CN220895226U - Compression-resistant fireproof cable - Google Patents
Compression-resistant fireproof cable Download PDFInfo
- Publication number
- CN220895226U CN220895226U CN202322735232.9U CN202322735232U CN220895226U CN 220895226 U CN220895226 U CN 220895226U CN 202322735232 U CN202322735232 U CN 202322735232U CN 220895226 U CN220895226 U CN 220895226U
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- Prior art keywords
- layer
- resistant
- support
- buffer layer
- compression
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- 238000007906 compression Methods 0.000 title claims abstract description 68
- 230000006835 compression Effects 0.000 title claims abstract description 61
- 230000008093 supporting effect Effects 0.000 claims abstract description 47
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 229920001971 elastomer Polymers 0.000 claims description 8
- 230000009970 fire resistant effect Effects 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 129
- 230000000694 effects Effects 0.000 description 15
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
The utility model relates to the technical field of cables, in particular to a compression-resistant fireproof cable, which comprises a cable core, wherein an insulating layer is wrapped outside the cable core, a support is sleeved outside the insulating layer, a first buffer layer and a second buffer layer are arranged on two opposite sides of the support, which are positioned on the insulating layer, the first buffer layer and the second buffer layer are connected to the support in a clamping manner, a wrapping layer is sleeved outside the support, and a heat insulation layer, a shielding layer, an armor layer and a fireproof wear-resistant layer are sleeved outside the wrapping layer respectively; the first buffer layer is flat, is equipped with first supporting layer on the first buffer layer upper plane, the second buffer layer is the arcuation, is equipped with the second supporting layer on the cambered surface of second buffer layer, be equipped with the resistance to compression cavity on the support between first buffer layer and the second buffer layer, resistance to compression cavity symmetry sets up on the support and inwards sets up from the support side, resistance to compression cavity lateral wall is equipped with the tapering, and resistance to compression cavity interpolation is pulled out and is connected with the supporting shoe, and the lateral wall of supporting shoe closely laminates on the lateral wall of resistance to compression cavity.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a compression-resistant fireproof cable.
Background
The power cable is the cable product that is arranged in the main line of electric power system to transmit and distribute high-power electric energy, and the cable on the market is various, and according to their application scope, the type of cable is also various, generally by fire prevention type cable, resistance to compression type cable, wear-resisting type cable etc. wherein the resistance to compression type electric wire and cable, including cable core and the cable core support that is used for fixed cable core, the cable core support outside is provided with multiple restrictive coating, and when electric wire receives external force extrusion, multiple restrictive coating can play elasticity resistance to compression to this avoids the inside damage that appears of electric wire and cable, has effectively guaranteed wire and cable's result of use and life. However, because gaps exist in the cable core support and the distances between the gaps and the sheath layers are too close, the elastic compression-resistant effect of the sheath layers is not ideal, the sheath layers are easy to be extruded into the gaps of the cable core support under the action of pressure, and then the cable is deformed, and the service stability and the service life of the cable are seriously influenced.
For solving the technical problem, chinese patent CN218299428U discloses a waterproof withstand voltage cable, including a plurality of cable core units, the insulating layer, the waterproof layer, buffer layer and armor, the buffer layer includes a plurality of protruding strips of elastic rubber, be formed with the cushion chamber between two adjacent protruding strips of elastic rubber, every cable core unit includes the cable core, the inner insulating layer, interior sheath and pressure-resistant piece, pressure-resistant piece's cross-section is circular structure, pressure-resistant piece evenly is provided with a plurality of bulge along circular structure's circumference, be formed with first cavity between two adjacent bulge, be formed with the second cavity between bulge and the interior sheath, be provided with support piece in the second cavity, support piece's cross-section is the V type, support piece's tip is connected with pressure-resistant piece, support piece's top is connected with interior sheath. The pressure-resistant member is arranged outside the inner protective layer, so that the pressure resistance of the cable can be increased, but a plurality of buffer cavities are formed between the inner protective layer and the cable is still easy to deform under the action of pressure.
Therefore, the compression-resistant fireproof cable is provided, the contact distance between the cavity inside the cable and the outer sheath layer is reduced, so that the elastic compression-resistant effect is improved, meanwhile, the hard compression resistance of the cable core support is improved, and the service stability and the service life of the cable are comprehensively improved.
Disclosure of utility model
The utility model aims to provide a compression-resistant fireproof cable, which solves the technical problems that in the prior art, the cable is easy to deform under the action of strong pressure and the service stability and the service life of the cable are affected due to the fact that the elastic compression-resistant effect and the hard compression-resistant effect of the cable are not ideal.
The technical scheme adopted for solving the technical problems is as follows: the compression-resistant fireproof cable comprises a cable core, wherein an insulating layer is wrapped outside the cable core, a support is sleeved outside the insulating layer, a first buffer layer and a second buffer layer are arranged on two opposite sides of the insulating layer on the support, the first buffer layer and the second buffer layer are connected to the support in a clamping manner, a wrapping layer is sleeved outside the support, and a heat insulation layer, a shielding layer, an armor layer and a fireproof wear-resistant layer are sleeved outside the wrapping layer respectively; the first buffer layer is flat, is equipped with first supporting layer on the first buffer layer upper plane, the second buffer layer is the arcuation, is equipped with the second supporting layer on the cambered surface of second buffer layer, be equipped with the resistance to compression cavity on the support between first buffer layer and the second buffer layer, resistance to compression cavity symmetry sets up on the support and inwards sets up from the support side, resistance to compression cavity lateral wall is equipped with the tapering, and resistance to compression cavity interpolation is pulled out and is connected with the supporting shoe, and the lateral wall of supporting shoe closely laminates on the lateral wall of resistance to compression cavity.
Further, the first supporting layer and the first buffer layer are fixedly connected into a whole; the first buffer layer is made of rubber, and the first support layer is made of thermosetting plastic.
Further, the second supporting layer and the second buffer layer are fixedly connected into a whole; the second buffer layer is made of rubber, and the second supporting layer is made of nylon plastic.
Further, the second support layer has a lower hardness than the first support layer.
Further, the side wall of the supporting block is provided with a taper, and the taper of the side wall of the supporting block is consistent with that of the side wall of the compression-resistant cavity.
Further, the first buffer layer and the second buffer layer are provided with clamping strips, the support is provided with a plurality of mounting grooves, and the clamping strips are connected in the mounting grooves in a matched mode.
Further, the wrapping layer wraps the first supporting layer, the second supporting layer and the supporting block outside the support.
Further, the fireproof and wear-resistant layer is made of low-smoke halogen-free polyolefin.
Further, the thermal insulation layer, the shielding layer, the armor layer and the fireproof wear-resistant layer are coaxially arranged.
The beneficial effects of the utility model are as follows: the soft and hard combined mode is adopted to enable the support to have various compression resistance effects, and the softer first buffer layer and the softer second buffer layer are adhered to the harder first support layer and the harder second support layer, so that the support effect of the support is improved, and meanwhile, the buffer effect is improved; the compression-resistant cavity is formed between the first buffer layer and the second buffer layer on the support, when pressure is applied to the supporting block, the supporting block can move towards the bottom wall of the compression-resistant cavity and press the side wall of the compression-resistant cavity, and the reverse acting force applied by the side wall of the compression-resistant cavity enables the supporting block to have extremely high compression-resistant effect and buffering performance, so that the compression-resistant performance of the support is improved.
Drawings
Fig. 1 is a cross-sectional view of the pressure-resistant fireproof cable of the present utility model.
The components in the drawings are marked as follows: 10. a cable core; 11. an insulating layer; 15. wrapping the layer; 16. a thermal insulation layer; 17. a shielding layer; 18. a compression-resistant layer; 19. a fireproof wear-resistant layer; 20. a bracket; 21. a first buffer layer; 22. a first support layer; 23. a second buffer layer; 24. a second support layer; 25. a compression-resistant cavity; 26. and a supporting block.
Detailed Description
The present utility model will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the utility model only by way of illustration, and therefore it shows only the constitution related to the utility model.
Referring to fig. 1, the present utility model provides a compression-resistant fireproof cable, which comprises a cable core 10, wherein the cable core 10 is made of copper wires by twisting, an insulating layer 11 is wrapped outside the cable core 10 which is twisted into a whole, and the insulating layer 11 is made of polyethylene.
Further, a support 20 is sleeved outside the insulating layer 11, a first buffer layer 21 and a second buffer layer 23 are arranged on two opposite sides of the support 20, which are located on the insulating layer 11, and the first buffer layer 21 and the second buffer layer 23 are connected to the support 20 in a clamping manner. Preferably, the bracket 20 is made of an elastic plastic.
Specifically, the first buffer layer 21 and the second buffer layer 23 are provided with clamping strips (not shown), the bracket 20 is provided with a plurality of mounting grooves (not shown), and the clamping strips are connected in the mounting grooves in a matching manner. During processing, the first buffer layer 21 and the second buffer layer 23 are clamped and mounted on the bracket 20 in a pressing mode. The bracket 20 having a certain elasticity can also improve the installation efficiency while ensuring the supporting effect.
The first buffer layer 21 is flat, a first supporting layer 22 is arranged on the upper plane of the first buffer layer 21, and the first supporting layer 22 is fixedly connected with the first buffer layer 21 into a whole by using adhesive. Preferably, the first buffer layer 21 is made of rubber, and the first support layer 22 is made of thermosetting plastic.
The second buffer layer 23 is arc-shaped, a second supporting layer 24 is arranged on the arc surface of the second buffer layer 23, and the second supporting layer 24 is fixedly connected with the second buffer layer 23 into a whole by using adhesive. Preferably, the second buffer layer 23 is made of rubber. The second support layer 24 is made of nylon plastic. The second support layer 24 has a lower hardness than the first support layer 22.
In this embodiment, the adhesive is polyurethane glue, the first support layer 22 and the second support layer 24 are adhered to the first buffer layer 21 and the second buffer layer 23 respectively by using the adhesive, and then the first buffer layer 21 and the second buffer layer 23 are connected to the bracket 20 in a clamping manner. The utility model utilizes the hardness of the first supporting layer 22 to be higher than that of the second supporting layer 24 to realize the compression resistance of different hardness combinations, so that the bracket 20 has various compression resistance effects such as supporting, buffering, rebound and the like, and the compression resistance of the utility model is effectively improved.
Further, a compression-resistant cavity 25 is disposed between the first buffer layer 21 and the second buffer layer 23 on the support 20, and the compression-resistant cavity 25 is symmetrically disposed on the support 20 and is opened inward from the side surface of the support 20. The side wall of the compression-resistant cavity 25 is provided with a taper, and a supporting block 26 is inserted and pulled into the compression-resistant cavity 25. The side wall of the supporting block 26 is provided with a taper, the taper of the side wall of the supporting block 26 is consistent with that of the side wall of the compression-resistant cavity 25, and the side wall of the supporting block 26 is tightly attached to the side wall of the compression-resistant cavity 25.
When the anti-compression device is used, pressure is applied to the supporting block 26, the supporting block 26 moves towards the bottom wall of the anti-compression cavity 25 and presses the side wall of the anti-compression cavity 25, and the reverse acting force applied by the side wall of the anti-compression cavity 25 enables the supporting block 26 to have extremely high anti-compression effect and buffering performance, so that the anti-compression performance of the anti-compression device is improved.
Further, a wrapping layer 15 is sleeved outside the support 20, and a heat insulation layer 16, a shielding layer 17, an armor layer 18 and a fireproof wear-resistant layer 19 are sleeved outside the wrapping layer 15.
Specifically, the wrapping layer 15 is wrapped outside the support 20 by using a wrapping wire, and the first support layer 22, the second support layer 24 and the support block 26 are wrapped together, so that the roundness is ensured, and the wrapping is completed.
The shielding layer 17 is made of tin-plated copper; the armor layer 18 is made of steel sheets, and the fireproof and wear-resistant layer 19 is formed by extruding and wrapping low-smoke halogen-free polyolefin. Preferably, the thermal insulation layer 16, the shielding layer 17, the armor layer 18 and the fire-resistant and wear-resistant layer 19 are coaxially arranged.
When in use, the armor layer 18 and the fireproof wear-resistant layer 19 are matched, so that the utility model has better compression resistance, impact resistance, fireproof and wear-resistant effects and improves the use convenience. Meanwhile, the fireproof wear-resistant layer 19 is a low-smoke halogen-free polyolefin protective sleeve, so that harmful gases generated by combustion are prevented, and the environmental protection level of the utility model is improved.
The utility model adopts a mode of combining materials with different hardness to ensure that the bracket 20 has various compression resistance effects, and the softer first buffer layer 21 and the softer second buffer layer 23 are adhered to the harder first support layer 22 and the harder second support layer 24, so that the support effect of the bracket 20 is improved and the buffer effect is also improved; the support 20 is provided with the compression-resistant cavity 25 between the first buffer layer 21 and the second buffer layer 23, when pressure is applied to the support block 26, the support block 26 moves towards the bottom wall of the compression-resistant cavity 25 and presses the side wall of the compression-resistant cavity 25, and the reverse acting force applied by the side wall of the compression-resistant cavity 25 enables the support block 26 to have extremely high compression-resistant effect and buffer performance, so that the compression-resistant performance of the utility model is improved.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (9)
1. The compression-resistant fireproof cable is characterized by comprising a cable core (10), wherein an insulating layer (11) is wrapped outside the cable core (10), a support (20) is sleeved outside the insulating layer (11), a first buffer layer (21) and a second buffer layer (23) are arranged on two opposite sides of the support (20) and located on the insulating layer (11), the first buffer layer (21) and the second buffer layer (23) are connected on the support (20) in a clamping manner, a wrapping layer (15) is sleeved outside the support (20), and a heat insulation layer (16), a shielding layer (17), an armor layer (18) and a fireproof wear-resistant layer (19) are sleeved outside the wrapping layer (15) respectively;
the utility model discloses a compression-resistant buffer structure, including support (25), compression-resistant cavity (25), support (20) and supporting shoe (26), first buffer layer (21) is the platykurtic, is equipped with first supporting layer (22) on the plane on first buffer layer (21), second buffer layer (23) are equipped with second supporting layer (24) on the cambered surface of second buffer layer (23), be equipped with compression-resistant cavity (25) on support (20) between first buffer layer (21) and second buffer layer (23), compression-resistant cavity (25) symmetry sets up on support (20) and inwards offer from support (20) side, compression-resistant cavity (25) lateral wall is equipped with the tapering, and the interpolation of compression-resistant cavity (25) is pulled out and is connected with supporting shoe (26), and the lateral wall of supporting shoe (26) is closely laminated on the lateral wall of compression-resistant cavity (25).
2. The pressure-resistant fireproof cable according to claim 1, characterized in that the first supporting layer (22) is fixedly connected with the first buffer layer (21) as a whole; the first buffer layer (21) is made of rubber, and the first support layer (22) is made of thermosetting plastic.
3. The pressure-resistant fireproof cable according to claim 2, characterized in that the second supporting layer (24) is fixedly connected with the second buffer layer (23) as a whole; the second buffer layer (23) is made of rubber, and the second support layer (24) is made of nylon plastic.
4. A pressure-resistant fireproof cable according to claim 3, characterized in that the second support layer (24) has a lower hardness than the first support layer (22).
5. The pressure-resistant fireproof cable according to claim 1, wherein the side walls of the supporting blocks (26) are provided with a taper, the taper of the side walls of the supporting blocks (26) being consistent with the taper of the side walls of the pressure-resistant cavities (25).
6. The pressure-resistant fireproof cable according to claim 1, wherein the first buffer layer (21) and the second buffer layer (23) are provided with clamping strips, the bracket (20) is provided with a plurality of mounting grooves, and the clamping strips are connected in the mounting grooves in a matching manner.
7. The pressure-resistant and fire-resistant cable according to claim 1, characterized in that the wrapping layer (15) is wound on the outside of the bracket (20), and the wrapping layer (15) is wrapped with the first supporting layer (22), the second supporting layer (24) and the supporting block (26).
8. The pressure-resistant and fire-resistant cable according to claim 1, characterized in that the fire-resistant and wear-resistant layer (19) is made of a low-smoke halogen-free polyolefin.
9. The pressure-resistant and fire-resistant cable according to claim 1, characterized in that the thermal insulation layer (16), the shielding layer (17), the armouring layer (18) and the fire-resistant and wear-resistant layer (19) are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322735232.9U CN220895226U (en) | 2023-10-12 | 2023-10-12 | Compression-resistant fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322735232.9U CN220895226U (en) | 2023-10-12 | 2023-10-12 | Compression-resistant fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220895226U true CN220895226U (en) | 2024-05-03 |
Family
ID=90876353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322735232.9U Active CN220895226U (en) | 2023-10-12 | 2023-10-12 | Compression-resistant fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220895226U (en) |
-
2023
- 2023-10-12 CN CN202322735232.9U patent/CN220895226U/en active Active
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