Waterproof key structure and electronic equipment

Abstract

The utility model relates to the technical field of key switches, in particular to a waterproof key structure and electronic equipment, and the waterproof key structure comprises a first shell, a sealing ring, a second shell, a key shell, a sealing cover and a springback piece which are fastened and assembled; the first shell and the second shell form a first seal on the sealing ring, the first shell and the sealing cover form a second seal on the sealing ring, the key shell and the sealing cover form a third seal on the sealing ring, and the key shell and the sealing cover form a fourth seal on the sealing column; the springback piece is connected with the first shell piece and tightly presses the sealing cover, and the springback piece can springback the key shell. Four seals are formed on the first shell, the sealing ring, the second shell, the key shell and the sealing cover, so that the key structure has good waterproof and dustproof effects. The key shell can be made of a hard material, so that the cost is low; gluing for bonding is not needed, and aging and abrasion are not prone to occurring; and when the key is pressed, the sealing effect is better due to the increase of extrusion force.

Description

Technical Field

[0001] This utility model belongs to the field of push button switch technology, and in particular relates to a waterproof push button structure and electronic device. Background Technology

[0002] With the development of electronic product technology, buttons, as one of the important components of electronic products, have increasingly higher performance requirements, especially for their waterproof and sealing performance.

[0003] Currently, most electronic products with exposed buttons that require waterproofing and dustproofing use silicone adhesive to attach the buttons to the casing, or employ a two-color injection molding process to meet these requirements. These products are mostly made of soft rubber, which is relatively expensive. Furthermore, after prolonged use, the soft rubber is prone to aging and wear, causing the waterproof and dustproof function at the adhesive joint to fail.

[0004] Therefore, this utility model addresses the above-mentioned technical problems by providing a waterproof button structure. It adopts a hard rubber button design to create a waterproof and dustproof structure, which is low in cost and not prone to aging and failure, thus solving the problems of high cost and easy aging and failure. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a waterproof button structure, comprising:

[0006] A first housing component, wherein the first housing component is provided with a first through hole;

[0007] The second housing has a button hole and an outer edge. The outer edge has a mounting groove for mounting a sealing ring. The second housing is installed in the first through hole. The outer edge abuts against the inner side of the first housing. The first housing and the second housing press against each other to form a first seal on the sealing ring. The button hole has an inner step. The bottom surface of the second housing has a first protruding ring.

[0008] A button shell, the button shell being formed as a cover structure, the outer side of the button shell forming an outer step, the button shell being fitted into the button hole, the outer step being engaged with the inner step, the bottom surface of the button shell being flush with the bottom surface of the second shell member, the bottom surface of the button shell being provided with a second convex ring, and the inner bottom surface of the button shell being provided with a third convex ring.

[0009] A sealing cover, made of soft rubber material, includes a sealing ring and a sealing post connected to each other. The sealing cover is installed on the bottom of the button shell. The bottom surfaces of the first shell and the second shell abut against the sealing ring. The sealing post is accommodated in the cover of the button shell and abuts against the inner bottom surface of the button shell. The first convex ring is embedded in the surface of the sealing ring so that the first shell and the sealing cover form a second seal on the sealing ring. The second convex ring is embedded in the surface of the sealing ring so that the button shell and the sealing cover form a third seal on the sealing ring. The third convex ring is embedded in the top surface of the sealing post so that the button shell and the sealing cover form a fourth seal on the sealing post.

[0010] A spring-loaded component is installed below the sealing cover and securely connected to the first housing. The spring-loaded component presses against the sealing cover and abuts against the button housing, and the spring-loaded component can spring back the button housing.

[0011] Specifically, in the above technical solution, four seals are formed in the first housing, the sealing ring, the second housing, the button housing, and the sealing cover, giving the button structure excellent waterproof and dustproof performance. The button housing can be made of hard materials, which is low in cost; it does not require adhesive bonding, is not prone to aging and wear; and the sealing effect is even better when the button is pressed due to the increased pressure.

[0012] Optionally, the inner side of the first housing is provided with a plurality of mounting posts, the spring member is provided with a plurality of mounting ears, the mounting ears are formed with mounting holes, and screws pass through the mounting posts to fasten the mounting posts.

[0013] Optionally, a nesting groove is formed on the upper side of the mounting hole, and the mounting post is inserted into the nesting groove for installation.

[0014] Optionally, the side of the mounting ear is provided with a reinforcing rib, and the reinforcing rib, the mounting ear and the spring-loaded component are integrally formed.

[0015] Specifically, in the above technical solution, to achieve a tight connection between the spring-loaded component and the first housing, the spring-loaded component is provided with a mounting ear, which is fastened to the mounting post of the first housing by screws. This screw connection method is simple in structure, easy to assemble and disassemble, and helps reduce product costs. To facilitate the positioning and connection of the mounting post to the mounting hole, a nesting groove is provided on the upper side of the mounting hole. The mounting post is embedded in the nesting groove, which facilitates the assembly of the mounting post and the mounting hole, and the nesting groove also serves a positioning function. To improve the strength of the mounting ear, reinforcing ribs are provided on the side of the mounting ear. The integrally formed reinforcing ribs, mounting ear, and spring-loaded component have higher strength, ensuring that the spring-loaded component has sufficient pressure to press the sealing cover, so that the first, second, and third convex rings can remain embedded in the sealing cover, ensuring the sealing effect at each sealing position.

[0016] Optionally, the first housing is provided with a foolproof post on its inner side, the second housing is provided with a first foolproof hole, and the spring-loaded component is provided with a second foolproof hole. The first foolproof hole and the second foolproof hole are sequentially fitted into the foolproof post for installation.

[0017] Specifically, in the above technical solution, the first shell is assembled by setting anti-mistake posts, which pass through the first anti-mistake hole of the second shell and the second anti-mistake hole of the spring-loaded component in sequence. This makes product assembly convenient and fast, prevents assembly errors, improves assembly efficiency, and reduces product defect rate.

[0018] Optionally, the bottom surface of the second housing is provided with a positioning groove, and a positioning protrusion is formed on the outer surface of the button housing, the positioning protrusion being embedded in the positioning groove for installation.

[0019] Specifically, in the above technical solution, in order to facilitate the positioning and installation of the second shell and the button shell, a positioning groove is provided in the second shell and a positioning protrusion is provided in the button shell. During assembly, the button shell is snapped into the second shell, the outer step of the button shell engages with the inner step of the second shell, and the positioning protrusion is embedded in the positioning groove. The positioning protrusion and the positioning groove also restrict the relative rotation between the button shell and the second shell, thereby improving the overall integrity of the button structure.

[0020] Optionally, the spring-loaded component is provided with a spring-loaded arm and an actuating post, the actuating post is connected to the spring-loaded arm, the actuating post passes through the sealing post and abuts against the inner bottom surface of the button shell, and the spring-loaded arm can spring back the button shell.

[0021] Specifically, in the above technical solution, to achieve the spring-back function of the button shell, the spring-back component is equipped with a spring-back arm and an actuating post. The spring-back arm is hollowed out on the body of the spring-back component, and the actuating post is located in the middle of the spring-back component, connected to the spring-back arm, and the actuating post is flush with the button shell. When the button shell is pressed, the button shell moves axially, driving the actuating post, which also moves axially. The spring-back arm undergoes flexible deformation, generating a spring-back force. The actuating post can trigger the push-button electronic switch installed inside the product, thereby connecting the circuit. When the button shell is released, the actuating post rebounds under the spring-back force of the spring-back arm, lifting the button shell and allowing it to return to its original position. In particular, when the button shell is pressed, the compressive force on the third convex ring increases, and the embedding contact between the third convex ring and the sealing cap becomes tighter, thereby improving the sealing capability of the fourth seal.

[0022] Optionally, the sealing post is provided with a second through hole, and the actuating post is installed through the second through hole.

[0023] Optionally, the inner bottom surface of the button housing is provided with a positioning post, and the top surface of the actuation post is provided with a positioning hole, which is fitted into the positioning post for installation.

[0024] Specifically, in the above technical solution, in order to enable the actuating post to pass through the sealing cover and abut against the inner bottom surface of the button shell, a second through hole is provided on the sealing post for the actuating post to pass through. To facilitate the alignment and assembly of the actuating post and the button shell, a positioning post is provided on the inner bottom surface of the button shell, and a positioning hole is provided on the top surface of the actuating post. The positioning hole is fitted into the positioning post for positioning and installation, making assembly convenient, quick, and accurate.

[0025] Optionally, the spring arm includes a horizontal section, an arc section, and a vertical section. The horizontal section extends horizontally outward from the outer surface of the actuating post, and the vertical section extends from the body of the spring member toward the actuating post. The two ends of the arc section are respectively connected to the horizontal section and the vertical section.

[0026] Optionally, the length ratio of the vertical segment, the horizontal segment, and the arc segment is 1:2:3.

[0027] Specifically, in the above technical solution, to ensure that the actuating column has sufficient stroke to trigger the product's push-button electronic switch, the structure of the spring arm is formed by connecting a horizontal section, an arc section, and a vertical section. The flexible deformation of the spring arm is provided by the three connecting sections. To ensure that the spring arm can provide maximum rebound force and meet the stroke requirements of the actuating column, the length ratio of the vertical section, the horizontal section, and the arc section is 1:2:3.

[0028] In addition, this utility model also provides an electronic device that uses the above-mentioned waterproof button structure.

[0029] Specifically, in the above technical solution, the electronic device can be a speaker, washing machine, computer, or car center console, etc. The waterproof button structure forms four seals through the first shell, sealing ring, second shell, button shell, and sealing cover, giving the button structure excellent waterproof and dustproof performance. The button shell can be made of rigid materials, which is low in cost; it does not require adhesive bonding, is not prone to aging and wear; and the sealing effect is better when the button is pressed due to the increased pressure.

[0030] The technical solution of this utility model has the following advantages or beneficial effects:

[0031] The waterproof button structure provided by this utility model includes a first housing, a sealing ring, a second housing, a button shell, a sealing cover, and a spring-loaded component for fastening assembly. The first and second housings form a first seal on the sealing ring, the first housing and the sealing cover form a second seal on the sealing ring, the button shell and the sealing cover form a third seal on the sealing ring, and the button shell and the sealing cover form a fourth seal on the sealing post. The spring-loaded component connects to the first housing and presses against the sealing cover, and can spring back the button shell. By forming four seals on the first housing, sealing ring, second housing, button shell, and sealing cover, the button structure has excellent waterproof and dustproof performance. The button shell can be made of rigid materials, resulting in lower cost; it does not require adhesive bonding, is less prone to aging and wear; and the sealing effect is even better when the button is pressed due to increased pressure. Attached Figure Description

[0032] Embodiments of the present invention will be described more fully with reference to the accompanying drawings. However, the accompanying drawings are for illustration and explanation only and do not constitute a limitation on the scope of the present invention.

[0033] Figure 1 This is an exploded view of the waterproof button structure of this utility model;

[0034] Figure 2 This is a structural schematic diagram of the waterproof button structure of this utility model;

[0035] Figure 3 This is another exploded view of the waterproof button structure of this utility model;

[0036] Figure 4 This is a cross-sectional schematic diagram of the waterproof button structure of this utility model;

[0037] Figure 5 This is a schematic diagram of the button housing structure;

[0038] Figure 6 This is a schematic diagram of the second shell component;

[0039] Figure 7 This is a schematic diagram of the springback component.

[0040] Illustration:

[0041] 1. First housing component; 2. Sealing ring; 3. Second housing component; 4. Button housing; 5. Sealing cover; 6. Spring-loaded component; 7. First through hole; 8. Button hole; 9. Outer edge; 10. Mounting groove; 11. Inner step;

[0042] 12. First convex ring; 13. Outer step; 14. Second convex ring; 15. Third convex ring; 16. Sealing ring;

[0043] 17. Sealing post; 18. Mounting post; 19. Mounting ear; 20. Mounting hole; 21. Nesting groove; 22. Reinforcing rib; 23. Anti-foolproof post; 24. First anti-foolproof hole; 25. Second anti-foolproof hole; 26. Positioning groove;

[0044] 27. Positioning protrusion; 28. Springback arm; 29. ​​Actuating post; 30. Second through hole; 31. Positioning post; 32. Positioning hole; 33. Horizontal section; 34. Arc section; 35. Vertical section. Detailed Implementation

[0045] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many other different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0046] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0047] In the description of this utility model, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0048] In the description of this utility model, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0049] like Figure 1-7As shown, an embodiment of this utility model provides a waterproof button structure. The waterproof button structure includes a first housing 1, a sealing ring 2, a second housing 3, a button shell 4, a sealing cover 5, and a spring-loaded component 6, all fastened together. The first housing 1 and the second housing 3 form a first seal on the sealing ring 2; the first housing 1 and the sealing cover 5 form a second seal on the sealing ring 16; the button shell 4 and the sealing cover 5 form a third seal on the sealing ring 16; and the button shell 4 and the sealing cover 5 form a fourth seal on the sealing post 17. The spring-loaded component 6 connects to the first housing 1 and presses against the sealing cover 5, and the spring-loaded component 6 can spring back the button shell 4. By forming four seals on the first housing 1, the sealing ring 2, the second housing 3, the button shell 4, and the sealing cover 5, the button structure has a good waterproof and dustproof effect. The button shell 4 can be made of a hard material, which is low in cost; it does not require adhesive bonding, is not prone to aging and wear; and when the button shell 4 is pressed, the sealing effect on the fourth seal is better due to the increased pressure.

[0050] Further, in this embodiment, the first housing is provided with a first through hole 7. The second housing 3 is provided with a button hole 8, and the second housing 3 forms an outer extension edge 9. An installation groove 10 is provided on the outer extension edge 9, and a sealing ring 2 is installed in the installation groove 10. The second housing 3 is installed in the first through hole 7, and the outer extension edge 9 abuts against the inner side of the first housing 1. The first housing 1 and the second housing 3 press against each other to form the sealing ring 2, and the first housing 1 and the second housing 3 form a first seal on the sealing ring 2. The button hole 8 forms an inner step 11, and the bottom surface of the second housing is provided with a first protruding ring 12. The button housing 4 is formed as a cover structure, and the outer side of the button housing 4 forms an outer step 13. The button housing 4 is fitted into the button hole 8, and the outer step 13 is locked into the inner step 11. The bottom surface of the button housing 4 is flush with the bottom surface of the second housing 3, and the bottom surface of the button housing 4 is provided with a second protruding ring 14. The inner bottom surface of the button housing 4 is provided with a third protruding ring 15. The sealing cover 5 is made of soft rubber material and includes a sealing ring 16 and a sealing post 17 connected to each other. The sealing cover 5 is installed under the key shell 4. The bottom surfaces of the first shell 1 and the second shell 3 abut against the sealing ring 16. The sealing post 17 is accommodated in the cover of the key shell 4 and abuts against the inner bottom surface of the key shell 4. The first convex ring 12 is embedded in the surface of the sealing ring 16, so that the first shell 1 and the sealing cover 5 form a second seal on the sealing ring 16. The second convex ring 14 is embedded in the surface of the sealing ring 16, so that the key shell 4 and the sealing cover 5 form a third seal on the sealing ring 16. The third convex ring 15 is embedded in the top surface of the sealing post 17, so that the key shell 4 and the sealing cover 5 form a fourth seal on the sealing post 17. The spring-loaded member 6 is installed under the sealing cover 5 and is fastened to the first shell 1. The spring-loaded member 6 presses the sealing cover 5 and abuts against the key shell 4. The spring-loaded member 6 can spring back the key shell 4.

[0051] Specifically, the first housing 1 is typically the outer casing of an electronic device. The first housing 1 is made of a rigid material, such as aluminum or ABS plastic. In this embodiment, the first housing 1 is preferably made of ABS plastic, which has low manufacturing costs and helps reduce product costs. The second housing 3 is a sealing auxiliary component, also manifested as a decorative ring. The second housing 3 is also made of a rigid material, such as aluminum or ABS plastic. In this embodiment, the second housing 3 is preferably manufactured using a one-piece molding process with ABS plastic, which has low manufacturing costs and helps reduce product costs. A first through hole 7 is provided on the first housing 1 for mounting the second housing 3. The first through hole 7 is a circular through hole. The upper surface of the installed second housing 3 should be substantially flush with the outer surface of the first housing 1 to ensure the appearance quality of the product. The second housing 3 is positioned on the first housing 1 by providing an outer extension edge 9. The outer extension edge 9 of the second housing 3 is provided with a sealing groove, which is used to cooperate with the sealing ring 2 for installation. The sealing ring 2 is preferably an O-ring silicone sealing ring. The diameter of the sealing ring 2 is larger than the height of the sealing groove, so that the sealing ring 2 protrudes from the sealing groove when installed. When the second shell 3 is fastened to the first shell 1, the outer edge 9 of the second shell 3 abuts against the inner surface of the first shell 1, and the second shell 3 presses against the first shell 1. At this time, the sealing ring 2 is squeezed and deformed and fills the sealing groove, thereby forming a first seal on the sealing ring 2 to prevent water vapor or dust from entering the product from the inside of the first through hole 7, achieving the effect of waterproofing and dustproofing.

[0052] More specifically, in this embodiment, the second housing 3 is provided with a button hole 8, which is used to fit the button shell 4 for installation. Specifically, the button hole 8 is formed as a stepped hole, that is, an inner step 11 is formed on the inner side of the button hole 8; the button shell 4 is a cover structure, in the form of a stepped cylinder, that is, an outer step 13 is formed on the outer surface of the button shell 4. When the button shell 4 is assembled in the button hole 8, it is stopped by the outer step 13 on the inner step 11, so that the button shell 4 cannot completely penetrate the button hole 8. The bottom surface of the assembled button shell 4 is also flush with the bottom surface of the second housing 3. In this embodiment, the button shell 4 is usually manifested as a light-transmitting button in electronic products. The button shell 4 is made of transparent PC plastic in one piece and is laser-engraved after painting, which can improve the product quality. In order to achieve the overall waterproof and dustproof effect of the button structure, a first protruding ring 12 is provided on the bottom surface of the second shell 3, and a second protruding ring 14 is provided on the bottom surface of the button shell 4. The first protruding ring 12 and the second protruding ring 14 cooperate with the sealing cover 5 to form a second seal and a third seal, respectively.

[0053] More specifically, in this embodiment, the sealing cover 5 is made of silicone material. Of course, the sealing cover 5 can also be made of other soft materials such as rubber or PU, as long as it can achieve the structure of each convex ring embedding into the sealing cover 5. The sealing cover 5 has a circular cover structure, with a cylindrical protrusion formed on one side of the cover surface. That is, the sealing cover 5 includes a sealing ring 16 and a sealing post 17, with the sealing post 17 protruding to one side from the middle of the sealing ring 16. When the sealing cover 5 is installed, the sealing cover 5 is installed under the key shell 4, and the sealing post 17 is accommodated in the cover of the key shell 4 and abuts against the inner bottom surface of the key shell 4. The sealing cover 5 completely covers the key shell 4, and the sealing ring 16 extends towards the circumference of the second shell member 3, so that when the sealing cover 5 is pressed by the spring member 6, both the first convex ring 12 and the second convex ring 14 can contact and embed into the sealing ring 16. The first protruding ring 12 is embedded in the surface of the sealing ring 16, forming a second seal between the first housing 1 and the sealing cover 5 on the sealing ring 16. The second protruding ring 14 is embedded in the surface of the sealing ring 16, forming a third seal between the button housing 4 and the sealing cover 5 on the sealing ring 16. When the button housing 4 is pressed, the sealing cover 5 undergoes elastic deformation on the sealing ring 16, and the sealing post 17 moves axially along with the button housing 4. After the button housing 4 is released, the sealing cover 5 automatically resets.

[0054] More specifically, in this embodiment, to further improve the waterproof and dustproof effect of the button structure, a third convex ring 15 is provided on the inner bottom surface of the button shell 4. When the sealing post 17 is housed within the cover of the button shell 4, the top surface of the sealing post 17 abuts against the inner bottom surface of the cover of the button shell 4. When the spring-loaded member 6 presses the sealing cover 5 during installation, the sealing post 17 exerts a slight pressure on the button shell 4. At this time, the third convex ring 15 will slightly embed into the top surface of the sealing post 17, thereby forming a fourth seal between the button shell 4 and the sealing cover 5 on the sealing post 17. When the button shell 4 is pressed, the pressure exerted by the button shell 4 on the sealing post 17 increases, and the third convex ring 15 will embed even further into the top surface of the sealing post 17, thereby further improving the sealing effect of the fourth seal.

[0055] More specifically, in this embodiment, the spring-loaded component 6 is preferably made of PC plastic, which inherently possesses a certain degree of deformation capability. When the spring-loaded component 6 is fastened to the first housing 1 by screws, it simultaneously presses the sealing cover 5, the button housing 4, and the second housing 3 against the inside of the first housing 1. To allow the spring-loaded component 6 to spring back onto the button housing 4, one end of the spring-loaded component 6 also passes through the sealing cover 5 and abuts against the inner bottom surface of the button housing 4. When the button structure is installed on an electronic product, the other end of the spring-loaded component 6 will also be close to the electronic switch on the electronic product. When the button housing 4 is pressed, the spring-loaded component 6 can trigger the electronic switch, at which point the spring-loaded component 6 deforms and generates rebound stress; when the button housing 4 is released, the spring-loaded component 6 springs back onto the button housing 4 under the action of rebound stress.

[0056] Furthermore, in this embodiment, a plurality of mounting posts 18 are provided on the inner side of the first housing 1, and a plurality of mounting ears 19 are provided on the spring-loaded member 6. Mounting holes 20 are formed on the mounting ears 19, and screws pass through the mounting posts 18 to securely connect the mounting posts 18. A nesting groove 21 is formed on the upper side of the mounting hole 20, and the mounting posts 18 are inserted into the nesting groove 21 for installation. Reinforcing ribs 22 are provided on the side of the mounting ears 19, and the reinforcing ribs 22, the mounting ears 19 and the spring-loaded member 6 are integrally formed.

[0057] Specifically, in this embodiment, to achieve a tight connection between the spring-loaded component 6 and the first housing 1, the spring-loaded component 6 is provided with a mounting ear 19 and a mounting post 18 of the first housing 1, which are fastened together by screws, preferably self-tapping screws. The screw connection method is simple in structure, easy to assemble and disassemble, and helps reduce product costs. To facilitate the positioning and connection of the mounting post 18 to the mounting hole 20, a nesting groove 21 is provided on the upper side of the mounting hole 20. The mounting post 18 is embedded in the nesting groove 21, which facilitates the assembly of the mounting post 18 and the mounting hole 20. The nesting groove 21 also serves a positioning function. To improve the strength of the mounting ear 19, a reinforcing rib 22 is provided on the side of the mounting ear 19. The integrally formed reinforcing rib 22, mounting ear 19, and spring-loaded component 6 have higher strength, ensuring that the spring-loaded component 6 has sufficient pressure to press the sealing cover 5, so that the first convex ring 12, the second convex ring 14, and the third convex ring 15 can remain embedded in the sealing cover 5, ensuring the sealing effect at each sealing position.

[0058] Furthermore, in this embodiment, the inner side of the first housing 1 is provided with an anti-fool post 23, the second housing 3 is provided with a first anti-fool hole 24, and the spring-loaded member 6 is provided with a second anti-fool hole 25. The first anti-fool hole 24 and the second anti-fool hole 25 are sequentially fitted into the anti-fool post 23 for installation.

[0059] Specifically, in this embodiment, the first housing 1 is assembled by setting a foolproof post 23. The foolproof post 23 passes through the first foolproof hole 24 of the second housing 3 and the second foolproof hole 25 of the spring-loaded part 6 in sequence. The product is easy and quick to assemble, and the assembly is error-free, which improves the assembly efficiency and reduces the product defect rate.

[0060] Furthermore, in this embodiment, the bottom surface of the second housing 3 is provided with a positioning groove 26, and the outer surface of the button housing 4 is formed with a positioning protrusion 27, which is embedded in the positioning groove 26 for installation.

[0061] Specifically, in this embodiment, in order to facilitate the positioning and installation of the second shell 3 and the button shell 4, a positioning groove 26 is provided in the second shell 3 and a positioning protrusion 27 is provided in the button shell 4. During assembly, the button shell 4 is snapped into the second shell 3, the outer step 13 of the button shell 4 engages with the inner step 11 of the second shell 3, and the positioning protrusion 27 is embedded in the positioning groove 26. The positioning protrusion 27 and the positioning groove 26 also restrict the relative rotation between the button shell 4 and the second shell 3, thereby improving the overall integrity of the button structure.

[0062] Furthermore, in this embodiment, the spring member 6 is provided with a spring arm 28 and an actuating post 29. The actuating post 29 is connected to the spring arm 28. The actuating post 29 passes through the sealing post 17 and abuts against the inner bottom surface of the button shell 4. The spring arm 28 can spring back the button shell 4.

[0063] Specifically, in this embodiment, to achieve the spring-back function of the button shell 4, the spring-back component 6 is provided with a spring-back arm 28 and an actuating post 29. The spring-back arm 28 is hollowed out on the body of the spring-back component 6, and the actuating post 29 is located in the middle of the spring-back component 6. The actuating post 29 is connected to the spring-back arm 28 and is flush with the button shell 4. When the button shell 4 is pressed, the button shell 4 moves axially, driving the actuating post 29, which also moves axially. The spring-back arm 28 undergoes flexible deformation to generate a spring-back force. The actuating post 29 can trigger the push-button electronic switch installed inside the product, thereby connecting the circuit. When the button shell 4 is released, the actuating post 29 rebounds under the spring-back force of the spring-back arm 28, lifting the button shell 4 so that the button shell 4 can be reset. Specifically, when the button housing 4 is pressed, the compressive force on the third convex ring 15 increases, and the third convex ring 15 and the sealing cover 5 are more tightly embedded, thereby improving the sealing ability of the fourth seal.

[0064] Furthermore, in this embodiment, a second through hole 30 is provided on the sealing post 17, and the actuating post 29 is installed through the second through hole 30. A positioning post 31 is provided on the inner bottom surface of the button housing 4, and a positioning hole 32 is provided on the top surface of the actuating post 29, and the positioning hole 32 is fitted into the positioning post 31 for installation.

[0065] Specifically, in this embodiment, in order to enable the actuating post 29 to pass through the sealing cover 5 and abut against the inner bottom surface of the button shell 4, a second through hole 30 is provided on the sealing post 17 for the actuating post 29 to pass through. To facilitate the alignment and assembly of the actuating post 29 and the button shell 4, a positioning post 31 is provided on the inner bottom surface of the button shell 4, and a positioning hole 32 is provided on the top surface of the actuating post 29. The positioning hole 32 fits into the positioning post 31 for positioning and installation, making assembly convenient, quick, and accurate.

[0066] Furthermore, in this embodiment, the spring arm 28 includes a horizontal segment 33, an arc segment 34, and a vertical segment 35. The horizontal segment 33 extends horizontally outward from the outer surface of the actuating post 29, and the vertical segment 35 extends from the body of the spring member 6 toward the actuating post 29. The two ends of the arc segment 34 are respectively connected to the horizontal segment 33 and the vertical segment 35. The length ratio of the vertical segment 35, the horizontal segment 33, and the arc segment 34 is 1:2:3.

[0067] Specifically, in this embodiment, to ensure that the actuating post 29 has sufficient stroke to trigger the product's push-button electronic switch, the structure of the spring arm 28 is formed by connecting a horizontal segment 33, an arc segment 34, and a vertical segment 35. The flexible deformation of the spring arm 28 is provided by the three connecting segments. To ensure that the spring arm 28 can provide maximum rebound force and meet the stroke requirements of the actuating post 29, the length ratio of the vertical segment 35, the horizontal segment 33, and the arc segment 34 is 1:2:3.

[0068] The waterproof button structure of this utility model forms four seals through the first shell 1, sealing ring 2, second shell 3, button shell 4, and sealing cover 5, giving the button structure excellent waterproof and dustproof performance. The button shell 4 can be made of a rigid material, resulting in lower cost; it does not require adhesive bonding, is less prone to aging and wear; and the increased pressure when the button is pressed further enhances the sealing effect. When the rigid adhesive is exposed, there is no need for adhesive application or two-color injection molding, ensuring production consistency and saving costs.

[0069] Furthermore, the waterproof button structure of this utility model can be applied to electronic devices such as speakers, washing machines, computers, or car control panels. The waterproof button structure forms four seals through the first housing 1, sealing ring 2, second housing 3, button shell 4, and sealing cover 5, giving the button structure excellent waterproof and dustproof performance. The button shell 4 can be made of a rigid material, resulting in lower cost; it does not require adhesive bonding, is less prone to aging and wear; and the increased pressure when the button is pressed further enhances the sealing effect. When the rigid adhesive is exposed, there is no need for adhesive application or two-color injection molding, ensuring production consistency and saving costs.

[0070] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A waterproof key structure, characterized by, include: A first housing component, wherein the first housing component is provided with a first through hole; The second housing has a button hole and an outer edge. The outer edge has a mounting groove for mounting a sealing ring. The second housing is installed in the first through hole. The outer edge abuts against the inner side of the first housing. The first housing and the second housing press against each other to form a first seal on the sealing ring. The button hole has an inner step. The bottom surface of the second housing has a first protruding ring. A button shell, the button shell being formed as a cover structure, the outer side of the button shell forming an outer step, the button shell being fitted into the button hole, the outer step being engaged with the inner step, the bottom surface of the button shell being flush with the bottom surface of the second shell member, the bottom surface of the button shell being provided with a second convex ring, and the inner bottom surface of the button shell being provided with a third convex ring. A sealing cover, made of soft rubber material, includes a sealing ring and a sealing post connected to each other. The sealing cover is installed on the bottom of the button shell. The bottom surfaces of the first shell and the second shell abut against the sealing ring. The sealing post is accommodated in the cover of the button shell and abuts against the inner bottom surface of the button shell. The first convex ring is embedded in the surface of the sealing ring so that the first shell and the sealing cover form a second seal on the sealing ring. The second convex ring is embedded in the surface of the sealing ring so that the button shell and the sealing cover form a third seal on the sealing ring. The third convex ring is embedded in the top surface of the sealing post so that the button shell and the sealing cover form a fourth seal on the sealing post. A spring-loaded component is installed below the sealing cover and securely connected to the first housing. The spring-loaded component presses against the sealing cover and abuts against the button housing, and the spring-loaded component can spring back the button housing.

2. The waterproof key structure according to claim 1, wherein The first housing has a plurality of mounting posts on its inner side, and the spring-loaded component has a plurality of mounting ears with mounting holes formed thereon. Screws pass through the mounting posts to securely connect to the mounting posts.

3. The waterproof key structure according to claim 2, wherein A nesting groove is formed on the upper side of the mounting hole, and the mounting post is inserted into the nesting groove for installation.

4. The waterproof key structure according to claim 1, wherein The first housing has a foolproof post on its inner side, the second housing has a first foolproof hole, and the spring-loaded component has a second foolproof hole. The first foolproof hole and the second foolproof hole are sequentially fitted into the foolproof post for installation.

5. The waterproof key structure according to claim 1, wherein The bottom surface of the second housing is provided with a positioning groove, and a positioning protrusion is formed on the outer surface of the button housing. The positioning protrusion is embedded in the positioning groove for installation.

6. The waterproof key structure according to claim 1, wherein The spring-loaded component is provided with a spring-loaded arm and an actuating post. The actuating post is connected to the spring-loaded arm, passes through the sealing post and abuts against the inner bottom surface of the button shell, and the spring-loaded arm can spring back the button shell.

7. The waterproof key structure according to claim 6, wherein The inner bottom surface of the button housing is provided with a positioning post, and the top surface of the actuation post is provided with a positioning hole, which is fitted into the positioning post for installation.

8. The waterproof key structure according to claim 6, wherein The rebounding arm comprises a horizontal section, a circular arc section and a vertical section, the horizontal section extends horizontally and outwardly from the outer surface of the actuating column, the vertical section extends from the body of the rebounding member to the actuating column, and two ends of the circular arc section are connected to the horizontal section and the vertical section respectively.

9. The waterproof key structure according to claim 8, wherein The length ratio of the vertical section, the horizontal section and the circular arc section is 1:2:

3.

10. An electronic device, characterized by A waterproof key structure comprising any one of claims 1-9.

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