Funnel structure of coffee machine

Abstract

The utility model discloses a funnel structure of a coffee machine, which comprises a funnel seat and a liquid outlet nozzle, a brewing cavity is arranged in the funnel seat, a mounting hole communicated with the brewing cavity is arranged at the bottom of the funnel seat, at least two groups of alignment structures are arranged between the funnel seat and the liquid outlet nozzle, and a locking piece is arranged on the funnel seat. At least two groups of alignment structures used for accurately aligning the liquid outlet nozzle and the funnel seat are arranged between the funnel seat and the liquid outlet nozzle, during installation, a positioning pin is inserted into an upper positioning hole and a lower positioning hole at the same time, so that an accurate angle is kept between the liquid outlet nozzle and the funnel seat, and then the liquid outlet nozzle is locked at the bottom of the funnel seat through a locking piece; specifically, by rotating the locking piece, the external thread on the lower portion of the locking piece is screwed with the internal thread on the liquid outlet nozzle, when coffee is brewed, coffee in the brewing cavity can flow out of the liquid outlet nozzle after passing through the liquid outlet channel, the structure is simple, and the uniformity of the installation angles of the liquid nozzle and the funnel base can be guaranteed.

Description

Technical Field

[0001] This utility model relates to a funnel structure for a coffee machine. Background Technology

[0002] The funnel structure of a coffee machine is an important component. Chinese utility model patent application number 202320929477.2 discloses a pre-infusion brewing head for a coffee extractor, in which the diversion groove is threadedly connected to the liquid outlet at the bottom of the funnel. The thread at the liquid outlet at the bottom of the funnel is integrated with the funnel. During installation, the diversion groove is installed to the bottom of the funnel by rotating it. With this design, due to factors such as the thread machining precision, it is difficult to ensure the uniformity of the installation angle between the funnel and the diversion groove after the threads between the diversion groove and the funnel are tightened.

[0003] This utility model was proposed in response to the shortcomings of the existing technology. Utility Model Content

[0004] Regarding the threaded connection at the bottom outlet of the funnel and the diversion channel in the prior art mentioned above, due to factors such as the thread machining accuracy, it is difficult to ensure the uniformity of the installation angle between the funnel and the diversion channel after the threads between the diversion channel and the funnel are tightened. The technical solution adopted by this utility model to solve its technical problem is as follows: A funnel structure for a coffee machine, comprising: a funnel seat and a dispensing nozzle connected to the bottom of the funnel seat, wherein the funnel seat is provided with a brewing chamber, and the bottom of the funnel seat is provided with a mounting hole communicating with the brewing chamber. At least two sets of alignment structures are provided between the funnel seat and the dispensing nozzle for accurately aligning the dispensing nozzle and the funnel seat. Each set of alignment structures includes: an upper positioning hole provided on the lower surface of the funnel seat, a lower positioning hole provided on the upper end face of the dispensing nozzle, and a positioning pin connecting the upper positioning hole and the lower positioning hole. The funnel seat is provided with a locking member for locking the dispensing nozzle to the bottom of the funnel seat. The locking member is connected in the mounting hole. The upper part of the locking member is provided with an annular part that contacts the funnel seat, and the lower part of the locking member is provided with an external thread. The dispensing nozzle is provided with an internal thread that is threadedly connected to the external thread. The locking member is provided with a dispensing channel communicating with the brewing chamber and the dispensing nozzle.

[0005] The coffee machine funnel structure described above has a hexagonal hole in the liquid outlet channel.

[0006] In the coffee machine funnel structure described above, a sealing ring is provided between the locking member and the mounting hole.

[0007] As described above, in a coffee machine funnel structure, the upper end of the mounting hole is provided with a stepped hole, and the annular portion is located inside the stepped hole.

[0008] The funnel structure of a coffee machine as described above has an annular portion with a guide surface that smoothly transitions between the brewing chamber and the liquid outlet channel.

[0009] As described above, the funnel structure of a coffee machine has two diversion grooves on the dispensing nozzle that communicate with the dispensing channel.

[0010] The funnel structure of a coffee machine as described above has a handle on the outer wall of the funnel seat.

[0011] In the coffee machine funnel structure described above, the upper and lower ends of the positioning pin are respectively provided with guide rounded corners.

[0012] The beneficial effects of this utility model are:

[0013] 1. The funnel structure of the coffee machine of this utility model has at least two sets of alignment structures between the funnel seat and the dispensing nozzle for accurate alignment of the dispensing nozzle and the funnel seat. During installation, the positioning pin is first inserted into the upper positioning hole and the lower positioning hole at the same time to keep the dispensing nozzle and the funnel seat at an accurate angle. Then, the dispensing nozzle is locked to the bottom of the funnel seat by the locking member. Specifically, by rotating the locking member, the external thread at the bottom of the locking member is tightened with the internal thread on the dispensing nozzle. When brewing coffee, the coffee in the brewing chamber will flow out from the dispensing nozzle after passing through the dispensing channel. It has a simple structure and can ensure the uniformity of the installation angle of the dispensing nozzle and the funnel seat.

[0014] 2. A stepped hole is provided at the upper end of the mounting hole, and the annular part is located inside the stepped hole to prevent the annular part from protruding from the brewing chamber; the annular part has a guide surface that smoothly transitions between the brewing chamber and the liquid outlet channel, so that coffee in the brewing chamber will not remain on the annular part, reducing coffee waste and making it easy to clean. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a bottom view of the present invention;

[0017] Figure 3 This is one of the exploded view diagrams of this utility model;

[0018] Figure 4 This is the second exploded view of the present invention;

[0019] Figure 5 This is a full sectional view of the present invention;

[0020] Figure 6 for Figure 5 A magnified view of part A marked in the middle. Detailed Implementation

[0021] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1 to 6 As shown, this utility model discloses a funnel structure for a coffee machine, comprising: a funnel base 1 and a dispensing nozzle 2 connected to the bottom of the funnel base 1. The funnel base 1 has a brewing chamber 101 inside, and the bottom of the funnel base 1 has a mounting hole 102 communicating with the brewing chamber 101. At least two sets of alignment structures 3 are provided between the funnel base 1 and the dispensing nozzle 2 for accurately aligning the dispensing nozzle 2 and the funnel base 1. Each set of alignment structures 3 includes: an upper positioning hole 31 provided on the lower surface of the funnel base 1 and a lower positioning hole 3 on the upper end face of the dispensing nozzle 2. 2. A positioning pin 33 is connected between the upper positioning hole 31 and the lower positioning hole 32. The funnel seat 1 is provided with a locking member 4 for locking the liquid outlet 2 at the bottom of the funnel seat 1. The locking member 4 is connected in the mounting hole 102. The upper part of the locking member 4 is provided with an annular part 41 that contacts the funnel seat 1. The lower part of the locking member 4 is provided with an external thread 42. The liquid outlet 2 is provided with an internal thread 21 that is threadedly connected to the external thread 42. The locking member 4 is provided with a liquid outlet channel 401 that connects the brewing chamber 101 and the liquid outlet 2. The funnel structure of this coffee machine features at least two alignment structures between the funnel seat and the spout for accurate alignment of the spout and the funnel seat. During installation, the positioning pin is first inserted into both the upper and lower positioning holes simultaneously to maintain an accurate angle between the spout and the funnel seat. Then, the spout is locked to the bottom of the funnel seat by a locking component. Specifically, by rotating the locking component, the external thread at the bottom of the locking component is tightened with the internal thread on the spout. During coffee brewing, the coffee in the brewing chamber flows out from the spout after passing through the dispensing channel. This design is simple in structure and ensures the uniformity of the installation angle between the spout and the funnel seat.

[0023] To facilitate the rotation of the locking component, a hexagonal hole is provided in the liquid outlet channel 401. The locking component can be driven to rotate by inserting an Allen wrench into the hexagonal hole, which is convenient and reliable.

[0024] To prevent leakage, a sealing ring 43 is provided between the locking element 4 and the mounting hole 102.

[0025] In this embodiment, to prevent the annular portion 41 from protruding from the brewing chamber, a stepped hole 103 is provided at the upper end of the mounting hole 102, and the annular portion 41 is located within the stepped hole 103. The annular portion 41 has a guide surface 411 that smoothly transitions between the brewing chamber 101 and the liquid outlet channel 401. With the above design, coffee residue in the brewing chamber will not remain on the annular portion, reducing coffee waste and facilitating cleaning.

[0026] In this embodiment, the liquid outlet 2 is provided with two diversion grooves 201 that communicate with the liquid outlet channel 401.

[0027] In this embodiment, the outer wall of the funnel seat 1 is provided with a handle 5, which facilitates the installation of the funnel structure onto the coffee machine.

[0028] In this embodiment, the upper and lower ends of the positioning pin 33 are respectively provided with guide rounded corners to facilitate the insertion of the positioning pin 33 into the upper positioning hole and the lower positioning hole.

[0029] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A funnel structure for a coffee machine, comprising: The funnel base (1) and the outlet nozzle (2) connected to the bottom of the funnel base (1) are characterized in that the funnel base (1) is provided with a brewing chamber (101), the bottom of the funnel base (1) is provided with an installation hole (102) communicating with the brewing chamber (101), and at least two sets of alignment structures (3) are provided between the funnel base (1) and the outlet nozzle (2) for accurately aligning the outlet nozzle (2) and the funnel base (1). Each set of alignment structures (3) includes: an upper positioning hole (31) provided on the lower surface of the funnel base (1), a lower positioning hole (32) provided on the upper end face of the outlet nozzle (2), and a mounting hole (102) connected to the upper positioning hole (31). 1) A positioning pin (33) between the lower positioning hole (32) and the funnel seat (1) is provided with a locking member (4) for locking the liquid outlet (2) at the bottom of the funnel seat (1). The locking member (4) is connected in the mounting hole (102). The upper part of the locking member (4) is provided with a ring part (41) that contacts the funnel seat (1). The lower part of the locking member (4) is provided with an external thread (42). The liquid outlet (2) is provided with an internal thread (21) that is threadedly connected to the external thread (42). The locking member (4) is provided with a liquid outlet channel (401) that connects the brewing chamber (101) and the liquid outlet (2).

2. The funnel structure of a coffee machine according to claim 1, characterized in that, The liquid outlet channel (401) is provided with a hexagonal hole.

3. The funnel structure of a coffee machine according to claim 1, characterized in that, A sealing ring (43) is provided between the locking member (4) and the mounting hole (102).

4. The funnel structure of a coffee machine according to claim 1, characterized in that, The upper end of the mounting hole (102) is provided with a stepped hole (103), and the annular part (41) is located inside the stepped hole (103).

5. The funnel structure of a coffee machine according to claim 4, characterized in that, The annular portion (41) is provided with a guide surface (411) that smoothly transitions between the cooking chamber (101) and the liquid outlet channel (401).

6. The funnel structure of a coffee machine according to claim 1, characterized in that, The liquid outlet (2) is provided with two diversion grooves (201) that communicate with the liquid outlet channel (401).

7. The funnel structure of a coffee machine according to claim 1, characterized in that, The funnel seat (1) has a handle (5) on its outer side wall.

8. The funnel structure of a coffee machine according to claim 1, characterized in that, The positioning pin (33) has guide rounded corners at both the upper and lower ends.

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