A compression-resistant mining cable

Abstract

The utility model relates to cable technical field, concretely is a kind of anti-pressure mine cable, including inner protective layer, the inside of inner protective layer is fixed with limit strip, and the inside of inner protective layer is equipped with cable, and limit strip is positioned to cable, and the outside of inner protective layer is equipped with outer protective layer, and the surface of outer protective layer is equipped with buffer groove;Beneficial effects are: by setting multiple limit strips in the inside of inner protective layer, multiple limit strips constitute anti-pressure framework, multiple cable is separated and positioned, and cable is also wrapped up simultaneously.This structure can effectively disperse external extrusion force, reduce the direct pressure of single cable, so as to significantly improve the compression resistance of cable, reduce the risk of cable damage due to compression.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a pressure-resistant mining cable. Background Technology

[0002] In complex operating environments such as mining, mining cables, as key carriers of power transmission and signal transmission, face numerous severe challenges. Mining environments are typically characterized by confined spaces, numerous pieces of equipment, and frequent operational activities, making cables highly susceptible to various external forces such as compression and impact during laying and use.

[0003] Traditional mining cables have a relatively simple structural design and lack effective pressure protection mechanisms. When the cable is subjected to external compression, the internal cable wires will directly bear the pressure, which may lead to damage to the cable insulation layer, deformation or even breakage of the conductor, resulting in problems such as power transmission interruption and abnormal signal transmission, seriously affecting the normal operation of mining production, and even causing safety accidents, causing serious harm to personnel and equipment.

[0004] Furthermore, with the continuous expansion of mining scale and the increasing level of automation, the performance requirements for mining cables are also becoming increasingly stringent. Cables are not only required to have excellent power transmission and signal transmission capabilities, but also to possess higher compressive strength to adapt to the complex and harsh mining operating environment. However, existing mining cables are insufficient to meet these growing demands; therefore, developing a mining cable with excellent compressive strength is of significant practical importance. Utility Model Content

[0005] The purpose of this invention is to provide a pressure-resistant mining cable to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure-resistant mining cable, including an inner protective layer, a limiting strip fixed inside the inner protective layer, a cable wire provided inside the inner protective layer, the limiting strip limiting the cable wire, an outer protective layer fixedly sleeved on the outside of the inner protective layer, and a buffer groove formed on the surface of the outer protective layer.

[0007] Preferably, there are multiple limiting strips, each corresponding to a cable, and the limiting strips and cables are distributed alternately. The inner ring surface of the limiting strip has two arc surfaces for limiting the two cables.

[0008] Preferably, the length of the limiting strip is equal to the length of the inner protective layer, and the surface of the limiting strip is provided with an expansion groove.

[0009] Preferably, the buffer groove is provided in multiple ways, and the multiple buffer grooves are distributed in a circle with the inner protective layer as the center line.

[0010] Preferably, the outer wall of the outer protective layer has a slot, which is an arc-shaped groove. The length of the long side of the slot is equal to the linear length of the outer protective layer. The outer wall of the outer protective layer is fixed with a strip, which is an arc-shaped strip. When the two inner protective layers are assembled side by side, the strip on the surface of one inner protective layer is inserted into the slot on the surface of the other inner protective layer.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The pressure-resistant mining cable proposed in this invention features multiple limiting strips inside the inner protective layer. These limiting strips form a pressure-resistant skeleton, separating and limiting multiple cables while simultaneously encasing them. This structure effectively disperses external compressive force, reducing direct pressure on individual cables, thereby significantly improving the cable's pressure resistance and lowering the risk of cable damage due to pressure.

[0013] Multiple buffer grooves are formed on the surface of a fixed outer protective layer, which is fitted over the inner protective layer. These grooves are arranged circumferentially around the inner protective layer. This design allows the cable to gain increased compressive strength from multiple directions after installation. When the cable is subjected to compression from different directions, the outer protective layer is cushioned at the buffer grooves. Simultaneously, the outer protective layer fills the grooves under pressure, increasing the contact area between the outer surface of the outer protective layer and the compressing object, thereby reducing pressure and effectively protecting the internal structure of the cable from damage. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the inner protective layer and the limiting strip of this utility model;

[0016] Figure 3 This is a schematic diagram of the outer protective layer structure of this utility model.

[0017] In the diagram: 1. Inner protective layer; 2. Limiting strip; 3. Cable; 4. Expansion groove; 5. Outer protective layer; 6. Buffer groove; 7. Card slot; 8. Card strip. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Please see Figures 1 to 3 This utility model provides a technical solution: a pressure-resistant mining cable, including an inner protective layer 1, with limiting strips 2 fixed inside the inner protective layer 1, and cable lines 3 disposed inside the inner protective layer 1. Multiple limiting strips 2 are provided, with each limiting strip 2 corresponding to a cable line 3, and the limiting strips 2 and cable lines 3 are distributed alternately. The inner ring surface of the limiting strip 2 has two arc surfaces for limiting two cable lines 3. The limiting strip 2 limits the cable lines 3, and the length of the limiting strip 2 is equal to the length of the inner protective layer 1. Expansion grooves 4 are formed on the surface of the limiting strip 2. Multiple limiting strips 2 form a pressure-resistant skeleton inside the inner protective layer 1, achieving separation and limiting of multiple cable lines 3 while simultaneously wrapping the cable lines 3, thus improving the pressure resistance of the cable lines 3.

[0020] An outer protective layer 5 is fixedly fitted onto the outer side of the inner protective layer 1. Buffer grooves 6 are formed on the surface of the outer protective layer 5. Multiple buffer grooves 6 are arranged in a circular pattern around the inner protective layer 1. This circular distribution of buffer grooves 6 on the outer side of the inner protective layer 1 enhances the compressive strength of the inner protective layer 1 after installation. When the inner protective layer 1 is compressed, the outer protective layer 5 receives a buffer at the buffer grooves 6, and the outer protective layer 5 fills the grooves 6 after being compressed, thereby increasing the contact area between the outer ring surface of the outer protective layer 5 and the object applying the compressive force, thus reducing the pressure.

[0021] The outer wall of the outer protective layer 5 is provided with a slot 7, which is an arc-shaped groove. The length of the long side of the slot 7 is equal to the linear length of the outer protective layer 5. The outer wall of the outer protective layer 5 is fixed with a strip 8, which is an arc-shaped strip. When two inner protective layers 1 are assembled side by side, the strip 8 on the surface of one inner protective layer 1 is inserted into the slot 7 on the surface of the other inner protective layer 1, which facilitates the side-by-side combination and use of multiple inner protective layers 1.

[0022] Instructions for using pressure-resistant mining cables: During cable installation, lay the cables according to actual requirements. The inner protective layer 1 contains multiple limiting strips 2 that form a pressure-resistant skeleton, separating and limiting the multiple cable lines 3. Simultaneously, the multiple limiting strips 2 wrap around the cable lines 3, effectively improving their pressure resistance. During installation, even if the cable is compressed, the expansion grooves 4 of the limiting strips 2 provide a buffer space, reducing direct pressure on the cable lines 3. When the cable is subjected to external compression, the buffer grooves 6 on the surface of the outer protective layer 5 function. When the inner protective layer 1 is compressed, the outer protective layer 5 is buffered at the buffer grooves 6, and the outer protective layer 5, after being compressed, fills the grooves 6, thereby increasing the contact area between the outer ring surface of the outer protective layer 5 and the compressing object, reducing pressure, and protecting the internal structure of the cable from damage. When multiple cables need to be used side-by-side, first place two cables side-by-side, bringing their outer protective layers 5 close together. Align the retaining strip 8 on the surface of the outer protective layer 5 of one cable with the retaining groove 7 on the surface of the outer protective layer 5 of another cable, and then slowly push the cable to insert the retaining strip 8 into the groove 7. Since the groove 7 is an arc-shaped slot with its long side equal to the length of the outer protective layer 5, and the retaining strip 8 is an arc-shaped strip, it ensures that the retaining strip 8 can be smoothly inserted into the groove 7, enabling the two cables to be combined side-by-side. If more cables need to be combined side-by-side, insert the retaining strip 8 of each cable into the groove 7 of the adjacent cable in sequence, completing the side-by-side combination of multiple cables.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure-resistant mining cable, comprising an inner protective layer (1), characterized in that: The inner protective layer (1) has a fixed limiting strip (2) inside, and a cable (3) is provided inside the inner protective layer (1). The limiting strip (2) limits the cable (3). An outer protective layer (5) is fixed on the outside of the inner protective layer (1), and a buffer groove (6) is provided on the surface of the outer protective layer (5).

2. The compression-resistant mining cable according to claim 1, characterized in that: The limiting strip (2) is provided in multiple ways, and the limiting strip (2) and the cable (3) correspond one-to-one. The limiting strip (2) and the cable (3) are distributed alternately. The inner ring surface of the limiting strip (2) is provided with two arc surfaces for limiting the two cables (3).

3. The compression-resistant mining cable according to claim 1, characterized in that: The length of the limiting strip (2) is equal to the length of the inner protective layer (1), and the surface of the limiting strip (2) is provided with a telescopic groove (4).

4. The compression-resistant mining cable according to claim 1, characterized in that: The buffer groove (6) is provided in multiple ways, and the multiple buffer grooves (6) are distributed in a circle with the inner protective layer (1) as the center line.

5. The compression-resistant mining cable according to claim 1, characterized in that: The outer protective layer (5) has a slot (7) on its outer wall. The slot (7) is an arc-shaped groove. The length of the long side of the slot (7) is equal to the length of the outer protective layer (5). The outer wall of the outer protective layer (5) is fixed with a strip (8). The strip (8) is an arc-shaped strip. When the two inner protective layers (1) are assembled side by side, the strip (8) on the surface of one inner protective layer (1) is inserted into the slot (7) on the surface of the other inner protective layer (1).

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