Knob assembly and food processor

Abstract

The invention relates to the technical field of household appliances, and discloses a knob assembly and a food processor. The knob assembly includes: a knob body; the rotary connecting structure is connected to one side of the knob main body and is suitable for being rotationally connected with a shell of the household appliance; and the flow guide structure is formed between the opposite surfaces of the knob assembly and the shell, is arranged around the rotary connecting structure and is suitable for guiding water between the shell and the knob assembly to flow out through a gap between the lower part of the knob assembly and the shell. The knob assembly can overcome the defects that when a knob type household appliance in the prior art is used, water easily enters a gap between the knob assembly and the shell, so that a control panel or a flat cable of the household appliance is damaged, and even a user gets an electric shock, and the knob assembly can prevent water from entering the shell of the household appliance. And water entering between the knob assembly and the shell is guided out, so that the waterproof effect of the household appliance is improved.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to a knob assembly and a food processor. Background Art

[0002] The existing household appliances have a variety of function selection modes, such as bulge button type, knob type and touch button type. Household appliances such as humidifiers, microwave ovens, electric ovens, electric fans and food processors usually use knob assemblies for function selection. Taking a food processor as an example, a knob-type food processor includes a housing with a knob mounting opening, a control panel or a cable disposed in the housing, and the knob assembly is rotatably disposed at the knob mounting opening and connected to the control panel or the cable point.

[0003] When this type of food processor is in use, water is likely to seep into the connection between the knob assembly and the housing. Since the knob assembly is connected to the control board or cable of the food processor, water that seeps into the housing is likely to damage the control board or cable of the food processor, and may even pose a risk of electric shock to the user. Summary of the invention

[0004] In view of this, the present invention provides a knob assembly and a food processor to solve the problem that the connection between the existing knob assembly and the housing is prone to water seepage, causing damage to the control panel or the wiring, and even causing electric shock to the user.

[0005] In a first aspect, the present invention provides a knob assembly, comprising:

[0006] Knob body;

[0007] A rotary connection structure, which is connected to one side of the knob body and is suitable for being rotatably connected to the housing of the household appliance;

[0008] The flow guide structure is formed between the opposite surfaces of the knob assembly and the shell and is arranged around the rotary connection structure, and is suitable for guiding the water between the shell and the knob assembly to flow out through the gap between the lower part of the knob assembly and the shell.

[0009] Beneficial effects:

[0010] The knob assembly of the present invention includes a guide structure formed between the opposite surfaces of the knob assembly and the shell, so that during the use of the knob assembly, the guide structure can guide the water between the knob assembly and the shell to flow out through the gap between the bottom of the knob assembly and the shell, thereby preventing water from entering the household appliance through the gap between the knob assembly and the shell of the household appliance, causing damage to the control panel or wiring of the household appliance, and can also guide the water to be discharged quickly to avoid water remaining between the knob assembly and the shell, causing bacterial growth.

[0011] Therefore, the knob assembly of the present invention can overcome the defect in the prior art that the gap between the knob assembly and the outer shell of the knob-type household appliance is easily flooded when in use, causing damage to the control panel or wiring of the household appliance, or even causing electric shock to the user. It can prevent water from entering the outer shell of the household appliance and guide the water that enters between the knob assembly and the outer shell, thereby improving the waterproof effect of the household appliance.

[0012] As an optional implementation, the guide structure includes a guide groove formed on the outer periphery of the rotating connection structure and arranged around the rotating connection structure.

[0013] Beneficial effect: The guide groove is suitable for preventing water from diffusing on the outer surface of the rotating connection structure, causing it to enter the interior of the shell, and guiding the water downward along the circumference of the rotating connection structure until it flows out from the gap between the lower part of the knob assembly and the shell.

[0014] As an optional implementation, the flow guiding structure further includes:

[0015] The water retaining convex part is arranged on the outer periphery of the rotating connection structure and surrounds the rotating connection structure. The guide groove is formed between the water retaining convex part and the knob body.

[0016] Beneficial effects:

[0017] The water retaining protrusion can prevent the water in the guide groove from entering the household appliance through the gap between the knob assembly and the housing of the household appliance, thereby damaging the control panel or wiring of the household appliance.

[0018] As an optional implementation, along the direction away from the bottom of the guide groove, the side wall of the water retaining protrusion close to the knob body is inclined in the direction away from the knob body.

[0019] Beneficial effects:

[0020] By such arrangement, the water retaining protrusion can guide water in a larger range along the length direction of the rotating connection structure into the guide groove, and expand the volume of the guide groove to prevent water from flowing over the water retaining protrusion and entering the housing of the household appliance.

[0021] As an optional implementation, the distance between the top of the water retaining protrusion and the knob body is d1,2mm≤d1≤2.8mm.

[0022] In a second aspect, the present invention further provides a food processor, comprising:

[0023] A housing, wherein a knob installation opening is provided on the housing;

[0024] In the knob assembly of the first aspect of the present invention, the rotary connection structure of the knob assembly passes through the knob mounting opening and is rotatably connected to the housing.

[0025] Beneficial effects:

[0026] The food processor of the second aspect of the present invention includes or uses the knob assembly of the first aspect of the present invention, and thus can overcome the defect in the prior art that water can easily enter the gap between the knob assembly and the outer shell of the food processor when in use, causing damage to the control panel or wiring of the food processor, or even causing electric shock to the user. It can prevent water from entering the outer shell of the household appliance and drain the water that enters between the knob assembly and the outer shell, thereby improving the waterproof effect of the household appliance.

[0027] In an optional embodiment, the flow guiding structure further includes a flow guiding protrusion, which is formed on the knob body and extends toward the housing; and / or,

[0028] The flow guide protrusion is formed on the housing and extends toward the knob body.

[0029] Beneficial effects:

[0030] Through such an arrangement, most of the water flowing onto the base assembly can first be guided by the guide protrusion to the bottom of the annular guide protrusion, and then flow out through the lower gap between the knob assembly and the outer shell, thereby improving the waterproof performance of the food processor.

[0031] In an optional embodiment, a flow-guiding protrusion is formed on the outer shell, and a flow-through gap is formed between the flow-guiding protrusion and the knob body, and a width of the flow-through gap is 0.1 mm≤d2≤0.3 mm.

[0032] Beneficial effects:

[0033] The flow gap can guide the water on the guide protrusion to enter the guide groove accurately, and can facilitate the water at the lower end of the guide groove to flow out through the flow gap, thereby reducing the risk of water accumulation between the knob assembly and the housing.

[0034] In an optional embodiment, the flow guide protrusion is inclined downward along a direction approaching the knob body.

[0035] Beneficial effects:

[0036] The water on the guide protrusion can be guided to flow into the guide groove through the flow gap, and the water on the guide protrusion can be prevented from flowing toward the shell, thereby causing the hidden danger of water entering the shell.

[0037] In an optional embodiment, the housing comprises:

[0038] a housing body having an assembly opening formed thereon;

[0039] The knob decoration piece is located at the assembly opening and is detachably connected to the shell body. The knob assembly opening is formed on the knob decoration piece, and the rotation connection structure passes through the knob assembly opening and is rotationally connected to the shell.

[0040] Beneficial effects:

[0041] The knob decoration is suitable for covering the connection structure between the knob assembly and the housing, and improving the aesthetics of the food processor.

[0042] In an optional embodiment, a first water leakage port is formed at the bottom of the knob decoration, and a second water leakage port connected to the first water leakage port is formed at the bottom of the shell.

[0043] Beneficial effects:

[0044] Through such a configuration, when a large amount of liquid flows into the bottom of the knob decoration, causing excessive liquid to accumulate at the bottom of the knob decoration in a short period of time, part of the liquid can flow out through the bottom gap between the knob assembly and the knob decoration, and the remaining liquid can flow into the outer shell through the first leakage hole set at the bottom of the knob decoration, and then flow out through the second leakage hole at the bottom of the outer shell, ensuring that even if a large amount of liquid flows in, the display panel or cable of the food processor is not easily infiltrated with water.

[0045] In an optional embodiment, a connecting ring wall is formed in the middle portion of the knob decoration, and along the direction close to the axis of the knob body, the connecting ring wall is inclined toward the side away from the knob body, and the connecting ring wall is suitable for surrounding a knob mounting opening, and the rotating connection structure includes a hook, which is suitable for extending into the knob mounting opening and hooking the end of the connecting ring wall.

[0046] Beneficial effects:

[0047] The knob assembly can be rotatably connected to the housing by the hook and the connecting ring wall. When the connecting ring wall is arranged to be inclined in a direction away from the knob body, the connecting ring wall can not only apply a pressing force along the circumference of the knob to the rotating connection of the knob assembly to prevent the knob assembly from feeling loose during rotation, but also form a guide slope on the lower side of the knob decoration. In the direction close to the knob body, the guide slope is inclined downward, which can guide water to the bottom gap between the knob body and the knob decoration.

[0048] In an optional embodiment, an annular protrusion inclined toward the direction of the knob body is formed on the knob decoration, and the annular protrusion is arranged around the outside of the knob installation opening and abuts against the outer periphery of the knob body.

[0049] Beneficial effects:

[0050] The annular protrusion can guide water to flow onto the surface of the knob assembly, or to remain along the circumference of the annular protrusion, thereby reducing the risk of water flowing into the gap between the knob assembly and the housing, thereby further improving the waterproof performance of the food processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0052] Figure 1 is a three-dimensional diagram of a knob body according to an embodiment of the present invention;

[0053] Figure 2 An exploded view of a base assembly of a food processor according to an embodiment of the present invention;

[0054] Figure 3 A partial cross-sectional view of a food processor according to an embodiment of the present invention;

[0055] Figure 4 for Figure 3 A in the enlarged view;

[0056] Figure 5 is a side sectional view of a food processor according to an embodiment of the present invention;

[0057] Figure 6 for Figure 5 The enlarged view of point B in the figure;

[0058] Figure 7 for Figure 5 The enlarged view of point C in the figure;

[0059] Figure 8 A partial cross-sectional view of a food processor according to an embodiment of the present invention at another angle;

[0060] Fig. 9 for Figure 8 The enlarged view of point D in the figure;

[0061] Fig.10 A three-dimensional diagram of a knob decoration of a food processor according to an embodiment of the present invention;

[0062] Fig.11 is a schematic diagram of the interior of the housing of a food processor according to an embodiment of the present invention, and shows the connection between the knob decoration and the knob assembly;

[0063] Fig.12 It is a front view of a knob decoration of a food processor according to an embodiment of the present invention;

[0064] Fig.13 A side sectional view of a base assembly according to an embodiment of the present invention;

[0065] Fig.14 for Fig.13 An enlarged view of the guide protrusion of the base assembly.

[0066] Description of reference numerals:

[0067] 1. Knob body;

[0068] 2. Rotating connection structure; 201. Guide groove; 203. Hook; 204. Arc-shaped supporting wall;

[0069] 3. Water retaining convex part;

[0070] 4. Shell; 401. Knob installation port; 402. Shell body; 4021. Second water leakage port; 403. Knob decoration; 4031. First water leakage port; 4032. Connecting ring wall; 4033. Annular protrusion; 4034. Guide protrusion; 404. Assembly port. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0072] The knob assembly of the present invention is preferably, but not limited to, used in household appliances such as humidifiers, microwave ovens, electric ovens, electric fans, and food processors. Taking a food processor as an example, the food processor generally includes a cup body assembly and a base assembly disposed below the cup body assembly, and the knob assembly is rotatably mounted on the base assembly. During the use of the food processor, the user often needs to add water to the cup body assembly. During the operation of the food processor, the liquid in the cup body assembly rotates at a high speed. Therefore, it is easy for water to flow onto the base assembly, and flow into the outer shell 4 through the gap between the outer shell 4 of the base assembly and the knob assembly, and damage the control panel or cable connected to the knob assembly, resulting in damage to the food processor, and even the risk of electric shock to the user.

[0073] Combine the following Figure 1 to Figure 2 , describing an embodiment of the present invention.

[0074] According to an embodiment of the present invention, on the one hand, a knob assembly is provided, comprising a knob body 1, a rotary connection structure 2 and a guide structure. The rotary connection structure 2 is connected to one side of the knob body 1 and is suitable for being rotatably connected to a housing 4 of a household appliance. The guide structure is formed between the opposite surfaces of the knob assembly and the housing 4 and is arranged around the rotary connection structure 2, and is suitable for guiding water between the housing 4 and the knob assembly to flow out through the gap between the lower part of the knob assembly and the housing 4.

[0075] The knob assembly of the present invention includes a guide structure formed between the opposite surfaces of the knob assembly and the shell 4, so that during the use of the knob assembly, the guide structure can guide the water between the knob assembly and the shell 4 to flow out through the gap between the bottom of the knob assembly and the shell 4, thereby preventing water from entering the household appliance through the gap between the knob assembly and the shell 4 of the household appliance, causing damage to the control panel or wiring of the household appliance, and can also guide the water to be discharged quickly to avoid water remaining between the knob assembly and the shell 4, causing bacterial growth.

[0076] Therefore, the knob assembly of the present invention can overcome the defect in the prior art that the gap between the knob assembly and the outer shell 4 of the knob-type household appliance is easily flooded when in use, causing damage to the control panel or wiring of the household appliance, or even causing electric shock to the user. It can prevent water from entering the outer shell 4 of the household appliance and guide the water that enters between the knob assembly and the outer shell 4, thereby improving the waterproof effect of the household appliance.

[0077] In one embodiment, the guide structure includes a guide groove 201 formed on the outer circumference of the rotating connection structure 2 and arranged around the rotating connection structure 2. The guide groove 201 is suitable for preventing water from diffusing on the outer surface of the rotating connection structure 2 and entering the interior of the housing 4, and guiding the water downward along the circumference of the rotating connection structure 2 until it flows out from the gap between the lower part of the knob assembly and the housing 4.

[0078] In one embodiment, the diversion structure further includes a water retaining protrusion 3. The water retaining protrusion 3 is arranged on the outer periphery of the rotating connection structure 2 and is arranged around the rotating connection structure 2, and the diversion groove 201 is formed between the water retaining protrusion 3 and the knob body 1. The water retaining protrusion 3 can prevent the water in the diversion groove 201 from entering the household appliance through the gap between the knob assembly and the housing 4 of the household appliance, causing damage to the control panel or wiring of the household appliance.

[0079] The water retaining protrusion 3 may be extended in the vertical direction, in one embodiment, in the direction away from the bottom of the guide groove 201. The side wall of the water retaining protrusion 3 close to the knob body 1 is inclined in the direction away from the knob body 1. By such a configuration, the water retaining protrusion 3 can guide a large range of water along the length direction of the rotating connection structure 2 into the guide groove 201, and expand the volume of the guide groove 201, so as to prevent water from flowing over the water retaining protrusion 3 and entering the housing 4 of the household appliance.

[0080] In one embodiment, Fig.14As shown, the distance between the top of the water retaining protrusion 3 and the knob body 1 is d1. Preferably, 2mm≤d1≤2.8mm, which can meet the water conduction requirements of knob-type household appliances in most cases. In a more preferred embodiment, the distance between the top of the water retaining protrusion 3 and the knob body 1 is 2.4mm. According to an embodiment of the present invention, on the other hand, a food processor is also provided, including a housing 4 and a knob assembly. A knob mounting opening 401 is provided on the housing 4. The knob assembly is the knob assembly of the first aspect of the present invention. The rotary connection structure 2 of the knob assembly passes through the knob mounting opening 401 and is rotatably connected to the housing 4, so that water flowing into between the knob assembly and the housing 4 can fall onto the rotary connection structure 2.

[0081] Combine the following Figures 2 to 14 , describing an embodiment of the present invention.

[0082] The food processor of the present invention includes or uses the knob assembly of the first aspect of the present invention, and thus can overcome the defect in the prior art that water easily enters the gap between the knob assembly and the outer shell 4 when the food processor is in use, causing damage to the control panel or wiring of the food processor, or even causing electric shock to the user. It can prevent water from entering the outer shell 4 of the household appliance, and guide the water that enters between the knob assembly and the outer shell 4, thereby improving the waterproof effect of the household appliance.

[0083] The axis of the knob assembly may be arranged in the horizontal direction. Preferably, in this embodiment, Figure 2 As shown, the surface of the housing 4 is a concave arc surface, and the axis of the knob assembly is tilted upward in the direction away from the housing 4.

[0084] In one embodiment, the flow guiding structure further includes a flow guiding protrusion 4034, which is formed on the knob body 1 and extends toward the housing 4; and / or,

[0085] like Figure 3 and Figure 4 As shown, the guide protrusion 4034 is formed on the housing 4 and extends toward the knob body 1.

[0086] The flow guiding protrusion 4034 is arranged around the knob installation opening 401 .

[0087] like Figure 5 and Figure 6 As shown, through such an arrangement, most of the water flowing onto the base assembly can first be guided by the guide protrusion 4034 to the bottom of the annular guide protrusion 4034, and then flow out through the lower gap between the knob assembly and the outer shell 4, thereby improving the waterproof performance of the food processor.

[0088] In one embodiment, the guide protrusion 4034 is formed on the housing 4, such as Fig.14As shown, a flow gap is formed between the guide protrusion 4034 and the knob body 1, and the width of the flow gap is 0.1mm≤d2≤0.3mm. The flow gap can guide the water on the guide protrusion 4034 to accurately enter the guide groove 201, and can facilitate the water at the lower end of the guide groove 201 to flow out through the flow gap, reducing the risk of water accumulation between the knob assembly and the housing 4.

[0089] As a convertible embodiment, the guide protrusion 4034 can also be arranged to abut against the knob body 1. By such an arrangement, the guide protrusion 4034 can guide most of the water to flow out through the gap between the lower part of the knob assembly and the housing 4.

[0090] The flow guiding protrusion 4034 may be a flow guiding rib extending in a direction perpendicular to the shell wall of the shell 4. In one embodiment, the flow guiding protrusion 4034 is inclined downward in a direction close to the knob body 1, which can guide the water on the flow guiding protrusion 4034 to flow into the flow guiding groove 201 through the flow gap, and prevent the water on the flow guiding protrusion 4034 from flowing toward the shell 4, causing the hidden danger of water entering the shell 4.

[0091] In one embodiment, Fig.10 , 11 and Fig.12 As shown, the housing 4 includes a housing body 402 and a knob decoration 403. The housing body 402 is formed with an assembly opening 404. The knob decoration 403 is located at the assembly opening 404 and is detachably connected to the housing body 402. The knob installation opening 401 is formed on the knob decoration 403.

[0092] The outer periphery of the knob decoration 403 is preferably provided with a first card and structure, and the shell body 402 is provided with a second card and structure, and the second card and structure are arranged around the assembly port 404, and the connection relationship is one-to-one corresponding.

[0093] In one embodiment, Figure 8 and Fig. 9 As shown, a first water leakage port 4031 is formed at the bottom of the knob decoration 403 , and a second water leakage port 4021 communicating with the first water leakage port 4031 is formed at the bottom of the housing 4 .

[0094] like Figure 5 and Figure 7As shown, through such an arrangement, when a large amount of liquid flows into the bottom of the knob decoration 403, causing excessive liquid to accumulate at the bottom of the knob decoration 403 in a short period of time, part of the liquid can flow out through the bottom gap between the knob assembly and the knob decoration 403, and the remaining liquid can flow into the outer shell 4 through the first leakage hole set at the bottom of the knob decoration 403, and then flow out through the second leakage port 4021 at the bottom of the outer shell 4, ensuring that even if a large amount of liquid flows in, the display panel or cable of the food processor is not easily infiltrated with water.

[0095] In one embodiment, a connecting ring wall 4032 is formed in the middle of the knob decoration 403. Along the direction close to the axis of the knob body 1, the connecting ring wall 4032 is inclined toward a side away from the knob body 1. The connecting ring wall 4032 is suitable for surrounding the knob installation opening 401, and the rotary connection structure 2 includes a hook 203. The hook 203 is suitable for extending into the knob installation opening 401 and hooking the end of the connecting ring wall 4032.

[0096] The knob assembly can be rotatably connected to the housing 4 by the engagement of the hook 203 and the connecting ring wall 4032. When the connecting ring wall 4032 is arranged to be inclined in a direction away from the knob body 1, the connecting ring wall 4032 can not only apply a pressing force along the circumference of the knob to the rotating connection of the knob assembly to prevent the knob assembly from feeling loose during rotation, but also form a guide slope on the lower side of the knob decoration 403 (see FIG. Figure 7 and Fig.13 ), along the direction approaching the knob body 1, the guide slope is inclined downward, which can guide water to the bottom gap between the knob body 1 and the knob decorative part 403.

[0097] In one embodiment, the rotary connection structure 2 further includes a cylindrical portion and an arc-shaped support wall 204. The first end of the cylindrical portion is connected to the knob body 1, the guide groove 201 is formed on the cylindrical portion, and the hook 203 is connected to the second end of the cylindrical portion. The arc-shaped support wall 204 is connected to the second end of the cylindrical portion and is staggered with the hook 203, and the arc-shaped support wall 204 is suitable for abutting against the connecting ring wall 4032.

[0098] The arc-shaped support wall 204 matches the inner circumference of the annular wall, and can provide rotational support for the connecting annular wall 4032 to prevent the knob assembly from getting stuck during rotation. The hooks 203 and the arc-shaped support wall 204 are arranged alternately, so that the hooks 203 can axially limit the knob assembly, and the arc-shaped support wall 204 can provide rotational support for the knob assembly.

[0099] In one embodiment, an annular protrusion 4033 inclined toward the knob body 1 is formed on the knob decoration 403 . The annular protrusion 4033 is disposed around the outside of the knob installation opening 401 and abuts against the outer periphery of the knob body 1 .

[0100] The annular protrusion 4033 can guide water to flow onto the surface of the knob assembly, or to remain along the circumference of the annular protrusion 4033, reducing the risk of water flowing into the gap between the knob assembly and the housing 4, thereby further improving the waterproof performance of the food processor.

[0101] In summary, the knob assembly and food processor of the present invention can overcome the defect in the prior art that water can easily enter the gap between the knob assembly and the outer shell 4 of the food processor when in use, causing damage to the control panel or wiring of the food processor, or even causing electric shock to the user. It can prevent water from entering the outer shell 4 of the household appliance and guide the water that enters between the knob assembly and the outer shell 4, thereby improving the waterproof effect of the household appliance.

[0102] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the term "on" or the like is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0103] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0104] In this application, 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0105] The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician in the field can easily make changes or modifications within the technical scope disclosed in the present invention, and such changes or modifications should be included in the protection scope of the present invention.

[0106] Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. As long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A knob assembly, characterized in that: include: Knob body (1); A rotary connection structure (2), which is connected to one side of the knob body (1) and is suitable for being rotatably connected to a housing (4) of a household appliance; A flow guide structure is formed between the opposite surfaces of the knob assembly and the outer shell (4) and is arranged around the rotary connection structure (2), and is suitable for guiding water between the outer shell (4) and the knob assembly to flow out through the gap between the lower part of the knob assembly and the outer shell (4).

2. The knob assembly according to claim 1, characterized in that: The flow guiding structure comprises a flow guiding groove (201) formed on the outer periphery of the rotating connection structure (2) and arranged around the rotating connection structure (2).

3. The knob assembly according to claim 2, characterized in that: The flow guiding structure further comprises: The water retaining protrusion (3) is arranged on the outer periphery of the rotating connection structure (2) and surrounds the rotating connection structure (2); the guide groove (201) is formed between the water retaining protrusion (3) and the knob body (1).

4. The knob assembly according to claim 3, characterized in that: Along the direction away from the groove bottom of the guide groove (201), the side wall of the water retaining protrusion (3) close to the knob body (1) is inclined in the direction away from the knob body (1).

5. The knob assembly according to claim 3, characterized in that: The distance between the top of the water retaining protrusion (3) and the knob body (1) is d1,2mm≤d1≤2.8mm.

6. A food processor, characterized in that: include: A housing (4), wherein the housing (4) is provided with a knob installation opening (401); The knob assembly according to any one of claims 1 to 5, wherein the rotary connection structure (2) of the knob assembly passes through the knob mounting opening (401) and is rotationally connected to the housing (4).

7. The food processor according to claim 6, characterized in that: The flow-guiding structure further comprises a flow-guiding protrusion (4034), wherein the flow-guiding protrusion (4034) is formed on the knob body (1) and extends toward the housing (4); and / or, The flow guide protrusion (4034) is formed on the housing (4) and extends toward the knob body (1).

8. The food processor according to claim 7, characterized in that: The flow-guiding protrusion (4034) is formed on the housing (4), and a flow-through gap is formed between the flow-guiding protrusion (4034) and the knob body (1), wherein the width of the flow-through gap is 0.1 mm≤d2≤0.3 mm.

9. The food processor according to claim 7, characterized in that: In a direction approaching the knob body (1), the flow guide protrusion (4034) is inclined downward.

10. The food processor according to claim 9, characterized in that: The housing (4) comprises: A housing body (402) having an assembly opening (404) formed thereon; A knob decoration (403) is located at the assembly opening (404) and is detachably connected to the shell body (402); a knob assembly opening (404) is formed on the knob decoration (403); and the rotational connection structure (2) passes through the knob assembly opening (404) to be rotationally connected to the shell (4).

11. The food processor according to claim 10, characterized in that: A first water leakage opening (4031) is formed at the bottom of the knob decoration (403), and a second water leakage opening (4021) connected to the first water leakage opening (4031) is formed at the bottom of the housing (4).

12. The food processor according to claim 10, characterized in that: A connecting ring wall (4032) is formed in the middle of the knob decoration (403), and along the direction close to the axis of the knob body (1), the connecting ring wall (4032) is inclined toward a side away from the knob body (1), and the connecting ring wall (4032) is suitable for surrounding the knob installation opening (401), and the rotating connection structure (2) includes a hook (203), and the hook (203) is suitable for extending into the knob installation opening (401) and hooking the end of the connecting ring wall (4032).

13. The food processor according to claim 10, characterized in that: The knob decoration (403) is formed with an annular protrusion (4033) inclined in the direction of the knob body (1); the annular protrusion (4033) is arranged around the outside of the knob installation opening (401) and abuts against the outer periphery of the knob body (1).

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