CN211206892U - Waterproof optical fiber splice closure - Google Patents

Abstract

The utility model relates to a waterproof optical fiber 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, preceding box body and back box body divide into preceding with the line hole axially, 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, circumference evenly distributed has many axial protruding muscle on the internal perisporium of sealed gum cover, the sealed gum cover one end that communicates with the inner chamber is equipped with the membrane that seals sealed gum cover axial through-hole, axial protruding muscle one end extends to a membrane one end, and become one whole with a membrane connection, the axial protruding muscle other end extends to sealed gum cover one end department, axial protruding muscle from the one side of being connected with sealed gum cover internal. The utility model has the advantages that: the dustproof and waterproof effect is good.

Description

Waterproof optical fiber splice closure

Technical Field

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

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 waterproof optical fiber splice closure generally comprises a closure body formed by splicing a front closure body and a rear closure body, wherein the closure body is provided with at least two through wire holes, 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 waterproof 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 waterproof optical fiber 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, 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 will lead to the line hole and divide into preceding, the 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, circumference evenly distributed has many axial protruding muscle on the internal perisporium of sealed gum cover, the sealed gum cover one end that communicates with the inner chamber is equipped with the membrane that seals sealed gum cover.

After adopting above-mentioned structure, compare with prior art, the utility model has the advantages of it is following: when the waterproof optical fiber splice closure of the utility model needs to be accessed with optical fibers, the optical fiber cable can be inserted from one end of the axial through hole of the sealing rubber sleeve, then the sealing film is pierced and then penetrates out of the other end of the axial through hole of the sealing rubber sleeve, at the moment, the sealing film can be tightly attached to the optical fiber cable, the part of the sealing film which is not punctured can still form plugging to the axial through hole of the sealing rubber sleeve, meanwhile, the optical fiber cable can extrude the axial convex rib, and the sealing rubber sleeve can expand outwards under the action of the axial convex rib, then the sealing rubber sleeve is put into the through hole, so that the outer peripheral wall of the sealing rubber sleeve can be tightly attached to the inner peripheral wall of the through hole, finally, the sealing cement is filled into the axial through hole of the sealing rubber sleeve until the sealing cement fills the axial through hole of the sealing rubber sleeve, under the blocking of the part of the sealing film which is not punctured, the sealing rubber mud can be kept in the axial through hole of the sealing rubber sleeve and cannot leak into the inner cavity of the box body. From the above, the matching structure of the sealing film and the sealing clay can effectively eliminate the gap between the axial through hole of the sealing rubber sleeve and the optical fiber cable, and the matching structure of the optical fiber cable and the axial convex rib can enable the sealing rubber sleeve to expand outwards, so that the outer peripheral wall of the sealing rubber sleeve can be better pressed on the inner peripheral wall of the through hole, further the gap between the outer peripheral wall of the sealing rubber sleeve and the inner peripheral wall of the through hole can be effectively eliminated, and finally, the dustproof and waterproof effects of the waterproof optical fiber splice box at the through hole are greatly improved; in addition, the protruding muscle of axial can also improve the structural strength of sealing clay greatly, and like this when the fiber cable is pulled, sealing clay also can stably adhere on the protruding muscle of axial, and can not remove along with the fiber cable, thereby further guarantee the utility model discloses dustproof, the water-proof effects of waterproof optical fiber splice box in through-wire hole department.

Waterproof optic fibre splice closure, wherein, protruding muscle one end of axial extends to and seals membrane one end to become one with sealing the membrane and connecting.

The structural strength of the outer peripheral side of the sealing film can be greatly improved by the structure, so that the structural integrity of the outer peripheral side of the sealing film can be effectively guaranteed when the optical fiber cable punctures the sealing film, the sealing film can better block the sealing clay, and the condition that the sealing clay leaks into the inner cavity of the box body is further avoided.

Waterproof optic fibre splice closure, wherein, the protruding muscle other end of axial extends to a sealed gum cover one end department.

Above-mentioned structure can further improve the structural strength of sealing clay, and sealing clay more can not remove along with the optical fiber cable when making the optical fiber cable by the pulling to further guaranteed the utility model discloses dustproof, the water-proof effects of waterproof optic fibre splice box in through-wire hole department.

Waterproof optic fibre splice closure, wherein, the protruding muscle of axial attenuate gradually from the one side of being connected with sealed gum cover inner peripheral wall to the one side of being close to sealed gum cover axis.

Above-mentioned structure can make during the axial through hole that sealed gum cover can be filled by more conveniently to make sealed gum cover can fill up sealed gum cover's axial through hole more easily, and then can further eliminate the clearance between sealed gum cover's axial through hole and the optic fibre cable, guaranteed the utility model discloses dustproof, the water-proof effects of waterproof optic fibre splice box in through-wire department.

Waterproof optic fibre splice closure, wherein, the protruding muscle other end of axial is equipped with the direction fillet.

The setting up of direction fillet not only can make during the fiber cable inserts the axial through-hole of sealed gum cover more easily, but also can make sealed clay fill in more easily and fill up the axial through-hole of sealed gum cover, and then can further eliminate the clearance between the axial through-hole of sealed gum cover and the fiber cable, guaranteed the utility model discloses dustproof, the water-proof effects of waterproof fiber splice box in through-wire department.

Waterproof optic fibre splice box, wherein, be equipped with on the periphery wall of sealed gum cover and be circumference annular card platform, be equipped with on the internal perisporium in through-line hole and be circumference annular draw-in groove, 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.

Above-mentioned structure makes the axial displacement that leads to the line hole and can restrict sealed gum cover when the optic fibre cable is pulled, avoids sealed gum cover to remove along with the optic fibre cable and takes place from the condition that leads to the line hole and break away from, guarantees sealed gum cover's sealing performance.

Waterproof 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.

Waterproof 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 waterproof optical fiber splice box in through-hole department.

Waterproof 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.

Waterproof optic fibre splice closure, wherein, preceding box body and back box body divide into preceding, back two parts with the inner chamber, 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 sealed recess between form hard seal.

The utility model discloses waterproof optical fiber splice closure reaches the sealed effect between front box body and the back box body through the hard seal between sealed sand grip and the sealed recess, and sealed sand grip and back box body integrated into one piece, sealed recess and front box body integrated into one piece, therefore make between front box body and the back box body need not additionally set up the rubber seal circle, thereby not only make the utility model discloses waterproof optical fiber splice closure's seal structure becomes simpler, and avoided the condition that leads to dustproof, waterproof effect between front box body and the back box body to worsen to take place because of the ageing condition of rubber seal circle, guaranteed the seal stability between front box body and the back box body, make the utility model discloses waterproof optical fiber splice closure can keep better dustproof, waterproof effect 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 waterproof fiber splice closure is dustproof, when water-proof effects, can also make the utility model discloses waterproof fiber splice closure's overall structure is more compact, thereby is favorable to the utility model discloses waterproof fiber splice closure's miniaturized development.

Drawings

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

fig. 2 is an exploded view of the waterproof 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 waterproof optical fiber splice closure of the present invention;

fig. 4 is an enlarged schematic view of a three-dimensional structure of one of the viewing angles of the sealant sleeve in the waterproof optical fiber splice closure of the present invention;

fig. 5 is an enlarged schematic view of the three-dimensional structure of the other viewing angle of the sealant sleeve in the waterproof optical fiber splice closure of the present invention;

fig. 6 is a schematic view of the main view structure of the waterproof optical fiber splice closure of the present invention;

FIG. 7 is an enlarged, partial cross-sectional view taken along line A-A of FIG. 6;

fig. 8 is an enlarged partial sectional view taken along line B-B in fig. 6.

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. axial convex ribs; 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. a fixing hole; 17. and (5) guiding a fillet.

Detailed Description

The waterproof optical fiber splice closure of the present invention will be described in further 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 8, the waterproof 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 fastened and fixed by a plurality of screw fasteners, not shown in the drawings, in an interlocking manner; 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, the back two halves with leading to line hole 5 axially, lead to being equipped with sealed gum cover 6 in the line hole 5, the periphery wall of sealed gum cover 6 is hugged closely on the internal perisporium that leads to line hole 5, circumference evenly distributed has many axial protruding muscle 7 on the internal perisporium of sealed gum cover 6, the sealed gum cover 6 one end that communicates with inner chamber 2 is equipped with the membrane 13 that seals 6 axial through-holes of sealed gum cover.

Preferably, one end of the axial rib 7 extends to one end of the sealing film 13 and is integrally connected with the sealing film 13.

Preferably, the other end of the axial rib 7 extends to one end of the sealing rubber sleeve 6.

Preferably, the axial rib 7 is gradually thinned from a side connected to the inner peripheral wall of the packing rubber 6 to a side close to the axis of the packing rubber 6.

Preferably, the other end of the axial rib 7 is provided with a guide round corner 17.

Be equipped with on the periphery wall of sealed gum cover 6 and be the annular card platform 8 of circumference, be equipped with on the internal perisporium of through-hole 5 and be the annular draw-in groove 9 of circumference, 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.

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.

Above-mentioned structure can make dust, rainwater etc. more difficult entering into in the inner chamber 2, thereby can make the utility model discloses waterproof optic fibre splice box has better dustproof, water-proof effects.

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 back box body 4 integrated into one piece 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 sealed 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.

Above-mentioned structure not only can be convenient for sealed sand grip 14 insert sealed recess 15 in to box body 3 and back box body 4's assembly before being convenient for, but also can make preceding box body 3 more inseparable with back box body 4 complex, thereby sealing performance between sealed sand grip 14 and the sealed recess 15 is better, and then can promote the utility model discloses dustproof, the water-proof effects of waterproof optic fibre splice box.

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.

Above-mentioned structure can make preceding box body 3 more inseparable with back box body 4 complex to make the sealing performance between sealed sand grip 14 and the sealed recess 15 better, and then can promote the utility model discloses dustproof, the water-proof effects of waterproof optic fibre splice box.

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 (10)

1. The utility model provides a waterproof 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 the line hole (5), the periphery wall of sealed gum cover (6) is hugged closely on the internal perisporium that leads to line hole (5), circumference evenly distributed has many axial protruding muscle (7) on the internal perisporium of sealed gum cover (6), with sealed gum cover (6) one end of inner chamber (2) intercommunication is equipped with seals membrane (13) that seals sealed gum cover (6) axial through-hole.

2. The watertight fiber optic closure of claim 1, wherein: one end of the axial convex rib (7) extends to one end of the sealing film (13) and is connected with the sealing film (13) into a whole.

3. The watertight fiber optic closure of claim 2, wherein: the other end of the axial convex rib (7) extends to one end of the sealing rubber sleeve (6).

4. The watertight fiber optic closure of claim 3, wherein: the axial convex rib (7) is gradually thinned from one side connected with the inner peripheral wall of the sealing rubber sleeve (6) to one side close to the axis of the sealing rubber sleeve (6).

5. The watertight fiber optic closure of claim 4, wherein: and a guide fillet (17) is arranged at the other end of the axial convex rib (7).

6. The watertight fiber optic closure of any one of claims 1-5, wherein: be equipped with on the periphery wall of sealed gum cover (6) and be circumference annular card platform (8), be equipped with on the internal perisporium of lead to line hole (5) and be circumference annular draw-in groove (9), 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).

7. The watertight fiber optic closure of claim 6, 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.

8. The watertight fiber optic closure of claim 6, 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).

9. The watertight fiber optic closure of claim 8, 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.

10. The watertight fiber optic closure of claim 9, 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).

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