CN219834681U - Thin shell waterproof construction - Google Patents

Abstract

The utility model relates to the technical field of water prevention of thin-shell structures, in particular to a thin-shell water-proof structure; the sealing device comprises a lower shell, an upper cover and an elastic sealing body, wherein the lower shell, the upper cover and the elastic sealing body are arranged in a involution mode, a limit groove is formed in a peripheral ring of the upper cover, a meshed flange is arranged at a position, corresponding to the limit groove, of the lower shell, the elastic sealing body is arranged in the limit groove, and the lower shell and the upper cover are fixedly arranged through a detachable connecting piece. According to the utility model, the limit groove is formed in the upper cover and is meshed with the flange on the lower shell, so that the elastic sealing body can be embedded and placed, and further, the sealing waterproof and dustproof effects are achieved; the lower shell adopts a double-layer thin shell structure, so that the problem that the shrinkage of injection molding is difficult to control in the traditional structure due to the fact that the side wall of the lower shell is too thick can be solved while the rigidity of the shell is ensured.

Description

Thin shell waterproof construction

Technical Field

The utility model relates to the technical field of water prevention of thin-shell structures, in particular to a thin-shell water-proof structure.

Background

In the design of electronic products, the situation of needing waterproof and dustproof is often encountered, and the waterproof structure generally has waterproof and dustproof between cylinder and round hole, waterproof and dustproof between the contact surface of face and face. The general way of waterproofing and dust-proofing from face to face is as follows.

1. The rubber type rubber sheet 3 is clamped between the surfaces, the structural form is shown in the attached figure 1, and the waterproof and dustproof structure has the following problems: (1) Because of the surface contact, in order to ensure that the rubber 3 has enough pre-pressing amount during assembly, firstly, the interval between the screws cannot be too large, otherwise, because the cover 2 body is deformed due to the reaction force of the rubber 3, particularly the middle of the screws, the deformation amount is maximum, the rubber 3 is compressed unevenly, and even the waterproof and dustproof effects cannot be achieved; (2) The rubber sheet 3 is generally not available with a proper standard part, needs to be opened according to the shape of the shell 4, and has high cost; (3) The structural strength requirement on the shell 4, particularly the cover body 2 is high, otherwise, the shell is easily deformed by the rebound force of the rubber when the rubber is pressed, so that the waterproof and dustproof structural form is difficult to use when the structural part is made of plastic materials.

2. Elastic material 5 is pressed between the intermeshing teeth and the grooves, the elastic material is generally O-shaped or square in section, the structural form is shown in figure 2, so that a waterproof effect is achieved, the problem that the pressure of the rubber is too high is solved, but the wall of the shell 4 is generally thicker because the grooves are reserved for the elastic material 5, so that shrinkage deformation is difficult to control during injection molding, and the whole is heavier, so that the material is wasted.

To this end, the utility model provides a thin-shell waterproof structure.

Disclosure of Invention

Based on this, it is necessary to provide a thin-shell waterproof structure in view of the above technical problems.

In order to achieve the above object, the technical scheme of the present utility model is as follows:

the utility model provides a thin shell waterproof construction, includes lower casing, upper cover and the elastic sealing body that involution set up, be equipped with the spacing groove on the peripheral ring of upper cover, the position that corresponds the spacing groove on the lower casing is equipped with engaged with flange, the elastic sealing body is installed in the spacing inslot, through detachable connecting piece fixed mounting between lower casing and the upper cover.

Specifically, a long side wall and a short side wall are respectively arranged on two sides of the limiting groove, the long side wall is arranged on the inner side of the periphery of the upper cover in a surrounding mode, the short side wall is arranged on the outer side of the periphery of the upper cover in a surrounding mode, and a stepped structure is formed among the bottom surface of the periphery of the upper cover, the short side wall and the long side wall.

Specifically, the short side wall is uniformly provided with an assembly guide sleeve, and the assembly guide sleeve is provided with an internal thread through hole penetrating through the upper cover.

Specifically, the position on the long side wall corresponding to the assembly guide sleeve is a first arc avoidance section.

Specifically, the lower shell comprises an outer thin shell and an inner thin shell arranged in the outer thin shell, wherein the inner thin shell is connected with the outer thin shell through a vertical rib, the side wall of the outer thin shell is higher than that of the inner thin shell, the positions of the vertical rib and the flange, which correspond to the internal thread through holes, are provided with assembly grooves, the assembly grooves are matched with the internal thread through holes, and the position, which corresponds to the assembly guide sleeve, of the side wall of the inner thin shell is a second arc avoidance section.

The utility model has the advantages that: according to the thin-shell waterproof structure, the limiting groove is formed in the upper cover and meshed with the flange on the lower shell, so that the elastic sealing body can be embedded and placed, and further the sealing waterproof and dustproof effects are achieved; the lower shell adopts a double-layer thin shell structure, so that the problem that the shrinkage of injection molding is difficult to control in the traditional structure due to the fact that the side wall of the lower shell is too thick can be solved while the rigidity of the shell is ensured.

Drawings

FIG. 1 is a schematic view of a rubber-like skin sandwiched between faces in the background of the utility model;

FIG. 2 is a schematic view of a structure in which an elastic material is pressed between intermeshing teeth and grooves in the background of the utility model;

fig. 3 is a schematic structural view of a thin-shell waterproof structure according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the structure of the upper cover according to the embodiment of the present utility model;

FIG. 5 is a schematic view of the structure of the lower housing according to the embodiment of the present utility model;

fig. 6 is a schematic structural view of an elastic sealing body according to an embodiment of the present utility model.

Reference numerals: the fixing bolt 1, the cover body 2, the rubber 3, the shell 4, the elastic material 5, the upper cover 6, the outer thin shell 7, the inner thin shell 8, the elastic sealing body 9, the detachable connecting piece 10, the internal thread through hole 11, the limiting groove 12, the long side wall 13, the short side wall 14, the assembling guide sleeve 15, the first arc avoiding section 16, the vertical rib 17, the assembling groove 18, the flange 19 and the second arc avoiding section 20.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail by the following detailed description with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 3-6, a thin-shell waterproof structure comprises a lower shell, an upper cover 6 and an elastic sealing body 9, wherein the lower shell, the upper cover 6 and the elastic sealing body 9 are oppositely arranged, a limit groove 12 is formed in a peripheral ring of the upper cover 6, a meshed flange 19 is arranged on the lower shell corresponding to the limit groove 12, the elastic sealing body 9 is arranged in the limit groove 12, and the lower shell and the upper cover 6 are fixedly arranged through a detachable connecting piece 10.

In this embodiment, the thin-shell waterproof structure is composed of a lower shell, an upper cover 6, an elastic sealing body 9 and a detachable connecting piece 10 (screw), wherein the lower shell can be a container of various electronic components, and is a thin-shell structure composed of an outer thin shell 7 and an inner thin shell 8 arranged inside the outer thin shell 7, the inner thin shell 8 and the outer thin shell 7 are connected through vertical ribs 17, and meanwhile, the height of the side wall of the outer thin shell 7 is higher than that of the inner thin shell 8, namely, the side wall of the outer thin shell 7 and the side wall of the inner thin shell 8 have a height difference, and the thin-shell structure is adopted, so that the problems of excessively thick side wall and difficult control of injection molding shrinkage can be solved while the rigidity of the lower shell is ensured.

In the embodiment, the corresponding positions of the lower shell and the limit groove 12 of the upper cover 6 are provided with the engaged flanges 19, the engaged flanges 19 are placed in the lower shell, the limit groove 12 is arranged in the upper cover 6, meanwhile, the lower shell wall adopts a thin shell structure, the waterproof performance is ensured, and the problems of material waste, heavy weight and lower structural strength of the upper cover 6 caused by injection molding deformation and too thick wall when plastic materials are used are effectively solved; and the elastic sealing body 9 with a certain depth is embedded between the flange 19 and the limit groove 12, so that the waterproof and dustproof effects can be achieved.

In this embodiment, the vertical ribs 17 and the flanges 19 are provided with assembling grooves 18 corresponding to the internal threaded through holes 11, so that when the lower casing and the upper cover 6 are closed, the screws are screwed into the assembling grooves 18, thereby locking the upper cover 6 and the lower casing and compacting the elastic material.

In this embodiment, two sides of the limiting groove 12 are respectively provided with a long side wall 13 and a short side wall 14, wherein the long side wall 13 is annularly arranged on the inner side of the periphery of the upper cover 6, the short side wall 14 is annularly arranged on the outer side of the periphery of the upper cover 6, a stepped structure is formed among the bottom surface of the periphery of the upper cover 6, the short side wall 14 and the long side wall 13, and the structures of the long side wall 13 and the short side wall 14 are equivalent to the reinforcing ribs forming the upper cover 6, so that the rigidity of the upper cover 6 can be increased without increasing the thickness of the upper cover 6, the structural strength of the upper cover 6 can be increased, and the waterproof and dustproof effects can be enhanced.

In this embodiment, a plurality of assembly guide sleeves 15 are uniformly arranged on the short side wall 14, and an internal thread through hole 11 penetrating through the upper cover 6 is formed on the assembly guide sleeve 15, so that a screw penetrates through the internal thread through hole 11 and is in threaded connection with the assembly groove 18, and the function of fixing the upper cover 6 and the lower shell is achieved.

In this embodiment, the position on the long side wall 13 corresponding to the assembling guide sleeve 15 is a first arc avoidance section 16, the position on the side wall of the inner thin shell 8 corresponding to the assembling guide sleeve 15 is a second arc avoidance section 20, so that the position of the elastic sealing body 9 is convenient to place and limit, the specific structure of the elastic sealing body 9 refers to fig. 6, and the materials of the elastic sealing body 9 include, but are not limited to, nitrile rubber, silicone rubber and the like.

It will be apparent to those skilled in the art that the various step embodiments of the utility model described above may be performed in ways other than those described herein, including but not limited to simulation methods and experimental apparatus described above. The steps of the utility model described above may in some cases be performed in a different order than that shown or described above, and may be performed separately. Therefore, the present utility model is not limited to any specific combination of hardware and software.

The foregoing is a further detailed description of the utility model in connection with specific embodiments, and is not intended to limit the practice of the utility model to such descriptions. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (5)

1. The utility model provides a thin shell waterproof construction, includes lower casing, upper cover and the elastic sealing body that involution set up, its characterized in that, be equipped with the spacing groove on the peripheral ring of upper cover, the position that corresponds the spacing groove on the lower casing is equipped with engaged with flange, the elastic sealing body is installed in the spacing inslot, through detachable connecting piece fixed mounting between lower casing and the upper cover.

2. The thin-shell waterproof structure according to claim 1, wherein a long side wall and a short side wall are respectively arranged on two sides of the limiting groove, the long side wall is annularly arranged on the inner side of the periphery of the upper cover, the short side wall is annularly arranged on the outer side of the periphery of the upper cover, and a stepped structure is formed among the bottom surface of the periphery of the upper cover, the short side wall and the long side wall.

3. The thin-shell waterproof structure according to claim 2, wherein the short side wall is uniformly provided with an assembly guide sleeve, and the assembly guide sleeve is provided with an internal thread through hole penetrating through the upper cover.

4. A thin-shell waterproof structure according to claim 3, wherein the position on the long side wall corresponding to the guide sleeve is a first arc-shaped avoiding section.

5. The thin-shell waterproof structure according to claim 4, wherein the lower shell comprises an outer thin shell and an inner thin shell arranged in the outer thin shell, the inner thin shell and the outer thin shell are connected through vertical ribs, the height of the side wall of the outer thin shell is higher than that of the side wall of the inner thin shell, assembly grooves are formed in positions, corresponding to the inner threaded through holes, on the vertical ribs and the flanges, and are matched with the inner threaded through holes, and the position, corresponding to the assembly guide sleeve, of the side wall of the inner thin shell is a second arc avoidance section.