CN207603166U - A kind of circular cross-section assembly concrete cable duct - Google Patents

Abstract

The utility model relates to an assembled concrete cable trench with a circular cross section, which comprises a cable trench main body and a cable trench cover plate. The cable trench main body is a horizontal cylindrical structure, and an opening is opened on the side of the cylinder of the cable trench main body. The cable trench cover plate is closed on the opening, and a cable support is arranged in the main body of the cable trench, and the cable support is suspended in the air. Compared with the prior art, this utility model is a circular section assembled concrete cable trench. The main section of the cable trench adopts a circular section to form a circular force. It is mainly designed for use in severe cold regions. Through the cable trench The groove in the lower part of the main body can drain water.

Description

A circular section assembled concrete cable trench

technical field

The utility model relates to a cable trench, in particular to an assembled concrete cable trench with a circular section, which belongs to the technical field of municipal power grid construction.

Background technique

The main cable trenches of current industrial and mining enterprises are generally designed as fully enclosed "mouth" shaped cable trenches, and then the cables are installed in the fully enclosed "mouth" shaped cable trenches. When equipment is transformed, such as power system denitration transformation, etc., the cable trench must be moved. When the fully enclosed "口" shaped cable trench is displaced, a new fully enclosed "口" shaped cable trench needs to be built at the preset position. Stop the unit, stop the equipment, cut off the power supply of all cables, and pull the cables out of the original cable trench. At the same time, it is necessary to untangle and remove all the cables at the equipment end. Then, after the cables are passed into the new cable trench, a series of work such as equipment disconnection, calibration, debugging and trial operation are carried out. This mode of operation not only needs to shut down all equipment, causing economic losses, but also has a long construction period, many procedures, and high labor costs.

In the prior art, the construction of cable trenches and cable supports is relatively complicated, heavy in weight, inconvenient for transportation, unable to be reused, relatively poor in corrosion resistance, and not environmentally friendly.

For example, a kind of cable trench whose application number is 201510189227.X includes a wire tube and a cable bracket, the cable bracket is installed in the wire tube, and the cable bracket is used to support and fix the cable. The cable holder includes a left half cable holder and a right half cable holder, the left half cable holder includes a left semi-arc main body and a left cable support arm, the right half cable holder includes a right semi-arc main body and a right cable support arm. The cable support provided by the invention has the advantages of light weight, convenient transportation, simple construction, anti-corrosion, no rust, long service life and flame retardancy.

Utility model content

The technical problem to be solved by the utility model is to provide an assembled concrete cable trench with a circular section in view of the above-mentioned deficiencies in the prior art.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

An assembled concrete cable trench with a circular cross-section, including a cable trench main body and a cable trench cover plate, the cable trench main body is a horizontal cylindrical structure, an opening is opened on the side of the cylinder of the cable trench main body, and the cable trench The cover plate is closed on the opening, and a cable bracket is arranged in the main body of the cable trench, and the cable bracket is suspended in the air.

As a further preferred solution, the cable trench cover plate is located at the highest point of the cylinder side of the main body of the cable trench.

As a further preferred solution, the bottom of the cylindrical side of the main body of the cable trench is provided with grooves along the length direction, and the part of the bottom of the cylindrical side of the main body of the cable trench covered by the grooves is provided with through holes.

As a further preferred solution, the through holes at the bottom of the cylinder side of the cable trench main body are equidistantly distributed along the length direction of the cable trench main body.

As a further preferred solution, the cross-section of the cable trench cover is arc-shaped, forming a complete circle with the cross-section of the cable trench main body; the edge connecting the cable trench main body and the cable trench cover has a convex An edge and a concave edge, the edge of the connection between the cable trench cover plate and the cable trench main body also has a convex edge and a concave edge, the convex edge of the cable trench main body is complementary to the concave edge of the cable trench cover plate, and the cable trench main body The concave edge of the cable groove cover complementarily engages with the convex edge of the cable trench cover.

Compared with the prior art, a circular section assembled concrete cable trench of the present utility model mainly has the following advantages:

1. The main section of the cable trench adopts a circular section to form a circular force, which is mainly designed for use in severe cold areas. Because the soil in severe cold regions has the disadvantage of frost heaving, it will generate frost heaving force on the ditch body, causing the side wall of the ditch body to be damaged to varying degrees. No matter the U-shaped cable trench or the rectangular cable trench that is widely used at present, this problem cannot be well solved. When the circular cable trench is used, the force is more reasonable, and the force characteristics of the ring can effectively resist the frost heaving force of the soil, which is suitable for the use of substations in severe cold areas.

2. There is a groove in the lower part of the main body of the cable trench. The water in the main body of the cable trench flows into the trench through the through hole, and then is drained through the drain pipe, so that the main body of the cable trench will not retain water and ensure that the cable will not be corroded. On the other hand, the main body of the cable trench is easy to fix during installation, which is convenient for construction.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a sectional view of the utility model;

Among them, 1-cable trench main body, 2-cable trench cover plate, 3-cable support, 4-groove, 5-through hole.

Detailed ways

The preferred technical solutions of the utility model will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, a circular cross-section assembled concrete cable trench of the present utility model is suitable for circular assembled concrete cable trenches in severe cold regions, including a cable trench main body 1 and a cable trench cover plate 2, and a cable trench main body 1 and the cable trench cover plate 2 are all prefabricated in the factory as a whole. The cable trench main body 1 is a horizontal cylindrical structure. There is an opening on the side of the cylinder of the cable trench main body 1, and the cable trench cover plate 2 is closed on the opening. Above, iron rings are pre-embedded at certain intervals on the cable trench cover plate 2, which is convenient for on-site hoisting and future inspection and maintenance. The connectors are pre-embedded in the cable trench main body 1, and the cable bracket 3 and the embedded parts are connected by bolts, and then For cable laying, the cable support 3 is set in the air; the main body 1 of the cable trench and the cover plate 2 of the cable trench are sketched on site with waterproof mortar, which simplifies the construction.

The cable trench cover plate 2 is located at the highest point of the cylinder side of the cable trench main body 1 .

The bottom of the cylindrical side of the cable trench main body 1 is provided with a groove 4 along the length direction, and the part of the cylindrical side bottom of the cable trench main body 1 that is covered by the groove 4 is provided with a through hole 5, which enters the cable trench main body 1. Water can enter the groove 4 through the through hole 5 to discharge, and the groove 4 is provided with a drainage pipe to solve the drainage problem

Since the drainage problem is solved, when the cable trench main body 1 is assembled and installed, a 5-6cm gap can be reserved between the assembly blocks of the cable trench main body 1, and then directly filled with waterproof mortar on-site. The construction is convenient and simple, especially for T-shaped, The construction at the L-shaped corner provides convenience and saves cost.

The through holes 5 at the bottom of the cylinder side of the cable trench main body 1 are equidistantly distributed along the length direction of the cable trench main body 1 .

The cross-section of the cable trench cover 2 is arc-shaped, forming a complete circle with the cross-section of the cable trench main body 1; the edge connecting the cable trench main body 1 and the cable trench cover 2 has a convex edge and A concave edge, the edge of the connection between the cable trench cover plate 2 and the cable trench main body 1 also has a convex edge and a concave edge, the convex edge of the cable trench main body 1 is complementary to the concave edge of the cable trench cover plate 2, and the cable The concave edge of the trench body 1 is complementary to the convex edge of the cable trench cover plate 2 .

The specific implementation of the utility model has been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned embodiments. Various changes are made.

Claims (5)

1. A circular cross-section assembled concrete cable trench, characterized in that: it includes a cable trench main body (1) and a cable trench cover plate (2), the cable trench main body (1) is a horizontal cylindrical structure, and the cable There is an opening on the side of the cylinder of the ditch main body (1), and the cable ditch cover plate (2) covers the opening, and a cable bracket (3) is arranged inside the cable ditch main body (1), and the cable bracket (3) Suspension setting. 2. A circular cross-section assembled concrete cable trench according to claim 1, characterized in that: the cable trench cover plate (2) is located at the highest point of the cylinder side of the cable trench main body (1). 3. A circular cross-section assembled concrete cable trench according to claim 2, characterized in that: the bottom of the cylindrical side of the cable trench body (1) is provided with a groove (4) along the length direction, and the cable trench A through hole (5) is opened on the part of the cylinder side bottom of the main body (1) covered by the groove (4). 4. A circular section assembled concrete cable trench according to claim 3, characterized in that: the through hole (5) at the bottom of the cylinder side of the cable trench main body (1) is along the cable trench main body (1) distributed equally along the length direction. 5. A circular cross-section assembled concrete cable trench according to claim 1, characterized in that: the cross section of the cable trench cover plate (2) is arc-shaped, and the cross section of the cable trench main body (1) is The section forms a complete circle; the edge connecting the cable trench body (1) and the cable trench cover (2) has a convex edge and a concave edge, and the cable trench cover (2) and the cable trench main body ( 1) The connecting edge also has a convex edge and a concave edge. The convex edge of the cable trench body (1) is complementary to the concave edge of the cable trench cover (2), and the concave edge of the cable trench body (1) is in contact with the cable The convex edges of the ditch cover plate (2) are complementary engaged.