Joint structure of coffee machine and coffee machine

By designing the structure of the female connector, male connector, and connector nut, the problem of inconvenient assembly caused by rotational interference in the small coffee machine boiler connector was solved, realizing convenient installation and compact fixation of the solenoid valve and simplifying the assembly process.

CN223958668UActive Publication Date: 2026-03-03GUANGDONG SHUNDE FENGCUI INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

The existing boiler joint structure of small coffee machines is inconvenient to assemble due to rotational interference, especially the installation of the solenoid valve assembly, which is difficult due to the large number and compact size of the parts, affecting the assembly position.

Method used

Design a structure including a female connector, a male connector, and a connector nut. The male connector is rotated to connect with the pot body by a locking tool to avoid rotational interference. The solenoid valve is securely installed by utilizing the cooperation of the limiting part, boss, and rib.

Benefits of technology

This technology enables convenient installation of solenoid valves, avoids rotational interference, ensures compact and fixed parts, simplifies the assembly process, and improves installation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The joint structure comprises a female joint, a male joint and a joint nut, the female joint and the male joint are mutually inserted, the joint nut is fixed on the female joint, and the joint nut is vertically positioned and sleeved on the male joint so as to connect the female joint and the male joint. According to the connector structure of the coffee machine, the female connector, the male connector and the connector nut are arranged, the connector nut is fixed to the female connector, and the male connector is sleeved with the connector nut in an up-down positioning mode so as to be connected with the female connector and the male connector; when the electromagnetic valve is fixed to the cooker body, the male connector can be rotationally installed on the cooker body through a locking tool, then the electromagnetic valve is inserted into the male connector through the female connector, finally, the electromagnetic valve is fixed to the cooker body by rotating the connector nut, the electromagnetic valve does not need to be rotated in the whole installation process, and therefore rotation interference in the locking process is avoided; and the electromagnetic valve does not need to be assembled to other positions through pipeline connection, so that the electromagnetic valve is more convenient to mount.
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Description

Technical Field

[0001] This utility model relates to the field of coffee machine technology, and in particular to a connector structure for a coffee machine and a coffee machine. Background Technology

[0002] Boilers used in small coffee machines are small in size and compact in assembly, but have many types of joints and parts, and are basically fixed by threaded connections. In this case, larger parts are affected by the rotational interference when locking, which affects the assembly position. The parts need to be assembled to other positions through pipe connections, making the installation of parts very inconvenient, such as the solenoid valve assembly on the steam cooker.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this utility model is to provide a coffee machine connector structure and coffee machine that is simple in structure, easy to install, compact in assembly, can prevent rotational interference, and is highly practical, so as to overcome the shortcomings of the prior art.

[0005] A connector structure for a coffee machine designed for this purpose is characterized by comprising a female connector, a male connector, and a connector nut, wherein the female connector and the male connector are inserted into each other, the connector nut is fixed on the female connector, and the connector nut is positioned and fitted on the male connector to connect the female connector and the male connector.

[0006] The male connector has a boss on the outside and a rib on the inside of the connector nut, with the rib pressing against the boss.

[0007] The lower end of the female connector is provided with a limiting part, which abuts against the boss, thereby causing the connector nut to abut against the boss through the female connector.

[0008] It also includes a positioning retaining ring. The outer side of the male connector is provided with an annular first retaining groove, and the positioning retaining ring is engaged in the first retaining groove. The positioning retaining ring is located on the lower side of the connector nut.

[0009] The outer side of the male connector is provided with a second slot for engaging with a locking tool, so that the male connector can be rotated by the locking tool.

[0010] The female connector has an assembly hole at its lower part and the male connector has an insertion part at its upper part. The insertion part and the assembly hole are inserted into each other, and a first sealing ring is provided between the insertion part and the side wall of the assembly hole.

[0011] A first threaded portion is provided between the lower part of the female connector and the connector nut, and the connector nut is fixed to the female connector through the first threaded portion.

[0012] A coffee machine designed for this purpose includes a pot body and a solenoid valve, characterized in that it also includes a connector structure of the coffee machine, wherein a female connector is fixed to the solenoid valve and a male connector is fixed to the pot body, thereby fixing the solenoid valve to the pot body.

[0013] The upper end of the female connector is provided with a first mounting head, the solenoid valve is provided with a first mounting hole, a second thread is provided between the first mounting head and the first mounting hole, the first mounting head is fixed on the first mounting hole through the second thread, and a second sealing ring is provided between the first mounting head and the side wall of the first mounting hole.

[0014] The lower end of the male connector is provided with a second mounting head, the pot body is provided with a second mounting hole, a third threaded part is provided between the second mounting head and the second mounting hole, the second mounting head is fixed on the second mounting hole through the third threaded part, and a third sealing ring is provided between the second mounting head and the side wall of the second mounting hole.

[0015] The connector structure of this coffee machine features a female connector, a male connector, and a connector nut. The connector nut is fixed to the female connector and positioned on the male connector to connect them. This structure allows for easy installation of components such as solenoid valves. The male connector can be rotated and installed onto the pot body using a locking tool. Then, the solenoid valve is inserted into the male connector via the female connector. Finally, rotating the connector nut secures the solenoid valve to the pot body. The entire installation process does not require rotating the solenoid valve, thus eliminating rotational interference during locking and eliminating the need to connect the solenoid valve to other positions via pipes. This makes the installation of the solenoid valve more convenient and allows for a compact and secure assembly. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the connector structure in one embodiment of the present invention.

[0017] Figure 2 This is an exploded structural diagram of the connector structure in one embodiment of the present invention.

[0018] Figure 3 This is an exploded structural diagram of the pot body and the solenoid valve in one embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the assembly structure of the pot body and the solenoid valve in one embodiment of the present invention.

[0020] Figure 5 This is a cross-sectional view of the assembly structure of the pot body and the solenoid valve in one embodiment of the present invention.

[0021] Figure 6 This is an exploded structural diagram of the locking tool, male connector, and connector nut in one embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the assembly structure of the locking tool, male connector, connector nut and pot body in one embodiment of the present invention.

[0023] Figure 8 This is a cross-sectional view of the assembly structure of the locking tool, male connector, connector nut and pot body in one embodiment of the present invention.

[0024] Figure 9 This is a schematic diagram of the overall structure of the female connector in one embodiment of the present invention.

[0025] Figure 10 This is a schematic diagram of the overall structure of the connector nut in one embodiment of the present invention.

[0026] Figure 11 This is a schematic diagram of the overall structure of the male connector in one embodiment of the present invention.

[0027] Figure 12 This is a schematic diagram of the overall structure of the solenoid valve in one embodiment of the present invention. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] See Figures 1-12 The connector structure of this coffee machine includes a female connector 1, a male connector 2, and a connector nut 3. The female connector 1 and the male connector 2 are inserted into each other. The connector nut 3 is fixed on the female connector 1 and is positioned and fitted on the male connector 2 to connect the female connector 1 and the male connector 2.

[0030] The male connector 2 has a boss 4 on its outer side, and the connector nut 3 has a rib 5 on its inner side, with the rib 5 pressing upward against the boss 4.

[0031] The lower end of the female connector 1 is provided with a limiting part 6, which abuts against the boss 4, thereby causing the connector nut 3 to abut against the boss 4 through the female connector 1, so that the connector nut 3 is positioned vertically on the male connector 2; the boss 4 is respectively provided on both sides of the male connector 2.

[0032] It also includes a positioning retaining ring 8. The outer side of the male connector 2 is provided with an annular first retaining groove 7. The positioning retaining ring 8 is engaged in the first retaining groove 7. The positioning retaining ring 8 is located on the lower side of the connector nut 3. The positioning retaining ring 8 can prevent the connector nut 3 from falling downward.

[0033] The outer side of the male connector 2 is provided with a second slot 10 for cooperating with the locking tool 9, so that the male connector 2 can be rotated by the locking tool 9; specifically, the locking tool 9 is provided with a retaining rib 22, and the locking tool 9 can be inserted into the second slot 10 through the retaining rib 22. Then, by rotating the locking tool 9, the male connector 2 will rotate with the locking tool 9, and thus the male connector 2 can be rotated and assembled onto the pot body 14 by the locking tool 9; the second slot 10 is respectively provided between the two bosses 4.

[0034] The lower part of the female connector 1 is provided with an assembly hole 11, and the upper part of the male connector 2 is provided with an insertion part 12. The insertion part 12 and the assembly hole 11 are inserted into each other. A first sealing ring 13 is provided between the side wall of the insertion part 12 and the assembly hole 11. The first sealing ring 13 is fitted onto the insertion part 12.

[0035] A first threaded portion is provided between the lower part of the female connector 1 and the connector nut 3, and the connector nut 3 is fixed to the female connector 1 through the first threaded portion; the first threaded portion includes a first external thread provided on the outer side of the lower part of the female connector 1 and a first internal thread provided on the inner side of the connector nut 3, and the first external thread and the first internal thread are threadedly engaged.

[0036] This coffee machine includes a pot body 14, a solenoid valve 15, and a connector structure. The female connector 1 is fixed to the solenoid valve 15, and the male connector 2 is fixed to the pot body 14, thereby fixing the solenoid valve 15 to the top of the pot body 14.

[0037] The upper end of the female connector 1 is provided with a first mounting head 16, and the solenoid valve 15 is provided with a first mounting hole 17. A second threaded portion is provided between the first mounting head 16 and the first mounting hole 17. The first mounting head 16 is fixed to the first mounting hole 17 through the second threaded portion, thereby fixing the female connector 1 to the solenoid valve 15. A second sealing ring 18 is provided between the side wall of the first mounting head 16 and the first mounting hole 17. A first sealing groove 23 is provided on the first mounting head 16, and the second sealing ring 18 is fitted onto the first sealing groove 23. The second threaded portion includes a second external thread provided on the first mounting head 16 and a second internal thread provided on the first mounting hole 17. The second external thread and the second internal thread are threadedly engaged.

[0038] The lower end of the male connector 2 is provided with a second mounting head 19, and the pot body 14 is provided with a second mounting hole 20. A third threaded part is provided between the second mounting head 19 and the second mounting hole 20. The second mounting head 19 is fixed to the second mounting hole 20 through the third threaded part, thereby fixing the male connector 2 to the pot body 14. A third sealing ring 21 is provided between the second mounting head 19 and the side wall of the second mounting hole 20. A second sealing groove 24 is provided on the second mounting head 19. The third threaded part includes a third external thread provided on the second mounting head 19 and a third internal thread provided on the second mounting hole 20. The third external thread and the third internal thread are threadedly engaged.

[0039] When installing the solenoid valve 15, first install the second sealing ring 18 on the female connector 1, then install the female connector 1 on the solenoid valve 15, then put the connector nut 3 on the male connector 2, then install the positioning ring 8, the third sealing ring 21 and the first sealing ring 13 on the male connector 2, then install the male connector 2 on the pot body 14 using the locking tool 9, then insert the female connector 1 and the male connector 2 into each other, and then rotate the connector nut 3 so that the boss 4 of the male connector 2 abuts against the limiting part 6 of the female connector 1, thus completing the fixed installation of the solenoid valve 15; in addition, the solenoid valve 15 can be adjusted to a suitable angle before tightening the connector nut 3 to prevent the solenoid valve 15 from interfering with other parts.

[0040] The solenoid valve 15 is equipped with a pipe connector 25 for connecting to the pipeline. The solenoid valve 15 includes an exhaust solenoid valve 26 and a water inlet solenoid valve 27. The pot body 14 is a steam pot.

[0041] The top of the pot body 14 is also equipped with an exhaust valve 28, a protection valve 29, a water level probe 30, and a temperature probe 31.

[0042] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A connector structure for a coffee machine, characterized in that: It includes a female connector (1), a male connector (2) and a connector nut (3). The female connector (1) and the male connector (2) are inserted into each other. The connector nut (3) is fixed on the female connector (1). The connector nut (3) is positioned and fitted on the male connector (2) to connect the female connector (1) and the male connector (2).

2. The connector structure of the coffee machine according to claim 1, characterized in that: The male connector (2) has a boss (4) on its outer side and a rib (5) on its inner side. The rib (5) rests against the boss (4) upwards.

3. The connector structure of the coffee machine according to claim 2, characterized in that: The lower end of the female connector (1) is provided with a limiting part (6), which abuts against the boss (4) downwards, thereby causing the connector nut (3) to abut against the boss (4) downwards through the female connector (1).

4. The connector structure of the coffee machine according to claim 3, characterized in that: It also includes a positioning retaining ring (8), and the outer side of the male connector (2) is provided with an annular first retaining groove (7). The positioning retaining ring (8) is engaged in the first retaining groove (7) and is located on the lower side of the connector nut (3).

5. The connector structure of the coffee machine according to claim 1, characterized in that: The male connector (2) has a second slot (10) on its outer side for engaging with the locking tool (9) so that the male connector (2) can be rotated by the locking tool (9).

6. The connector structure of the coffee machine according to claim 1, characterized in that: The lower part of the female connector (1) is provided with an assembly hole (11), and the upper part of the male connector (2) is provided with an insertion part (12). The insertion part (12) and the assembly hole (11) are inserted into each other, and a first sealing ring (13) is provided between the side wall of the insertion part (12) and the assembly hole (11).

7. The connector structure of the coffee machine according to claim 1, characterized in that: A first threaded portion is provided between the lower part of the female connector (1) and the connector nut (3), and the connector nut (3) is fixed to the female connector (1) through the first threaded portion.

8. A coffee machine, comprising a pot body (14) and a solenoid valve (15), characterized in that: It also includes a connector structure for a coffee machine as described in any one of claims 1-7, wherein the female connector (1) is fixed to the solenoid valve (15) and the male connector (2) is fixed to the pot body (14), thereby fixing the solenoid valve (15) to the pot body (14).

9. The coffee machine according to claim 8, characterized in that: The upper end of the female connector (1) is provided with a first mounting head (16), the solenoid valve (15) is provided with a first mounting hole (17), a second thread is provided between the first mounting head (16) and the first mounting hole (17), the first mounting head (16) is fixed on the first mounting hole (17) through the second thread, and a second sealing ring (18) is provided between the first mounting head (16) and the side wall of the first mounting hole (17).

10. The coffee machine according to claim 8, characterized in that: The lower end of the male connector (2) is provided with a second mounting head (19), the pot body (14) is provided with a second mounting hole (20), a third threaded part is provided between the second mounting head (19) and the second mounting hole (20), the second mounting head (19) is fixed on the second mounting hole (20) through the third threaded part, and a third sealing ring (21) is provided between the second mounting head (19) and the side wall of the second mounting hole (20).