Anti-interference antistatic cable protection tube

Abstract

The utility model discloses an anti-interference antistatic cable protection tube, and relates to the technical field of cables. The electromagnetic shielding pipe comprises a pipe body, base plates and a #-shaped frame, the pipe body comprises a pressure-resistant protection outer pipe, an electromagnetic shielding middle-layer pipe and an insulation inner pipe which are sequentially arranged from outside to inside, a transverse plate which is transversely arranged is fixed in the insulation inner pipe, the base plates are fixed on the upper surface and the lower surface of the transverse plate, and the side face of each base plate is fixedly connected with a ground wire. #-shaped frames are fixed to the ends of the faces, away from each other, of the two base plates. According to the utility model, through the arrangement of the compression-resistant protection outer pipe, the electromagnetic shielding middle-layer pipe, the substrate, the ground wire, the insulation inner pipe, the transverse plate and the #-shaped frame, the problems that the anti-interference and compression-resistant capabilities of the cable protection pipe are insufficient, the antistatic capability needs to be improved, and the communication cable and the power cable interfere with each other and are insufficient in heat dissipation when being laid in the cable protection pipe are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to cables, and particularly relates to a cable protection pipe with anti-interference and anti-static properties. Background Technique

[0002] A cable protection pipe is also known as a cable conduit, a power cable pipe, a cement cable pipe, a power cable duct, a power cable protection pipe, etc. The cable protection pipe is mainly installed in the section where the communication cable crosses the power line to prevent the power line from breaking and causing a short-circuit accident, causing the communication cable and the steel wire rope to be electrified, so as to protect the cable, the switch, the circuit board, and even the whole machine from being burned out, and also play a certain role in isolating the magnetic field interference of the power line. However, most cable protection pipes are only of a single-layer structure and still have many deficiencies:

[0003] With the continuous development, composite materials made of cement or other non-metals have gradually been replaced by fiberglass, but their anti-interference and compressive resistance capabilities are still not outstanding enough, and they may even be deformed under pressure after being buried underground. Therefore, it is necessary to strengthen their anti-interference and compressive resistance capabilities to meet the actual needs and increase their service life;

[0004] Secondly, the static electricity generated during the operation of the cable usually cannot be conducted out. Although an anti-static layer is usually set for protection, the static electricity still cannot be well guided, which is likely to have a certain impact on the circuit;

[0005] Finally, if the communication cable and the power cable are buried in the same cable protection pipe, it is easy to produce an interference effect on each other, and the large amount of cables stacked and laid will cause insufficient heat dissipation. Content of the Utility Model

[0006] The purpose of the utility model is to provide a cable protection pipe with anti-interference and anti-static properties. By setting a compressive protection outer pipe, an electromagnetic shielding middle pipe, a substrate, a ground wire, an insulating inner pipe, a cross plate, and a cross-shaped frame, the problems of insufficient anti-interference and compressive resistance capabilities, the need to improve the anti-static ability of the cable protection pipe, and the mutual interference and insufficient heat dissipation when laying communication cables and power cables in the cable protection pipe are solved.

[0007] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0008] The utility model is a cable protection pipe with anti-interference and anti-static properties, including a pipe body, a substrate, and a cross-shaped frame. The pipe body includes a compressive protection outer pipe, an electromagnetic shielding middle pipe, and an insulating inner pipe arranged in sequence from outside to inside. A horizontally arranged cross plate is fixed inside the insulating inner pipe. Substrates are fixed on the upper and lower surfaces of the cross plate, and a ground wire is fixedly connected to the side surface of each substrate. Cross-shaped frames are fixed at the ends of the two substrates facing away from each other.

[0009] Further, annular grooves are arranged on the outer peripheral surface of the compression-resistant protective outer tube at equal intervals, and the depth of the annular grooves is less than the thickness of the compression-resistant protective outer tube.

[0010] Further, end pipes are fixed at both ends of the pipe body, and the inner diameter of the end pipes is equal to the inner diameter of the insulating inner tube. The outer diameter of the end pipes is less than the outer diameter of the compression-resistant protective outer tube but greater than the inner diameter of the compression-resistant protective outer tube.

[0011] Further, inner reinforcing ribs are fixedly arranged on the inner wall of the insulating inner tube at equal intervals, and the insulating inner tube, the transverse plate and the inner reinforcing ribs are integrally formed.

[0012] Further, one end of the ground wire far away from the substrate sequentially penetrates through the insulating inner tube, the electromagnetic shielding middle layer tube and the compression-resistant protective outer tube and extends out of the tube body.

[0013] Further, a glass fiber braided tape is embedded and wound and fixed on the outer wall of the insulating inner tube.

[0014] The utility model has the following beneficial effects:

[0015] By arranging the compression-resistant protective outer tube and the electromagnetic shielding middle layer tube, the utility model solves the problems of insufficient anti-interference and compression resistance of the cable protection tube; with the compression-resistant protective outer tube as the outermost structure, the structural strength is increased by cooperating with the opened annular grooves. At the same time, the compression-resistant protective outer tube is also made of a high-strength compression-resistant material (the material is not specifically limited), and the anti-interference protection effect is realized in cooperation with the electromagnetic shielding middle layer tube.

[0016] By arranging the substrate and the ground wire, the utility model solves the problem that the antistatic ability of the cable protection tube needs to be improved; both the communication cable and the power cable are laid in the tube body. When the cable contacts the cross-shaped frame, if static electricity is generated, it will be transmitted to the substrate through the cross-shaped frame, and the static electricity on the substrate will be output through the ground wire and transmitted to the soil where the tube body is buried and then to the ground, so that static electricity will not always remain in the tube body.

[0017] By arranging the insulating inner tube, the transverse plate and the cross-shaped frame, the utility model solves the problems of mutual interference and insufficient heat dissipation when the communication cable and the power cable are laid in the cable protection tube; the communication cable and the power cable are respectively laid and distributed in the insulating inner tubes on the upper and lower layers of the transverse plate, and the relevant cables are separated by the cross-shaped frame to realize partition protection arrangement, which will not cause mutual interference. Moreover, the cables are separated by the cross-shaped frame to reduce the mutual contact area, thereby increasing the heat dissipation area and avoiding certain influence caused by excessive heat during operation. The number of cross-shaped frames can be increased according to actual needs. Description of the Drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments.

[0019] Figure 1 It is a three-dimensional view of an anti-interference and anti-static cable protection pipe;

[0020] Figure 2 It is a structural diagram after the pipe body is sectioned;

[0021] Figure 3 It is a structural diagram of the substrate and the cross-shaped frame;

[0022] Figure 4 It is a structural diagram of the insulating inner pipe;

[0023] Figure 5 It is a cross-sectional view of the insulating inner pipe.

[0024] Reference numerals:

[0025] 1. Pipe body; 101. Compressive protection outer pipe; 1011. Ring groove; 102. Electromagnetic shielding middle layer pipe; 103. Insulating inner pipe; 1031. Horizontal plate; 1032. Glass fiber braided tape; 1033. Inner reinforcing rib; 104. Port pipe; 2. Substrate; 201. Ground wire; 3. Cross-shaped frame. Detailed implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention.

[0027] Please refer to Figures 1-5 As shown, the present invention is an anti-interference and anti-static cable protection pipe, including a pipe body 1, a substrate 2 and a cross-shaped frame 3. The pipe body 1 includes a compressive protection outer pipe 101, an electromagnetic shielding middle layer pipe 102 and an insulating inner pipe 103 which are arranged in sequence from outside to inside. A horizontally arranged horizontal plate 1031 is fixed inside the insulating inner pipe 103. Substrates 2 are fixed on the upper and lower surfaces of the horizontal plate 1031, and a ground wire 201 is fixedly connected to the side surface of each substrate 2. Cross-shaped frames 3 are fixed at the ends of the two substrates 2 facing away from each other;

[0028] The pipe body 1 changes the traditional structure of the protection pipe and is jointly composed of a compressive protection outer pipe 101, an electromagnetic shielding middle layer pipe 102 and an insulating inner pipe 103. It cooperates with the compressive protection outer pipe 101 for compressive protection, cooperates with the electromagnetic shielding middle layer pipe 102 for anti-interference protection, and then cooperates with the innermost insulating inner pipe 103 for insulation protection. A horizontal plate 1031 is arranged inside the insulating inner pipe 103 to separate the internal space for laying communication cables and power cables respectively to prevent mutual interference. When laying the cables, they are placed on the cross-shaped frame 3 for laying, so as to realize the separation between the cables and ensure a good heat dissipation effect;

[0029] If static electricity is generated in the cable, the static electricity is transmitted by the cross-shaped frame 3 to the substrate 2 and then transmitted by the ground wire 201 into the soil, thereby realizing the conduction of static electricity.

[0030] Annular grooves 1011 are arranged on the outer peripheral surface of the compression-resistant protective outer tube 101 at equal intervals, and the depth of the annular grooves 1011 is less than the thickness of the compression-resistant protective outer tube 101; the arrangement of the annular grooves 1011 prevents the surface of the compression-resistant protective outer tube 101 from being too smooth, and a certain annular groove 1011 is set to change the structural form, so that the structural strength is higher and the compression resistance is better.

[0031] Port tubes 104 are fixed at both ends of the tube body 1, and the inner diameter of the port tube 104 is equal to the inner diameter of the insulating inner tube 103. The outer diameter of the port tube 104 is less than the outer diameter of the compression-resistant protective outer tube 101 but greater than the inner diameter of the compression-resistant protective outer tube 101; the port tube 104 can be connected to joints, etc., and a certain closure is carried out on the end of the tube body 1.

[0032] Inner reinforcing ribs 1033 are also fixed on the inner wall of the insulating inner tube 103 at equal intervals, and the insulating inner tube 103, the transverse plate 1031, and the inner reinforcing ribs 1033 are integrally formed;

[0033] The insulating inner tube 103 and the transverse plate 1031 are made of insulating materials, and the inner reinforcing ribs 1033 are provided for structural strengthening and used for insulating protection.

[0034] One end of the ground wire 201 far from the substrate 2 sequentially penetrates through the insulating inner tube 103, the electromagnetic shielding middle layer tube 102, and the compression-resistant protective outer tube 101 and extends out of the tube body 1; the generated static electricity can be introduced into the ground through the ground wire 201.

[0035] A glass fiber braided tape 1032 is embedded and wound and fixed on the outer wall of the insulating inner tube 103; the corrosion resistance, high temperature resistance, and electrical insulation of the insulating inner tube 103 are improved.

[0036] The specific working principle of the present utility model is as follows: the tube body 1 is jointly composed of a compression-resistant protective outer tube 101, an electromagnetic shielding middle layer tube 102, and an insulating inner tube 103. The tube body 1 can be connected to joints, etc. through the port tube 104, and a certain closure is carried out on the end of the tube body 1. The compression-resistant protective outer tube 101 provides compression protection, and cooperates with the electromagnetic shielding middle layer tube 102 for anti-interference protection, and then cooperates with the innermost insulating inner tube 103 for insulating protection. The transverse plate 1031 is provided to separate the internal space for laying communication cables and power cables respectively. When laying the cables, they are placed on the cross-shaped frame 3 for laying. Multiple cross-shaped frames 3 can be installed according to actual needs. Secondly, both the cross-shaped frame 3 and the substrate 2 are conductors. When static electricity is generated, the static electricity is transmitted by the cross-shaped frame 3 to the substrate 2 and then transmitted by the ground wire 201 to the soil in the ground, achieving an anti-static effect.

[0037] The above are only the preferred embodiments of the present utility model, which do not limit the present utility model. Any modification to the technical solutions recorded in the foregoing embodiments, any equivalent replacement of some technical features, and any modification, equivalent replacement, or improvement made shall fall within the protection scope of the present utility model.

Claims

1. An anti-interference and anti-static cable protection pipe, comprising a pipe body (1), a substrate (2) and a cross-shaped frame (3), characterized in that: The tube body (1) includes a compression-resistant protective outer tube (101), an electromagnetic shielding middle layer tube (102), and an insulating inner tube (103) which are arranged in sequence from outside to inside. A horizontal plate (1031) is fixed inside the insulating inner tube (103). Substrate plates (2) are fixed on both the upper and lower surfaces of the horizontal plate (1031). A ground wire (201) is fixedly connected to the side surface of each substrate plate (2). Cross-shaped frames (3) are fixed at the ends of the two substrate plates (2) on the opposite sides.

2. The anti-interference and anti-static cable protection pipe according to claim 1, characterized in that: Equidistantly distributed annular grooves (1011) are arranged on the outer peripheral surface of the compression-resistant protective outer tube (101), and the depth of the annular grooves (1011) is less than the thickness of the compression-resistant protective outer tube (101).

3. The anti-interference and anti-static cable protection pipe according to claim 1, characterized in that: Port tubes (104) are fixed at both ends of the tube body (1). The inner diameter of the port tube (104) is equal to the inner diameter of the insulating inner tube (103). The outer diameter of the port tube (104) is less than the outer diameter of the compression-resistant protective outer tube (101) but greater than the inner diameter of the compression-resistant protective outer tube (101).

4. The anti-interference and anti-static cable protection tube according to claim 1, wherein: Equidistantly distributed inner reinforcing ribs (1033) are also fixed on the inner wall of the insulating inner tube (103). The insulating inner tube (103), the horizontal plate (1031), and the inner reinforcing ribs (1033) are integrally formed.

5. An anti-interference and anti-static cable protection pipe according to claim 1, characterized in that: One end of the ground wire (201) away from the substrate plate (2) sequentially penetrates through the insulating inner tube (103), the electromagnetic shielding middle layer tube (102), and the compression-resistant protective outer tube (101) and extends outside the tube body (1).

6. The anti-interference and anti-static cable protection pipe according to claim 1, wherein: A fiberglass braided tape (1032) is embedded and wound and fixed on the outer wall of the insulating inner tube (103).

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