Stepped waterproof and dustproof structure

By forming a stepped sealing structure between the upper and lower cover of the mobile phone and filling it with waterproof self-adhesive adhesive, the problem of weakening of the sealing of the waterproof gasket in the prior art is solved, and the high-reliability IP68 waterproof effect is achieved, and the equipment life is extended And reduce maintenance costs.

CN222301852UActive Publication Date: 2025-01-03SHANGHAI DAOQI IND DEV CO LTD
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Patent Information

Application Number
CN202421086624.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-19
Publication Date
2025-01-03
Estimated Expiration
2034-05-19

AI Technical Summary

Technical Problem

In the existing mobile phone waterproof design, the sealing properties of the waterproof gasket gradually weakens after long-term use, resulting in water inlet of the equipment, high maintenance costs and low reliability.

Method used

Adopting a stepped waterproof and dust-proof structure, by opening a first sealing groove and a second sealing groove on the top of the lower cover, a first sealing sheet and a second sealing sheet are provided at the bottom of the upper cover, forming a stepped sealing structure and in the sealing groove. Fill in waterproof self-adhesive to ensure the highest level of IP68 waterproofing standards.

Benefits of technology

Improves waterproof reliability, prevents self-adhesive stickers from overflowing into the product, extends the service life of the equipment and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222301852U_ABST
Patent Text Reader

Abstract

The utility model discloses a stepped waterproof and dustproof structure, which comprises a lower cover and an upper cover, and is characterized in that a first sealing groove and a second sealing groove are arranged at the top of the lower cover, a first sealing sheet and a second sealing sheet are arranged at corresponding positions at the bottom of the upper cover, and the first sealing groove and the second sealing groove are stepped; the first sealing piece and the second sealing piece are in a step shape, when the upper cover and the lower cover are connected, the first sealing piece is embedded into the first sealing groove, the second sealing piece is embedded into the second sealing groove, a step-shaped sealing structure is formed, the first sealing groove and the second sealing groove are filled with waterproof adhesive stickers, the waterproof reliability is high, and the step-shaped structure and the adhesive stickers are combined, so that the sealing effect is good. The highest grade IP68 can be reached, and the step type design can effectively prevent the adhesive sticker from overflowing into the product.
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Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone production and processing, in particular to a stepped waterproof and dustproof structure. Background Art

[0002] Mobile phones, also known as mobile phones or wireless phones, are usually called mobile phones. They were originally just a communication tool. In the early days, they were also commonly known as "big brothers" [1]. They are portable telephone terminals that can be used in a wide range. They were first developed from the battlefield mobile phones manufactured by Bell Laboratories in the United States in 1940. In 1958, Soviet engineer Leonid Kupriyanovich invented the ЛК-1 mobile phone. In 1973, American Motorola engineer Martin Cooper invented the world's first commercial mobile phone.

[0003] Most of the current mobile phone waterproof designs use waterproof gaskets. The waterproofness of the gasket must take into account the gasket's service life, lifespan, maintenance cost, and low reliability. During long-term use, the sealing of the waterproof gasket will gradually weaken, causing water to enter the device and causing equipment damage. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems and / or the problems existing in the existing stepped waterproof and dustproof structure, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a stepped waterproof and dustproof structure, by opening a first sealing groove and a second sealing groove on the top of the lower cover, and arranging a first sealing sheet and a second sealing sheet at corresponding positions on the bottom of the upper cover, the first sealing groove and the second sealing groove are stepped, and the first sealing sheet and the second sealing sheet are stepped. When the upper cover and the lower cover are connected, the first sealing sheet is embedded in the first sealing groove, and the second sealing sheet is embedded in the second sealing groove to form a stepped sealing structure, and waterproof adhesive is filled in the first sealing groove and the second sealing groove. The waterproof reliability is high, and the stepped structure and the adhesive combination can reach the highest level IP68, and the stepped design can effectively prevent the adhesive from overflowing into the product.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A stepped waterproof and dustproof structure, comprising:

[0009] A lower cover, wherein a first sealing groove is formed on the top of the lower cover, a second sealing groove is formed on the inner wall of the first sealing groove, and a height of the second sealing groove is lower than a height of the first sealing groove;

[0010] The upper cover is located on the top of the lower cover, a first sealing sheet is installed at a position corresponding to the first sealing groove at the bottom of the upper cover, a second sealing sheet is installed at a position corresponding to the second sealing groove at the bottom of the upper cover, the first sealing sheet is embedded in the first sealing groove, and the second sealing sheet is embedded in the second sealing groove.

[0011] As a preferred solution of the stepped waterproof and dustproof structure described in the utility model, a limiting plate is installed on the side wall of the lower cover, and a limiting hole is provided on the side wall of the limiting plate.

[0012] As a preferred solution of the stepped waterproof and dustproof structure described in the utility model, it also includes a limit assembly, which includes a fixed frame installed on the side wall of the upper cover, a slide plate slidably connected to the inside of the fixed frame and a spring installed on the side wall of the slide plate, a guide groove is opened at the bottom of the fixed frame, an L-shaped limit rod is installed at the bottom of the slide plate, and the L-shaped limit rod extends through the guide groove.

[0013] As a preferred solution of the stepped waterproof and dustproof structure described in the utility model, a fixing plate is installed on the side wall of the lower cover, a knob is rotatably connected to the side wall of the fixing plate, and a reciprocating threaded rod is installed on the side wall of the knob.

[0014] As a preferred solution of the stepped waterproof and dustproof structure described in the utility model, it also includes a glue injection component, which includes a pressure tube installed on the side wall of the lower cover and a piston located inside the pressure tube, a fixing rod is installed on the side wall of the piston, a reciprocating threaded hole is opened at the side end of the fixing rod, and the reciprocating threaded rod rotates and extends into the reciprocating threaded hole.

[0015] As a preferred solution of the stepped waterproof and dustproof structure described in the utility model, a glue injection tube is installed on the side wall of the pressure tube, the other end of the glue injection tube extends into the first sealing groove, the glue injection tube body is installed with a first one-way valve, and a glue delivery tube is installed on the side wall of the pressure tube, and the glue delivery tube body is installed with a second one-way valve.

[0016] Compared with the prior art: by opening the first sealing groove and the second sealing groove on the top of the lower cover, the first sealing sheet and the second sealing sheet are arranged at the corresponding positions on the bottom of the upper cover, the first sealing groove and the second sealing groove are stepped, and the first sealing sheet and the second sealing sheet are stepped. When the upper cover and the lower cover are connected, the first sealing sheet is embedded in the first sealing groove, and the second sealing sheet is embedded in the second sealing groove to form a stepped sealing structure. The first sealing groove and the second sealing groove are filled with waterproof adhesive, and the waterproof reliability is high. The combination of the stepped structure and the adhesive can reach the highest level IP68, and the stepped design can effectively prevent the adhesive from overflowing into the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 This is an overall structural diagram of a stepped waterproof and dustproof structure of the utility model;

[0019] Figure 2 This is a structural diagram of a stepped waterproof and dustproof lower cover of the utility model;

[0020] Figure 3 This is a structural diagram of a stepped waterproof and dustproof upper cover structure of the utility model;

[0021] Figure 4 This is a structural diagram of a stepped waterproof and dustproof structural glue injection component of the utility model. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0024] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The utility model provides a stepped waterproof and dustproof structure, by opening a first sealing groove and a second sealing groove on the top of a lower cover, arranging a first sealing sheet and a second sealing sheet at corresponding positions on the bottom of an upper cover, the first sealing groove and the second sealing groove are stepped, the first sealing sheet and the second sealing sheet are stepped, when the upper cover and the lower cover are connected, the first sealing sheet is embedded in the first sealing groove, and the second sealing sheet is embedded in the second sealing groove, forming a stepped sealing structure, and waterproof adhesive is filled in the first sealing groove and the second sealing groove, so that the waterproof reliability is high, the stepped structure and the adhesive are combined, and the highest grade IP68 can be achieved, and the stepped design can effectively prevent the adhesive from overflowing into the interior of the product.

[0026] Figure 1-4 The utility model is a schematic diagram of a stepped waterproof and dustproof structure implementation method, please refer to Figure 1-Figure 4 A stepped waterproof and dustproof structure of this embodiment includes a lower cover 100, an upper cover 200, a limiting component 300 and a glue injection component 400.

[0027] A first sealing groove 110 is provided on the top of the lower cover 100, a second sealing groove 120 is provided on the inner wall of the first sealing groove 110, the height of the second sealing groove 120 is lower than the height of the first sealing groove 110, a limiting plate 130 is installed on the side wall of the lower cover 100, and a limiting hole 140 is provided on the side wall of the limiting plate 130, the upper cover 200 is located on the top of the lower cover 100, a first sealing sheet 210 is installed on the bottom of the upper cover 200 at a position corresponding to the first sealing groove 110, a second sealing sheet 220 is installed on the bottom of the upper cover 200 at a position corresponding to the second sealing groove 120, the first sealing sheet 210 is embedded in the first sealing groove 110, the second sealing sheet 220 is embedded in the second sealing groove 120, and a fixing plate 150 is installed on the side wall of the lower cover 100. The side wall of the fixed plate 150 is rotatably connected to a knob 160, and a reciprocating threaded rod 170 is installed on the side wall of the knob 160. The first sealing groove 110 and the second sealing groove 120 are stepped, and the first sealing sheet 210 and the second sealing sheet 220 are stepped. When the lower cover 100 and the upper cover 200 are connected, the first sealing sheet 210 is embedded in the first sealing groove 110, and the second sealing sheet 220 is embedded in the second sealing groove 120. The first sealing groove 110 and the second sealing groove 120 are filled with waterproof adhesive. The first sealing sheet 210 cooperates with the first sealing groove 110, and the second sealing sheet 220 cooperates with the second sealing groove 120 to form a stepped waterproof structure, which effectively prevents the adhesive from overflowing into the product.

[0028] The limiting assembly 300 includes a fixed frame 310 installed on the side wall of the upper cover 200, a slide plate 320 slidably connected to the inside of the fixed frame 310, and a spring 330 installed on the side wall of the slide plate 320. A guide groove 340 is provided at the bottom of the fixed frame 310, and an L-shaped limiting rod 350 is installed at the bottom of the slide plate 320. The L-shaped limiting rod 350 extends through the guide groove 340. When connecting the lower cover 100 and the upper cover 200, the slide plate 320 is first pulled to move to the left side of the fixed frame 310 and squeeze the spring 330. The L-shaped limiting rod 350 is 50 follows the slide plate 320 to slide to the left side of the guide groove 340, pressing down the upper cover 200 until the bottom of the upper cover 200 abuts against the top of the lower cover 100, the first sealing sheet 210 is embedded in the first sealing groove 110, and the second sealing sheet 220 is embedded in the second sealing groove 120. At this time, the slide plate 320 is released, and the spring 330 rebounds to push the slide plate 320 and the L-shaped limiting rod 350 to slide to the right side of the fixed frame 310. The L-shaped limiting rod 350 passes through the limiting hole 140 to limit and fix the upper cover 200 on the top of the lower cover 100.

[0029] The glue injection assembly 400 includes a pressure tube 410 installed on the side wall of the lower cover 100 and a piston 420 located inside the pressure tube 410. A fixing rod 421 is installed on the side wall of the piston 420. A reciprocating threaded hole 422 is opened at the side end of the fixing rod 421. The reciprocating threaded rod 170 rotates and extends into the reciprocating threaded hole 422. A glue injection tube 430 is installed on the side wall of the pressure tube 410. The other end of the glue injection tube 430 extends into the first sealing groove 110. A first non-return valve 431 is installed on the body of the glue injection tube 430. A glue delivery tube 440 is installed on the side wall of the pressure tube 410. A second non-return valve 441 is installed on the body of the glue delivery tube 440. The other end of the glue delivery tube 440 is connected to the external adhesive tube. When the upper cover 20 When the pressure tube 410 is connected to the lower cover 100, the rotating knob 160 drives the reciprocating threaded rod 170 to rotate. When the reciprocating threaded rod 170 rotates, the screw structure is used to push the fixing rod 421 and the piston 420 to reciprocate inside the pressure tube 410. When the piston 420 moves to the outside of the pressure tube 410, the first one-way valve 431 is closed and the second one-way valve 441 is opened. The adhesive enters the pressure tube 410 through the adhesive feeding tube 440. When the piston 420 moves to the inside of the pressure tube 410, the first one-way valve 431 is opened and the second one-way valve 441 is closed. The adhesive inside the pressure tube 410 is filled into the first sealing groove 110 and the second sealing groove 120 through the adhesive injection tube 430.

[0030] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A stepped waterproof and dustproof structure, characterized in that: include: A lower cover (100), wherein a first sealing groove (110) is formed on the top of the lower cover (100), a second sealing groove (120) is formed on the inner wall of the first sealing groove (110), and a height of the second sealing groove (120) is lower than a height of the first sealing groove (110); The upper cover (200) is located on the top of the lower cover (100); a first sealing sheet (210) is installed at a position of the bottom of the upper cover (200) corresponding to the first sealing groove (110); a second sealing sheet (220) is installed at a position of the bottom of the upper cover (200) corresponding to the second sealing groove (120); the first sealing sheet (210) is embedded in the first sealing groove (110), and the second sealing sheet (220) is embedded in the second sealing groove (120).

2. A stepped waterproof and dustproof structure according to claim 1, characterized in that: A limiting plate (130) is installed on the side wall of the lower cover (100), and a limiting hole (140) is provided on the side wall of the limiting plate (130).

3. The stepped waterproof and dustproof structure according to claim 2, characterized in that: The invention also includes a limit assembly (300), wherein the limit assembly (300) includes a fixed frame (310) installed on the side wall of the upper cover (200), a slide plate (320) slidably connected to the inside of the fixed frame (310), and a spring (330) installed on the side wall of the slide plate (320); a guide groove (340) is provided at the bottom of the fixed frame (310); an L-shaped limit rod (350) is installed at the bottom of the slide plate (320); and the L-shaped limit rod (350) extends through the guide groove (340).

4. The stepped waterproof and dustproof structure according to claim 3, characterized in that: A fixing plate (150) is installed on the side wall of the lower cover (100), a knob (160) is rotatably connected to the side wall of the fixing plate (150), and a reciprocating threaded rod (170) is installed on the side wall of the knob (160).

5. The stepped waterproof and dustproof structure according to claim 4, characterized in that: It also includes a glue injection assembly (400), the glue injection assembly (400) includes a pressure tube (410) installed on the side wall of the lower cover (100) and a piston (420) located inside the pressure tube (410), the side wall of the piston (420) is installed with a fixing rod (421), the side end of the fixing rod (421) is provided with a reciprocating threaded hole (422), and the reciprocating threaded rod (170) rotates to extend into the reciprocating threaded hole (422).

6. The stepped waterproof and dustproof structure according to claim 5, characterized in that: A glue injection tube (430) is installed on the side wall of the pressure tube (410), the other end of the glue injection tube (430) extends into the first sealing groove (110), and a first one-way valve (431) is installed on the body of the glue injection tube (430). A glue delivery tube (440) is installed on the side wall of the pressure tube (410), and a second one-way valve (441) is installed on the body of the glue delivery tube (440).