Inner container assembly, steaming and baking cooking machine and self-cleaning method

Abstract

The invention relates to an inner container assembly, a steaming and baking cooking machine and a self-cleaning method, the inner container assembly comprises an inner container body, a rear wind shielding cover, a side wind shielding cover and an exhaust pump, the inner container body is provided with an exhaust groove protruding outwards from the rear wall and an air inlet groove protruding outwards from the side wall, the rear wind shielding cover is movably installed on the inner container body to selectively block a groove opening of the exhaust groove, and the side wind shielding cover is movably installed on the inner container body. The side air blocking cover is movably installed on the inner container body so as to selectively block a groove opening of the air inlet groove, and the air exhaust pump is provided with an air suction opening communicated with the air exhaust groove and an air exhaust opening communicated with the air inlet groove. When the rear wind shielding cover blocks the air exhaust groove and the side wind shielding cover blocks the air inlet groove, the air suction opening and the air exhaust opening of the air suction and exhaust pump are sealed, and when the rear wind shielding cover is far away from the air exhaust groove and the side wind shielding cover is far away from the air inlet groove, the air suction and exhaust pump is communicated with the inner container body. In this way, a user can conveniently clean the inner container, the cleaning cost is reduced, and the use experience of the user is improved.

Description

Technical Field

[0001] The invention relates to the technical field of steam-bake cooking machines, and in particular to an inner pot component, a steam-bake cooking machine and a self-cleaning method. Background Art

[0002] Existing steam-bake cooking machines usually use a built-in hot air blower assembly to achieve air circulation in the inner pot. This solution usually includes a hot air blower and a hot air blower baffle. The hot air blower baffle is provided with multiple air holes to guide the air circulation path. The air holes are usually designed to be normally open. Users can only lightly wipe the hot air blower baffle during daily cleaning, and cannot completely clean it by washing with water. In addition, during cleaning, it is easy for water droplets or cleaning liquid to enter the space behind the hot air blower baffle, that is, the space that accommodates the hot air blower blades. This part of the space is a cleaning dead corner. The cleaning liquid mixed with accumulated oil stains can easily breed bacteria, affecting cooking safety. Steam-bake cooking machines are usually used in integrated kitchens. The labor cost required for frequent disassembly and cleaning is high, which also affects the user experience. Summary of the invention

[0003] In view of the shortcomings of existing hot air blower type steam-bake cooking machines, such as blind spots for cleaning and high cleaning costs, it is necessary to provide an inner pot assembly, a steam-bake cooking machine and a self-cleaning method.

[0004] An inner liner assembly, comprising:

[0005] The inner tank body has an air exhaust slot protruding from the rear wall and an air inlet slot protruding from the side wall;

[0006] A rear windshield cover is movably mounted on the inner tank body to selectively block the notch of the exhaust slot;

[0007] A side wind shield cover is movably mounted on the inner tank body to selectively block the notch of the air inlet slot; and

[0008] An exhaust pump having an air suction port connected to the exhaust slot and an air exhaust port connected to the air inlet slot;

[0009] When the rear wind shield cover blocks the exhaust slot and the side wind shield cover blocks the air inlet slot, the air intake and exhaust ports of the exhaust pump are closed; when the rear wind shield cover is away from the exhaust slot and the side wind shield cover is away from the air inlet slot, the exhaust pump is connected to the inner tank body.

[0010] With such a configuration, the inner surface of the liner body can be free of pores by respectively blocking the notches of the exhaust slot and the air inlet slot through the rear wind shield cover and the side wind shield cover, which facilitates direct spray cleaning by users without having to worry about the risk of odor or bacterial growth caused by the accumulation of water droplets or cleaning liquid in the liner assembly. This reduces the number of times the entire machine needs to be cleaned, reduces cleaning costs, and improves the user experience.

[0011] In one embodiment, the rear windshield cover includes a first cover plate and a first clamping ring fixed to the first cover plate, the first clamping ring is inserted into the exhaust slot, a plurality of ventilation holes are opened on the side of the first clamping ring, and the first cover plate is used to block the exhaust slot; and / or

[0012] The side wind shield cover includes a second cover plate and a second clamping ring fixed to the second cover plate, the second clamping ring is inserted into the exhaust slot, a plurality of ventilation holes are opened on the side of the second clamping ring, and the second cover plate is used to block the air inlet slot.

[0013] With such a configuration, the exhaust slot and the air inlet slot can be kept covered by plugging and unplugging, which is also beneficial for preventing oil droplets splashing during cooking from entering the exhaust slot and the air inlet slot. The first clamping ring and the second clamping ring can also maintain the smooth sliding of the rear wind shield cover and the side wind shield cover to avoid shaking.

[0014] In one embodiment, the liner assembly further comprises a first driving member installed in the exhaust slot and drivingly connected to the rear wind shield cover; and / or

[0015] The liner assembly also includes a second driving member installed in the air inlet slot and drivingly connected to the side wind shield cover.

[0016] Such arrangement can realize automatic opening or closing of the rear wind shield cover and the side wind shield cover, thus simplifying the operation and realizing automatic processing.

[0017] In one of the embodiments, the inner tank assembly further includes a heating element installed on the air inlet slot.

[0018] With such arrangement, the heating element is used to heat the circulating airflow outside the inner tank body, ensuring that the circulation in the inner tank body will not cool down.

[0019] In one embodiment, the air exhaust slot is provided with a first water guide hole, and the air inlet slot is provided with a second water guide hole.

[0020] In this way, the two water guide holes provide an interface for the user to inject water or cleaning liquid when cleaning the exhaust pump, making it convenient to clean the exhaust slot and the air inlet slot.

[0021] In one embodiment, the air inlet groove has a first side wall and a second side wall arranged opposite to each other, and the inner tank assembly also includes a guide pipe installed on the second side wall and connected to the air inlet groove, and the extension direction of the guide pipe is inclined with the first side wall and connected to the exhaust pump.

[0022] With such arrangement, when water or cleaning liquid enters the water inlet slot from the guide pipe, it will directly rush toward the first side wall and form a turbulent vortex under the guidance of the guide section, thereby being able to clean multiple corners of the air inlet slot and improving the cleaning effect.

[0023] In one embodiment, the guide tube is located at the bottom end of the second side wall, and the first side wall has a guide section that gradually approaches the second side wall along the vertical downward direction.

[0024] With such arrangement, the water flow emitted from the guide pipe of the second side wall will rush toward the guide end of the first side wall and generate water splashes, thereby achieving the effect of cleaning the air inlet slot.

[0025] In one embodiment, the guide section is arc-shaped.

[0026] Such an arrangement helps to form a turbulent vortex in the air inlet slot and also reduces cleaning dead corners in the air inlet slot.

[0027] The present application also provides a steaming and baking cooking machine, comprising:

[0028] water tank; and

[0029] As in the above-mentioned inner liner assembly, the first water guide hole and the second water guide hole of the inner liner assembly are respectively connected to the water tank.

[0030] With this arrangement, the water tank, air inlet slot, drain slot and exhaust pump form a water circulation system, which enables the steam-bake cooking machine to have a self-cleaning function, reduces the risk of bacteria breeding in the pipes, and also reduces the cleaning cost of the steam-bake cooking machine.

[0031] The present application also provides a self-cleaning method for the above-mentioned steam-bake cooking machine, comprising the following steps:

[0032] Drive the rear windshield cover to block the exhaust slot;

[0033] The wind shield on the driving side blocks the air inlet slot;

[0034] Controlling the fan blades of the exhaust pump to rotate forward so that the water in the water tank flows from the first water guide hole into the exhaust slot and flows out of the air inlet slot from the second water guide hole; and

[0035] After the exhaust pump has been working for a preset time, the fan blades of the exhaust pump are controlled to rotate in the opposite direction so that the water in the water tank flows into the air inlet slot from the second water guide hole and flows out of the air outlet slot from the first water guide hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the structure of an inner liner assembly in an embodiment provided in the present application;

[0037] Figure 2 for Figure 1 A schematic diagram of the structure of the inner liner assembly shown in another viewing angle;

[0038] Figure 3 for Figure 1 Schematic diagram of the structure of the middle and rear windshield cover;

[0039] Figure 4 for Figure 1 A schematic diagram of the structure of the middle side windshield cover;

[0040] Figure 5 for Figure 1 A top view of the liner assembly shown;

[0041] Figure 6 for Figure 5 A cross-sectional view of the inner liner assembly taken along the AA direction;

[0042] Figure 7 for Figure 5 The sectional view of the inner liner assembly shown is taken along the BB direction.

[0043] Reference numerals:

[0044] 10. Inner tank body; 101. Exhaust slot; 102. Inlet slot; 1021. First side wall; 10211. Guide section; 1022. Second side wall; 20. Rear wind shield; 21. First cover plate; 22. First clamp ring; 221. First ventilation hole; 30. Side wind shield; 31. Second cover plate; 32. Second clamp ring; 321. Second ventilation hole; 40. Exhaust pump; 51. First driving member; 52. Second driving member; 60. Heating member; 71. First water guide hole; 72. Second water guide hole; 80. Guide pipe. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0051] Existing steam-bake cooking machines usually use a built-in hot air blower assembly to achieve air circulation in the inner pot. This solution usually includes a hot air blower and a hot air blower baffle. The hot air blower baffle is provided with multiple air holes to guide the air circulation path. The air holes are usually designed to be normally open. Users can only lightly wipe the hot air blower baffle during daily cleaning, and cannot completely clean it by washing with water. In addition, during cleaning, it is easy for water droplets or cleaning liquid to enter the space behind the hot air blower baffle, that is, the space that accommodates the hot air blower blades. This part of the space is a cleaning dead corner. The cleaning liquid mixed with accumulated oil stains can easily breed bacteria, affecting cooking safety. Steam-bake cooking machines are usually used in integrated kitchens. The labor cost required for frequent disassembly and cleaning is high, which also affects the user experience.

[0052] Based on this, it is necessary to provide an inner pot assembly, a steam-bake cooking machine and a self-cleaning method that are convenient for users to clean the inner pot.

[0053] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 , Figure 7 , Figure 1 This is a schematic diagram of the structure of an inner liner assembly in an embodiment provided in the present application. Figure 2 for Figure 1 The schematic diagram of the structure of the liner assembly shown in another perspective, Figure 5 for Figure 1 A top view of the liner assembly shown, Figure 6 for Figure 5 The cross-sectional view of the inner tank assembly shown in the AA direction, Figure 7 for Figure 5 The sectional view of the inner liner assembly shown is taken along the BB direction.

[0054] The liner assembly provided by the present application includes a liner body 10, a rear wind shield cover 20, a side wind shield cover 30 and an exhaust pump 40. The liner body 10 has an exhaust slot 101 protruding from the rear wall and an air inlet slot 102 protruding from the side wall, the rear wind shield cover 20 is movably mounted on the liner body 10 to selectively block the notch of the exhaust slot 101, the side wind shield cover 30 is movably mounted on the liner body 10 to selectively block the notch of the air inlet slot 102, and the exhaust pump 40 has an air inlet connected to the exhaust slot 101 and an exhaust port connected to the air inlet slot 102. When the rear wind shield 20 blocks the exhaust slot 101 and the side wind shield 30 blocks the air inlet slot 102, the air inlet and exhaust port of the exhaust pump 40 are closed. When the rear wind shield 20 is away from the exhaust slot 101 and the side wind shield 30 is away from the air inlet slot 102, the exhaust pump 40 is connected to the inner liner body 10. In this way, the inner surface of the inner liner body 10 can be made free of pores by blocking the notches of the exhaust slot 101 and the air inlet slot 102 by the rear wind shield 20 and the side wind shield 30, respectively, so that the user can directly spray and clean without worrying about the risk of odor or bacteria caused by the accumulation of water droplets or cleaning liquid in the inner liner assembly, thereby reducing the number of times the whole machine needs to be cleaned, reducing the cleaning cost, and improving the user's experience. Optionally, the number of the exhaust pump 40 and the exhaust slot 101 is two corresponding groups, matching the two side walls of the inner liner body 10.

[0055] For further information, please also refer to Figure 1 and Figure 3 , Figure 4 , Figure 3 for Figure 1 A schematic diagram of the structure of the middle and rear windshield cover 20, Figure 4 for Figure 1Schematic diagram of the structure of the middle wind shield cover 30. Optionally, in one embodiment provided in the present application, the rear wind shield cover 20 includes a first cover plate 21 and a first snap ring 22 fixed to the first cover plate 21, the first snap ring 22 is inserted into the exhaust slot 101, a plurality of first ventilation holes 221 are provided on the side of the first snap ring 22, and the first cover plate 21 is used to block the exhaust slot 101. The side wind shield cover 30 includes a second cover plate 31 and a second snap ring 32 fixed to the second cover plate 31, the second snap ring 32 is inserted into the exhaust slot 101, a plurality of second ventilation holes 321 are provided on the side of the second snap ring 32, and the second cover plate 31 is used to block the air inlet slot 102. In this way, the exhaust slot 101 and the air inlet slot 102 can be shielded by plugging and unplugging, which is also helpful to prevent oil droplets splashing during cooking from entering the exhaust slot 101 and the air inlet slot 102. The first clamp ring 22 and the second clamp ring 32 can also maintain the stability of the sliding of the rear wind shield cover 20 and the side wind shield cover 30 to avoid shaking. Furthermore, the inner tank assembly also includes a first driving member 51 installed in the exhaust slot 101 and drivingly connected to the rear wind shield cover 20, and the inner tank assembly also includes a second driving member 52 installed in the air inlet slot 102 and drivingly connected to the side wind shield cover 30. In this way, the rear wind shield cover 20 and the side wind shield cover 30 can be automatically opened or closed, which simplifies the operation and realizes automatic processing.

[0056] See also Figures 5 to 7 , Figure 5 for Figure 1 A top view of the liner assembly shown, Figure 6 for Figure 5 The cross-sectional view of the inner tank assembly shown in the AA direction, Figure 7 for Figure 5 The sectional view of the liner assembly in the BB direction is shown. Optionally, the liner assembly further includes a heating element 60 installed in the air inlet slot 102, and the heating element 60 is used to heat the circulating airflow outside the liner body 10 to ensure that the circulation in the liner body 10 will not cool down.

[0057] See also Figure 2 Since the exhaust pump 40 will also accumulate oil and dirt during long-term use, in an embodiment provided in the present application, the exhaust slot 101 is provided with a first water guide hole 71, and the air inlet slot 102 is provided with a second water guide hole 72. The setting of the two water guide holes provides an interface for the user to inject water or cleaning liquid when cleaning the exhaust pump 40. It can be understood that the exhaust pump 40 is a dual-purpose water-liquid pump. Turning on the exhaust pump 40 during cleaning can also increase the self-cleaning effect.

[0058] See also Figure 6Furthermore, in order to improve the cleaning effect of the water inlet tank, the water inlet tank has a first side wall 1021 and a second side wall 1022 arranged relatively to each other, and the inner tank assembly also includes a guide pipe 80 installed on the second side wall 1022 and connected to the air inlet tank 102, the extension direction of the guide pipe 80 is inclined with the first side wall 1021, and the guide pipe 80 is connected to the exhaust pump 40, so that when water or cleaning liquid enters the water inlet tank from the guide pipe 80, it will directly rush to the first side wall 1021 and form a turbulent vortex under the guidance of the guide section 10211, so that multiple corners of the air inlet tank 102 can be cleaned and the cleaning effect can be improved. Furthermore, the guide section 10211 is arc-shaped, which not only helps the formation of turbulent vortices, but also reduces the cleaning dead corners in the air inlet tank 102.

[0059] The present application also provides a steam-bake cooking machine, including a water tank and an inner pot assembly, wherein the first water guide hole 71 and the second water guide hole 72 of the inner pot assembly are respectively connected to the water tank, so that the water tank, the air inlet groove 102, the drainage groove and the exhaust pump 40 form a water circulation system, so that the steam-bake cooking machine has a self-cleaning function, reduces the risk of bacteria breeding in the pipeline, and also reduces the cleaning cost of the steam-bake cooking machine.

[0060] The present application also provides a self-cleaning method for the above-mentioned steam-bake cooking machine, comprising the following steps:

[0061] S1, driving the rear wind shield cover 20 to block the exhaust slot 101;

[0062] S2, the driving side wind shield 30 blocks the air inlet slot 102;

[0063] S3, controlling the fan blades of the exhaust pump 40 to rotate forward so that the water in the water tank flows from the first water guide hole 71 into the exhaust slot 101 and flows out of the air inlet slot 102 from the second water guide hole 72; and

[0064] S4. After the exhaust pump 40 has been working for a preset time, the fan blades of the exhaust pump 40 are controlled to rotate in the opposite direction so that the water in the water tank flows into the air inlet slot 102 from the second water guide hole 72 and flows out of the air outlet slot 101 from the first water guide hole 71.

[0065] Optionally, in an embodiment provided in the present application, the following steps are also included: between S2 and S3, S5 is included, setting the total number of cycles; after S4, S6 is included, after the exhaust pump 40 works for a preset time, determining whether the number of cycles exceeds the total number of cycles; if so, stopping the cycle; otherwise, returning to S3.

[0066] Optionally, in the above self-cleaning method, after S6, it also includes S7, driving the rear wind shield cover 20 away from the notch of the exhaust slot 101; S8, driving the side wind shield cover 30 away from the air inlet slot 102; S9, controlling the fan blades of the exhaust pump 40 to rotate forward or reversely to guide the air in the inner tank body 10 to circulate and exchange with the air in the exhaust slot 101 and the air inlet slot 102; S10, starting the heating element 60 to heat the circulating air to speed up the drying of the exhaust slot 101 and the air inlet slot 102.

[0067] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An inner liner assembly, characterized in that: include: The inner container body (10) has an air exhaust slot (101) protruding from the rear wall and an air inlet slot (102) protruding from the side wall; A rear wind shield cover (20) is movably mounted on the inner tank body (10) to selectively block the notch of the exhaust slot (101); A side wind shield (30) is movably mounted on the inner liner body (10) to selectively block the notch of the air inlet slot (102); as well as An exhaust pump (40) having an air intake port connected to the exhaust slot (101) and an air exhaust port connected to the air inlet slot (102); When the rear wind shield cover (20) blocks the exhaust slot (101) and the side wind shield cover (30) blocks the air inlet slot (102), the air intake and exhaust ports of the exhaust pump (40) are closed; when the rear wind shield cover (20) is away from the exhaust slot (101) and the side wind shield cover (30) is away from the air inlet slot (102), the exhaust pump (40) is connected to the inner tank body (10).

2. The liner assembly according to claim 1, characterized in that: The rear windshield cover (20) comprises a first cover plate (21) and a first clamping ring (22) fixed to the first cover plate (21), the first clamping ring (22) being inserted into the exhaust slot (101), a plurality of first ventilation holes (221) being provided on a side surface of the first clamping ring (22), and the first cover plate (21) being used to block the exhaust slot (101); and / or The side wind shield cover (30) comprises a second cover plate (31) and a second clamping ring (32) fixed to the second cover plate (31); the second clamping ring (32) is inserted into the air exhaust slot (101); a plurality of second ventilation holes (321) are provided on the side surface of the second clamping ring (32); and the second cover plate (31) is used to block the air inlet slot (102).

3. The liner assembly according to claim 2, characterized in that: The liner assembly further comprises a first driving member (51) installed in the exhaust slot (101) and drivingly connected to the rear wind shield cover (20); and / or The liner assembly also includes a second driving member (52) installed in the air inlet slot (102) and drivingly connected to the side wind shield cover (30).

4. The liner assembly according to claim 1, characterized in that: The liner assembly also includes a heating element (60) installed on the air inlet slot (102).

5. The liner assembly according to any one of claims 1 to 4, characterized in that: The air exhaust slot (101) is provided with a first water guide hole (71), and the air inlet slot (102) is provided with a second water guide hole (72).

6. The liner assembly according to claim 5, characterized in that: The air inlet groove (102) has a first side wall (1021) and a second side wall (1022) arranged opposite to each other, and the inner tank assembly also includes a guide pipe (80) installed on the second side wall (1022) and connected to the air inlet groove (102), and the extension direction of the guide pipe (80) is inclined with respect to the first side wall (1021) and is connected to the exhaust pump (40).

7. The liner assembly according to claim 6, characterized in that: The guide tube (80) is located at the bottom end of the second side wall (1022), and the first side wall (1021) has a guide section (10211) that gradually approaches the second side wall (1022) in the vertical downward direction.

8. The liner assembly according to claim 7, characterized in that: The guide section (10211) is arc-shaped.

9. A steaming and baking cooking machine, characterized in that: include: Water tank; and According to the inner liner assembly as described in any one of claims 1 to 8, the first water guide hole (71) and the second water guide hole of the inner liner assembly are respectively connected to the water tank.

10. A self-cleaning method, characterized in that: The steaming and baking cooking machine as claimed in claim 9 comprises the following steps: The rear wind shield cover (20) is driven to block the exhaust slot (101); The driving side wind shield (30) blocks the air inlet slot (102); Controlling the fan blades of the exhaust pump (40) to rotate in a positive direction so that water in the water tank flows from the first water guide hole (71) into the exhaust slot (101) and flows out of the air inlet slot (102) from the second water guide hole (72); and When the exhaust pump (40) operates for a preset time, the fan blades of the exhaust pump (40) are controlled to rotate in the opposite direction so that water in the water tank flows from the second water guide hole (72) into the air inlet groove (102) and flows out of the air outlet groove (101) from the first water guide hole (71).

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