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CN-122025239-A - Compression-resistant cable

CN122025239ACN 122025239 ACN122025239 ACN 122025239ACN-122025239-A

Abstract

The invention relates to the technical field of cables, in particular to a compression-resistant cable which comprises a sliding sleeve, a built-in cable core, cage-shaped parts and a plurality of cable cores, wherein the built-in cable core is provided with a stretching distance in an inner cavity of the sliding sleeve, and the cage-shaped parts are sequentially arranged along the length direction of the outer surface of the sliding sleeve. The linkage design of the locking mechanism and the compaction part realizes gradient pressure adjustment from top to bottom aiming at a suspension scene, the top locking mechanism synchronously increases the relative displacement quantity of the guide slat and the inclined plane and the deformation quantity of the compaction base due to the maximum bearing, the radial constraint force on the inner sliding sleeve is strongest, the gradient pressure adjustment gradually decreases from top to bottom along with the reduction of the bearing, and the excessive deformation of the top is avoided in a targeted manner. Meanwhile, the locking mechanism is distributed at intervals in a ring shape to be matched with the gap design of the supporting framework, so that the twisting force can be uniformly dispersed, and the twisting resistance stability in the cable laying and using processes is improved.

Inventors

  • ZHANG SHIJUN
  • XIANG XINGJU

Assignees

  • 惠州宏亚电子有限公司

Dates

Publication Date
20260512
Application Date
20260313

Claims (7)

  1. 1. A compression-resistant cable, comprising: A sliding sleeve (2); The cable comprises an embedded cable core (3), wherein the embedded cable core (3) has a stretching distance in an inner cavity of the sliding sleeve (2); The number of the cage-shaped parts (4) is multiple, the cage-shaped parts (4) are sequentially arranged along the length direction of the outer surface of the sliding sleeve (2), the cage-shaped parts (4) comprise two rubber sleeves (41), a plurality of strip-shaped structures arched outwards in the radial direction are arranged between the two rubber sleeves (41), an axial gap (45) is reserved between the strip-shaped structures, and the sliding sleeve further comprises a locking mechanism arranged on the radial inner side of the axial gap (45); The support framework (5), support framework (5) is including the claw form parcel part that the opposite direction set up, is provided with bridge plate (56) between the claw of two claw form parcel parts, and bridge plate (56) and two claw form parcel part are reserved and are had the clearance, wherein, claw form parcel part includes metal ring (51) and skeleton board (55), skeleton board (55) have a plurality ofly, and a plurality of skeleton boards (55) equidistance set up one side of metal ring (51) and the interval is provided with bridge plate (56) between skeleton board (55), are located on metal ring (51), and be located the position of skeleton board (55) is provided with stretching mouth (52), and locking mechanism runs through two in same direction stretching mouth (52); the outer layer package (1), the outer layer package (1) comprises a separation layer (11) and a fixed stretching layer (12), the separation layer (11) and the fixed stretching layer (12) are alternately arranged, the separation layer (11) is movably arranged at the outer arch part, the fixed stretching layer (12) is arranged between the two outer arch parts, and the middle part of the fixed stretching layer (12) is fixed on the surface of the cage part (4); the cable further comprises an end fixing mechanism (13), and the end fixing mechanism (13) is arranged at the end of the cable.
  2. 2. A pressure-resistant cable according to claim 1, characterized in that the release layer (11) comprises a fixed wrapping portion (111), the inner wall of the fixed wrapping portion (111) being provided with a follower plate (112); The fixed stretching layer (12) comprises a stretching part (121), and a fixed collar (122) fixed on the surface of the cage part (4) is arranged in the middle of the inner wall of the stretching part (121); the stretching part (121) is provided with an air pressure cavity which is communicated with the inner cavity of the fixed wrapping part (111).
  3. 3. The compression-resistant cable according to claim 1, wherein the end fixing mechanism (13) comprises a fixing ring (131), the fixing ring (131) is sleeved on the fixing stretching layer (12), an annular gap (132) is formed in the fixing ring (131), a plurality of through holes (134) are formed in both the fixing ring (131) and the sleeve ring (133), and the strands (135) in the fixing stretching layer (12) are inserted into the through holes (134) of the sleeve ring (133) after passing through the through holes (134) in the fixing ring (131), and the sleeve ring (133) is fixed in the annular gap (132).
  4. 4. A compression-resistant cable according to claim 3, wherein the strip-like structure comprises two vertical rubber portions (42), a bending portion (43) is arranged between the two vertical rubber portions (42), and a buckling groove (44) is arranged at the joint of the bending portion (43) and the vertical rubber portions (42).
  5. 5. The compression-resistant cable according to claim 4, wherein the locking mechanism comprises a locking strip (46), the locking strip (46) is arranged on the stretching opening (52) in a penetrating mode, the locking strip (46) comprises two guide strips (462), the two guide strips (462) are fixedly connected through an elastic stretching strap (461), a guide head (463) is fixedly connected to the other side of the guide strip (462), and a guide slat (464) is arranged at the position, facing the sliding sleeve (2), of the guide head (463).
  6. 6. The compression-resistant cable according to claim 5, further comprising a compacting section (47), wherein the compacting section (47) is fixedly connected to one side of the rubber sleeve (41), the compacting section (47) comprises a compacting base (471), a flaring groove (472) matched with the guide strip (464) is arranged at a position of the compacting base (471) close to the guide head (463), and the flaring groove (472) gradually lifts outwards to form an inclined surface (473) at a position of the guide strip (462).
  7. 7. The compression-resistant cable according to claim 6, wherein the supporting framework (5) further comprises a fixing platform (54), a wire mesh inner nest (57) is fixedly connected to one axial side of the fixing platform (54), a middle sleeve (58) is fixedly connected between the two fixing platforms (54), and the two middle sleeves (58) form a middle hollowed-out shape through a woven metal net (59).

Description

Compression-resistant cable Technical Field The invention relates to the technical field of cables, in particular to a compression-resistant cable. Background The cable is used as a core component for power and signal transmission, and is widely applied to overhead, suspension and other scenes. The existing suspension type cable has the following technical defects: the axial stress distribution is uneven, namely when the cable hangs from top to bottom, the top stress is far greater than the bottom, and the problems of excessive top tension, conductor damage and cable breakage are easy to occur. Disclosure of Invention In order to solve the technical problems, the invention provides a compression-resistant cable. The technical scheme of the invention is realized in such a way that the compression-resistant cable comprises: a sliding sleeve; the built-in cable core is provided with a stretching distance in the inner cavity of the sliding sleeve; The number of the cage-type parts is multiple, the cage-type parts are sequentially arranged along the length direction of the outer surface of the sliding sleeve, the cage-type parts comprise two rubber sleeves, a plurality of strip-shaped structures arched outwards in the radial direction are arranged between the two rubber sleeves, axial gaps are reserved between the strip-shaped structures, and the sliding sleeve further comprises a locking mechanism arranged on the radial inner side of the axial gaps; The support framework comprises claw-shaped wrapping parts which are oppositely arranged, a bridge plate is arranged between claw parts of the two claw-shaped wrapping parts, and gaps are reserved between the bridge plate and the two claw-shaped wrapping parts, wherein the claw-shaped wrapping parts comprise a plurality of metal rings and skeleton plates, the skeleton plates are equidistantly arranged on one side of the metal rings, the bridge plates are arranged between the skeleton plates at intervals and are positioned on the metal rings, stretching openings are formed in the positions of the skeleton plates, and a locking mechanism penetrates through the two stretching openings in the same direction; The outer layer package comprises release layers and fixed stretching layers, wherein the release layers and the fixed stretching layers are alternately arranged, the release layers are movably arranged on the outer arch parts, the fixed stretching layers are arranged between the two outer arch parts, and the middle part of the fixed stretching layers is fixed on the surface of the cage part; The cable also comprises an end fixing mechanism, wherein the end fixing mechanism is arranged at the end of the cable. Further, the release layer comprises a fixed wrapping part, and a following plate is arranged on the inner wall of the fixed wrapping part; The fixed stretching layer comprises a stretching part, and a fixed lantern ring fixed on the surface of the cage part is arranged in the middle of the inner wall of the stretching part; The stretching part is provided with an air pressure cavity which is communicated with the inner cavity of the fixed wrapping part. The outer layer wrapping section is designed into a separation layer and a fixed stretching layer, the fixed lantern rings are fixed on the surface of the cage part and fixed with the inner wall of the stretching part, so that the whole outer layer is wrapped to be discontinuously fixed on the middle layer made of the cage part and the supporting framework, and the structure between the two fixed lantern rings and the middle layer are in a relatively movable state; Under the action of axial tension, the outer layer is wrapped with the effect of stabilizing and uniformly stretching the distance, so that the outer layer is wrapped with uniformly deformed areas which are designed at intervals in the axial direction; In the deformation process, the stretching part is positioned in a stretching deformation area, internal air pressure enters the fixed wrapping part from the stretching part, so that the fixed wrapping part can enable the plurality of following plates to expand radially inwards and extrude the supporting framework, deformation pressure can be released inwards, and an internal resistance effect in the deformation process is formed through the support of the supporting framework, and the situation that the external outer layer wrapping cannot be partially excessively pulled in the deformation process is effectively achieved; In the whole cable suspending process, deformation force is uniformly dispersed from top to bottom in the height direction of the whole cable, compared with the advantages of the existing cable design, the existing continuous stress from top to bottom is gradually reduced, and therefore the higher the upward pressure is, the higher the degree of damage is, and the geometric level is also improved. Further, the end fixing mechanism comprises a fixing ring, the fixing ring is sleeved