CN218299428U

CN218299428U - Waterproof pressure-resistant cable

Info

Publication number: CN218299428U
Application number: CN202222210403.1U
Authority: CN
Inventors: 蒋燕; 蒋小松
Original assignee: Wuxi Mingtao Cable Technology Co ltd
Current assignee: Wuxi Mingtao Cable Technology Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-01-13
Anticipated expiration: 2032-08-22

Abstract

The utility model discloses a waterproof withstand voltage cable, it includes a plurality of cable core units, the insulating layer, the waterproof layer, buffer layer and armor, the buffer layer includes a plurality of elastic rubber protruding strips, be formed with the cushion chamber between two adjacent elastic rubber protruding strips, every cable core unit includes the cable core, the internal insulation layer, interior sheath and pressure resistance, the cross-section of pressure resistance is circular structure, the pressure resistance evenly is provided with a plurality of bulges along circular structure's circumference, be formed with first cavity between two adjacent bulges, 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 the pressure resistance, support piece's top is connected with interior sheath. The outside of sheath including setting up pressure resistance to can increase the compressive property of cable, simultaneously, support piece's cross-section is the V type, plays the effect of buffer pressure through warping, further increases the compressive capacity of cable, and then the protection cable core.

Description

Waterproof pressure-resistant cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a waterproof withstand voltage cable.

Background

With the rapid development of national economy, cables are widely applied in different environments. At present, the environment in which underground cables are used is relatively harsh, and is generally affected by the humid environment and various pressures inside the underground, which requires that the cables have good compression resistance and waterproof performance, for example, patent with publication number CN216793358U discloses a waterproof and moistureproof cable, under the elastic buffer of the buffer layer, the elastic rubber protruding strips can divide the buffer layer into a plurality of buffer cavities, but only rely on the cooperation of the elastic rubber protruding strips and the buffer cavities to resist the external pressure, the compression resistance of the cable is weak, and further the cable core is easily damaged.

SUMMERY OF THE UTILITY MODEL

Therefore, a waterproof and pressure-resistant cable with high pressure resistance is needed.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a waterproof pressure-resistant cable, waterproof pressure-resistant cable includes a plurality of cable core units, the parcel is in insulating layer outside the cable core unit, parcel are in waterproof layer outside the insulating layer, setting are in buffer layer outside the waterproof layer and parcel are in the armor outside the buffer layer, be equipped with a plurality of elastic rubber protruding strip in the buffer layer, adjacent two be formed with the cushion chamber between the elastic rubber protruding strip, every cable core unit includes the cable core, wraps up the cable core outside the inner insulating layer, sets up the outside inner sheath of inner insulation layer and sets up the outside pressure resistance of inner sheath, the cross-section of pressure resistance is circular structure, the pressure resistance evenly is provided with a plurality of bulges along circular structure's circumference, adjacent two be formed with first cavity between the bulge, the bulge with be formed with the second cavity between the inner sheath, be provided with support piece in the second cavity, support piece's cross-section is the V type, support piece's tip with the pressure resistance is connected, support piece's top with the inner sheath is connected.

Further, the cable core unit further comprises an inner waterproof layer, the inner waterproof layer is wrapped outside the insulating layer, and the inner protection layer is wrapped outside the inner waterproof layer.

Furthermore, the outside of armor still is provided with shielding layer, flame retardant coating and outer jacket, the shielding layer parcel is in the outside of armor, the flame retardant coating parcel is in the outside of shielding layer, the outer jacket parcel is in the outside of flame retardant coating.

Further, the thickness of outer jacket is 6mm.

Furthermore, a water blocking material is filled between the insulating layer and the pressure-resistant piece.

Further, the pressure-resistant member and the support member are both made of rubber materials.

Further, the waterproof layer is formed by wrapping a water-blocking tape.

Further, the inner waterproof layer is made of an aluminum-plastic composite material.

The beneficial effects of the utility model are that: the utility model provides a waterproof pressure-resistant cable, the outside of sheath including setting up the resistance to pressure welding, thereby can increase the compressive property of cable, and simultaneously, be formed with the second cavity between bulge and the interior sheath, support piece sets up in the second cavity, support piece's cross-section is the V type, support piece's tip is connected with the resistance to pressure, support piece's top is connected with interior sheath, on the one hand can strengthen the stability of being connected between interior sheath and the resistance to pressure, on the other hand can keep away from the one end of interior sheath to the resistance to pressure and play the effect of support, and can play the effect of slow-down pressure through warping, thereby can further increase the compressive capacity of cable, and then can protect the cable core.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural view of a waterproof and pressure-resistant cable of the present invention;

fig. 2 is a schematic structural view of a core unit in the waterproof and pressure-resistant cable shown in fig. 1.

The names and numbers of the parts in the figure are respectively as follows:

cable core unit 1, insulating layer 2 and waterproof layer 3

Buffer layer 4 armor layer 5 elastic rubber convex strip 41

Insulating layer 12 in buffer cavity 42 cable core 11

Inner waterproof layer 13 and inner protective layer 14 pressure-resistant piece 15

Support 16 cavity 150 shield 6

Fire-proof layer 7, outer protective layer 8 and water-blocking material 20

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

Please refer to fig. 1 and fig. 2, the utility model provides a waterproof pressure-resistant cable, it includes cable core unit 1, insulating layer 2, waterproof layer 3, buffer layer 4 and armor 5, cable core unit 1 has a plurality ofly, insulating layer 2 wraps up in the outside of a plurality of cable core units 1, waterproof layer 3 wraps up in the outside of insulating layer 2, buffer layer 4 sets up the outside at waterproof layer 3, buffer layer 4 includes a plurality of elastic rubber protruding strips 41, a plurality of elastic rubber protruding strips 41 evenly set up the outside at waterproof layer 3, and be formed with cushion chamber 42 between two adjacent elastic rubber protruding strips 41, armor 5 wraps up in the outside of buffer layer 4. Through the cooperation of the elastic rubber protruding strips 41 and the buffer cavity 42, when the cable receives external pressure, the elastic rubber protruding strips 41 can bear a part of pressure, and the buffer cavity 42 plays a role in buffering the pressure. In this embodiment, the waterproof layer 3 is formed by wrapping a water-blocking tape.

Each cable core unit 1 comprises a cable core 11, an inner insulating layer 12, an inner waterproof layer 13, an inner protective layer 14, a pressure-resistant piece 15 and a supporting piece 16, wherein the inner insulating layer 12 is wrapped outside the cable core 11, and the inner waterproof layer 13 is wrapped outside the inner insulating layer 12. Waterproof layer 13's outside including interior sheath 14 parcel, sheath 14's outside including pressure resistance 15 sets up, and pressure resistance 15's cross-section is circular structure, pressure resistance 15 evenly is provided with a plurality of bulges 151 along circular structure's circumference, is formed with first cavity 152 between two adjacent bulges 151 to can increase the compressive property of cable. Further, be formed with second cavity 150 between bulge 151 and the interior sheath 14, support piece 16 sets up in second cavity 150, support piece 16's cross-section is the V type, support piece 16's tip is connected with pressure resistance 15, support piece 16's top is connected with interior sheath 14, set up support piece 16, on the one hand can strengthen the stability of being connected between interior sheath 14 and the pressure resistance 15, on the other hand can play the effect of support to pressure resistance 15 one end of keeping away from interior sheath 14, and can play the effect of slow-pressing pressure through the deformation, thereby can further increase the compressive capacity of cable, and then can protect cable core 11. In the present embodiment, the pressure member 15 and the support member 16 are made of rubber materials.

Further, the outside of armor 5 still is provided with shielding layer 6, flame retardant coating 7 and outer jacket 8, and shielding layer 6 parcel is in the outside of armor 5, and shielding layer 6 is woven by the aluminum alloy silk and is formed. The fire-proof layer 7 wraps the outside of the shielding layer 6, and in the embodiment, the fire-proof layer 7 is made of low-smoke halogen-free crosslinked polyethylene, so that the cable has fireproof performance, the smoke discharge amount of the low-smoke halogen-free crosslinked polyethylene is low when the cable is heated, and the influence on the environment is avoided. The outer jacket 8 wraps the fire-proof layer 7, and the outer jacket 8 is made of polyethylene materials and has good wear resistance, electrical insulation, toughness and cold resistance. Further, the outer sheath 8 has a thickness of 6mm.

Further, a water blocking material 20 is filled between the insulating layer 2 and the pressure-resistant member 15, and the water blocking material 20 is arranged, so that the insulating layer 2 and the pressure-resistant member 15 can be protected on the one hand, and a waterproof effect can be achieved on the other hand.

The utility model provides a waterproof pressure-resistant cable, the outside of sheath 14 including setting up pressure resistance 15 welding, thereby can increase the compressive property of cable, and simultaneously, be formed with second cavity 150 between bulge 151 and the interior sheath 14, support piece 16 sets up in second cavity 150, support piece 16's cross-section is the V type, support piece 16's tip is connected with pressure resistance 15, support piece 16's top is connected with interior sheath 14, on the one hand can strengthen the stability of being connected between sheath 14 and the pressure resistance 15, on the other hand can play the effect of support to pressure resistance 15 one end of keeping away from interior sheath 14, and can play the effect of slow-pressing power through the deformation, thereby can further increase the compressive property of cable, and then can protect cable core 11.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a waterproof withstand voltage cable which characterized in that: the waterproof pressure-resistant cable comprises a plurality of cable core units, insulating layers wrapped outside the cable core units, buffer layers wrapped outside the insulating layers, buffer layers arranged outside the waterproof layers and armor layers wrapped outside the buffer layers, wherein the buffer layers comprise a plurality of elastic rubber protruding strips, buffer cavities are formed between every two adjacent elastic rubber protruding strips, each cable core unit comprises a cable core, an inner insulating layer wrapped outside the cable core, an inner protection layer arranged outside the inner insulating layer and a pressure-resistant piece arranged outside the inner protection layer, the cross section of the pressure-resistant piece is of a circular structure, a plurality of bulges are uniformly arranged on the pressure-resistant piece along the circumferential direction of the circular structure, a first cavity is formed between every two adjacent bulges, a second cavity is formed between each bulge and the inner protection layer, a support piece is arranged in each second cavity, the cross section of each support piece is of a V shape, the end part of each support piece is connected with the pressure-resistant piece, and the top of each support piece is connected with the inner protection layer.

2. The waterproof pressure-resistant cable according to claim 1, wherein: the cable core unit further comprises an inner waterproof layer, the inner waterproof layer is wrapped outside the insulating layer, and the inner protective layer is wrapped outside the inner waterproof layer.

3. The waterproof pressure-resistant cable according to claim 1, wherein: the shielding layer wraps the outside of the armor layer, the fireproof layer wraps the outside of the shielding layer, and the outer protective layer wraps the outside of the fireproof layer.

4. A waterproof pressure-resistant cable according to claim 3, wherein: the thickness of outer jacket is 6mm.

5. A waterproof pressure-resistant cable according to claim 3, wherein: and a water blocking material is filled between the insulating layer and the pressure-resistant piece.

6. The waterproof pressure-resistant cable according to claim 1, wherein: the pressure-resistant piece and the supporting piece are both made of rubber materials.

7. The waterproof pressure-resistant cable according to claim 1, wherein: the waterproof layer is formed by wrapping a waterproof tape.

8. The waterproof pressure-resistant cable according to claim 2, wherein: the inner waterproof layer is made of aluminum-plastic composite materials.