Flame-retardant plastic insulation control cable

Abstract

The utility model relates to the technical field of control cables, in particular to a flame-retardant plastic insulation control cable. According to the technical scheme, the device comprises a protection mechanism and a limiting sleeve, the protection mechanism comprises an anti-corrosion layer, a heat insulation layer is arranged on the inner wall of the anti-corrosion layer, a damp-proof layer is arranged on the inner wall of the heat insulation layer, multiple sets of flame-retardant pipes are arranged in the protection mechanism, and flame-retardant powder is stored in the flame-retardant pipes. According to the utility model, through combination of various structures, the control cable can extinguish external open fire, the situation that the interior of the control cable is melted and damaged due to the open fire is avoided or reduced, the control cable can work temporarily and normally, the stability of the control cable in use is improved, and the service life of the control cable is prolonged. And the control cable can be subjected to toughness protection during laying, so that the situation that an internal conductor is broken due to a right angle when the control cable is bent and laid is avoided, and the safety of the control cable during laying is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of control cables, in particular to a flame-retardant plastic insulated control cable. Background Art

[0002] The control cable is a polyvinyl chloride insulated and polyvinyl chloride sheathed control cable suitable for industrial and mining enterprises, energy and transportation departments, and for control and protection lines with an AC rated voltage of less than 450 / 750 volts. The "plastic insulated flame-retardant and anti-interference control cable" disclosed in the application number "CN218274016U" has solved the technical disadvantages of insufficient flame retardancy, anti-interference and insulation. However, in actual use, control cables with similar structures still have many defects. For example, most of them are flame-retardant treated on the outside of the cable with flame-retardant materials, and do not have the function of extinguishing open flames when used. When the control cable is exposed to open flames for a long time, the inside will melt due to the high temperature, thereby causing damage to the inside of the cable; at the same time, it does not provide toughness for the control cable when it is bent and laid. When the control cable is laid at a right angle, the internal conductor will break, which will affect the signal transmission of the control cable. Therefore, it is necessary to design a flame-retardant plastic insulated control cable. Utility Model Content

[0003] The utility model aims to provide a flame retardant plastic insulated control cable to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flame-retardant plastic insulated control cable, comprising a protective mechanism and a limiting sleeve, the protective mechanism comprising an anti-corrosion layer, the inner wall of the anti-corrosion layer is provided with a heat insulation layer, and the inner wall of the heat insulation layer is provided with a moisture-proof layer, a plurality of groups of flame-retardant tubes are provided inside the protective mechanism, and flame-retardant powder is stored inside the flame-retardant tubes, flame-retardant sleeves are fixedly installed between the flame-retardant tubes, a plurality of groups of wire holes are provided inside the limiting sleeve, and conductors are fixedly installed inside the wire holes, tough holes are provided between the wire holes, and tough springs are fixedly installed inside the tough holes, and a flexible sleeve is fixedly installed outside the limiting sleeve.

[0005] A flame-retardant plastic insulated control cable using the technical solution, the protection mechanism can protect the outside of the control cable when in use, the anti-corrosion layer in the protection mechanism can perform anti-corrosion treatment on the outside of the control cable when in use, avoiding or reducing the situation that corrosive gases or liquids cause corrosion to the outside of the control cable, the heat insulation layer can perform heat insulation treatment on the control cable when used in a high temperature environment, reducing the situation that external heat is transferred to the inside of the control cable to accelerate aging, the moisture-proof layer can perform moisture-proof treatment on the control cable when used in a humid environment, avoiding or reducing the situation that moisture enters the inside of the control cable and causes a short circuit due to moisture, and the flame-retardant powder inside the flame-retardant tube can splash when the external open flame melts the protection mechanism, so that the open flame can be extinguished by the splashing flame-retardant powder, realizing the function of extinguishing the open flame, avoiding the situation that the flame burns into the inside of the control cable and causes a short circuit, thereby increasing the safety of the control cable when in use and improving the flame-retardant performance;

[0006] The flame retardant sleeve can limit the flame retardant tube and retard the flame, preventing the flame from spreading to the inside of the control cable. Multiple groups of conductors can transmit signals when the control cable is in use. The limit sleeve and the wire hole can limit the conductor when in use, increasing the regularity of the conductors when the control cable is laid by the staff, avoiding the twisting and entanglement of the conductors when the control cable is laid, thereby increasing the stability of the control cable when in use. The tough hole and the tough spring can cooperate to provide elastic support for the control cable when it is bent and laid, avoiding the situation where the control cable appears at right angles when it is bent and laid, causing the internal conductor to break, increasing the safety of the control cable when it is laid, and improving the stability when in use. The flexible sleeve can provide flexible protection for the outside of the limit sleeve.

[0007] Preferably, the inner wall of the moisture-proof layer is provided with a shielding layer, and the inner wall of the shielding layer is provided with an insulating layer. The shielding layer can shield external interference, increase the stability of signal transmission when the control cable is used, and the insulating layer can insulate the outside of the control cable.

[0008] Preferably, the outer wall of the limiting sleeve is provided with a heat dissipation groove, and heat sinks are fixedly installed at equal distances inside the heat dissipation groove. The heat dissipation groove and the heat sink can dissipate heat inside the control cable when in use, thereby increasing the heat dissipation performance of the control cable when in use.

[0009] Preferably, a plurality of groups of reinforcing ribs are fixedly installed at equal distances inside the flexible sleeve. The reinforcing ribs increase the overall strength of the control cable and prevent the control cable from being broken due to excessive tension during use.

[0010] Preferably, an insulating sleeve is fixedly mounted on the outer wall of the conductor, and the insulating sleeve can insulate the outside of the conductor when in use, thereby increasing the safety of the conductor when in use.

[0011] Preferably, the outer wall of the flexible sleeve is provided with a limiting groove, and the limiting groove is in contact with the flame retardant tube. The limiting groove can limit the flame retardant tube when in use, thereby increasing the stability of the flame retardant tube inside the control cable.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By setting up the coordination between the protection mechanism and the flame retardant tube and flame retardant powder, the protection mechanism can protect the outside of the control cable when it is in use. The flame retardant powder in the flame retardant tube can splash when the open flame melts the protection mechanism, so that the open flame outside the control cable can be extinguished by the flame retardant powder, avoiding or reducing the situation where the internal control cable is melted and damaged by the open flame, so that the control cable can temporarily operate normally, increase the flame retardancy of the control cable, and improve the safety during use.

[0014] 2. By setting the cooperation between the limit sleeve and the tough spring, the limit sleeve can limit the conductor in the control cable, which increases the regularity of the conductor when the control cable is laid, and avoids the twisting and entanglement of the conductor when the control cable is laid. Therefore, the stability of the conductor transmission when the control cable is in use is increased. The tough spring can provide tough protection for the control cable when it is laid, and avoids the situation where the internal conductor of the control cable breaks due to right angles when the control cable is bent and laid. Therefore, the safety of the control cable during laying is increased and the stability during use is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the limit sleeve structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the flexible sleeve structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the toughness spring of the utility model;

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the protection mechanism of the utility model.

[0020] In the figure: 1. Protection mechanism; 101. Anti-corrosion layer; 102. Heat insulation layer; 103. Moisture-proof layer; 104. Shielding layer; 105. Insulation layer; 2. Flame retardant sleeve; 3. Flame retardant tube; 301. Flame retardant powder; 4. Flexible sleeve; 401. Reinforcement rib; 402. Limiting groove; 5. Limiting sleeve; 501. Heat dissipation groove; 502. Heat sink; 503. Wire hole; 504. Tough hole; 6. Insulating sleeve; 601. Conductor; 7. Tough spring. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Embodiment 1

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a flame-retardant plastic insulated control cable proposed by the utility model comprises a protection mechanism 1 and a limiting sleeve 5, the protection mechanism 1 comprises an anti-corrosion layer 101, the inner wall of the anti-corrosion layer 101 is provided with a heat insulation layer 102, and the inner wall of the heat insulation layer 102 is provided with a moisture-proof layer 103, a plurality of groups of flame-retardant tubes 3 are arranged inside the protection mechanism 1, and flame-retardant powder 301 is stored inside the flame-retardant tubes 3, flame-retardant sleeves 2 are fixedly installed between the flame-retardant tubes 3, a plurality of groups of wire holes 503 are arranged inside the limiting sleeve 5, and conductors 601 are fixedly installed inside the wire holes 503, toughness holes 504 are arranged between the wire holes 503, and toughness springs 7 are fixedly installed inside the toughness holes 504, and a flexible sleeve 4 is fixedly installed outside the limiting sleeve 5;

[0024] The inner wall of the moisture-proof layer 103 is provided with a shielding layer 104 , and the inner wall of the shielding layer 104 is provided with an insulating layer 105 . The outer wall of the limiting sleeve 5 is provided with a heat dissipation groove 501 , and heat sinks 502 are fixedly installed at equal distances inside the heat dissipation groove 501 .

[0025] The working principle of the flame-retardant plastic insulated control cable based on Example 1 is as follows: the protection mechanism 1 can protect the outside of the control cable when it is in use, the anti-corrosion layer 101 in the protection mechanism 1 can perform anti-corrosion treatment on the outside of the control cable when it is in use, avoiding or reducing the corrosion of the outside of the control cable by corrosive gases or liquids, the heat insulation layer 102 can perform heat insulation treatment on the control cable when it is used in a high temperature environment, reducing the external heat conduction to the inside of the control cable to accelerate aging, and the moisture-proof layer 103 can perform moisture-proof treatment on the control cable when it is used in a humid environment, avoiding or reducing The shielding layer 104 can shield external interference, thereby increasing the stability of signal transmission when the control cable is in use; the insulating layer 105 can insulate the outside of the control cable; the flame retardant powder 301 inside the flame retardant tube 3 can splash when the external open flame melts the protection mechanism 1, thereby extinguishing the open flame through the splashed flame retardant powder 301, thus achieving the function of extinguishing the open flame and avoiding the situation where the flame burns into the inside of the control cable and causes a short circuit, thereby increasing the safety of the control cable when in use and improving the flame retardant performance;

[0026] The flame retardant sleeve 2 can limit the flame retardant tube 3 and can retard the flame, thereby preventing the flame from spreading to the inside of the control cable. Multiple groups of conductors 601 can transmit signals when the control cable is in use. The limiting sleeve 5 and the wire hole 503 can limit the conductor 601 when in use, thereby increasing the regularity of the conductors 601 when the control cable is laid by the staff, thereby preventing the conductors 601 from twisting and entangled when the control cable is laid, thereby increasing the stability of the control cable when in use. The tough hole 504 cooperates with the tough spring 7 to provide elastic support for the control cable when it is bent and laid, thereby preventing the control cable from breaking at right angles when it is bent and laid, thereby increasing the safety of the control cable when it is laid and improving the stability when in use. The flexible sleeve 4 can provide flexible protection for the outside of the limiting sleeve 5, and the heat sink 501 and the heat sink 502 can perform heat dissipation treatment on the inside of the control cable when in use, thereby increasing the heat dissipation performance of the control cable when in use.

[0027] Embodiment 2

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model proposes a flame-retardant plastic insulated control cable. Compared with the first embodiment, this embodiment also includes: a plurality of groups of reinforcing ribs 401 are fixedly installed at equal distances inside the flexible sleeve 4, an insulating sleeve 6 is fixedly installed on the outer wall of the conductor 601, and a limiting groove 402 is provided on the outer wall of the flexible sleeve 4, and the limiting groove 402 is in contact with the flame-retardant tube 3.

[0029] In this embodiment, Figure 3 As shown, the reinforcing rib 401 increases the overall strength of the control cable, thereby preventing the control cable from breaking due to excessive tension during use; Figure 1 and Figure 2 As shown, the insulating sleeve 6 can insulate the outside of the conductor 601 when in use, thereby increasing the safety of the conductor 601 when in use; Figure 3 As shown, the limiting groove 402 can limit the flame retardant tube 3 when in use, thereby increasing the stability of the flame retardant tube 3 inside the control cable.

[0030] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A flame-retardant plastic insulated control cable, comprising a protection mechanism (1) and a limiting sleeve (5), characterized in that: The protection mechanism (1) comprises an anti-corrosion layer (101), the inner wall of the anti-corrosion layer (101) is provided with a heat insulation layer (102), and the inner wall of the heat insulation layer (102) is provided with a moisture-proof layer (103), a plurality of groups of flame-retardant tubes (3) are provided inside the protection mechanism (1), and flame-retardant powder (301) is stored inside the flame-retardant tubes (3), a flame-retardant sleeve (2) is fixedly installed between the flame-retardant tubes (3), a plurality of groups of wire holes (503) are provided inside the limiting sleeve (5), and conductors (601) are fixedly installed inside the wire holes (503), toughness holes (504) are provided between the wire holes (503), and toughness springs (7) are fixedly installed inside the toughness holes (504), and a flexible sleeve (4) is fixedly installed outside the limiting sleeve (5).

2. A flame-retardant plastic insulated control cable according to claim 1, characterized in that: The inner wall of the moisture-proof layer (103) is provided with a shielding layer (104), and the inner wall of the shielding layer (104) is provided with an insulating layer (105).

3. The flame-retardant plastic insulated control cable according to claim 1, characterized in that: The outer wall of the limiting sleeve (5) is provided with a heat dissipation groove (501), and heat dissipation fins (502) are fixedly installed at equal distances inside the heat dissipation groove (501).

4. The flame-retardant plastic insulated control cable according to claim 1, characterized in that: A plurality of groups of reinforcing ribs (401) are fixedly installed at equal intervals inside the flexible sleeve (4).

5. The flame-retardant plastic insulated control cable according to claim 1, characterized in that: An insulating sleeve (6) is fixedly mounted on the outer wall of the conductor (601).

6. The flame-retardant plastic insulated control cable according to claim 1, characterized in that: The outer wall of the flexible sleeve (4) is provided with a limiting groove (402), and the limiting groove (402) is in contact with the flame-retardant tube (3).

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