portion (423); and the guide portion (423) is provided with the elastic guide inclined surface (5).

3. The automatic coffee brewing mechanism according to claim 1, characterized in that: A fixed baffle (10) is also provided on the mounting bracket (100), and the fixed baffle (10) is located at one side of the powder receiving station. A mounting arm (11) is provided on the surface of the brewing cup (200), and a reset connecting rod (12) is rotatably connected to the mounting arm (11), and the reset connecting rod (12) is exposed outside the brewing cup (200). One end of the reset connecting rod (12) is movably connected to the lifting bracket (4), and the other end of the reset connecting rod (12) is used to abut against the fixed baffle (10), so that the reset connecting rod (12) rotates, thereby driving the lifting bottom plate (3) to move downward.

4. The automatic coffee brewing mechanism according to claim 1, characterized in that: A three-way pipe (13) is provided on the surface of the brewing cup (200), and the three-way pipe (13) is provided with a water inlet (14), a water supply port (15) and a water outlet (16); the water supply port (15) is connected to the bottom of the extraction chamber (2001); the water supply pipe (300) is plugged in and out of the water inlet (14); the water supply pipe (300) is used to close the water outlet (16) and supply water to the water supply port (15); or the water supply pipe (300) opens the water outlet (16) to allow water in the extraction chamber (2001) to be discharged from the water outlet (16).

5. The automatic coffee brewing mechanism according to claim 4, characterized in that: The three-way pipe (13) is provided with a water inlet channel (17) and a water discharge channel (18) inside, the water inlet channel (17) is provided with the water inlet port (14), and the water discharge channel (18) is provided with the water discharge port (16), the water supply pipe (300) has a first plug-in section (3001) and a second plug-in section (3002), the first plug-in section (3001) is used to be inserted into the water discharge channel (18) and to be sealed with the inner wall of the water discharge channel (18), and the second plug-in section (3002) is used to be inserted into the water inlet channel (17) and to be sealed with the inner wall of the water inlet channel (17).

6. A coffee machine, characterized in that: The invention comprises a machine body, on which is arranged the automatic coffee brewing mechanism as claimed in any one of claims 1 to 5.

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