CN110165627B

CN110165627B - Resistance to compression cable

Info

Publication number: CN110165627B
Application number: CN201910537545.9A
Authority: CN
Inventors: 夏纪成
Original assignee: Guangdong Jiangnan Cable Industry Co Ltd
Current assignee: Guangdong Jiangnan Cable Industry Co., Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-07-14
Anticipated expiration: 2039-06-20
Also published as: CN110165627A

Abstract

The invention discloses a compression-resistant cable which comprises more than one cable core wire and an intermediate wire, wherein the intermediate wire is positioned at the top of the cable core wire, the intermediate wire is positioned between the cable core wires at the bottom, the intermediate wire comprises an outer tegument, a filling cavity is arranged in the middle of the outer tegument, more than one sealing part is arranged in the filling cavity along the length direction of the outer tegument, the sealing part divides the filling cavity into a plurality of independent cavities, media are filled in each independent cavity, and each cable core wire is connected and communicated with the filling cavity in the intermediate wire through more than one independent inflatable telescopic component. When the cable is used, the middle line at the top can be used for well protecting the cable core wire at the bottom, the condition that the top of the cable is pressed can be effectively prevented, and the medium can be used for ejecting the cable core wire in the pressing process, so that the cable core wire is far away from a pressed source, and the cable core wire is prevented from being cut.

Description

Resistance to compression cable

Technical Field

The invention relates to a cable, in particular to a compression-resistant cable.

Background

After the installation of cable, because cable core wire length is long, often meet the condition of cuting the pressurized, but because the cable generally includes outside protective layer and inside transmission core wire, in case receive the cuting or extrude, can lead to the damage of inside transmission core wire, lead to the whole communication interrupt of cable, the cable directly faces the source of cuting the extrusion, so can directly lead to the damage of the inside core wire of cable, even strengthen the outside protective layer of core wire at present, also can not protect inside core wire completely.

Disclosure of Invention

The invention aims to solve the technical problem of providing a compression-resistant cable, which can well protect a cable core wire at the bottom by arranging an intermediate wire, and can enable the core wire to be ejected out to be far away from an intermediate shearing source after being subjected to extreme extrusion shearing.

The invention is realized by the following technical scheme: the utility model provides a resistance to compression cable, includes cable conductor and an intermediate line that is greater than one strand, and the intermediate line is located the top of cable conductor, and the intermediate line is located between each cable conductor of bottom, the intermediate line includes a tegument, has a packing chamber in the middle of the tegument, is provided with more than one sealing in the packing chamber along tegument length direction, and a plurality of independent cavities are cut apart into with a packing chamber to the sealing, all fills the medium in every independent cavity, and each cable conductor all is connected with the inside packing chamber of intermediate line through the flexible subassembly of aerifing more than one independently and switches on, is greater than the cable conductor bottom and the ground contact of one strand to cover the top of each cable strand core by the intermediate line.

According to the preferred technical scheme, the inflatable telescopic assembly comprises a fixed shaft sleeve, a containing cavity with an opening at the outer end is formed in the fixed shaft sleeve, an elastic telescopic pipe is inserted into the containing cavity, one end of the elastic telescopic pipe is fixedly bonded with the bottom surface of the containing cavity, an air inlet pipe is arranged at the inner end of the elastic telescopic pipe, the fixed shaft sleeve is fixedly inserted into a positioning shaft sleeve arranged outside a middle line and fixed by glue, the air inlet pipe penetrates through the fixed shaft sleeve and the positioning shaft sleeve and extends into the filling cavity, one end of the air inlet pipe is communicated with the elastic telescopic pipe, and the other end of the air inlet pipe is communicated with.

According to a preferable technical scheme, the other end of the elastic extension tube is provided with a sealing plug, the positions of the sealing plug, which are right opposite to the elastic extension tube, are provided with insertion holes, one end of the elastic extension tube is inserted into the insertion holes and fixed by glue, the other end of the sealing plug is connected with a fixed bearing bush, the other end of the fixed bearing bush is an arc-shaped concave surface, a cable core is arranged in the arc-shaped concave surface and fixed by glue, and the whole accommodating cavity is sealed by the sealing plug.

Preferably, two sides of the outer layer are respectively provided with an extending edge, and the extending edges cover the strands of cable cores at the bottom and are in contact with the ground.

According to the preferable technical scheme, the sealing part and the inner wall of the outer tegument are integrally formed in an injection molding mode, the sealing part and the outer tegument are made of elastic rubber materials, a through hole is formed in the middle of the sealing part, a flexible rubber rod is arranged in each through hole penetrating through the sealing part, and the flexible rubber rod and the inner wall of the through hole are fixed through glue.

Preferably, the elastic telescopic tube is made of elastic rubber materials and is compressed into the accommodating cavity, an air inlet channel is formed in the elastic telescopic tube, and air is introduced into the air inlet channel by extruding the middle line and the whole elastic telescopic tube is stretched.

As a preferred technical scheme, a sealing ring is sleeved on the outer wall of the sealing plug, and the sealing plug is in interference fit with the inner wall of the accommodating cavity through the sealing ring.

The invention has the beneficial effects that: according to the invention, the inflatable intermediate wire is arranged at the top of each cable, so that when the cables are sheared, the shearing source can firstly contact the intermediate wire, after the intermediate wire is excessively extruded, the cable core wire can be ejected out by using the inflatable telescopic component to be far away from the intermediate shearing source, so that the direct shearing can be avoided well, the cable core wire is better protected, and when the intermediate wire is slightly sheared and extruded, the elastic supporting force of the intermediate wire can be used as a buffer, so that the safety is better.

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 schematic view of the internal structure of the inflatable telescoping assembly of the present invention;

FIG. 3 is a schematic structural view of the ejection state of FIG. 2;

fig. 4 is a schematic structural view after the whole ejection state of the present invention.

Detailed Description

As shown in fig. 1, the pressure-resistant cable includes more than one cable core 8 and an intermediate wire, the intermediate wire is located at the top of the cable core 8, and the intermediate wire is located between the cable cores 8 at the bottom.

The middle line comprises an outer tegument 4, a filling cavity 11 is arranged in the middle of the outer tegument 4, more than one sealing part 3 is arranged in the filling cavity 11 along the length direction of the outer tegument 4, the sealing part 3 divides the filling cavity 11 into a plurality of independent cavities, media are filled in each independent cavity, each cable core 8 is connected and communicated with the filling cavity 11 in the middle line through more than one independent inflatable telescopic assembly, the bottom of the cable core 8 larger than one strand is in contact with the ground, and the top of each strand of cable core 8 is covered by the middle line.

As shown in fig. 2, each of the inflation telescopic assemblies includes a fixed shaft sleeve 6, the fixed shaft sleeve 6 has an accommodating cavity 61 with an opening at an outer end, an elastic telescopic tube 14 is inserted into the accommodating cavity 61, one end of the elastic telescopic tube 14 is fixedly bonded to the bottom surface of the accommodating cavity 61, an air inlet pipe 13 is disposed at an inner end thereof, the fixed shaft sleeve 6 is fixedly inserted into a positioning shaft sleeve 18 disposed outside a middle line and fixed by applying glue, the air inlet pipe 13 penetrates through the fixed shaft sleeve 6 and the positioning shaft sleeve 18 and extends into the filling cavity 11, one end of the air inlet pipe 13 is communicated with the elastic telescopic tube 14, and the other end is communicated with the filling cavity 11.

Wherein, the other end of flexible pipe 14 of elasticity sets up a sealing plug 2, the position that faces flexible pipe of elasticity on the sealing plug 2 all sets up a jack, flexible pipe of elasticity 14 one end is inserted in the jack and is beaten glue water fixed, a fixed axle bush 7 is connected to the other end of sealing plug 2, the other end of fixed axle bush 7 is an arc concave surface, cable conductor 8 packs into in the arc concave surface and beats glue water bonding fixed, the sealed whole chamber that holds of sealing plug 2, the outer wall cover of sealing plug 2 is equipped with sealing ring 21, sealing plug 2 through sealing ring 21 with hold chamber 61 inner wall interference fit.

The sealing plug 2 is used to secure the collapsed resilient bellows 14 inside, so that the resilient bellows 14 is compressed, so that the medium in the filling cavity can not enter the elastic telescopic tube, the sealing plug has the assembly strength enough for preventing the air flow from entering the elastic telescopic tube, once the whole middle line is sheared or extruded, the medium in the filling cavity can enter the elastic telescopic pipe, the elastic telescopic pipe is slowly expanded by gradually increasing pressure, then the external sealing plug is ejected out to separate the sealing plug from the fixed shaft sleeve, so that the middle line is continuously pressed down to ensure that the medium in the filling cavity is continuously input into the elastic telescopic pipe, thus, the elastic expansion pipe gradually recovers deformation after being inflated, and finally drives the cable core wire connected with the elastic expansion pipe to be ejected outwards, as shown in fig. 3 and 4, at the moment, the cable core wire is far away from the pressed middle wire.

Wherein, the both sides of tegument 4 set up one respectively and extend limit 1, extend limit 1 and cover each strand of cable conductor 8 of bottom and contact with ground, cover cable conductor 8 through extending limit 1, realize better protection.

In this embodiment, the sealing portion 3 and the outer tegument 4 inner wall are injection moulding as an organic whole, and sealing portion 3 and outer tegument 4 all adopt elastic rubber material to make, and a through-hole is all seted up to the centre of sealing portion 3, and the through-hole of passing each sealing portion all sets up a flexible rubber rod 5, and flexible rubber rod 5 is beaten glue water with the through-hole inner wall and is fixed, and the effect that the intermediate line set up flexible rubber rod 5 is the whole compressive strength who increases the intermediate line, prevents excessive deformation, plays the function of stereotyping.

In this embodiment, the filling medium is water or gas.

The elastic extension tube 14 is made of elastic rubber material and is compressed into the accommodating cavity 61, an air inlet channel (not shown) is arranged in the elastic extension tube 14, air is introduced into the air inlet channel by extruding a middle line, and the whole elastic extension tube is stretched, and the elastic extension tube is completely compressed in the air-free state, so that the elastic extension tube can be arranged in the accommodating cavity for storage.

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 compression resistant cable, characterized in that: including being greater than one cable conductor and an intermediate line, the intermediate line is located the top of cable conductor, and the intermediate line is located between each cable conductor in bottom, the intermediate line includes a tegument, has a packing chamber in the middle of the tegument, is provided with the more than one sealing in the packing chamber along tegument length direction, and the sealing is cut apart into a plurality of independent cavities with a packing chamber, all fills the medium in every independent cavity, and each cable conductor all aerifys flexible subassembly through the more than one independence and is connected with the inside packing chamber of intermediate line and switch on, is greater than the cable conductor bottom and the ground contact of one strand to cover the top of each strand of cable conductor by the intermediate line.

2. The crush resistant cable of claim 1, wherein: the inflatable telescopic assembly comprises a fixed shaft sleeve, the inside of the fixed shaft sleeve is provided with an accommodating cavity with an opening at the outer end, an elastic telescopic pipe is inserted into the accommodating cavity, one end of the elastic telescopic pipe is fixedly bonded with the bottom surface of the accommodating cavity, an air inlet pipe is arranged at the inner end of the elastic telescopic pipe, the fixed shaft sleeve is fixedly inserted into a positioning shaft sleeve arranged outside the middle line and is fixed by glue, the air inlet pipe penetrates through the fixed shaft sleeve and the positioning shaft sleeve to extend into the filling cavity, one end of the air inlet pipe is communicated with the elastic telescopic pipe, and the other end of the air inlet pipe.

3. The crush resistant cable of claim 2, wherein: the other end of the elastic extension tube is provided with a sealing plug, the positions of the sealing plug, which are right opposite to the elastic extension tube, are respectively provided with an insertion hole, one end of the elastic extension tube is inserted into the insertion hole and fixed by glue, the other end of the sealing plug is connected with a fixed bearing bush, the other end of the fixed bearing bush is an arc-shaped concave surface, a cable core wire is arranged in the arc-shaped concave surface and is fixed by glue, and the sealing plug seals the whole accommodating cavity.

4. The crush resistant cable of claim 2, wherein: and two sides of the outer tegument layer are respectively provided with an extending edge which covers each strand of cable core wire at the bottom and is in contact with the ground.

5. The crush resistant cable of claim 1, wherein: the sealing part and the outer tegument are integrally formed by injection molding, the sealing part and the outer tegument are made of elastic rubber materials, a through hole is formed in the middle of the sealing part, a flexible rubber rod is arranged in each through hole penetrating through the sealing part, and the flexible rubber rod and the inner wall of the through hole are fixed by glue.

6. The crush resistant cable of claim 2, wherein: the elastic telescopic pipe is made of elastic rubber materials and is compressed to enter the accommodating cavity, an air inlet channel is arranged in the elastic telescopic pipe, and air is introduced into the air inlet channel by extruding a middle line and the whole elastic telescopic pipe is stretched.

7. The crush resistant cable of claim 3, wherein: and the outer wall of the sealing plug is sleeved with a sealing ring, and the sealing plug is in interference fit with the inner wall of the accommodating cavity through the sealing ring.