CN215953912U

CN215953912U - Protection device for cable joint

Info

Publication number: CN215953912U
Application number: CN202122511520.7U
Authority: CN
Inventors: 黄健益; 潘景正
Original assignee: Ningbo Jinze Telecommunication Equipment Co ltd
Current assignee: Ningbo Jinze Telecommunication Equipment Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-03-04
Anticipated expiration: 2031-10-18

Abstract

The utility model discloses a protection device for a cable joint, which comprises a central column and is characterized in that: the upper end of center post is provided with dustproof cap, and the cover is equipped with nut and lower nut on the outer wall of center post, is provided with the sealing washer between last nut and dustproof cap, goes up threaded connection between nut and the dustproof cap, is provided with lower sealing washer, goes up nut and lower nut threaded connection between last nut and the center post outer wall. The utility model provides a protection device for a cable joint, which is used for protecting the cable joint and avoiding dust pollution.

Description

Protection device for cable joint

Technical Field

The utility model relates to the field of optical fibers, in particular to a protection device for a cable joint.

Background

Fiber optic connectors are used in fiber optic communication systems to make connections between fiber optic cables, between fiber optic cables and optoelectronic components, and between optoelectronic components. The end faces of two optical fibers to be connected are precisely butted together, so that the light energy output by the transmitting optical fiber is coupled into the receiving optical fiber to the maximum extent.

For example, the present invention patent publication No. CN108459378A discloses "an optical fiber connector, an optical fiber adapter, and an optical fiber connector", which includes an optical cable, a first body, a second body, a direction ring, and a locking housing, wherein the first body is connected to the second body, the first body is sleeved on the optical fiber extending from the optical cable, the second body is sleeved on the optical cable and the optical fiber, the direction ring is fixed on the outer periphery of the second body, an alignment portion is disposed on the outer periphery of the direction ring, the locking housing is sleeved on the second body, the locking housing can rotate around the second body, the locking housing is farther from the first body than the direction ring, and the radius of the locking housing is greater than the radius of the direction ring. The first slot and the second slot are formed in the optical fiber adapter connected with the optical fiber connector, seamless connection is achieved through the upper direction ring and the aligning portion of the optical fiber connector and the second slot in the optical fiber adapter, and the first body is matched with the first slot in the optical fiber adapter to achieve blind insertion. However, the existing optical cable joint lacks a protection device, and contaminants such as dust easily pollute the joint.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of the prior art, and provides a cable joint protection device which protects a cable joint and avoids dust pollution.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a cable joint's protection device, includes the center post, its characterized in that: the upper end of center post is provided with dustproof cap, and the cover is equipped with nut and lower nut on the outer wall of center post, is provided with the sealing washer between last nut and dustproof cap, goes up threaded connection between nut and the dustproof cap, is provided with lower sealing washer, goes up nut and lower nut threaded connection between last nut and the center post outer wall.

As an improvement, the inner cavity wall of the upper screw cap has a taper with a large upper part and a small lower part.

And the upper end of the central column is provided with a buckling part for clamping the housing of the SC connector, and the buckling part consists of two buckling points which are oppositely arranged.

And the lower end of the central column is provided with a cable clamp, the outer wall of the cable clamp is provided with a clamping slot for clamping the cable into the cable clamp, the lower end of the central column is provided with a notch, the appearance of the cable clamp is matched with the notch, and at least one clamping slot is formed on the inner wall of the cable clamp.

And the outer wall of the lower end of the central column is screwed with a spiral tail pipe, and the spiral tail pipe is provided with a spiral pipe part which is small at the bottom and big at the top.

And the outer wall of the central column is provided with a notch convenient for screwing the central column.

And a locking structure for preventing the upper nut and the lower nut from rotating mutually is arranged between the upper nut and the lower nut.

And the dustproof cap is further improved, a flexible connecting ring is arranged on the dustproof cap, two ends of the flexible connecting ring are respectively provided with a connecting hole, and a plurality of salient points are uniformly distributed on the inner side wall of each connecting hole in the circumferential direction.

Compared with the prior art, the utility model has the advantages that: the cable connector is protected by arranging the dustproof cap on the central column, and meanwhile, the dustproof cap is tightened and sealed by utilizing the upper nut and the lower nut which are sleeved on the outer wall of the central column and are screwed with each other, so that the cable connector is arranged in a completely closed space, and dust pollution is avoided.

Drawings

FIG. 1 is a schematic structural diagram of an external shape of a protection device for a cable connector according to an embodiment of the present invention;

FIG. 2 is an exploded view of the cable splice protector of the present invention;

FIG. 3 is a cross-sectional view of a protection device for a cable splice in an embodiment of the utility model;

FIG. 4 is a schematic structural diagram of a dust cap in an embodiment of the present invention;

FIG. 5 is a schematic structural view of a central column in an embodiment of the present invention;

FIG. 6 is a schematic view of an upper nut according to an embodiment of the present invention;

FIG. 7 is a schematic view of a lower nut according to an embodiment of the present invention;

FIG. 8 is a schematic view of the structure of a spiral tail pipe in an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a cable card in an embodiment of the utility model;

figure 10 is a schematic view of a flexible attachment ring in an embodiment of the present invention.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 10, the cable splice protector of the present embodiment includes a center post 1, a dust cap 3, an upper nut 21, a lower nut 22, a flexible coupling ring 4, a spiral tail tube 5, and a cable clamp 7.

Wherein, the upper end of the central column 1 is provided with a dustproof cap 3, the outer wall of the central column 1 is sleeved with an upper screw cap 21 and a lower screw cap 22, an upper sealing ring 91 is arranged between the upper screw cap 21 and the dust cap 3, after the dust cap 3 is covered, the SC connector 8 is protected from dust and water, the upper screw cap 21 is connected with the dust cap 3 through screw threads, a lower sealing ring 22 is arranged between the upper nut 21 and the outer wall of the central column 1, the lower sealing ring 22 has a waterproof effect, the upper nut 21 and the lower nut 22 are connected by screw threads, preferably, the inner cavity wall of the upper nut 21 has a taper with a large upper part and a small lower part, so that, when the upper screw cap 21 and the dust cap 3 are screwed, the upper sealing ring 91 and the lower sealing ring 92 are conveniently clamped, the sealing effect is improved, and simultaneously, a locking structure for preventing the upper nut 21 and the lower nut 22 from rotating mutually is arranged between the upper nut 21 and the lower nut 22, so that the upper nut 21 and the lower nut 22 are not easy to loosen after being screwed.

In addition, a spiral tail pipe 5 is screwed on the outer wall of the lower end of the central column 1, the spiral tail pipe 5 is provided with a spiral pipe part 51 which is small at one end and large at the other end, the spiral structure can protect cables, the large-bore end can directly pass through the whole SC connector 8, the operation is convenient, meanwhile, a notch 12 which is convenient for screwing the central column 1 is formed in the outer wall of the central column 1, and the notch 12 is convenient for screwing by using tools.

In addition, the lower extreme of center post 1 is provided with cable card 7, offers on the outer wall of cable card 7 to be used for going into the card wire casing 72 in the cable card 7 with the cable card, and the opening part of center post 1 lower extreme is provided with breach 13, and the appearance and the breach 13 looks adaptation of cable card 7 are formed with one at least draw-in groove 71 on the inner wall of cable card 7, and preferably, draw-in groove 71 has twice, after cooperating with cable card 7, can prevent to take place to rotate behind the fixed cable of cable card 7 for the cable is fixed more firmly. The upper end of the central column 1 is provided with a buckling part 11 for clamping the housing of the SC connector 8, the buckling part 11 is composed of two buckling points 111 which are oppositely arranged, and the buckling part 11 is matched with the housing of the SC connector 8 to prevent the SC connector 8 from being separated outwards.

Finally, in the embodiment of the present invention, a flexible connection ring 4 is disposed on the dust cap 3, two ends of the flexible connection ring 4 are respectively provided with a connection hole 41, a plurality of protrusions 411 are circumferentially and evenly distributed on an inner side wall of the connection hole 41, and the protrusions 411 facilitate connection of the flexible connection ring 4.

In summary, the central column 1 is provided with the dust cap 3 to protect the cable joint, and meanwhile, the dust cap 3 is tightened and sealed by the two mutually screwed upper and

lower screw caps

21 and 22 sleeved on the outer wall of the central column 1, so that the cable joint is arranged in a completely closed space, and dust pollution is avoided.

Claims

1. A cable joint's protection device, includes center post (1), its characterized in that: the upper end of center post (1) is provided with dustproof cap (3), and the cover is equipped with nut (21) and lower nut (22) on the outer wall of center post (1), is provided with between last nut (21) and dustproof cap (3) sealing washer (91), threaded connection between last nut (21) and the dustproof cap (3), is provided with between last nut (21) and center post (1) outer wall lower sealing washer (92), goes up nut (21) and lower nut (22) threaded connection.

2. A cable splice protection device according to claim 1, in which: the inner cavity wall of the upper screw cap (21) has a taper with a big top and a small bottom.

3. A cable splice protection device according to claim 1, in which: the upper end of the central column (1) is provided with a buckling part (11) for clamping the housing of the SC connector (8), and the buckling part (11) consists of two buckling points (111) which are oppositely arranged.

4. A cable splice protection device according to claim 3, in which: the cable clamp is characterized in that a cable clamp (7) is arranged at the lower end of the central column (1), a clamping wire groove (72) used for clamping a cable into the cable clamp (7) is formed in the outer wall of the cable clamp (7), a notch (13) is formed in an opening at the lower end of the central column (1), the appearance of the cable clamp (7) is matched with the notch (13), and at least one clamping groove (71) is formed in the inner wall of the cable clamp (7).

5. A cable splice protection device according to claim 4, in which: the outer wall of the lower end of the central column (1) is screwed with a spiral tail pipe (5), and the spiral tail pipe (5) is provided with a spiral pipe part (51) which is small at the bottom and big at the top.

6. A cable splice protection device according to claim 5, in which: a notch (12) convenient for screwing the central column (1) is formed on the outer wall of the central column (1).

7. A cable splice protection device according to claim 1, in which: and a locking structure for preventing the upper nut (21) and the lower nut (22) from rotating mutually is arranged between the upper nut (21) and the lower nut (22).

8. A cable splice protection device according to claim 1, in which: the dustproof cap (3) is provided with a flexible connecting ring (4), two ends of the flexible connecting ring (4) are respectively provided with a connecting hole (41), and a plurality of salient points (411) are uniformly distributed on the inner side wall of the connecting hole (41) in the circumferential direction.