KR100899498B1 - Underground Protective block for electric wire - Google Patents

Abstract

In the present invention, the conduit such as underground transmission cable is maintained by the upper block, the intermediate block and the lower block in which the conduit coupling grooves are formed so as to be disposed in the ground, the upper block, the intermediate block is fixed to the conduit coupling grooves And the protective blocks forming a unit of the lower block can be fixed to each other by fastening means to be maintained without flow in the ground, and also the inflow of the upper block, the middle block and the lower block can be discharged through the drainage channel and the drain hole. By blocking the inflow of inflow water into the conduit in the block, it is possible to prevent safety accidents such as short circuit of the conduit and also to attach a caution guide sign on the upper surface of the protection block of the upper block, middle block and lower block. Wires that can prevent damage from damage caused by excavation, etc. The buried protection block for the ground, in which the conduit such as underground transmission cable is maintained by the upper block, the middle block and the lower block formed with the conduit coupling groove is fixed in the ground, the upper block 100 and the lower block (300) The fastening projections 130 formed with the fastening holes 140 are formed at both ends of the wire), and the wires fastened to each other by the upper and lower blocks 100 and 300 and the bolt nuts 20 and 30 are adjacent to each other. In the general buried protective block, the drainage paths 150, 250, 350 are formed in the longitudinal direction of the upper block 100, the intermediate block 200 and the lower block 300 and the drainage paths 150, 250, 350 are connected to the drain hole 260 through In addition, the fastening projections 130 of the upper block 100 and the lower block 300 are fixed to the underground manhole 10 and the hanger bolt 40.

Upper Block, Middle Block, Lower Block Wire Coupling Groove, Conduit Pipe, Guide Sign Fixing Groove, Caution Sign, Fastening Jaw, Fastening Hole, Drainage, Drain Hole, Bolt Nut

Description

Underground Protective block for electric wire

1 is an exploded perspective view of a buried protective block for a conduit of the present invention,

Figure 2a, b is an exemplary cross-sectional view of the buried protective block for the conduit of the present invention,

Figure 3 is an exemplary view of connecting the buried protective block for the conduit of the present invention with an anchor bolt to the manhole and then connected to each other with bolts, nuts.

Explanation of symbols on the main parts of the drawings

1: conduit 10: manhole

20,30: Bolt nut 100: Upper block

110,210,310: Wire tube coupling groove 120,320: Joint groove

130,330: Fastening protrusions 140,340: Fastening holes

150,250,350: Drainage 160: Guide sign fixing groove

200: middle block 300: down block

400: Caution sign

The present invention relates to a buried protective block for the conduit to keep the underground conduit buried in a protective block, more specifically, the conduit such as underground transmission cable in the upper block, intermediate block and lower block formed with the conduit coupling groove In order to be fixed in the ground to be excreted in the ground, the protective blocks forming the unit of the upper block, the middle block and the lower block in which the conduit is fixed to the conduit coupling grooves can be fixed to each other by fastening means can be maintained without flow in the ground In addition, the inflow of water that penetrates the upper block, the middle block, and the lower block can be discharged through the drainage and drain holes, thereby preventing the inflow of water into the conduit in the protective block to prevent safety accidents such as leakage of the conduit. Attention signs must be placed on the top of the protective blocks of the upper, middle and lower blocks. The present invention relates to a buried protective block for conduits that can prevent damage caused by excavation and other construction work by forming guide guide fixing grooves.

In general, underground transmission cables such as communication or power cables are very important equipment that affects large cities and entire industries in communication and power supply.

The cable wire such as underground transmission cable is protected by the conduit, and the conduit is the upper block and the intermediate block in which the conduit coupling grooves are formed in a hemispherical shape as disclosed in Japanese Patent Application Laid-open No. Hei 8-168153 and Japanese Patent Application Laid-open No. Hei 10-42442. And it is coupled to the lower block so that it can be embedded in one single body.

Then, after the conduit is mounted in the conduit coupling groove in the upper block, the intermediate block and the lower blocks, the coupling means such as the bolt or the nut or the coupling means for the upper block, the intermediate block and the lower block to connect the connection groove and the groove. To be combined with each other.

In the above example, the upper block, the middle block, and the lower block are combined to be mounted in the trap to be sealed by the trap lid, thereby preventing the flow into the cable, but the cost of installing the separate trap is expensive. There is a problem.

In addition, in the latter example, the upper block, the intermediate block and the lower block are fastened by the fastening means, thereby maintaining the mutual block firmly, but there is a problem in that inflow of the inflow water cannot be prevented.

Furthermore, since the above examples are designed so that the conduit can be simply mounted while using the upper block, the middle block and the lower block as a single unit, there is a problem that the connection portion of the upper block, the intermediate block and the lower block sags in the weak ground. In addition, the deflection of the upper block, the intermediate block and the lower block may directly cause fatigue in the conduit, and may cause a safety accident such as an inflow of water into the cable in the conduit.

The present invention is to solve the above problems, the present invention is to provide a conduit such as underground transmission cable is maintained by the upper block, the intermediate block and the lower block formed with the conduit coupling groove is to be disposed in the ground and The lower block can be connected and fixed by the fastening means with the neighboring blocks, so that the upper block, the middle block and the lower block can be prevented from being separated and separated from the protective block extending as a unit. In addition, the present invention forms a drainage groove in the longitudinal direction of the upper block, the middle block and the lower blocks and also the drainage grooves connected to each other to connect the inflow water flowing into the upper block, the intermediate block and the lower blocks to the lower block. It aims to prevent the inflow of water into the conduit by introducing it into the site. In addition, an object of the present invention is to be able to attach a caution guide cover in the longitudinal direction of the upper block, to facilitate the identification of the embedding of the protective block to prevent damage to the conduit due to the excavation of the ground.

According to the present invention, the conduit such as underground transmission cable is held and fixed by the upper block, the intermediate block and the lower block in which the conduit coupling grooves are formed, so that the conduit is formed at both ends of the upper block and the lower block. In the conduit protection block for conduit fixed to each other by fastening with a neighboring upper block and the lower blocks and bolt nuts, a drainage channel is formed in the longitudinal direction of the upper block, the middle block and the lower block, the drainage passage Connected through.

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In addition, the fastening protrusions of the upper block and the lower block of the present invention are fixed by underground manholes and hanger bolts.

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Hereinafter, the configuration and operation of the present invention will be described in detail.

1 is an exploded perspective view of the conduit protection block for conduit of the present invention, and Figures 2a, b is a cross-sectional view of the mating protection block for the conduit buried of the present invention, Figure 3 is also a conduit protection block for conduit of the present invention This is an example of connecting the anchor bolt to the manhole followed by bolts and nuts.

As shown in FIG. 1, the upper block 100, the intermediate block 200, and the lower block 300 form a block as a rectangular body, and the upper block 100, the intermediate block 200, and the lower block ( Hemispherical conduit coupling grooves 110, 210, and 310 are formed in the longitudinal direction of 300, and as shown in FIGS. 2A and 2B, the coupling of the upper block 100, the intermediate block 200 and the lower block 300 will be described later. The conduits 1 can be held and fixed.

Coupling grooves 120 are formed at equal intervals in both longitudinal directions below the upper conduit coupling grooves 110 of the upper block 100, and the upper conduit coupling grooves 310 of the lower block 300 are formed. Coupling grooves 320 are formed at equal intervals in both longitudinal directions.

In addition, the intermediate block 200 to which the upper block 100 and the lower block 300 are coupled has upper and lower conduit coupling grooves 210 and 210 formed on both sides, and the conduit coupling grooves 210 and 210 are formed above, Coupling protrusions 220 and 220 are formed at equal intervals in both longitudinal directions below, and correspond to the upper block 100 and the lower block 300 in the coupling protrusions 220 and 220 as shown in FIGS. 2A and 2B. The coupling grooves 120 and 320 are combined.

In addition, as shown in FIGS. 1 to 3, in the present invention, fastening protrusions 130 and 330 formed with fastening holes 140 and 340 are formed at both ends of the upper block 100 and the lower block 300, and the adjacent upper block is formed. 100 and the lower blocks 300 and the bolt nuts (20, 30) are to be fastened to each other. The fastening protrusion projections 130 and 330 and the fastening holes 140 and 340 are integrally formed at the time of forming the upper block 100 and the lower block 300.

In addition, as shown in FIG. 3, the fastening protrusions 130 and 330 of the upper block 100 and the lower block 300 are fixed to the underground manhole 10 and the hanger bolt 40, and adjacent to each other. As described above, the block 100 and the lower blocks 300 may be continuously fixed by fastening with the bolt nuts 20 and 30.

In addition, the present invention, as shown in Figs. 1 and 2a, b and the drainage paths (150, 250, 350) is formed in the longitudinal direction of the upper block 100, the intermediate block 200 and the lower block 300 and the drainage paths (150, 250, 350) 260 is connected through.

2A and 2B, drainage paths 150 and 350 are drilled in the longitudinal direction in the upper block 100 and the lower block 300, and the drainage path 260 is formed in the middle block 200 while the drainage path 250 is drilled. ) Is vertically drilled. The inflow water of the upper block 100, the intermediate block 200, and the lower block 300 is eventually passed through the drainage path 350 of the lower block 300 through the drainage paths 150 and 250 and the drain hole 260. It is drained to the connection portion of the lower block 300, which is the end of the 300.

In addition, the present invention is formed with a guide cover fixing groove 160 in the longitudinal direction on the upper surface of the upper block 100, the attention guide cover 400 is fixed to the guide cover fixing groove 160.

Fixing the notice guide cover 400 to the guide cover fixing groove 160 can be fixed with an adhesive, and also can be attached to the notice guide cover 400 when the upper block 100 is molded. .

As described above, in the present invention, the conduit such as underground transmission cable is maintained by the upper block, the intermediate block and the lower block in which the conduit coupling grooves are formed, so that the conduit is disposed in the ground, and the conduit is retained and fixed in the conduit grooves. The block, the intermediate block and the lower block unitary protective blocks can be fixed to each other by fastening means and maintained without flowing in the ground, and the inflow of the upper block, the intermediate block and the lower block can be discharged through the drainage channel and the drain hole. By preventing the inflow of inflow water into the conduit in the protection block, it is possible to prevent safety accidents such as short circuit of the conduit, and to attach a caution guide sign on the upper surface of the protection block of the upper block, the middle block and the lower block. Form guide guide fixing grooves to prevent damages caused by excavation and other construction work There.

Claims (4)

delete In the conduit such as underground transmission cable is held and fixed by the upper block, the middle block and the lower block formed with the conduit coupling grooves to be disposed in the ground, the fastening holes (both ends of the upper block 100 and the lower block 300) In the conduit protection block for conduit is formed fastening projections (130, 330) formed with 140, 340, the upper block 100, the lower blocks 300 and the bolt nuts (20, 30) adjacent to each other fixed, Drainage (150, 250, 350) is formed in the longitudinal direction of the upper block 100, the intermediate block 200 and the lower block 300 and the drainage path (150, 250, 350) is connected to the drain hole 260 through the buried conduit Protection block. delete  The method of claim 2, wherein the projecting projection projections 130 of the upper block and the lower block 300 is embedded in the underground manhole 10 and the hanger bolt 40, characterized in that the buried protective block for the conduit.

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