A waterproof key structure and a water-involved device

Abstract

The utility model discloses a waterproof key structure and wade equipment, waterproof key structure is used for installing on the shell of wade equipment, is provided with the mounting hole on the shell, waterproof key structure includes: key and flexible sealing element, and flexible sealing element sealed installation is on the mounting hole, is provided with the axle hole and the limiting slot of communication in the axle hole end on flexible sealing element, is provided with the axle portion and the limiting portion connected in the axle portion end on the key, and the axle portion is installed in the axle hole, and the limiting portion is installed in the limiting slot and forms the limiting cooperation. The utility model discloses through the limiting cooperation of flexible sealing element and key, and the limiting slot and key limiting portion form the self -locking structure, need not glue and can realize stable fixed, has eliminated the sticking solidification time and the operation dependence, has promoted the assembly efficiency, and the limiting cooperation has guaranteed the installation consistency, has reduced the scrap rate, has replaced the glue with the environmental protection material simultaneously, has given both sides to the sealing property and production cost control, has satisfied IPX7 waterproof requirement.

Description

Technical Field

[0001] This utility model relates to the field of daily necessities cleaning technology, and in particular to a waterproof button structure and a water-contaminated device. Background Technology

[0002] With the continuous upgrading of electronic product functions and the increasing demands of consumers for product quality, the waterproof performance of water-contact products such as electric toothbrushes and electric cleaning brushes has become a core design indicator. These products typically need to meet the IPX7 waterproof standard (meaning they can withstand short-term immersion under specific conditions) to ensure stable operation in humid or water-contact environments.

[0003] In the existing production process, the outer shell is first injection molded, followed by a second injection molding process to form a flexible rubber material, thus ensuring a tight connection and overall seal between the rubber material and the outer shell. However, because the buttons need to have a certain amount of movement, they cannot be directly fixed to the shell through structural design. Therefore, an adhesive process is usually used to bond the buttons to the flexible rubber structure.

[0004] Although adhesive bonding can achieve a sealing effect in the short term, it has significant technical drawbacks and production challenges:

[0005] The adhesive requires a long curing time, and the operation relies on manual control of the amount of adhesive used and the application location, resulting in a complex and time-consuming assembly process.

[0006] The use of adhesives involves chemicals that may pose potential risks to human health and the environment.

[0007] The quality of adhesive is easily affected by factors such as deviations in part dimensions and differences in operating techniques, resulting in unstable sealing effects and large fluctuations in product qualification rate;

[0008] If the adhesive fails or the assembly is faulty, the parts usually cannot be replaced individually and must be scrapped as a whole, which significantly increases production costs. Utility Model Content

[0009] The purpose of this invention is to provide a waterproof button structure and water-resistant equipment, aiming to solve the problems of low efficiency, high cost and environmental unfriendliness in the production of button adhesives for water-resistant products.

[0010] This utility model provides a waterproof button structure for installation on the outer casing of a water-contaminated device. The outer casing has a mounting hole. The waterproof button structure includes a button and a flexible seal. The flexible seal is sealed and installed in the mounting hole. The flexible seal has a shaft hole and a limiting groove communicating with the end of the shaft hole. The button has a shaft portion and a limiting portion connected to the end of the shaft portion. The shaft portion is installed in the shaft hole, and the limiting portion is installed in the limiting groove to form a limiting fit.

[0011] Furthermore, a first limiting surface is provided on the side of the shaft portion, and a second limiting surface is provided on the side of the shaft hole. The first limiting surface and the second limiting surface cooperate to restrict the rotation of the button relative to the flexible seal.

[0012] And / or, a third limiting surface is provided on the side of the limiting part, and a fourth limiting surface is provided on the side of the limiting groove. The third limiting surface and the fourth limiting surface cooperate to restrict the rotation of the button relative to the flexible seal.

[0013] Furthermore, the size of the limiting part is larger than the diameter of the shaft hole.

[0014] Furthermore, the limiting groove is not through-hole, and the size of the limiting groove matches that of the limiting part to restrict the button from moving up and down relative to the flexible seal.

[0015] Furthermore, the water-contacting device is provided with a push-button switch at the position corresponding to the mounting hole, the flexible seal is provided with an extension portion toward the push-button switch, and the shaft hole extends toward the extension portion.

[0016] Furthermore, the bottom edge of the limiting part is provided with rounded corners.

[0017] Furthermore, an annular groove is provided on the outer side of the mounting hole on the outer shell, and an annular protrusion is provided on one side of the flexible seal installed on the outer shell, the annular protrusion being embedded in the annular groove.

[0018] Furthermore, the annular groove is provided with a plurality of connecting holes at intervals, and the annular protrusion is provided with a plurality of mounting protrusions at intervals for corresponding installation within the plurality of connecting holes; or, the annular protrusion is provided with a plurality of connecting holes at intervals, and the annular groove is provided with a plurality of mounting protrusions at intervals for corresponding installation within the plurality of connecting holes.

[0019] Furthermore, the button includes: a button body, the shaft portion being fixedly connected to the button body, and the button body being fitted with the flexible sealing element;

[0020] At least one abutting protrusion is provided on the side of the button body near the flexible seal, or at least one abutting protrusion is provided on the side of the flexible seal near the button body.

[0021] This utility model embodiment also provides a water-related device, including: the above-described waterproof button structure.

[0022] This utility model discloses a waterproof button structure and a water-contaminated device. The waterproof button structure is installed on the outer shell of the water-contaminated device, and the outer shell has mounting holes. The waterproof button structure includes a button and a flexible seal. The flexible seal is sealed and installed in the mounting holes. The flexible seal has a shaft hole and a limiting groove communicating with the end of the shaft hole. The button has a shaft portion and a limiting portion connected to the end of the shaft portion. The shaft portion is installed in the shaft hole, and the limiting portion is installed in the limiting groove to form a limiting fit. This utility model achieves stable fixation without glue by limiting the fit between the flexible seal and the button, and the limiting groove and the limiting portion of the button form a self-locking structure. This eliminates the need for adhesive curing time and operational dependence, improves assembly efficiency, and avoids potential risks to human health and the environment from adhesive. The limiting fit ensures installation consistency, reduces scrap rate, balances sealing performance and production cost control, and meets the IPX7 waterproof requirement. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural diagram of the water-related equipment;

[0025] Figure 2 Exploded view of water-related equipment;

[0026] Figure 3 This is a schematic diagram of the outer shell structure;

[0027] Figure 4 A structural diagram of the button from a first-person perspective;

[0028] Figure 5 A first-view structural schematic diagram of a flexible seal;

[0029] Figure 6 This is a cross-sectional schematic diagram of a flexible seal.

[0030] Figure 7 This is a cross-sectional schematic diagram of the water-related equipment;

[0031] Figure 8 for Figure 3 A partial view of A in the middle;

[0032] Figure 9 A structural schematic diagram of a flexible seal from a second perspective;

[0033] Figure 10 A structural diagram of the button from a second-view perspective;

[0034] Explanation of the labels in the diagram:

[0035] 1. Outer shell; 11. Mounting hole; 12. Annular groove; 121. Connection hole;

[0036] 2. Button; 21. Shaft; 211. First limiting surface; 22. Limiting part; 221. Third limiting surface; 222. Rounded corner; 23. Button body; 231. Abutting protrusion; 232. Anti-slip groove;

[0037] 3. Flexible seal; 31. Shaft hole; 311. Second limiting surface; 32. Limiting groove; 321. Fourth limiting surface; 33. Extension; 34. Annular protrusion; 341. Mounting protrusion;

[0038] 4. Press the switch. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0040] It should be understood that, when used in this specification and the appended claims, the terms “comprising” and “including” indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0041] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0042] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0043] Please see Figure 1-7This embodiment provides a waterproof button structure for installation on the outer casing 1 of a water-contaminated device. The outer casing 1 has a mounting hole 11. The waterproof button structure includes a button 2 and a flexible seal 3. The flexible seal 3 is installed in the mounting hole 11. The flexible seal 3 has a shaft hole 31 and a limiting groove 32 communicating with the end of the shaft hole 31. The button 2 has a shaft portion 21 and a limiting portion 22 connected to the end of the shaft portion 21. The shaft portion 21 is installed in the shaft hole 31, and the limiting portion 22 is installed in the limiting groove 32 to form a limiting fit.

[0044] In this embodiment, the flexible sealing element 3 and the button 2 are matched in a limiting manner. The limiting groove 32 and the limiting part 22 of the button 2 form a self-locking structure, which can achieve stable fixation without glue. This eliminates the curing time and operational dependence of adhesive, improves assembly efficiency, and avoids potential risks to human health and the environment caused by glue. The limiting mechanism ensures installation consistency, reduces the scrap rate, balances sealing performance and production cost control, and meets the IPX7 waterproof requirement.

[0045] Please see Figure 4-6 In this embodiment, a first limiting surface 211 is provided on the side of the shaft portion 21, and a second limiting surface 311 is provided on the side of the shaft hole 31. The first limiting surface 211 and the second limiting surface 311 cooperate to restrict the button 2 from rotating relative to the flexible seal 3.

[0046] And / or, a third limiting surface 221 is provided on the side of the limiting part 22, and a fourth limiting surface 321 is provided on the side of the limiting groove 32. The third limiting surface 221 and the fourth limiting surface 321 cooperate to restrict the button 2 from rotating relative to the flexible seal 3.

[0047] By having the first limiting surface 211 of the shaft portion 21 cooperate with the second limiting surface 311 of the shaft hole 31, and the third limiting surface 221 of the limiting portion 22 cooperate with the fourth limiting surface 321 of the limiting groove 32, the rotation of the button 2 is restricted from two dimensions, so that the button 2 can only move in a predetermined direction (such as the axial direction), avoiding misalignment or functional failure of the button 2 due to rotation.

[0048] The limiting surface is usually a regular geometric surface (such as a plane or a stepped surface), which is easy to process and can be directly positioned during assembly, reducing the need for additional positioning parts (such as pins or clips) and lowering costs.

[0049] In this embodiment, one of each of the first limiting surface 211, the second limiting surface 311, the third limiting surface 221, and the fourth limiting surface 321 is provided, thereby forming a D-shaped structure between the button 2 and the shaft hole 31. In this embodiment, the first limiting surface 211 and the third limiting surface 221 form a continuous plane, and the second limiting surface 311 and the fourth limiting surface 321 form a continuous plane, in order to reduce the processing difficulty and improve the limiting effect, while also realizing a foolproof design.

[0050] Traditional circular shaft holes 31 can be installed arbitrarily at 360°, which can easily lead to misalignment of button 2 due to human negligence; while the D-shaped structure forcibly limits the installation angle to a single limiting surface, so that the function direction of button 2 strictly corresponds to the structural design.

[0051] It should be noted that mistake-proofing can also be achieved through other structural designs. For example, it can be achieved by creating two planes on a cylindrical structure to form an umbrella-like structure. Other mistake-proofing designs will not be discussed in detail here.

[0052] In some embodiments, multiple first limiting surfaces 211 and second limiting surfaces 311 may be provided, and multiple third limiting surfaces 221 and fourth limiting surfaces 321 may be provided.

[0053] A single limiting surface can only restrict rotation in one direction, while setting multiple limiting surfaces (such as 2 or 4 sets evenly distributed around the circumference) can form a "ring constraint", which restricts the rotation of button 2 from multiple angles at the same time, and controls the rotation error within a smaller range.

[0054] For example, if four first limiting surfaces 211 are provided around the shaft 21, and four second limiting surfaces 311 are provided in the shaft hole 31, the button 2 needs to overcome the constraints of the four sets of surfaces at the same time when it rotates, which significantly increases the rotation resistance and improves the accuracy.

[0055] In this embodiment, the size of the limiting part 22 is larger than the diameter of the shaft hole 31.

[0056] Specifically, the size of the limiting part 22 is designed to be slightly larger than the diameter of the shaft hole 31 to prevent the button 2 from falling out of the shaft hole 31, thereby enhancing the connection stability between the button 2 and the flexible seal 3. Specifically, the end of the shaft part 21 of the button 2 is provided with a limiting part 22, the outer diameter of which is larger than the inner diameter of the shaft hole 31 in the flexible seal 3 (e.g., the diameter of the shaft hole 31 is 2.0 mm, and the outer diameter of the limiting part 22 is 2.1-2.2 mm). After the limiting part 22 is inserted into the shaft hole 31, the shaft hole 31 undergoes material deformation (e.g., elastic compression of TPU / TPE) or slight plastic deformation, allowing the limiting part 22 to pass through the shaft hole 31 into the limiting groove 32.

[0057] In this embodiment, the limiting groove 32 and the limiting part 22 are in transition or interference fit.

[0058] The limiting groove 32 and the limiting part 22 achieve fixation and sealing through a transition fit or an interference fit. Specifically, the inner diameter of the limiting groove 32 in the flexible seal 3 is designed to be slightly smaller than or equal to the outer diameter of the limiting part 22 of the button 2 (e.g., the lateral length of the limiting groove 32 is 2.1 mm, and the lateral length of the limiting part 22 is 2.1-2.2 mm), forming a slight interference fit or a transition fit. When the limiting part 22 is inserted into the limiting groove 32, the material of the flexible seal 3 (e.g., TPU / TPE) generates a rebound force due to elastic compression, and the limiting part 22 is moved and positioned through material deformation.

[0059] This design replaces the adhesive process with mechanical interlocking caused by the dimensional difference, which not only ensures the axial stability of button 2, but also offsets the lateral wobble of button 2 during use through the elastic properties of the material, thereby improving the positioning performance of the overall structure.

[0060] In this embodiment, the limiting groove 32 is not through-hole set, and the size of the limiting groove 32 matches that of the limiting part 22 to restrict the button 2 from moving up and down relative to the flexible seal 3.

[0061] The limiting groove 32 is not a through-hole. The total depth of the limiting groove 32 and the shaft hole 31 is less than the total thickness of the flexible seal 3. The limiting groove 32 and the limiting part 22 of the button 2 form a longitudinal limiting fit through size matching to restrict the vertical movement of the button 2 relative to the flexible seal 3. Specifically, the bottom of the limiting groove 32 of the flexible seal 3 is connected to the shaft hole 31, but does not extend to the outer surface of the flexible seal 3. The inner diameter of the limiting groove 32 matches the outer diameter of the limiting part 22 of the button 2 (e.g., the longitudinal width of the limiting groove 32 is 2.1 mm, and the longitudinal width of the limiting part 22 is 2.1-2.2 mm), forming a slight interference or transition fit. After the limiting part 22 is inserted into the limiting groove 32, the material of the flexible seal 3 (e.g., TPU / TPE) generates a rebound force due to elastic compression, and the longitudinal positioning and fixation of the limiting part 22 is achieved through material deformation.

[0062] This design replaces adhesive bonding with a mechanical engagement created by the dimensional difference between the limiting groove 32 and the limiting part 22, ensuring the axial stability of the button 2 while using the elastic properties of the material to counteract the up-and-down movement of the button 2 during use, thus improving the overall sealing performance. The mating clearance between the limiting groove 32 and the limiting part 22 is controlled within the range of 0.05-0.2mm to ensure smooth assembly and sealing, preventing the flexible seal 3 from tearing or assembly failure due to excessive friction.

[0063] In this embodiment, a push-button switch 4 is provided at the position corresponding to the mounting hole 11 of the water-contacting equipment (e.g., Figure 7 As shown), the flexible seal 3 has an extension 33 facing the push switch 4 (as shown). Figure 5 As shown, the shaft hole 31 extends toward the extension 33.

[0064] A push-button switch 4 is provided at the mounting hole 11 of the outer casing 1 of the water-using equipment. A flexible seal 3 extends an extension 33 towards the push-button switch 4, contacting the push-button switch 4 and transmitting the pressing action of the button 2. The shaft hole 31 of the flexible seal 3 extends from the mounting hole 11 towards the extension 33, forming a channel communicating with the extension 33. This ensures that the shaft 21 of the button 2 can slide along the shaft hole 31 and ultimately trigger the push-button switch 4 through the extension 33. Specifically, the extension direction of the shaft hole 31 is consistent with the pressing direction of the button 2. A second limiting surface 311 is provided on the inner wall of the shaft hole 31 to ensure that the shaft 21 of the button 2 remains aligned with the push-button switch 4 during sliding, avoiding trigger failure due to misalignment. The cross-sectional dimension of the extension 33 is slightly larger than the diameter of the shaft hole 31. Its surface is integrally formed with the flexible seal 3 through a secondary injection molding process to enhance sealing and reduce material deformation during pressing. The push switch 4 is embedded inside the housing 1 and directly contacts the extension 33. The extension 33 of the flexible seal 3 maintains stable contact with the push switch 4 through elastic compression or material rebound force, ensuring the sensitivity and waterproof performance of the button 2. This design, through the synergistic effect of the extension 33 and the shaft hole 31, achieves precise linkage between the button 2 and the push switch 4, and meets the IPX7 waterproof requirement through the sealing structure of the flexible seal 3. At the same time, it eliminates the adhesive process, reducing production costs and scrap rate.

[0065] Furthermore, the shaft hole 31 is configured to correspond to the press switch 4. After the button 2 is installed on the flexible seal 3, the shaft 21 is configured to correspond to the press switch 4. At this time, the shaft 21 can accurately apply force to the press switch 4, ensuring the stability and reliability of the pressing action. When the button 2 is pressed, the flexible seal 3 will deform to adapt to the movement of the shaft 21, while preventing external dust, moisture, and other impurities from entering the area where the press switch 4 is located, thus protecting the normal operation of the press switch 4. Moreover, the corresponding configuration of the shaft 21 and the press switch 4 makes the operation of the button 2 more comfortable. The user only needs to press the button 2 lightly, and the shaft 21 can accurately trigger the press switch 4 to achieve the corresponding function. With the increase of usage, due to the buffering effect of the flexible seal 3, the wear between the shaft 21 and the press switch 4 will be greatly reduced, thereby extending the service life of the entire button 2 assembly. In addition, this corresponding configuration of the shaft hole 31 and the press switch 4 also facilitates assembly during the production process, improves production efficiency, and reduces production costs.

[0066] In this embodiment, the bottom edge of the limiting part 22 is provided with a rounded corner 222 (e.g., Figure 4 (As shown).

[0067] The bottom edge of the limiting part 22 is rounded 222 to reduce frictional resistance during button 2 assembly and prevent tearing of the flexible seal 3. Specifically, the end section of the limiting part 22 of the button 2 is composed of a rectangle and a rounded corner 222. The radius of the rounded corner 222 is designed to be 0.1-0.3mm, forming a smooth transition with the inner wall of the limiting groove 32 of the flexible seal 3. When the limiting part 22 is inserted into the limiting groove 32, the rounded corner 222 area first contacts the inner wall of the limiting groove 32, and gradually guides the limiting part 22 to be fully embedded in the bottom of the limiting groove 32 through elastic compression, avoiding material stress concentration or local fracture caused by direct contact of right-angled edges. This design optimizes the contact shape between the limiting part 22 and the flexible seal 3 through the rounded corner 222, which reduces frictional resistance during assembly and improves the durability of the sealing structure.

[0068] In this embodiment, an annular groove 12 is provided on the outer side of the mounting hole 11 on the outer shell 1 (e.g., ...). Figure 8 As shown), the flexible seal 3 is installed on one side of the housing 1 and has an annular protrusion 34 (as shown). Figure 5 and Figure 9 As shown, the annular protrusion 34 is embedded in the annular groove 12.

[0069] An annular groove 12 is provided on the outer side of the mounting hole 11 on the outer shell 1. An annular protrusion 34 is provided on one side of the flexible seal 3, and the annular protrusion 34 is embedded in the annular groove 12 to enhance the connection stability between the flexible seal 3 and the outer shell 1. Specifically, the annular groove 12 of the outer shell 1 is opened circumferentially along the mounting hole 11, and the groove depth matches the height of the annular protrusion 34 of the flexible seal 3 (e.g., the depth of the annular groove 12 is 0.5-1.0 mm, and the thickness of the annular protrusion 34 is 0.6-1.2 mm). Through a secondary injection molding process, the annular protrusion 34 of the flexible seal 3 and the annular groove 12 of the outer shell 1 form an interference fit or a tight fit. The annular protrusion 34 of the flexible seal 3 is made of thermoplastic polyurethane (TPU) or thermoplastic elastomer (TPE) material, and its outer surface and the inner wall of the annular groove 12 of the outer shell 1 are integrally molded by injection molding, avoiding reliance on adhesive processes. The outer shell 1 is injection molded from polycarbonate (PC), polypropylene (PP), or acrylonitrile-butadiene-styrene copolymer (ABS). This design replaces adhesive with mechanical interlocking, ensuring the long-term sealing performance of the flexible seal 3 and the outer shell 1, while improving assembly efficiency and consistency through a standardized structure. It also reduces the scrap rate of parts due to fluctuations in adhesive usage or operational differences, meeting the dual requirements of the IPX7 waterproof standard for water-contact products in terms of both sealing performance and production cost.

[0070] In this embodiment, a plurality of connecting holes 121 (e.g., ...) are provided at intervals on the annular groove 12. Figure 8 As shown), the annular protrusion 34 is provided with a plurality of mounting protrusions 341 at intervals for corresponding installation within a plurality of connecting holes 121 (e.g. Figure 5 and Figure 9 (as shown); or, the annular protrusion 34 is provided with a plurality of connecting holes 121 at intervals, and the annular groove 12 is provided with a plurality of mounting protrusions 341 at intervals for corresponding installation in the plurality of connecting holes 121.

[0071] An annular groove 12 is provided on the outer side of the mounting hole 11 on the outer shell 1. An annular protrusion 34 is provided on one side of the outer shell 1. The annular protrusion 34 is embedded in the annular groove 12, and the connection stability is further enhanced by the cooperation between the connecting hole 121 and the mounting protrusion 341. Specifically, in the first configuration, a number of connecting holes 121 (e.g., 3-6) are provided at intervals on the annular groove 12, and a number of mounting protrusions 341 are correspondingly provided on the annular protrusion 34 of the flexible seal 3. After the mounting protrusion 341 is inserted into the connecting hole 121, a mechanical engagement is formed to prevent relative displacement between the flexible seal 3 and the outer shell 1. In the second configuration, a number of connecting holes 121 are provided at intervals on the annular protrusion 34, and a number of mounting protrusions 341 are correspondingly provided on the annular groove 12 of the outer shell 1. The same effect is achieved after the mounting protrusion 341 is inserted into the connecting hole 121. Both configurations replace adhesive bonding with the interlocking connection of the connecting hole 121 and the mounting protrusion 341. This avoids assembly consistency issues caused by fluctuations in glue usage or operational differences, and improves production efficiency through standardized structure. The outer shell 1 is injection molded from polycarbonate (PC), polypropylene (PP), or acrylonitrile-butadiene-styrene copolymer (ABS). The annular protrusion 34 of the flexible seal 3 is made of thermoplastic polyurethane (TPU) or thermoplastic elastomer (TPE). The mating clearance between the connecting hole 121 and the mounting protrusion 341 is controlled within the range of 0.05-0.2mm to ensure smooth assembly and sealing. This design uses a secondary injection molding process to form an integral structure between the annular protrusion 34 of the flexible seal 3 and the annular groove 12 of the outer shell 1. At the same time, the interlocking connection of the connecting hole 121 and the mounting protrusion 341 further enhances the bonding strength between the two, meeting the sealing performance requirements of the IPX7 waterproof standard for water-related products, and significantly reducing the scrap rate of parts due to adhesive failure.

[0072] Please see Figure 4 In this embodiment, the button 2 includes: a button body 23, a shaft portion 21 fixedly connected to the button body 23, and the button body 23 being fitted with the flexible sealing member 3;

[0073] At least one abutting protrusion 231 is provided on the side of the button body 23 near the flexible seal 3, or at least one abutting protrusion 231 is provided on the side of the flexible seal 3 near the button body 23.

[0074] The button 2 includes a button body 23 and a shaft 21, which are fixedly connected to the button body 23. The button body 23 is fitted with the flexible seal 3. At least one abutting protrusion 231 is provided on the side of the button body 23 near the flexible seal 3, or at least one abutting protrusion 231 is provided on the side of the flexible seal 3 near the button body 23, to enhance the sealing and connection stability between the two. Specifically, the abutting protrusion 231 of the button body 23 can be designed as an annular rib or a dotted protrusion with a height of 0.1-0.3 mm. The surface of the protrusion is polished or textured to optimize the contact area with the flexible seal 3. When the flexible seal 3 is provided with the abutting protrusion 231, the protrusion material is thermoplastic polyurethane (TPU) or thermoplastic elastomer (TPE), which is directly molded onto the surface of the flexible seal 3 through a secondary injection molding process to abut against the button body 23. This design replaces adhesive bonding with the mechanical interlocking action of the abutting protrusion 231, ensuring a tight fit between the button body 23 and the flexible seal 3 during pressing, while also absorbing assembly stress through the elastic deformation characteristics of the protrusion, preventing seal failure or displacement caused by external forces. Furthermore, the shape of the abutting protrusion 231 can be rectangular, trapezoidal, arc-shaped, or irregular.

[0075] In this embodiment, please refer to Figure 10 An anti-slip groove 232 is provided on the side of the button body 23 away from the flexible seal 3. The anti-slip groove 232 is located on the surface of the button body 23, with a depth of 0.5mm and a width of 1mm. This size design ensures sufficient friction between the user's fingers and the button when operating it, without affecting the overall strength and aesthetics of the button due to excessive depth or width. When the user's finger presses on the button body 23, the anti-slip groove 232 effectively increases the contact area between the finger and the button surface, thereby improving friction and preventing slippage due to sweaty hands or uneven operating force, resulting in more precise and stable operation. Simultaneously, this anti-slip groove 232 also serves a certain indicator function, employing functional indicator patterns, such as power indicators, allowing users to confirm the button's function based on the pattern. Furthermore, the edges of the anti-slip groove 232 are chamfered to prevent scratches to the fingers during use. In addition, the anti-slip groove 232 at the edge of the button body 23 has an appropriate curved transition to better fit the pressing action of the fingers and further improve the user experience.

[0076] This embodiment also provides a water-related device, including the waterproof button structure described in the above embodiment.

[0077] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

[0078] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusivity.

[0079] The term "comprises" implies that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A waterproof button structure for mounting on the outer casing of a water-contaminated device, wherein the outer casing has mounting holes, characterized in that... The waterproof button structure includes: a button and a flexible seal. The flexible seal is sealed and installed on the mounting hole. The flexible seal is provided with a shaft hole and a limiting groove communicating with the end of the shaft hole. The button is provided with a shaft portion and a limiting portion connected to the end of the shaft portion. The shaft portion is installed in the shaft hole, and the limiting portion is installed in the limiting groove to form a limiting fit.

2. The waterproof button structure according to claim 1, characterized in that, A first limiting surface is provided on the side of the shaft portion, and a second limiting surface is provided on the side of the shaft hole. The first limiting surface and the second limiting surface cooperate to restrict the button from rotating relative to the flexible seal. And / or, a third limiting surface is provided on the side of the limiting part, and a fourth limiting surface is provided on the side of the limiting groove. The third limiting surface and the fourth limiting surface cooperate to restrict the rotation of the button relative to the flexible seal.

3. The waterproof button structure according to claim 1, characterized in that, The size of the limiting part is larger than the diameter of the shaft hole.

4. The waterproof button structure according to claim 3, characterized in that, The limiting groove is not through-hole set, and the size of the limiting groove matches that of the limiting part, so as to restrict the button from moving up and down relative to the flexible seal.

5. The waterproof button structure according to claim 1, characterized in that, The water-contacting device is provided with a push-button switch at the position corresponding to the mounting hole, the flexible seal is provided with an extension portion facing the push-button switch, and the shaft hole extends towards the extension portion.

6. The waterproof button structure according to claim 1, characterized in that, The bottom edge of the limiting part is rounded.

7. The waterproof button structure according to claim 1, characterized in that, An annular groove is provided on the outer side of the mounting hole on the outer shell, and an annular protrusion is provided on one side of the flexible seal installed on the outer shell, the annular protrusion being embedded in the annular groove.

8. The waterproof button structure according to claim 7, characterized in that, The annular groove is provided with a plurality of connecting holes at intervals, and the annular protrusion is provided with a plurality of mounting protrusions at intervals for corresponding installation within the plurality of connecting holes; or, the annular protrusion is provided with a plurality of connecting holes at intervals, and the annular groove is provided with a plurality of mounting protrusions at intervals for corresponding installation within the plurality of connecting holes.

9. The waterproof button structure according to claim 1, characterized in that, The button includes: a button body, the shaft portion being fixedly connected to the button body, and the button body being fitted with the flexible sealing element; At least one abutting protrusion is provided on the side of the button body near the flexible seal, or at least one abutting protrusion is provided on the side of the flexible seal near the button body.

10. A water-related device, characterized in that, include: The waterproof button structure as described in any one of claims 1-9.

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