Coffee capsule puncturing and filtering structure of coffee machine

Abstract

The utility model discloses a coffee capsule puncturing and filtering structure of a coffee machine, which comprises a hollow cup and a cup cavity arranged in the hollow cup, a convex ring is arranged on the inner bottom surface of the hollow cup, a containing cavity is formed in the convex ring, a through liquid outlet hole is arranged at the bottom of the containing cavity, and the liquid outlet hole is communicated with the containing cavity. A plurality of protruding ribs are arranged on the inner bottom face of the containing cavity, a flow guide groove is formed between every two adjacent protruding ribs, all the flow guide grooves are communicated with the liquid outlet holes, a filter screen and a pressing piece are sequentially installed in the containing cavity, all the protruding ribs support the filter screen, and the outer wall of the pressing piece is tightly attached to the inner wall of the containing cavity. The filter screen is detachably pressed in the containing cavity through the pressing piece, and the pressing piece comprises a circular plate, a plurality of through grooves formed in the circular plate and a plurality of puncture protrusions arranged at one end of the circular plate; the coffee maker is convenient and fast to mount and dismount, the filter screen can be repeatedly cleaned and utilized and can also be replaced, and the flow guide groove is arranged, so that the flowing-out speed of coffee liquid is high.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee machines, in particular to a coffee capsule puncturing and filtering structure of a coffee machine. Background Art

[0002] After the coffee beans are ground into coffee powder, in order to prevent the coffee powder from becoming sour, oxidized, tasteless or deteriorating after contact with air, the coffee powder can be sealed in a capsule, box or other container. The container loaded with coffee powder is called a coffee capsule.

[0003] Coffee capsules generally need to be used with corresponding coffee machines. When using, the general process is as follows: first install the coffee capsule in the capsule compartment, then break the coffee capsule, and then inject hot water into the coffee machine. The hot water flows into the coffee capsule and mixes with the coffee powder, and finally the coffee liquid flows out for people to enjoy.

[0004] The utility model with the authorization announcement number CN204071762U discloses "a capsule piercing mechanism for a capsule coffee machine". The upper end of the main body is solid. When the piercing mechanism pierces the coffee capsule, the coffee liquid flows into the diversion cavity from the diversion port part on the side of the main body inside the coffee capsule, and then flows out from the diversion port part outside the coffee capsule or the diversion cavity connected to the lower end of the main body, preventing the filter screen in the coffee capsule from being sucked into the diversion cavity due to water pressure and causing the filter screen to rupture, and also avoiding the diversion cavity from being blocked by the filter screen rupture, ensuring the smooth outflow of the coffee liquid.

[0005] The capsule piercing mechanism does not have a filter, so a filter needs to be installed in each coffee capsule. After the coffee capsule is used, the filter is also discarded, which causes waste and high production costs of coffee capsules and complicated production processes. It can only pierce one part of the coffee capsule, and there is a problem of slow coffee liquid outflow speed. Utility Model Content

[0006] In order to overcome at least one of the technical problems existing in the prior art, the utility model provides a coffee capsule puncturing and filtering structure for a coffee machine, which is quick and easy to install and disassemble, the filter net can be repeatedly cleaned and reused, and can also be replaced, and multiple parts can be punctured at one time, and a guide groove is provided, so that the coffee liquid flows out faster.

[0007] A coffee capsule piercing and filtering structure of a coffee machine, comprising a hollow cup, a cup cavity opened in the hollow cup, a convex ring provided on the inner bottom surface of the hollow cup, a receiving cavity formed within the convex ring, a through liquid outlet hole opened at the bottom of the receiving cavity, the liquid outlet hole communicating with the receiving cavity, multiple convex ribs provided on the inner bottom surface of the receiving cavity, a diversion groove formed between adjacent two convex ribs, each diversion groove communicating with the liquid outlet hole, a filter net and a pressing member sequentially installed in the receiving cavity, each convex rib supporting the filter net, the outer wall of the pressing member closely adhering to the inner wall of the receiving cavity, the pressing member detachably pressing the filter net in the receiving cavity, the pressing member including a circular plate, multiple through grooves opened on the circular plate, and multiple piercing protrusions provided at one end of the circular plate.

[0008] In some embodiments, both the filter net and the pressing member are circular, the height of the convex ring is greater than the height of the filter net and the circular plate, each piercing protrusion extends to the upper end of the convex ring, the height of the piercing protrusion located in the middle of the circular plate is higher than that of the other piercing protrusions, and multiple drainage grooves are opened on the outer wall of the piercing protrusion located in the middle of the circular plate.

[0009] In some embodiments, multiple limiting ribs are provided on the inner wall of the hollow cup, a limiting ring is provided at the top of the hollow cup, and the diameter of the limiting ring is greater than the diameter of the hollow cup.

[0010] In some embodiments, a liquid outlet pipe and an insertion pipe are sequentially provided at the outer bottom of the hollow cup, the liquid outlet pipe communicates with the liquid outlet hole, and the insertion pipe is provided around the liquid outlet pipe.

[0011] In some embodiments, a support ring is provided around the insertion pipe, and the support ring, the insertion pipe and the liquid outlet pipe are concentrically arranged.

[0012] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0013] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0014] Figure 1 is the front structural schematic diagram of the coffee machine of the present application;

[0015] Figure 2 is Figure 1 the partial split structural schematic diagram of

[0016] Figure 3 is Figure 2 the detailed structural schematic diagram at position A in

[0017] Figure 4 is Figure 3 the split structural schematic diagram at position B in

[0018] Figure 5 It is a schematic top view structure diagram of a hollow cup;

[0019] Figure 6 It is a schematic bottom view structure diagram of a hollow cup;

[0020] Figure 7 It is a schematic three-dimensional structure diagram of a pressing member.

[0021] Reference numerals:

[0022] Cup body 1, water adding chamber 2, outer cover 3, liquid outlet 300, insertion ring 301;

[0023] Hollow cup 4, cup cavity 400, convex ring 401, accommodating cavity 402, liquid outlet hole 403, convex rib 404, diversion groove 405, limiting rib 406, limiting ring 407, liquid outlet pipe 408, insertion pipe 409, support ring 410;

[0024] Capsule cup 5, coffee capsule 6, filter net 7;

[0025] Pressing member 8, circular plate 800, through groove 801, puncturing protrusion 802, drainage groove 803. Detailed implementation manners

[0026] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0027] In the description of the present utility model, it should be understood that for the orientation description, such as the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present utility model.

[0028] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, "greater than", "less than", "exceeding", etc. are understood as not including the present number, "above", "below", "within", etc. are understood as including the present number. If there is a description of "first", "second", it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Referring to Figure 1 - Figure 2 , the capsule coffee machine is also called a capsule coffee cup, which is a small cup-shaped coffee-making device. The capsule coffee cup involved in the present application includes a cup body 1, a water addition chamber 2 provided at the top of the cup body 1, a water pump (not shown in the figure) provided inside the cup body 1, an outer cover 3 detachably connected to the lower end of the cup body 1, a hollow cup 4 sleeved inside the outer cover 3, and a capsule cup 5 sleeved inside the hollow cup 4. The capsule cup 5 is used to insert a coffee capsule 6 filled with coffee powder inside. The water pump is used to suck the hot water in the water addition chamber 2 into the water pipe in the cup body 1, and the water pipe is also communicated with the water inlet opened at the top of the capsule cup 5. A puncturing structure may also be provided at the inner top of the capsule cup 5 for puncturing the upper end of the coffee capsule 6. The puncturing structure may be a knife body, a cone body, etc., so that water enters the coffee capsule 6 to be mixed with the coffee powder, and then the coffee liquid flows out from the puncture opening of the sealing film at the lower end.

[0031] Referring again to Figure 1 - Figure 7, the present application relates to a coffee capsule puncturing and filtering structure of a coffee machine, which includes a hollow cup 4 with a cylindrical top opening and a cup cavity 400 opened in the hollow cup 4. A convex ring 401 is provided on the inner bottom surface of the hollow cup 4. An annular space is formed between the outer wall of the convex ring 401 and the inner wall of the hollow cup 4. The height of the convex ring 401 is lower than the height of the hollow cup 4. The height of the convex ring 401 can be set to 0.5 to 1.5 cm, or other suitable heights. A receiving cavity 402 is formed within the convex ring 401. A through liquid outlet hole 403 is opened at the bottom of the receiving cavity 402. The liquid outlet hole 403 can communicate with the receiving cavity 402 and the cup cavity 400. A plurality of evenly distributed convex ribs 404 are provided on the inner bottom surface of the receiving cavity 402. A diversion groove 405 is formed between two adjacent convex ribs 404. Each diversion groove 405 communicates with the liquid outlet hole 403. A filter screen 7 and a pressing member 8 are sequentially installed in the receiving cavity 402. The filter screen 7 is used to prevent coffee powder with larger particles from passing through. By changing the mesh size of the filter screen 7, the filtering fineness can be changed. Each convex rib 404 supports the filter screen 7 to prevent the filter screen 7 from directly contacting or closely adhering to the inner bottom surface of the receiving cavity 402. The provision of the convex ribs 404 and the diversion grooves 405 can prevent blockage and increase the outflow speed of the liquid. The outer wall of the pressing member 8 is closely attached to the inner wall of the receiving cavity 402. The pressing member 8 can detachably press the filter screen 7 in the receiving cavity 402. A certain external force is required to remove the filter screen 7 and the pressing member 8 from the receiving cavity 402. The pressing member 8 includes a circular plate 800, a plurality of evenly distributed through grooves 801 opened on the circular plate 800, and a plurality of puncturing protrusions 802 evenly provided on one end surface of the circular plate 800, which can be conical protrusions with a smaller upper end and a larger lower end.

[0032] In use, first place the filter net 7 flat in the accommodation cavity 402 inside the convex ring 401, then press the pressing member 8 into the accommodation cavity 402. The outer wall of the pressing member 8 is in close contact with the inner wall of the accommodation cavity 402, and the bottom plane of the pressing member 8 tightly presses on the top plane of the filter net 7. Then insert the capsule cup 5 loaded with the coffee capsule 6 into the cup cavity 400 of the hollow cup 4, and then insert the above two assemblies into the outer cover 3. The outer cover 3 is screwed tightly to the lower end of the cup body 1 by means of threaded connection; during the process of inserting the capsule cup 5 into the cup cavity 400, as long as the capsule cup 5 is pressed forcefully, each puncturing protrusion 802 can puncture the sealing film of the coffee capsule 6 synchronously or sequentially; in addition, during the process of threaded connection between the outer cover 3 and the coffee machine, because the capsule cup 5 will be continuously squeezed, the distance between the sealing film of the coffee capsule 6 and each puncturing protrusion 802 becomes smaller and smaller. Therefore, finally, the sealing film of the coffee capsule 6 will be punctured; during the above process, the upper end of the capsule will also be punctured by the puncturing structure located at the inner top of the capsule cup 5; then start the water pump, so that the hot water in the water adding chamber 2 is injected into the coffee capsule 6 through the water pipe, mixed with the coffee powder, and then the coffee liquid flows out from the puncturing opening of the sealing film at the lower end. Then the coffee liquid is filtered by the filter net 7 and flows into the diversion groove 405 in the accommodation cavity 402, and then flows out from the liquid outlet hole 403. The installation and disassembly of the present application are convenient and fast. The filter net 7 can be reused, can also be disassembled for cleaning, and can also be replaced. Multiple puncturing protrusions 802 can pierce multiple parts at one time, and a diversion groove 405 is provided, so that the coffee liquid flows out quickly and is not easily blocked.

[0033] In some embodiments, both the filter net 7 and the pressing member 8 are circular, so as to match the shape of the convex ring 401, which is convenient for installation and fixation. The height of the convex ring 401 is greater than the heights of the filter net 7 and the circular plate 800 to prevent the above two from moving out of the convex ring 401. Each puncturing protrusion 802 extends to the upper end of the convex ring 401 to facilitate puncturing the sealing film of the coffee capsule 6. The height of the puncturing protrusion 802 located in the middle of the circular plate 800 is higher than the heights of the remaining puncturing protrusions 802, and the heights of the remaining puncturing protrusions 802 can be the same or different; when being pressed, the puncturing protrusion 802 in the middle can first puncture the sealing film of the coffee capsule 6, and then the other puncturing protrusions 802 subsequently puncture the sealing film of the coffee capsule 6, avoiding the greater resistance when puncturing simultaneously. A plurality of drainage grooves 803 are evenly formed on the outer wall of the puncturing protrusion 802 located in the middle of the circular plate 800 to facilitate the flow of the coffee powder mixture.

[0034] In some embodiments, four limiting ribs 406 are uniformly arranged on the inner wall of the hollow cup 4. They can contact the outer wall of the hollow cylindrical capsule cup 5 to prevent it from shaking arbitrarily and improve the stability during use. A limiting ring 407 is arranged at the top of the hollow cup 4. It can be embedded in the limiting groove at the top of the outer cover 3 to achieve limiting; the diameter of the limiting ring 407 is larger than the diameter of the hollow cup 4, and their cross-sections are generally T-shaped.

[0035] In some embodiments, a liquid outlet pipe 408 and an insertion pipe 409 are successively arranged at the outer bottom of the hollow cup 4. The liquid outlet pipe 408 is communicated with the liquid outlet hole 403. The hollow cup 4, the liquid outlet pipe 408, and the liquid outlet hole 403 can be integrally injection-molded. The liquid outlet pipe 408 is used to be hermetically sleeved and communicated with the liquid outlet 300 opened at the bottom of the outer cover 3. Finally, the coffee liquid flows out from the liquid outlet 300 for the user to drink; the insertion pipe 409 is arranged on the periphery of the liquid outlet pipe 408. After the insertion pipe 409 is sleeved with a sealing ring, it is used to be hermetically sleeved with the insertion ring 301 located inside the outer cover 3 to improve the leak-proof performance.

[0036] In some embodiments, a support ring 410 is arranged on the periphery of the insertion pipe 409. The support ring 410, the insertion pipe 409, and the liquid outlet pipe 408 are concentrically arranged. The lower end face of the support ring 410 can be used to contact the inner bottom plane of the outer cover 3, playing a role in support and increasing the contact surface, improving the stability of the connection, and reducing or preventing the hollow cup 4 from shaking.

[0037] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification. Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A coffee capsule puncturing and filtering structure for a coffee machine, comprising a hollow cup and a cup cavity opened in the hollow cup, wherein: A convex ring is arranged on the inner bottom surface of the hollow cup, and a accommodating cavity is formed in the convex ring. A through liquid outlet is opened at the bottom of the accommodating cavity, and the liquid outlet is connected with the accommodating cavity. A plurality of convex ribs are arranged on the inner bottom surface of the accommodating cavity, and a guide groove is formed between two adjacent convex ribs, and each guide groove is connected with the liquid outlet. A filter screen and a pressing piece are sequentially installed in the accommodating cavity, and each convex rib supports the filter screen. The outer wall of the pressing piece is in close contact with the inner wall of the accommodating cavity, and the pressing piece presses the filter screen in the accommodating cavity so that it can be detached. The pressing piece includes a circular plate, a plurality of through grooves opened on the circular plate, and a plurality of puncture protrusions arranged at one end of the circular plate.

2. The coffee capsule piercing and filtering structure of the coffee machine according to claim 1, characterized in that: The filter screen and the pressing piece are both circular, the height of the convex ring is greater than the height of the filter screen and the circular plate, each puncture protrusion extends to the upper end of the convex ring, the height of the puncture protrusion located in the middle of the circular plate is higher than the other puncture protrusions, and a plurality of drainage grooves are provided on the outer wall of the puncture protrusion located in the middle of the circular plate.

3. The coffee capsule piercing and filtering structure of the coffee machine according to claim 2, characterized in that: A plurality of limiting ribs are arranged on the inner wall of the hollow cup, and a limiting ring is arranged on the top of the hollow cup, wherein the diameter of the limiting ring is greater than the diameter of the hollow cup.

4. The coffee capsule piercing and filtering structure of the coffee machine according to claim 3, characterized in that: A liquid outlet pipe and a plug-in pipe are arranged in sequence on the outer bottom of the hollow cup. The liquid outlet pipe is communicated with the liquid outlet hole, and the plug-in pipe is arranged on the periphery of the liquid outlet pipe.

5. The coffee capsule piercing and filtering structure of the coffee machine according to claim 4, characterized in that: A support ring is arranged on the periphery of the plug-in tube, and the support ring, the plug-in tube and the liquid outlet tube are concentrically arranged.

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