Portable coffee machine

Abstract

The utility model discloses a portable coffee machine which comprises a shell, a water tank assembly and a water pump support, the water tank assembly and the water pump support are arranged in a shell cavity, the water tank assembly comprises a tank body and a tank body support, the tank body support is fixed at the bottom end of the tank body, the tank body support is fixed at the head end of the water pump support through a first fastener, and the water pump support is fixed at the head end of the water pump support under the action of the first fastener. According to the scheme, the butt joint structure of the box body and the water pump support is improved, the box body support is fixed to the bottom end of the box body, the box body support and the water pump support are fixed through the first fastener, and the circumferential relative movement of the box body support and the water pump support is restrained; the phenomenon that an external connecting pipeline or line is damaged due to rotation of the box body is avoided, the fixing stability of the box body is improved, and the operation stability of the coffee machine is correspondingly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee devices, in particular to a portable coffee machine. Background Art

[0002] Portable coffee machines are popular due to their unique advantages. For example, they can be installed in a car. Generally, a common type of such coffee machine includes a housing, and a water tank assembly, a water pump, a water pump bracket, a control circuit board, a capsule chamber assembly, etc. are installed in the housing. The water pump is supported by the water pump bracket, the water pump is connected to the water tank and the capsule chamber, and the water pump bracket is docked with the water tank body. Commonly, the water tank body is fixed to the water pump bracket in a snap-fit manner. However, in this way, the phenomenon that the water tank body rotates circumferentially relative to the water pump bracket easily occurs, and mechanisms such as pipelines and circuits connected to the water tank body are easily damaged, affecting the stable operation of the coffee machine, which needs to be improved. Content of the Utility Model

[0003] To solve the above at least one technical defect, the utility model provides the following technical solutions:

[0004] This application document discloses a portable coffee machine, including a housing and a water tank assembly and a water pump bracket arranged in the housing cavity. The water tank assembly includes a box body and a box body bracket. The box body bracket is fixed at the bottom end of the box body, and the box body bracket is fixed to the first end of the water pump bracket through a first fastener. Under the action of the first fastener, the circumferential relative movement between the box body bracket and the water pump bracket is restricted.

[0005] In this solution, the docking structure between the box body and the water pump bracket is improved. The box body bracket is fixed at the bottom end of the box body, and the box body bracket and the water pump bracket are fixed through the first fastener, and their circumferential relative movement is restricted, avoiding the phenomenon that the external connection pipelines or circuits are damaged due to the rotation of the box body, improving the fixing stability of the box body, and correspondingly improving the operation stability of the coffee machine.

[0006] For the first fastener, such as a threaded type or a stud type, etc., for example, the threaded first fastener is screwed in longitudinally or transversely, etc. to fix the box body bracket and the water pump bracket, or for example, the stud first fastener is embedded into the corresponding holes of the box body bracket and the water pump bracket longitudinally or transversely, etc. to fix the two, and it should be noted that the connection of the first fastener should restrict their circumferential relative movement.

[0007] Further, the water pump bracket includes an upper bracket and a lower bracket connected to each other. A convex block is arranged on the top end surface of the upper bracket, and the convex block is fixed to the box body bracket through a first fastener. The configuration of the upper and lower brackets is convenient for the installation of the water pump, etc., and adding the convex block is convenient for fixing to the box body bracket through the first fastener.

[0008] Further, the box support is in a ring shape, the box support is sleeved at the bottom end of the box and fixed as a whole, the convex block is located in the ring opening of the ring body and abuts against the wall of the ring cavity, the first fastener is arranged horizontally, and the end of the first fastener passes through the box support and is connected to the convex block. During installation, the convex block can be used for pre-positioning the box support, further improving the stability of the box. After the box support and the convex block are butted, the horizontal arrangement of the first fastener facilitates restricting the circumferential relative movement between the upper support and the box support.

[0009] Further, it further includes a water pump and a capsule chamber assembly. The capsule chamber assembly is located below the lower support. The water pump is arranged between the upper support and the lower support and fixed to the lower support. The water outlet of the water pump is arranged downward, and the water outlet is directly connected to the water inlet of the capsule chamber assembly. The water outlet of the water pump is downward, that is, the water pump is inverted, and the water outlet is directly connected to the water inlet of the brewing seat in the capsule chamber assembly, eliminating the formation of water channels and the like, and further simplifying the structure. In addition, the direct connection between the water outlet of the water pump and the brewing seat reduces the loss of the water pump pressure and improves the coffee extraction effect. In addition, the water pump is fixed to the lower support, such as fixing the water pump to the lower support by screws, making the water pump more firmly fixed, and at the same time not causing damage to other devices, making the whole machine more reliable.

[0010] Further, the first fastener is of a threaded type, which is convenient for installation and disassembly.

[0011] Further, a control circuit board and a battery assembly are arranged in the cavity of the shell. The control circuit board is connected to the battery assembly, and a direct plug-in power supply type DC interface is arranged on the control circuit board. A jack is arranged at the corresponding position of the shell of the DC interface. In this solution, a DC interface is added on the basis of the original battery assembly, and it is connected to an external power supply and the like through the direct plug-in power supply type DC interface, and power supply can be realized without passing through the battery assembly. The two modes of power-on are convenient for use.

[0012] Further, a waterproof cap is inserted at the jack to improve the waterproof performance.

[0013] Further, a cup cover is arranged at the box opening of the box. The cup cover is in plug-in fit with the box opening. The cup cover includes an outer cover, an inner cover and an elastic seal. The seal is located between the inner cover and the outer cover. The diameter of the bottom end of the seal is larger than the diameter of the inner cover, and the diameter of the inner cover is smaller than the inner diameter of the box opening. When the cup cover is inserted into the box opening, the circumferential surface of the bottom end of the seal abuts against the wall of the box cavity. Compared with the conventional snap-type cup cover that needs to be rotated and then pulled out when opening, in this solution, the cup cover and the box opening are changed to a plug-in type fit, which is convenient for direct insertion and direct pulling. To improve the stability, an elastic seal is arranged between the inner and outer covers. When the cup cover is inserted into the box opening, the circumferential surface of the seal abuts against the cavity wall, increasing the resistance and sealing performance of pulling out.

[0014] Further, the cup cover further includes a decorative ring, a cover plate, and a second fastener. The cover plate, the decorative ring, the outer cover, the seal, and the inner cover are arranged in sequence from top to bottom. The decorative ring, the outer cover, and the inner cover are fixed together as a whole by the second fastener, and the seal is clamped by the inner cover and the outer cover. The cover plate is fixed to the decorative ring in a snap-fit manner, and the addition of the decorative ring, the cover plate, etc. improves the aesthetics.

[0015] Further, a plurality of ventilation holes are provided on the decorative ring, and insertion posts are provided at the bottom surface of the decorative ring. The insertion posts pass through the outer cover and are inserted into a through hole I formed at the seal. A through hole II is provided at the corresponding position of the inner cover of the through hole I. The configuration of the ventilation holes on the decorative ring and the insertion posts inserted into the through hole I facilitates the air outlet of the box body. For example, when the box body is heated, the steam is discharged, improving safety.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. The present utility model improves the structure of the water tank assembly. The fixation by the first fastener restricts the circumferential movement of the box body relative to the water pump bracket, improves the stability of the box body, and simultaneously improves the stability of the coffee machine during operation.

[0018] 2. The present utility model adds a direct plug-in power supply type DC interface to the control circuit board, which forms a dual-mode power supply in cooperation with the battery assembly, facilitating use.

[0019] 3. The present utility model improves the docking structure between the cup cover and the box opening. The two are inserted and matched, and the direct plug-in and direct unplugging are convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 1 It is a schematic diagram of the overall structure of the coffee machine in Embodiment 1;

[0022] Figure 2 is Figure 1 The structural schematic diagram after removing the housing and the cup body;

[0023] Figure 3 is Figure 1 The structural schematic diagram after removing the housing and the cup body;

[0024] Figure 4 is Figure 3 The cross-sectional structural schematic diagram;

[0025] Figure 5 is Figure 4Schematic diagram of the enlarged structure of part A;

[0026] Figure 6 It is a schematic diagram of the structure of the decorative ring;

[0027] Among them, the reference numerals are:

[0028] 1. Housing; 2. Cup lid; 3. Cup body; 4. Water pump bracket; 5. Water pump; 6. Battery assembly; 7. Water tank assembly; 8. Capsule chamber assembly; 9. Control circuit board; 10. DC interface; 11. Waterproof cap; 21. Outer cover; 22. Seal; 23. Inner cover; 24. Cover plate; 25. Decorative ring; 41. Upper bracket; 42. Lower bracket; 43. Bump; 51. Water outlet; 71. Box body; 72. Box body bracket; 73. Fastener 1; 241. Buckle; 251. Insert post. Detailed implementation mode

[0029] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] Embodiment 1

[0031] As Figure 1 , Figure 2 , Figure 3 shown, in this example, the portable coffee machine is shown by taking a common configuration on the market as an example. Specifically, it includes a housing 1 and a water tank assembly 7 and a water pump bracket 4 installed in the cavity of the housing 1. The housing is in the shape of a common cylinder. A cup lid 2 is arranged at the top barrel opening of the housing 1, and a cup body 3 is arranged at the bottom barrel opening. The cup body is used to hold coffee, and the water pump bracket 4 is used to carry the water pump 5, the battery assembly 6 and the control circuit board 9, etc. A capsule chamber assembly 8 is installed in the chamber surrounded by the cup body 3 and the housing 1 below the water pump bracket 4. The control switch and the like are arranged on the peripheral surface of the housing. This is a common coffee machine structure.

[0032] As Figure 4 , Figure 5 shown, in this example, the water tank assembly 7 includes a box body 71 and a box body bracket 72. The box body 71 is in the shape of a cylinder, and the box body bracket 72 is in the shape of a ring. The box body bracket 72 is directly sleeved and fixed at the bottom end of the box body 71. For the fixing method such as welding, etc., the bottom of the box body bracket 72 is fixed to the first end of the water pump bracket 4 through a fastener 1 73.

[0033] As Figures 2 - 4As shown in the figure, the water pump bracket 4 includes an upper bracket 41 and a lower bracket 42 that are fixedly connected. At the top surface of the upper bracket 41, a convex block 43 is integrally formed, such as a single annular convex block or multiple independent convex blocks distributed at intervals. For multiple independent convex blocks, the number of convex blocks can be selected according to requirements. For example, three convex blocks 43 are distributed in a triangular shape. The convex block 43 is located in the ring opening of the box body bracket 72 and abuts against the inner wall of the ring cavity. The first fastener 73, such as a screw, forms a through hole radially on the circumferential surface of the ring body of the box body bracket 72. A threaded hole is formed at the position of the convex block 43 corresponding to the through hole. The end of the horizontally arranged first fastener 73 passes through the through hole on the box body bracket 72 and is screwed into the threaded hole of the convex block 43. The convex block 43 and the box body bracket 72 are fixed together as one body. The relative circumferential movement between the box body 71 and the upper bracket 41 is restricted by the first fastener, forming a circumferential constraint. During use, the box body will not rotate, avoiding damage to pipelines, circuits, etc. that are docked with the box body.

[0034] Of course, the first fastener can also be selected as an insert post. The end of the insert post passes through the through hole on the box body bracket and is embedded in the convex block hole.

[0035] In this example, the capsule chamber assembly 8 is located below the lower bracket 42. The capsule chamber is composed of common structures such as a connecting seat, a powder box, a capsule seat, a puncturing needle, etc. The water pump 5 is fixed between the upper bracket 41 and the lower bracket 42, and the water pump is fixed to the lower bracket. For example, the fixing seat is fixed to the lower bracket by three screws, and the water pump is fixed to the fixing seat. In this structure, the water pump is fixed more firmly, and at the same time, it will not cause damage to other devices, making the whole machine more reliable.

[0036] The water pump 5 is inverted so that the water outlet 51 of the water pump 5 faces downward, and the water outlet 51 passes through the lower bracket 42 and is directly connected to the water inlet of the brewing seat in the capsule chamber assembly 8. For example, the water outlet is directly inserted into the water inlet of the brewing seat. The direct connection structure omits the formation of other water channels, simplifies the structure, reduces the loss of water pump pressure when the water pump outlet is directly connected to the brewing seat, improves the coffee extraction effect, and the water inlet of the water pump is communicated with the cavity of the box body.

[0037] In this example, the control circuit board 9 and the battery assembly 6 are both installed on the water pump bracket 4 in the cavity of the housing 1, and are fixed to the upper bracket and the lower bracket of the water pump bracket by means of buckles, screws, etc. There are holes formed on the circumferential surface of the housing so that the switch lights on the control circuit board extend out through the holes. The control circuit board is connected to the battery assembly, the water pump, the heating mechanism, etc.

[0038] A direct plug-in power supply type DC interface 10 is installed on the control circuit board 9. A jack is formed on the circumferential surface of the housing corresponding to the DC interface 10. It can be selected to block the jack with a waterproof cap 11. During use, the waterproof cap can be pulled out, and when in use, the direct plug-in power supply type DC interface is connected to an external power supply, etc., and power supply can be obtained without passing through the battery assembly, enabling dual-mode power-on.

[0039] In this example, the cup cover 2 is inserted and fitted at the opening (such as the water inlet) of the box body 71, and it can be directly inserted and pulled out during use. Specifically: as Figure 4 , Figure 5 shown, the cup cover 2 includes an outer cover 21, an inner cover 23, an elastic seal 22, a decorative ring 25, a cover plate 24, and a second fastener. The cover plate 24, the decorative ring 25, the outer cover 21, the seal 22, and the inner cover 23 are arranged in sequence from top to bottom. The decorative ring 25, the outer cover 21, and the inner cover 23 are fixed together by the second fastener. The second fastener is, for example, a screw. A convex column is formed on the top surface of the inner cover 23. Holes are formed at the corresponding positions of the decorative ring and the outer cover. The convex column on the inner cover passes through the seal and the outer cover. The end of the second fastener passes through the middle hole of the decorative ring and is screwed into the convex column of the inner cover to fix the decorative ring, the outer cover, the inner cover, and the seal together. The seal 22 is clamped between the inner cover 23 and the outer cover 21. The bottom diameter of the seal 22 is larger than the diameter of the inner cover 23, and the bottom diameter of the seal 22 is larger than the inner diameter at the box opening. The diameter of the inner cover 23 is smaller than the inner diameter of the box opening to facilitate insertion. After insertion, the peripheral surface of the seal abuts against the inner wall of the box cavity to improve the sealing performance and friction, and increase the resistance to external pulling.

[0040] Preferably, the diameter of the outer cover is larger than the inner diameter of the box opening of the box body, and the top diameter of the seal is larger than the inner diameter of the box opening. When inserting, the side of the top of the seal is between the outer cover and the end face of the box opening, which helps to further improve the sealing performance.

[0041] In this example, the cover plate 24 is fixed to the decorative ring 25 in a snap-fit manner. As Figure 5 , Figure 6 shown, a plurality of ventilation holes are formed on the ring body of the decorative ring 25, and a cross-shaped body is formed at the ring opening of the decorative ring. A snap-fastening member 241 is formed on the bottom surface of the cover plate 24 corresponding to the ring opening of the decorative ring 25, and is snap-fastened to the ring opening wall with the snap-fastening member. An insertion post 251 protrudes outward from the center bottom surface of the cross-shaped body. The insertion post 251 passes through the hole formed in the middle of the outer cover 21 and is inserted into the through hole I formed in the seal 22. A through hole II is formed in the inner cover corresponding to the through hole I to communicate with the cavity of the box body. The configuration of the ventilation holes on the decorative ring and the insertion of the insertion post into the through hole I facilitates the air outlet of the box body and improves safety.

[0042] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A portable coffee machine, comprising a housing (1), a water tank assembly (7) and a water pump bracket (4) arranged in a housing cavity, characterized in that: The water tank assembly (7) comprises a tank body (71) and a tank body bracket (72). The tank body bracket (72) is fixed at the bottom end of the tank body (71). The tank body bracket (72) is fixed to the head end of the water pump bracket (4) by means of a fastener 1 (73). Under the action of the fastener 1 (73), the circumferential relative movement of the tank body bracket (72) and the water pump bracket (4) is constrained.

2. The portable coffee machine according to claim 1, characterized in that: The water pump bracket (4) comprises an upper bracket (41) and a lower bracket (42) which are connected to each other. A protrusion (43) is provided at the top end surface of the upper bracket (41). The protrusion (43) is fixed to the box bracket (72) by a fastener (73).

3. The portable coffee machine according to claim 2, characterized in that: The box support (72) is annular, and is sleeved on the bottom end of the box and fixed as a whole. The protrusion (43) is located in the ring opening of the ring and abuts against the wall of the ring opening. The fastener 1 (73) is arranged horizontally, and the end of the fastener 1 (73) passes through the box support (72) and is connected to the protrusion (43).

4. The portable coffee machine according to claim 2, characterized in that: It also comprises a water pump (5) and a capsule cabin assembly (8), wherein the capsule cabin assembly (8) is located below the lower bracket (42), the water pump (5) is arranged between the upper bracket (41) and the lower bracket (42) and is fixed to the lower bracket, and the water outlet (51) of the water pump (5) is arranged downward and the water outlet (51) is directly connected to the water inlet of the brewing seat in the capsule cabin assembly (8).

5. The portable coffee machine according to claim 1, characterized in that: The fastener 1 (73) is of threaded type.

6. The portable coffee machine according to claim 1, characterized in that: A control circuit board (9) and a battery assembly (6) are arranged in the cavity of the housing (1); the control circuit board (9) is connected to the battery assembly (6) and a direct plug-in power supply type DC interface (10) is arranged on the control circuit board (9); a socket is arranged at the housing corresponding to the DC interface (10).

7. The portable coffee machine according to claim 6, characterized in that: A waterproof cap (11) is inserted and arranged at the socket.

8. The portable coffee machine according to claim 1, characterized in that: A cup cover (2) is provided at the box opening of the box body (71), and the cup cover (2) is plugged into the box opening. The cup cover (2) comprises an outer cover (21), an inner cover (23) and an elastic sealing member (22). The sealing member (22) is located between the inner cover (23) and the outer cover (21). The bottom end diameter of the sealing member (22) is larger than the diameter of the inner cover (23), and the diameter of the inner cover (23) is smaller than the inner diameter of the box opening. When the cup cover is plugged into the box opening, the circumferential surface of the bottom end of the sealing member (22) abuts against the inner wall of the box mouth.

9. The portable coffee machine according to claim 8, characterized in that: The cup cover (2) further comprises a decorative ring (25), a cover plate (24), and a second fastener. The cover plate (24), the decorative ring (25), the outer cover (21), the sealing member (22), and the inner cover (23) are arranged in sequence from top to bottom. The decorative ring (25), the outer cover (21), and the inner cover (23) are fixed as a whole by the second fastener, and the sealing member is clamped by the inner cover and the outer cover. The cover plate (24) is fixed to the decorative ring (25) in a snap-fit ​​manner.

10. The portable coffee machine according to claim 9, characterized in that: The decorative ring (25) is provided with a plurality of ventilation holes and a plug post (251) is provided at the bottom surface of the decorative ring (25); the plug post (251) passes through the outer cover (21) and is inserted into a through hole 1 formed at the sealing member (22); and a through hole 2 is provided at the inner cover (23) corresponding to the through hole 1.

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