Capsule extraction system and coffee machine

Abstract

The present invention discloses a capsule extraction system and a coffee machine. The capsule extraction system includes a main body, a capsule holder, a capsule pressing module, and a power module. The main body has a mounting slot. The capsule holder is arranged in the mounting slot and has a capsule placement slot. The bottom of the capsule placement slot is provided with a coffee flow channel that extends to the bottom of the capsule holder. The coffee inlet and coffee outlet of the coffee flow channel are horizontally staggered. The capsule pressing module is arranged in the mounting slot and located above the capsule holder. The capsule pressing module has a water injection pipe and a water injection needle. The water inlet of the water injection pipe is connected to an external water source, and the water outlet of the water injection pipe is connected to the water injection needle. The power module is arranged in the mounting slot and can drive the capsule pressing module to rise and fall. When the capsule pressing module descends, the capsule pressing module presses the capsule on the capsule holder so that the water injection needle punctures the capsule and injects water into the capsule. The present invention provides a fully automatic capsule extraction system to improve work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a capsule extraction system and a coffee machine. Background Art

[0002] Because the capsules are packed with nitrogen for freshness preservation, they still taste like freshly ground coffee and are full of fragrance after being stored for a long time. It also saves the step of grinding beans, and thus has gradually become popular among consumers.

[0003] In the prior art, coffee machines using capsules have a capsule extraction system for extracting capsules. The capsule extraction system includes a main body, a capsule holder, and a capsule pressing module. The capsule holder is mounted on the main body, and the capsule pressing module is reversibly mounted on the main body. The capsule pressing module is equipped with a water injection needle. During the extraction process, the capsule is first placed on the capsule holder. The user then flips the capsule pressing module so that the water injection needle on the capsule pressing module punctures the capsule, allowing water to be injected into the capsule for extraction. However, the entire process requires manual operation, resulting in low work efficiency. Summary of the Invention

[0004] The main purpose of the present invention is to propose a capsule extraction system, aiming to provide a fully automatic capsule extraction system to improve work efficiency.

[0005] To achieve the above objectives, the present invention proposes a capsule extraction system comprising:

[0006] a main body, the main body having a mounting groove;

[0007] a capsule holder, the capsule holder being arranged in the mounting groove and having a capsule placement groove, a coffee flow channel being formed at the bottom of the capsule placement groove and extending to the bottom of the capsule holder, and a coffee inlet and a coffee outlet of the coffee flow channel being staggered in the horizontal direction;

[0008] a capsule pressing module, the capsule pressing module being disposed in the mounting groove and located above the capsule holder, the capsule pressing module comprising a water injection pipe and a water injection needle, the water inlet of the water injection pipe being connected to an external water source, and the water outlet of the water injection pipe being connected to the water injection needle;

[0009] A power module is arranged in the mounting groove and is transmission-connected to the capsule pressing module to drive the capsule pressing module to rise and fall; when the power module drives the capsule pressing module to descend, the capsule pressing module presses the capsule on the capsule holder so that the water injection needle punctures the capsule and injects water into the capsule.

[0010] In one embodiment of the present invention, the power module includes a motor, a transmission assembly, and a shaft sleeve, wherein the motor is connected to the transmission assembly to drive the transmission assembly to rotate, and the shaft sleeve is engaged with the transmission assembly, and the transmission assembly drives the shaft sleeve to rotate;

[0011] The capsule pressing module includes a pressing member and a screw rod. The screw rod extends in the vertical direction and passes through the shaft sleeve. The shaft sleeve rotates to drive the screw rod to rise and fall. The pressing member has the water injection pipe and the water injection needle, and is connected to the screw rod to rise and fall with the screw rod.

[0012] In one embodiment of the present invention, the clamping member further has a lower pressing block and an upper pressing block, the top of the lower pressing block is provided with a fixing groove, the bottom end of the screw rod is inserted into the fixing groove, the upper pressing block is superimposed on the lower pressing block, and is sleeved on the screw rod to compress the screw rod; the water injection pipe is superimposed on the upper pressing block, and the water injection needle is passed through the lower pressing block to connect to the water outlet of the water injection pipe.

[0013] In one embodiment of the present invention, a limiting portion is protruded from the side wall of the screw rod, and the limiting portion is arranged near the bottom end of the screw rod. The upper pressing block has a pressing portion protruded toward the lower pressing block, and the pressing portion is inserted into the fixing groove and abuts against the limiting portion.

[0014] And / or, a limiting groove is provided at the bottom of the fixing groove, a lower convex portion is provided at the bottom end of the screw rod, the lower convex portion is inserted into the limiting groove, and the cross-sectional area of the lower convex portion is non-circular;

[0015] And / or, a sealing layer is provided on a side of the lower pressing block facing away from the upper pressing block.

[0016] In one embodiment of the present invention, a first guide post is provided on the top of the pressing member, and the first guide post is extended in the vertical direction. The power module further includes a mounting bracket, and the motor, the transmission assembly, and the shaft sleeve are all provided on the mounting bracket. The mounting bracket is provided with a first guide hole, and the first guide post is passed through the first guide hole.

[0017] The outer wall of the first guide column is provided with a rib, which is arranged near the bottom of the first guide column. The bottom of the mounting bracket is provided with a limiting boss, which is arranged around the first guide hole; when the capsule pressing module rises, the rib abuts against the limiting boss.

[0018] In one embodiment of the present invention, the capsule pressing module has a protrusion on the top, and the power module has a push switch on the bottom; when the capsule pressing module rises, the protrusion abuts against the push switch to trigger the push switch; when the capsule pressing module descends, the protrusion releases the push switch;

[0019] And / or, a second guide column is provided at the bottom of the capsule pressing module, and a second guide hole is opened at the top of the capsule holder, and when the capsule pressing module descends, the second guide column is inserted into the second guide hole.

[0020] In one embodiment of the present invention, the water injection pipe includes a connected water inlet section and a water outlet section, the water inlet section and the water outlet section are arranged at an angle, the water inlet of the water inlet section is used to connect with an external water source, the water outlet of the water outlet section is connected with the water injection needle, and a one-way valve is provided at the end of the water inlet section away from the water outlet section.

[0021] In one embodiment of the present invention, the capsule extraction system further includes a water supply module, and the water supply module is used to transport external water source to the water injection pipe.

[0022] In one embodiment of the present invention, the capsule holder includes a lower cover, an upper cover, and a sealing ring. The upper cover is disposed on the lower cover and has the capsule placement groove. The sealing ring is disposed between the upper cover and the lower cover and encloses the lower cover to form the coffee flow channel. The sealing ring is disposed around the coffee inlet of the coffee flow channel.

[0023] And / or, the capsule holder is retractably arranged in the mounting slot, and a detection switch is provided on a slot wall of the mounting slot; when the capsule holder is retracted into the mounting slot, the side wall of the capsule holder abuts against the detection switch to trigger the detection switch, and when the capsule holder is extended out of the mounting slot, the capsule holder releases the detection switch;

[0024] And / or, the capsule holder is magnetically connected to the main body.

[0025] The present invention further provides a coffee machine, comprising a capsule extraction system, the capsule extraction system comprising:

[0026] a main body, the main body having a mounting groove;

[0027] a capsule holder, the capsule holder being arranged in the mounting groove and having a capsule placement groove, a coffee flow channel being formed at the bottom of the capsule placement groove and extending to the bottom of the capsule holder, and a coffee inlet and a coffee outlet of the coffee flow channel being staggered in the horizontal direction;

[0028] a capsule pressing module, the capsule pressing module being disposed in the mounting groove and located above the capsule holder, the capsule pressing module comprising a water injection pipe and a water injection needle, the water inlet of the water injection pipe being connected to an external water source, and the water outlet of the water injection pipe being connected to the water injection needle;

[0029] A power module is arranged in the mounting groove and is transmission-connected to the capsule pressing module to drive the capsule pressing module to rise and fall; when the power module drives the capsule pressing module to descend, the capsule pressing module presses the capsule on the capsule holder so that the water injection needle punctures the capsule and injects water into the capsule.

[0030] The capsule extraction system proposed in the present invention is provided with a capsule pressing module and a power module in the installation groove of the main body. During the extraction process, the capsule is first placed in the capsule placement groove of the capsule holder. At this time, the power module works to drive the capsule pressing module to automatically descend, so that the capsule pressing module presses the capsule on the capsule holder, so that the water injection needle on the capsule pressing module pierces the capsule and injects water into the capsule, and the capsule can be water-injected for extraction; after the extraction is completed, the power module works again to drive the capsule pressing module to rise, and a new capsule can be replaced for the next extraction; in this way, the method of manually flipping the capsule pressing module is replaced, and a fully automatic extraction process is realized, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0032] Figure 1 This is a schematic structural diagram of an embodiment of a capsule extraction system of the present invention;

[0033] Figure 2 An exploded view of an embodiment of a capsule extraction system of the present invention;

[0034] Figure 3 A cross-sectional view of a capsule pressing module in an ascending state in an embodiment of a capsule extraction system of the present invention;

[0035] Figure 4 A cross-sectional view of a capsule pressing module in a descending state in an embodiment of a capsule extraction system of the present invention;

[0036] Figure 5 A partial structural exploded view of an embodiment of a capsule extraction system of the present invention;

[0037] Figure 6 A partial structural cross-sectional view of an embodiment of a capsule extraction system of the present invention;

[0038] Figure 7 A partial structural diagram of an embodiment of a capsule extraction system of the present invention;

[0039] Figure 8 This is a schematic structural diagram of the main body of an embodiment of the capsule extraction system of the present invention;

[0040] Figure 9 A cross-sectional view of a capsule holder in an embodiment of a capsule extraction system of the present invention;

[0041] Figure 10 This is an exploded view of a capsule holder in one embodiment of the capsule extraction system of the present invention;

[0042] Figure 11 This is a structural schematic diagram of a capsule pressing module in an embodiment of a capsule extraction system of the present invention;

[0043] Figure 12 A cross-sectional view of a capsule pressing module in an embodiment of a capsule extraction system of the present invention;

[0044] Figure 13 This is a schematic structural diagram of a power module from one perspective in an embodiment of a capsule extraction system of the present invention;

[0045] Figure 14 This is a structural schematic diagram from another perspective of the power module in one embodiment of the capsule extraction system of the present invention.

[0046] Description of Figure Numbers:

[0047]

[0048]

[0049] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0051] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0052] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0053] The present invention proposes a capsule extraction system 100 , aiming to provide a fully automatic capsule extraction system 100 to improve work efficiency.

[0054] The specific structure of the capsule extraction system 100 of the present invention is described below:

[0055] See also Figures 1 to 4 In one embodiment of the capsule extraction system 100 of the present invention, the capsule extraction system 100 includes a main body 10, a capsule holder 20, a capsule pressing module 30, and a power module 40:

[0056] The main body 10 has a mounting groove 11; the capsule holder 20 is arranged in the mounting groove 11 and has a capsule placement groove 221. The bottom of the capsule placement groove 221 is provided with a coffee flow channel 211 that passes through to the bottom of the capsule holder 20, and the coffee inlet 211a and the coffee outlet 211b of the coffee flow channel 211 are staggered in the horizontal direction; the capsule pressing module 30 is arranged in the mounting groove 11 and is located above the capsule holder 20. The capsule pressing module 30 has a water injection pipe 311 and a water injection needle 312. The water inlet of the water injection pipe 311 is used to communicate with an external water source, and the water outlet of the water injection pipe 311 is connected to the water injection needle 312; the power module 40 is arranged in the mounting groove 11 and is transmission-connected to the capsule pressing module 30 to drive the capsule pressing module 30 to rise and fall; when the power module 40 drives the capsule pressing module 30 to descend, the capsule pressing module 30 presses the capsule on the capsule holder 20 so that the water injection needle 312 punctures the capsule and injects water into the capsule.

[0057] It can be understood that the capsule extraction system 100 proposed in the present invention is provided with a capsule pressing module 30 and a power module 40 in the mounting groove 11 of the main body 10. During the extraction process, the capsule is first placed in the capsule placement groove 221 of the capsule holder 20. At this time, the power module 40 works to drive the capsule pressing module 30 to automatically descend, so that the capsule pressing module 30 presses the capsule on the capsule holder 20, so that the water injection needle 312 on the capsule pressing module 30 punctures the capsule and injects water into the capsule, and the capsule can be water-injected for extraction; after the extraction is completed, the power module 40 works again to drive the capsule pressing module 30 to rise, and a new capsule can be replaced for the next extraction; in this way, the method of manually flipping the capsule pressing module 30 is replaced, and a fully automatic extraction process is realized, thereby improving work efficiency.

[0058] In addition, in order to ensure the extraction effect of the capsule, the water flow provided by the water injection pipe 311 needs to be a high-pressure water flow. In this way, by staggering the coffee inlet 211a and the coffee outlet 211b of the coffee flow channel 211 in the horizontal direction, the extracted coffee can be prevented from flowing out directly vertically downward and generating a large impact force, thereby preventing the coffee flowing out of the coffee outlet 211b from having a large impact with the container that receives the coffee and causing splashing.

[0059] In addition, in order to facilitate the installation of the power module 40 and the capsule pressing module 30 into the installation groove 11 of the main body 10, a mounting guide rail can be provided on the groove wall of the installation groove 11, and a guide groove can be opened on the side wall of the power module 40. In this way, during the assembly process, the capsule pressing module 30 can be first installed on the power module 40, and then the power module 40 can be smoothly installed into the installation groove 11 with the cooperation of the guide groove and the mounting rail.

[0060] Specifically, refer to Figure 8 The mounting groove 11 may include an upper mounting groove 11a and a lower mounting groove 11b that are connected to each other, wherein the upper mounting groove 11a is used to install and fix the power module 40, and the capsule pressing module 30 can be lifted and lowered in the upper mounting groove 11a, and the lower mounting groove 11b is used for sliding, plugging and installing the fixed capsule holder 20.

[0061] It should be noted that the capsule extraction system 100 of the present application can be used to extract capsules such as coffee capsules, tea bag capsules, and medicine bag capsules.

[0062] In actual application, the power module 40 can drive the capsule pressing module 30 to rise and fall through the nut screw 32, or through the gear rack, or through the direct drive of the motor 41.

[0063] Further, refer to Figure 6 、 Figures 11 to 14 In one embodiment of the capsule extraction system 100 of the present invention, the power module 40 includes a motor 41, a transmission assembly 42, and a shaft sleeve 43. The motor 41 is connected to the transmission assembly 42 to drive the transmission assembly 42 to rotate. The shaft sleeve 43 is engaged with the transmission assembly 42, and the transmission assembly 42 drives the shaft sleeve 43 to rotate. The capsule pressing module 30 includes a pressing member 31 and a screw rod 32. The screw rod 32 extends in the vertical direction and passes through the shaft sleeve 43. The shaft sleeve 43 rotates to drive the screw rod 32 to rise and fall. The pressing member 31 has a water injection pipe 311 and a water injection needle 312, and is connected to the screw rod 32 to rise and fall with the screw rod 32.

[0064] With this arrangement, the motor 41 works to drive the transmission assembly 42 to rotate, and then drives the shaft sleeve 43 to rotate through the transmission assembly 42. Under the rotation of the shaft sleeve 43, the screw rod 32 can be stably raised and lowered in the vertical direction, so that the water injection needle 312 on the pressing member 31 can smoothly pierce the capsule on the capsule holder 20 and smoothly inject water into the capsule for extraction.

[0065] Specifically, the transmission assembly 42 may include a first gear 421 and a second gear 422. The first gear 421 is sleeved on the output shaft of the motor 41, the second gear 422 is engaged with the first gear 421, and the sleeve 43 is engaged with the second gear 422. In this way, the first gear 421, the second gear 422 and the sleeve 43 are respectively the first-stage gear, the second-stage gear and the third-stage gear, so that the screw rod 32 can be driven up and down more smoothly under the transmission of the first-stage gear, the second-stage gear and the third-stage gear.

[0066] Further, refer to Figure 5 、 Figure 6 、 Figure 11 and Figure 12 In one embodiment of the capsule extraction system 100 of the present invention, the pressing member 31 further includes a lower pressing block 313 and an upper pressing block 314. A fixing groove 3131 is defined at the top of the lower pressing block 313, and the bottom end of the screw rod 32 is inserted into the fixing groove 3131. The upper pressing block 314 is superimposed on the lower pressing block 313 and sleeved on the screw rod 32 to compress the screw rod 32. The water injection pipe 311 is superimposed on the upper pressing block 314, and the water injection needle 312 is inserted into the lower pressing block 313 to connect to the water outlet of the water injection pipe 311.

[0067] With such arrangement, during the assembly process of the capsule pressing module 30, the bottom end of the screw rod 32 can be first inserted into the fixing groove 3131 of the lower pressing block 313, and then the upper pressing block 314 can be superimposed on the lower pressing block 313, and the upper pressing block 314 can be sleeved on the screw rod 32 and the screw rod 32 can be pressed against the lower pressing block 313, and then the water injection pipe 311 can be superimposed on the upper pressing block 314 to limit the screw rod 32 in the vertical direction, so that the screw rod 32 can be limited and fixed on the lower pressing block 313 under the superposition of the upper pressing block 314 and the water injection pipe 311, so as to avoid the screw rod 32 from being displaced or even falling out of the fixing groove 3131 of the lower pressing block 313 during the lifting process, thereby affecting the stability of the lifting.

[0068] Specifically, the upper pressing block 314 can be fixed to the lower pressing block 313 by means of screws, clips, etc. to ensure the connection stability between the upper pressing block 314 and the lower pressing block 313, and thus ensure the limiting strength of the screw rod 32; similarly, the water injection pipe 311 can also be fixed to the upper pressing block 314 by means of screws, clips, one-piece molding, etc. to ensure the connection stability between the upper pressing block 314 and the water injection pipe 311, and thus ensure the limiting strength of the screw rod 32.

[0069] Furthermore, the water injection needle 312 can be arranged below the water injection pipe 311 by opening a water injection hole on the bottom wall of the water injection pipe 311 , which is the water outlet of the water injection pipe 311 , so that the main water pipe is connected to the water injection needle 312 through the water injection hole.

[0070] Further, refer to Figure 6 and Figure 12 In one embodiment of the capsule extraction system 100 of the present invention, a stopper 321 is protruded from the side wall of the screw rod 32. The stopper 321 is arranged near the bottom end of the screw rod 32. The upper pressing block 314 has a pressing portion 3141 protruding toward the lower pressing block 313. The pressing portion 3141 is inserted into the fixing groove 3131 and abuts against the stopper 321.

[0071] With such an arrangement, during the assembly process, by superimposing the upper pressing block 314 on the lower pressing block 313, the clamping portion 3141 on the upper pressing block 314 can be inserted into the fixing groove 3131 of the lower pressing block 313 and abut against the limiting portion 321 of the screw rod 32. The limiting strength of the screw rod 32 in the vertical direction can be increased with the cooperation of the clamping portion 3141 and the limiting portion 321, so that the screw rod 32 can be fully locked in the fixing groove 3131.

[0072] Specifically, the limiting portion 321 can be an integrally formed structure with the screw rod 32, and the limiting portion 321 can be an annular structure, which is arranged around the outer periphery of the screw rod 32; similarly, the clamping portion 3141 can also be an integrally formed structure with the upper pressure block 314, and the clamping portion 3141 can also be an annular structure, which is arranged around the outer periphery of the screw rod 32, thereby increasing the contact area between the clamping portion 3141 and the limiting portion 321 to ensure the limiting strength of the screw rod 32.

[0073] Further, refer to Figure 6 and Figure 12 In one embodiment of the capsule extraction system 100 of the present invention, a limiting groove 3132 is defined at the bottom of the fixing groove 3131, and a lower protrusion 322 is provided at the bottom end of the screw rod 32. The lower protrusion 322 is inserted into the limiting groove 3132, and the cross-sectional area of the lower protrusion 322 is non-circular.

[0074] With such arrangement, during the assembly process, by superimposing the upper pressure block 314 on the lower pressure block 313, the lower protrusion 322 on the upper pressure block 314 can be inserted into the limiting groove 3132 of the lower pressure block 313, and the cross-sectional area of the lower protrusion 322 is a non-circular body. In this way, the screw rod 32 can be limited in the circumferential direction under the cooperation of the lower protrusion 322 and the limiting groove 3132 to prevent the shaft sleeve 43 from driving the screw rod 32 to rotate under the action of the friction force between the shaft sleeve 43 and the screw rod 32 during the rotation process, thereby affecting the lifting and lowering of the screw rod 32.

[0075] Specifically, the lower protrusion 322 and the screw rod 32 are an integrally formed structure, and the cross-sectional shape of the lower protrusion 322 can be one of non-circular shapes such as an ellipse, a triangle, or a rectangle.

[0076] Further, refer to Figure 6 and Figure 12 In one embodiment of the capsule extraction system 100 of the present invention, a sealing adhesive layer 315 is provided on a side of the lower pressing block 313 facing away from the upper pressing block 314 .

[0077] With such a configuration, when the capsule pressing module 30 descends, it can press the capsule on the capsule holder 20 through the sealant layer 315 to prevent coffee from leaking from the gap between the capsule holder 20 and the capsule pressing module 30 during the process of water injection and extraction of the capsule, thereby preventing the problem of difficulty in cleaning.

[0078] Specifically, the sealant layer 315 may be a silicone layer, a rubber layer, etc., which is not limited here; and the sealant layer 315 may be bonded to the lower pressing block 313 .

[0079] In addition, in order to improve the connection strength between the sealant layer 315 and the lower pressing block 313, a plurality of spaced grooves can be provided on the side of the lower pressing block 313 facing the sealant layer 315, and a plurality of spaced protrusions can be provided on the side of the sealant layer 315 facing the lower pressing block 313, so that each protrusion of the sealant layer 315 can be inserted into a groove of the lower pressing block 313, thereby increasing the contact area between the sealant layer 315 and the lower pressing block 313, thereby improving the connection strength between the sealant layer 315 and the lower pressing block 313.

[0080] Further, refer to Figure 5 and Figure 11 In one embodiment of the capsule extraction system 100 of the present invention, a first guide post 316 is provided at the top of the pressing member 31. The first guide post 316 extends in the vertical direction. The power module 40 further includes a mounting bracket 44. The motor 41, the transmission assembly 42, and the shaft sleeve 43 are all mounted on the mounting bracket 44. The mounting bracket 44 defines a first guide hole 441, through which the first guide post 316 is inserted. A rib 3161 is provided on the outer wall of the first guide post 316. The rib 3161 is disposed near the bottom of the first guide post 316. A limiting boss 442 is provided at the bottom of the mounting bracket 44. The limiting boss 442 is disposed around the first guide hole 441. When the capsule pressing module 30 is raised, the rib 3161 abuts against the limiting boss 442.

[0081] With this arrangement, the first guide post 316 and the first guide hole 441 cooperate to guide the screw rod 32 upward and downward during the lifting process of the capsule pressing module 30, thereby fully ensuring the stability of the screw rod 32 during the lifting process. Furthermore, when the capsule pressing module 30 is raised into position, the rib 3161 on the first guide post 316 abuts against the surface of the limiting boss 442, limiting further lifting of the capsule pressing module 30 and thus acting as a limiter.

[0082] In addition, in order to enhance the upward and downward guiding effect of the screw rod 32 during the lifting process, a plurality of first guide columns 316 arranged at intervals can be provided on the clamping member 31, and a plurality of first guide holes 441 arranged at intervals can be opened on the mounting bracket 44, so that each first guide column 316 is inserted into a first guide hole 441.

[0083] Further, refer to Figure 5 In one embodiment of the capsule extraction system 100 of the present invention, a protrusion 317 is provided on the top of the capsule pressing module 30, and a push switch 45 is provided on the bottom of the power module 40; when the capsule pressing module 30 rises, the protrusion 317 abuts against the push switch 45 to trigger the push switch 45; when the capsule pressing module 30 descends, the protrusion 317 releases the push switch 45.

[0084] In this way, when the power module 40 drives the capsule pressing module 30 to rise and reach the specified position, the protrusion 317 on the capsule pressing module 30 will abut against the push switch 45 on the power module 40 to trigger the push switch 45, thereby transmitting a position / reset signal to the main program to control the power module 40 to stop working; when the power module 40 drives the capsule pressing module 30 to descend and reach the specified position, the protrusion 317 on the capsule pressing module 30 will release the push switch 45 on the power module 40, thereby transmitting a leave signal to the main program to control the power module 40 to stop working. For example, the main program can obtain the leave signal when the capsule pressing module 30 descends. Signal, with the departure signal as the initial time, the descent time of the capsule pressing module 30 is calculated. When the descent time reaches the preset time, it indicates that the capsule pressing module 30 has descended to the specified position. At this time, the main program controls the power module 40 to stop working. In this way, the power module 40 can have a reset detection every time it works, which serves as an important supplement to the judgment of the start and end points of the current detection, so as to avoid the judgment of the main program being affected by abnormalities such as power outages (wherein, the current detection control process is currently as follows: when the capsule pressing module 30 rises or falls and reaches the specified position, the current will increase, and the main program controls the power module 40 to stop working).

[0085] Of course, in other embodiments, the protrusion 317 may also be provided on the power module 40 , and the push switch 45 may be provided on the capsule pressing module 30 .

[0086] Further, refer to Figure 9 and Figure 12 In one embodiment of the capsule extraction system 100 of the present invention, a second guide post 318 is provided at the bottom of the capsule pressing module 30, and a second guide hole 222 is opened at the top of the capsule holder 20. When the capsule pressing module 30 descends, the second guide post 318 is inserted into the second guide hole 222.

[0087] In this arrangement, when the capsule pressing module 30 moves downward and presses the capsule on the capsule holder 20, the second guide column 318 on the capsule pressing module 30 will be inserted into the second guide hole 222 on the capsule holder 20. The second guide column 318 and the second guide hole 222 cooperate to guide and lock the capsule holder 20 to ensure stability and safety during the extraction process, thereby preventing the user from removing the capsule holder 20 without knowing it during the extraction process.

[0088] Further, refer to Figure 11In one embodiment of the capsule extraction system 100 of the present invention, the water injection pipe 311 includes a water inlet section 3111 and a water outlet section 3112 that are connected to each other. The water inlet section 3111 and the water outlet section 3112 are arranged at an angle. The water inlet of the water inlet section 3111 is used to communicate with an external water source, and the water outlet of the water outlet section 3112 is connected to the water injection needle 312. A one-way valve 3113 is provided at the end of the water inlet section 3111 away from the water outlet section 3112.

[0089] This arrangement, by making the water injection pipe 311 include an inlet section 3111 and an outlet section 3112 arranged at an angle, fully utilizes the space between the capsule compression module 30 and the power module 40, increasing the compactness of the overall structure and reducing the overall space occupied, thereby facilitating a miniaturized design. Furthermore, by positioning the one-way valve 3113 at the end of the inlet section 3111 away from the outlet section 3112, when the water pressure provided by the external water source is sufficiently high, the one-way valve 3113 opens, allowing water to flow smoothly into the inlet section 3111 and effectively preventing water backflow.

[0090] In this embodiment, the water injection pipe 311 may further include a water pipe connector 3114 , which is disposed at an end of the one-way valve 3113 away from the water inlet section 3111 , so that the water pipe connector 3114 can be used to connect to an external water source.

[0091] Further, refer to Figure 7 In one embodiment of the capsule extraction system 100 of the present invention, the capsule extraction system 100 further includes a water supply module 50, which is configured to deliver external water to the water injection pipe 311. With this configuration, during the extraction process, the external water source can be smoothly delivered to the water injection pipe 311 via the water supply module 50.

[0092] In this embodiment, the water supply module 50 may include a water inlet pipe 51, a heating body 52, a pressure relief valve 53, a water pump 54 and a flow meter 55, wherein the water outlet of the water inlet pipe 51 is connected to the water inlet of the main water pipe, and the water inlet 511 of the water inlet pipe 51 is used to connect to an external water tank, and the flow meter 55, the water pump 54, the pressure relief valve 53 and the heating body 52 can be arranged on the water inlet pipe 51 in sequence along the direction from the water inlet 511 to the water outlet of the water inlet pipe 51; in this way, the water source enters the water inlet pipe 51 through the water inlet 511, and then flows through the flow meter 55, the water pump 54, the pressure relief valve 53 and the heating body 52 in sequence and enters the water injection pipe 311, and finally enters the water injection needle 312 through the main water pipe and then enters the capsule. During this process, when the water outlet of the water inlet pipe 51 is abnormally blocked, the pressure relief valve 53 can return the water flow in the water inlet pipe 51 to the water tank.

[0093] Further, refer to Figure 9 and Figure 10In one embodiment of the capsule extraction system 100 of the present invention, the capsule holder 20 includes a lower cover 21, an upper cover 22 and a sealing ring 23. The upper cover 22 is covered on the lower cover 21 and has a capsule placement groove 221. The sealing ring 23 is arranged between the upper cover 22 and the lower cover 21, and is enclosed with the lower cover 21 to form a coffee flow channel 211. The sealing ring 23 is arranged around the coffee inlet 211a of the coffee flow channel 211.

[0094] With such arrangement, during the assembly process, the sealing ring 23 is first placed in the lower cover 21, and then the upper cover 22 is closed on the lower cover 21, and the sealing ring 23 is pressed between the upper cover 22 and the lower cover 21. At the same time, the sealing ring 23 is arranged around the coffee inlet 211a of the coffee flow channel 211, which can prevent the extracted coffee from seeping into the gap between the upper cover 22 and the lower cover 21 from the coffee inlet 211a of the coffee flow channel 211.

[0095] Specifically, the upper covers 22 and the upper covers 22 , the upper covers 22 and the sealing ring 23 , and the lower cover 21 and the sealing ring 23 can be connected by screw connection, clamping, bonding, etc., which are not limited here.

[0096] Further, refer to Figure 2 and Figure 8 In one embodiment of the capsule extraction system 100 of the present invention, the capsule holder 20 is retractably disposed in the mounting slot 11, and a detection switch 111 is provided on the slot wall of the mounting slot 11; when the capsule holder 20 is retracted into the mounting slot 11, the side wall of the capsule holder 20 abuts against the detection switch 111 to trigger the detection switch 111; when the capsule holder 20 is extended out of the mounting slot 11, the capsule holder 20 releases the detection switch 111.

[0097] In this way, when the capsule holder 20 is retracted into the mounting slot 11 and reaches the specified position, the side wall of the capsule holder 20 will abut against the detection switch 111 to trigger the detection switch 111, thereby transmitting a position / reset signal to the main program to indicate that the capsule holder 20 is installed in place. At this time, the extraction process can be carried out; when the capsule holder 20 is extended out of the mounting slot 11 (that is, when the capsule holder 20 leaves the mounting slot 11), the capsule holder 20 will release the detection switch 111, thereby transmitting a departure signal to the main program to indicate that the capsule holder 20 is in a departure state. At this time, extraction will not be carried out.

[0098] Specifically, a mounting opening communicating with the mounting slot 11 may be opened on the front side of the housing, so that the capsule holder 20 can be retracted into the mounting slot 11 through the mounting opening, or extended out of the mounting slot 11 through the mounting opening.

[0099] Further, refer to Figure 10 In one embodiment of the capsule extraction system 100 of the present invention, the capsule holder 20 is magnetically connected to the main body 10 .

[0100] With such a configuration, when the capsule holder 20 is retracted into the mounting slot 11 and reaches the designated position, the capsule holder 20 is magnetically connected to the main body 10, thereby ensuring the installation stability of the capsule holder 20, thereby preventing the capsule holder 20 from being displaced or even falling out of the mounting slot 11 during the extraction process, thereby affecting the extraction effect.

[0101] Specifically, a magnet 24 can be provided on the capsule holder 20, and an iron sheet attracted to the magnet 24 can be provided on the main body 10. In this way, when the capsule holder 20 is retracted to the mounting groove 11 and reaches the specified position, the capsule holder 20 can be fixed in the mounting groove 11 under the attraction of the magnet 24 and the iron sheet.

[0102] Of course, in other embodiments, the capsule holder 20 may also be connected to the main body 10 by snap-fitting.

[0103] The present invention also provides a coffee machine, which includes the capsule extraction system 100 as described above. The specific structure of the capsule extraction system 100 refers to the above embodiment. Since this coffee machine adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described one by one here.

[0104] In this embodiment, the coffee machine may further include a coffee machine body. A receiving slot may be provided on the front side of the coffee machine body. The capsule extraction system 100 may be telescopically arranged on the coffee machine body to extend out of the receiving slot or retract into the receiving slot.

[0105] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A capsule extraction system, characterized in that: include: a main body, the main body having a mounting groove; a capsule holder, the capsule holder being arranged in the mounting groove and having a capsule placement groove, a coffee flow channel being formed at the bottom of the capsule placement groove and extending to the bottom of the capsule holder, and a coffee inlet and a coffee outlet of the coffee flow channel being staggered in the horizontal direction; a capsule pressing module, the capsule pressing module being disposed in the mounting groove and located above the capsule holder, the capsule pressing module comprising a water injection pipe and a water injection needle, the water inlet of the water injection pipe being connected to an external water source, and the water outlet of the water injection pipe being connected to the water injection needle; a power module, the power module being disposed in the mounting groove and being transmission-connected to the capsule pressing module to drive the capsule pressing module to rise and fall; when the power module drives the capsule pressing module to descend, the capsule pressing module presses the capsule on the capsule holder so that the water injection needle punctures the capsule and injects water into the capsule; a mounting guide rail is provided on the groove wall of the mounting groove, and a guide groove is provided on the side wall of the power module, and the mounting guide rail cooperates with the guide groove; The power module includes a motor, a transmission assembly, and a shaft sleeve. The motor is connected to the transmission assembly to drive the transmission assembly to rotate. The shaft sleeve is engaged with the transmission assembly, and the transmission assembly drives the shaft sleeve to rotate. The capsule pressing module includes a pressing member and a screw rod. The screw rod extends in a vertical direction and passes through the shaft sleeve. The shaft sleeve rotates to drive the screw rod to rise and fall. The pressing member has the water injection pipe and the water injection needle, and is connected to the screw rod to rise and fall with the screw rod. The clamping piece also has a lower pressing block and an upper pressing block. The top of the lower pressing block is provided with a fixing groove, the bottom end of the screw rod is inserted into the fixing groove, the upper pressing block is superimposed on the lower pressing block, and is sleeved on the screw rod to compress the screw rod; the water injection pipe is superimposed on the upper pressing block, and the water injection needle is passed through the lower pressing block to connect to the water outlet of the water injection pipe.

2. The capsule extraction system according to claim 1, wherein: A limiting portion is convexly provided on the side wall of the screw rod, and the limiting portion is arranged near the bottom end of the screw rod. The upper pressing block has a pressing portion convexly provided toward the lower pressing block, and the pressing portion is inserted into the fixing groove and abuts against the limiting portion. And / or, a limiting groove is provided at the bottom of the fixing groove, a lower convex portion is provided at the bottom end of the screw rod, the lower convex portion is inserted into the limiting groove, and the cross-sectional area of the lower convex portion is non-circular; And / or, a sealing layer is provided on a side of the lower pressing block facing away from the upper pressing block.

3. The capsule extraction system according to claim 1, wherein: A first guide post is provided on the top of the pressing member, and the first guide post is extended in the vertical direction. The power module also includes a mounting bracket, and the motor, transmission assembly and shaft sleeve are all arranged on the mounting bracket. The mounting bracket is provided with a first guide hole, and the first guide post is inserted into the first guide hole. The outer wall of the first guide column is provided with a rib, which is arranged near the bottom of the first guide column. The bottom of the mounting bracket is provided with a limiting boss, which is arranged around the first guide hole; when the capsule pressing module rises, the rib abuts against the limiting boss.

4. The capsule extraction system according to any one of claims 1 to 3, characterized in that: The capsule pressing module has a protrusion on the top and a push switch on the bottom of the power module; when the capsule pressing module rises, the protrusion abuts against the push switch to trigger the push switch; when the capsule pressing module descends, the protrusion releases the push switch; And / or, a second guide column is provided at the bottom of the capsule pressing module, and a second guide hole is opened at the top of the capsule holder, and when the capsule pressing module descends, the second guide column is inserted into the second guide hole.

5. The capsule extraction system according to any one of claims 1 to 3, characterized in that: The water injection pipe includes a connected water inlet section and a water outlet section, the water inlet section and the water outlet section are arranged at an angle, the water inlet of the water inlet section is used to communicate with an external water source, the water outlet of the water outlet section is connected to the water injection needle, and a one-way valve is provided at the end of the water inlet section away from the water outlet section.

6. The capsule extraction system according to any one of claims 1 to 3, characterized in that: The capsule extraction system further includes a water supply module, which is used to transport external water to the water injection pipe.

7. The capsule extraction system according to any one of claims 1 to 3, characterized in that: The capsule holder includes a lower cover, an upper cover, and a sealing ring. The upper cover is arranged on the lower cover and has the capsule placement groove. The sealing ring is arranged between the upper cover and the lower cover and encloses the lower cover to form the coffee flow channel. The sealing ring is arranged around the coffee inlet of the coffee flow channel. And / or, the capsule holder is retractably arranged in the mounting slot, and a detection switch is provided on a slot wall of the mounting slot; when the capsule holder is retracted into the mounting slot, the side wall of the capsule holder abuts against the detection switch to trigger the detection switch, and when the capsule holder is extended out of the mounting slot, the capsule holder releases the detection switch; And / or, the capsule holder is magnetically connected to the main body.

8. A coffee machine, characterized in that: The invention comprises the capsule extraction system according to any one of claims 1 to 7.

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