Cable conduit with flame-retardant structure

Abstract

The utility model relates to the field of cable conduits, in particular to a cable conduit with a flame-retardant structure, which comprises a cable conduit main body. And the protection layer wraps the cable conduit main body and is used for protecting the cable conduit main body, and the protection layer comprises a heat-resistant layer. According to the cable conduit with the flame-retardant structure, through the arrangement of the cable conduit main body, the protection layer and the high-temperature-resistant layer, the flame retardance of the whole cable conduit is enhanced, the change of the outer side of a cable in a high-temperature environment is avoided, the heat-resistant layer on the outer layer of the cable conduit main body is glass fiber cloth, and glass fibers are used as raw materials, so that the cable conduit is environment-friendly. The cloth-shaped material manufactured through the textile technology has excellent mechanical property, heat resistance, corrosion resistance, insulativity and flame retardance, the outer flame-retardant layer of the heat-resistant layer is made of polyvinyl chloride and has a good flame-retardant effect, and the high-temperature-resistant layer in the inner pipe is matched with a polymer added with a flame retardant, so that the fireproof performance of the cable conduit is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable conduit field, concretely relates to a cable conduit with flame -retardant structure. BACKGROUND

[0002] Cable protection pipe refers to the metal protection pipe with certain mechanical strength laid in the outer layer of cable for preventing the cable from being damaged.

[0003] The existing cable conduit, as the key protection component of power, communication and other infrastructures, its flame-retardant performance directly affects the system safety, and the traditional cable conduit has poor flame-retardant effect, thereby causing a series of serious problems, intensifying the fire risk, and high temperature can cause the cable outer skin to melt, the internal conductor to short circuit, and power failure or equipment damage.

[0004] Therefore, it is necessary to invent a cable conduit with flame-retardant structure to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model discloses a cable conduit with flame-retardant structure, the heat -resistant layer of cable conduit main part outer layer is glass fiber cloth, and it is the cloth material made by glass fiber as raw material through weaving technology, which has excellent mechanical properties, heat resistance, corrosion resistance, insulation and flame retardancy, and the outer flame-retardant layer material of heat -resistant layer is polyvinyl chloride, which has good flame-retardant effect, and the high -temperature layer inside the inner tube is a polymer added with flame retardant, thereby improving the fireproof performance of cable conduit, to solve the problems in the above background technology that the existing cable conduit, as the key protection component of power, communication and other infrastructures, its flame-retardant performance directly affects the system safety, and the traditional cable conduit has poor flame-retardant effect, thereby causing a series of serious problems, intensifying the fire risk, and high temperature can cause the cable outer skin to melt, the internal conductor to short circuit, and power failure or equipment damage.

[0006] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a cable conduit with flame-retardant structure, comprising cable conduit main part;

[0007] The protective layer is wrapped outside the cable conduit main part and is used for protecting the cable conduit main part, the protective layer comprises a heat -resistant layer, the heat -resistant layer is wrapped outside the cable conduit main part, the outside of the heat -resistant layer is coated with a flame -retardant layer, and the outside of the flame -retardant layer is covered with an outermost layer;

[0008] The buffering plastic plate is fixedly installed on the inner wall of the cable conduit main body and is used for impact resistance, an intermediate pipe is fixedly connected to the inside of the buffering plastic plate, a metal net is fixedly installed in the inside of the intermediate pipe, an inner pipe is fixedly connected to the inside of the metal net, a moisture corrosion resistant layer is applied to the inside of the inner pipe, and a high temperature resistant layer is covered on the moisture corrosion resistant layer.

[0009] Preferably, the material of the heat resistant layer is glass fiber cloth, the material of the fire resistant layer is polyvinyl chloride, and the material of the outermost layer is polyethylene.

[0010] Preferably, the buffering plastic plate is located between the cable conduit main body and the intermediate pipe, and the buffering plastic plate is wave-shaped.

[0011] Preferably, the material of the moisture corrosion resistant layer is polyethylene, and the material of the high temperature resistant layer is a polymer added with a flame retardant.

[0012] Preferably, one end of the cable conduit main body is fixedly connected with a first connecting piece, and the other end of the cable conduit main body is fixedly connected with a second connecting piece, and a sealing ring is inlaid in the inside of the first connecting piece.

[0013] Preferably, the inside of the first connecting piece is fixedly connected with an insertion block, and the inner side surface of the second connecting piece is provided with an insertion slot, and the first connecting piece and the second connecting piece are movably connected.

[0014] In the above technical solution, the technical effects and advantages of the utility model are as follows:

[0015] 1. The setting of the cable conduit main body, the protective layer and the high temperature resistant layer strengthens the flame retardance of the overall cable conduit, avoids the change of the outer edge of the cable under high temperature environment, the heat resistant layer of the outer layer of the cable conduit main body is glass fiber cloth which is a cloth-like material made of glass fiber through a textile process and has excellent mechanical properties, heat resistance, corrosion resistance, insulation and flame retardance, the outer fire resistant layer of the heat resistant layer is polyvinyl chloride which has good flame retardant effect, and the high temperature resistant layer in the inner pipe is a polymer added with a flame retardant, thereby improving the fireproof performance of the cable conduit.

[0016] 2. The setting of the cable conduit main body, the protective layer, the buffering plastic plate, the intermediate pipe, the metal net and the inner pipe strengthens the strength of the overall cable conduit, the material of the outermost layer of the protective layer is polyethylene which has corrosion resistance, wear resistance and aging resistance and is suitable for buried or outdoor environment, the buffering plastic plate is arranged between the cable conduit main body and the intermediate pipe to strengthen the buffering strength, and the metal net is arranged between the intermediate pipe and the inner pipe to strengthen the overall strength. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the technical scheme of the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments will be briefly introduced as follows. Obviously, the accompanying drawings in the following description only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 It is an overall structure schematic view of the utility model;

[0019] Figure 2 It is a protective layer structure schematic view of the utility model;

[0020] Figure 3 It is an intermediate pipe structure schematic view of the utility model;

[0021] Figure 4 It is an inner pipe structure schematic view of the utility model;

[0022] Figure 5 It is a first connecting piece and second connecting piece structure schematic view of the utility model.

[0023] Mark explanation:

[0024] 1, cable conduit main body;2, protective layer;201, heat-resistant layer;202, flame-retardant layer;203, outermost layer;3, buffer plastic plate;4, intermediate pipe;5, metal mesh;6, inner pipe;7, damp corrosion prevention layer;8, high-temperature resistant layer;9, first connecting piece;10, second connecting piece;11, sealing ring;12, plug-in block. Specific implementation

[0025] In order to make those skilled in the art better understand the technical scheme of the utility model, the utility model will be further introduced in detail in conjunction with the drawings.

[0026] The utility model provides a kind of cable conduit with flame-retardant structure as shown in Figures 1-5 It includes cable conduit main body 1;

[0027] Protective layer 2 is wrapped in the outside of cable conduit main body 1, for protecting cable conduit main body 1, and protective layer 2 includes heat-resistant layer 201, and heat-resistant layer 201 is wrapped in the outside of cable conduit main body 1, and heat-resistant layer 201 is coated with flame-retardant layer 202 outside, and flame-retardant layer 202 is covered with outermost layer 203 outside;

[0028] Buffering plastic plate 3, fixedly installed in the inner wall of cable conduit body 1, used for impact resistance, buffering plastic plate 3 is fixedly connected with intermediate pipe 4 inside, intermediate pipe 4 is fixedly installed with metal mesh 5 inside, metal mesh 5 is fixedly connected with inner tube 6, inner tube 6 is coated with moisture corrosion resistant layer 7, moisture corrosion resistant layer 7 is covered with high temperature resistant layer 8, the outer layer of cable conduit body 1 is heat resistant layer 201 made of glass fiber cloth, which is a cloth-like material made of glass fiber as raw material through textile process, with excellent mechanical properties, heat resistance, corrosion resistance, insulation and flame retardance, and the outer layer of heat resistant layer 201 is flame retardant layer 202 made of polyvinyl chloride, with good flame retardant effect, and the inner tube 6 is coated with high temperature resistant layer 8, which is a polymer added with flame retardant, thereby improving the fireproof performance of the cable conduit.

[0029] As shown in Figure 1 and Figure 2 , the material of heat resistant layer 201 is glass fiber cloth, the material of flame retardant layer 202 is polyvinyl chloride, and the material of outermost layer 203 is polyethylene, the outer layer of cable conduit body 1 is heat resistant layer 201 made of glass fiber cloth, which is a cloth-like material made of glass fiber as raw material through textile process, with excellent mechanical properties, heat resistance, corrosion resistance, insulation and flame retardance, the outer layer of heat resistant layer 201 is flame retardant layer 202 made of polyvinyl chloride, with good flame retardant effect, and the outermost layer 203 is made of polyethylene, with corrosion resistance, wear resistance and aging resistance, suitable for buried or outdoor environment.

[0030] As shown in Figure 2 and Figure 3 , buffering plastic plate 3 is located between cable conduit body 1 and intermediate pipe 4, buffering plastic plate 3 is wave-shaped, buffering plastic plate 3 is arranged between cable conduit body 1 and intermediate pipe 4 to enhance the buffering and impact resistance.

[0031] As shown in Figure 2 and Figure 4 , the material of moisture corrosion resistant layer 7 is polyethylene, the material of high temperature resistant layer 8 is a polymer added with flame retardant, moisture corrosion resistant layer 7 has excellent insulation performance to prevent the cable from being damp or corroded, and the inner tube 6 is coated with high temperature resistant layer 8, which is a polymer added with flame retardant, thereby improving the fireproof performance of the cable conduit.

[0032] As shown in Figure 1 and Figure 5 , one end of cable conduit body 1 is fixedly connected with first connecting piece 9 and second connecting piece 10 respectively, first connecting piece 9 is inlaid with sealing ring 11 inside, first connecting piece 9 and second connecting piece 10 are convenient for connecting cable conduit body 1, and sealing ring 11 is arranged inside to improve the sealing performance of the connection.

[0033] As shown in Figure 1 and Figure 5As shown, the inner side of the first connecting piece 9 is fixedly connected with an insertion block 12, and the inner side surface of the second connecting piece 10 is provided with an insertion slot, the first connecting piece 9 is movably connected with the second connecting piece 10, and the insertion block 12 in the first connecting piece 9 is inserted into the insertion slot in the second connecting piece 10, thereby facilitating the butt joint installation.

[0034] The utility model discloses a cable conduit, which comprises a cable conduit body 1, a first connecting piece 9 and a second connecting piece 10.

[0035] The utility model discloses a cable conduit, which comprises a cable conduit body 1, a first connecting piece 9 and a second connecting piece 10. The utility model discloses a cable conduit, which comprises a cable conduit body 1, a first connecting piece 9 and a second connecting piece 10. The utility model discloses a cable conduit, which comprises a cable conduit body 1, a first connecting piece 9 and a second connecting piece 10.

Claims

1. A cable conduit having a fire barrier construction, characterized by: Cable conduit body (1) is provided with; The protective layer (2) is wrapped outside the cable conduit body (1), which is used for protecting the cable conduit body (1), the protective layer (2) comprises a heat-resistant layer (201), the heat-resistant layer (201) is wrapped outside the cable conduit body (1), the outer surface of the heat-resistant layer (201) is coated with a fire-retardant layer (202), and the outer surface of the fire-retardant layer (202) is covered with an outermost layer (203); The buffer plastic plate (3) is fixedly installed on the inner wall of the cable conduit body (1) and is used for impact resistance, the inner surface of the buffer plastic plate (3) is fixedly connected with the intermediate pipe (4), the inner surface of the intermediate pipe (4) is fixedly installed with the metal mesh (5), the inner surface of the metal mesh (5) is fixedly connected with the inner pipe (6), the inner surface of the inner pipe (6) is coated with the moisture corrosion-resistant layer (7), and the moisture corrosion-resistant layer (7) is covered with the high-temperature-resistant layer (8).

2. A cable conduit with a fire barrier according to claim 1, characterized in that: The material of the heat-resistant layer (201) is glass fiber cloth, the material of the fire-retardant layer (202) is polyvinyl chloride, and the material of the outermost layer (203) is polyethylene.

3. A cable conduit with a fire barrier according to claim 1, characterized in that: The buffer plastic plate (3) is located between the cable conduit body (1) and the intermediate pipe (4), and the buffer plastic plate (3) is wave-shaped.

4. The cable conduit with a fire-retardant structure according to claim 1, characterized in that: The material of the moisture corrosion-resistant layer (7) is polyethylene, and the material of the high-temperature-resistant layer (8) is a polymer added with a flame retardant.

5. The cable conduit with a fire-retardant structure according to claim 1, characterized in that: One end of the cable conduit body (1) is fixedly connected with the first connecting piece (9) and the second connecting piece (10), respectively, and the inner surface of the first connecting piece (9) is inlaid with the sealing ring (11).

6. A cable conduit with a fire barrier according to claim 5, characterized in that: The inner surface of the first connecting piece (9) is fixedly connected with the plug (12), the inner surface of the second connecting piece (10) is provided with the insertion slot, and the first connecting piece (9) and the second connecting piece (10) are movably connected.

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