CN107482564A - An assembled cable trench - Google Patents

Abstract

The present invention relates to a kind of assembly type cable slot, including multiple cable duct monomers and trench cover, the cable duct monomer is the concave integral structure of section, and the rhone of arc is provided among the bottom surface in the cable duct monomer；The bottom surface of the rhone both sides is oblique with the angle set to rhone respectively.Compared with prior art, present invention employs the inorganic composite materials trench cover with water-proof function, there is construction is simple, easily enlarging, the advantage such as overhaul of the equipments is convenient, place perception is good, cost is low.

Description

An assembled cable trench

technical field

The invention relates to the field of construction engineering, in particular to an assembled cable trench.

Background technique

The cable trench refers to the underground trench that is excavated and built according to the design requirements, the side wall of the trench is welded with a load-bearing angle steel frame and grounded as required, and the top is covered with a cover plate. Its purpose is to lay special underground passages for cables, and it is widely used in buildings, power substations, power plants, and municipal construction.

As the State Grid advocates the construction of prefabricated substations, prefabricated buildings and structures are applied to realize "standardized design, factory processing, and modular construction", reduce on-site "wet work", increase the application range of mechanized construction, reduce on-site labor input, and shorten The construction cycle is shortened, the safety risk of on-site construction is reduced, and the quality and technological level of the project construction are improved. More and more substations are beginning to use prefabricated cable trenches, because prefabricated cable trenches can effectively reduce the wet work on the construction site, and can also speed up the construction speed and reduce the construction period.

For a long time, the material of the cable trench cover has been made of cast iron and cement, which affects the safety of use and has a short service life. At present, most cable trench covers on the market do not have waterproof and anti-theft functions, and the cable protection measures are relatively poor. Water in the cable trench will cause accidents, making the service life of the cables short and not conducive to safety protection.

Contents of the invention

The object of the present invention is to provide a prefabricated cable trench in order to overcome the above-mentioned defects in the prior art.

The purpose of the present invention can be achieved through the following technical solutions:

An assembled cable trench, comprising a plurality of cable trench monomers and trench cover plates, the cable trench monomer is an integrated structure with a concave cross section, and an arc-shaped row is arranged in the middle of the bottom surface of the cable trench monomer sink.

The bottom surfaces on both sides of the drainage groove slope downward at a set angle to the drainage groove respectively.

The ditch cover includes a rectangular cover body and upper and lower ribs respectively arranged on two opposite end surfaces of the cover body; the upper surface of the rectangular cover body is upwardly convex along the length direction of the ribs. Arched; the upper rib and the lower rib include an upper surface, a vertical surface and a lower surface respectively; the upper surface of the upper rib is coplanar with the upper surface of the cover body, and the lower surface of the upper rib The upper surfaces of the upper rib and the lower rib are arcuate or folded surfaces protruding upward along the arched top surface of the ditch cover plate, and the thickness of the outer edge of the upper rib and the lower rib is greater than the thickness of the inner edge.

The cable trench unit is provided with a protrusion higher than the ground on the top of the side wall, and the trench cover plate covers the protrusion.

The length of the single cable trench is 2-3m.

The thickness of the side wall and bottom plate of the single cable trench is 100-150mm.

The material of the trench cover plate is an inorganic composite material.

There are 4-7mm gaps between the individual cable trenches, and waterproof mortar is used for pointing.

Compared with the prior art, the present invention has the following advantages:

1. The combination of prefabricated cable trenches meets the requirements of standardized design, factory processing, and modular construction. It has the advantages of simple construction, easy expansion, convenient equipment maintenance, good site perception, and low cost.

2. The waterproof effect is good. The design of the trench cover makes the water flow to both sides of the cable trench width, so that the water will not accumulate on the trench cover, which prevents the expansion and damage of the cover when the water freezes in cold weather, and prolongs the life of the cover.

3. The cable trench cover plate is made of inorganic composite material, which is formed in a mold at one time. It has the advantages of neatness, beauty, light weight, large bearing capacity, corrosion resistance, and waterproof.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the top view of the middle ditch cover plate of the present invention;

Fig. 3 is a sectional view along A-A of Fig. 2 .

Markings in the figure: 1. cable trench unit, 2. trench cover plate, 3. drainage groove, 4. upper convex rib, 5. lower convex rib, 6. cover plate body.

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

As shown in Figure 1, an assembled cable trench includes a plurality of cable trench monomers 1 and trench cover plates 2. The cable trench monomer 1 is an integrated structure with a concave cross-section. The left and right trench walls are symmetrical. An arc-shaped drainage groove 3 is arranged in the middle of the bottom surface in the body 1 .

The bottom surfaces on both sides of the drainage groove 3 slope downward at a set angle to the drainage groove 3 respectively, generally the inclination angle is 10-30 degrees, so that the water in the cable trench can be quickly collected into the drainage groove 3 and discharged in time.

As shown in Fig. 2 and Fig. 3, the ditch cover plate 2 includes a rectangular cover plate body 6 and upper ribs 4 and lower ribs 5 respectively arranged on two opposite end faces of the cover plate body 6; The surface is upwardly convex along the length direction of the rib; the upper rib 4 and the lower rib 5 comprise an upper surface, a vertical surface and a lower surface respectively; the upper surface of the upper rib 4 and the upper surface of the cover body 6 Coplanar, the lower surface of the upper rib 4 and the upper surface of the lower rib 5 are arcuate or folded surfaces that protrude upward along the arched direction of the upper surface of the ditch cover plate 2, and the upper rib 4 and the lower rib The outer edge thickness of the rib 5 is greater than the inner edge thickness. When in use, the upper convex ribs 4 and the lower convex ribs 5 of multiple trench cover plates 2 are snapped together, and the arched ends of the trench cover plates 2 are placed on both sides of the cable trench width. When rain or snow falls on the trench cover plate 2 On the upper surface, it flows along the arch to the wide sides of the cable trench, and part of the water flow penetrates into the upper rib 4 and the lower rib 5 through the splicing gap between the trench cover plates 2, and then flows along the upper surface of the lower rib 5 to the The inner edge flows along the arched arc surface or folded surface of the inner edge of the lower convex rib 5 to both sides of the cable trench width, so that water cannot accumulate on the surface of the trench cover plate 2 and in the trench, thereby waterproofing the lines in the cable trench Protective effect, and prolong the service life of ditch cover plate 2.

The cable trench monomer 1 is provided with a protrusion higher than the ground on the top of the side wall, and the trench cover plate 2 covers the protrusion.

The length of the cable trench unit 1 is 2-3 m, preferably, the length is 1.5 m. The thickness of the side wall and bottom plate of the cable trench monomer 1 is 100-150mm.

The material of the ditch cover plate 2 is an inorganic composite material, which is formed in a mold at one time. Ditch cover plate 2 has various colors and anti-slip pattern design on the surface, which has the advantages of neatness, beauty, light weight, large bearing capacity, corrosion resistance, and waterproof.

The construction method of the cable trench is as follows: the cable trench unit 1 is installed on the 80-120mm thick plain concrete cushion, and 30-50mm dry hard cement is laid on the concrete cushion during installation for leveling. Leave a gap of 4-7mm, preferably, reserve a gap of 5mm, and use waterproof mortar for pointing; the cable trench monomer 1 at the corner of the cable trench and the T-shaped joint adopts brick plastering trench body; Set up a drainpipe at the lowest point, and connect the drainpipe to the underground drainage pipe network for drainage in the ditch.

Claims (8)

1. An assembled cable trench, comprising a plurality of cable trench monomers and trench cover plates, characterized in that, the cable trench monomer is an integrated structure with a concave cross section, and the bottom surface in the cable trench monomer is in the middle With curved drainage groove. 2 . The prefabricated cable trench according to claim 1 , wherein the bottom surfaces on both sides of the drainage groove slope downward at a set angle toward the drainage groove respectively. 3 . 3. A prefabricated cable trench according to claim 1, wherein the trench cover comprises a rectangular cover body and upper and lower ribs respectively provided on two opposite end surfaces of the cover body The upper surface of the rectangular cover body is an upwardly convex arch along the length direction of the rib; the upper rib and the lower rib include an upper surface, a vertical surface and a lower surface respectively; The upper surface is coplanar with the upper surface of the cover body, and the lower surface of the upper rib and the upper surface of the lower rib are arcuate or folded surfaces that protrude upward along the arched direction of the upper surface of the ditch cover plate, And the thickness of the outer edge of the upper rib and the lower rib is greater than the thickness of the inner edge. 4. A prefabricated cable trench according to claim 1, characterized in that, the single cable trench is provided with a protrusion above the ground on the top of the side wall, and the trench cover plate covers the protrusion superior. 5 . The assembled cable trench according to claim 1 , wherein the length of the single cable trench is 2-3 m. 5 . 6 . The prefabricated cable trench according to claim 1 , wherein the thickness of the side wall and bottom plate of the single cable trench is 100-150 mm. 7. The assembled cable trench according to claim 1, characterized in that, the material of the trench cover plate is an inorganic composite material. 8. A prefabricated cable trench according to claim 1, characterized in that there are gaps of 4-7 mm between the individual elements of the cable trench and are jointed with waterproof mortar.