CN111354511A

CN111354511A - Safety cable

Info

Publication number: CN111354511A
Application number: CN202010302101.XA
Authority: CN
Inventors: 徐立平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-06-30

Abstract

The invention discloses a safety cable which comprises a cable main body, wherein more than one section of expansion section is arranged on the cable main body, a solid node is formed between the expansion section and the expansion section, a core wire hole is formed in the middle of the solid node, a wiring channel is arranged in the cable main body, cable core wires penetrate through the core wire hole and are arranged in the cable main body, a sealed gas storage cavity is formed in each expansion section, the sealed gas storage cavity is inflated to enable the expansion section to expand, the outer diameter of the expanded expansion section is larger than that of the cable main body, a protection device is arranged on each solid node, and when the expansion section on one side of the protection device is damaged, the protection device is ejected out and covers the expansion section on the corresponding side. The cable disclosed by the invention not only has very compressive capacity, but also can be protected in time by the protection device when the cable has a safety problem, so that the damaged cable is covered, the effect of safety protection is achieved, the use safety of the cable is improved, and the service life of the cable is prolonged.

Description

Safety cable

Technical Field

The invention relates to the field of cables, in particular to a safety cable.

Background

The cable is laid in various fields, is frequently used, and requires very good strength, and when it is used, the cable may be cut, extruded, damaged, or spontaneously ignited, etc., so the cable requires very good structural strength to be able to cope with various problems that may occur. However, the existing cable generally comprises an outer protection layer and a cable core, and in order to solve the above problems, a structural design is generally performed on the outer protection layer, but in any design, many possible problems are difficult to solve, the service life of the cable is short, and many safety problems exist in the layout.

When the outer protective layer of the cable is damaged, if the outer protective layer is not maintained in time, external water vapor and dust enter the outer protective layer and slowly corrode, so that the inner core wire is corroded; and the cable is easy to age after long-term use, and is very easy to spontaneously combust after aging, so that a plurality of peripheral cables are burnt, and a fire disaster happens to the cable seriously, so that a plurality of safety problems exist in the use of the cable.

Disclosure of Invention

The invention aims to solve the technical problem of providing a safety cable, which can realize automatic sealing protection when a local problem occurs in the cable, better protect the cable, prolong the service life, avoid manual maintenance and solve a plurality of possible safety problems.

The invention is realized by the following technical scheme: the utility model provides a safety cable, includes the cable main part, is provided with the inflation section more than one section in the cable main part, forms a solid node between inflation section and the inflation section, has a core wire hole in the middle of the solid node, the inside wiring passageway that is provided with of cable main part, and the cable core passes the core wire hole and lays inside the cable main part, all form a sealed gas storage chamber in the inflation section, aerify and make the inflation section inflation sealed gas storage chamber, the inflation section external diameter after the inflation is greater than the external diameter of cable main part, all installs a protection device on every solid node, and after the inflation section damage of protection device one side, protection device ejecting and cover the inflation section that corresponds the side.

As preferred technical scheme, protection device includes a solid fixed ring and a loose ring, and gu fixed ring passes through glue bonding to be fixed in the cable main part outside, sets up a through-hole in the middle of the loose ring, and the cable main part passes the through-hole setting, and the loose ring is through the expanded section restriction of one side inflation it ejecting towards cable main part length direction.

According to a preferable technical scheme, one side, facing the movable ring, of the fixing ring is provided with an opening cavity, a sealing layer is arranged in the opening cavity in a filling mode, the sealing layer is arranged in the opening cavity in a compressed mode, one side face of the sealing layer is fixedly bonded with the bottom face of the opening cavity, the other side face of the sealing layer is fixedly bonded with the end face of one side of the movable ring, and a sealing cavity is formed in the middle of the sealing layer.

According to a preferable technical scheme, the cable main body in the opening cavity is sleeved with a spring, one end of the spring is in contact with the bottom surface of the opening cavity, the other end of the spring is in contact with the end face of the movable ring, the spring is compressed in the opening cavity through the movable ring, and the spring is located in the sealing cavity of the sealing layer.

Preferably, the inner wall of the through hole in the middle of the movable ring is in friction contact with the outer wall surface of the cable main body, so that an airtight sealing cavity is formed in the middle of the sealing layer.

As the preferred technical scheme, the sealing layer is made of a wrinkled rubber material, and a fireproof paint layer is coated on the inner surface and the outer surface of the sealing layer.

As a preferable technical scheme, the expansion sections are respectively provided with a one-way gas injection hole, and inert gas is filled into the expansion sections to expand the expansion sections.

As a preferred technical scheme, the movable ring and the fixed ring are circular, the outer diameter of the movable ring and the fixed ring is larger than that of the expanded expansion section, and the movable ring and the fixed ring are used as bottom supports of the cable main body.

The invention has the beneficial effects that: the cable disclosed by the invention utilizes the movable ring and the fixed ring to support the cable, so that the bottom of the cable is hollow, and the cable has very good compression resistance and shear resistance.

The inflatable expansion section is utilized to realize elastic buffering, so that the internal core wire is better protected.

And when the outer protective layer of cable is impaired, perhaps when other safety problems appear, can utilize protection device to cover corresponding position, reach the purpose of protection cable, need not the manual work and overhaul, increased the life of cable, prevent that the cable from catching fire, reach fine isolation leakproofness.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a diagram illustrating the protection device of the present invention in an un-ejected state;

fig. 3 is a schematic view of the protection device of the present invention in a use state after being ejected.

Detailed Description

As shown in figure 1, this safe cable, including cable body 1, be provided with the inflation section 4 more than one section on the cable body 1, form a solid node 6 between inflation section 4 and the inflation section 4, a core wire hole has in the middle of the solid node 6, cable body 1 is inside to be provided with wiring passageway 5, cable core 2 passes core wire hole and lays inside cable body 1, all form a sealed gas storage chamber 3 in the inflation section 4, aerify sealed gas storage chamber 3 and make the inflation section 4 inflation, the inflation section 4 external diameter after the inflation is greater than cable body 1's external diameter, all install a protection device on every solid node 6, after the inflation section damage of protection device one side, protection device ejecting and cover the inflation section 4 of corresponding side.

As shown in fig. 2, the protection device includes a fixing ring 8 and a movable ring 7, the fixing ring 8 is fixed outside the cable body 1 by gluing, a through hole (not shown) is arranged in the middle of the movable ring 7, the cable body 1 is arranged through the through hole, and the movable ring 7 is limited by the expansion section 4 with one side expanded to be ejected out towards the length direction of the cable body 1.

Wherein, the fixed ring 8 is provided with an opening cavity 12 towards the movable ring 7 one side, set up in the opening cavity 12 and pack and set up a sealing layer 11, sealing layer 11 is compressed and set up in opening cavity 12, one side is fixed with opening cavity 12 bottom surface bonding, the opposite side is fixed with movable ring 7 side end surface bonding, form a sealing cavity in the middle of the sealing layer 11, suit a spring 9 on the cable main part in opening cavity 12, spring 9 one end and opening cavity 12 bottom surface contact, the other end and movable ring 7 end surface contact, compress spring 9 in opening cavity 12 through movable ring 7, spring 9 is located the sealing cavity of sealing layer 11.

After the expansion section of the corresponding movable ring one side is damaged, the internal gas is sprayed out, the expansion section recovers deformation, the movable ring loses limiting force at the moment, the ejection can be realized under the action of the spring, after the spring recovers deformation, the sealing layer is pulled out through the movable ring and covers the external part of the cable expansion section, as shown in figure 3, the sealing layer is utilized to complete the covering of the cable expansion section at the moment, a sealing cavity is formed in the cable expansion section, external water vapor and dust cannot enter the cable expansion section, and the purpose of automatic maintenance and protection is achieved.

When the cable is broken due to spontaneous combustion, the gas in the expansion section is sprayed out and then is deformed, the cable which is subjected to spontaneous combustion is covered by the sealing layer, the closed space is used for preventing external air from entering, after the gas is not contained, flame is automatically extinguished, other cables are isolated, the flame is prevented from being transmitted to other cables, and the safety is improved.

Wherein, the through-hole inner wall in the middle of the activity ring 7 and the outer wall surface frictional contact of cable main part 1 for form an airtight sealed chamber in the middle of the sealing layer 11, ejecting through spring 9 with the activity ring, the activity ring must with the cable between sealing contact, prevent outside air's entering, can prevent the entering of steam and air like this, reach sealed protection's effect.

In this embodiment, the sealing layer 11 is made of a corrugated rubber material, and a fireproof paint layer is coated on the inner surface and the outer surface of the sealing layer, so that the fireproof effect of the sealing layer 11 is enhanced by the fireproof paint layer, and the sealing layer is prevented from being ignited by flame.

In this embodiment, the expansion section 4 is provided with a one-way gas injection hole (not shown), inert gas is injected into the expansion section to expand the expansion section, and if the spontaneous combustion phenomenon occurs, the flushed inert gas can dilute peripheral oxygen to achieve the purpose of fire extinguishing, and during normal use, the inflated expansion section is used for realizing elastic support and elastic buffering.

In this embodiment, activity ring 7 and solid fixed ring 8 all are circular, and its external diameter is greater than the external diameter after the inflation section inflation, through activity ring 7 and solid fixed ring 8 as the bottom sprag of cable main part, because the cable main part does not contact with bottom horizontal plane, consequently has certain deformability after the pressurized, reaches the purpose of elastic buffer, reduces the friction of cable main part and external.

The invention has the beneficial effects that: the cable disclosed by the invention utilizes the movable ring and the fixed ring to support the cable, so that the bottom of the cable is hollow, and the cable has very good compression resistance and shear resistance. The inflatable expansion section is utilized to realize elastic buffering, so that the internal core wire is better protected. And when the outer protective layer of cable is impaired, perhaps when other safety problems appear, can utilize protection device to cover corresponding position, reach the purpose of protection cable, need not the manual work and overhaul, increased the life of cable, prevent that the cable from catching fire, reach fine isolation leakproofness.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. A safety cable, characterized by: including the cable main part, be provided with the inflation section more than one section in the cable main part, form a solid node between inflation section and the inflation section, have a core wire hole in the middle of the solid node, the inside wiring passageway that is provided with of cable main part, the cable core passes the core wire hole and lays inside the cable main part, all form a sealed gas storage chamber in the inflation section, aerify and make the inflation section inflation sealed gas storage chamber, the inflation section external diameter after the inflation is greater than the external diameter of cable main part, all installs a protection device on every solid node, after the inflation section damage of protection device one side, protection device ejecting and cover the inflation section that corresponds the side.

2. The safety cable of claim 1, wherein: the protection device comprises a fixing ring and a movable ring, the fixing ring is fixed outside the cable main body through bonding of glue, a through hole is formed in the middle of the movable ring, the cable main body penetrates through the through hole, and the movable ring is limited to be ejected out towards the length direction of the cable main body through an expansion section expanded on one side.

3. The safety cable of claim 2, wherein: the fixed ring is provided with an opening cavity towards one side of the movable ring, a sealing layer is filled in the opening cavity, the sealing layer is compressed and arranged in the opening cavity, one side face of the sealing layer is fixedly bonded with the bottom face of the opening cavity, the other side face of the sealing layer is fixedly bonded with one side end face of the movable ring, and a sealing cavity is formed in the middle of the sealing layer.

4. The safety cable of claim 2, wherein: the cable main body in the opening cavity is sleeved with a spring, one end of the spring is in contact with the bottom surface of the opening cavity, the other end of the spring is in contact with the end face of the movable ring, the spring is compressed in the opening cavity through the movable ring, and the spring is located in the sealing cavity of the sealing layer.

5. The safety cable of claim 2, wherein: the inner wall of the through hole in the middle of the movable ring is in friction contact with the outer wall surface of the cable main body, so that an airtight sealing cavity is formed in the middle of the sealing layer.

6. The safety cable of claim 3, wherein: the sealing layer is made of wrinkled rubber materials, and a fireproof paint layer is coated on the inner surface and the outer surface of the sealing layer.

7. The safety cable of claim 1, wherein: and the expansion sections are provided with one-way gas injection holes, and inert gas is filled into the expansion sections to expand the expansion sections.

8. The safety cable of claim 2, wherein: the movable ring and the fixing ring are circular, the outer diameter of the movable ring is larger than that of the expansion section after expansion, and the movable ring and the fixing ring are used as bottom supports of the cable main body.