CN111722334A - A support type optical cable down-conducting protective tube blocking device and method - Google Patents

Abstract

The invention relates to a supporting type optical cable down-conducting protection pipe blocking device, which is characterized in that it is composed of a supporting hoop and a blocking protection tray, and the blocking protection tray is nested in the supporting hoop. The invention also relates to a method for plugging a support type optical cable down protection tube, which is characterized in that: in the first step, the support hoop is tightly fixed with the optical cable down protection tube; in the second step, the inner part of the optical cable down protection tube is Install the blocking protection tray, and pass the optical cable through the threading hole; the third step, fill the blocking protection tray with the blocking fireproof glue, and use the tool to tamp the blocking fireproof glue while filling to form a cylinder base; In the fourth step, a cone with an apex angle of 60° is formed on the base of the formed cylinder by using sealing fireproof glue. The invention is scientific and reasonable in design, has the advantages of good blocking protection effect, convenient installation, long service life and easy realization, and is a highly innovative supporting type optical cable down protection pipe blocking device and method.

Description

A support type optical cable down-conducting protective tube blocking device and method

technical field

The invention belongs to the technical field of electrical equipment, and relates to an optical cable down-conducting protection tube, in particular to a support type optical cable down-conducting protective tube blocking device and method.

Background technique

Optical fiber communication has a series of characteristics such as transmission frequency bandwidth, strong anti-interference and low signal attenuation, and has been widely used and developed, and has now become the main transmission method in power communication. Up to now, my country has built a power communication network with fiber optic cable as the main, covering the whole country. The safe and stable operation of power communication optical cables provides strong support for important services such as inter-station protection channels, dispatching data private networks, integrated service data networks, and remote video conferences.

At present, OPGW optical cable and ADSS optical cable are widely used in power communication network because of their high safety, strong electromagnetic field resistance and adaptability to power transmission lines. The guiding optical cable is the connection part between the line and the communication room of the substation. The optical cable is erected to the substation gate structure with the primary line, and then enters the communication room after passing through the redundant cable rack, the optical cable joint box, and the protection pipe. Faults are more frequent where the optical cable enters the ground through the protection tube, which is a weak link of the optical cable line and a hidden danger for the safe and stable operation of the communication network.

During the construction of the optical cable in the substation, the plugging of the guiding optical cable is required in DL/T5344-2006 "Acceptance Standards for Power Optical Fiber Communication Engineering", which requires "the buried part of the cable trench caused by the guiding optical cable led down from the junction box shall be hot-dip galvanized. Zinc steel pipe protection, waterproof sealing at both ends of the steel pipe"; in QGDW758-2012 "Technical Specifications for the Installation of Communication Optical Cables in Power Systems", it is required that "the optical cable is led down from the component to the buried part of the cable trench to be protected by hot-dip galvanized steel pipe, and worn through Insulation casing is used for insulation, and fireproof mud is used for waterproof sealing at both ends." There is currently no unified construction standard for sealing.

In the actual construction process, the traditional fire-proof mud is usually used for direct plugging, and the plugging part is completely exposed.

This blockage mainly has the following problems:

1. Since the fireproof glue has no support at the bottom when it is blocked, the glue is prone to loosening and cracking in the long-term exposure, and even all the sealing glue collapses, falls off, and is lost. protection, may cause damage to the optical cable, affect the normal operation of the optical cable, and then affect the safe and stable operation of the power grid;

2. Due to the direct contact with the external environment, the outdoor weather conditions are complex, and the cement is easily softened by the penetration of external rainwater and moisture, and then deformed and loosened, which affects the blocking effect;

3. In winter, it is rainy and snowy in the north, and the day and night are always in the environment of zero above and below zero. During the day, the water penetrates into the glue, and at night, it is easy to freeze and squeeze the communication optical cable, which seriously affects the attenuation of the optical cable, and even interrupts due to excessive attenuation;

4. During the sealing process of fireproof glue, the bottom is suspended without support, it is not easy to fix and form, and the sealing process is difficult.

In order to solve the above-mentioned problems in blocking and ensure normal use in a long-term complex environment, a blocking protection device for guiding optical cables with good blocking protection effect, convenient installation and long service life is urgently needed.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the deficiencies of the prior art, and to provide a support-type optical cable down-conducting protection pipe blocking device and method with good blocking protection effect, convenient installation, long service life and easy realization.

The present invention solves its technical problem by adopting the following technical solutions to realize:

A support type optical cable down-conducting protection pipe blocking device is characterized in that: it is composed of a support hoop and a blocking protection tray, and the blocking protection tray is nested in the support hoop.

Moreover, the support hoop is composed of two semi-circular hoop bodies that are symmetrical to each other on the left and right sides. Both ends of the two semi-circular hoop bodies are provided with connecting pieces that are perpendicular to the outer walls of the respective hoop. A connecting hole is provided, and the two semicircular hoop bodies are connected through the cooperation of bolts, nuts and the connecting holes at both ends; a supporting sheet is horizontally extended outward from the upper end of the middle outer wall of each semicircular hoop body, and the A first mounting hole is provided on the support sheet.

Moreover, the blocking protection tray is formed by splicing together two mutually symmetrical semi-cylindrical groove bodies, the upper end and the inner side of each semi-cylindrical groove body are open structures, and the bottom surface of each semi-cylindrical groove body is open. The edges are provided with semi-circular openings at symmetrical intervals. After the two semi-cylindrical groove bodies are assembled, the left and right openings form threading holes, and the upper end surface of the middle part of each semi-cylindrical groove body corresponds to the support hoop A mounting sheet is installed at the position of the supporting sheet, and a second mounting hole is provided on each mounting sheet at a position corresponding to the first mounting hole; each of the semi-cylindrical groove bodies passes through the first mounting hole and the second mounting hole for bolts and nuts. The mating connection is on the inner side of each corresponding semicircular hoop body.

Moreover, the connecting hole is a threaded hole.

Moreover, the threading holes are 2-5 evenly spaced.

Moreover, the number of the threading holes is three, and the three threading holes are arranged at every 1/4 diameter along the radial direction of the bottom surface of the blocking protection tray.

In addition, the inner diameter of the support hoop is adapted to the outer diameter of the optical cable down-going protection tube, and the outer diameter of the blocking protection tray is adapted to the inner diameter of the optical cable down-down protection tube.

A method for plugging a support-type optical cable down-conducting protective tube, characterized in that it comprises the following steps:

In the first step, a worker holds two pieces of support hoop and places it on the top of the protection tube of the optical cable, and another worker uses bolts and nuts to fix the two support hoop as a whole. Lead down the protective tube tightly fixed;

In the second step, the staff places the blocking protection tray inside the protection tube of the optical cable, and connects the two semi-cylindrical grooves on it with the two semi-circular hoop supporting the hoop respectively, and the optical cable is connected. Pass through the threading hole formed by two semi-cylindrical groove bodies;

In the third step, the staff fills the blocking protection tray with blocking fireproof mortar, and uses tools to compact the blocking fireproof mortar while filling to form a cylindrical base;

The fourth step is to form a cone with an apex angle of 60° on the base of the formed cylinder by plugging fireproof glue.

Moreover, the tool is a trowel or rubber hammer.

Moreover, the height of the cylindrical base is flush with or higher than the upper end surface of the blocking protection tray.

The advantages and positive effects of the present invention are:

1. The plugging device and method of the support type optical cable down protection pipe can prevent the entry of rainwater; by supporting and fixing the plugging fireproof cement, the probability of the plugging mud being loose, cracked, collapsed and falling off can be reduced , prolong the life of the blocking material; the blocking protection tray adopts a rigid structure, which can effectively prevent the failure of the optical cable caused by the freezing and expansion of the blocking fire-proof cement in winter; it is mainly connected by a rigid structure and bolts, and it is easy to install and use , The sealing effect is good, to ensure the normal operation of the power communication network.

2. In this method for blocking the down-conducting protective tube of the support type optical cable, a cone is arranged on the base of the cylinder, which effectively avoids the accumulation of rainwater and prevents it from infiltrating and causing damage to the optical cable.

3. The present invention has scientific and reasonable design, and has the advantages of good blocking protection effect, convenient installation, long service life and easy implementation, and is a highly innovative supporting type optical cable down-conducting protection pipe blocking device and method.

Description of drawings

Fig. 1 is the assembly drawing (section view) of the present invention;

Fig. 2 is the structural representation of one of the semicircular hoop bodies of the support hoop of the present invention;

Fig. 3 is the structural schematic diagram of the present invention that the support hoop is assembled on the optical cable down protection tube;

4 is a schematic structural diagram of one of the semi-cylindrical groove bodies of the blocking protection tray of the present invention;

FIG. 5 is a schematic structural diagram of the assembly of the blocking protection tray on the optical cable down protection tube according to the present invention;

FIG. 6 is a state diagram after the construction of the present invention is completed.

Description of reference numerals

1-Installation sheet, 2-Support sheet, 3-Support hoop, 4-Optical cable down protection tube, 5-Blocking protection tray, 6-Wire hole, 7-First installation hole, 8-Connecting sheet, 9 -Semi-circular ferrule, 10-Second mounting hole, 11-Semi-cylindrical groove, 12-Cone, 13-Optical cable, 14-Cylinder base.

Detailed ways

Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

A support-type optical cable down-conducting protective tube blocking device is innovative in that it is composed of a support hoop 3 and a blocking protection tray 5, and the blocking and protection tray is nested in the support hoop.

The described support hoop is composed of two semi-circular hoop bodies 9 symmetrical to each other on the left and right sides. Both ends of the two semi-circular hoop bodies are provided with connecting pieces 8 that are perpendicular to the outer wall of the respective hoop. A connecting hole is provided, and the two semi-circular hoop bodies are connected through the cooperation of bolts and nuts with the connecting holes at both ends; a supporting sheet 2 is horizontally extended outward from the upper end of the middle outer wall of each semi-circular hoop body. A first mounting hole 7 is provided on the support sheet.

The said blocking protection tray is made up of two semi-cylindrical groove bodies 11 which are symmetrical to each other on the left and right. Semi-circular openings are arranged at symmetrical intervals. After the two semi-cylindrical groove bodies are combined, the left and right openings form threading holes 6, and the upper end surface of the middle part of each semi-cylindrical groove body corresponds to a supporting hoop. A mounting sheet 1 is installed at the position of the supporting sheet, and a second mounting hole 10 is provided on each mounting sheet at the position corresponding to the first mounting hole; The fitting of the mounting holes is connected on the inner side of each corresponding semicircular hoop body.

The connecting hole is a threaded hole.

The number of the threading holes is 3, and the three threading holes are arranged at every 1/4 diameter along the radial direction of the bottom surface of the blocking protection tray.

The inner diameter of the support hoop is adapted to the outer diameter of the optical cable down protection tube 4 , and the outer diameter of the blocking protection tray is adapted to the inner diameter of the optical cable down protection tube.

A method for plugging a support-type down-conducting protective tube of an optical cable, which is innovative in that it includes the following steps:

In the first step, a worker holds two pieces of support hoop and places it on the top of the protection tube of the optical cable, and another worker uses bolts and nuts to fix the two support hoop as a whole. The lead down protection tube is tightly fixed;

In the second step, the staff places the blocking protection tray inside the protection tube of the optical cable, and connects the two semi-cylindrical grooves on it with the two semi-circular hoop supporting the hoop respectively, and the optical cable is connected. 13 is pierced through the threading hole formed by the two semi-cylindrical groove bodies;

In the third step, the staff fills the blocking protection tray with the blocking fireproof mortar, including the interior of the blocking protection tray and the gap between it and the optical cable lead-down protection pipe. a cylindrical base 14;

In the fourth step, a cone 12 with an apex angle of 60° is formed on the formed cylinder base by using blocking fireproof glue. Prevent rainwater retention and infiltration.

The tool is a tile knife or a rubber hammer.

The height of the cylinder base is flush with or higher than the upper end face of the blocking protection tray.

The plugging device and the construction method block all the protection pipes for guiding optical cables in the substation, which can completely solve the problem of blocking mud and water in the protection pipes to form ice, improve the reliability of operating optical cables, and do not need to be repeatedly blocked. Save a lot of manpower and material resources. At the same time, the device is convenient to use and has a sturdy structure.

Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims (10)

1. The utility model provides a support formula optical cable draws down protection tube plugging device which characterized in that: the plugging protection device is composed of a support hoop and a plugging protection tray, wherein the plugging protection tray is nested in the support hoop.

2. The apparatus of claim 1, wherein the protective tube comprises: the supporting hoop is composed of two semicircular hoop bodies which are symmetrical left and right, connecting sheets which are perpendicular to the outer walls of the respective hoop bodies are arranged at two ends of each semicircular hoop body, connecting holes are formed in the connecting sheets, and the two semicircular hoop bodies are connected with the connecting holes at two ends through the matching of bolts and nuts; the upper end of the outer wall of the middle part of each semicircular hoop body extends outwards horizontally to be provided with a bearing sheet, and the bearing sheet is provided with a first mounting hole.

3. The apparatus of claim 2, wherein the protective tube comprises: the connecting hole is a threaded hole.

4. The apparatus of claim 2, wherein the protective tube comprises: the plugging protection tray is formed by splicing two semi-cylindrical groove bodies which are symmetrical left and right, the upper end and the inner side of each semi-cylindrical groove body are of an open structure, semicircular openings are symmetrically arranged at intervals on the edge of the bottom surface of each semi-cylindrical groove body, the left and right openings form threading holes after the two semi-cylindrical groove bodies are spliced, mounting pieces are mounted on the upper end surface of the middle part of each semi-cylindrical groove body corresponding to the positions for supporting the hoop bearing pieces, and second mounting holes are arranged on each mounting piece corresponding to the positions of the first mounting holes; each semi-cylindrical groove body is connected to the inner side of each corresponding semi-cylindrical hoop body through the matching of a bolt, a first mounting hole of a nut and a second mounting hole.

5. The apparatus of claim 4, wherein the protective tube comprises: the threading holes are 2-5 evenly arranged at intervals.

6. The apparatus of claim 4, wherein the protective tube comprises: the number of the threading holes is 3, and the three threading holes are arranged on the bottom surface of the plugging protection tray along the radial direction every 1/4 diameters.

7. The apparatus of claim 1, wherein the protective tube comprises: the inner diameter of the supporting anchor ear is matched with the outer diameter of the optical cable leading-down protection tube, and the outer diameter of the plugging protection tray is matched with the inner diameter of the optical cable leading-down protection tube.

8. A method for plugging a supporting optical cable down-guide protection tube according to claim 1, wherein: the method comprises the following steps:

firstly, one worker holds two supporting hoops and places the supporting hoops at the top end of the optical cable down-leading protection tube, the other worker fixes the two supporting hoops into a whole by using bolts and nuts, and the supporting hoops and the optical cable down-leading protection tube are tightly fixed at the moment;

secondly, the blocking protection tray is placed inside the optical cable down-leading protection tube by a worker, the two semi-cylindrical groove bodies on the blocking protection tray are respectively connected with the two semi-circular hoop bodies of the supporting hoop, and the optical cable penetrates out from a threading hole formed by the two semi-cylindrical groove bodies;

thirdly, filling the plugging protection tray with plugging fireproof mortar by workers, and tamping the plugging fireproof mortar with a tool while filling to form a cylindrical base;

and fourthly, forming a cone with the apex angle of 60 degrees on the formed cylindrical base by using the plugging fireproof daub.

9. The method for plugging a supporting type optical cable down-leading protection tube according to claim 8, wherein: the tool is a cleaver or a rubber hammer.

10. The method for plugging a supporting type optical cable down-leading protection tube according to claim 8, wherein: the height of the cylindrical base is parallel to or higher than the upper end surface of the plugging protection tray.

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