CN217543481U - An optical cable plugging guide tube - Google Patents

Abstract

The utility model proposes an optical cable plugging and guiding tube, which is in the technical field of power communication equipment and solves the problem of optical cable protection. The elbow includes an open slot and an upper cover; the open slot is provided with an optical cable, and the upper cover is buckled on the open slot; the open slot includes a first straight slot, a connecting slot and a second straight slot; the connecting slot is arranged at Between the first straight slot and the second straight slot, the second snap-fit cover is snapped on the second straight slot; the straight tube includes a holding slot and a limit plate; the optical cable extends along one end of the holding slot to The other end of the holding slot includes a first straight slot and a second straight slot arranged perpendicular to each other, the guide tube is not restricted by the corner of the optical cable wiring, and the straight tube is inserted into the first protective shell and the second protective shell. Between the shells, the end of the straight tube is sealed to prevent foreign matter from entering the guide tube from the end of the straight tube and affecting the normal use of the optical cable.

Description

An optical cable plugging guide tube

technical field

The utility model relates to the technical field of electric power communication equipment, in particular to an optical cable plugging and guiding tube.

Background technique

Eighteen major power grid anti-accident measures issued by State Grid Co., Ltd. "State Grid Equipment (2018) No. 979" Article "16.3.2.8" requires: "It should be prevented that the introduction of optical cables is not tightly blocked or the connection box is installed incorrectly, resulting in Water freezes in the optical cable protection tube or in the splice box, causing the optical fiber to be damaged by external force and causing fiber breakage failure."

As the connecting part of the OPGW or ADSS optical cable line and the communication room of the substation, the guiding optical cable carries the transmission of important information such as dispatching data network and relay protection. The structure guiding the optical cable casing in the substation is a common fault point, which is mainly because there is no unified, effective and standard waterproof and sealing measures and process methods for protecting pipes. At present, most of the State Grid companies use fireproof mud for plugging. After long-term exposure operation outdoors, the fireproof mud often cracks and falls off after being air-dried, rained, and exposed to the sun, resulting in problems such as stagnant water and freezing, which can easily lead to twisting and breaking of optical cables. In order to effectively isolate and prevent rainwater, moisture, salt spray, dust, debris and rodents from entering the guiding optical cable protective tube, causing the guiding optical cable to fail, resulting in the failure of normal transmission of power communication services , and reasonable blocking methods and measures must be considered.

To guide the optical cable into the equipment room, it needs to be connected to the equipment room by the way of "L"-shaped underground laying through the guide pipe. At present, the guide pipe is mainly made of steel pipe, but with the influence of external rain, moisture, salt fog and acid rain and other harsh environments, there are problems such as large-scale corrosion and rust of the guide steel pipe, and there is a huge safety hazard for the protection of the guide cable. . However, the replacement of the guide steel pipe is extremely inconvenient. The main reason is that the replacement of a new guide steel pipe requires the guide optical cable to be threaded into the newly replaced pipe. The common method needs to interrupt the business of the optical cable in use. Another way to replace the guide pipe without cabling is to cut off the old guide steel pipe with a cutting machine and then install it with a Huff pipe. Since some substations do not allow construction to be hot, the operation of this method is limited by conditions. At present, the method of repairing old steel pipes is mainly used, and the method of repairing old steel pipes cannot fundamentally solve the problem. Therefore, it is urgent to research a device that can repair and install the guide tube without cutting or using a cutting device without interrupting the communication service of the optical cable.

Utility model content

In view of this, the present invention proposes an optical cable plugging guide tube, which can be used for the installation of new optical cable guide tubes, and can also be used for guide tube refurbishment. The installation process of the guide tube does not affect the normal use of the optical cable.

The technical scheme of the present utility model is realized as follows: an optical cable plugging guide tube includes an end cover, a straight pipe, a curved pipe and a connecting piece, wherein the two ends of the curved pipe are respectively connected with a straight pipe; the end cover is provided with At one end of each straight pipe away from the curved pipe; the curved pipe includes an open groove and an upper cover; the open groove is provided with an optical cable, and the upper cover is fastened on the open groove; the open groove includes a first straight groove, a connecting groove and a second The straight groove; the connecting groove is arranged between the first straight groove and the second straight groove, and the first straight groove and the second straight groove are arranged perpendicular to each other; the upper cover includes a first buckle cover, a connecting cover and a second straight groove Two snap covers; the first snap cover is snapped on the first straight groove; the connecting cover is snapped on the connecting groove; the second snap cover is snapped on the second straight groove; the straight tube includes a holding groove and a limit plate; the optical cable extends along one end of the holding groove to the other end of the holding groove; the limit plate covers the opening of the holding groove; the end cover includes a first end fixing groove and a second end fixing groove and the outlet end; the first end fixing slot and the second end fixing slot are symmetrically arranged with each other, and the openings of the first end fixing slot and the second end fixing slot are buckled together; the outlet end is arranged at the first end One end of the fixing groove and the second end fixing groove; the end of the optical cable extends out of the end cover from the outlet end; the connecting piece includes a first protective shell and a second protective shell; the first protective shell and the second protective shell are buckled into a whole; The end of the pipe connected to the straight pipe is arranged between the first protective shell and the second protective shell.

On the basis of the above technical solutions, preferably, the end of the straight pipe away from the curved pipe is inserted between the first end fixing groove and the second end fixing groove.

On the basis of the above technical solutions, it is preferable to further include a limit bar, a limit bar is arranged between the holding groove and the limit plate, the opening groove and the upper cover, and the limit bar includes a first positioning bar and a second positioning bar. Two positioning strips, the first positioning strip and the second positioning strip are both triangular steel, and the first positioning strip and the second positioning strip are fastened together.

On the basis of the above technical solutions, preferably, the elbow further includes a bending segment fixing piece, the bending segment fixing piece includes an upper fixing ear and a lower fixing ear, the upper fixing ear is fixedly arranged on the connection cover, and the lower fixing ear It is fixedly arranged on the connection groove, and the upper fixing ear and the lower fixing ear are fixedly arranged by the cooperation of the bolt and the nut.

On the basis of the above technical solutions, preferably, the bending segment fixing member includes two pieces, one of which is arranged on one side of the connection cover, and the other is arranged on the other side of the connection cover.

On the basis of the above technical solutions, preferably, the end cover further includes a sealing gasket, and the sealing gasket is arranged between the first end fixing groove and the second end fixing groove, and the first end fixing groove and the first end fixing groove The fixing grooves at the two ends are fixedly arranged by the cooperation of bolts and nuts.

On the basis of the above technical solutions, preferably, a plurality of fastening rings are also included, and the fastening rings are wound around the straight pipe and the curved pipe.

Based on the above technical solutions, preferably, the tightening ring includes a first tightening ring and a second tightening ring, and the first tightening ring and the second tightening ring are fastened by the cooperation of bolts and nuts.

On the basis of the above technical solutions, preferably, the outlet end is disposed at the end of the end cap away from the straight pipe.

Compared with the prior art, the optical cable plugging guide tube of the utility model has the following beneficial effects:

(1) It includes a first straight groove and a second straight groove that are arranged perpendicular to each other, and the guide tube is not limited by the turning angle in the optical cable wiring, and the laying angle of the optical cable can be changed as required;

(2) The straight tube is inserted between the first protective shell and the second protective shell, and the end of the straight tube is sealed to prevent foreign matter from entering the guide tube from the end of the straight tube, affecting the normal use of the optical cable;

(3) One end of the optical cable extends out of the end cap from the outlet end to prevent foreign matter from entering the guide tube from between the optical cable and the end cap;

(4) The limit bar is used to limit the relative position between the holding slot and the limit plate, as well as the opening slot and the upper cover, so as to ensure the protection of the optical cable.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Fig. 1 is the perspective view of a kind of optical cable plugging guide tube of the present invention;

Fig. 2 is the perspective view of the end cap of the utility model;

Fig. 3 is the perspective view of the straight pipe of the utility model;

Fig. 4 is the perspective view of the utility model elbow;

Fig. 5 is the structural representation of the elbow of the utility model;

FIG. 6 is a perspective view of the connector of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in FIGS. 1-6 , an optical cable blocking guide tube includes an end cap 1 , a straight tube 2 , a curved tube 3 , a connector 4 and a limit bar 6 .

As shown in Figures 1-6, two ends of the elbow 3 are respectively connected to a straight tube 2;

Among them, as shown in FIG. 1 , FIG. 4 and FIG. 5 , the elbow 3 includes an open slot 31 and an upper cover 32 ;

As a preferred embodiment, a limit bar 6 is also included. The limit bar 6 is located between the upper cover 32 and the opening groove 31. The limit bar 6 includes a first positioning bar 61 and a second positioning bar 62. The bar 61 and the second positioning bar 62 are both triangular steel, the first positioning bar 61 is fixedly arranged on the upper cover 32, the second positioning bar 62 is fixedly arranged on the opening slot 31, the upper cover 32 and the opening slot 31 pass through the limiting bar 6's limit snaps together.

The opening slot 31 includes a first straight slot 311, a connecting slot 312 and a second straight slot 313. The connecting slot 312 is arranged between the first straight slot 311 and the second straight slot 313. The first straight slot 311 The second straight grooves 313 are perpendicular to each other.

The upper cover 32 includes a first snap-fit cover 321 , a connection cover 322 and a second snap-fit cover 323 ; the first snap-fit cover 321 is snapped on the first straight groove 311 ; the connecting cover 322 is snapped on the connecting groove 312 ; The second snap cover 323 is snapped on the second straight groove 313 .

As a preferred embodiment, the elbow 3 further includes a bending segment fixing member 33, the bending segment fixing member 33 includes an upper fixing ear 331 and a lower fixing ear 332, and the upper fixing ear 331 is fixedly arranged on the connecting cover 322, The lower fixing lugs 332 are fixedly arranged on the connecting groove 312, and the upper fixing lugs 331 and the lower fixing lugs 332 are fixedly arranged by the cooperation of bolts and nuts.

As a preferred embodiment, the bending segment fixing members 33 include two, one of which is arranged on one side of the connection cover 322 , the other is arranged at the other side of the connection cover 322 , and the bending segment fixing members are arranged on both sides of the connection cover 322 33. The connection cover 322 and the connection groove 312 are fixed more firmly.

As shown in Figures 1 and 3, the straight pipe 2 includes a holding groove 21 and a limiting plate 22. The optical cable 5 extends along one end of the holding groove 21 to the other end of the holding groove 21; the limiting plate 22 covers the holding groove 21. the opening of the slot 21.

As a preferred embodiment, the limiting plate 22 is connected with the first positioning bar 61 , the holding slot 21 is connected with the second positioning bar 62 , the holding slot 21 and the limiting plate 22 are connected between the first positioning bar 61 and the second positioning bar 62 . The second positioning strip 62 is buckled into a whole under the limiting action of the second positioning strip 62 .

As a preferred embodiment, it also includes several tightening rings 7, the tightening rings 7 include a first tightening ring 71 and a second tightening ring 72, the first tightening ring 71 and the second tightening ring 72 The fastening ring 7 is wound around the straight pipe 2 through the matching and fastening arrangement of the bolt and the nut. 22 is fixed as a whole to prevent foreign objects from entering the inside of the guide tube.

As shown in FIGS. 1 , 4 and 6 , the connector 4 includes a first protective shell 41 and a second protective shell 42 , and the end of the elbow 3 connected to the straight pipe 2 is fixedly arranged on the Between the first protective shell 41 and the second protective shell 42 , the ends connecting the bent pipe 3 and the straight pipe 2 are connected as a whole through the first protective shell 41 and the second protective shell 42 .

As shown in FIG. 1 and FIG. 2 , the end cover 1 includes a first end fixing groove 11 , a second end fixing groove 12 , an outlet end 13 and a sealing gasket 14 .

The first end fixing groove 11 and the second end fixing groove 12 are symmetrically arranged with respect to the sealing gasket 14, and the sealing gasket 14 is arranged along the openings of the first end fixing groove 11 and the second end fixing groove 12; The first fixing groove 11 and the second end fixing groove 12 are fixedly arranged through the cooperation of bolts and nuts.

As a preferred embodiment, the outlet end 13 is provided at the end of the end cap 1 away from the straight pipe 2 ; the end of the optical cable 5 extends out of the end cap 1 from the outlet end 13 .

As a preferred embodiment, the end of the straight pipe 2 away from the elbow 3 is inserted between the first end fixing groove 11 and the second end fixing groove 12, and the straight pipe 2 is inserted at the first end and fixed Between the groove 11 and the second end fixing groove 12, after the first end fixing groove 11 and the second end fixing groove 12 are fixed by bolts and nuts, it is difficult for the straight pipe 2 to fix the grooves 11 and the second end from the first end. The end fixing grooves 12 are separated, and the connection method is simple and reliable.

As shown in FIG. 1, it also includes a substation bracket 8 and a stabilizer 9. One end of the stabilizer 9 is fixedly arranged on the straight pipe 2, and the other end is fixedly arranged on the substation bracket 8. The substation bracket 8 and the stabilizer 9 are used for the entire guide pipe. play a stabilizing role.

The installation method of the optical cable blocking guide tube is as follows:

1. Measurement of the underground part

Calculate the path and position of the underground part of the optical cable, and dig out the trench.

2. Remove the old guide tube (ignore this step if it is installed for the first time).

3. Installation of guide tube

According to the direction of the optical cable, the straight pipe 2 is fixed in the order from top to bottom, and the straight pipe 2 is fixed by the fastening ring 7, and then the straight pipe 2 is connected to the curved pipe 3 at the bending position, and the straight pipe 2 and the curved pipe 3 are connected. They are fixed by the connecting piece 4, and the other end of the elbow 3 is also connected to the straight pipe 2.

The ends of the straight pipe 2 away from the curved pipe 3 are inserted between the end caps 1, and then the first end fixing groove 11 and the second end fixing groove 12 are fixed by bolts and nuts. At this time, the straight pipe 2 and the end cover are 1 as a whole.

The gap between the first end fixing groove 11 and the second end fixing groove 12 and the gap between the holding groove 21 and the limiting plate 22 are sealed with sealant.

4. Landfill fixation

The soil is backfilled into the trench, and the straight pipe 2 is fixed on the substation support 8 by the stabilizer 9 .

The above descriptions are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the within the scope of protection of the present invention.

Claims (10)

1. An optical cable plugging guide tube comprises an end cover (1), a straight tube (2), a bent tube (3) and a connecting piece (4), wherein,

the method is characterized in that: two ends of the bent pipe (3) are respectively connected with a straight pipe (2); the end cover (1) is arranged at one end of each straight pipe (2) far away from the bent pipe (3);

the elbow (3) comprises an open slot (31) and an upper cover (32); an optical cable (5) is arranged in the open slot (31);

the opening groove (31) comprises a first straight groove (311), a connecting groove (312) and a second straight groove (313);

the connecting groove (312) is arranged between the first straight groove (311) and the second straight groove (313), and the first straight groove (311) and the second straight groove (313) are arranged perpendicularly to each other;

the upper cover (32) comprises a first buckling cover (321), a connecting cover (322) and a second buckling cover (323);

the first buckling cover (321) is buckled on the first straight groove (311); the connecting cover (322) is buckled on the connecting groove (312); the second buckling cover (323) is buckled on the second straight groove (313);

the straight pipe (2) comprises a containing groove (21) and a limiting plate (22);

the optical cable (5) extends to the other end of the containing groove (21) along one end of the containing groove (21); the limiting plate (22) covers the opening of the containing groove (21);

the end cover (1) comprises a first end fixing groove (11), a second end fixing groove (12) and an outlet end (13);

the first end fixing groove (11) and the second end fixing groove (12) are symmetrically arranged, and openings of the first end fixing groove (11) and the second end fixing groove (12) are buckled together; the outlet end (13) is arranged at one end of the first end fixing groove (11) and the second end fixing groove (12); the end part of the optical cable (5) extends out of the end cover (1) from the outlet end (13);

the connecting piece (4) comprises a first protective shell (41) and a second protective shell (42);

the end part of the bent pipe (3) connected with the straight pipe (2) is fixedly arranged between the first protective shell (41) and the second protective shell (42).

2. The optical cable occlusion guide tube of claim 1, wherein: the end part of the straight pipe (2) far away from the bent pipe (3) is inserted between the first end fixing groove (11) and the second end fixing groove (12).

3. The optical cable occlusion guide tube of claim 1, wherein: still include spacing (6), hold and all be provided with spacing (6) between groove (21) and limiting plate (22) and open slot (31) and upper cover (32), spacing (6) are including first location strip (61) and second location strip (62), and first location strip (61) are the triangle steel with second location strip (62), and first location strip (61) and second location strip (62) are in the same place in the lock joint.

4. The optical cable occlusion guide tube of claim 1, wherein: return bend (3) still include bend section mounting (33), bend section mounting (33) are including last fixed ear (331) and fixed ear (332) down, go up fixed ear (331) and fix the setting on connecting lid (322), fixed ear (332) are fixed to be set up on connecting groove (312) down, go up fixed ear (331) and fix down the fixed setting of cooperation through bolt and nut between ear (332).

5. The optical cable occlusion guide tube of claim 4, wherein: the bending section fixing piece (33) comprises two bending section fixing pieces, wherein one bending section fixing piece is arranged on one side of the connecting cover (322), and the other bending section fixing piece is arranged on the other side of the connecting cover (322).

6. The optical cable occlusion guide tube of claim 1, wherein: the end cover (1) further comprises a sealing gasket (14), the sealing gasket (14) is arranged between the first end fixing groove (11) and the second end fixing groove (12), and the first end fixing groove (11) and the second end fixing groove (12) are fixedly arranged through matching of bolts and nuts.

7. The optical cable occlusion guide tube of claim 1, wherein: the pipe fitting further comprises a plurality of fastening rings (7), and the fastening rings (7) are wound on the straight pipe (2) and the bent pipe (3).

8. The optical cable occlusion guide tube of claim 7, wherein: the fastening ring (7) comprises a first fastening ring (71) and a second fastening ring (72), and the first fastening ring (71) and the second fastening ring (72) are fastened through matching of bolts and nuts.

9. The optical cable occlusion guide tube of claim 1, wherein: the outlet end (13) is arranged at one end, far away from the straight pipe (2), of the end cover (1).

10. The optical cable occlusion guide tube of claim 1, wherein: the transformer substation support is characterized by further comprising a transformer substation support (8) and a stabilizing piece (9), wherein one end of the stabilizing piece (9) is fixedly arranged on the straight pipe (2), and the other end of the stabilizing piece (9) is fixedly arranged on the transformer substation support (8).

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