Mining optical cable and installation method thereof

Abstract

The invention relates to the technical field of optical cables, and discloses a mining optical cable and an installation method thereof, and the mining optical cable comprises a cable body; the telescopic conveying mechanism comprises a plurality of limiting connecting assemblies, arc-shaped telescopic pipes and medium conveying assemblies connected to the limiting connecting assemblies. Each expansion type limiting mechanism comprises an expansion type hoop assembly and a pressure adjusting assembly; the optical cable is formed by combining the cable body and the telescopic conveying mechanism, during installation, the free end of the optical cable is fixed to one end of the telescopic conveying mechanism in a limiting mode, the other end of the telescopic conveying mechanism is connected with the corresponding installation frame in a limiting mode, and then a medium with set pressure intensity is pumped into the telescopic conveying mechanism through external medium pumping equipment; the effect of automatically laying the cable body can be achieved, the occupied space is small, and a protection layer can be formed on the outer side of the cable body after laying and installation are finished.

Description

Technical Field

[0001] The present invention relates to the technical field of optical cables, and more particularly to an optical cable for mining and an installation method thereof. Background Art

[0002] Mining optical cables are used in coal mines, gold mines, iron mines, and other mining environments. Given the complex environment of mines, mining optical cables have high requirements and need to meet performance requirements such as rodent resistance, pressure resistance, and fire resistance.

[0003] Current mining optical cables use metal reinforcements as central supports and metal mesh layers as protective layers. Although these cables meet rodent-proofing and fire-proofing requirements, they are heavy. During installation, conventional optical cable laying machines cannot be used underground in mines and must be manually laid and positioned on corresponding support frames, resulting in increased installation workload and difficulty. Summary of the Invention

[0004] The purpose of the present invention is to provide a mining optical cable and an installation method thereof in order to solve the above problems.

[0005] The present invention provides a mining optical cable, comprising: cable body; A telescopic conveying mechanism, comprising a plurality of position-limiting connection assemblies and arc-shaped telescopic tubes, and a medium conveying assembly connected to the position-limiting connection assemblies. The plurality of arc-shaped telescopic tubes are respectively connected between two adjacent position-limiting connection assemblies. The plurality of position-limiting connection assemblies and arc-shaped telescopic tubes are sleeved on the cable body. The plurality of arc-shaped telescopic tubes are interconnected. The medium conveying assembly is used to adjust the internal pressure of the plurality of arc-shaped telescopic tubes. Several expansion limiting mechanisms, the expansion limiting mechanisms include an expansion hoop assembly and a pressure regulating assembly, the expansion hoop assembly and the pressure regulating assembly are both arranged on the corresponding limiting connection assembly, and the pressure regulating assembly is used to adjust the contact pressure between the expansion hoop assembly and the cable body.

[0006] As a further optimization scheme of the present invention, the limiting connection assembly includes a connecting frame, a plurality of perforations provided on the connecting frame and a medium guide cavity 1, wherein the plurality of perforations are symmetrically provided on the connecting frame, and the medium conveying assembly is connected to the internal space of the corresponding arc-shaped telescopic tube through the corresponding medium guide cavity 1.

[0007] As a further optimized solution of the present invention, an inclined guide plate is connected to the connecting frame, and the lower vertex of the cable body and the lower end surface of the connecting frame both intersect with the lower inclined surface of the inclined guide plate.

[0008] As a further optimization solution of the present invention, both ends of the arc-shaped telescopic tube are fixedly connected to corresponding connecting frames, and the internal space of the arc-shaped telescopic tube is connected to the corresponding medium guide cavity, and the arc-shaped telescopic tube does not contact the inclined guide plate.

[0009] As a further optimization scheme of the present invention, the medium conveying assembly includes a medium guide pipe 1, a medium guide pipe 2 and two sealing covers 1, wherein the medium guide pipe 1 and the medium guide pipe 2 are respectively connected to the connecting frames located at the head and tail positions, and the two sealing covers 1 are respectively detachably connected to the medium guide pipe 1 and the medium guide pipe 2, and the medium guide pipe 1 and the medium guide pipe 2 are respectively connected to the corresponding medium guide cavity 1.

[0010] As a further optimization solution of the present invention, the expandable hoop assembly includes an annular sac, which is fixedly connected to the inner circular surface of the corresponding connecting frame, and when the annular sac is in an initial state, the annular sac is not in contact with the cable body.

[0011] As a further optimization scheme of the present invention, the pressure regulating assembly includes a medium guide tube three, a one-way guide assembly arranged in the medium guide tube three, a medium guide tube four, and a sealing cover two detachably connected to the medium guide tube four. The medium guide tube three and the medium guide tube four are both fixedly connected to the connecting frame. The connecting frame is provided with a medium guide cavity two and a medium guide cavity three. The annular capsule and the medium guide tube three are connected through the medium guide cavity two, and the annular capsule and the medium guide tube four are connected through the medium guide cavity three.

[0012] As a further optimization scheme of the present invention, the one-way flow guide assembly includes a fixed frame and a fixed ring plate fixedly connected to the three inner walls of the medium guide tube, a sliding rod slidably connected to the fixed frame, a blocking plate fixedly connected to the sliding rod, and a spring fixedly connected between the fixed frame and the blocking plate, and the blocking plate is used to seal the fixed ring plate.

[0013] A method for installing a mining optical cable, using the above-mentioned mining optical cable, comprises the following steps: Step 100: Insert the free end of the cable body from one end of the telescopic conveying mechanism until the free end of the cable body moves to the other end of the telescopic conveying mechanism; Step 200: The expandable hoop assembly on the limit connection assembly at the free end of the cable body contacts the free end of the cable body through the pressure regulating assembly and generates a set pressure; Step 300: Fixedly connect the limit connection assembly at one end of the telescopic conveying mechanism to the support frame under the mine; Step 400, connect the input end of the medium conveying assembly with the external medium pumping device, convey the medium with a set pressure into the arc-shaped telescopic pipe through the external medium pumping device until the free end of the cable body moves to the specified installation position coordinate and stops; Step 500, fix and connect all the limiting connection assemblies with the underground support frame, and adjust the expansion type hoop assemblies on the other limiting connection assemblies to be in contact with the cable body and generate a set pressure.

[0014] The beneficial effects of the present application are that the optical cable is composed of a cable body and a telescopic conveying mechanism, in the installation, the free end of the optical cable is fixed and limited with one end of the telescopic conveying mechanism, the other end of the telescopic conveying mechanism is limited and connected with the corresponding installation frame, then the medium with a set pressure is pumped into the telescopic conveying mechanism through the external medium pumping device, the effect of automatic laying of the cable body is realized, the occupied space is smaller, and after the laying and installation are completed, a protective layer can be formed outside the cable body, which can effectively resist the possible burst of the ore body underground, and the use safety of the optical cable is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the overall structure schematic diagram of the present application; Figure 2 is the partial sectional view of the limiting connection assembly of the present application; Figure 3 is the Figure 2 enlarged view of A in the present application; Figure 4 is the sectional view of the arc-shaped telescopic pipe of the present application; Figure 5 is the cooperation view of the telescopic conveying mechanism and the cable body of the present application.

[0016] In the figure: 1, cable body; 21, limiting connection assembly; 2101, connecting frame; 2102, through hole; 2103, medium flow guide channel one; 2104, obliquely arranged guide plate; 2105, medium flow guide pipe one; 2106, medium flow guide pipe two; 22, arc-shaped telescopic pipe; 301, annular capsule; 302, medium flow guide pipe three; 303, medium flow guide channel two; 304, medium flow guide channel three; 305, medium flow guide pipe four; 306, sealing cover two; 4, one-way flow guide assembly; 401, fixed frame; 402, fixed ring plate; 403, sliding rod; 404, blocking plate; 405, spring. DETAILED DESCRIPTION

[0017] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that these implementations are discussed merely to provide a more thorough understanding of the subject matter described herein. In addition, features described with respect to some examples can be combined in other examples.

[0018] As shown in Figures 1 to 5 , a mine optical cable comprises: a cable body 1; a telescopic conveying mechanism, the telescopic conveying mechanism comprising a plurality of limiting connection assemblies 21, a plurality of arc-shaped telescopic pipes 22, and a medium conveying assembly connected to the limiting connection assemblies 21, the plurality of arc-shaped telescopic pipes 22 being connected between adjacent two limiting connection assemblies 21 respectively, the plurality of limiting connection assemblies 21 and the plurality of arc-shaped telescopic pipes 22 being sleeved on the cable body 1, the plurality of arc-shaped telescopic pipes 22 being mutually communicated, and the medium conveying assembly being used for adjusting internal pressure of the plurality of arc-shaped telescopic pipes 22. a plurality of expansion limiting mechanisms, the expansion limiting mechanism comprising an expansion hoop assembly and a pressure adjusting assembly, the expansion hoop assembly and the pressure adjusting assembly being arranged on the corresponding limiting connection assembly 21, and the pressure adjusting assembly being used for adjusting contact pressure of the expansion hoop assembly and the cable body 1.

[0019] It should be noted that, when the optical cable is installed underground, the following steps are specifically included: Step one, the free end of the cable body 1 is inserted from one end of the telescopic conveying mechanism until the free end of the cable body 1 moves to the other end of the telescopic conveying mechanism; Step two, the expansion hoop assembly of the limiting connection assembly 21 on which the pressure adjusting assembly is located at the free end of the cable body 1 is contacted with the free end of the cable body 1 and generates a set pressure; Step three, the limiting connection assembly 21 at one end of the telescopic conveying mechanism is fixedly connected with an underground support frame; Step four, an input end of the medium conveying assembly is connected with an external medium pumping device, a medium with a set pressure is conveyed into the arc-shaped telescopic pipe 22 through the external medium pumping device until the free end of the cable body 1 moves to a designated installation position coordinate; Step five, all the limiting connection assemblies 21 are fixedly connected with the underground support frame, and the expansion hoop assemblies on the other limiting connection assemblies 21 are adjusted to be contacted with the cable body 1 and generate a set pressure.

[0020] In an optional embodiment of the present application, as shown in Figure 1 , Figure 2 , Figure 4 and Figure 5 , the limiting connection assembly 21 comprises a connecting frame 2101, a plurality of through holes 2102 arranged on the connecting frame 2101, and a medium flow guide cavity 1 2103, the plurality of through holes 2102 being symmetrically arranged on the connecting frame 2101, and the medium conveying assembly being connected with the internal space of the corresponding arc-shaped telescopic pipe 22 through the corresponding medium flow guide cavity 1 2103.

[0021] The connecting frame 2101 is connected with an obliquely arranged guide plate 2104, and the lower vertex of the cable body 1 and the lower end surface of the connecting frame 2101 both intersect with the lower inclined surface of the obliquely arranged guide plate 2104.

[0022] The two ends of the arc-shaped telescopic pipe 22 are fixedly connected with the corresponding connecting frames 2101 respectively, and the internal space of the arc-shaped telescopic pipe 22 is in communication with the corresponding medium flow guide channel 2103, and the arc-shaped telescopic pipe 22 does not contact the obliquely arranged guide plate 2104.

[0023] The medium conveying assembly comprises a medium flow guide pipe 2105, a medium flow guide pipe 2106 and two sealing covers 2107, the medium flow guide pipe 2105 and the medium flow guide pipe 2106 are connected on the connecting frames 2101 located at the head and tail positions respectively, the two sealing covers 2107 are detachably connected with the medium flow guide pipe 2105 and the medium flow guide pipe 2106 respectively, and the medium flow guide pipe 2105 and the medium flow guide pipe 2106 are in communication with the corresponding medium flow guide channel 2103 respectively.

[0024] It should be noted that, as described above, after the pressure adjusting assembly adjusts the inflatable hoop assembly to be in close contact with the cable body 1 and forms a limiting connection relationship, the medium flow guide pipe 2106 on the connecting frame 2101 located at the free end needs to be sealed by the sealing cover 2107, at this time, all the arc-shaped telescopic pipes 22 are in communication with each other through the medium flow guide channel 2103 on the corresponding connecting frame 2101, at this time, the external medium pumping equipment is connected with the medium flow guide pipe 2105, and the medium with a set pressure can be introduced into the arc-shaped telescopic pipe 22, which can be a gas or a liquid, with the increase of the amount of the medium in the arc-shaped telescopic pipe 22, a pressure with a set value is formed, and the pressure acts on the limiting connection assembly 21, so that the limiting connection assembly 21 moves towards the direction of the free end of the cable body 1, at this time, the arc-shaped telescopic pipe 22 is in a stretched state, because the pressure is always maintained at a set value, therefore, the limiting connection assembly 21 and the cable body 1 can be provided with a set bending moment by the arc-shaped telescopic pipe 22, so that the cable body 1 can move towards the fixed installation track under the limiting action of the arc-shaped telescopic pipe 22 and the connecting frame 2101, but the distance between the installation supports underground is relatively long, although the arc-shaped telescopic pipe 22 can provide a bending moment, the free end of the cable body 1 may still be bent and deformed when it is in the area between the two installation supports, in order to prevent the connecting frame 2101 from being hindered when it moves to the installation support, the obliquely arranged guide plate 2104 is arranged on the connecting frame 2101, when the obliquely arranged guide plate 2104 contacts the installation support, under the action of subsequent thrust, the connecting frame 2101 can move along the inclination angle of the lower inclined surface of the obliquely arranged guide plate 2104, so that the connecting frame 2101 can stably move to the installation support, thereby preventing the connecting frame 2101 from being hindered in the stroke. The gap area on the arc-shaped telescopic pipe 22 does not affect the contact between the inclined guide plate 2104 and the mounting bracket, and the arc-shaped telescopic pipe 22 can cover a larger area of the cable 1. After the installation is completed, the medium flow guide pipe 2105 can be connected to the external medium pumping equipment through the long pipe, so that the medium is driven to circulate in all the arc-shaped telescopic pipes 22, which can effectively cool and form an external protective layer for the cable 1, and prevent the cable 1 from being damaged by the ejected solids underground.

[0025] In an optional embodiment of the present application, as shown in Figure 2 and Figure 3 The inflatable hoop assembly includes a ring-shaped capsule 301 fixedly connected to the inner circular surface of the corresponding connecting frame 2101, and the ring-shaped capsule 301 is not in contact with the cable 1 when it is in the initial state.

[0026] The pressure regulating assembly includes a medium flow guide pipe three 302, a one-way flow guide assembly 4 arranged in the medium flow guide pipe three 302, a medium flow guide pipe four 305, and a detachable sealing cover two 306 connected to the medium flow guide pipe four 305. The medium flow guide pipe three 302 and the medium flow guide pipe four 305 are fixedly connected to the connecting frame 2101, and the connecting frame 2101 is internally provided with a medium flow guide cavity two 303 and a medium flow guide cavity three 304. The ring-shaped capsule 301 and the medium flow guide pipe three 302 are communicated through the medium flow guide cavity two 303, and the ring-shaped capsule 301 and the medium flow guide pipe four 305 are communicated through the medium flow guide cavity three 304.

[0027] The one-way flow guide assembly 4 includes a fixed frame 401 and a fixed ring plate 402 fixedly connected to the inner wall of the medium flow guide pipe three 302, a sliding rod 403 slidingly connected to the fixed frame 401, a blocking plate 404 fixedly connected to the sliding rod 403, and a spring 405 fixedly connected between the fixed frame 401 and the blocking plate 404. The blocking plate 404 is used to block the fixed ring plate 402.

[0028] It should be noted that, as described above, when the deformation of the inflatable hoop assembly is adjusted to contact the cable 1, the medium pumping device is connected with the through hole 2102 by being held by the worker, and the medium is pumped into the medium guide channel two 303 in one direction, the medium can be gas. After the gas flows through the gap between the fixed frame 401 and the medium guide pipe three 302 and the middle space of the fixed ring plate 402, the gas pressure is generated on the blocking plate 404, so that the blocking plate 404 is separated from the fixed ring plate 402, so that the gas can enter the medium guide channel two 303 from the fixed ring plate 402 and gradually enter the annular capsule 301, so that the amount of gas in the annular capsule 301 gradually increases, so that the annular capsule 301 is inflated and contacted with the cable 1. After the annular capsule 301 exerts a set value of pressure on the cable 1, a limiting connection relationship between the connecting frame 2101 and the cable 1 is formed. When disassembling, the sealing cover two 306 on the medium guide pipe four 305 is unscrewed, so that the gas in the annular capsule 301 is discharged from the medium guide channel three 304 to the medium guide pipe four 305, thereby realizing the resetting of the annular capsule 301.

[0029] The above describes the embodiment, but the embodiment is not limited to the specific implementation described above. The specific implementation described above is only illustrative, not limiting. Those skilled in the art can make many forms under the inspiration of the embodiment, which are all within the protection of the embodiment.

Claims

1. A mining optical cable, characterized in that: include: Cable body (1); A telescopic conveying mechanism, the telescopic conveying mechanism comprising a plurality of position-limiting connection components (21) and arc-shaped telescopic tubes (22) and a medium conveying component connected to the position-limiting connection components (21), the plurality of arc-shaped telescopic tubes (22) being respectively connected between two adjacent position-limiting connection components (21), the plurality of position-limiting connection components (21) and the arc-shaped telescopic tubes (22) being sleeved on the cable body (1), the plurality of arc-shaped telescopic tubes (22) being mutually conductive, and the medium conveying component being used to adjust the internal pressure of the plurality of arc-shaped telescopic tubes (22); A plurality of expansion type limiting mechanisms, wherein the expansion type limiting mechanisms include an expansion type hoop assembly and a pressure regulating assembly, wherein the expansion type hoop assembly and the pressure regulating assembly are both arranged on corresponding limiting connection assemblies (21), and the pressure regulating assembly is used to regulate the contact pressure between the expansion type hoop assembly and the cable body (1).

2. A mining optical cable according to claim 1, characterized in that: The position-limiting connection assembly (21) comprises a connection frame (2101), a plurality of through-holes (2102) provided on the connection frame (2101), and a medium guide cavity (2103). The plurality of through-holes (2102) are symmetrically provided on the connection frame (2101). The medium conveying assembly is connected to the internal space of the corresponding arc-shaped telescopic tube (22) through the corresponding medium guide cavity (2103).

3. A mining optical cable according to claim 2, characterized in that: An inclined guide plate (2104) is connected to the connecting frame (2101), and the lower vertex of the cable body (1) and the lower end surface of the connecting frame (2101) both intersect with the lower inclined surface of the inclined guide plate (2104).

4. A mining optical cable according to claim 3, characterized in that: The two ends of the arc-shaped telescopic tube (22) are respectively fixedly connected to the corresponding connecting frames (2101), and the internal space of the arc-shaped telescopic tube (22) is connected to the corresponding medium guide cavity (2103), and the arc-shaped telescopic tube (22) does not contact the inclined guide plate (2104).

5. A mining optical cable according to claim 4, characterized in that: The medium conveying assembly includes a medium guide tube 1 (2105), a medium guide tube 2 (2106) and two sealing covers 1, wherein the medium guide tube 1 (2105) and the medium guide tube 2 (2106) are respectively connected to the connecting frame (2101) located at the head and tail positions, and the two sealing covers 1 are respectively detachably connected to the medium guide tube 1 (2105) and the medium guide tube 2 (2106), and the medium guide tube 1 (2105) and the medium guide tube 2 (2106) are respectively connected to the corresponding medium guide cavity 1 (2103).

6. A mining optical cable according to claim 5, characterized in that: The expandable hoop assembly comprises an annular sac (301), wherein the annular sac (301) is fixedly connected to the inner circular surface of the corresponding connecting frame (2101), and when the annular sac (301) is in an initial state, the annular sac (301) is not in contact with the cable body (1).

7. A mining optical cable according to claim 6, characterized in that: The pressure regulating assembly includes a medium guide tube three (302), a one-way guide assembly (4) arranged in the medium guide tube three (302), a medium guide tube four (305), and a sealing cover two (306) detachably connected to the medium guide tube four (305). The medium guide tube three (302) and the medium guide tube four (305) are both fixedly connected to the connecting frame (2101). The connecting frame (2101) is provided with a medium guide cavity two (303) and a medium guide cavity three (304). The annular capsule (301) and the medium guide tube three (302) are communicated through the medium guide cavity two (303), and the annular capsule (301) and the medium guide tube four (305) are communicated through the medium guide cavity three (304).

8. The mining optical cable according to claim 7, characterized in that: The one-way flow guide assembly (4) comprises a fixing frame (401) and a fixing ring plate (402) fixedly connected to the inner wall of the medium flow guide pipe (302), a sliding rod (403) slidably connected to the fixing frame (401), a blocking plate (404) fixedly connected to the sliding rod (403), and a spring (405) fixedly connected between the fixing frame (401) and the blocking plate (404), wherein the blocking plate (404) is used to block the fixing ring plate (402).

9. A method for installing a mining optical cable, characterized in that: Using a mining optical cable according to any one of claims 1 to 8, comprising the following steps: Step 100: insert the free end of the cable body (1) from one end of the telescopic conveying mechanism until the free end of the cable body (1) moves to the other end of the telescopic conveying mechanism; Step 200: The expansion hoop assembly on the limit connection assembly (21) located at the free end of the cable body (1) contacts the free end of the cable body (1) through the pressure regulating assembly and generates a set pressure; Step 300: fixedly connecting the limit connection assembly (21) at one end of the telescopic conveying mechanism to the support frame under the mine; Step 400: Connect the input end of the medium delivery component to an external medium pumping device, and deliver a medium of a set pressure into the arc-shaped telescopic tube (22) through the external medium pumping device until the free end of the cable body (1) moves to the designated installation position coordinates; Step 500: All the position-limiting connection assemblies (21) are fixedly connected to the support frame under the mine, and the expansion hoop assemblies on the other position-limiting connection assemblies (21) are adjusted to contact with the cable body (1) and generate a set pressure.

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