CN211428870U - High-strength flame-retardant cable trench keel - Google Patents

Abstract

The utility model discloses a high strength flame retardant cable trench keel, including the fossil fragments body, the middle part sandwich layer of fossil fragments body is the polyethylene layer, and the upper and lower surface of polyethylene layer all is equipped with fire-retardant layer, and polyethylene layer and fire-retardant layer coextrusion integrated into one piece, and the surface of fire-retardant layer all cladding has polyethylene wax, and symmetrical indent circular arc has all been seted up to the both sides of fossil fragments body, and trapezoidal groove has all been seted up to both sides around the fossil fragments body, has still seted up triangular groove in the trapezoidal groove; the utility model discloses use the polyethylene layer as the sandwich layer and be equipped with fire-retardant layer about it on two sides, when solving easily mildenes and rot, easily absorb water, play fire-retardant effect, have low molecular weight polyethylene to play the surface lubrication at the surface cladding of fossil fragments body at last and be convenient for install, and similar "worker" the fossil fragments of font have reduced the material, and the processing nature is good, can cut in a flexible way as required, trapezoidal groove and triangular groove can realize with the fixed of apron different modes.

Description

High-strength flame-retardant cable trench keel

Technical Field

The utility model relates to a building material field specifically is a fire-retardant cable pit fossil fragments of high strength.

Background

The cable trench is an auxiliary project of projects such as tunnels and protects normal operation of facilities such as electric power and communication. In a particular application it is desirable to support the cable gland plate with a keel. The existing keel is mainly made of wood and steel pipes, the wood keel is easy to absorb moisture, mildew and flame retardant, and the steel pipe keel is easy to rust in humid environments such as tunnels and the like and has poor field processability. Therefore, the environment-friendly, flame-retardant, high-strength and corrosion-resistant high-strength flame-retardant cable trench keel is designed.

SUMMERY OF THE UTILITY MODEL

For solving the problem that the background art exists, the utility model provides a high strength flame retardant cable trench fossil fragments utilizes recoverable polyethylene as the raw materials, and is with low costs, and the fire resistance is good, and intensity is high, does not milden and rot.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a fire-retardant cable pit fossil fragments of high strength, including the fossil fragments body, the middle part sandwich layer of fossil fragments body is the polyethylene layer, and the upper and lower surface on polyethylene layer all is equipped with fire-retardant layer, and polyethylene layer and fire-retardant layer are crowded integrated into one piece altogether, and the equal cladding of surface on fire-retardant layer has the polyethylene wax, and symmetrical indent circular arc has all been seted up to the both sides of fossil fragments body, and the dovetail groove has all been seted up on two sides around the fossil fragments body, and the triangular groove has still been seted up to the.

Further, the flame-retardant layer is formed by filling and extruding the flame retardant and the net film made of polyethylene into a whole.

Further, the flame retardant is aluminum hydroxide or magnesium hydroxide.

Further, the width of the keel body is 80mm, and the height of the keel body is 60 mm.

Furthermore, the edge of the concave arc is an arc chamfer with the radius of 3 mm.

Further, the radius of the concave arc is 20 mm.

Further, the widths of the upper bottom surface and the lower bottom surface of the trapezoid groove from outside to inside are respectively 12mm and 10 mm.

Further, the depth of the triangular groove is 1 mm.

Compared with the prior art, the utility model discloses following beneficial effect has: this kind of fire-retardant cable pit fossil fragments of high strength is equipped with fire-retardant layer through using the polyethylene layer as the sandwich layer and on its upper and lower two sides, when solving easily mildenes and rot, easily absorb water, plays fire-retardant effect, has polyethylene wax to play the surface lubrication at the surface cladding of fossil fragments body at last and is convenient for install, and the fossil fragments of similar "worker" font have reduced the material, and the processing nature is good, can cut in a flexible way as required, trapezoidal groove and triangular groove can realize with the fixed of apron different modes.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a high-strength flame-retardant cable trench keel of the utility model;

fig. 2 is a top view of the high-strength flame-retardant cable trench keel of the present invention;

figure 3 is the utility model relates to a cross-sectional view of fire-retardant cable pit fossil fragments of high strength.

In the figure: 1. a keel body; 101. polyethylene wax; 102. a flame retardant layer; 103. a polyethylene layer; 2. an inward concave arc; 3. a trapezoidal groove; 4. a triangular groove.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1 to 3, the high-strength flame-retardant cable trench keel comprises a keel body 1, wherein a middle core layer of the keel body 1 is a polyethylene layer 103, and flame-retardant layers 102 are arranged on the upper surface and the lower surface of the polyethylene layer 103 and are used for preventing fire and retarding flame and protecting the keel; the polyethylene layer 103 and the flame-retardant layer 102 are co-extruded and integrally formed, so that the possibility of cracking is reduced; the outer surface of the flame-retardant layer 102 is coated with polyethylene wax 101, so that internal and external lubrication is increased, and processing and construction are facilitated; symmetrical indent circular arc 2 has all been seted up to fossil fragments body 1's both sides, and trapezoidal groove 3 has all been seted up on fossil fragments body 1's front and back two sides, has still seted up triangular groove 4 in the trapezoidal groove 3, and the different apron of multiple groove in order to utilize the flexibility.

The flame-retardant layer 102 is formed by filling and extruding a flame retardant and a net film made of polyethylene into a whole, has a good flame-retardant effect and is not easy to crack.

Wherein, the flame retardant is aluminum hydroxide or magnesium hydroxide, and has good flame retardant effect.

The width of keel body 1 is 80mm, and the height is 60 mm.

Wherein, the edge of the concave arc 2 is an arc chamfer with the radius of 3 mm.

Wherein, the radius of the concave arc 2 is 20 mm.

Wherein, the widths of the upper bottom surface and the lower bottom surface of the trapezoidal groove 3 from outside to inside are respectively 12mm and 10 mm.

Wherein the depth of the triangular groove 4 is 1 mm.

It should be noted that the utility model relates to a fire-retardant cable pit fossil fragments of high strength, the reducible materials of its I-shaped structure, reduce cost. The keel has good machinability and can be flexibly cut according to requirements; the fixing mode of the cover plate is flexible, and the cover plate can be flexibly selected according to the actual field.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a fire-retardant cable pit fossil fragments of high strength, includes fossil fragments body (1), a serial communication port, the middle part sandwich layer of fossil fragments body (1) is polyethylene layer (103), the upper and lower surface of polyethylene layer (103) all is equipped with fire-retardant layer (102), polyethylene layer (103) and fire-retardant layer (102) are crowded integrated into one piece altogether, the equal cladding of surface on fire-retardant layer (102) has polyethylene wax (101), symmetrical indent circular arc (2) have all been seted up to the both sides of fossil fragments body (1), dovetail groove (3) have all been seted up on both sides around fossil fragments body (1), triangular groove (4) have still been seted up in dovetail groove (3).

2. The high-strength flame-retardant cable trench runner according to claim 1, wherein the flame-retardant layer (102) is formed by extruding a flame retardant and a mesh film filler made of polyethylene as one body.

3. The high-strength flame-retardant cable trench keel according to claim 2, wherein the flame retardant is aluminum hydroxide or magnesium hydroxide.

4. The high-strength flame-retardant cable trench keel according to claim 1, wherein the keel body (1) is 80mm wide and 60mm high.

5. The high-strength flame-retardant cable trench keel according to claim 1, wherein the corner of the concave arc (2) is an arc chamfer with a radius of 3 mm.

6. The high-strength flame-retardant cable trench keel according to claim 1, wherein the radius of the concave arc (2) is 20 mm.

7. The high-strength flame-retardant cable trench keel according to claim 1, wherein the widths of the upper bottom surface and the lower bottom surface of the trapezoidal groove from outside to inside are 12mm and 10mm respectively.

8. The high-strength flame-retardant cable trench runner according to claim 1, wherein the depth of the triangular groove (4) is 1 mm.

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