Flame-retardant, crush-resistant coal mine cable

By introducing pressure-resistant and moving components into the cable, the problems of heavy weight and poor heat dissipation in coal mines are solved, achieving lightweighting and efficient heat dissipation, and improving the performance of the cable in coal mines.

CN224383953UActive Publication Date: 2026-06-19WANHENG CABLE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WANHENG CABLE CO LTD
Filing Date
2025-05-29
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing cables in coal mines are designed to withstand pressure by piling up filler material, resulting in high weight, difficulty in rapid movement, poor heat dissipation, and a tendency to short-circuit at high temperatures.

Method used

It employs pressure-resistant and moving components, including insulating filler, inner and outer support rings, connecting support plates, heat dissipation grooves, connecting holes, outer insulating rubber sleeves, heat dissipation chambers, and copper foil sleeves. The support rings and heat dissipation grooves improve pressure resistance and heat dissipation efficiency, while the rotating rings and liquid injection grooves improve dragging efficiency and service life.

Benefits of technology

While achieving lightweight design, the cable's compressive strength and heat dissipation efficiency have been improved, reducing its weight, facilitating rapid movement, and extending its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a flame-retardant and pressure-resistant coal mine cable, including a core body. An insulating filler is sleeved on the outer side of the core body. An inner insulating rubber sleeve is sleeved on the outer side of the insulating filler. An inner support ring is sleeved on the outer side of the inner insulating rubber sleeve. An outer support ring is connected to the outer side of the inner support ring. A connecting support plate is connected to the inner side of the outer support ring. A heat dissipation groove is formed on the outer side of the outer support ring. A connecting hole is formed on the inner side of the connecting support plate. An outer insulating rubber sleeve is sleeved on the outer side of the outer support ring. This utility model ensures the cable's support through multiple connecting support plates, guaranteeing its pressure resistance during use in the mine. Furthermore, the multiple connecting support plates form multiple heat dissipation chambers, improving the cable's heat dissipation efficiency. This achieves multiple benefits: ensuring pressure resistance while reducing the amount of filler material, thus reducing the cable's weight and facilitating rapid movement within the mine.
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Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a flame-retardant and pressure-resistant coal mine cable. Background Technology

[0002] From energy extraction to machinery manufacturing, industrial cables play an irreplaceable role in various fields. In the coal mining industry, mining cables, as key connecting components, bear the heavy responsibility of transmitting power and signals. Mining cables are the "nerves" of industrial scenarios, designed specifically for complex industrial environments. Mining cables can transmit signals accurately and stably, meeting the needs of high-speed and reliable data transmission in automation and intelligent manufacturing.

[0003] However, most existing cables are designed to withstand pressure by piling up fillers, which results in cables that are not only heavy and difficult to move quickly in mines, but also have poor heat dissipation and are prone to high-temperature short circuits. To avoid the above technical problems, it is necessary to provide a flame-retardant and pressure-resistant coal mine cable to overcome the defects in the existing technology. Utility Model Content

[0004] This invention provides a flame-retardant, pressure-resistant coal mine cable, which can effectively solve the problems mentioned in the background art, where existing cables mostly rely on piling up fillers for pressure resistance, resulting in cables that are not only heavy and difficult to move quickly within the mine, but also have poor heat dissipation and are prone to high-temperature short circuits.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flame-retardant, pressure-resistant coal mine cable, comprising a core body, wherein a pressure-resistant component is installed on the outside of the core body;

[0006] The pressure-resistant component includes insulating filler, inner insulating rubber sleeve, inner support ring, outer support ring, connecting support plate, heat dissipation groove, connecting hole, outer insulating rubber sleeve, heat dissipation chamber and copper foil sleeve;

[0007] An insulating filler is sleeved on the outside of the battery cell, an inner insulating rubber sleeve is sleeved on the outside of the insulating filler, an inner support ring is sleeved on the outside of the inner insulating rubber sleeve, an outer support ring is connected to the outside of the inner support ring, and a connecting support plate is connected to the inside of the outer support ring.

[0008] The outer support ring has a heat dissipation groove on its outer side, the connecting support plate has a connecting hole on its inner side, an outer insulating rubber sleeve is fitted on the outer side of the outer support ring, a heat dissipation chamber is formed between the connecting support plate and the inner support ring, and a copper foil sleeve is fitted on the outer side of the outer insulating rubber sleeve.

[0009] Preferably, one end of the connecting support plate is welded to the outer support ring, and the other end of the connecting support plate is welded to the inner support ring.

[0010] Preferably, multiple connecting support plates are provided, and the multiple connecting support plates are welded at equal angles to the outer side of the inner support ring.

[0011] Preferably, the outer diameter of the inner insulating rubber sleeve is equal to the inner diameter of the inner support ring, and a plurality of heat dissipation grooves are provided, which are opened at equal angles on the outer side of the outer support ring.

[0012] Preferably, a movable component is installed on the outer side of the copper foil sleeve;

[0013] The moving component includes a rotating ring, a rotating groove, a support block, and a liquid injection tank;

[0014] A rotating ring is fitted onto the outer side of the copper foil sleeve. A rotating groove is formed on the inner side of the rotating ring. A support block is welded to the outer side of the rotating ring. A liquid injection groove is formed at one end of the rotating ring.

[0015] Preferably, a plurality of support blocks are provided, and the plurality of support blocks are welded equidistantly to the outer side of the rotating ring. Two injection grooves are provided, and the two injection grooves are symmetrically provided at both ends of the rotating ring.

[0016] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.

[0017] 1. It is equipped with a pressure-resistant component, which ensures the support of the cable through multiple connecting support plates, so that the cable can be used in the mine with pressure resistance. In addition, multiple connecting support plates form multiple heat dissipation chambers, which improves the heat dissipation efficiency of the cable. This achieves multiple benefits, ensuring pressure resistance while reducing the amount of filling material in the cable, thereby reducing the weight of the cable and facilitating the rapid movement of the cable in the mine.

[0018] 2. Equipped with a movable component, the rotating ring can rotate on the outside of the copper foil sleeve during cable pulling, which facilitates quick cable dragging by miners. Adding an appropriate amount of lubricant between the rotating ring and the copper foil sleeve ensures smooth rotation of the rotating ring. The lubricant also slows down the oxidation of the copper foil sleeve and extends the service life of the cable. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2This is a structural schematic diagram of the anti-compression component of this utility model;

[0023] Figure 3 This is a schematic diagram of the installation structure of the outer insulating rubber sleeve of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the mobile component of this utility model;

[0025] Labels in the diagram: 1. Battery cell;

[0026] 2. Compression-resistant components; 201. Insulating filler; 202. Inner insulating rubber sleeve; 203. Inner support ring; 204. Outer support ring; 205. Connecting support plate; 206. Heat dissipation groove; 207. Connecting hole; 208. Outer insulating rubber sleeve; 209. Heat dissipation chamber; 210. Copper foil sleeve;

[0027] 3. Moving component; 301. Rotating ring; 302. Rotating groove; 303. Support block; 304. Injection tank. Detailed Implementation

[0028] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0029] Example: Figure 1-4 As shown, this utility model provides a technical solution: a flame-retardant and pressure-resistant coal mine cable, including a core body 1, and a pressure-resistant component 2 installed on the outside of the core body 1.

[0030] The pressure-resistant component 2 includes an insulating filler 201, an inner insulating rubber sleeve 202, an inner support ring 203, an outer support ring 204, a connecting support plate 205, a heat dissipation groove 206, a connecting hole 207, an outer insulating rubber sleeve 208, a heat dissipation chamber 209, and a copper foil sleeve 210.

[0031] An insulating filler 201 is sleeved on the outside of the battery cell 1. An inner insulating rubber sleeve 202 is sleeved on the outside of the insulating filler 201. An inner support ring 203 is sleeved on the outside of the inner insulating rubber sleeve 202. An outer support ring 204 is connected to the outside of the inner support ring 203. A connecting support plate 205 is connected to the inside of the outer support ring 204. One end of the connecting support plate 205 is welded to the outer support ring 204, and the other end of the connecting support plate 205 is welded to the inner support ring 203 to improve support. Multiple connecting support plates 205 are provided and welded at equal angles to the outside of the inner support ring 203 to help evenly distribute pressure.

[0032] A heat dissipation groove 206 is provided on the outer side of the outer support ring 204. The outer diameter of the inner insulating rubber sleeve 202 is equal to the inner diameter of the inner support ring 203. Several heat dissipation grooves 206 are provided, and the several heat dissipation grooves 206 are opened at equal angles on the outer side of the outer support ring 204 to facilitate rapid heat dissipation and reduce weight. A connecting hole 207 is provided on the inner side of the connecting support plate 205. An outer insulating rubber sleeve 208 is sleeved on the outer side of the outer support ring 204. A heat dissipation chamber 209 is formed between the connecting support plate 205 and the inner support ring 203. A copper foil sleeve 210 is sleeved on the outer side of the outer insulating rubber sleeve 208.

[0033] A movable component 3 is installed on the outside of the copper foil sleeve 210;

[0034] The moving component 3 includes a rotating ring 301, a rotating groove 302, a support block 303, and an injection groove 304;

[0035] A rotating ring 301 is fitted onto the outer side of the copper foil sleeve 210. A rotating groove 302 is provided on the inner side of the rotating ring 301. A support block 303 is welded to the outer side of the rotating ring 301. A liquid injection groove 304 is provided at one end of the rotating ring 301. Several support blocks 303 are provided and welded equidistantly to the outer side of the rotating ring 301. Two liquid injection grooves 304 are provided and symmetrically provided at both ends of the rotating ring 301 to facilitate the improvement of cable life.

[0036] The working principle and usage process of this utility model are as follows: First, when multiple cables are stacked simultaneously, external pressure is conducted from the outer insulating rubber sleeve 208 to the inside of the cable. At this time, the external pressure is transmitted to the outer support ring 204. Then, this pressure is transmitted to the inner support ring 203 through the connecting support plate 205. This allows the external pressure to be evenly distributed throughout the entire cable, thereby improving the cable's compressive strength and preventing excessive local pressure on the cable's exterior from damaging the core 1 and causing a short circuit. This further ensures the overall compressive strength of the cable. Furthermore, during cable use, the core 1 generates a large amount of heat. At this time, the heat will be transferred to the inside of the heat dissipation chamber 209, and the heat can be evenly transferred to the entire cable through the connecting hole 207. Then, the heat is transferred from the heat dissipation groove 206 to the copper foil sleeve 210, so that heat can be dissipated quickly. The cable support is ensured by multiple connecting support plates 205, so that the cable can be guaranteed to withstand pressure when used in the mine. In addition, the multiple connecting support plates 205 form multiple heat dissipation chambers 209, which improves the heat dissipation efficiency of the cable. This achieves multiple benefits, ensuring pressure resistance while reducing the filling material of the cable, thereby reducing the weight of the cable and facilitating the rapid movement of the cable in the mine.

[0037] Next, the rotating ring 301 has multiple support blocks 303 on its outside. These interlaced support blocks 303 form multiple grooves, allowing the cable to be laid on uneven ground during use, thus expanding the installation range. During the cable pulling process, the rotating ring 301 can rotate on the outside of the copper foil sleeve 210, which facilitates the quick cable dragging by miners and improves cable dragging efficiency. After a period of use, an appropriate amount of lubricant can be added between the rotating ring 301 and the copper foil sleeve 210 through the injection tank 304, ensuring that the rotating ring 301 can rotate smoothly. The lubricant can also slow down the oxidation of the copper foil sleeve 210 and extend the service life of the cable.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flame-retardant, anti-compaction coal mine cable comprising an electrical core (1), characterised in that: A pressure-resistant component (2) is installed on the outside of the battery cell (1); The pressure-resistant component (2) includes an insulating filler (201), an inner insulating rubber sleeve (202), an inner support ring (203), an outer support ring (204), a connecting support plate (205), a heat dissipation groove (206), a connecting hole (207), an outer insulating rubber sleeve (208), a heat dissipation chamber (209), and a copper foil sleeve (210). An insulating filler (201) is sleeved on the outside of the battery cell (1), an inner insulating rubber sleeve (202) is sleeved on the outside of the insulating filler (201), an inner support ring (203) is sleeved on the outside of the inner insulating rubber sleeve (202), an outer support ring (204) is connected to the outside of the inner support ring (203), and a connecting support plate (205) is connected to the inside of the outer support ring (204). The outer support ring (204) has a heat dissipation groove (206) on its outer side, the connecting support plate (205) has a connecting hole (207) on its inner side, the outer support ring (204) is fitted with an outer insulating rubber sleeve (208), a heat dissipation chamber (209) is formed between the connecting support plate (205) and the inner support ring (203), and a copper foil sleeve (210) is fitted with the outer side of the outer insulating rubber sleeve (208).

2. The flame-retardant and compression-resistant coal mine cable according to claim 1, characterized in that: One end of the connecting support plate (205) is welded to the outer support ring (204), and the other end of the connecting support plate (205) is welded to the inner support ring (203).

3. The flame-retardant and compression-resistant coal mine cable according to claim 1, characterized in that: Multiple connecting support plates (205) are provided, and multiple connecting support plates (205) are welded at equal angles to the outside of the inner support ring (203).

4. The flame-retardant and compression-resistant coal mine cable according to claim 1, characterized in that: The outer diameter of the inner insulating rubber sleeve (202) is equal to the inner diameter of the inner support ring (203). Several heat dissipation grooves (206) are provided, and the several heat dissipation grooves (206) are opened at equal angles on the outside of the outer support ring (204).

5. A flame-retardant, compression-resistant coal mine cable according to claim 1, characterized in that: A movable component (3) is installed on the outside of the copper foil sleeve (210); The moving component (3) includes a rotating ring (301), a rotating groove (302), a support block (303), and a liquid injection groove (304); A rotating ring (301) is sleeved on the outer side of the copper foil sleeve (210). A rotating groove (302) is opened on the inner side of the rotating ring (301). A support block (303) is welded on the outer side of the rotating ring (301). A liquid injection groove (304) is opened at one end of the rotating ring (301).

6. A flame-retardant, pressure-resistant coal mine cable according to claim 5, characterized in that: The support blocks (303) are provided in several units, and the support blocks (303) are welded at equal intervals to the outside of the rotating ring (301). There are two injection grooves (304), and the two injection grooves (304) are symmetrically opened at both ends of the rotating ring (301).