CN101752820A

CN101752820A - Underground cable protective sleeve

Info

Publication number: CN101752820A
Application number: CN 201010113915
Authority: CN
Inventors: 周建华
Original assignee: 周建华
Current assignee: JIAXING ZHONGLIAN COMMUNICATIONS FACILITIES CO., LTD.
Priority date: 2010-02-24
Filing date: 2010-02-24
Publication date: 2010-06-23
Anticipated expiration: 2030-02-24
Also published as: CN101752820B

Abstract

The invention relates to an underground cable protective sleeve which comprises an upper group of semicircular pipes and a lower group of semicircular pipes, wherein each group of semicircular pipes (1) comprise a plurality of segments of independent semicircular pipes, both ends of each segment of independent semicircular pipe are respectively provided with a flange, sections of the two flanges are respectively mutually inserted, the section of the first flange (2) is outwards turned and then backwards turned, the section of the second flange (3) is outwards turned, forwards turned and then inwards and backwards turned, the upper group of semicircular pipes and the lower group of semicircular pipes are mutually inserted together, joints (5) among the segments of the upper group of semicircular pipes and joints (6) among the segments of the lower group of semicircular pipes are mutually staggered, and the whole underground cable protective sleeve becomes a whole. When in use, the lower group of semicircular pipes are cushioned below an underground cable segment by segment and inserted into the upper group of semicircular pipes segment by segment until the whole underground cable is packaged by the underground cable protective sleeve, the underground cable protective sleeve has strong protective capability for the cable, the cable needs not to be cut, and the excavated earth volume is smaller.

Description

Underground cable protective sleeve

Technical field

The present invention relates to the protective device of a kind of underground cable, optical cable, a kind of underground cable protective sleeve.

Background technology

When building Architectural Equipments such as highway, railway, petroleum pipeline, urban road, hydraulic and electric engineering construction, often need carry out reinforcement protection to the underground communications cable.A kind of method be lay again after cable is cut off, poling protection.This method expense height, and need to interrupt communication traffic and carry out cutover impacts business, and, when fault such as disconnected fibre of optical cable or cable gas leakage takes place, will bring bigger difficulty to looking into to repair, the increase maintenance cost in protection tube.Another kind is that steel pipe is dissected out, and is encapsulated into the cable outside.Technology is coarse because steel pipe is dissected for this method, and the cable after sealing is subject to section and scratches, and has big potential safety hazard.Carrying out body during construction connects and seals work of treatment such as wrapping and also take a lot of work, require great effort.

Summary of the invention

The present invention is intended to propose a kind of reinforcement protection device of wieldy underground cables, a kind of underground cable protective sleeve.

This underground cable protective sleeve comprises group semicircle pipe and organizes the semicircle pipe down; every group of semicircle pipe comprises several sections independently semicircle pipes; there is a flange both sides of every section semicircle pipe; these two flange are respectively the two class flange of cross sectional shape for plugging together mutually; wherein the cross sectional shape of first kind flange is turned back again after outwards turning back backward, and the cross sectional shape of the second class flange is inwardly turned back forward again, turned back backward for after outwards turning back.Last group of semicircle pipe plugs together mutually together with group semicircle pipe down, on organize the semicircle pipe first kind flange insert in the second class flange of group semicircle pipe down, the first kind flange of following group semicircle pipe inserts in the second class flange of upward organizing the semicircle pipe.Have at least the length of one section length and other each section inequality in last group of semicircle pipe, on organize between each section of semicircle pipe seam and down the seam between each section of group semicircle pipe stagger mutually.

When this underground cable protective sleeve uses; to organize the below that the semicircle pipe is sunken cord with being encased inside piecemeal down, whenever be encased inside one section after, promptly insert one section from its end and organize the semicircle pipe; all wrap up until the buried cable of whole piece by underground cable protective sleeve, then can the earth backing landfill.When protecting cable, will not cut off by cable with this underground cable protective sleeve.Combine owing to upper and lower two groups of semicircle pipes rely on its flange to plug together from the end, upper and lower two groups of semicircle pipe jointings get very firm, and cable is had very strong protective capability.Again owing to the seam between each section of seam between each section of last group of semicircle pipe and following group semicircle pipe staggers mutually; make whole underground cable protective sleeve become as a whole; only need to fix with anchor ear at whole underground cable protective sleeve two ends, the seam crossing at underground cable protective sleeve middle part does not need to reinforce separately.This underground cable protective sleeve is that segmentation is packed into when installing, thereby can reduce the earth volume of excavation.

Description of drawings

Fig. 1 is a kind of cutaway view of semicircle pipe;

Fig. 2 is upper and lower two groups of schematic diagrams that the semicircle pipe matches;

Fig. 3 is the structure chart of whole underground cable protective sleeve;

Fig. 4 is the structure chart of another kind of whole underground cable protective sleeve;

Fig. 5 is the another kind of structure chart of semicircle pipe;

Fig. 6 is the schematic diagram of the anabolic process of semicircle pipe shown in Figure 5 and semicircle pipe shown in Figure 1;

Fig. 7 makes up the schematic diagram that finishes for semicircle pipe shown in Figure 5 and semicircle pipe shown in Figure 1;

Fig. 8 is the another kind of structure chart of underground cable protective sleeve;

Fig. 9 is one of installation process of underground cable protective sleeve;

Figure 10 be underground cable protective sleeve installation process two;

Figure 11 be underground cable protective sleeve installation process three;

Figure 12 is a kind of structure chart of bend pipe;

Figure 13 is the first half of the bend pipe among Figure 12;

Figure 14 is the latter half of the bend pipe among Figure 12;

Figure 15 is second kind of structure chart of bend pipe;

Figure 16 is the Outboard Sections of the bend pipe among Figure 15;

Figure 17 is the inside part of the bend pipe among Figure 15;

Figure 18 is the application schematic diagram of bend pipe.

Embodiment

As shown in Figure 3, this underground cable protective sleeve comprises upper and lower two groups of semicircle pipes, and every group of semicircle pipe comprises several sections independently semicircle pipes.As shown in Figure 1, there is a flange both sides of every section semicircle pipe 1, these two flange are respectively the two class flange of cross sectional shape for plugging together mutually, wherein the cross sectional shape of first kind flange 2 is turned back again after outwards turning back backward, and the cross sectional shape of the second class flange 3 is inwardly turned back forward again, turned back backward for after outwards turning back.As shown in Figure 2, on organize the semicircle pipe and plug together mutually together with following group semicircle pipe, on organize the semicircle pipe first kind flange 2 insert in the second class flange 3 of group semicircle pipe down, the first kind flange 2 of following group semicircle pipe inserts in the second class flange 3 of upward organizing the semicircle pipe.As shown in Figure 3, on to organize the length of the length that has one section in the semicircle pipe at least and other each section inequality, on organize between each section of semicircle pipe seam 5 and down the seam 6 between each section of group semicircle pipe stagger mutually.The semicircle pipe 15 of going up the two ends in the group semicircle pipe shown in Fig. 3 is short than other semicircle pipe, its length is half of other semicircle pipe 16, other semicircle length of tube equates, thereby guaranteed that the seam 5 between each section of last group of semicircle pipe staggers mutually with seam 6 between each section of organizing the semicircle pipe down.The semicircle pipe 15 of going up top in semicircle pipe terminal in the group semicircle pipe and the following group semicircle pipe shown in Fig. 4 is shorter, be other half of length of semicircle pipe 16, can realize that also the seam 5 between each section of group semicircle pipe staggers mutually with seam 6 between each section of organizing the semicircle pipe down.

Going up in the group semicircle pipe of this underground cable protective sleeve can also have one section second kind of semicircle pipe 7 shown in Figure 5 at least; a flange of this second kind of semicircle pipe is a first kind flange 2; its cross sectional shape is turned back again after outwards turning back backward; another flange of this second kind of semicircle pipe is the 3rd class flange 8, and its cross sectional shape is inwardly turned back for turning back forward after outwards turning back again.Needn't peg graft from the end of semicircle pipe when this second kind of semicircle pipe installed and can adopt the method for engaging: as shown in Figure 6, the first kind flange 2 of second kind of semicircle pipe 7 colluded mutually with the second class flange 3 of first kind of semicircle pipe 1 (being the semicircle pipe of structure shown in Figure 1) close, then with second kind of semicircle pipe 7 to pressing down, rely on the elasticity of pipe, make the 3rd class flange 8 of second kind of semicircle pipe 7 snap into the outside of the first kind flange 2 of first kind of semicircle pipe 1, become state shown in Figure 7, promptly finished installation.

Use above-mentioned second kind of semicircle pipe, can make the installation of underground cable protective sleeve more convenient for the most last second section in one group of underground cable protective sleeve in the group semicircle pipe.Its installation process is shown in Fig. 9,10,11.As shown in Figure 9, before underground cable protective sleeve was installed the last section, the latter end 9 that will go up group semicircle pipe earlier was inserted to down on the most last second section 18 that organizes the semicircle pipe, and the latter end 19 that will organize the semicircle pipe is then down laid and put in place; As shown in figure 10, will go up again and move on to down the end of organizing the latter end 19 of semicircle pipe behind the latter end 9 of group semicircle pipe; At last, as shown in figure 11, the most last second section 17 (its structure is second kind of semicircle pipe) of last group of semicircle pipe is engaged to down on the most last second section 18 and the latter end 19 of group semicircle pipe, whole protective sleeves just install.Can also respectively add an anchor ear at the most last second section 17 two ends of last group of semicircle pipe, make it more firm.Make in this way, can reduce the excavation length of cable, reduce workload.

This underground cable protective sleeve can also comprise the crooked bend pipe 10 of one-tenth 90 degree as shown in figure 12; bend pipe can be divided into vertically as Figure 13 and upper and lower two halves shown in Figure 14; the internal diameter of bend pipe is a bit larger tham two semicircle pipes shown in Figure 21 external diameter after combined, and respectively there are two breach 11 that are used for embedding the flange of two semicircle pipes at the two ends of bend pipe.

The structure of above-mentioned bend pipe 10 also can be as Figure 15, Figure 16 and the vertical vertically inside and outside two halves that are divided into shown in Figure 17.

The application of above-mentioned bend pipe as shown in figure 17, bend pipe is used in the turning of cable, the protective sleeve shown in the chromosome 3 can be respectively inserted at the two ends of bend pipe 10.The flange combination 14 of the end of protective sleeve embeds in the breach 11 at bend pipe two ends.The two ends of bend pipe can fasten with anchor ear respectively.Because bend pipe vertically in two, install, overhaul all very convenient.

The cross sectional shape of the semicircle pipe in this underground cable protective sleeve can be a circular arc shown in Figure 1, and several reinforcements 4 can be arranged above.The cross sectional shape of above-mentioned semicircle pipe also can be a broken line shape shown in Figure 8, and two semicircle pipes are combined into a regular polygon.This underground cable protective sleeve can be made with the method for roll of steel plate press-bending folding.

Claims

1. underground cable protective sleeve; comprise group semicircle pipe and organize the semicircle pipe down; every group of semicircle pipe comprises several sections independently semicircle pipes; there is a flange both sides of every section semicircle pipe (1); these two flange are respectively the two class flange of cross sectional shape for plugging together mutually; wherein the cross sectional shape of first kind flange (2) is turned back again after outwards turning back backward; the cross sectional shape of the second class flange (3) is inside for turning back forward after outwards turning back again; turn back backward; last group of semicircle pipe plugs together mutually together with following group semicircle pipe; the first kind flange of last group of semicircle pipe inserts in the second class flange of organizing the semicircle pipe down; the first kind flange of organizing the semicircle pipe down inserts in the second class flange of going up group semicircle pipe; it is characterized in that having at least in the group semicircle pipe one section length inequality with the length of other each section, on the seam (5) organized between each section of semicircle pipe stagger mutually with seam (6) between each section of time organizing the semicircle pipe.

2. underground cable protective sleeve as claimed in claim 1; it is characterized in that having at least one section to be second kind of semicircle pipe (7) in the group semicircle pipe; a flange of this second kind of semicircle pipe is first kind flange (2); its cross sectional shape is turned back again after outwards turning back backward; it is the 3rd class flange (8) that another of this second kind of semicircle pipe turns over, and its cross sectional shape is inwardly turned back for turning back forward after outwards turning back again.

3. underground cable protective sleeve as claimed in claim 1 or 2; it is characterized in that it also comprises into the crooked bend pipe (10) of 90 degree; bend pipe is divided into upper and lower two halves vertically; the internal diameter of bend pipe is a bit larger tham the external diameter of described two semicircle pipes (1) after combined, and respectively there are two breach (11) that are used for embedding the flange of two semicircle pipes at the two ends of bend pipe.

4. underground cable protective sleeve as claimed in claim 3 is characterized in that described bend pipe (10) vertically is divided into inside and outside two halves vertically.