CN110950171A

CN110950171A - Sealed damp-proof optical cable joint box

Info

Publication number: CN110950171A
Application number: CN201911260826.0A
Authority: CN
Inventors: 张华�
Original assignee: Jiangxi Liankang Communication Equipment Co Ltd
Current assignee: Jiangxi Liankang Communication Equipment Co Ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-04-03
Anticipated expiration: 2039-12-10
Also published as: CN110950171B

Abstract

The invention discloses a sealed and moisture-proof optical cable joint box, which comprises a box body and a box cover, wherein the insides of the side walls of the box body and the box cover are cavities, moisture-proof agents are filled in the cavities, moisture-proof holes communicated with the cavities are formed in the inner side walls of the box body and the box cover, sealing elements are embedded in the end faces of the box cover and the box body which are in butt joint, and buffer elements are arranged between the moisture-proof agents and the sealing elements at the tops of the cavities corresponding to the moisture-proof agents; more importantly, the sealing rubber strip that current optical cable splice closure is connected is replaced to the structure of this optical cable splice closure adoption sealing member, bolster, and the change of optical cable splice closure internal gas pressure can be adjusted through dampproofing hole, bolster, and the inseparable type between the sealing member can also be adjusted to the bolster simultaneously, guarantees the sealed effect of sealing member.

Description

Sealed damp-proof optical cable joint box

Technical Field

The invention relates to the technical field of optical fiber cable equipment, in particular to a sealed and moisture-proof optical cable joint box.

Background

The existing optical cable joint box is mainly sealed by arranging a sealing rubber strip between an upper shell and a lower shell, the sealing performance of the design has no problem at normal temperature, but along with seasonal temperature change, the air pressure in the optical cable joint box also changes along with the air pressure, the internal air pressure in the optical cable joint box also increases along with the air pressure in summer, and the sealing rubber strip becomes soft at high temperature, so that the phenomenon that the sealing rubber strip is broken by the high air pressure in the box body is often caused, water leakage is caused, the sealing performance of the optical cable joint box is lost, the communication quality of the whole optical cable line can be influenced, and the optical cable joint box can be maintained and replaced.

Disclosure of Invention

The invention aims to provide a sealed and moisture-proof optical cable joint box to solve the problem of sealing performance caused by the fact that a sealing rubber strip is damaged due to air pressure in the optical cable joint box in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme that the sealed and moisture-proof optical cable joint box comprises a box body and a box cover which are matched, wherein the box body and the box cover are fixed through bolts and nuts, both sides of the box body and the box cover are integrally provided with access parts for leading in optical fibers of an optical cable for connection, the access parts are provided with limiting channels, the insides of the side walls of the box body and the box cover are cavities, moisture-proof agents are filled in the cavities, the inner side walls of the box body and the box cover are provided with moisture-proof holes communicated with the cavities, sealing elements are embedded in the end faces of the box cover and the box body which are in butt joint, buffering elements are arranged between the top of the cavities and the sealing elements corresponding to the moisture-proof agents, and.

Compared with the prior art, the invention has the beneficial effects that: the moisture-proof agent is filled in the inner walls of the box body and the box cover to keep the optical cable splice box dry, and meanwhile, the obliquely arranged access part is combined to reduce the probability of water entering from the access part; more importantly, the sealing rubber strip that current optical cable splice closure is connected is replaced to the structure of this optical cable splice closure adoption sealing member, bolster, and the change of optical cable splice closure internal gas pressure can be adjusted through dampproofing hole, bolster, and the inseparable type between the sealing member can also be adjusted to the bolster simultaneously, guarantees the sealed effect of sealing member.

Preferably, the sealing member includes the caulking groove and inlays the sealing strip of establishing in the caulking groove, the caulking groove is fixed to be inlayed on the terminal surface of the top of box body, lid lateral wall, and the sealing strip phase-match interlock on this box body, the lid, and homogeneous body shaping has the interlock tooth that is the echelonment on the terminal surface of this sealing strip, wherein, sealing strip interlock tooth height on the box body is by outer toward interior increasing progressively, and the interlock tooth on the sealing strip can increase the leakproofness when box body, lid are connected, and simultaneously, the interlock tooth height trend that is the interlock tooth of echelonment and sealing strip on the box body can further reach water-proof effects, because the gravity that water self possessed even there is water entering sealing strip department, also can't make the dentition of the high one deck step of infiltration.

Preferably, the tooth surface of the meshing tooth is an inclined surface, the tooth surface of the meshing tooth with the inclined surface has a certain flow guide effect, and part of permeated water can be effectively led out in time through the tooth surface of the inclined surface, so that the water is prevented from accumulating in the meshing tooth and influencing the service life of the sealing strip.

Preferably, the buffer part comprises a spring part, a buffer plate with an I-shaped cross section and a cover plate, wherein the cover plate is arranged on the moisture-proof agent in the cavity, the bottom of the caulking groove is provided with a buffer channel capable of allowing the middle part of the buffer plate to penetrate through, two ends of the spring part are respectively connected with the cover plate and the bottom of the buffer plate, the sealing strips are arranged at the top end part of the buffer plate, and when gaps exist among the sealing strips, the buffer plate pushes the sealing strips to be closed under the elastic force of the spring part; when the moisture-proof agent absorbs water to expand or dry and contract, the cover plate moves along with the volume change of the moisture-proof agent under the elastic force of the spring element.

Preferably, lay along the chamber wall in the cavity and be formed with dampproofing bag, the dampproof agent is filled in dampproofing bag, packs into dampproofing bag with the dampproof agent, can enough guarantee the drying function of dampproof agent, also can avoid the dampproof agent to glue at the cavity inner wall simultaneously, is convenient for change the dampproof agent.

Preferably, the inclination angle of the access part is 15-60 degrees, and water entering the optical cable joint box from the access part can be reduced through the inclined arrangement of the access part.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a schematic structural view of the connection between the box body and the box cover.

In the figure: 1. the box comprises a box body, a box cover, an access part, a limiting channel, a moisture-proof agent, a moisture-proof hole, a sealing element, a caulking groove, a sealing strip, an engaging tooth, a buffering element, a spring element, a buffering plate, a cover plate and a moisture-proof bag, wherein the box body, the box cover, the access part, the limiting channel, the connecting part, the limiting channel, the moisture-proof agent, the moisture-proof hole, the sealing element, the caulking groove, the sealing strip, the engaging tooth.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a sealed and moisture-proof optical cable joint box comprises a box body 1 and a box cover 2 which are matched, wherein a fixing part is integrally and outwardly extended at the end part connected with the box body 1 and the box cover 2, a screw hole is formed in the fixing part, the box body 1 and the box cover 2 are closed and then fixed through a screw hole and a nut, in order to reduce water entering the optical cable joint box from the fixing part, the fixing part inclines downwards towards the extending direction, in order to ensure the attractiveness of the optical cable joint box, the fixing part inclines 45 degrees, in addition, an access part 3 which can be used for leading in optical cable fibers for connection is integrally formed at the two sides of the box body 1 and the box cover 2, a limiting channel 4 is formed in the access part 3, the optical cable fibers penetrate into the optical cable joint box from the limiting channel 4 for melting fiber connection, in order to avoid the water entering the optical cable joint box from the limiting channel 4, the inclination angle is 45 degrees, so that water can be put down along the inclination of the access part 3 under the action of gravity to flow out of the optical cable joint box, the inner parts of the side walls of the box body 1 and the box cover 2 are cavities, the moisture-proof agents 5 are filled in the cavities, the moisture-proof bags 9 are arranged in the cavities along the cavity wall, the moisture-proof agents 5 are filled in the moisture-proof bags 9, the drying function of the moisture-proof agents 5 can be ensured, the moisture-proof agents 5 can be prevented from being stuck to the inner walls of the cavities, the moisture-proof agents 5 are convenient to replace, and moisture-proof holes 6 communicated with the cavities are; in addition, a sealing element 7 is embedded in the end face where the box cover 1 and the box body 2 are butted, a buffer element 8 is arranged between the cavity top corresponding to the moisture-proof agent 5 and the sealing element 7, wherein the sealing element 7 comprises an embedding groove 7-1 and a sealing strip 7-2 embedded in the embedding groove 7-1, the embedding groove 7-1 is fixedly embedded on the end face of the top of the side wall of the box body 1 and the box cover 2, the sealing strip 7-2 on the box body 1 and the box cover 2 are engaged in a matching way, a step-shaped engaging tooth 7-3 is integrally formed on the end face of the sealing strip 7-2, wherein the height of the engaging tooth 7-3 of the sealing strip 7-2 on the box body 1 is increased from outside to inside, the engaging tooth 7-2 on the sealing strip 7-2 can increase the sealing performance when the box body 1 and the box cover 2 are, the height direction of the step-shaped occlusion teeth 7-2 and the occlusion teeth 7-3 of the sealing strip 7-2 on the box body 1 can further achieve the waterproof effect, and even if water enters the sealing strip, the water cannot permeate into the tooth rows of the higher step due to the self gravity of the water; in addition, when the air pressure in the box body changes, the air pressure can enter the cavity through the moisture-proof hole 6, the change of the air pressure enables the pressure received by the buffer piece 8 to change, and the sealing piece 7 is continuously and tightly occluded under the action of the force of the buffer piece 8, so that the structural characteristic of the sealing piece 7 is not influenced by the air pressure change in the optical cable joint box; in order to further guide part of the permeated water out of the optical cable joint box, the tooth surface of the meshing tooth 7-3 is an inclined surface, the tooth surface of the inclined surface meshing tooth 7-3 has a certain flow guide effect, and part of the permeated water can be effectively and timely guided out through the tooth surface of the inclined surface, so that the water is prevented from being accumulated in the meshing tooth, and the service life of the sealing strip 7-2 is also prevented from being influenced; the buffer piece 8 comprises a spring piece 8-1, a buffer plate 8-2 with an I-shaped cross section and a cover plate 8-3, wherein the cover plate 8-3 is arranged on the moisture-proof agent 5 in the cavity, a buffer channel capable of allowing the middle of the buffer plate 8-2 to pass through is formed in the bottom of the caulking groove 7-1, two ends of the spring piece 8-1 are respectively connected with the cover plate 8-3 and the bottom of the buffer plate 8-2, the sealing strip 7-2 is arranged at the top end of the buffer plate 8-2, and when a gap exists between the sealing strips 7-2, the buffer plate 8-2 pushes the sealing strip to be closed under the elastic force of the spring piece 81; when the moisture-proof agent 5 absorbs water to expand or shrink in a drying mode, the cover plate 8-3 moves along with the volume change of the moisture-proof agent 5 under the elastic force of the spring piece 8-1, and the sealing strip 7-2 and the cover plate 8-3 have the effects of buffering the extrusion and sealing connection in the cavity caused by volume expansion under the effects of the spring piece 8-1 and the buffer plate 8-2.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. A sealed and moisture-proof optical cable joint box comprises a box body (1) and a box cover (2) which are matched, the box body (1) and the box cover (2) are fixed by bolts and nuts, both sides of the box body (1) and the box cover (2) are integrally provided with access parts (3) for leading in optical fibers of optical cables for connection, the access parts (3) are provided with limiting channels (4), it is characterized in that the inner parts of the side walls of the box body (1) and the box cover (2) are hollow cavities, the cavity is filled with a moisture-proof agent (5), the inner side walls of the box body (1) and the box cover (2) are both provided with moisture-proof holes (6) communicated with the cavity, and the end surface of the box cover (2) and the box body (1) which are butted is embedded with a sealing element (7), the moisture-proof agent (5) is arranged on the top of the cavity, a buffer piece (8) is arranged between the cavity and the sealing piece (7), and the access portion (3) is of an inclined structure.

2. The cable joint box with the sealing and moisture-proof functions as claimed in claim 1, wherein the sealing element (7) comprises a caulking groove (7-1) and a sealing strip (7-2) embedded in the caulking groove (7-1), the caulking groove (7-1) is fixedly embedded in the top end faces of the side walls of the box body (1) and the box cover (2), the sealing strips (7-2) on the box body (1) and the box cover (2) are in matched meshing, stepped meshing teeth (7-3) are integrally formed on the end faces of the sealing strips (7-2), and the heights of the meshing teeth (7-3) of the sealing strips (7-2) on the box body (1) are increased from outside to inside.

3. A moisture-tight cable closure according to claim 2, wherein the teeth (7-3) are bevelled.

4. The cable joint box of claim 2 or 3, wherein the buffer member (8) comprises a spring member (8-1), a buffer plate (8-2) with an I-shaped cross section, and a cover plate (8-3), wherein the cover plate (8-3) is arranged on the moisture-proof agent (5) in the cavity, the bottom of the caulking groove (7-1) is provided with a buffer channel for allowing the middle part of the buffer plate (8-2) to pass through, two ends of the spring member (8-1) are respectively connected with the cover plate (8-3) and the bottom of the buffer plate (8-2), and the sealing strip (7-2) is arranged at the top end of the buffer plate (8-2).

5. A cable closure according to claim 4, wherein a moisture resistant bag (9) is formed within the cavity along the wall of the cavity, the moisture resistant agent (5) filling the moisture resistant bag (9).

6. A cable closure for sealing against moisture according to claim 5, in which the angle of inclination of the access portion (3) is between 15 ° and 60 °.