Flame-retardant cpvc electric power tube

Abstract

The utility model discloses a flame-retardant cpvc electric power pipe, which relates to the technical field of electric power pipes and comprises a main pipe, two pairs of flange plates are mounted on the main pipe, one side of the main pipe is fixedly connected with a movable pipe through a pair of flange plates, the other side of the main pipe is fixedly connected with a connecting pipe through a pair of flange plates, and the two pairs of flange plates are in threaded connection with four bolts. A pipe pillow is installed on the outer wall of the middle of the main pipe, and a flame-retardant film is tightly attached to the inner wall of the main pipe. Through the arrangement of the movable pipe, it is conveniently guaranteed that an electric power pipe system can adapt to different laying layouts and connection requirements; through the arrangement of the flange plate, high strength and high sealing performance of pipeline connection can be ensured, and meanwhile, the stability of the internal pressure of the pipeline is also maintained; through the arrangement of the pipe pillow, the main pipe can be prevented from excessively shifting due to external force, through the arrangement of the flame-retardant film, the flame-retardant performance of the main pipe can be remarkably enhanced, and a certain protection time is provided for the power cable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric power pipe, especially to a flame -retardant cpvc electric power pipe. BACKGROUND

[0002] With the continuous development of electric power industry and the acceleration of urbanization process, as the important protection facilities of electric power transmission line, the application scope of electric power pipe is increasingly wide, since electric power pipe is usually laid in the underground, the interior of building or other complex environment, faces many potential risks, wherein the fire risk is particularly prominent, once the fire occurs, electric power pipe not only has to bear the direct invasion of flame, but also has to prevent the flame from spreading to other areas, causes the serious damage to the whole electric power system and surrounding environment, the existing electric power pipe is poor in the performance of support and positioning stability, does not have the special fixing measure to limit its displacement, and simultaneously does not fully consider the flame -retardant factor on material selection and structure design, leads to the poor flame -retardant performance even does not have, therefore, the application designs a kind of flame -retardant cpvc electric power pipe to solve the above problems. SUMMARY

[0003] The utility model aims at solving the shortcomings in the prior art, and provides a flame -retardant cpvc electric power pipe.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme: a kind of flame -retardant cpvc electric power pipe, including main pipe, two pairs of flange plate are installed on the main pipe, one side of the main pipe is fixedly connected with movable pipe by a pair of flange plate, the other side of the main pipe is fixedly connected with connecting pipe by a pair of flange plate, four bolts are threadedly connected on the two pairs of flange plate, pipe pillow is installed on the outer wall of the main pipe middle part, and flame -retardant film is tightly attached to the inner wall of the main pipe.

[0005] Preferably, the pipe pillow is composed of a plurality of pillow blocks sleeved on the main pipe, an arc-shaped notch for abutting the outer surface of the main pipe is formed on one side of the pillow block, and a friction block for limiting the lateral deviation of the main pipe is arranged on the surface of the arc-shaped notch of the pillow block.

[0006] Preferably, a plurality of sockets are distributed on the pillow block, and a plurality of limiting pins are inserted into the sockets.

[0007] Preferably, the pipe wall of the main pipe adopts a multi-layer structure design, and the pipe wall comprises an antistatic layer, an enhancement layer and a weather-resistant layer.

[0008] Preferably, an entrance is formed in the movable pipe, and an exit is formed in the connecting pipe.

[0009] Preferably, a sealing rubber ring for sealing treatment is arranged between a pair of flange plates.

[0010] Compared with the prior art, the utility model discloses the beneficial effect is: in the utility model, through the cooperation of main pipe, connecting pipe and movable pipe, can provide stable laying channel for cable, make electric power pipe system can adapt to different laying layout and connection demand, through the cooperation of flange and bolt, can ensure that the high strength and high sealing property of pipe connection, also maintain the stability of pipe internal pressure simultaneously, through the cooperation of pillow block and limiting peg, can make a plurality of pillow block assemble into pipe pillow, prevent main pipe and occur excessive deviation because of external force, through the setting of flame -retardant membrane, can significantly enhance the flame -retardant property of main pipe, provide certain protection time for electric power cable. BRIEF DESCRIPTION OF DRAWINGS

[0011] The drawings described herein are used to provide further understanding of the utility model, and constitute a part of the application, the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute improper limitation to the utility model.

[0012] Figure 1 The structure schematic drawing for the utility model is provided;

[0013] Figure 2 The pipe pillow schematic drawing for the utility model is provided;

[0014] Figure 3 The whole half -cut schematic drawing for the utility model is provided;

[0015] Figure 4 The whole structure schematic drawing for the utility model is provided.

[0016] The figure serial number: 1, connecting pipe;2, main pipe;3, movable pipe;4, flange;5, pipe pillow;6, pillow block;7, limiting peg;8, friction block;9, bolt;10, flame -retardant membrane;11, inlet;12, outlet. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment.

[0018] Embodiment: see Figures 1-4The utility model discloses a kind of flame-retardant cpvc electric power pipes, including main pipe 2, two pairs of flange plate 4 are installed on main pipe 2, reliable connection and sealing between pipe fittings are facilitated by flange plate 4, effectively avoid the leakage and loosening problem of connecting place;One side of main pipe 2 is fixedly connected with movable pipe 3 by a pair of flange plate 4, the flexibility and operability of electric power pipe system in use process are facilitated by movable pipe 3;The other side of main pipe 2 is fixedly connected with connecting pipe 1 by a pair of flange plate 4, the coherence and expansibility of electric power pipeline are facilitated by connecting pipe 1, facilitate flexible pipeline laying and connection combination under different layout needs;Four bolts 9 are threadedly connected on two pairs of flange plate 4, pipe pillow 5 is installed on the outer wall of the middle part of main pipe 2, the stable placement of main pipe 2 on ground or other installation foundation is facilitated by pipe pillow 5, prevent displacement due to dead weight or external force effect;Flame-retardant film 10 is closely attached on the inner wall of main pipe 2, the flame-retardant property of main pipe 2 is facilitated by flame-retardant film 10, reduces the dangerousness of electric power pipe in fire.

[0019] In the utility model, pipe pillow 5 is composed of multiple pillow blocks 6 that are sleeved on main pipe 2, one side of pillow block 6 is provided with arc-shaped notch for attaching the outer surface of main pipe 2, the arc-shaped notch surface on pillow block 6 is provided with friction block 8 for limiting the lateral deviation of main pipe 2, the lateral fixing capacity of pillow block 6 to main pipe 2 is facilitated by friction block 8, the lateral force performance of electric power pipe in complex environment is improved;Multiple sockets are distributed on pillow block 6, multiple limiting pegs 7 are inserted on socket, multiple pillow blocks 6 are assembled together by limiting peg 7, main pipe 2 is accurately positioned and fixed;The pipe wall of main pipe 2 adopts multilayer structure design, and the pipe wall includes antistatic layer of inner layer, reinforcing layer of middle layer and weather-resistant layer of outer layer, the pipe wall of main pipe 2 adopts multilayer structure design, to provide a relatively closed, safe and durable running environment for electric power cable;Entrance 11 is arranged in movable pipe 3, and outlet 12 is arranged in connecting pipe 1, sealing rubber ring for sealing treatment is arranged between a pair of flange plate 4, the sealing property of the connecting place of main pipe 2 and other pipe fittings is facilitated by sealing rubber ring.

[0020] Working principle: in the utility model for use, first main pipe 2 and connecting pipe 1, movable pipe 3 are connected through flange plate 4, when connecting, first sealing rubber ring is placed between flange plate 4, then bolt 9 is passed through the threaded hole of flange plate 4 and is tightened, the fastening effect of bolt 9 makes flange plate 4 closely adhere to, and even pressure is generated to sealing rubber ring, to realize the sealing of connecting part, then power cable enters main pipe 2 inside through the inlet 11 of movable pipe 3, main pipe 2 is as the main containing and protection space, and the multilayer structure of its pipe wall plays a key role, then pipe pillow 5 supports and positions main pipe 2, and multiple pillow blocks 6 are set on main pipe 2 and are set, and the arc-shaped notch of pillow block 6 closely adheres to the outer wall of main pipe 2, increases the contact area, makes the support more stable, the friction block 8 on the surface of arc-shaped notch utilizes friction force to limit the lateral deviation of main pipe 2, prevents the horizontal displacement of main pipe 2 due to external force, simultaneously, the limiting bolt 7 on pillow block 6 is located in the vertical direction to main pipe 2, by adjusting the insertion depth or position of limiting bolt 7, the main pipe 2 of different diameters can be adapted, the main pipe 2 is ensured not to excessively sink or move up in the vertical direction due to gravity or other vertical external force, so that the main pipe 2 keeps accurate, stable position on pipe pillow 5, reduces the loosening or damage of connecting part due to pipeline displacement, guarantees the reliable operation of power pipe system, finally when encountering fire or high temperature environment, the flame-retardant film 10 on the inner wall of main pipe 2 starts to play a role, by which the use of a flame-retardant cpvc power pipe ends.

[0021] The above merely describes a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A flame retardant cpvc electrical power tube comprising a main tube (2), characterized in that: The main pipe (2) is provided with two pairs of flanges (4), one side of the main pipe (2) is fixedly connected with a movable pipe (3) through a pair of flanges (4), the other side of the main pipe (2) is fixedly connected with a connecting pipe (1) through a pair of flanges (4), four bolts (9) are threadedly connected on the two pairs of flanges (4), a pipe pillow (5) is arranged on the outer wall of the middle part of the main pipe (2), and a fireproof film (10) is tightly attached to the inner wall of the main pipe (2).

2. A flame retardant cpvc electrical power tube according to claim 1, characterized in that: The pipe pillow (5) is composed of a plurality of pillow blocks (6) sleeved on the main pipe (2), an arc-shaped notch for abutting against the outer surface of the main pipe (2) is formed on one side of the pillow block (6), and a friction block (8) for limiting the lateral deviation of the main pipe (2) is arranged on the surface of the arc-shaped notch of the pillow block (6).

3. A flame retardant cpvc electrical power tube according to claim 2, characterized in that: A plurality of sockets are distributed on the pillow block (6), and a plurality of limiting pins (7) are inserted into the sockets.

4. A fire-retardant CPVC electrical power tube according to claim 1, characterized in that: The pipe wall of the main pipe (2) is designed in a multi-layer structure, and the pipe wall comprises an antistatic layer, an enhanced layer and a weather-resistant layer.

5. A fire-retardant CPVC electrical power tube according to claim 1, characterized in that: An inlet (11) is formed in the movable pipe (3), and an outlet (12) is formed in the connecting pipe (1).

6. A fire-retardant CPVC electrical power tube according to claim 1, characterized in that: A sealing rubber ring for sealing treatment is arranged between a pair of flanges (4).

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