Knob screen assembly

Abstract

The embodiment of the application provides a knob screen assembly, relates to the technical field of knob screen, and comprises a base and a knob screen, the knob screen comprises a screen module, a screen support, a knob rotating ring and a water blocking structure, the knob rotating ring is rotatably arranged on the base, the knob rotating ring surrounds the screen support and is rotatable relative to the screen support, the screen module is arranged on the screen support, and the water blocking structure is arranged between the knob rotating ring and the base and / or between the knob rotating ring and the screen support. The knob screen assembly has the water blocking structure arranged between the knob rotating ring and the base and / or between the knob rotating ring and the screen support, so that the waterproof performance of the knob screen assembly is improved.

Description

Technical Field

[0001] This utility model relates to the field of rotary screen technology, and in particular to a rotary screen assembly. Background Technology

[0002] Currently, home appliances and vehicles are becoming increasingly intelligent. Rotary knob screens, combining traditional knobs with modern touchscreens, offer more interaction methods and are being used more widely to meet the demands of intelligent technology. However, in some applications, rotary knob screens may come into contact with water. Water entering the knob screen can affect its normal operation and pose a risk of control failure. Utility Model Content

[0003] The purpose of this application is to provide a rotary screen assembly with good waterproof performance and high operational reliability.

[0004] To achieve the above objectives, the embodiments of this disclosure provide the following technical solutions: A rotary screen assembly is provided, comprising: a base and a rotary screen, the rotary screen including a screen module, a screen bracket, a rotary ring, and a water-blocking structure, the rotary ring being rotatably disposed on the base, the rotary ring surrounding the screen bracket and being rotatable relative to the screen bracket, the screen module being disposed on the screen bracket, and the water-blocking structure being disposed between the rotary ring and the base, and / or between the rotary ring and the screen bracket.

[0005] In the above embodiments, by setting a water-blocking structure between the knob ring and the base and / or between the knob ring and the screen bracket, the waterproof performance of the knob screen assembly is improved, which helps to protect the electronic components inside the knob screen assembly, reduce the failure rate caused by water ingress, and improve the working reliability of the knob screen assembly.

[0006] In some embodiments, the base has a mounting hole, the knob ring includes a ring portion and a connecting portion, the ring portion surrounds the screen bracket, the connecting portion includes a rotating shaft passing through the mounting hole and a back plate connecting the rotating shaft and the ring portion, and the water-blocking structure includes a first water-blocking structure disposed between the connecting portion and the base.

[0007] In some embodiments, the first water-blocking structure includes a water-blocking wall and / or a first sealing ring. The water-blocking wall is disposed on the base, and the water-blocking wall is disposed opposite to the back plate and protrudes toward the back plate. The first sealing ring is assembled at the junction of the mounting hole and the rotating shaft.

[0008] In some embodiments, the water-retaining wall is formed as an annular structure around the mounting hole. There are multiple water-retaining walls arranged concentrically, and the water-retaining wall closer to the mounting hole in two adjacent water-retaining walls has a greater protrusion height.

[0009] In some embodiments, the base includes a first water-guiding wall disposed around the mounting hole, the first water-guiding wall extending obliquely in a direction away from the mounting hole toward a direction away from the back plate, and the water-blocking wall protruding from the first water-guiding wall toward the back plate.

[0010] In some embodiments, the back plate includes a second water-guiding wall disposed around the pivot, the second water-guiding wall being inclined in the same direction as the first water-guiding wall to form a water-blocking groove between the first water-guiding wall and the second water-guiding wall.

[0011] In some embodiments, the water-retaining wall is formed as an annular structure surrounding the mounting hole. The water-retaining wall is a plurality of concentric inner and outer water-retaining walls. The inner annular space of the inner water-retaining wall forms the mounting hole. The second water-guiding wall is formed as a stepped ring and includes an inner ring portion and an outer ring portion surrounding the inner ring portion. The outer ring portion protrudes relative to the inner ring portion toward the first water-guiding wall, and the end of the outer ring portion near the inner ring portion is opposite to the outer water-retaining wall along the axial direction of the knob screen. The first sealing ring is clamped between the second water-guiding wall and the inner water-retaining wall.

[0012] In some embodiments, at least one of the first water guide wall and the second water guide wall has a hydrophobic layer; or, the first water guide wall has an inclination angle of 12° to 45° relative to a plane perpendicular to the rotation axis of the knob screen; or, the edge of the second water guide wall away from the rotation axis is connected to the annular portion, and the end of the second water guide wall away from the rotation axis has a water leakage hole.

[0013] In some embodiments, the base has an inner side and an outer side on both sides of the mounting hole through direction, the annular portion is disposed on the outer side of the base, and the base further includes a third water guiding wall, the third water guiding wall is disposed around the first water guiding wall, and the third water guiding wall extends obliquely from the inner side of the base to the outer side of the base in the radial direction away from the mounting hole.

[0014] In some embodiments, the water-retaining wall includes an inner water-retaining wall, which is formed into an annular structure. The inner annular space of the inner water-retaining wall constitutes the mounting hole. The first sealing ring is sleeved on the inner water-retaining wall. The first sealing ring includes an outer sealing section, an inner sealing section, and a connecting section. The outer sealing section is located on the outer periphery of the inner water-retaining wall, the inner sealing section is located on the inner periphery of the inner water-retaining wall, and the connecting section is located between the inner water-retaining wall and the back plate, and connects the inner sealing section and the outer sealing section.

[0015] In some embodiments, the connecting segment has a first protruding ring on the side surface facing the back plate, the first protruding ring extending circumferentially along the first sealing ring and being one ring or multiple rings arranged concentrically; and / or, the inner sealing segment has a second protruding ring on the side surface facing the rotating shaft, the second protruding ring extending circumferentially along the first sealing ring and being one ring or multiple rings arranged axially along the mounting hole.

[0016] In some embodiments, the inner water-retaining wall is provided with a first anti-rotation structure, and a second anti-rotation structure that cooperates with the first anti-rotation structure is formed on the first sealing ring. There are multiple first anti-rotation structures and they are spaced apart along the circumference of the first sealing ring. The number of second anti-rotation structures is the same as that of the first anti-rotation structures and they correspond one-to-one. One of the first anti-rotation structure and the second anti-rotation structure is a protrusion and the other is a groove.

[0017] In some embodiments, the knob ring includes a ring portion and a connecting portion, the connecting portion is connected to the ring portion and includes a rotating shaft, the rotating shaft having a shaft hole, the screen bracket includes a support portion and an insertion portion, the support portion is disposed within the ring portion and carries the screen module, the insertion portion is connected to the support portion and extends into the shaft hole, and the water-blocking structure includes a second water-blocking structure disposed between the connecting portion and the screen bracket.

[0018] In some embodiments, the second water-blocking structure includes a second sealing ring, which is fitted at the mating point between the shaft hole and the insertion portion. An annular groove extending circumferentially along the shaft hole is formed on the insertion portion, and the second sealing ring is embedded in the annular groove.

[0019] In some embodiments, the rotary screen includes an encoder disposed within the base, the base having a mounting hole, the rotary ring including a ring portion and a connecting portion, the ring portion being disposed outside the base, the connecting portion being connected to the ring portion and including a rotating shaft passing through the mounting hole, the rotating shaft being connected to the rotating portion of the encoder, the rotating shaft having a shaft hole formed therein, the screen bracket including a support portion and an insertion portion, the support portion being disposed within the ring portion and supporting the screen module, the insertion portion being connected to the support portion and extending into the shaft hole and connected to the fixing portion of the encoder. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this application, the accompanying drawings used in some embodiments of this application will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size, etc., of the products involved in the embodiments of this application.

[0021] Figure 1 This is an exploded view of a knob screen assembly according to an embodiment of the present utility model; Figure 2 yes Figure 1 A cross-sectional view of the rotary screen assembly shown; Figure 3 yes Figure 2 A cross-sectional view of the knob ring shown; Figure 4 yes Figure 2 A cross-sectional view of the base shown; Figure 5 yes Figure 2 The diagram shows the rotary screen assembly with the encoder and circuit board hidden. Figure 6 yes Figure 5 A cross-sectional view of the first sealing ring mating with the inner retaining wall shown in the figure; Figure 7 yes Figure 6 A schematic diagram of the first sealing ring shown; Figure 8 yes Figure 6 A schematic diagram of another angle of the first sealing ring shown; Figure 9 yes Figure 1 A schematic diagram of the base shown; Figure 10 yes Figure 9 Enlarged view of point A shown; Figure 11 yes Figure 1The diagram shows a schematic of the screen bracket.

[0022] Figure label: Knob screen assembly 100; Base 10; Mounting hole 10a; First water guide wall 101; Third water guide wall 102; Knob screen 20; Rotation axis L; Axial axis Z; Screen module 1; Screen bracket 2; support part 21; insertion part 22; annular groove 22a; Knob ring 3; Ring part 31; Connecting part 32; Rotating shaft 321; Shaft hole 321a; Back plate 322; Second water guide wall 3221; Inner ring 32211; Outer ring 32212; Leakage hole 3221a; Water-blocking structure 4; First water-blocking structure 41; Water-retaining wall 411; Inner water-retaining wall 4111; First anti-rotation structure 41111; Outer water-retaining wall 4112; First sealing ring 412; outer sealing section 4121; connecting section 4122; first convex ring 41221; Inner sealing section 4123; second convex ring 41231; second anti-rotation structure 4124; Second water-blocking structure 42; Second sealing ring 421; Encoder 5; Rotating part 51; Fixed part 52; Circuit board 6; Water-blocking groove 30; hydrophobic layer 40. Detailed Implementation

[0023] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0024] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0025] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0026] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0027] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0028] The use of “applies to” or “configured to” in this article implies an open and inclusive language that does not preclude applicability to or configuration to devices that perform additional tasks or steps.

[0029] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0030] As used herein, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0031] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable deviation range, which is determined by those skilled in the art taking into account the measurement under discussion and the errors associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable deviation range for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable deviation range for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable deviation range for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0032] This document describes exemplary embodiments with reference to cross-sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and the area of ​​regions are enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as being limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. For example, etched areas shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the areas of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0033] Hereinafter, with reference to the accompanying drawings, a rotary screen assembly 100 according to an embodiment of the present invention will be described.

[0034] Reference Figure 1 and Figure 2 The knob screen assembly 100 includes a base 10 and a knob screen 20. The knob screen 20 includes a screen module 1, a screen bracket 2, a knob ring 3, and a water-blocking structure 4. The knob ring 3 is rotatably disposed on the base 10. The knob ring 3 surrounds the screen bracket 2 and is rotatable relative to the screen bracket 2. The screen module 1 is disposed on the screen bracket 2.

[0035] The application scenarios of the rotary screen assembly 100 are not limited. For example, the rotary screen assembly 100 can be applied to products with knobs, such as coffee machines, home appliances, projectors, and vehicle knobs. For example, the base 10 can be separate from the product panel and mounted on the panel 10, or the base 10 can be integrated with the product panel, that is, the panel can include the base 10 for mounting the rotary screen 20. The installation direction of the rotary screen assembly 100 is not limited. For example, the rotary screen assembly 100 can be set on a horizontal panel, a vertical panel, or an inclined panel.

[0036] The knob ring 3 refers to the part of the knob screen 20 that the user can directly touch and rotate. The user inputs operation commands by rotating the knob ring 3. The material of the knob ring 3 is not limited and can be metal or non-metal.

[0037] The screen module 1 can be a touchscreen, providing users with touch interaction functions to enable command input. The configuration of the screen module 1 is not limited, as long as it can realize touch command input functionality.

[0038] In the above technical solution, the rotary screen assembly 100 combines the screen module 1 with the rotary ring 3. This allows for rich information display and intuitive touch operation through the screen module 1, while also providing convenient physical rotation operation through the rotary ring 3. This combination meets the user's operational needs in different scenarios, including more complex operations. For example, function selection can be achieved by touching the screen module 1 or rotating the rotary ring 3, and real-time status and feedback information can be obtained through the screen display. Therefore, operation is more convenient, the feedback is more intuitive, and the user's interactive experience is improved.

[0039] In the above technical solution, the knob ring 3 surrounds the screen bracket 2 and is rotatable relative to the screen bracket 2, making the entire component structure more compact and realizing the integration of multiple functions. Compared with the traditional separate screen and knob design, it reduces the space occupied and is conducive to the miniaturization and thinning design of home appliances and other products.

[0040] Reference Figure 1 and Figure 2 The water-blocking structure 4 is disposed between the knob ring 3 and the base 10, and / or between the knob ring 3 and the screen support 2. That is, the water-blocking structure 4 can be disposed only between the knob ring 3 and the base 10; or, it can be disposed only between the knob ring 3 and the screen support 2; or, it can be disposed both between the knob ring 3 and the base 10 and between the knob ring 3 and the screen support 2. Or, to put it simply, the water-blocking structure 4 can be disposed between the knob ring 3 and the base 10, or between the knob ring 3 and the screen support 2, or both between the knob ring 3 and the base 10 and between the knob ring 3 and the screen support 2.

[0041] Among them, the water-blocking structure 4 refers to a structure that can block or obstruct the flow of water. For example, the water-blocking structure 4 can be a sealing element (such as an O-ring, lip seal, stuffing box, etc.) that completely blocks the flow of water, or a water-blocking element (such as a labyrinth seal, retaining wall, etc.) that changes the direction of water flow and increases the resistance of water flow through physical structure, thereby preventing water from entering.

[0042] The water-blocking structure 4 being positioned between the knob ring 3 and the base 10 can be interpreted broadly. For example, it could be a separate sealing element assembled between the knob ring 3 and the base 10, or it could be integrally formed on either the knob ring 3 or the base 10. For instance, the water-blocking structure 4 could be a water-blocking portion formed on the knob ring 3, located on the side of the knob ring 3 facing the base 10; or it could be a water-blocking portion formed on the base 10, located on the side of the base 10 facing the knob ring 3. Similarly, the water-blocking structure 4 being positioned between the knob ring 3 and the screen bracket 2 is also understood, but will not be elaborated further here.

[0043] A water-blocking structure 4 is disposed between the knob ring 3 and the base 10. The base 10, as the basic support part of the entire knob screen assembly 100, is usually connected to the external structure of the product and is easily exposed to moisture in the environment, such as water vapor and splashed liquids. Moisture can easily seep into the knob screen assembly 100 through the gap between the knob ring 3 and the base 10, thereby damaging the knob screen assembly 100. The water-blocking structure 4, disposed between the knob ring 3 and the base 10, blocks or hinders the water flow path between the base 10 and the knob ring 3, improves the waterproof performance of the knob screen assembly 100, protects the internal sensitive electronic components, such as the circuit connection of the screen module 1, reduces the possibility of short circuits, corrosion and other failures caused by water ingress, and extends the service life of the knob screen assembly 100.

[0044] The water-blocking structure 4 is disposed between the knob ring 3 and the screen bracket 2. Since the knob ring 3 surrounds the screen bracket 2 and can rotate relative to the screen bracket 2, there is a gap between the knob ring 3 and the screen bracket 2. Accidental splashes of water may enter the interior of the knob screen assembly 100 through the gap between the knob ring 3 and the screen bracket 2, thereby damaging the knob screen assembly 100. The water-blocking structure 4 is disposed between the knob ring 3 and the screen bracket 2, thereby blocking or hindering the water flow path between the knob ring 3 and the screen bracket 2, improving the waterproof performance of the knob screen assembly 100, and ensuring the normal display and stable operation of the screen module 1.

[0045] In the technical solution of this application, the water-blocking structure 4 is disposed between the knob ring 3 and the base 10, and / or between the knob ring 3 and the screen bracket 2. By disposing of the water-blocking structure 4 at least at one of these two locations, a single or double waterproof defense line can be formed, thereby improving the waterproof performance of the knob screen assembly 100, effectively protecting the electronic components inside the knob screen assembly 100, reducing the failure rate caused by water ingress, improving the working reliability of the knob screen assembly 100, and enabling the knob screen assembly 100 to maintain a stable working state during long-term operation, so that it can adapt to more complex and humid usage environments, such as the use scenarios of electrical equipment in kitchens, bathrooms, etc.

[0046] Reference Figure 2 In some embodiments, the base 10 has a mounting hole 10a, the knob ring 3 includes a ring portion 31 and a connecting portion 32, the ring portion 31 surrounds the screen bracket 2, the connecting portion 32 includes a rotating shaft 321 passing through the mounting hole 10a and a back plate 322 connecting the rotating shaft 321 and the ring portion 31, and the water-blocking structure 4 includes a first water-blocking structure 41 disposed between the connecting portion 32 and the base 10.

[0047] In the above technical solution, the first water-blocking structure 41 is located between the connecting part 32 and the base 10. This location is a critical part where the knob ring 3 moves relative to the base 10 and is at risk of water ingress. Since the connecting part 32 includes a rotating shaft 321 that passes through the mounting hole 10a, there must be a certain gap between the rotating shaft 321 and the mounting hole 10a to ensure smooth rotation of the knob ring 3. As a result, water can easily enter the knob screen assembly 100 through the gap, damaging the core rotating structure and electrical components. The first water-blocking structure 41 can block or hinder the water flow path formed by this gap, providing reliable waterproof protection for the internal components and extending the service life of the assembly.

[0048] In the embodiments of this application, the form of the first water-blocking structure 41 is not limited; exemplarily, refer to... Figure 2 In some embodiments, the first water-blocking structure 41 includes a first sealing ring 412, which is fitted at the junction of the mounting hole 10a and the rotating shaft 321.

[0049] In the above technical solution, the first sealing ring 412 is assembled at the mating point between the mounting hole 10a and the rotating shaft 321. The first sealing ring 412 can tightly fit the inner wall of the mounting hole 10a and the surface of the rotating shaft 321, preventing moisture, dust, and other impurities from entering the interior of the rotary screen assembly 100 and protecting the internal electronic components and mechanical structures from damage. Because the first sealing ring 412 has a certain degree of elasticity and flexibility, it can maintain close contact with the mounting hole 10a and the rotating shaft 321 throughout the rotation of the rotating shaft 321. Therefore, the first sealing ring 412 can both meet the functional requirements of normal rotation of the rotating shaft 321 and continuously provide a reliable waterproof seal, improving the reliability of the rotary screen 20.

[0050] For example, refer to Figure 2 , Figure 4 and Figure 5 In some embodiments, the first water-blocking structure 41 includes a water-blocking wall 411, which is disposed on the base 10. The water-blocking wall 411 is disposed opposite to the back plate 322 and protrudes toward the back plate 322.

[0051] In the above technical solution, the water-blocking wall 411 is disposed on the base 10 and protrudes towards the back plate 322, thereby forming a physical barrier in the gap between the back plate 322 and the base 10 (such as the water-blocking groove 30 described below). When water (such as splashing or spraying) rushes towards the knob screen assembly 100, the water-blocking wall 411 can block the water flow, so that most of the water flow is blocked outside the water-blocking wall 411, thereby effectively reducing the possibility of water entering the interior of the knob screen assembly 100.

[0052] Reference Figure 4 In some embodiments, the water-retaining wall 411 is formed as a ring structure surrounding the mounting hole 10a. Multiple water-retaining walls 411 are concentrically arranged, and the water-retaining wall 411 closer to the mounting hole 10a among two adjacent water-retaining walls 411 has a greater protrusion height. The protrusion height refers to the height of the water-retaining wall 411 relative to a reference plane along the rotation axis L of the knob screen 20. The reference plane is the plane located on the side of all water-retaining walls 411 away from the back plate 322 and perpendicular to the rotation axis L. For example, the water-retaining walls 411 shown in Figure 4 are multiple and include an inner water-retaining wall 4111 and an outer water-retaining wall 4112 arranged concentrically. The inner water-retaining wall 4111 is closer to the mounting hole 10a than the outer water-retaining wall 4112, and the protrusion height H2 of the inner water-retaining wall 4111 is greater than the protrusion height H1 of the outer water-retaining wall 41121.

[0053] In the above technical solution, the ring-shaped water barrier 411 can block water flow from all directions. No matter which direction the water flow enters, it can be effectively blocked, which improves the applicability and reliability of the knob screen assembly 100.

[0054] In the above technical solution, multiple concentrically arranged water-retaining walls 411 form a multi-layered waterproof protection. For example, when water intrudes, the outermost water-retaining wall 411 first blocks and buffers the intruding water. Even if some water flows past the outer water-retaining wall 411, and some water intrudes towards the mounting hole 10a, the protrusion height of the water-retaining wall 411 closer to the mounting hole 10a is greater, thereby further blocking and buffering the intruding water, thus forming multiple lines of defense to block water layer by layer.

[0055] For example, on the casing of an outdoor electronic device, during heavy rain, rainwater first impacts the outermost water barrier 411, where most of the rainwater is directly blocked and flows away along the water barrier 411. Only a small amount of rainwater may pass through the first line of defense, but the second and third water barriers 411 continue to function, ensuring that very little water ultimately reaches the mounting hole 10a, thus improving the device's waterproof performance.

[0056] Reference Figure 4 and Figure 5In some embodiments, the base 10 includes a first water guide wall 101 disposed around the mounting hole 10a. The first water guide wall 101 extends obliquely in a direction away from the mounting hole 10a and in a direction away from the back plate 322. The water barrier wall 411 protrudes from the first water guide wall 101 in a direction toward the back plate 322.

[0057] For example, the base 10 has an inner side and an outer side on both sides of the mounting hole 10a through direction, the annular portion 31 is located on the outer side of the base 10, the base 10 includes a first water guide wall 101, the first water guide wall 101 is disposed around the mounting hole 10a, the first water guide wall 101 extends obliquely in the radial direction away from the mounting hole 10a in the direction from the outer side of the base 10 to the inner side of the base 10, and the water retaining wall 411 protrudes from the first water guide wall 101 toward the outer side of the base 10.

[0058] In the above technical solution, the first water-guiding wall 101 is arranged around the mounting hole 10a and extends obliquely away from the back plate 322, thereby guiding the blocked water to flow along the first water-guiding wall 101, allowing the water to slide down its surface and away from the mounting hole 10a, reducing the accumulation of water around the mounting hole 10a and thus reducing the risk of water entering the mounting hole 10a; while the water-blocking wall 411 protrudes from the first water-guiding wall 101 towards the back plate 322, further enhancing the waterproof effect. Even if a small amount of water breaks through the guidance of the first water-guiding wall 101, the water-blocking wall 411 can still block the water flow and prevent it from directly entering the mounting hole 10a.

[0059] Reference Figure 3 and Figure 5 In some embodiments, the back plate 322 includes a second water guide wall 3221, which is disposed around the pivot 321. The second water guide wall 3221 is matched with the inclination direction of the first water guide wall 101 to form a water blocking groove 30 between the first water guide wall 101 and the second water guide wall 3221.

[0060] In the above technical solution, the second water-guiding wall 3221 is arranged around the rotating shaft 321 and matches the inclined direction of the first water-guiding wall 101, forming a water-blocking groove 30 between them. Thus, the water-blocking groove 30 extends inclinedly from the outside to the inside of the base 10 in a direction away from the mounting hole 10a, making it difficult for water to enter. Even if some water enters the water-blocking groove 30, it will be guided to flow along the first water-guiding wall 101, thereby moving away from the mounting hole 10a. Furthermore, the water-blocking groove 30 can also form a maze structure. For example, the water-blocking ribs of the first water-guiding wall 101 and the second water-guiding wall 3221 are staggered, further increasing the difficulty for water to enter the water-blocking groove 30.

[0061] Reference Figure 3 , Figure 4and Figure 5 In some embodiments, the water-blocking wall 411 is formed as an annular structure surrounding the mounting hole 10a. The water-blocking wall 411 is a plurality of concentric inner water-blocking walls 4111 and outer water-blocking walls 4112. The inner ring space of the inner water-blocking wall 4111 forms the mounting hole 10a. The second water-guiding wall 3221 is formed as a stepped ring and includes an inner ring portion 32211 and an outer ring portion 32212 surrounding the inner ring portion 32211. The outer ring portion 32212 protrudes relative to the inner ring portion 32211 toward the first water-guiding wall 101, and the end of the outer ring portion 32212 near the inner ring portion 32211 is opposite to the outer water-blocking wall 4112 along the axial direction Z of the knob screen 20. The first sealing ring 412 is sandwiched between the second water-guiding wall 3221 and the inner water-blocking wall 4111.

[0062] In the above technical solution, the outer ring portion 32212 protrudes towards the first water guide wall 101 relative to the inner ring portion 32211, and the end of the outer ring portion 32212 near the inner ring portion 32211 is opposite to the outer water barrier wall 4112 along the axial direction of the knob screen 20, which reduces the space of the water blocking groove 30 at this point, increases the tortuousness and difficulty of the water flow path, and makes it difficult for water to pass through this point and penetrate into the interior of the water blocking groove 30. The space near the mounting hole 10a of the water blocking groove 30 is relatively large, making it easy to install the first sealing ring 412, further improving the waterproof effect and effectively preventing the intrusion of water.

[0063] In the above technical solution, the water-retaining wall 411, the first water-guiding wall 101, the second water-guiding wall 3221, and the first sealing ring 412 are tightly fitted together to form a multi-layered waterproof and sealing structure. This effectively prevents moisture, dust, and other impurities from entering the knob screen 20, protecting the internal electronic components and mechanical structure from damage. This improves the reliability and stability of the product, especially in harsh environments such as humid and dusty conditions, ensuring the normal operation of the knob screen assembly 100 and reducing the probability of malfunctions.

[0064] Reference Figure 3 and Figure 4 In some embodiments, at least one of the first water-conducting wall 101 and the second water-conducting wall 3221 has a hydrophobic layer 40.

[0065] For example, the first water-guiding wall 101 may have a hydrophobic layer 40 coated on the surface near the water-blocking groove 30, and the second water-guiding wall 3221 may have a hydrophobic layer 40 coated on the surface near the water-blocking groove 30 or on the surface away from the water-blocking groove 30. Thus, water droplets are less likely to adhere to the first water-guiding wall 101 or the second water-guiding wall 3221. For example, accidental splashes of water may enter the interior of the knob screen assembly 100 through the gap between the knob ring 3 and the screen support 2. The water will quickly gather into droplets on the surface of the hydrophobic layer 40 of the second water-guiding wall 3221 and slide off rapidly. Combined with the drainage holes 3221a on the second water-guiding wall 3221, the water entering the knob ring 3 can be quickly drained, thus preventing water accumulation and moisture generation inside the knob ring 3, which would reduce the electrical reliability and display effect of the screen module 1.

[0066] For example, the base 10, as the basic support part 21 of the entire knob screen assembly 100, is usually connected to the external structure of the product and is easily exposed to moisture in the environment, such as water vapor and splashed liquid. Moisture can easily splash onto the first water guiding wall 101. The surfaces of the first water guiding wall 101 and the second water guiding wall 3221 near the water blocking groove 30 are coated with a hydrophobic layer 40, which allows water to quickly gather into water droplets on the surface of the hydrophobic layer 40 and slide off quickly, thus making it difficult for water to enter the interior of the knob screen assembly 100 through the gap between the mounting hole 10a and the rotating shaft 321 via the water blocking groove 30. Even if a small amount of moisture adheres, it will quickly detach under the action of gravity or slight vibration, further enhancing the waterproof effect.

[0067] For example, refer to Figure 4 In some embodiments, the first water guide wall 101 has an inclination angle α of 12° to 45° relative to the plane S perpendicular to the rotation axis L of the knob screen 20. As a result, due to gravity, water slides down the inclined surface of the first water guide wall 101 at a faster speed and is discharged, further reducing the residence time of water on the first water guide wall 101, thus making it less likely to enter the gap between the mounting hole 10a and the rotating shaft 321 and enter the interior of the knob screen assembly 100.

[0068] In some embodiments, refer to Figure 3 The edge of the second water guide wall 3221 away from the pivot 321 is connected to the ring portion 31, and the end of the second water guide wall 3221 away from the pivot 321 has a drainage hole 3221a. Thus, water entering the interior of the knob screen assembly 100 through the gap between the knob ring 3 and the screen support 2 can be discharged through the drainage hole 3221a on the second water guide wall 3221. Combined with the hydrophobic layer on the second water guide wall 3221, water is less likely to accumulate inside the knob ring 3, thus preventing the generation of water vapor inside the knob ring 3 and reducing the electrical reliability and display effect of the screen module 1.

[0069] Reference Figure 4 and Figure 5 In some embodiments, the base 10 has an inner side and an outer side on both sides of the mounting hole 10a through direction, and the annular portion 31 is provided on the outer side of the base 10. The base 10 also includes a third water guiding wall 102, which is disposed around the first water guiding wall 101. The third water guiding wall 102 extends obliquely from the inner side of the base 10 to the outer side of the base 10 in the radial direction away from the mounting hole 10a.

[0070] In the above technical solution, when the knob screen assembly 100 is installed vertically or at an angle, the third water guide wall 102 can continue the water guiding function of the first water guide wall 101, so that the intruded water flows out of the base 10 and does not accumulate at the connection between the third water guide wall 102 and the first water guide wall 101, thereby further improving the waterproof effect of the knob screen assembly 100.

[0071] Reference Figure 5 , Figure 6 and Figure 7 In some embodiments, the water-retaining wall 411 includes an inner water-retaining wall 4111, which is formed into an annular structure. The inner annular space of the inner water-retaining wall 4111 forms an installation hole 10a. A first sealing ring 412 is sleeved on the inner water-retaining wall 4111. The first sealing ring 412 includes an outer sealing section 4121, an inner sealing section 4123, and a connecting section 4122. The outer sealing section 4121 is located on the outer periphery of the inner water-retaining wall 4111, the inner sealing section 4123 is located on the inner periphery of the inner water-retaining wall 4111, and the connecting section 4122 is located between the inner water-retaining wall 4111 and the back plate 322, and connects the inner sealing section 4123 and the outer sealing section 4121.

[0072] In the above technical solution, the first sealing ring 412 includes an outer sealing section 4121, an inner sealing section 4123, and a connecting section 4122, forming a multi-layered sealing defense. The outer sealing section 4121 is located on the outer periphery of the inner water-retaining wall 4111, which can effectively block water from entering from the outside. The connecting section 4122 abuts against the surface of the second water-guiding wall 3221 or has a very small gap fit (meaning there is a very small gap between the connecting section 4122 and the second water-guiding wall 3221, but this gap is not enough to allow water or other substances to pass freely), preventing water from entering from the outside into the mounting hole 10a. The inner sealing section 4123 is located on the inner periphery of the inner water-retaining wall 4111, further sealing the area of ​​the mounting hole 10a, preventing water from penetrating into the inside of the knob screen assembly 100 through the mounting hole 10a, thereby improving the reliability of the waterproof seal of the first sealing ring 412.

[0073] In the above technical solution, the first sealing ring 412 is installed by sleeve on the inner water retaining wall 4111, which is simple and convenient to operate, and there is no need to set a separate structure on the base 10 to cooperate with the first sealing ring 412, thereby improving the compactness of the structure. If the first sealing ring 412 is damaged or aged during use and needs to be replaced, due to its sleeve installation method, the old sealing ring can be easily removed and a new sealing ring can be installed, which is convenient for maintenance and upkeep.

[0074] Reference Figure 6 and Figure 7 In some embodiments, the side surface of the connecting segment 4122 facing the back plate 322 is provided with a first protruding ring 41221. The first protruding ring 41221 extends circumferentially along the first sealing ring 412. The first protruding ring 41221 is a single ring or multiple rings arranged concentrically.

[0075] In the above technical solution, the first convex ring 41221 and the second water-guiding wall 3221 abut against or have a very small gap fit near the surface of the base 10, forming multiple waterproof barriers. Each ring of the first convex ring 41221 can independently block the penetration of water. Even if one ring fails due to minor defects caused by long-term use or external force, the other rings can still continue to perform the waterproof function, thereby improving the reliability and durability of the waterproof seal.

[0076] Reference Figure 6 and Figure 7 In some embodiments, the inner sealing section 4123 has a second protruding ring 41231 on the side surface facing the rotating shaft 321. The second protruding ring 41231 extends circumferentially along the first sealing ring 412. The second protruding ring 41231 is a single ring or multiple rings arranged axially along the mounting hole 10a.

[0077] In the above technical solution, the second convex ring 41231 is configured as multiple rings arranged axially along the mounting hole 10a, and each ring of the second convex ring 41231 can independently form a waterproof barrier. Even if one ring of the second convex ring 41231 wears or ages due to long-term use, the other rings can still continue to function, thereby effectively preventing moisture from entering the inside of the knob screen assembly 100 from between the inner sealing section 4123 and the rotating shaft 321, thus improving the reliability and durability of the seal.

[0078] Reference Figure 6 and Figure 7In some embodiments, the surface of the connecting section 4122 facing the back plate 322 is provided with a first protruding ring 41221, which extends circumferentially along the first sealing ring 412. The first protruding ring 41221 may be a single ring or multiple concentric rings. The surface of the inner sealing section 4123 facing the rotating shaft 321 is provided with a second protruding ring 41231, which extends circumferentially along the first sealing ring 412. The second protruding ring 41231 may be a single ring or multiple rings arranged axially along the mounting hole 10a. Therefore, the first sealing ring 412 has better waterproof performance, and the arrangement of multiple first protruding rings 41221 and second protruding rings 41231 can reduce the probability of failure of the first sealing ring 412. Furthermore, by adjusting parameters such as the material hardness of the first sealing ring 412, and the shape, height, width, spacing, and number of rings of the first convex ring 41221 and the second convex ring 41231, various waterproof protection levels can be met, thereby enabling the knob screen 20 to achieve different waterproof levels. For example, it can meet waterproof levels such as IPX4, IPX6, and IPX7 (IPX4, IPX6, and IPX7 are specific classifications of the waterproof capability of equipment in the IP waterproof rating standard (IEC 60529). The higher the number, the stronger the waterproof performance. For example, IPX4 can withstand daily splashes, IPX6 can withstand high-pressure washing, and IPX7 can withstand short-term immersion in water), thus meeting the usage scenarios of various users. Most of the other components of the knob screen assembly 100 are shared, thereby saving development costs.

[0079] Reference Figure 8 , Figure 9 and Figure 10 In some embodiments, the inner water-retaining wall 4111 is provided with a first anti-rotation structure 41111, and a second anti-rotation structure 4124 that cooperates with the first anti-rotation structure 41111 is formed on the first sealing ring 412. There are multiple first anti-rotation structures 41111 and they are spaced apart along the circumference of the first sealing ring 412. The number of second anti-rotation structures 4124 is the same as that of the first anti-rotation structures 41111 and they correspond one-to-one. One of the first anti-rotation structure 41111 and the second anti-rotation structure 4124 is a protrusion and the other is a groove.

[0080] The first sealing ring 412 is prone to friction with the rotating knob ring 3, which causes the first sealing ring 412 to rotate, resulting in misalignment of the first sealing ring 412 and thus damaging the original sealing interface, leading to sealing and waterproofing failure. In the above technical solution, the first anti-rotation structure 41111 on the inner water-retaining wall 4111 and the second anti-rotation structure 4124 on the first sealing ring 412 cooperate with each other. Through the interlocking action of the protrusion and the groove, the rotation of the first sealing ring 412 in the circumferential direction of the rotating shaft 321 can be effectively restricted, ensuring that the sealing ring maintains a stable position during operation and maintains good sealing performance.

[0081] In addition, there are multiple first anti-rotation structures 41111 and second anti-rotation structures 4124, which correspond one-to-one. They can play a positioning and guiding role during the assembly process, enabling installers to install the first sealing ring 412 onto the inner water retaining wall 4111 more accurately and quickly, thereby improving the accuracy and efficiency of the assembly.

[0082] Reference Figure 2 In some embodiments, the knob ring 3 includes a ring portion 31 and a connecting portion 32. The connecting portion 32 is connected to the ring portion 31 and includes a rotating shaft 321. A shaft hole 321a is formed in the rotating shaft 321. The screen bracket 2 includes a support portion 21 and an insertion portion 22. The support portion 21 is disposed in the ring portion 31 and carries the screen module 1. The insertion portion 22 is connected to the support portion 21 and extends into the shaft hole 321a. The water-blocking structure 4 includes a second water-blocking structure 42 disposed between the connecting portion 32 and the screen bracket 2.

[0083] In the above technical solution, a shaft hole 321a is formed in the rotating shaft 321 of the connecting part 32, and the insertion part 22 of the screen bracket 2 extends into the shaft hole 321a, so that the knob ring 3 and the screen bracket 2 can form a relative rotational connection. Since the knob ring 3 surrounds the screen bracket 2 and can rotate relative to the screen bracket 2, there is a gap between the ring part 31 and the screen bracket 2. Accidental splashing water may enter the interior of the knob screen assembly 100 through the gap between the ring part 31 and the screen bracket 2, and then damage the core rotating structure (such as the encoder 5 described below) and electrical components through the gap between the connecting part 32 and the screen bracket 2. The second water-blocking structure 42 provided in the water-blocking structure 4 is located between the connecting part 32 and the screen bracket 2, which can prevent water from entering the core rotating structure and the circuit board 6 located in the base 10 through the gap between the connecting part 32 and the screen bracket 2, thereby preventing water from damaging important components such as the screen module 1 and the circuit board 6, and extending the service life of the knob screen assembly 100.

[0084] Reference Figure 5 In some embodiments, the second water-blocking structure 42 includes a second sealing ring 421, which is fitted at the mating point between the shaft hole 321a and the insertion portion 22.

[0085] In the above technical solution, the second sealing ring 421 is fitted at the mating point between the shaft hole 321a and the insertion part 22, and can tightly fill the gap between them. This forms a reliable waterproof sealing barrier, preventing moisture from seeping into the base 10 from the mating point, protecting the core rotating structure (such as the encoder 5 described below) and electrical components from water corrosion, and reducing the risk of the knob screen assembly 100 malfunctioning due to water ingress.

[0086] Reference Figure 11In some embodiments, an annular groove 22a extending circumferentially along the shaft hole 321a is formed on the insertion part 22, and the second sealing ring 421 is embedded in the annular groove 22a.

[0087] In the above technical solution, the annular groove 22a provides an installation position for the second sealing ring 421, allowing the sealing ring to be securely embedded therein. When the insertion part 22 mates with the shaft hole 321a, since the sealing ring is confined within the annular groove 22a, it will not easily shift or fall off, thus ensuring the durability and reliability of the seal.

[0088] Reference Figure 1 and Figure 2 In some embodiments, the knob screen 20 includes an encoder 5, which is disposed within the base 10. The base 10 has a mounting hole 10a. The knob ring 3 includes a ring portion 31 and a connecting portion 32. The ring portion 31 is disposed outside the base 10. The connecting portion 32 is connected to the ring portion 31 and includes a rotating shaft 321 that passes through the mounting hole 10a. The rotating shaft 321 is connected to the rotating portion 51 of the encoder 5. A shaft hole 321a is formed inside the rotating shaft 321. The screen bracket 2 includes a support portion 21 and an insertion portion 22. The support portion 21 is disposed within the ring portion 31 and carries the screen module 1. The insertion portion 22 is connected to the support portion 21 and extends into the shaft hole 321a and is connected to the fixing portion 52 of the encoder 5.

[0089] In the above technical solution, the encoder 5 is installed inside the base 10, with its rotating part 51 connected to the rotating shaft 321 of the knob ring 3, and its fixed part 52 connected to the insertion part 22 of the screen bracket 2. When the user rotates the ring part 31 of the knob ring 3, the rotating shaft 321 rotates accordingly, thereby driving the rotating part 51 of the encoder 5 to rotate. The encoder 5 can detect motion parameters such as the rotation angle and speed of the rotating part 51 and input these signals to the circuit board 6. This allows the screen display content to be adjusted according to the user's knob operation, improving the accuracy and convenience of user operation.

[0090] In the above technical solution, the rotating shaft 321 of the knob ring 3 passes through the mounting hole 10a on the base 10, and the insertion part 22 of the screen bracket 2 extends into the shaft hole 321a inside the rotating shaft 321 and is connected to the fixing part 52 of the encoder 5. This multi-layer nested and connected structure makes the entire knob screen 20 very stable. The rotating shaft 321 is supported and constrained by the base 10 inside the mounting hole 10a, which can ensure the smoothness of the rotational movement; the cooperation between the insertion part 22 and the shaft hole 321a and the connection with the fixing part 52 of the encoder 5 further enhance the rigidity of the structure, reduce the possibility of the knob ring 3 shaking when rotating, and ensure the stable display of the screen module 1.

[0091] In the embodiments of this application, the knob screen 20 is not limited to the mechanical encoder with the form of the rotating part 51 and the fixed part 52 described above. For example, it can also be a photoelectric encoder, Hall effect encoder, capacitor encoder, vibration motor encoder, etc.

[0092] Other components of the rotary screen according to the embodiments of the present invention, such as the connection of the circuit board 6 and its operation, are known to those skilled in the art and will not be described in detail here.

[0093] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A rotary screen assembly, characterized in that, include: Base; A rotary screen includes a screen module, a screen bracket, a rotary ring, and a water-blocking structure. The rotary ring is rotatably mounted on the base and surrounds the screen bracket and is rotatable relative to the screen bracket. The screen module is mounted on the screen bracket, and the water-blocking structure is located between the rotary ring and the base, and / or between the rotary ring and the screen bracket.

2. The rotary screen assembly according to claim 1, characterized in that, The base has mounting holes, the knob ring includes a ring portion and a connecting portion, the ring portion surrounds the screen bracket, the connecting portion includes a rotating shaft passing through the mounting holes and a back plate connecting the rotating shaft and the ring portion, and the water-blocking structure includes a first water-blocking structure disposed between the connecting portion and the base.

3. The rotary screen assembly according to claim 2, characterized in that, The first water-blocking structure includes a water-blocking wall and / or a first sealing ring. The water-blocking wall is disposed on the base, and the water-blocking wall is disposed opposite to the back plate and protrudes toward the back plate. The first sealing ring is assembled at the junction of the mounting hole and the rotating shaft.

4. The rotary screen assembly according to claim 3, characterized in that, The water-retaining wall is formed as a ring structure around the mounting hole. There are multiple water-retaining walls arranged concentrically, and the water-retaining wall closer to the mounting hole in two adjacent water-retaining walls has a greater protrusion height.

5. The rotary screen assembly according to claim 3, characterized in that, The base includes a first water guide wall, which is disposed around the mounting hole. The first water guide wall extends obliquely in a direction away from the mounting hole and in a direction away from the back plate. The water barrier wall protrudes from the first water guide wall in a direction toward the back plate.

6. The rotary screen assembly according to claim 5, characterized in that, The back plate includes a second water-guiding wall, which is arranged around the pivot. The inclination direction of the second water-guiding wall matches that of the first water-guiding wall, so as to form a water-blocking groove between the first water-guiding wall and the second water-guiding wall.

7. The rotary screen assembly according to claim 6, characterized in that, The water-retaining wall is formed as an annular structure surrounding the mounting hole. The water-retaining wall is multiple and includes an inner water-retaining wall and an outer water-retaining wall arranged concentrically. The inner annular space of the inner water-retaining wall forms the mounting hole. The second water-guiding wall is formed as a stepped ring and includes an inner ring portion and an outer ring portion surrounding the inner ring portion. The outer ring portion protrudes relative to the inner ring portion toward the first water-guiding wall, and the end of the outer ring portion near the inner ring portion is opposite to the outer water-retaining wall along the axial direction of the knob screen. The first sealing ring is clamped between the second water-guiding wall and the inner water-retaining wall.

8. The rotary screen assembly according to claim 6, characterized in that, At least one of the first water-guiding wall and the second water-guiding wall has a hydrophobic layer; or, the first water-guiding wall has an inclination angle of 12° to 45° relative to a plane perpendicular to the rotation axis of the knob screen; or, the edge of the second water-guiding wall away from the rotation axis is connected to the annular portion, and the end of the second water-guiding wall away from the rotation axis has a water leakage hole.

9. The rotary screen assembly according to claim 5, characterized in that, The base has an inner side and an outer side on both sides of the mounting hole through direction, the annular portion is located on the outer side of the base, and the base also includes a third water guiding wall. The third water guiding wall is arranged around the first water guiding wall and extends obliquely from the inner side of the base to the outer side of the base in the radial direction away from the mounting hole.

10. The rotary screen assembly according to claim 3, characterized in that, The water-retaining wall includes an inner water-retaining wall, which is formed into a ring structure. The inner ring space of the inner water-retaining wall constitutes the mounting hole. The first sealing ring is sleeved on the inner water-retaining wall. The first sealing ring includes an outer sealing section, an inner sealing section, and a connecting section. The outer sealing section is located on the outer periphery of the inner water-retaining wall, the inner sealing section is located on the inner periphery of the inner water-retaining wall, and the connecting section is located between the inner water-retaining wall and the back plate, and connects the inner sealing section and the outer sealing section.

11. The rotary screen assembly according to claim 10, characterized in that, The connecting section has a first protruding ring on the side surface facing the back plate. The first protruding ring extends circumferentially along the first sealing ring and is one ring or multiple rings arranged concentrically. And / or, the inner sealing section has a second protruding ring on the side surface facing the rotating shaft, the second protruding ring extending circumferentially along the first sealing ring, and is one ring or multiple rings arranged axially along the mounting hole.

12. The rotary screen assembly according to claim 10, characterized in that, The inner water-retaining wall is provided with a first anti-rotation structure, and a second anti-rotation structure is formed on the first sealing ring to cooperate with the first anti-rotation structure. There are multiple first anti-rotation structures and they are spaced apart along the circumference of the first sealing ring. The number of second anti-rotation structures is the same as that of the first anti-rotation structures and they correspond one-to-one. One of the first anti-rotation structure and the second anti-rotation structure is a protrusion and the other is a groove.

13. The rotary screen assembly according to claim 1, characterized in that, The knob ring includes a ring portion and a connecting portion. The connecting portion is connected to the ring portion and includes a rotating shaft. A shaft hole is formed in the rotating shaft. The screen bracket includes a support portion and an insertion portion. The support portion is disposed in the ring portion and carries the screen module. The insertion portion is connected to the support portion and extends into the shaft hole. The water-blocking structure includes a second water-blocking structure disposed between the connecting portion and the screen bracket.

14. The rotary screen assembly according to claim 13, characterized in that, The second water-blocking structure includes a second sealing ring, which is fitted at the mating point between the shaft hole and the insertion part. An annular groove extending circumferentially along the shaft hole is formed on the insertion part, and the second sealing ring is embedded in the annular groove.

15. The rotary screen assembly according to claim 1, characterized in that, The rotary screen includes an encoder disposed within the base, on which a mounting hole is formed. The rotary ring includes a ring portion and a connecting portion. The ring portion is disposed outside the base. The connecting portion is connected to the ring portion and includes a rotating shaft passing through the mounting hole. The rotating shaft is connected to the rotating portion of the encoder, and a shaft hole is formed within the rotating shaft. The screen bracket includes a support portion and an insertion portion. The support portion is disposed within the ring portion and supports the screen module. The insertion portion is connected to the support portion and extends into the shaft hole and is connected to the fixing portion of the encoder.

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