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CN-224217269-U - Anti-interference underground detection connecting cable

CN224217269UCN 224217269 UCN224217269 UCN 224217269UCN-224217269-U

Abstract

The application belongs to the technical field of cables, and discloses an anti-interference underground detection connecting cable which comprises a sheath layer, wherein a reinforcing layer is arranged in the sheath layer, a moisture-proof layer is arranged in the reinforcing layer, a shielding layer is arranged in the moisture-proof layer, a limiting bulge is arranged in the shielding layer, a flame-retardant filling is wrapped outside the limiting bulge, a supporting pipe is wrapped in the center of the flame-retardant filling, a core pipe is arranged between the supporting pipe and the limiting bulge, and a wire core is arranged in the core pipe. The sheath layer, the reinforcing layer, the moisture-proof layer, the shielding layer, the limiting protrusions, the flame-retardant filling, the supporting tube, the core tube and the wire core are arranged, so that the cable can cope with detection environments with high and low temperature and large acid-base difference, the interference of the external environment and the inside of the cable is reduced, meanwhile, the cable is prevented from being damaged and exposed due to the fact that the cable sheath is easily scratched by sharp foreign matters, and the service life of the cable is prolonged.

Inventors

  • WU YANLEI
  • WU YANQIANG
  • QIU PENGCHAO

Assignees

  • 北京市昆仑线缆制造有限公司

Dates

Publication Date
20260508
Application Date
20250530

Claims (8)

  1. 1. The anti-interference underground detection connecting cable comprises a sheath layer (1) and is characterized in that a reinforcing layer (2) is arranged in the sheath layer (1), a moisture-proof layer (3) is arranged in the reinforcing layer (2), a shielding layer (4) is arranged in the moisture-proof layer (3), a limiting boss (5) is arranged in the shielding layer (4), a flame-retardant filler (51) is wrapped in the outer side of the limiting boss (5), a supporting tube (6) is wrapped in the center of the inner side of the flame-retardant filler (51), a core tube (7) is arranged between the supporting tube (6) and the limiting boss (5), and a wire core (71) is arranged in the core tube (7).
  2. 2. The anti-interference underground detection connecting cable according to claim 1, wherein the moisture-proof layer (3) is made of polyurethane foam plastic.
  3. 3. The anti-interference underground detection connecting cable according to claim 1, wherein the reinforcing layer (2) is a polytetrafluoroethylene sheath embedded with a metal net.
  4. 4. The anti-interference underground detection connecting cable according to claim 1, wherein the outer wall of the sheath layer (1) is provided with annular wear-resistant protection pads (11) distributed at equal intervals, the outer wall of the wear-resistant protection pads (11) is provided with friction strips (12) distributed in a strip shape, and the wear-resistant protection pads (11) are chloroprene rubber pads.
  5. 5. The anti-interference underground detection connecting cable according to claim 1, wherein the limiting protrusion (5) is arc-shaped, a butt joint groove (63) is formed in the limiting protrusion (5), an anti-torsion structure plate (62) is slidably connected in the butt joint groove (63), the anti-torsion structure plate (62) is arranged on the inner wall of the supporting tube (6), and a core tube (7) is arranged between two adjacent anti-torsion structure plates (62).
  6. 6. The anti-interference underground detection connection cable according to claim 5, wherein the torsion-resistant structural plate (62) is a thermoplastic elastic plate, an anti-interference belt (61) is arranged inside the torsion-resistant structural plate (62), and the anti-interference belt (61) is an aluminum foil winding shielding belt.
  7. 7. The anti-interference underground detection connection cable according to claim 1, wherein the flame retardant filler (51) is made of high flame retardant polyethylene.
  8. 8. The anti-interference underground detection connecting cable according to claim 1, wherein the shielding layer (4) is a copper wire braid shielding layer.

Description

Anti-interference underground detection connecting cable Technical Field The utility model relates to the technical field of Y, in particular to an anti-interference underground detection connecting cable. Background The underground detection connection cable is called well logging cable for short, is used for logging, perforation, coring and other operations of various oil and gas wells, can also be used for hydraulic hydrologic measurement, coal field geological exploration, geothermal logging and other aspects, and is used as a connection line for hanging weight connection and transmission of measurement data between a ground system and an underground instrument. The utility model discloses an anti-interference underground detection connecting cable in China patent publication No. CN202420841668.8, which comprises a cable body and an armor sleeve, wherein the cable body comprises a conductor part, an insulating part and a protection part which are arranged from inside to outside, the conductor part comprises a plurality of interwoven core wires, the inner wall of the insulating part is attached to the outer wall of the conductor part, the inner wall of the protection part is attached to the outer wall of the insulating part, the inner wall of the armor sleeve is attached to the outer wall of the protection part, and the armor sleeve is made of metal materials. The inventor considers that the related art has the defects that the armor sleeve arranged on the connecting cable is difficult to cope with the detection environment with high and low temperature and large acid-base difference due to complex underground environment, and the cable sheath is easily scratched by sharp foreign matters to cause damage and exposure of the cable, so that the service life of the cable is reduced. Disclosure of utility model In order to solve the problems, the utility model provides an anti-interference underground detection connecting cable. The technical aim of the utility model is achieved through the following technical scheme that the anti-interference underground detection connecting cable comprises a sheath layer, wherein a reinforcing layer is arranged in the sheath layer, a moisture-proof layer is arranged in the reinforcing layer, a shielding layer is arranged in the moisture-proof layer, a limiting bulge is arranged in the shielding layer, a flame-retardant filler is wrapped outside the limiting bulge, a supporting tube is wrapped in the center of the flame-retardant filler, a core tube is arranged between the supporting tube and the limiting bulge, and a wire core is arranged in the core tube. Through adopting above-mentioned technical scheme, restrictive coating, enhancement layer, dampproof course, shielding layer, spacing arch, fire-retardant packing, stay tube, core and the sinle silk that set up can cope with the detection environment that high low temperature, acid-base difference are big, reduce the interference of external environment and cable inside, avoid sharp-pointed foreign matter to scratch cable crust easily simultaneously and lead to the cable damage to expose, improve the life of cable. Further, the moisture-proof layer is made of polyurethane foam plastic. Through adopting above-mentioned technical scheme, make dampproof course through setting up polyurethane foam, isolated moisture gets into and contacts the sinle silk, improves the life and the interference killing feature of cable. Further, the reinforcing layer is a polytetrafluoroethylene sheath pre-buried with a metal net. Through adopting above-mentioned technical scheme, through setting up the enhancement layer that polytetrafluoroethylene sheath that pre-buried has the metal mesh constitutes, the compressive and tensile ability of reinforcing cable avoids the cable to take place to fracture when removing, strengthens heat-resisting, cold-resistant and acid and alkali resistance ability of cable simultaneously. Further, the outer wall of the sheath layer is provided with annular wear-resistant protection pads distributed at equal intervals, the outer wall of the wear-resistant protection pad is provided with friction strips distributed in a strip shape, and the wear-resistant protection pad is a chloroprene rubber pad. Through adopting above-mentioned technical scheme, through the equidistance that sets up at the restrictive coating outer wall wear-resisting protection pad, can avoid detecting in-process in the pit, sharp object fish tail cable through the friction strip that sets up at wear-resisting protection pad outer wall, makes things convenient for the cable to reduce the bending at the in-process along with detecting instrument removes, reduces the frictional force of cable outer wall and ground in the pit to the cable outer wall protects when moving. Further, the limiting bulge is arc-shaped, a butt joint groove is formed in the limiting bulge, an anti-torsion structure plate is connected to the butt joint groove in a sliding