CN213781628U

CN213781628U - High-flame-retardant super-low-temperature-resistant environment-friendly flexible cable

Info

Publication number: CN213781628U
Application number: CN202022470292.9U
Authority: CN
Inventors: 陈志杰; 许遗志
Original assignee: Fujian Xinyiyuan Cable Co ltd
Current assignee: Fujian Xinyiyuan Cable Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-23
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a high flame-retardant super low temperature resistant environment-friendly flexible cable, which comprises a cable, wherein a protection pipe is arranged on the periphery of the cable, the protection pipe comprises an outer layer, a support steel ring, an inner layer and a connector, the inner side of the outer layer is fixedly connected with the outer side of the inner layer, a plurality of support steel rings are embedded at intervals between the inner side of the outer layer and the outer side of the inner layer and are fixedly connected, the connectors are arranged at two ends of the protection pipe, the connector is clamped and connected with a fixed pipe, the fixed pipe is divided into two symmetrical parts along the axial direction, the upper side and the lower side of the two ends of the fixed pipe are fixedly connected with connecting lugs, the protection pipe mainly comprises polyvinyl chloride without halogen elements, the high safety performances of low temperature resistance, softness, flame retardance, corrosion resistance and the like are provided, the plurality of support steel rings are embedded at intervals between the inner side of the outer layer and the outer side of the inner layer, the good support effect is achieved, the mechanical pressure damage is avoided, and the uneven flexibility is not influenced, the bending is convenient, and the cable laying device is suitable for cable laying in areas with complex environments.

Description

High-flame-retardant super-low-temperature-resistant environment-friendly flexible cable

Technical Field

The utility model relates to the technical field of mechanical equipment, specifically be a high fire-retardant super low temperature resistant environmental protection flexible cable.

Background

Cable: usually consisting of several or several groups of wires, wires and cables are used for transmitting electric (magnetic) energy, information and wire products for electromagnetic energy conversion. A wire cable in a broad sense, also referred to as a cable for short, refers to an insulated cable, which can be defined as: an aggregate consisting of; one or more insulated wire cores, and their respective possible coating layers, total protective layers and outer protective layers, the cable may also have additional uninsulated conductors, and the conductors are extruded (wound) with insulating layers, such as overhead insulated cables, or several-core twisted (corresponding to phase, neutral and ground wires of an electric power system), such as overhead insulated cables with more than two cores, or further added with a sheath layer, such as plastic/rubber-sheathed wire cables. The main process technologies include drawing, twisting, insulation extrusion (lapping), cabling, armor, sheath extrusion and the like, different process combinations of various products have certain differences, and a protective pipe is usually required to be sleeved on a cable of electrical equipment in an open-air area of a ship in order to avoid damage.

At present, in some open areas or areas with severe environment, steel pipes used for cables are used as protection pipes, wherein the steel pipes have high strength and good water tightness, can prevent the cables from being soaked in water and damaged mechanically, but are not easy to bend, and are not suitable for cable laying in areas with complex environment.

Therefore, a high flame retardant ultra-low temperature resistant environment-friendly flexible cable is proposed to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high fire-retardant super low temperature resistant environmental protection flexible cable to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high flame-retardant super-low temperature resistant environment-friendly flexible cable comprises a cable, wherein a protection pipe is arranged on the periphery of the cable, the protective tube comprises an outer layer, supporting steel rings, an inner layer and a connector, wherein the inner side of the outer layer is fixedly connected with the outer side of the inner layer, a plurality of supporting steel rings are embedded at intervals between the inner side of the outer layer and the outer side of the inner layer, and is fixedly connected, two ends of the protection tube are provided with connectors, the connectors are clamped and connected with the fixed tube, the fixed pipe is divided into two symmetrical parts along the axial direction, the upper side and the lower side of the two ends of the fixed pipe are fixedly connected with connecting lugs, the connecting lug is provided with a through hole, a bolt passes through the through hole, the bolt is connected with a nut in a threaded manner, the protective tube end is equipped with the sealing ring, the side clearance fit mounting groove all around of sealing ring, the mounting groove is seted up at fixed intraductal side, keeps away from the inboard radial dimension of fixed intraductal side of protective tube one end slightly is lighter than cable week side.

Preferably, the radial dimension of the cable is smaller than that of the inner side of the inner layer, and a gap between the inner side of the inner layer and the cable is a filling layer.

Preferably, the filling layer is filled with an insulating foaming agent.

Preferably, a limit protruding ring is arranged on the periphery of the connecting head.

Preferably, the seal ring is made of elastic insulating rubber, and the inner side is in clearance fit with the peripheral side of the cable.

Compared with the prior art, the beneficial effects of the utility model are that: the radial size of the cable is smaller than that of the inner side of the inner layer, so that the protection pipe can be conveniently moved to an open area where the cable passes or a section where the environment is severe, the installation and the use are convenient, the insulating foaming agent is filled in the filling layer, the fixing of the position of the protection pipe and the relative rotation of the inner side of the protection pipe are facilitated, meanwhile, the buffering, flame-retardant and low-temperature-resistant protection effects are enhanced, the two ends of the filling layer can be sealed through the sealing rings, the influence on water inflow of the filling layer is prevented, and the water tightness of the filling layer is enhanced;

the protection tube mainly comprises polyvinyl chloride without halogen elements, has excellent safety performances such as low temperature resistance, softness, flame retardance, corrosion resistance and the like, a plurality of supporting steel rings are inlaid at intervals between the inner side of the outer layer and the outer side of the inner layer, the good supporting effect is achieved, the mechanical pressure damage is avoided, the flexibility is not affected simultaneously, the bending is convenient, the cable laying device is suitable for the environment complex area, the radial size of the inner side of the fixed tube far away from one end of the protection tube is slightly smaller than the peripheral side of the cable, the peripheral side of the cable is convenient to clamp, the connection is more stable and firm

Drawings

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

fig. 2 is a schematic cross-sectional view of the middle protection tube of the present invention.

In the figure: 1. protecting the tube; 2. a cable; 3. a filling layer; 4. a fixed tube; 5. a seal ring; 11. an outer layer; 12. supporting a steel ring; 13. an inner layer; 14. a connector; 41. connecting lugs; 42. mounting grooves; 411. a through hole; 412. a bolt; 413. and a nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a high flame-retardant ultra-low temperature resistant environment-friendly flexible cable comprises a cable 2, a protection tube 1 is arranged on the periphery of the cable 2, the protection tube 1 comprises an outer layer 11, supporting steel rings 12, an inner layer 13 and a connector 14, the inner side of the outer layer 11 is fixedly connected with the outer side of the inner layer 13, a plurality of supporting steel rings 12 are embedded at intervals between the inner side of the outer layer 11 and the outer side of the inner layer 13, and fixed connection, connector 14 has been seted up at protection tube 1 both ends, connector 14 card and connection fixed tube 4, fixed tube 4 divide into the two parts of symmetry along the axial, side rigid coupling engaging lug 41 about fixed tube 4 both ends, the last through-hole 411 of having seted up of engaging lug 41, there is bolt 412 to pass through-hole 411 inboard, bolt 412 threaded connection nut 413, protection tube 1 end is equipped with sealing ring 5, sealing ring 5 week side clearance fit mounting groove 42, mounting groove 42 is seted up at fixed tube 4 inboard, the inboard radial dimension of fixed tube 4 of keeping away from protection tube 1 one end slightly is less than cable 2 week side.

The radial dimension of the cable 2 is smaller than that of the inner side of the inner layer 13, and a gap between the inner side of the inner layer 13 and the cable 2 is a filling layer 3.

The filling layer 3 is filled with an insulating foaming agent.

The periphery of the connector 14 is provided with a limit protruding ring.

The seal ring 5 is made of elastic insulating rubber, and the inner side thereof is in clearance fit with the peripheral side of the cable 2.

The working principle is as follows: the utility model discloses during the use, wear protection tube 1 in cable 2 week side at first, cable 2 radial dimension is less than the inboard radial dimension of inlayer 13, be convenient for move protection tube 1 to the open area of cable process or the harsher section of environment, after moving suitable position, pack in filling layer 3 and be filled with insulating foamer, be favorable to fixing protection tube 1 position and preventing its inboard relative rotation, strengthen simultaneously buffering, fire-retardant and low temperature resistant guard action, can seal filling layer 5 both ends through sealing ring 5, prevent that it from intaking from receiving the influence;

two parts of fixed pipe 4 dock in connector 14 week side to the spacing protruding ring of connector 14 week side is aligned in the chucking, and the inboard sealing ring 5 of mounting groove 42 chucking simultaneously passes through-hole 411 to bolt 412, fixes through the nut 413 of screwing, and the inboard radial dimension of fixed pipe 4 who keeps away from protection tube 1 one end simultaneously slightly is less than cable 2 week side, and the chucking cable 2 week side of being convenient for makes the connection more firm.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high fire-retardant super low temperature resistant environmental protection flexible cable, includes cable (2), its characterized in that: the utility model discloses a cable (2) week side is equipped with protection tube (1), protection tube (1) includes outer layer (11), supports steel ring (12), inlayer (13) and connector (14), the inboard fixed connection inlayer (13) outside of outer layer (11), outer layer (11) inboard is inlayed with inlayer (13) outside interval and is had a plurality of support steel ring (12), and fixed connection, connector (14) have been seted up at protection tube (1) both ends, connector (14) card and connection fixed pipe (4), fixed pipe (4) divide into symmetrical two parts along the axial, side rigid coupling engaging lug (41) about fixed pipe (4) both ends, through-hole (411) have been seted up on engaging lug (41), through-hole (411) inboard has bolt (412) to pass, bolt (412) threaded connection nut (413), protection tube (1) end is equipped with sealing ring (5), sealing ring (5) week side clearance fit mounting groove (42), mounting groove (42) are seted up and are being fixed pipe (4) inboard, keep away from fixed pipe (4) inboard radial dimension of protection tube (1) one end slightly is lighter than cable (2) week side.

2. The environment-friendly flexible cable with high flame retardance and super low temperature resistance as claimed in claim 1, wherein: the radial dimension of the cable (2) is smaller than that of the inner side of the inner layer (13), and a gap between the inner side of the inner layer (13) and the cable (2) is a filling layer (3).

3. The environment-friendly flexible cable with high flame retardance and super low temperature resistance as claimed in claim 2, wherein: and the filling layer (3) is filled with an insulating foaming agent.

4. The environment-friendly flexible cable with high flame retardance and super low temperature resistance as claimed in claim 1, wherein: the periphery of the connector (14) is provided with a limiting protruding ring.

5. The environment-friendly flexible cable with high flame retardance and super low temperature resistance as claimed in claim 1, wherein: the sealing ring (5) is made of elastic insulating rubber, and the inner side of the sealing ring is in clearance fit with the peripheral side of the cable (2).