Water level detection assembly and coffee machine

Abstract

The utility model relates to a kind of water level detection assembly and coffee machine, belong to coffee machine field, water level detection assembly includes: support seat component;Water tank support, the water tank support is set on the support seat component, the water tank support is equipped with accommodating cavity;Water tank component, the water tank component is set on the water tank support and is located at the accommodating cavity, the water tank component is equipped with water storage cavity;Water level detection circuit board, the water level detection circuit board with the support seat component is resisted, the water level detection circuit board with the water tank support is resisted, the water level detection circuit board is clamped between the support seat component and the water tank support, and the water level detection circuit board is used to detect the water level of the water storage cavity.The water level detection assembly disclosed in the application is clamped between the support seat component and the water tank support by the water level detection circuit board, and the water level detection circuit board can be stably fixed.

Description

Technical Field

[0001] This utility model relates to the field of coffee machines, and in particular to a water level detection component and a coffee machine. Background Technology

[0002] Coffee machines typically require water level detection components, such as circuit boards, to monitor the water level in the tank in real time. However, traditional coffee machine water level detection components are usually fixed with bolts or other connectors. This assembly method introduces more parts, increases material costs, and also makes subsequent maintenance or replacement inconvenient. Utility Model Content

[0003] Therefore, it is necessary to address the issue that the traditional method of fixing the water level detection component in the water tank of a coffee machine generally uses bolts and other connecting parts, which leads to the introduction of more components and increases material costs. In this regard, a water level detection component and a coffee machine should be provided.

[0004] A water level detection component includes: a support base assembly; a water tank support member disposed on the support base assembly and having a receiving cavity; a water tank assembly disposed on the water tank support member and located at the receiving cavity, and having a water storage cavity; and a water level detection circuit board abutting against the support base assembly and the water tank support member, the water level detection circuit board being sandwiched between the support base assembly and the water tank support member, and the water level detection circuit board being used to detect the water level in the water storage cavity.

[0005] The first aspect of this application discloses a water level detection component. A water level detection circuit board is positioned at the water tank support. It utilizes the principle of capacitance change caused by the difference in dielectric constants between water and air to determine whether there is water at a specific location in the water tank component, thereby detecting the water level in the storage chamber. The water level detection circuit board is stably fixed by being sandwiched between the support assembly and the water tank support. Specifically, during assembly, the water level detection circuit board is first adhered to the water tank support using double-sided adhesive. Then, the water tank support and support assembly are assembled. After assembly, the water level detection circuit board is automatically fixed, reducing assembly complexity and improving assembly efficiency. Since the water tank support and support assembly are essential components of the coffee machine and also serve to fix other functional components, using these essential components to fix the water level detection circuit board saves unnecessary parts such as bolts, reducing material costs and assembly complexity, and facilitating subsequent maintenance.

[0006] In one embodiment, the water tank support is provided with a groove, and the two ends of the water level detection circuit board along the first length direction L1 respectively abut against the groove walls on opposite sides. By abutting the two ends of the water level detection circuit board against the groove walls on opposite sides, the degree of freedom of movement of the water level detection circuit board in its length direction is constrained and limited, thereby achieving precise positioning and effective fixation of the water level detection circuit board.

[0007] In one embodiment, a first limiting portion is formed on the support assembly, and the two opposite sides of the water level detection circuit board along the height direction H abut against the groove wall and the first limiting portion, respectively. Through the synergistic effect of the first limiting portion and the groove, the water level detection circuit board is constrained and limited in the height direction, effectively preventing displacement or loosening of the circuit board and improving the reliability of the structure.

[0008] In one embodiment, the groove is located on the side of the water tank support. By positioning the groove on the side of the water tank support, the water level of the water tank assembly can be accurately detected, achieving an efficient, non-contact water level detection function.

[0009] In one embodiment, a second limiting portion is formed on the support assembly, and a third limiting portion is formed on the water tank support. The water level detection circuit board abuts against the second and third limiting portions on opposite sides along the first width direction W1, respectively. Through the combined action of the second and third limiting portions, the water level detection circuit board is securely fixed in a preset installation position, restricting the degree of freedom in the width direction of the circuit board. Combined with the above technical features, the length, width, and height of the water level detection circuit board can be restricted respectively, ensuring stable installation without the need for additional bolts or other connecting parts. This is significant for reducing material costs and facilitating maintenance.

[0010] In one embodiment, the water tank assembly includes a water tank body, a cover assembly, and a connecting assembly. The water tank body is mounted on the water tank support and located at the receiving cavity. The water tank body has an opening and a water storage cavity, with the opening communicating with the water storage cavity. The cover assembly is mounted on the water tank body and covers the opening. The connecting assembly is rotatably connected to both the water tank body and the cover assembly. By rotatably connecting the connecting assembly to both the water tank body and the cover assembly, the cover assembly can rotate flexibly around a specific axis, thus achieving a smooth switching between its opening and closing functions. This design ensures that the cover assembly forms a reliable seal with the water tank body when closed, preventing liquid leakage; simultaneously, it can be easily opened with a simple rotation when water needs to be added or cleaned, improving operational convenience and user experience.

[0011] In one embodiment, the connecting assembly includes a first connecting portion and a second connecting portion. The first connecting portion is rotatably connected to the water tank body, and the second connecting portion is disposed on the first connecting portion and rotatably connected to the cover assembly. Because the first connecting portion is rotatably connected to the water tank body and the second connecting portion is rotatably connected to the cover assembly, the cover assembly can be rotated around the movable connection between the cover assembly and the water tank body to fully open the cover assembly. This design allows users to add water directly to the water storage chamber without lifting the water tank assembly, making operation simpler and more convenient.

[0012] In one embodiment, the two opposite ends of the first connecting portion along the second length direction L2 are rotatably connected to the opposite sides of the water tank body. This rotatable connection of the two opposite ends of the first connecting portion along the second length direction L2 to the opposite sides of the water tank body enhances the rigidity and stability of the rotatable connection.

[0013] In one embodiment, the two opposite ends of the second connecting portion along the second length direction L2 are rotatably connected to the opposite sides of the cover assembly. This rotatable connection between the two opposite ends of the second connecting portion along the second length direction L2 and the opposite sides of the cover assembly enhances the rigidity and stability of the rotatable connection.

[0014] In one embodiment, the second connecting portion is inclined relative to the first connecting portion. This inclination ensures a stable rotatable connection between the connecting assembly and the water tank body and the cover assembly, guaranteeing that the cover assembly can be fully opened and improving the convenience for users when adding water.

[0015] In one embodiment, the water tank body is provided with a first limiting hole, and the first connecting part is rotatably engaged with the first limiting hole. The distance between the first limiting hole and the center of the water tank body along the second width direction W2 is a1, where a1 is greater than 0. The cover assembly is provided with a second limiting hole, and the second connecting part is rotatably engaged with the second limiting hole. The distance between the second limiting hole and the center of the cover assembly along the second width direction W2 is a2, where a2 is greater than 0. By offsetting the first and second limiting holes from the center, the opening area can be increased, preferably allowing the opening to be fully opened. This design ensures that the user can add water without removing the water tank assembly, making water addition simpler and more convenient.

[0016] In one embodiment, the cover assembly includes a cover body, a flange structure, and a limiting structure. The cover body is disposed on the water tank body and covers the opening. The cover body is rotatable relative to the water tank body. The flange structure is disposed on the cover body, and the limiting structure is disposed on the cover body, with the limiting structure and the flange structure located on the same side of the cover body. The cover body is rotatable relative to the water tank body by at least a first angle and a second angle. When the cover body rotates by the first angle, the limiting structure abuts against the connecting component. When the cover body rotates by the second angle, the limiting structure separates from the connecting component. The rotatability of the cover body relative to the water tank body allows the user to grasp the flange structure and remove the entire water tank assembly for adding water, facilitating the water filling operation. The limiting structure's abutment against the connecting component ensures the overall stability of the cover assembly, facilitating the removal of the water tank assembly. Therefore, this design allows for both removing the water tank assembly for adding water and adding water directly without removing the water tank assembly, allowing users to choose according to their needs. For example, when adding a large amount of water, the water tank assembly can be removed, while when adding a small amount of water, the water tank assembly can be added directly without removing it, making the operation more flexible.

[0017] A coffee machine includes: the water level detection component described above, the water level detection component having a first mounting cavity and a second mounting cavity; a grinding component, the grinding component being disposed on the water level detection component and located in the first mounting cavity; and a brewing component, the brewing component being disposed on the water level detection component and located in the second mounting cavity.

[0018] The second aspect of this application discloses a coffee machine in which a grinding component and a brewing component can be installed at least simultaneously by setting a water level detection component. This ensures that the components used to fix the water level detection circuit board are all necessary components, reduces the number of components such as connectors used to fix the water level detection circuit board, reduces assembly complexity, and improves the reliability of the water level detection circuit board. Attached Figure Description

[0019] Figure 1 The first perspective view of the water level detection component;

[0020] Figure 2 This is a cross-sectional view of the water level detection component;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is the first exploded view of the water level detection component;

[0023] Figure 5 for Figure 4 Enlarged view at point B in the middle;

[0024] Figure 6 This is the second exploded view of the water level detection component;

[0025] Figure 7 This is a 3D view of the water tank assembly;

[0026] Figure 8 This is a cross-sectional view of the water tank assembly;

[0027] Figure 9 for Figure 8 Enlarged view at point C;

[0028] Figure 10 This is an exploded view of the water tank assembly.

[0029] Figure 11 This is a sectional view of the exploded view of the water tank assembly;

[0030] Figure 12 A 3D view of the connecting components;

[0031] Figure 13 This is a three-dimensional view of the cover assembly;

[0032] Figure 14 This is a 3D view of the water tank itself.

[0033] Figure 15 A 3D view of the water tank support components;

[0034] Figure 16 for Figure 15 Enlarged view at point D;

[0035] Figure 17 A perspective view of the support assembly;

[0036] Figure 18 for Figure 17 Enlarged view at point E in the middle;

[0037] Figure 19 A 3D view of the water level detection circuit board;

[0038] Figure 20 This is an exploded view of a coffee machine.

[0039] The correspondence between the reference numerals and the component names is as follows:

[0040] 1. Support base assembly; 11. First limiting part; 12. Second limiting part;

[0041] 2. Water tank support component; 21. Third limiting part; 201. Receiving cavity; 202. Groove.

[0042] 3. Water tank assembly, 31. Water tank body, 32. Cover assembly, 321. Cover body, 322. Flanged structure, 323. Limiting structure, 33. Connecting assembly, 331. First connecting part, 332. Second connecting part, 301. Water storage chamber, 302. Opening, 303. First limiting hole, 304. Second limiting hole.

[0043] 4. Water level detection circuit board;

[0044] 100 water level detection components;

[0045] 200 coffee grinder components;

[0046] 300 brewing unit. Detailed Implementation

[0047] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0048] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0049] Example 1

[0050] like Figure 1-19 As shown, this embodiment discloses a water level detection component, including: a support base assembly 1; a water tank support 2, the water tank support 2 being disposed on the support base assembly 1, the water tank support 2 having a receiving cavity 201; a water tank assembly 3, the water tank assembly 3 being disposed on the water tank support 2 and located at the receiving cavity 201, the water tank assembly 3 having a water storage cavity 301; and a water level detection circuit board 4, the water level detection circuit board 4 abutting against the support base assembly 1 and the water tank support 2, the water level detection circuit board 4 being sandwiched between the support base assembly 1 and the water tank support 2, the water level detection circuit board 4 being used to detect the water level in the water storage cavity 301.

[0051] The first aspect of this application discloses a water level detection component. A water level detection circuit board 4 is positioned at the water tank support 2. It utilizes the principle of capacitance change caused by the difference in dielectric constants between water and air to determine whether there is water at a specific location in the water tank assembly 3, thereby detecting the water level in the water storage chamber 301. The water level detection circuit board 4 is stably fixed by being sandwiched between the support base assembly 1 and the water tank support 2. Specifically, during assembly, the water level detection circuit board 4 is first adhered to the water tank support 2 using double-sided adhesive. Then, the water tank support 2 is assembled with the support base assembly 1. After assembly, the water level detection circuit board 4 is automatically fixed, reducing assembly complexity and improving assembly efficiency. Since both the water tank support 2 and the support base assembly 1 are essential components of the coffee machine and also serve to fix other functional components, using these essential components to fix the water level detection circuit board 4 saves unnecessary parts such as bolts and other connectors, reducing material costs and assembly complexity, and facilitating subsequent maintenance.

[0052] like Figure 4-5 15-16 and Figure 19 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the water tank support 2 is provided with a groove 202, and the two ends of the water level detection circuit board 4 along the first length direction L1 respectively abut against the groove walls on opposite sides of the groove 202. By abutting the two ends of the water level detection circuit board 4 against the groove walls on opposite sides of the groove 202, the degree of freedom of movement of the water level detection circuit board 4 in its length direction is constrained and limited, thereby achieving precise positioning and effective fixation of the water level detection circuit board 4.

[0053] like Figure 2-3 and Figure 19 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a first limiting part 11 is formed on the support assembly 1, and the two opposite sides of the water level detection circuit board 4 along the height direction H abut against the groove wall of the groove 202 and the first limiting part 11, respectively. Through the synergistic effect of the first limiting part 11 and the groove 202, the water level detection circuit board 4 can be constrained and limited in the height direction, effectively preventing displacement or loosening of the water level detection circuit board 4 in the height direction, and improving the reliability of the structure.

[0054] like Figure 1 and Figure 15 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the groove 202 is located on the side of the water tank support 2. By positioning the groove 202 on the side of the water tank support 2, the water level of the water tank assembly 3 can be accurately detected, achieving a highly efficient and non-contact water level detection function.

[0055] like Figure 2-3 and Figure 19 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a second limiting part 12 is formed on the support assembly 1, a third limiting part 21 is formed on the water tank support 2, and the water level detection circuit board 4 abuts against the second limiting part 12 and the third limiting part 21 on opposite sides along the first width direction W1, respectively. Through the combined action of the second limiting part 12 and the third limiting part 21, the water level detection circuit board 4 is securely fixed in a preset installation position, restricting the degree of freedom in the width direction of the water level detection circuit board 4. Combined with the above technical features, the degree of freedom in the length, width, and height of the water level detection circuit board 4 can be restricted respectively, ensuring stable installation of the water level detection circuit board 4. This can be accomplished without additional bolts or other connecting parts, which is of positive significance for reducing material costs and facilitating maintenance.

[0056] like Figure 7-11 As shown, in addition to the features of the above embodiments, this embodiment further defines the following: the water tank assembly 3 includes a water tank body 31, a cover assembly 32, and a connecting assembly 33. The water tank body 31 is disposed on the water tank support 2 and located at the receiving cavity 201. The water tank body 31 has an opening 302 and a water storage cavity 301, and the opening 302 communicates with the water storage cavity 301. The cover assembly 32 is disposed on the water tank body 31 and covers the opening 302. The connecting assembly 33 is rotatably connected to the water tank body 31 and the cover assembly 32. By rotatably connecting the connecting assembly 33 to both the water tank body 31 and the cover assembly 32, the cover assembly 32 can rotate flexibly around a specific axis, thereby achieving a smooth switching between its opening and closing functions. This design ensures that the cover assembly 32 forms a reliable seal with the water tank body 31 when closed, preventing liquid leakage; at the same time, it can be easily opened with a simple rotation when water needs to be added or cleaned, improving the convenience of operation and user experience.

[0057] like Figure 9-12 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the connecting component 33 includes a first connecting part 331 and a second connecting part 332. The first connecting part 331 is rotatably connected to the water tank body 31, and the second connecting part 332 is disposed on the first connecting part 331 and rotatably connected to the cover assembly 32. Because the first connecting part 331 is rotatably connected to the water tank body 31 and the second connecting part 332 is rotatably connected to the cover assembly 32, when opening the cover assembly 32, the cover assembly 32 can be rotated around the movable connection between the cover assembly 32 and the water tank body 31, thus fully opening the cover assembly 32. This design allows users to add water directly to the water storage chamber 301 without lifting the water tank assembly 3, making the operation simpler and more convenient.

[0058] like Figure 7-13 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the two ends of the first connecting portion 331, which are opposite to each other along the second length direction L2, are respectively rotatably connected to the two opposite sides of the water tank body 31. By rotatably connecting the two ends of the first connecting portion 331, which are opposite to each other along the second length direction L2, to the two opposite sides of the water tank body 31, the rigidity and stability of the rotatable connection are enhanced.

[0059] like Figure 7-13 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the two ends of the second connecting portion 332, which are opposite to each other along the second length direction L2, are respectively rotatably connected to the two opposite sides of the cover assembly 32. By rotatably connecting the two ends of the second connecting portion 332, which are opposite to each other along the second length direction L2, to the two opposite sides of the cover assembly 32, the rigidity and stability of the rotatable connection are enhanced.

[0060] like Figure 8-12 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the second connecting portion 332 is inclined relative to the first connecting portion 331. By inclining the second connecting portion 332 relative to the first connecting portion 331, it is ensured that the connecting assembly 33 can be stably rotated with the water tank body 31 and the cover assembly 32, ensuring that the cover assembly 32 can be fully opened, thus improving the convenience for users when adding water.

[0061] like Figure 8 , Figure 10-11 and Figure 13-14 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the water tank body 31 is provided with a first limiting hole 303, the first connecting part 331 is rotatably engaged with the first limiting hole 303, and the distance between the first limiting hole 303 and the center of the water tank body 31 along the second width direction W2 is a1, where a1 is greater than 0; the cover assembly 32 is provided with a second limiting hole 304, the second connecting part 332 is rotatably engaged with the second limiting hole 304, and the distance between the second limiting hole 304 and the center of the cover assembly 32 along the second width direction W2 is a2, where a2 is greater than 0. By offsetting the first limiting hole 303 and the second limiting hole 304 from the center, the opening area of ​​the opening 302 can be increased; preferably, the opening 302 can be fully opened. This design ensures that the user can add water without removing the water tank assembly 3, making water addition simpler and more convenient.

[0062] like Figure 8-11 and Figure 13As shown, in addition to the features of the above embodiments, this embodiment further defines that: the cover assembly 32 includes a cover body 321, a flange structure 322, and a limiting structure 323. The cover body 321 is disposed on the water tank body 31 and covers the opening 302. The cover body 321 is rotatable relative to the water tank body 31. The flange structure 322 is disposed on the cover body 321. The limiting structure 323 is disposed on the cover body 321 and the limiting structure 323 and the flange structure 322 are located on the same side of the cover body 321. The cover body 321 is rotatable relative to the water tank body 31 by at least a first angle and a second angle. When the cover body 321 rotates by the first angle, the limiting structure 323 abuts against the connecting assembly 33. When the cover body 321 rotates by the second angle, the limiting structure 323 separates from the connecting assembly 33. The cover body 321 can rotate relative to the water tank body 31, allowing the user to grasp the flange structure 322 to remove the water tank assembly 3 as a whole for adding water, facilitating the water filling operation. The limiting structure 323 abuts against the connecting component 33, ensuring the overall stability of the cover assembly 32 and facilitating the removal of the water tank assembly 3. Therefore, this design allows for both removing the water tank assembly 3 for adding water and adding water directly without removing it, allowing for flexibility depending on usage needs. For example, removing the water tank assembly 3 is sufficient for adding large amounts of water, while adding small amounts can be done directly without removing it, making the operation more flexible.

[0063] Example 2

[0064] like Figure 20 As shown, this embodiment discloses a coffee machine, including: the water level detection component 100 described above, the water level detection component 100 having a first mounting cavity and a second mounting cavity; a bean grinding component 200, the bean grinding component 200 being disposed on the water level detection component 100 and located in the first mounting cavity; and a brewing component 300, the brewing component 300 being disposed on the water level detection component 100 and located in the second mounting cavity.

[0065] The second aspect of this application discloses a coffee machine in which the grinding assembly 200 and the brewing assembly 300 can be installed at least simultaneously by setting the water level detection assembly 100. This ensures that the components used to fix the water level detection circuit board 4 are all necessary components, reduces the number of components such as connectors used to fix the water level detection circuit board 4, reduces assembly complexity, and improves the reliability of the water level detection circuit board 4.

[0066] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A water level detection component, characterized in that, include: Support assembly (1); A water tank support (2) is provided on the support base assembly (1) and the water tank support (2) is provided with a receiving cavity (201); Water tank assembly (3), the water tank assembly (3) is disposed on the water tank support (2) and located at the receiving cavity (201), the water tank assembly (3) is provided with a water storage cavity (301); A water level detection circuit board (4) is abutted against the support base assembly (1) and the water tank support (2). The water level detection circuit board (4) is sandwiched between the support base assembly (1) and the water tank support (2). The water level detection circuit board (4) is used to detect the water level of the water storage chamber (301).

2. The water level detection component according to claim 1, characterized in that, The water tank support (2) is provided with a groove (202), and the two ends of the water level detection circuit board (4) along the first length direction respectively abut against the groove walls on opposite sides of the groove (202).

3. The water level detection component according to claim 2, characterized in that, A first limiting part (11) is formed on the support assembly (1), and the water level detection circuit board (4) abuts against the groove wall of the groove (202) and the first limiting part (11) on opposite sides along the height direction; And / or the groove (202) is located on the side of the water tank support (2).

4. The water level detection component according to claim 1, characterized in that, A second limiting part (12) is formed on the support assembly (1), a third limiting part (21) is formed on the water tank support (2), and the water level detection circuit board (4) abuts against the second limiting part (12) and the third limiting part (21) on opposite sides along the first width direction.

5. The water level detection component according to claim 1, characterized in that, The water tank assembly (3) includes a water tank body (31), a cover assembly (32), and a connecting assembly (33). The water tank body (31) is disposed on the water tank support (2) and located at the receiving cavity (201). The water tank body (31) has an opening (302) and a water storage cavity (301). The opening (302) communicates with the water storage cavity (301). The cover assembly (32) is disposed on the water tank body (31) and covers the opening (302). The connecting assembly (33) is rotatably connected to the water tank body (31) and rotatably connected to the cover assembly (32).

6. The water level detection component according to claim 5, characterized in that, The connecting component (33) includes a first connecting part (331) and a second connecting part (332). The first connecting part (331) is rotatably connected to the water tank body (31), and the second connecting part (332) is disposed on the first connecting part (331) and rotatably connected to the cover assembly (32).

7. The water level detection component according to claim 6, characterized in that, The first connecting part (331) is rotatably connected to the opposite sides of the water tank body (31) at its two ends along the second length direction; And / or the two ends of the second connecting part (332) along the second length direction are rotatably connected to the two sides opposite to the cover assembly (32).

8. The water level detection component according to claim 6, characterized in that, The second connecting portion (332) is inclined relative to the first connecting portion (331); And / or the water tank body (31) is provided with a first limiting hole (303), the first connecting part (331) is rotatably engaged with the first limiting hole (303), the distance between the first limiting hole (303) and the middle part of the water tank body (31) along the second width direction is a1, the a1 being greater than 0, the cover assembly (32) is provided with a second limiting hole (304), the second connecting part (332) is rotatably engaged with the second limiting hole (304), the distance between the second limiting hole (304) and the middle part of the cover assembly (32) along the second width direction is a2, the a2 being greater than 0.

9. The water level detection component according to claim 5, characterized in that, The cover assembly (32) includes a cover body (321), a flange structure (322), and a limiting structure (323). The cover body (321) is disposed on the water tank body (31) and covers the opening (302). The cover body (321) is rotatable relative to the water tank body (31). The flange structure (322) is disposed on the cover body (321). The limiting structure (323) is disposed on the cover body (321) and the limiting structure (323) is disposed on the cover body (321). The positioning structure (323) and the flange structure (322) are located on the same side of the cover body (321). The cover body (321) can rotate at least a first angle and a second angle relative to the water tank body (31). When the cover body (321) rotates at the first angle, the positioning structure (323) abuts against the connecting component (33). When the cover body (321) rotates at the second angle, the positioning structure (323) separates from the connecting component (33).

10. A coffee machine, characterized in that, include: The water level detection component (100) as described in any one of claims 1-9, wherein the water level detection component (100) is provided with a first mounting cavity (1001) and a second mounting cavity; A coffee grinding assembly (200) is disposed on the water level detection assembly (100) and located at the first mounting cavity (1001); A brewing assembly (300) is disposed on the water level detection assembly (100) and located in the second mounting cavity.

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