Communication flexible cable for gas monitoring of underground manless working face

Abstract

The utility model relates to the technical field of cables, and discloses a communication flexible cable for gas monitoring of an underground manless working face, which comprises a cable, the outer wall of the cable is fixedly connected with a connecting sleeve, the outer wall of the connecting sleeve is provided with a protection assembly and a waterproof assembly, and the protection assembly comprises a steel belt protection sleeve. The steel belt protection sleeve is located on the outer wall of the connecting sleeve, a polyurethane protection sleeve is arranged on the outer wall of the steel belt protection sleeve, the steel belt protection sleeve and the polyurethane protection sleeve are fixed in an adhesive mode through glue, the polyurethane protection sleeve is used for dispersing external tensile force towards the periphery, and a nylon rope belt is arranged on the outer wall of the polyurethane protection sleeve. According to the utility model, external tensile force and impact force are dispersed through the steel belt protection sleeve and the polyurethane protection sleeve, and meanwhile, the nylon rope belt wound on the outer wall of the polyurethane protection sleeve is utilized to resist underground mechanical scraping and collision, so that a protection effect is provided for the cable, and the protection performance of the surface of the cable is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field especially relates to the communication flexible cable of underground unmanned working face gas monitoring. BACKGROUND

[0002] In the modernization coal mining process, underground unmanned working face gradually becomes the trend, it helps advanced automation technology and remote monitoring means, improves the mining efficiency, and guarantees the safety of operating personnel. As a key link, gas monitoring plays a decisive role in timely discovery of gas leakage, carbon monoxide exceeding standard and other safety hazards. The communication flexible cable of underground unmanned working face gas monitoring shoulders the heavy responsibility of transmitting various gas monitoring data, is the key link of ensuring that the monitoring system operates stably, and its performance is directly related to the safety and efficiency of the whole mining operation.

[0003] At present, the commonly used communication flexible cable in underground is relatively simple in structure, mainly comprises conductor, insulating layer and ordinary rubber or plastic sheath in the inside. Its technical principle is to utilize the conductor to carry out electric signal transmission, the insulating layer prevents signal interference and electric leakage, and the ordinary sheath plays a preliminary protection role. In actual use, the basic physical structure of the cable is relied on to maintain its working state in the underground environment, and various gas monitoring devices are connected through the conventional wiring mode to realize data transmission.

[0004] However, this kind of traditional communication flexible cable has certain defects. In the complex working environment of underground, due to external factors such as frequent movement of equipment, mechanical collision in the mining process, the cable is easily affected. In the use process of the cable, the surface is prone to wear and tear due to movement, collision and the like. Once the surface of the cable is worn, not only the protection performance is reduced, the internal cable is exposed, the risks such as short circuit and electric leakage are faced, but also the stability of signal transmission is affected, the gas monitoring data is deviated or interrupted, the safety of underground operation is seriously threatened, the strict requirements of underground unmanned working face on the reliability and stability of the gas monitoring system cannot be met, and therefore the communication flexible cable of underground unmanned working face gas monitoring is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides the communication flexible cable of underground unmanned working face gas monitoring, and aims at improving the problem that the cable is easily affected by external factors such as movement and collision in the use process, and the surface of the cable is worn.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0007] The communication flexible cable of underground unmanned working face gas monitoring, including the cable, the cable outer wall is fixedly connected with the connecting sleeve, the connecting sleeve outer wall is provided with the protection assembly and the waterproof assembly.

[0008] The protective component includes a steel strip protective sleeve located on the outer wall of the connecting sleeve. A polyurethane protective sleeve is provided on the outer wall of the steel strip protective sleeve, and the steel strip protective sleeve and the polyurethane protective sleeve are glued and fixed together. The polyurethane protective sleeve is used to disperse external tensile forces in all directions. A nylon rope is provided on the outer wall of the polyurethane protective sleeve, and the nylon rope is wrapped around the surface of the polyurethane protective sleeve to provide protection for the outer wall of the cable.

[0009] As a further description of the above technical solution:

[0010] The waterproof component includes a thermoplastic polyurethane waterproof sleeve, which is located on the outer wall of the connecting sleeve and is used to block water flow outside the equipment.

[0011] As a further description of the above technical solution:

[0012] The outer wall of the connecting sleeve is provided with a butyl rubber waterproof sleeve, and sealing rings are provided on both sides of the inner wall of the butyl rubber waterproof sleeve.

[0013] As a further description of the above technical solution:

[0014] The sealing ring fits against the outer wall of the connecting sleeve, and the sealing ring is used to seal the connection sleeve and the butyl rubber waterproof sleeve.

[0015] As a further description of the above technical solution:

[0016] A water-absorbing sponge is fixedly connected between the sealing rings on both sides, and the water-absorbing sponge is used to absorb small water droplets in the air.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the polyurethane protective sleeve is provided with a thermoplastic polyurethane waterproof sleeve, and the polyurethane protective sleeve and the thermoplastic polyurethane waterproof sleeve are glued and fixed together.

[0019] As a further description of the above technical solution:

[0020] The thermoplastic polyurethane waterproof sleeve has multiple drainage channels inside, which are used to guide water droplets to the outside of the equipment.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the steel strip protective sleeve and the polyurethane protective sleeve disperse the external tensile and impact forces. At the same time, the nylon rope wrapped around the outer wall of the polyurethane protective sleeve resists mechanical scratches and collisions underground, providing protection for the cable. This solves the problem that the cable surface is easily worn due to external factors such as movement and collision during use, and enhances the protection of the cable surface.

[0023] 2. In this utility model, water flow is blocked by butyl rubber waterproof sleeve and thermoplastic polyurethane waterproof sleeve. At the same time, a sealing ring is used to seal the butyl rubber waterproof sleeve and the connecting sleeve. A water-absorbing sponge is used to absorb small water droplets in the air. Then, the water droplets attached to the surface of the thermoplastic polyurethane waterproof sleeve are guided to the outside of the equipment through the guide channel, which provides a waterproof effect for the cable. This solves the problem that when the cable is in use, external water flow can easily enter the cable through the gaps in the equipment and affect the normal operation of the cable, thus enhancing the waterproofness of the cable. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the communication flexible cable for gas monitoring in unmanned underground working faces proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the nylon rope structure of the communication flexible cable for gas monitoring in unmanned underground working faces proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of the sealing ring structure of the communication flexible cable for gas monitoring in unmanned underground working faces proposed in this utility model.

[0027] Figure 4 This is a schematic diagram of the flow channel structure of the communication flexible cable for gas monitoring in unmanned underground working faces proposed in this utility model.

[0028] Legend:

[0029] 1. Cable; 2. Connecting sleeve; 3. Butyl rubber waterproof sleeve; 4. Steel strip protective sleeve; 5. Polyurethane protective sleeve; 6. Thermoplastic polyurethane waterproof sleeve; 7. Nylon rope; 8. Sealing ring; 9. Water-absorbing sponge; 10. Drainage channel. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 and Figure 2 The present invention provides an embodiment of a communication flexible cable for gas monitoring in an unmanned underground working face, comprising a cable 1, a connecting sleeve 2 fixedly connected to the outer wall of the cable 1, and a protective component and a waterproof component provided on the outer wall of the connecting sleeve 2.

[0032] The protective components include a steel tape protective sleeve 4, located on the outer wall of the connecting sleeve 2, which provides excellent compressive and tensile strength, ensuring that the cable 1 is not easily deformed when subjected to external heavy objects. A polyurethane protective sleeve 5 is provided on the outer wall of the steel tape protective sleeve 4, which is used to disperse the external tensile force in all directions, effectively reducing the local pressure on the cable 1 and protecting it from damage. The steel tape protective sleeve 4 and the polyurethane protective sleeve 5 are fixed together with adhesive to ensure a stable connection between the two and prevent separation during use. A nylon rope 7 is provided on the outer wall of the polyurethane protective sleeve 5, which is wrapped around the surface of the polyurethane protective sleeve 5, increasing the friction of the entire protective system and further enhancing the protective effect. The nylon rope 7 is used to protect the outer wall of the cable 1, effectively resisting scratches and collisions in the external environment and extending the service life of the cable 1.

[0033] Specifically, in the equipment protection process, the polyurethane protective sleeve 5, with its excellent wear resistance, oil resistance, and flexibility, becomes a key component in protecting the cable 1. This material can effectively resist mechanical scratches and impacts in the downhole environment, ensuring the stable operation of the cable 1 under harsh conditions. Furthermore, the application of the steel tape protective sleeve 4 further enhances the compressive strength of the cable 1, preventing deformation and damage caused by heavy objects. The steel tape protective sleeve 4 not only possesses excellent compressive strength but also effectively maintains the integrity of the equipment when subjected to tension, thereby improving the cable 1's ability to withstand external impacts in complex environments. To further enhance the protective effect, nylon rope 7 is wrapped around the surface of the polyurethane protective sleeve 5, providing additional protection for the cable 1. When the cable 1 moves in the complex downhole environment or comes into contact with other objects, the nylon rope 7 wrapped around the surface acts as the first line of defense, preferentially bearing friction. This design allows the cable 1 to more effectively resist scratches from objects such as sand and sharp rocks, thereby significantly reducing wear on the outer sheath and extending the service life of the cable 1. These protective measures have significantly enhanced the overall protective effect of the equipment, providing reliable protection for the use of cable 1 in harsh environments.

[0034] Reference Figure 1 , Figure 3 and Figure 4The waterproof component includes a thermoplastic polyurethane waterproof sleeve 6, which is located on the outer wall of the connecting sleeve 2. The thermoplastic polyurethane waterproof sleeve 6 is used to block water flow outside the equipment, effectively preventing moisture from damaging the internal components of the equipment. The sealing ring 8 is fitted to the outer wall of the connecting sleeve 2, and the sealing ring 8 is used to seal the connection between the connecting sleeve 2 and the butyl rubber waterproof sleeve 3, ensuring that no water seeps in at the connection, thereby enhancing the overall waterproof performance. A water-absorbing sponge 9 is fixedly connected between the two sealing rings 8. The water-absorbing sponge 9 is used to absorb small water droplets in the air, reducing the impact of moisture on the cable 1 and further protecting the safety of the cable 1. The thermoplastic polyurethane waterproof sleeve 6 is set on the outer wall of the polyurethane protective sleeve 5. The polyurethane protective sleeve 5 and the thermoplastic polyurethane waterproof sleeve 6 are fixed together with glue to ensure a tight seal between the two and enhance the firmness of the waterproof component. The thermoplastic polyurethane waterproof sleeve 6 has multiple drainage channels 10 inside, which are used to guide water droplets to the outside of the equipment, effectively reducing the retention of water droplets on the surface of the equipment, thereby reducing the potential threat of moisture to the equipment.

[0035] Specifically, in the waterproofing process of the equipment, the thermoplastic polyurethane waterproof sleeve 6 plays a crucial role, effectively blocking the intrusion of external moisture and protecting the safety of internal components. Simultaneously, the design of the guide channel 10 allows water droplets adhering to the surface of the thermoplastic polyurethane waterproof sleeve 6 to be smoothly guided to the bottom of the equipment. Through gravity, these water droplets separate from the inner wall of the guide channel 10, preventing water droplets from remaining on the equipment surface for extended periods and reducing the potential risk of equipment failure due to water accumulation. To further enhance the protective effect, a butyl rubber waterproof sleeve 3 is used to prevent water from entering the cable 1. The butyl rubber waterproof sleeve 3 has excellent waterproof performance, while the use of the sealing ring 8 enhances the seal between the butyl rubber waterproof sleeve 3 and the connecting sleeve 2, ensuring that moisture cannot seep in through the connection. To deal with small water droplets in the moisture, the absorbent sponge 9 is cleverly designed to absorb these moisture, further reducing the probability of moisture entering the cable 1. Through these comprehensive measures, the overall waterproof capability of the equipment is significantly improved, thereby ensuring the reliability and stability of the cable 1 in humid environments.

[0036] Working principle: During equipment protection, the polyurethane protective sleeve 5, with its excellent wear resistance, oil resistance, and flexibility, effectively resists mechanical scratches and collisions underground. Simultaneously, the steel strip protective sleeve 4 enhances the compressive strength of the cable 1, preventing deformation from heavy objects. The steel strip protective sleeve 4 not only resists compression but also possesses excellent tensile strength, ensuring the integrity of the equipment when stretched, further improving the cable 1's protective capabilities in complex environments. Finally, the nylon rope 7 wrapped around the surface of the polyurethane protective sleeve 5 provides protection for the cable 1. When the cable 1 moves in the complex underground environment or comes into contact with other objects, the surface-wound cable 1 acts as the first line of defense, bearing the friction first. Compared to the original outer sheath of the cable 1, the cable 1 is more resistant to scratches from sand, sharp rocks, and other objects, thereby reducing wear on the outer sheath, extending the service life of the cable 1, and enhancing the equipment's protective function.

[0037] During the waterproofing process, a thermoplastic polyurethane waterproof sleeve 6 is used to block external water, while a guide channel 10 guides water droplets adhering to the surface of the thermoplastic polyurethane waterproof sleeve 6 to the bottom of the equipment. Gravity separates the water droplets from the inner wall of the guide channel 10, preventing water droplets from adhering to the equipment surface for a long time. Next, a butyl rubber waterproof sleeve 3 is used to further prevent water from entering the cable 1. At the same time, a sealing ring 8 is used to enhance the sealing between the butyl rubber waterproof sleeve 3 and the connecting sleeve 2, and an absorbent sponge 9 is used to absorb small water droplets in the moisture, reducing the probability of water entering the cable 1 and enhancing the waterproofing effect of the equipment.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flexible communication cable for gas monitoring in an unmanned underground working face, comprising cable (1), characterized in that: The cable (1) is fixedly connected to a connecting sleeve (2) on its outer wall, and the connecting sleeve (2) is provided with a protective component and a waterproof component on its outer wall; The protective assembly includes a steel strip protective sleeve (4), which is located on the outer wall of the connecting sleeve (2). A polyurethane protective sleeve (5) is provided on the outer wall of the steel strip protective sleeve (4). The steel strip protective sleeve (4) and the polyurethane protective sleeve (5) are glued together. The polyurethane protective sleeve (5) is used to disperse the external tensile force to the surrounding area. A nylon rope (7) is provided on the outer wall of the polyurethane protective sleeve (5). The nylon rope (7) is wrapped around the surface of the polyurethane protective sleeve (5) and is used to provide protection for the outer wall of the cable (1).

2. The communication flexible cable for gas monitoring in unmanned underground working faces according to claim 1, characterized in that: The waterproof component includes a thermoplastic polyurethane waterproof sleeve (6), which is located on the outer wall of the connecting sleeve (2) and is used to block water flow outside the equipment.

3. The communication flexible cable for gas monitoring in unmanned underground working faces according to claim 2, characterized in that: The outer wall of the connecting sleeve (2) is provided with a butyl rubber waterproof sleeve (3), and both sides of the inner wall of the butyl rubber waterproof sleeve (3) are provided with sealing rings (8).

4. The communication flexible cable for gas monitoring in unmanned underground working faces according to claim 3, characterized in that: The sealing ring (8) fits against the outer wall of the connecting sleeve (2), and the sealing ring (8) is used to seal the connection sleeve (2) and the butyl rubber waterproof sleeve (3).

5. The communication flexible cable for gas monitoring in unmanned underground working faces according to claim 4, characterized in that: A water-absorbing sponge (9) is fixedly connected between the sealing rings (8) on both sides. The water-absorbing sponge (9) is used to absorb small water droplets in the air.

6. The communication flexible cable for gas monitoring in unmanned underground working faces according to claim 2, characterized in that: The outer wall of the polyurethane protective sleeve (5) is provided with a thermoplastic polyurethane waterproof sleeve (6), and the polyurethane protective sleeve (5) and the thermoplastic polyurethane waterproof sleeve (6) are glued and fixed together.

7. The communication flexible cable for gas monitoring in unmanned underground working faces according to claim 6, characterized in that: The thermoplastic polyurethane waterproof sleeve (6) has multiple guide grooves (10) inside, which are used to guide water droplets to the outside of the equipment.

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