Portable coffee machine

Abstract

The utility model provides a portable coffee machine, and relates to the technical field of electric appliances, the portable coffee machine comprises an upper cup body, a lower cup body and a cup cover which are sequentially arranged from top to bottom, the bottom of the upper cup body is detachably connected with the top of the lower cup body, and the cup cover is detachably connected with the bottom of the lower cup body; a brewing cup is detachably mounted at the bottom of the lower cup body, and the lower cup body is provided with a first passage communicated with the brewing cup; when the upper cup body is separated from the lower cup body, the brewing cup is connected with the atmosphere through the first passage for pressure relief. An upper cup body and a lower cup body which are detachably connected are arranged, and a first passage communicated with a brewing cup is arranged in the lower cup body. When the upper cup body and the lower cup body are separated, the brewing cup can be connected with the atmosphere through the first channel to achieve pressure relief, and the problems that due to the fact that a coffee capsule sealing aluminum film is too thick, the internal pressure of the brewing cup is too large, a coffee capsule is difficult to take down, and a machine is possibly damaged are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliances, and particularly relates to a portable coffee machine. Background Art

[0002] Due to its remarkable characteristics of being small, light, and convenient to carry, the portable coffee machine has become an excellent choice for coffee lovers to enjoy delicious coffee during travel or various outdoor scenarios. Its usage method is relatively simple. Generally, only need to place the coffee capsule or coffee powder in a special brewing cup, then start the machine, and with the help of the built-in extraction system, use high-pressure hot water to extract the coffee powder in the capsule, and a cup of coffee with rich aroma can be quickly obtained.

[0003] However, it should be noted that the quality of coffee capsules produced by many different manufacturers is uneven, especially the key part of the sealing aluminum film. During the entire extraction process of the portable coffee machine, the high-pressure hot water should originally break through the sealing aluminum film so that the coffee liquid can flow out smoothly. However, the thickness of the sealing aluminum film of coffee capsules produced by different coffee capsule manufacturers is inconsistent, and the thicker sealing aluminum film may not be broken through by the strong impact of high-pressure hot water. This situation will cause the pressure inside the brewing cup of the portable coffee machine to rise, which will damage the internal structure of the portable coffee machine, shorten the service life of the machine, and even may cause certain safety hazards. In addition, once the pressure inside the brewing cup of the portable coffee machine increases, there will also be a problem that it is difficult to remove the coffee capsule from the portable coffee machine smoothly, thus causing a lot of inconvenience to users. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a portable coffee machine. When the upper cup body and the lower cup body are separated, the brewing cup can be connected to the atmosphere through the first passage to achieve pressure relief, solving the problems of excessive pressure inside the brewing cup, difficulty in removing the coffee capsule, and possible damage to the machine caused by the too thick sealing aluminum film of the coffee capsule.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A portable coffee machine, comprising an upper cup body, a lower cup body, and a cup cover which are arranged in sequence from top to bottom. The bottom of the upper cup body is detachably connected to the top of the lower cup body, and the cup cover is detachably connected to the bottom of the lower cup body;

[0007] The bottom of the lower cup body is detachably installed with a brewing cup, and the lower cup body is provided with a first passage communicating with the brewing cup; when the upper cup body is separated from the lower cup body, the brewing cup is connected to the atmosphere through the first passage to relieve pressure.

[0008] Preferably, a puncture needle is provided at the bottom of the lower cup body. The puncture needle is partially disposed within the brewing cup. A second passage communicating with the first passage is provided within the puncture needle, and the second passage communicates with the brewing cup.

[0009] Preferably, a puncture needle is provided at the bottom of the lower cup body. A second passage is provided at the bottom of the lower cup body. Two ends of the second passage communicate with the first passage and the brewing cup respectively. The puncture needle is disposed within the second passage, and the puncture needle is partially disposed within the brewing cup.

[0010] Preferably, an engagement ring is provided at the top of the lower cup body. The engagement ring is detachably connected to the bottom of the upper cup body. A plurality of clamping blocks are provided on the inner wall of the engagement ring, and a plurality of clamping grooves cooperating with the clamping blocks are recessed on the outer sidewall of the bottom of the upper cup body.

[0011] Preferably, a plurality of friction rings and a plurality of friction blocks are provided on the top surface of the upper cup body. The friction rings and the friction blocks are used to increase the frictional force between the upper cup body and the lower cup body.

[0012] Preferably, a telescopic rod is provided within the upper cup body. The upper cup body is provided with a control member for controlling the telescopic movement of the telescopic rod. An activity hole is formed at the bottom of the upper cup body for the telescopic rod to perform telescopic movement. A fixing hole for clamping the telescopic rod is recessed on the top surface of the lower cup body. The control member controls the telescopic section of the telescopic rod to be clamped into the fixing hole to stabilize the connection relationship between the upper cup body and the lower cup body.

[0013] Preferably, the control member includes a connection block and a slider. The connection block is connected to the outer sidewall of the telescopic section of the telescopic rod. The slider is connected to the connection block. A sliding hole for the slider to slide along the telescopic direction of the telescopic rod is formed on the outer sidewall of the upper cup body; when the slider slides to one end of the sliding hole close to the bottom of the upper cup body, the telescopic section of the telescopic rod is clamped into the fixing hole; when the slider slides to one end of the sliding hole away from the bottom of the upper cup body, the telescopic section of the telescopic rod disengages from the fixing hole.

[0014] Preferably, a water tank, a water pump, a third passage, and a fourth passage are provided within the upper cup body. The water tank communicates with the water pump through the third passage. The fourth passage communicates with the water outlet end of the water pump, and the fourth passage is detachably connected to the first passage.

[0015] Preferably, one end of the fourth passage protrudes from the bottom surface of the upper cup body. The part of the fourth passage protruding from the bottom surface of the upper cup body is set as a connection end. A connection ferrule is provided on a part of the outer side wall of the connection end. The connection ferrule is close to the upper cup body. A connection track for connecting the connection ferrule is protruded from the top surface of the lower cup body. The connection track is communicated with the first passage; when the connection ferrule is inserted into the connection track, the fourth passage is communicated with the first passage.

[0016] Preferably, a sealing ring is provided on the outer side wall of the connection ferrule.

[0017] Compared with the prior art, the utility model has the following advantages.

[0018] 1. By providing a detachable upper cup body and a lower cup body, and providing a first passage communicated with the brewing cup in the lower cup body. When the upper cup body is separated from the lower cup body, the brewing cup can be connected with the atmosphere through the first passage to relieve pressure, solving the problems of excessive internal pressure in the brewing cup, difficulty in removing the coffee capsule, and possible damage to the machine caused by the too thick aluminum film for sealing the coffee capsule.

[0019] 2. Through the setting of the first passage, the second passage or the second channel at the bottom of the lower cup body, the first passage, the second passage or the second channel can not only introduce high-pressure water, but also be used for pressure relief, with a simple structure and multiple functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic diagram of the overall structure of a portable coffee machine according to Embodiment 1 of the present invention;

[0022] Figure 2 It is a schematic diagram of the internal structure of a portable coffee machine according to Embodiment 1 of the present invention;

[0023] Figure 3 It is a schematic diagram of the overall structure of the upper cup body and the lower cup body of a portable coffee machine according to Embodiment 1 of the present invention;

[0024] Figure 4 It is an exploded view of the upper cup body and the lower cup body of a portable coffee machine according to Embodiment 1 of the present invention;

[0025] Figure 5Schematic diagram of the internal structure of the connection ring in a portable coffee machine according to Embodiment 1 of the present utility model;

[0026] Figure 6 Schematic diagram of the overall structure of the upper cup body in a portable coffee machine according to Embodiment 1 of the present utility model;

[0027] Figure 7 For Figure 6 Enlarged schematic diagram of part A in

[0028] Figure 8 Schematic diagram of the internal structure of the upper cup body in a portable coffee machine according to Embodiment 1 of the present utility model;

[0029] Figure 9 Exploded view of the lower cup body and the brewing cup in a portable coffee machine according to Embodiment 1 of the present utility model;

[0030] Figure 10 For Figure 9 Enlarged schematic diagram of part B in

[0031] Reference numerals in the drawings: 1, brewing cup; 2, cup lid; 3, upper cup body; 31, clamping groove; 32, telescopic rod; 321, movable hole; 33, sliding hole; 34, unlocking mark; 35, locking mark; 36, water tank; 37, water pump; 38, third passage; 39, fourth passage; 391, connection end; 392, connection collar; 393, sealing ring; 4, lower cup body; 41, first passage; 42, connection ring; 43, clamping block; 44, friction ring; 45, friction block; 46, puncture needle; 47, second passage; 48, connection track; 49, fixing hole; 5, control member; 51, connection block; 511, socket ring; 512, linkage block; 52, slider; 6, fixing ring. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art without making creative efforts based on the embodiments of the present utility model belong to the protection scope of the present utility model.

[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It 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 cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0034] 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 can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. 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.

[0035] Embodiment 1

[0036] See Figure 1 and Figure 2 As shown in [relevant figures], the present embodiment of the utility model discloses a portable coffee machine, which includes an upper cup body 3, a lower cup body 4, and a cup lid 2 arranged in sequence from top to bottom. The bottom of the upper cup body 3 is detachably connected to the top of the lower cup body 4, and the cup lid 2 is detachably connected to the bottom of the lower cup body 4; a brewing cup 1 is detachably installed at the bottom of the lower cup body 4, and a first passage 41 communicating with the brewing cup 1 is provided at the top of the lower cup body 4; when the upper cup body 3 is separated from the lower cup body 4, the brewing cup 1 is connected to the atmosphere through the first passage 41 for pressure relief.

[0037] Specifically, the bottom of the lower cup body 4 is detachably connected to the cup lid 2. In this embodiment, the cup lid 2 is connected to the lower cup body 4 by means of plugging, and a rubber pad protrudes from the inner wall of the cup lid 2. The rubber pad increases the friction between the lower cup body 4 and the cup lid 2 to stabilize the connection relationship between the cup lid 2 and the lower cup body 4. In some other embodiments, the bottom of the lower cup body 4 and the cup lid 2 can be detachably connected by means of snap connection, magnetic connection, and snap-fit connection, etc. A fixing ring 6 for fixing the brewing cup 1 protrudes from the bottom of the lower cup body 4, a concave thread is recessed in the inner wall of the fixing ring 6, and a convex thread matching the concave thread protrudes from the outer side wall of the brewing cup 1. The brewing cup 1 is connected to the lower cup body 4 by means of threaded connection.

[0038] When a conventional portable coffee machine is extracting coffee normally, if the sealing aluminum film of the coffee capsule is too thick and the sealing aluminum film is not broken by high-pressure water, since the conventional portable coffee machine is of an integrated structure, there is no pressure relief structure in the brewing cup 1, which easily causes the internal pressure of the brewing cup 1 to gradually increase. This not only makes it difficult to remove the coffee capsule, but also easily damages the internal structure of the brewing cup 1. By disassembling the upper cup body 3 and the lower cup body 4, separating the upper cup body 3 from the lower cup body 4, the high pressure in the brewing cup 1 can be easily connected to the atmosphere through the first passage 41, realizing the pressure relief of the brewing cup 1, ensuring the safe operation of the machine, avoiding damage to the internal structure caused by excessive pressure and shortening the service life of the machine, and at the same time facilitating the user to remove the coffee capsule.

[0039] See Figure 3 and Figure 4 , at the top of the lower cup body 4, there is an engagement ring 42 detachably connected to the upper cup body 3. The inner wall of the engagement ring 42 is provided with several clamping blocks 43, and several clamping grooves 31 cooperating with the clamping blocks 43 are recessed on the outer side wall at the bottom of the upper cup body 3.

[0040] Specifically, the clamping groove 31 is L-shaped. The clamping block 43 slides through the vertical section of the clamping groove 31 to the horizontal section of the clamping groove 31 to connect the upper cup body 3 and the lower cup body 4. The inner wall of the engagement ring 42 is provided with multiple clamping blocks 43, and multiple clamping grooves 31 cooperating with the clamping blocks 43 are recessed on the outer side wall at the bottom of the upper cup body 3. In this embodiment, four clamping blocks 43 are provided and four clamping grooves 31 are provided. When the upper cup body 3 and the lower cup body 4 need to be connected, insert the clamping block 43 along the vertical section of the clamping groove 31, and then rotate the lower cup body 4 to make the clamping block 43 slide to the horizontal section of the clamping groove 31, realizing the stable connection of the upper cup body 3 and the lower cup body 4. When the upper cup body 3 and the lower cup body 4 need to be disassembled, reverse the operation to easily separate the upper cup body 3 and the lower cup body 4. Through the cooperation of the clamping blocks 43 on the inner wall of the engagement ring 42 and the L-shaped clamping grooves 31 on the outer side wall at the bottom of the upper cup body 3, reliable detachable connection of the upper cup body 3 and the lower cup body 4 is realized, and the installation and disassembly process of the upper cup body 3 and the lower cup body 4 becomes simple.

[0041] See Figure 5 , Figure 6 and Figure 8 , a telescopic rod 32 is provided in the upper cup body 3. The upper cup body 3 is provided with a control member 5 for controlling the telescopic movement of the telescopic rod 32. An activity hole 321 for the telescopic movement of the telescopic rod 32 is opened at the bottom of the upper cup body 3. A fixing hole 49 for clamping the telescopic rod 32 is recessed on the top surface of the lower cup body 4. The control member 5 controls the telescopic section of the telescopic rod 32 to be clamped into the fixing hole 49 to stabilize the connection relationship between the upper cup body 3 and the lower cup body 4.

[0042] Specifically, a telescopic rod 32 is installed inside the upper cup body 3. The telescopic rod 32 is located inside the upper cup body 3 and close to the side wall of the upper cup body 3. A fixing hole 49 for the telescopic rod 32 to be snap-fitted is recessed in the top surface of the lower cup body 4 at a position corresponding to the telescopic rod 32. When the snap block 43 is snap-fitted into the horizontal section of the snap groove 31, the control member 5 controls the telescopic rod 32 to expand and contract, so that the end of the telescopic section of the telescopic rod 32 away from the fixed section of the telescopic rod 32 is snap-fitted into the fixing hole 49, reducing the looseness at the connection between the upper cup body 3 and the lower cup body 4 during use; at the same time, the connection relationship between the upper cup body 3 and the lower cup body 4 is further consolidated, ensuring the stability of the structure of the portable coffee machine during the high-pressure extraction process.

[0043] See Figure 5 , the control member 5 includes a connection block 51 and a slider 52. The connection block 51 is connected to the outer side wall of the telescopic section of the telescopic rod 32. The slider 52 is connected to the connection block 51. A sliding hole 33 for the slider 52 to slide along the telescopic direction of the telescopic rod 32 is provided on the outer side wall of the upper cup body 3; when the snap block 43 slides to the horizontal section of the snap groove 31 and when the slider 52 slides to one end of the sliding hole 33 close to the bottom of the upper cup body 3, the telescopic section of the telescopic rod 32 is snap-fitted into the fixing hole 49; when the snap block 43 slides to the horizontal section of the snap groove 31 and when the slider 52 slides to one end of the sliding hole 33 away from the bottom of the upper cup body 3, the telescopic section of the telescopic rod 32 disengages from the fixing hole 49.

[0044] Specifically, the connection block 51 includes a socket ring 511 and a linkage block 512. The socket ring 511 is sleeved on the outer side wall of the telescopic section of the telescopic rod 32. The linkage block 512 is fixedly connected to the outer side wall of the socket ring 511 and is close to the sliding hole 33. The linkage block 512 is fixedly connected to the slider 52. The slider 52 is installed in the sliding hole 33, and a part of the slider 52 protrudes from the outer side wall of the upper cup body 3. The length direction of the sliding hole 33 is the same as the telescopic direction of the telescopic rod 32. When the snap block 43 slides to the horizontal section of the snap groove 31, the user can slide the slider 52 as needed to snap the telescopic section of the telescopic rod 32 into the fixing hole 49 or disengage it from the fixing hole 49 to achieve flexible control.

[0045] See Figure 1 and Figure 3 , an unlocking mark 34 and a locking mark 35 are provided on the outer side wall of the upper cup body 3. The unlocking mark 34 is located at one end of the sliding hole 33 away from the bottom of the upper cup body 3, and the locking mark 35 is located at one end of the sliding hole 33 close to the bottom of the upper cup body 3. The obvious unlocking mark 34 and locking mark 35 are provided on the outer side wall of the upper cup body 3 to visually prompt the user of the current operation state, improving the accuracy and safety of use.

[0046] See Figure 4 and Figure 5, on the top surface of the upper cup body 3, there are multiple friction rings 44 and multiple friction blocks 45. The friction rings 44 and the friction blocks 45 are used to increase the frictional force between the upper cup body 3 and the lower cup body 4. In this embodiment, the materials of the friction rings 44 and the friction blocks 45 are rubber. The friction rings 44 and the friction blocks 45 on the top surface of the upper cup body 3 effectively increase the frictional force, making the connection more stable, and reducing the load borne by the telescopic rod 32, reducing the risk of damage to the telescopic rod 32, and protecting the telescopic rod 32.

[0047] See Figure 2 , Figure 9 and Figure 10 , at the bottom of the lower cup body 4, there is a puncture needle 46. The puncture needle 46 is arranged at one end of the first passage 41. The puncture needle 46 is partially placed in the brewing cup 1. There is a second passage 47 communicated with the first passage 41 in the puncture needle 46, and the second passage 47 is communicated with the brewing cup 1. Specifically, the puncture needle 46 is located at the middle position of the bottom of the lower cup body 4, and the puncture needle 46 is integrally formed with the bottom of the lower cup body 4. If the sealing aluminum film of the coffee capsule in the brewing cup 1 is not broken by high-pressure water and the internal pressure in the brewing cup 1 is too high, the user can disassemble the upper cup body 3 and the lower cup body 4, so that the high pressure in the brewing cup 1 is connected to the atmosphere along the second passage 47 and the first passage 41 to relieve the pressure. The internal pressure of the brewing cup 1 is reduced, which is beneficial for the user to remove the brewing cup 1 and the coffee capsule.

[0048] Alternatively, in some other embodiments, at the bottom of the lower cup body 4, there is a puncture needle 46, and there is a second passage at the bottom of the lower cup body 4. The two ends of the second passage are respectively communicated with the first passage 41 and the brewing cup 1. The puncture needle 46 is arranged in the second passage, and the puncture needle 46 is partially placed in the brewing cup 1. Specifically, a second passage is directly arranged to be communicated with the first passage 41 and the brewing cup 1, and the puncture needle 46 is arranged in the second passage, and the puncture needle 46 is only responsible for puncturing the coffee capsule. If the sealing aluminum film of the coffee capsule in the brewing cup 1 is not broken by high-pressure water and the internal pressure in the brewing cup 1 is too high, the user can disassemble the upper cup body 3 and the lower cup body 4, so that the high pressure in the brewing cup 1 is connected to the atmosphere along the second passage and the first passage 41 to relieve the pressure. The internal pressure of the brewing cup 1 is reduced, which is beneficial for the user to remove the brewing cup 1 and the coffee capsule, and reduces the damage to the brewing cup 1 by high pressure.

[0049] See Figure 2, a water tank 36, a water pump 37, a third passage 38, and a fourth passage 39 are installed inside the upper cup body 3. The water tank 36 is communicated with the water pump 37 through the third passage 38. The fourth passage 39 is communicated with the water outlet end of the water pump 37, and the fourth passage 39 is detachably connected to the first passage 41. Specifically, one end of the third passage 38 is communicated with the water tank 36, the other end of the third passage 38 is communicated with the water pump 37, one end of the fourth passage 39 is communicated with the water outlet end of the water pump 37, and the end of the fourth passage 39 away from the water pump 37 is detachably connected to the first passage 41. When the portable coffee machine is extracting coffee, the water in the water tank 36 is conveyed to the water pump 37 through the third passage 38. After being pressurized by the water pump 37, the high-pressure water sequentially enters the brewing cup 1 through the fourth passage 39, the first passage 41, and the second passage 47. When the brewing cup 1 of the portable coffee machine needs to be depressurized, the upper cup body 3 is detached from the lower cup body 4 to separate the upper cup body 3 from the lower cup body 4. The high pressure in the brewing cup 1 can be released to the atmospheric pressure through the second passage 47 and the first passage 41, thereby achieving depressurization. The first passage 41 and the second passage 47 can not only allow high-pressure water to pass through, but also be used for depressurization. The structure is simple and the functions are diverse.

[0050] See Figure 6 and Figure 7 , one end of the fourth passage 39 protrudes from the bottom surface of the upper cup body 3. The part of the fourth passage 39 protruding from the bottom surface of the upper cup body 3 is set as a connection end 391. A connection ferrule 392 is provided on a part of the outer side wall of the connection end 391. The connection ferrule 392 is close to the upper cup body 3. A connection track 48 for connecting the connection ferrule 392 is protruded from the top surface of the lower cup body 4. The connection track 48 is communicated with the first passage 41. When the connection ferrule 392 is inserted into the connection track 48, the fourth passage 39 is communicated with the first passage 41. Specifically, the end of the fourth passage 39 away from the water pump 37 protrudes from the ground of the upper cup body 3. A connection ferrule 392 is fixedly connected to a part of the outer side wall of the connection end 391. The connection ferrule 392 is close to the bottom surface of the upper cup body 3. When it is necessary to connect the fourth passage 39 and the first passage 41, the connection ferrule 392 is inserted into the connection track 48, and the accurate connection between the fourth passage 39 and the first passage 41 can be achieved. When it is necessary to disassemble the fourth passage 39 and the first passage 41, the connection ferrule 392 is directly pulled out of the connection track 48. The cooperation between the connection end 391 of the fourth passage 39, the connection ferrule 392 and the connection track 48 on the top surface of the lower cup body 4 ensures stable water flow conveyance during connection and is convenient and fast during disassembly.

[0051] See Figure 7, a sealing ring 393 is provided on the outer side wall of the connecting collar 392. In this embodiment, two sealing rings 393 are provided. When the connecting track 48 is connected to the connecting collar 392, the sealing ring 393 is squeezed, filling the gap and effectively preventing water leakage. The sealing ring 393 on the outer side wall of the connecting collar 392 improves the sealing performance of the connection, avoids water leakage and ensures the normal operation of the machine.

[0052] The implementation principle of this embodiment is as follows:

[0053] When it is necessary to connect and install the upper cup body 3 and the lower cup body 4, first insert the clamping block 43 on the inner wall of the connecting ring 42 along the vertical section of the clamping groove 31 of the upper cup body 3, and then rotate the lower cup body 4 so that the clamping block 43 slides to the horizontal section of the clamping groove 31; at the same time, the connecting collar 392 at the connecting end 391 of the fourth passage 39 is inserted into the connecting track 48 on the top surface of the lower cup body 4 to connect the fourth passage 39 with the first passage 41; then slide the slider 52 on the sliding hole 33 so that the slider 52 slides to one end of the sliding hole 33 close to the bottom of the upper cup body 3, and the slider 52 drives the linkage block 512 and the socket ring 511 to move towards the bottom of the upper cup body 3. At the same time, the socket ring 511 drives the telescopic section of the telescopic rod 32 to be clamped into the fixing hole 49 on the top surface of the lower cup body 4, realizing the stable connection between the upper cup body 3 and the lower cup body 4.

[0054] When it is necessary to disassemble the upper cup body 3 and the lower cup body 4 to relieve the pressure of the brewing cup 1, first slide the slider 52 to one end of the sliding hole 33 away from the bottom of the upper cup body 3 to disengage the telescopic section of the telescopic rod 32 from the fixing hole 49; then rotate the lower cup body 4 in the reverse direction so that the clamping block 43 slides out of the horizontal section of the clamping groove 31 to the vertical section, and then separate the upper cup body 3 from the lower cup body 4. At this time, the brewing cup 1 is communicated with the atmosphere through the first passage 41 and the second passage 47 to realize pressure relief and reduce the pressure in the brewing cup 1.

[0055] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A portable coffee machine, characterized in that, It includes an upper cup body (3), a lower cup body (4), and a cup lid (2) arranged from top to bottom in sequence. The bottom of the upper cup body (3) is detachably connected to the top of the lower cup body (4), and the cup lid (2) is detachably connected to the bottom of the lower cup body (4). A brewing cup (1) is detachably installed at the bottom of the lower cup body (4). The lower cup body (4) is provided with a first passage (41) communicating with the brewing cup (1). When the upper cup body (3) is separated from the lower cup body (4), the brewing cup (1) is connected to the atmosphere through the first passage (41) for pressure relief.

2. The portable coffee machine according to claim 1, characterized in that, A puncture needle (46) is provided at the bottom of the lower cup body (4). Part of the puncture needle (46) is placed inside the brewing cup (1). A second passage (47) communicating with the first passage (41) is provided inside the puncture needle (46), and the second passage (47) communicates with the brewing cup (1).

3. A portable coffee machine according to claim 1, characterized in that, A puncture needle (46) is provided at the bottom of the lower cup body (4). A second passage is provided at the bottom of the lower cup body (4). The two ends of the second passage are respectively communicated with the first passage (41) and the brewing cup (1). The puncture needle (46) is arranged inside the second passage, and part of the puncture needle (46) is placed inside the brewing cup (1).

4. A portable coffee machine according to claim 1, characterized in that, An adapter ring (42) is provided at the top of the lower cup body (4). The adapter ring (42) is detachably connected to the bottom of the upper cup body (3). A number of clamping blocks (43) are provided on the inner wall of the adapter ring (42), and a number of clamping grooves (31) cooperating with the clamping blocks (43) are recessed on the outer side wall of the bottom of the upper cup body (3).

5. A portable coffee machine according to claim 1, characterized in that, A number of friction rings (44) and a number of friction blocks (45) are provided on the top surface of the upper cup body (3). The friction rings (44) and the friction blocks (45) are used to increase the friction force between the upper cup body (3) and the lower cup body (4).

6. The portable coffee machine according to claim 1, characterized in that, A telescopic rod (32) is provided inside the upper cup body (3). The upper cup body (3) is provided with a control member (5) for controlling the telescopic movement of the telescopic rod (32). An activity hole (321) is opened at the bottom of the upper cup body (3) for the telescopic rod (32) to perform telescopic movement. A fixing hole (49) for clamping the telescopic rod (32) is recessed on the top surface of the lower cup body (4). The control member (5) controls the telescopic section of the telescopic rod (32) to be clamped into the fixing hole (49) to stabilize the connection relationship between the upper cup body (3) and the lower cup body (4).

7. A portable coffee machine according to claim 6, wherein, The control member (5) includes a connection block (51) and a slider (52). The connection block (51) is connected to the outer side wall of the telescopic section of the telescopic rod (32). The slider (52) is connected to the connection block (51). A sliding hole (33) for the slider (52) to slide along the telescopic direction of the telescopic rod (32) is formed in the outer side wall of the upper cup body (3). When the slider (52) slides to one end of the sliding hole (33) close to the bottom of the upper cup body (3), the telescopic section of the telescopic rod (32) is snapped into the fixing hole (49). When the slider (52) slides to the end of the sliding hole (33) far from the bottom of the upper cup body (3), the telescopic section of the telescopic rod (32) disengages from the fixing hole (49).

8. A portable coffee machine according to claim 1, wherein, A water tank (36), a water pump (37), a third passage (38) and a fourth passage (39) are arranged in the upper cup body (3). The water tank (36) is communicated with the water pump (37) through the third passage (38). The fourth passage (39) is communicated with the water outlet end of the water pump (37). The fourth passage (39) is detachably connected to the first passage (41).

9. The portable coffee machine according to claim 8, characterized in that, One end of the fourth passage (39) protrudes from the bottom surface of the upper cup body (3). The part of the fourth passage (39) protruding from the bottom surface of the upper cup body (3) is set as a connection end (391). A connection ferrule (392) is arranged on a part of the outer side wall of the connection end (391). The connection ferrule (392) is close to the upper cup body (3). A connection track (48) for connecting the connection ferrule (392) protrudes from the top surface of the lower cup body (4). The connection track (48) is communicated with the first passage (41). When the connection ferrule (392) is inserted into the connection track (48), the fourth passage (39) is communicated with the first passage (41).

10. A portable coffee machine according to claim 9, characterized in that, A sealing ring (393) is arranged on the outer side wall of the connection ferrule (392).

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