Mechanical sealing waterproof structure and combined shell

Abstract

The utility model discloses a mechanical seal waterproof structure and a combined housing, and the structure comprises a sealant groove which is disposed along the periphery of a first inner surface, facing a second housing, of a first housing; the glue overflowing groove is formed in the first inner surface of the first shell, is parallel to the sealant groove and is formed in the outer side of the sealant groove, and the depth of the glue overflowing groove is smaller than that of the sealant groove; the glue blocking rib is located on the first inner surface of the first shell, is parallel to the glue overflowing groove and is arranged on the outer side of the glue overflowing groove; the first sealing rib is located on the outermost side of the second inner surface, facing the first shell, of the second shell, the first end face, facing the first shell, of the first sealing rib is attached to the glue overflowing groove, and the outer side face of the first sealing rib is in clearance fit with the inner side face of the glue blocking rib. And the second sealing rib is located on the second shell and on the inner side of the first sealing rib, and the end part, facing the first shell, of the second sealing rib is located in the sealant groove. The mechanical sealing waterproof structure can cover a gap when the second shell and the first shell are assembled, and solidification of the sealant is accelerated.

Description

Technical Field

[0001] The utility model belongs to the field of sealing and waterproofing, in particular to a mechanical sealing and waterproofing structure and a combined shell. Background Art

[0002] When sealing two shell-type parts, a sealant groove is usually set on one shell, and a sealing rib is set at a position corresponding to the sealant groove on the other shell. Then glue is dispensed in the sealant groove. After the two shells are buckled together, the sealing rib contacts the sealant in the sealant groove to achieve sealing. At the same time, a part of the sealant is squeezed out of the sealant groove into the overflow groove. The overflow groove is located on one of the shells where the sealant groove is set and is parallel to the sealant groove. The overflow groove is generally 0.5mm deep and 2mm wide.

[0003] The two shells on both sides of the above-mentioned sealing structure are usually assembled in a large area. In order to prevent the sealant from overflowing and the gap between the two shells from being uneven after being fitted together, the two shells are locked with screws and the gap is small after locking, which makes it difficult for moisture to enter the sealant area, resulting in a longer curing time for the sealant. In addition, the two shells are slightly deformed during molding, which can be clearly observed in appearance, affecting the overall appearance of the product. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a mechanical sealing waterproof structure, comprising:

[0005] A sealing adhesive groove (1) is arranged along the periphery of the first inner surface of the first shell toward the second shell;

[0006] An overflow glue groove (2) is located on the first inner surface of the first shell, is parallel to the sealing glue groove (1) and is arranged outside the sealing glue groove (1), and has a depth less than the depth of the sealing glue groove (1);

[0007] The glue blocking rib (3) is located on the first inner surface of the first shell, parallel to the glue overflow groove (2) and arranged outside the glue overflow groove (2);

[0008] A first sealing rib (4) is located at the outermost side of the second inner surface of the second shell facing the first shell, and its first end surface facing the first shell is in contact with the overflow groove (2), and its outer side surface is gap-matched with the inner side surface of the rubber stop rib (3), so that the second shell is accommodated in the first shell;

[0009] A second sealing rib (5) is located on the second shell and inside the first sealing rib (4), and its end facing the first shell is located in the sealing rubber groove (1);

[0010] in,

[0011] The space inside the first sealing rib (4) and outside the second sealing rib (5) is a glue overflow space.

[0012] Furthermore, a first chamfer is provided on the inner side of the rubber retaining rib (3).

[0013] Furthermore, the first chamfer is a C0.5 chamfer.

[0014] Furthermore, a plurality of support blocks (6) are fixedly arranged at intervals on the first end surface of the first sealing rib (4) facing the first shell.

[0015] Furthermore, the multiple support blocks (6) have the same structure and are all first rectangular blocks.

[0016] Furthermore, a second chamfer (61) is provided on the outer side of the first rectangular block (6), and the second chamfer (61) is a C0.5 chamfer.

[0017] Furthermore, the rubber retaining rib (3) has a width of 1.6 mm and a height of 2 mm.

[0018] Furthermore, the height of the first rectangular block (6) is 0.5 mm.

[0019] Furthermore, the mechanical sealing waterproof structure also includes: a limit assembly, and the limit assembly includes:

[0020] At least one protrusion (7) is located on the outer surface of the first shell;

[0021] At least one lug (8) is located at the edge of the outer surface of the second shell and is arranged in one-to-one correspondence with at least one convex block (7);

[0022] in,

[0023] When the first shell and the second shell are assembled, at least one protrusion (7) and the corresponding at least one lug (8) form a zero-matching structure.

[0024] The utility model also provides a combined housing, comprising the aforementioned mechanical sealing waterproof structure.

[0025] Compared with the prior art, the mechanical sealing and waterproof structure provided by the utility model can cover the gap when the second shell and the first shell are assembled. Even if the second shell and the first shell are slightly deformed during molding, it is not easy to be observed in appearance and does not affect the overall appearance of the product. It can make it easier for air to enter the sealant groove and fully contact the sealant in the sealant groove, thereby reducing the amount of glue dispensed in the sealant groove and accelerating the curing of the sealant. It can limit the assembly of the first shell and the second shell. It can also reduce the probability of glue overflow and improve the product yield of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A partial schematic diagram of a mechanical sealing waterproof structure according to an embodiment of the utility model is shown;

[0027] Figure 2 A schematic structural diagram of a support block in a mechanical sealing waterproof structure according to an embodiment of the utility model is shown;

[0028] Figure 3 A structural schematic diagram of a limit assembly in a mechanical sealing waterproof structure according to an embodiment of the utility model is shown. DETAILED DESCRIPTION

[0029] The specific implementation of the utility model is described in detail below. It should be understood that the implementation of the utility model is not limited to the embodiments shown in the accompanying drawings, and the protection scope of the utility model is not limited by the specific implementation. The words "first", "second" and similar words used in the utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantity restrictions, but indicate that there is at least one. Unless otherwise expressly indicated, throughout the specification and claims, the term "include" or its changes such as "include" or "include" will be understood to include the stated elements or components, without excluding other elements or other components. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] Unless otherwise defined, the meanings of all technical terms and scientific terms used in the present invention are the same as those generally understood by ordinary technicians in the field. In addition, the meanings of the technical terms and scientific terms used in the present invention should be interpreted as having the same meaning as the corresponding terms defined in commonly used technical manuals, and should not be interpreted as having idealized or excessively formal meanings, unless explicitly defined in this utility model.

[0031] Figure 1 A partial schematic diagram of the mechanical sealing waterproof structure of an embodiment of the utility model is shown, see Figure 1The mechanical sealing and waterproof structure includes: a sealing glue groove 1, which is arranged along the periphery of the first inner surface of the first shell (the lower shell is taken as an example in this embodiment, and those skilled in the art know that it can also be a left shell or a right shell, a front shell or a rear shell, etc.) toward the second shell (the upper shell is taken as an example in this embodiment, and those skilled in the art know that it can also be a right shell or a left shell, a rear shell or a front shell, etc.); an overflow glue groove 2, which is located on the first inner surface of the first shell, is parallel to the sealing glue groove 1 and is arranged on the outside of the sealing glue groove 1, and its depth is less than the depth of the sealing glue groove 1; a glue blocking rib 3, which is located on the first inner surface of the first shell, is parallel to the overflow glue groove 2 and is arranged on the outside of the overflow glue groove 2; a first sealing rib 4, which is located on the outermost side of the second inner surface of the second shell facing the first shell, and its first end face facing the first shell is in contact with the overflow glue groove 2, and the outer side surface is gap-matched with the inner side surface of the glue blocking rib 3, so that the second shell is accommodated in the first shell; a second sealing rib 5, which is located on the second shell and on the inner side of the first sealing rib 4, and its end facing the first shell is located in the sealing glue groove 1.

[0032] The space inside the first sealing rib 4 and outside the second sealing rib 5 is a glue overflow space.

[0033] The first sealing rib 4 fits well with the overflow glue groove 2, which can play a role in positioning and limiting the assembly of the first shell and the second shell without affecting the air entry; the second shell is accommodated in the first shell to cover the gap when the second shell and the first shell are assembled. Even if the second shell and the first shell are slightly deformed during molding, it is not easy to be observed in appearance and does not affect the overall appearance of the product; in addition to blocking glue, the glue blocking rib 3 can also play a role in limiting the assembly of the first shell and the second shell in the first direction perpendicular to the assembly direction of the first shell and the second shell (the up and down direction in this embodiment).

[0034] Furthermore, the inventors have found through research that when the width of the rubber blocking rib is 1.6 mm and the height is 2 mm, it can achieve a better rubber blocking effect and reduce the manufacturing cost of the first shell.

[0035] Furthermore, in order to facilitate assembly, a first chamfer is provided on the inner side of the rubber retaining rib, and the first chamfer is a C0.5 chamfer.

[0036] In order to increase the gap between the first shell and the second shell after assembly, so that air can more easily enter the sealant groove and fully contact the sealant in the sealant groove 1, a plurality of (more than one) support blocks 6 are fixedly arranged at intervals on the first end surface of the first shell facing the first sealing rib 4, and the spacing between the plurality of support blocks 6 is as large as possible under the premise of satisfying the support strength. Figure 2 The structural diagram of the support block in the mechanical sealing waterproof structure of the embodiment of the utility model is shown. Figure 2The multiple support blocks 6 have the same structure and are all first rectangular blocks with a height of 0.5 mm. In order to facilitate assembly, a second chamfer 61 is provided on the outer side of the first rectangular block, and the second chamfer 61 is a C0.5 chamfer.

[0037] After the gap between the first shell and the second shell after assembly is enlarged by a plurality of support blocks 6 of the same structure, in order to further enhance the mutual support between the first shell and the second shell and limit the assembly of the first shell and the second shell in the assembly direction of the first shell and the second shell, the mechanical sealing waterproof structure is provided with a limit assembly. Figure 3 The schematic diagram of the structure of the limit assembly in the mechanical sealing waterproof structure of the utility model is shown in FIG. Figure 3 The limiting assembly includes: at least one protrusion 7, located on the outer surface of the first shell; at least one lug 8, located on the edge of the outer surface of the second shell and arranged in a one-to-one correspondence with the at least one protrusion 7. When the first shell and the second shell are assembled, the at least one protrusion 7 and the corresponding at least one lug 8 form a zero-matching structure, so that the first shell and the second shell adjacent to the at least one protrusion 7 and the at least one lug 8 are partially fitted.

[0038] Furthermore, the protrusion 7 is a second rectangular block.

[0039] In summary, the utility model provides a mechanical sealing and waterproof structure. By setting a glue retaining rib 3 and accommodating the second shell in the first shell, the gap between the second shell and the first shell when assembled can be covered. Even if the second shell and the first shell are slightly deformed during molding, it is not easy to be observed in appearance, and does not affect the overall appearance of the product. It also plays a limiting role in the assembly of the first shell and the second shell in the first direction perpendicular to the assembly direction of the first shell and the second shell; by means of a plurality of support blocks 6 of similar structure arranged at intervals, the gap between the first shell and the second shell after assembly can be increased, so that air can more easily enter the sealant groove 1 and fully contact the sealant in the sealant groove 1, thereby reducing the amount of glue dispensed in the sealant groove 1 and accelerating the curing of the sealant. Specifically, the curing time of the sealant is shortened from 72 hours to 18 hours, thereby improving the production capacity of the production line; by setting a limiting component, the assembly of the first shell and the second shell can be limited in the assembly direction of the first shell and the second shell; finally, the overflow glue groove 2 and the overflow glue space can also reduce the probability of overflow glue, thereby improving the product yield of the production line.

[0040] The utility model also provides a combined shell, which comprises a first shell, a second shell and the aforementioned mechanical sealing waterproof structure.

[0041] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different options and changes. The scope of protection of the present invention is defined by the claims and their equivalents.

Claims

1. Mechanical sealing waterproof structure, characterized in that: include: A sealing adhesive groove (1) is arranged along the periphery of the first inner surface of the first shell toward the second shell; An overflow glue groove (2), located on the first inner surface of the first shell, parallel to the sealing glue groove (1) and arranged outside the sealing glue groove (1), and having a depth less than the depth of the sealing glue groove (1); A glue blocking rib (3), located on the first inner surface of the first shell, parallel to the glue overflow groove (2) and arranged outside the glue overflow groove (2); A first sealing rib (4) is located at the outermost side of the second inner surface of the second shell facing the first shell, and its first end surface facing the first shell is in contact with the overflow groove (2), and its outer side surface is gap-matched with the inner side surface of the rubber stop rib (3), so that the second shell is accommodated in the first shell; A second sealing rib (5) is located on the second shell and on the inner side of the first sealing rib (4), and its end facing the first shell is located in the sealing glue groove (1); in, The space inside the first sealing rib (4) and outside the second sealing rib (5) is a glue overflow space.

2. The mechanical sealing waterproof structure according to claim 1, characterized in that: The inner side of the rubber retaining rib (3) is provided with a first chamfer.

3. The mechanical sealing waterproof structure according to claim 2, characterized in that: The first chamfer is a C0.5 chamfer.

4. The mechanical sealing waterproof structure according to claim 3, characterized in that: A plurality of support blocks (6) are fixedly arranged at intervals on the first end surface of the first sealing rib (4) facing the first shell.

5. The mechanical sealing waterproof structure according to claim 4, characterized in that: The multiple support blocks (6) have the same structure and are all first rectangular blocks.

6. The mechanical sealing waterproof structure according to claim 5, characterized in that: A second chamfer (61) is provided on the outer side of the first rectangular block, and the second chamfer (61) is a C0.5 chamfer.

7. The mechanical sealing waterproof structure according to claim 1, characterized in that: The rubber retaining rib (3) has a width of 1.6 mm and a height of 2 mm.

8. The mechanical sealing waterproof structure according to claim 5, characterized in that: The height of the first rectangular block is 0.5 mm.

9. The mechanical sealing waterproof structure according to any one of claims 1 to 8, characterized in that: Also includes: A limit assembly, the limit assembly comprising: at least one protrusion (7) located on the outer surface of the first shell; at least one lug (8) located at the edge of the outer surface of the second shell and arranged in one-to-one correspondence with at least one convex block (7); in, When the first shell and the second shell are assembled, the at least one protrusion (7) and the corresponding at least one lug (8) form a zero-matching structure.

10. Combined housing, characterized in that: Including the mechanical sealing waterproof structure as described in claim 9.

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