CN211206861U

CN211206861U - Dustproof optical fiber splice closure

Info

Publication number: CN211206861U
Application number: CN201922452935.4U
Authority: CN
Inventors: 张海燕
Original assignee: Wuhan Haixun Network Technology Co ltd
Current assignee: Wuhan Haixun Network Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-07
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to a dustproof optic fibre splice closure: including the box body that has the inner chamber, the box body is formed by preceding box body and back box body amalgamation, be equipped with at least two and the communicating line hole of inner chamber on the box body, wherein, preceding box body and back box body divide into preceding with the line hole axially, the back two halves, it is equipped with sealed gum cover to lead to the downthehole, the periphery wall of sealed gum cover is hugged closely on the internal perisporium that leads to the line hole, and be equipped with axial limit structure between the internal perisporium of sealed gum cover and lead to the line hole, axial limit structure is including locating on the sealed gum cover periphery wall and be the annular card platform of circumference and locate on the internal perisporium that leads to the line hole and be the annular draw-in groove of circumference, the card platform is located. The utility model has the advantages that: the through-hole has good dustproof and waterproof effects.

Description

Dustproof optical fiber splice closure

Technical Field

The utility model relates to a connecting piece of light guide specifically is a dustproof optic fibre splice box.

Background

Fiber optic closures are used for protective connectivity between two or more optical fibers, fiber distribution, and are one of the most common devices used in subscriber access points. The existing dustproof optical fiber splice closure generally comprises a closure body formed by splicing a front closure body and a rear closure body, wherein at least two through wire holes are formed in the closure body, and a sealing structure is usually arranged at the splicing part of the front closure body and the rear closure body in order to prevent dust, rainwater and the like from entering an inner cavity of the closure body. Although the optical fiber splice closure has good dustproof and waterproof effects at the splicing part of the closure body, the optical fiber cable and the through hole inner peripheral wall are tightly matched with each other at the through hole, but the through hole is difficult to be completely filled with the optical fiber cable due to the structure, and therefore gaps still exist at the through hole, so that the dustproof and waterproof effects at the through hole are poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a dustproof optic fibre splice closure that through-wire hole department is dustproof, water-proof effects is good.

In order to solve the technical problem, the utility model provides a dustproof optic fibre splice closure of following structure: including the box body that has the inner chamber, the box body is formed by preceding box body and back box body amalgamation, is equipped with at least two and the communicating line hole of inner chamber on the box body, and wherein, preceding box body and back box body will lead to the line hole and divide into preceding, back two halves axially, lead to the downthehole sealed gum cover that is equipped with of line, the periphery wall of sealed gum cover is hugged closely on the internal perisporium that leads to the line hole, and is equipped with axial limit structure between the internal perisporium of sealed gum cover and lead to the line.

After adopting above-mentioned structure, compare with prior art, the utility model has the advantages of it is following: when optical fibers need to be accessed, the sealing rubber sleeve can be tightly sleeved on the optical fiber cable firstly, and then the sealing rubber sleeve is placed in the through hole, so that the inner peripheral wall of the sealing rubber sleeve can be tightly attached to the outer peripheral wall of the optical fiber cable, and the outer peripheral wall of the sealing rubber sleeve can also be tightly attached to the inner peripheral wall of the through hole, thereby effectively eliminating the clearance of the through hole, and further greatly improving the dustproof and waterproof effects of the dustproof optical fiber splice box at the through hole; and the setting of axial limit structure can lead to the line hole and can restrict the axial displacement of sealed gum cover when the optic fibre cable is pulled, avoids sealed gum cover to follow the condition emergence that the line hole breaks away from along with optic fibre cable removes, guarantees the sealing performance of sealed gum cover.

Dustproof optic fibre splice box, wherein, axial limit structure just is circumference annular card platform and locates on the through-line hole internal perisporium and be circumference annular draw-in groove including locating on the sealed gum cover periphery wall, the card platform is located the draw-in groove, and the peripheral part of card platform hugs closely on the tank bottom of draw-in groove.

The axial limiting structure with the structure is simple in structure, and the assembly of the sealing rubber sleeve is very convenient.

Dustproof optic fibre splice closure, wherein, two annular lateral walls of draw-in groove are inclined plane, and two annular lateral walls of draw-in groove draw close each other from notch to tank bottom gradually.

The clamping groove with the structure can play a role in guiding the clamping table in the process that the sealing rubber sleeve is arranged in the through hole, so that the assembly of the sealing rubber sleeve is simpler.

Dustproof optic fibre splice box, wherein, cup jointed an elastic sealing circle on the sealed gum cover periphery wall of ka tai both sides respectively, be equipped with one respectively on the through-line downthehole perisporium of draw-in groove both sides and be the annular seal groove of circumference, elastic sealing circle is located the seal groove that corresponds to compressed tightly between the tank bottom of sealed gum cover periphery wall and the seal groove that corresponds.

Above-mentioned structure can further strengthen the sealing performance between through-hole and the sealed gum cover to further improve the utility model discloses dustproof, the water-proof effects of dustproof optic fibre splice box in through-hole department.

Dustproof optic fibre splice box, wherein, be equipped with one respectively on the sealed gum cover periphery wall of ka tai both sides and be the annular spacing bulge loop of circumference, spacing bulge loop is located the seal groove that corresponds to be located ka tai and corresponding between the elastic sealing circle.

The limiting convex ring can not only play a role in positioning the elastic sealing ring in the process that the elastic sealing ring is sleeved on the sealing rubber sleeve, so that the elastic sealing ring can be more conveniently arranged in the sealing groove; and when the optical fiber cable was pulled, the axial displacement of sealing groove and spacing bulge loop's cooperation structure can also further restrict sealed gum cover to can avoid sealed gum cover to remove along with the optical fiber cable and take place from the condition that the line hole breaks away from, guarantee sealed gum cover's sealing performance.

Dustproof optic fibre splice box, wherein, be equipped with the sealed membrane that seals sealed gum cover axial through-hole with the sealed gum cover one end of inner chamber intercommunication.

The sealing film has the effects that when the wire diameter of the optical fiber cable is smaller or the peripheral shape of the optical fiber cable is irregular, after the optical fiber cable is inserted into the axial through hole of the sealing rubber sleeve and punctures the sealing film, the sealing film can be tightly attached to the optical fiber cable, and the part of the sealing film which is not punctured can still form plugging on the axial through hole of the sealing rubber sleeve, so that the sealing performance of the sealing rubber sleeve is ensured; in addition, the user can also fill in the sealing clay into the axial through hole of the sealing rubber sleeve at this moment, and under the blocking of the part of the sealing film which is not punctured, the sealing clay can be kept in the axial through hole of the sealing rubber sleeve and cannot leak into the inner cavity of the box body, so that the sealing performance of the sealing rubber sleeve can be further improved, and the dustproof and waterproof effects of the through hole are ensured.

Dustproof optic fibre splice box, wherein, all lead to the line hole transversely set up on the left side wall and/or the right side wall of box body.

Above-mentioned structure can make dust, rainwater etc. more difficult entering into in the inner chamber, thereby can make the utility model discloses dustproof optic fibre splice box has better dustproof, water-proof effects.

Dustproof optic fibre splice box, wherein, preceding box body and back box body divide into the inner chamber before, back two parts, be equipped with on the preceding terminal surface of back box body with back box body integrated into one piece and be annular sealed sand grip, the inner chamber that is located on the back box body is located the inboard of sealed sand grip, be equipped with on the rear end face of preceding box body with sealed sand grip matched with and be annular sealed recess, the inner chamber that is located on the preceding box body is located the inboard of sealed recess, sealed sand grip inserts in sealed recess to and form hard seal between the sealed recess, every lead to the line hole all runs through sealed sand grip and sealed recess.

The dustproof optical fiber splice box of the utility model achieves the sealing effect between the front box body and the rear box body through the hard sealing between the sealing convex strip and the sealing groove, the sealing convex strip and the rear box body are integrally formed, the sealing groove and the front box body are integrally formed, thus the rubber sealing ring is not required to be additionally arranged between the front box body and the rear box body, thereby not only leading the sealing structure of the dustproof optical fiber splice box of the utility model to be simpler, but also avoiding the situation that the dustproof and waterproof effects between the front box body and the rear box body are deteriorated due to the aging of the rubber sealing ring, ensuring the sealing stability between the front box body and the rear box body, and leading the dustproof optical fiber splice box of the utility model to keep better dustproof and waterproof effects for a long time; in addition, the seal structure that comprises sealed sand grip and sealed recess can be guaranteeing with effective combination of through-wire hole department seal structure the utility model discloses dustproof optical fiber splice box is dustproof, when water-proof effects, can also make the utility model discloses dustproof optical fiber splice box's overall structure is more compact, thereby is favorable to the utility model discloses dustproof optical fiber splice box's miniaturized development.

Dustproof optic fibre splice box, wherein, the internal perisporium and the periphery wall of sealed sand grip are inclined plane, the internal week edge and the periphery edge of sealed groove notch compress tightly respectively on the internal perisporium and the periphery wall of sealed sand grip.

Above-mentioned structure not only can be convenient for sealed sand grip insert sealed recess in to the box body is more inseparable with back box body complex before the assembly of box body and back box body before being convenient for, thereby sealing performance between sand grip and the sealed recess is better, and then can promote the utility model discloses dustproof optic fibre splice box's dustproof, water-proof effects.

Dustproof optic fibre splice box, wherein, the internal week side and the periphery side of sealed groove opening part compress tightly respectively in the internal perisporium bottom and the periphery wall bottom of sealed sand grip, the rear end face of preceding box body laminates each other with the preceding terminal surface of back box body.

Above-mentioned structure can make preceding box body more inseparable with back box body complex to make the sealing performance between sealed sand grip and the sealed recess better, and then can promote the utility model discloses dustproof optic fibre splice box's dustproof, water-proof effects.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the dustproof optical fiber splice closure of the present invention;

FIG. 2 is an exploded view of the dustproof optical fiber splice closure of the present invention;

fig. 3 is a schematic view of the three-dimensional structure of the front cover of the dustproof optical fiber splice closure of the present invention;

fig. 4 is an enlarged schematic view of the three-dimensional structure of the sealing rubber sleeve in the dustproof optical fiber splice closure of the present invention;

fig. 5 is a schematic view of the main view structure of the dustproof optical fiber splice closure of the present invention;

FIG. 6 is an enlarged, partial cross-sectional view taken along line A-A of FIG. 5;

fig. 7 is an enlarged partial sectional view taken along line B-B in fig. 5.

Description of reference numerals: 1. a box body; 2. an inner cavity; 3. a front box body; 4. a rear box body; 5. a through hole; 6. sealing the rubber sleeve; 7. an axial limiting structure; 8. clamping a platform; 9. a card slot; 10. an elastic sealing ring; 11. a sealing groove; 12. a limit convex ring; 13. sealing the film; 14. sealing the convex strips; 15. sealing the groove; 16. and (7) fixing holes.

Detailed Description

The dustproof optical fiber splice closure of the present invention will be described in detail with reference to the accompanying drawings and the following detailed description.

In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", and the like indicate orientations or state relationships based on the orientations or state relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the mechanism or member referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 7, the dustproof optical fiber splice closure of the present invention comprises a closure body 1 having an inner cavity 2, wherein the closure body 1 is formed by splicing a front closure body 3 and a rear closure body 4, and the front closure body 3 and the rear closure body 4 are locked and fixed to each other by a plurality of screw fasteners (not shown in the drawings) after being spliced; be equipped with two at least and the communicating logical line hole 5 of inner chamber 2 on the box body 1, preceding box body 3 and back box body 4 divide into preceding, back two halves with leading to line hole 5 axially, lead to being equipped with sealed gum cover 6 in the hole 5, the periphery wall of sealed gum cover 6 is hugged closely on the internal perisporium that leads to line hole 5, and is equipped with axial limit structure 7 between the internal perisporium that sealed gum cover 6 and lead to line hole 5.

Axial limit structure 7 in this embodiment just is the annular card platform of circumference 8 and locates on the internal perisporium of through-hole 5 and be the annular draw-in groove 9 of circumference including locating on the 6 periphery walls of sealed gum cover, and card platform 8 is located draw-in groove 9, and the peripheral part of card platform 8 hugs closely on the tank bottom of draw-in groove 9.

Preferably, both annular side walls of the slot 9 are inclined slopes, and the two annular side walls of the slot 9 gradually get close to each other from the notch to the bottom of the slot.

An elastic sealing ring 10 is respectively sleeved on the peripheral wall of the sealing rubber sleeve 6 on two sides of the clamping table 8, a circumferential annular sealing groove 11 is respectively arranged on the inner peripheral wall of the through hole 5 on two sides of the clamping groove 9, and the elastic sealing ring 10 is located in the corresponding sealing groove 11 and is compressed between the peripheral wall of the sealing rubber sleeve 6 and the bottom of the corresponding sealing groove 11.

Preferably, the outer peripheral walls of the sealing rubber sleeves 6 on the two sides of the clamping table 8 are respectively provided with a circumferential annular limiting convex ring 12, and the limiting convex rings 12 are located in the corresponding sealing grooves 11 and located between the clamping table 8 and the corresponding elastic sealing rings 10.

One end of the sealing rubber sleeve 6 communicated with the inner cavity 2 is provided with a sealing film 13 for sealing the axial through hole of the sealing rubber sleeve 6.

All lead to the line hole 5 transversely open on the left side wall and/or the right side wall of box body 1, the lead to the line hole 5 in this embodiment has four, and wherein two lead to the line hole 5 and locate the upper and lower both sides of box body 1 left side wall, two lead to the line hole 5 in addition and locate the upper and lower both sides of box body 1 right side wall.

Preceding box body 3 and back box body 4 divide into inner chamber 2 before, back two parts, be equipped with on the preceding terminal surface of back box body 4 with 4 integrated into one piece of back box body and be annular sealed sand grip 14, inner chamber 2 that is located on the box body 4 of back is located the inboard of sealed sand grip 14, be equipped with on the rear end face of preceding box body 3 with sealed sand grip 14 matched with and be annular sealed recess 15, inner chamber 2 that is located on the preceding box body 3 is located the inboard of sealed recess 15, sealed sand grip 14 inserts in sealed recess 15, and form hard seal between the sealed recess 15, every lead to line hole 5 all runs through sealed sand grip 14 and sealed recess 15.

Preferably, the inner peripheral wall and the outer peripheral wall of the sealing rib 14 are inclined slopes, and the inner peripheral edge and the outer peripheral edge of the notch of the sealing groove 15 are respectively pressed on the inner peripheral wall and the outer peripheral wall of the sealing rib 14; the inner peripheral edge of the notch of the sealing groove 15 refers to an annular boundary part of the inner peripheral wall of the sealing groove 15 and the rear end face of the front box body 3, and the outer peripheral edge of the notch of the sealing groove 15 refers to an annular boundary part of the outer peripheral wall of the sealing groove 15 and the rear end face of the front box body 3.

Preferably, the inner peripheral side and the outer peripheral side of the opening of the seal groove 15 are respectively pressed against the bottom of the inner peripheral wall and the bottom of the outer peripheral wall of the seal rib 14, and the rear end face of the front case 3 and the front end face of the rear case 4 are attached to each other.

The upper end of the box body 1 in the embodiment is provided with a fixing hole 16, and a user can conveniently hang the box body 1 on a hook on a wall through the fixing hole 16.

The packing rubber 6 in this embodiment is made of a rubber material having elasticity.

The above embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a dustproof optic fibre splice box, is including box body (1) that has inner chamber (2), box body (1) is formed by preceding box body (3) and back box body (4) amalgamation, be equipped with on box body (1) at least two and the communicating line hole (5) of inner chamber (2), its characterized in that: preceding box body (3) and back box body (4) will lead to line hole (5) and divide into preceding, back two halves axially, it is equipped with sealed gum cover (6) to lead to in the line hole (5), the periphery wall of sealed gum cover (6) is hugged closely on the internal perisporium that leads to the line hole (5), just be equipped with axial limit structure (7) between the internal perisporium of sealed gum cover (6) and lead to the line hole (5).

2. The dust protected fiber optic splice enclosure of claim 1, wherein: axial limit structure (7) just are circumference annular card platform (8) and locate on logical line hole (5) internal perisporium and be circumference annular draw-in groove (9) including locating on sealed gum cover (6) periphery wall, card platform (8) are located draw-in groove (9), just the peripheral part of card platform (8) is hugged closely on the tank bottom of draw-in groove (9).

3. The dust protected fiber optic splice enclosure of claim 2, wherein: two annular lateral walls of draw-in groove (9) are the inclined plane, just two annular lateral walls of draw-in groove (9) draw close each other from notch to tank bottom gradually.

4. The dust protected fiber optic splice enclosure of claim 2, wherein: an elastic sealing ring (10) is respectively sleeved on the peripheral walls of the sealing rubber sleeves (6) on the two sides of the clamping table (8), a sealing groove (11) which is circumferential and annular is arranged on the inner peripheral wall of the through hole (5) on the two sides of the clamping groove (9), the elastic sealing ring (10) is positioned in the corresponding sealing groove (11) and is compressed between the peripheral wall of the sealing rubber sleeve (6) and the groove bottoms of the corresponding sealing grooves (11).

5. The dust protected fiber optic splice enclosure of claim 4, wherein: be equipped with one respectively on the sealed gum cover (6) periphery wall of ka tai (8) both sides and be annular spacing bulge loop (12) of circumference, spacing bulge loop (12) are located corresponding seal groove (11) to be located ka tai (8) and corresponding elastic sealing circle (10) between.

6. The dust protected fiber optic splice enclosure of claim 1, wherein: and one end of the sealing rubber sleeve (6) communicated with the inner cavity (2) is provided with a sealing film (13) for sealing the axial through hole of the sealing rubber sleeve (6).

7. The dust protected fiber optic splice enclosure of claim 1, wherein: all the through hole (5) are transversely arranged on the left side wall and/or the right side wall of the box body (1).

8. The dust protected fiber optic splice enclosure of any of claims 1-7, wherein: preceding box body (3) and back box body (4) divide into preceding, back two parts with inner chamber (2), be equipped with on the preceding terminal surface of back box body (4) with back box body (4) integrated into one piece and be annular sealed sand grip (14), be located inner chamber (2) on back box body (4) are located the inboard of sealed sand grip (14), be equipped with on the rear end face of preceding box body (3) with sealed sand grip (14) matched with and be annular sealed recess (15), be located inner chamber (2) on the preceding box body (3) are located the inboard of sealed recess (15), sealed sand grip (14) insert in sealed recess (15), and with form hard seal between sealed recess (15), every lead to line hole (5) and all run through sealed sand grip (14) and sealed recess (15).

9. The dust protected fiber optic splice enclosure of claim 8, wherein: the internal perisporium and the periphery wall of sealed sand grip (14) are inclined plane, the internal periphery edge and the periphery edge of sealed recess (15) notch compress tightly respectively on the internal perisporium and the periphery wall of sealed sand grip (14).

10. The dust protected fiber optic splice enclosure of claim 9, wherein: the inner peripheral side and the outer peripheral side of the opening of the sealing groove (15) are respectively pressed at the bottom of the inner peripheral wall and the bottom of the outer peripheral wall of the sealing convex strip (14), and the rear end face of the front box body (3) is attached to the front end face of the rear box body (4).