Waterproof key

Abstract

The utility model relates to the technical field of waterproof keys, in particular to a waterproof key, and solves the problems that in the prior art, the number of parts is large, the assembly time is long, and the precision requirement of the parts is high. The keyboard is arranged on a shell, a containing cavity is formed in the shell, a through hole is formed in the bottom of the containing cavity, a supporting column which is inserted into and penetrates through the through hole is arranged in the containing cavity, a key is connected to the top of the supporting column, and a gasket is connected between the bottom end of the supporting column and the inner wall of the shell. The supporting column is sleeved with an elastic conical sleeve, and the conical sleeve blocks a gap between the supporting pipe and the through hole and abuts against the bottom of the key. The waterproof key provided by the scheme can meet the waterproof performance, can adapt to wider application scenes, and meets the use requirements of different electronic products. Meanwhile, the scheme has high flexibility in the aspects of structural design, material selection, connection modes and the like, and is convenient to optimize and customize according to actual application requirements.

Description

Technical Field

[0001] This utility model relates to the field of waterproof button technology, and specifically to a waterproof button. Background Technology

[0002] Water resistance is considered an important indicator in the design and manufacturing of existing electronic products, especially for devices used in outdoor or humid environments. Water resistance ratings of IPX6 or IPX7 are common standards. However, since buttons are moving parts in electronic devices, a gap needs to be maintained between them and the device casing to ensure normal button movement. This limits the water resistance of the button portion.

[0003] To address this issue, the industry currently employs dual-color molding technology, utilizing the elasticity and sealing properties of soft rubber materials to connect the buttons to the casing, thereby achieving a waterproof effect. However, dual-color molding is costly and may not be feasible under certain structural limitations. Therefore, finding a lower-cost waterproof button solution suitable for a wider range of device structures is particularly important.

[0004] Patent CN209895954U discloses a waterproof button structure that attempts to solve this problem. Its design includes components such as buttons, springs, O-rings, washers, and retaining rings. The combination of these components achieves both waterproofing and a good button feel. However, this solution has some drawbacks, such as a large number of parts, long assembly time, and high precision requirements for the parts. These factors can lead to increased costs and reduced production efficiency. Utility Model Content

[0005] Based on the above description, this utility model provides a waterproof button to solve the problems of a large number of parts, long assembly time, and high precision requirements of parts in the prior art.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A waterproof button is disposed on a housing. The housing has a receiving cavity with a through hole at the bottom. A support post is disposed in the receiving cavity and inserted into and passes through the through hole. The top of the support post is connected to the button. A gasket is connected between the bottom of the support post and the inner wall of the housing. An elastic conical sleeve is fitted on the support post. The conical sleeve blocks the gap between the support post and the through hole and abuts against the bottom of the button.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the conical sleeve includes an upper support portion, a middle blocking portion, and a lower waterproof portion. The support portion is cylindrical and maintains a gap with the support tube. The blocking portion is a cone shape that continuously moves towards the center from top to bottom, and its bottom abuts against the support column. The waterproof portion is cylindrical and abuts against the support column.

[0010] Furthermore, the top of the support column has several stops, and the bottom of the button is adapted to the shape of the support column.

[0011] Furthermore, the bottom of the support column is provided with an annular groove, and the gasket is engaged in the annular groove.

[0012] Furthermore, the gasket has an opening on one side, and three protrusions are formed inside the gasket to abut against the support column, and the outer side of the support portion forms an arc-shaped surface.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0014] Waterproofing: The conical sleeve effectively prevents moisture from entering the button area by blocking the gap between the support tube and the through hole, thus improving waterproofing. An annular groove is provided at the bottom of the support column, and the gasket engages within this groove, resulting in a tighter connection between the gasket and the support column and further enhancing waterproofing.

[0015] Simple structure: Compared with traditional waterproof button solutions, this solution has a simpler structure, reducing the number of parts, production costs, and assembly difficulty.

[0016] Excellent key feel: The tapered sleeve is elastic, providing a restoring force when the key is pressed, thus ensuring a good key feel. The spacer is also elastic, ensuring a good key feel. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of the outer shell and buttons provided by this utility model;

[0018] Figure 2 for Figure 1 A structural diagram from the bottom view;

[0019] Figure 3 for Figure 1 Internal cross-sectional view;

[0020] Figure 4 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0021] Figure 5 for Figure 4 Exploded view of the structure;

[0022] Figure 6for Figure 5 A diagram showing the bottom view.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Outer shell; 2. Receiving cavity; 3. Support column; 31. Stop; 32. Annular groove; 4. Button; 5. Gasket; 51. Protrusion; 6. Conical sleeve; 61. Support part; 62. Blocking part; 63. Waterproof part. Detailed Implementation

[0025] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0026] 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 application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0027] It is understood that spatial relation terms such as “below,” “under,” “below,” “below,” “above,” “above,” etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as “below,” “below,” or “below” will be oriented “above” the other element or feature. Therefore, the exemplary terms “below” and “under” can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0028] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0029] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0030] like Figure 1-6 A waterproof button 4 is shown, which is disposed on a housing 1. The housing 1 has a receiving cavity 2, and the bottom of the receiving cavity 2 has a through hole. A support column 3 is disposed in the receiving cavity 2 and inserted into and passes through the through hole. The top of the support column 3 is connected to the button 4. A gasket 5 is connected between the bottom end of the support column 3 and the inner wall of the housing 1. A flexible conical sleeve 6 is fitted on the support column 3. The conical sleeve 6 blocks the gap between the support tube and the through hole and abuts against the bottom of the button 4.

[0031] Button 4 can be made of different materials, such as plastic, silicone, or metal, to meet the appearance and feel requirements of different electronic products. Furthermore, the surface of button 4 can be surface-treated, such as by spraying, coating, or inlaying, to improve the product's aesthetics and durability. Pressing button 4 causes the support tube to move downwards within the through hole. The movement of button 4 and the support tube causes the conical sleeve 6 to move downwards. During this downward movement, the bottom of the conical sleeve 6 presses against the bottom wall of the receiving groove. The conical sleeve 6 deforms under pressure and provides elasticity for resetting.

[0032] In the aforementioned waterproof button 4, the conical sleeve 6 can be made of a material with good elasticity and sealing properties, such as silicone, rubber, or thermoplastic elastomer. The material selection for the conical sleeve 6 should take into account sealing performance, weather resistance, and chemical resistance to ensure the service life of the waterproof button 4 under various environmental conditions.

[0033] Specifically, the conical sleeve 6 includes an upper support portion 61, a middle blocking portion 62, and a lower waterproof portion 63. The support portion 61 is cylindrical and maintains a gap with the support tube. The blocking portion 62 is a cone shape that gradually converges towards the center from top to bottom, with its bottom abutting against the support column 3. The waterproof portion 63 is cylindrical and abuts against the support column 3. The support portion 61 mainly provides elastic support, while the blocking portion 62 and the waterproof portion 63 provide specific waterproofing. A waterproof layer is formed on the inner and outer surfaces of the blocking portion 62 and the waterproof portion 63, tightly sealing the gap between the support column 3 and the through hole. The waterproof portion 63 can also be inserted into the gap between the support column 3 and the through hole.

[0034] The connection between button 4 and support column 3 can be a threaded connection, a snap-fit ​​connection or other detachable connection method, so as to facilitate the replacement and maintenance of button 4. In a specific embodiment, the top of support column 3 has a plurality of stops 31, and the bottom of button 4 is adapted to the shape of support column 3.

[0035] The bottom of the support column 3 is provided with an annular groove 32, and the gasket 5 is engaged in the annular groove 32. In its natural state, the conical sleeve 6 is not under pressure, so the best waterproof effect is not achieved at the gap. In order to maintain a pressed state of the conical sleeve 6 without external force, the button 4 is pressed down to make the annular groove 32 of the support column 3 protrude from the through hole, and then the gasket 5 is engaged in the annular groove 32 to play a limiting role.

[0036] In this design, the gasket 5 has an opening on one side, and three protrusions 51 are formed inside the gasket 5 to abut against the support column 3. The outer side of the support part 61 has an arc-shaped surface. The arc-shaped surfaces of the three protrusions 51 can contact and fix with the cylindrical support column 3.

[0037] The waterproof button 4 in this solution not only meets waterproofing requirements but also adapts to a wider range of application scenarios, satisfying the needs of various electronic products. Furthermore, this solution offers high flexibility in structural design, material selection, and connection methods, facilitating optimization and customization according to specific application needs.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof button, disposed on a housing, characterized in that, The outer shell has a receiving cavity, and the bottom of the receiving cavity has a through hole. A support column is installed in the receiving cavity and inserted into and passes through the through hole. A button is connected to the top of the support column. A gasket is connected between the bottom of the support column and the inner wall of the outer shell. An elastic conical sleeve is fitted on the support column. The conical sleeve blocks the gap between the support tube and the through hole and abuts against the bottom of the button.

2. A waterproof button according to claim 1, characterized in that, The conical sleeve includes an upper support part, a middle blocking part, and a lower waterproof part. The support part is cylindrical and maintains a gap with the support tube. The blocking part is a cone shape that continuously moves from top to bottom towards the center, and its bottom abuts against the support column. The waterproof part is cylindrical and abuts against the support column.

3. A waterproof button according to claim 1, characterized in that, The top of the support column has several stops, and the bottom of the button is adapted to the shape of the support column.

4. A waterproof button according to claim 1, characterized in that, The bottom of the support column is provided with an annular groove, and the gasket is snapped into the annular groove.

5. A waterproof button according to claim 2, characterized in that, The gasket has an opening on one side, and three protrusions are formed inside the gasket to abut against the support column. The outer side of the support column forms an arc-shaped surface.

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