CN115274200B

CN115274200B - Lotus root core polytetrafluoroethylene electric wire and mounting method thereof

Info

Publication number: CN115274200B
Application number: CN202211221472.0A
Authority: CN
Inventors: 蔡白桦; 翁衍; 蔡琼薇
Original assignee: Guangzhou Feitai Meihua Cable Co ltd
Current assignee: Guangzhou Feitai Meihua Cable Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2022-11-29
Anticipated expiration: 2042-10-08
Also published as: CN115274200A

Abstract

The invention relates to the technical field of lotus root core cables, in particular to a lotus root core polytetrafluoroethylene electric wire and an installation method thereof. According to the invention, the outer skin is stripped in advance, the inner cable is protected by the removable sleeve, and the rubber box and the top plate are arranged at the port of the cable, so that the rubber box can be burst by the top plate when the sleeve is taken down, thereby releasing the rubber liquid to seal the end part of the cable, the working efficiency when the cable is installed is obviously improved, and the operation is more convenient.

Description

Lotus root core polytetrafluoroethylene electric wire and mounting method thereof

Technical Field

The invention relates to the technical field of lotus root core cables, in particular to a lotus root core polytetrafluoroethylene electric wire and an installation method thereof.

Background

At present, in the cables used in mobile communication, microwave measurement and other systems in China, most of the insulation layers are solid core polytetrafluoroethylene, the dielectric coefficient is large, and the attenuation is large when signals are transmitted, so that the lotus root core polytetrafluoroethylene electric wire is gradually applied due to the low attenuation.

When carrying out erection joint to lotus root core polytetrafluoroethylene electric wire, need through more complicated processing and operation in the present stage, generally need give the crust earlier and peel off, then seal glue at the junction, because present communication cable is in order to ensure transmission effect and speed, single cable is all relatively thick, operates very loaded down with trivial details when sealing glue in skinning the cable, single operation often more than ten minutes, has seriously dragged job schedule, awaits an urgent need to improve.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a lotus root core polytetrafluoroethylene electric wire and an installation method thereof, which can effectively solve the problem of low efficiency in peeling and sealing a lotus root core cable in the prior art.

In order to realize the purpose, the invention is realized by the following technical scheme:

the invention provides a lotus root core polytetrafluoroethylene electric wire which comprises a cable main body, an end pipe and an expansion pipe, wherein the end pipe is connected between the cable main body and the expansion pipe, the outer diameters of the cable main body and the expansion pipe are both larger than that of the end pipe, the outer diameter of the expansion pipe is gradually increased from the end pipe, a sleeving area positioned at the outer side of the end pipe is formed at the front end of the cable main body, and a sleeve is sleeved at the sleeving area at the end part of the cable main body;

wherein, the inside of cable main part, end pipe and expand tube is equipped with the core bone jointly, the core bone includes main core bone and inferior core bone, main core bone is located cable main part and end pipe, inferior core bone is located the expand tube, the top plate that has a plurality of orientation expand tube inner wall on the inferior core bone, evenly be equipped with a plurality of gluey boxes that correspond with the top plate position on the inner wall of expand tube, be equipped with the extruded article on the inner wall of telescopic open end, the extruded article extrudees the expand tube and makes to glue the box and be broken by the top plate top when the sleeve is got rid of.

In the lotus root core polytetrafluoroethylene electric wire, the end part of the cable main body is provided with the clamping head, and the opening end of the sleeve is provided with the bayonet matched with the clamping head.

In the lotus root core polytetrafluoroethylene electric wire, the clamping head comprises a connecting part perpendicular to the end part of the cable main body and a hook part parallel to the end part of the cable main body, and the hook part and the bayonet are connected through a welding area.

In the lotus root core polytetrafluoroethylene electric wire, the outer wall of the end pipe is provided with spiral outer threads, the extrusion part is inner threads matched with the outer threads, the number of turns of the inner threads is 1, the outer wall of the end pipe is provided with friction plates staggered with the outer threads, and the inner side surfaces of the inner threads are friction surfaces.

In the lotus root core polytetrafluoroethylene wire, the outer side surface of the friction plate is densely distributed with metal particles.

In the above-mentioned lotus root core polytetrafluoroethylene electric wire, main core bone includes a core section of thick bamboo, evenly is equipped with a plurality of faggings on the outer wall of a core section of thick bamboo, every the tip of fagging all is equipped with the backplate, and the main core bone that is located the end intraduct adopts the heat conduction material to make, be equipped with a plurality of heat conduction posts that extend to the end intraduct and contact with the backplate on the internal surface of friction disc, the friction disc adopts the heat conduction material to make equally.

In foretell lotus root core polytetrafluoroethylene electric wire, the tip of cable main part is equipped with the sealing washer with the sleeve adaptation, the screw-thread fit of outer screw thread and interior screw thread provides the extrusion force to the sealing washer.

The invention also provides a method for mounting the lotus root core polytetrafluoroethylene electric wire, which comprises the following steps:

s1: rotating the sleeve anticlockwise to enable the sleeve to gradually fall off from the end pipe, and when the end of the sleeve reaches the front of the expansion pipe, pulling out the sleeve with force to enable the glue box to be burst by the top plate, so that glue solution flows out to seal the port of the wire;

s2: the wire ports are connected to the connectors.

In the above step S1, when the sleeve is rotated counterclockwise, the rotation speed is not less than 1 rotation per second.

Compared with the prior art, the sheath is stripped in advance, the removable sleeve is used for protecting the internal cable, the rubber box and the top plate are arranged at the port of the cable, when the sleeve is removed, the rubber box can be burst by the top plate to release the rubber liquid to seal the end part of the cable, the working efficiency of installing the cable is obviously improved, and the operation is more convenient.

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 invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic view of the present invention with the sleeve removed;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a front view of FIG. 1;

FIG. 4 isbase:Sub>A cross-sectional view A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 6 is a partial schematic structural view of a core of the present invention;

FIG. 7 is a schematic view of a portion of a friction plate according to the present invention;

FIG. 8 is a schematic view of the present invention without the sleeve removed;

FIG. 9 is a schematic structural view of a sleeve of the present invention;

FIG. 10 is a schematic structural view of another embodiment of a sleeve of the present invention;

FIG. 11 is a schematic view of the opening of the sleeve according to the present invention;

fig. 12 is an enlarged view of the structure at C in fig. 8.

The reference numerals in the drawings represent: 1. a cable body; 2. an end tube; 3. expanding the tube; 301. a glue box; 4. clamping a head; 5. a main core rod; 501. a core barrel; 502. a supporting plate; 503. a guard plate; 6. external thread; 7. a friction plate; 701. a heat-conducting column; 8. a sleeve; 9. a bayonet; 10. internal threads; 11. a welding zone; 12. a secondary mandril; 13. a topsheet.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Example (b):

referring to fig. 1-12, a lotus root core polytetrafluoroethylene electric wire, includes cable main part 1, end pipe 2 and expand tube 3, and end pipe 2 is connected between cable main part 1 and expand tube 3, and the external diameter of cable main part 1 and expand tube 3 all is greater than end pipe 2, and the external diameter of expand tube 3 is crescent from end pipe 2 department, and the front end of cable main part 1 forms the cup joint region that is located the end pipe 2 outside, and the sleeve 8 has been cup jointed in the cup joint region to the tip of cable main part 1. Strip in advance or reserve a slice and cup joint the region at the tip of cable, only leave the inside core of a layer thinner protection skin (being end pipe 2 part) and protect, saved the process of peeling the crust when the installation, convenient and fast sets up sleeve 8 cover simultaneously and is outside end pipe 2, can protect the tip of cable when not using the cable, avoids end pipe 2 to be destroyed by external force.

Referring to fig. 6, the inside of cable main part 1, end pipe 2 and expand tube 3 is equipped with the core bone jointly, the core bone includes main core bone 5 and time core bone 12, main core bone 5 is located cable main part 1 and end pipe 2, time core bone 12 is located expand tube 3, time core bone 12 is last to have a plurality of top sheets 13 towards the 3 inner walls of expand tube, evenly be equipped with a plurality of gluey boxes 301 that correspond with top sheet 13 position on the inner wall of expand tube 3, be equipped with the extruded article on the inner wall of the open end of sleeve 8, the extruded article extrudes expand tube 3 and makes gluey box 301 burst by top sheet 13 when sleeve 8 is got rid of.

The inside of cable sets up a core bone, both can carry out neatly arranging to a plurality of sinle silks, also can provide the support to cable inner space, is difficult for being flattened when making it receive the oppression. The part of core bone in expand tube 3 department is different with it in cable main part 1 and end pipe 2 inside, for time core bone 12, a plurality of top sheets 13 have on it, the top of top sheet 13 sets up sharp blade form, be equipped with the extruded article on the inner wall of 8 openings of sleeve, the extruded article can be with expand tube 3 extrusion to inside when sleeve 8 is taken off, glue box 301 on the 3 inner walls of expand tube then can contact with top sheet 13 and be broken gradually, glue the inside glue solution of box 301 flows gradually, will glue box 301 internal seal, the tip that is about to the cable is sealed, the realization is to the work of gluing of cable tip, it is quick convenient, only need outwards to pull out 8 efforts of sleeve and can realize the sealing to the tip automatically, operation time has been showing and has been shortened.

Referring to fig. 8 and 12, the end of the cable body 1 is provided with a chuck 4, and the open end of the sleeve 8 is provided with a bayonet 9 adapted to the chuck 4. The sleeve 8 is connected with the cable main body 1 through the matching of the clamping head 4 and the clamping opening 9, so that the sleeve 8 is stably connected to the cable main body 1 when the cable is not used, and the inner end pipe 2 and the inner expansion pipe 3 are protected. When the sleeve 8 needs to be taken down, the sleeve 8 is rotated for a certain angle, so that the clamping head 4 can be separated from the bayonet 9, and the use is convenient.

Referring to fig. 12, the chuck 4 includes a connection portion perpendicular to the end of the cable body 1 and a hook portion parallel to the end of the cable body 1, and the hook portion and the bayonet 9 are connected by a weld zone 11.

When the cable is produced, after sleeve 8 is sleeved on end pipe 2, sleeve 8 is connected with cable main body 1 through the cooperation of chuck 4 and bayonet 9, at the moment, in order to ensure sleeve 8 can not rotate and drop, the butt fusion can be carried out between hook part position and bayonet 9 of chuck 4, sleeve 8 can not rotate, and when sleeve 8 needs to be taken down, rotating sleeve 8 hard can destroy fusion zone 11 and make chuck 4 break away from, set fusion zone 11 at the position, make the power that fusion zone 11 received when rotating sleeve 8 be torsional force rather than pulling force, twist off fusion zone 11 more easily, and the operation is more convenient.

Because the moisture contained in the cable is generally removed when the cable is installed, the current practice is to heat the end part of the cable from the root of the thread end (i.e. the end of the end pipe 2 close to the cable main body 1) gradually by a fire gun, so that the moisture is discharged from the inside to the outside, the operation is also complicated, the external tool is used, much time is consumed, and the invention is further designed on the basis of the scheme, so as to further improve the operation efficiency:

referring to fig. 3 and 11, the outer wall of the end pipe 2 is provided with spiral outer threads 6, the extrusion is provided with inner threads 10 matched with the outer threads 6, the number of the turns of the inner threads 10 is 1, the outer wall of the end pipe 2 is provided with friction plates 7 staggered with the outer threads 6, and the inner side surfaces of the inner threads 10 are friction surfaces.

The outer surface of the end pipe 2 is provided with outer threads 6, the outer threads 6 are continuous from one end of the end pipe 2 to the other end, the extrusion part mentioned in the above scheme is provided with inner threads 10 matched with the outer threads 6, the inner threads 10 are only arranged in a circle, so when the sleeve 8 is pulled out, the sleeve 8 needs to be rotated, the sleeve 8 is gradually screwed out in a thread matching mode, because the friction plate 7 fixed on the outer surface of the end pipe 2 is arranged at the neutral position between the outer threads 6, and the inner side surface (the top end of the threads) of the inner threads 10 is arranged into a rough surface, when the inner threads 10 are gradually screwed out, the inner threads 10 and the friction plate 7 generate heat through friction, and the heat is transferred into the end pipe 2. Because the inner screw threads 10 gradually move outwards when being screwed out, the heating process of the end pipe 2 also moves from the root to the end, moisture can be discharged from the inside to the outside, and the heating process of a fire gun is simulated.

Furthermore, metal particles are densely distributed on the outer side surface of the friction plate 7, so that the inner screw thread 10 and the friction plate 7 can efficiently generate heat when rotating, more heat is generated to heat the inner space of the end pipe 2, and the dehumidification effect is ensured.

In addition, referring to fig. 5, the main core 5 includes a core barrel 501, a plurality of supporting plates 502 are uniformly arranged on the outer wall of the core barrel 501, a protective plate 503 is arranged at the end of each supporting plate 502, the main core 5 located inside the end pipe 2 is made of a heat conducting material, a plurality of heat conducting columns 701 extending to the inside of the end pipe 2 and contacting with the protective plate 503 are arranged on the inner surface of the friction plate 7, and the friction plate 7 is also made of a heat conducting material.

The part core that is located end pipe 2 department adopts the heat conduction material preparation, for example adopt the sheetmetal preparation, fagging 502 and backplate 503 can provide better supporting effect, between the fagging 502 with the core barrel 501 inside then can be used to place the sinle silk of arranging, friction disc 7 adopts the heat conduction material preparation equally, its inside surface is connected heat conduction post 701 and is stretched into in end pipe 2 and fagging 502 contact, so can make the heat that produces when interior screw thread 10 rubs with friction disc 7 transmit inside end pipe 2 fast, fully to 2 internal environment heating of end pipe, the dehumidification effect is improved.

As another preferred embodiment of the present invention, a sealing ring fitted with the sleeve 8 is provided at the end of the cable body 1, and the thread engagement of the outer threads 6 and the inner threads 10 provides a pressing force to the sealing ring. Different from the mode of fixing the sleeve 8 through the chuck 4 and the bayonet 9, after the extrusion part is provided with the inner threads 10, the sleeve 8 can be locked through the thread matching mode of the outer threads 6 and the inner threads 10, meanwhile, the end part of the sleeve 8 is sealed through matching with the sealing ring, and the locking effect is ensured.

s1: rotating the sleeve 8 anticlockwise to enable the sleeve 8 to gradually fall off from the end pipe 2, and when the end part of the sleeve 8 reaches the front of the expansion pipe 3, pulling out the sleeve 8 with force to enable the glue box 301 to be burst by the top sheet 13, and enabling glue solution to flow out to seal the port of the wire;

s2: the wire ports are connected to the connectors.

In the above step S1, when the sleeve 8 is rotated counterclockwise, the rotation speed is not less than 1 turn per second.

When the cable and the joint are installed, the sleeve 8 is separated from the cable main body 1, then the sleeve 8 is gradually screwed out, the rotating speed is not lower than 1 circle per second in the rotating process, the friction effect between the inner threads 10 and the friction plate 7 can be ensured, the inner threads and the friction plate can generate enough heat when in friction, and if the rotating speed is slow, normal heating is difficult. The heat is transferred to the inner space of the end pipe 2 and then heats the inner space, the heating position is gradually moved outwards along with the continuous outward movement of the inner screw thread 10, and the moisture is gradually discharged from the inside to the outside. When the inner screw threads 10 move to the tail ends of the outer screw threads 6 and are separated from the outer screw threads 6, the sleeve 8 is pulled outwards forcibly, the expansion pipe 3 can be extruded inwards through the inner screw threads 10, the rubber box 301 is broken, the glue solution flows out to seal the port of the expansion pipe 3, the dehumidification and glue sealing processes of the cable are completed, the operation is rapid and convenient, the process is shortened to within 1 minute, and the working efficiency is improved remarkably.

The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The lotus root core polytetrafluoroethylene electric wire is characterized by comprising a cable main body (1), an end pipe (2) and an expansion pipe (3), wherein the end pipe (2) is connected between the cable main body (1) and the expansion pipe (3), the outer diameters of the cable main body (1) and the expansion pipe (3) are respectively larger than the end pipe (2), the outer diameter of the expansion pipe (3) is gradually increased from the end pipe (2), a sleeving area positioned on the outer side of the end pipe (2) is formed at the front end of the cable main body (1), and a sleeve (8) is sleeved at the sleeving area at the end part of the cable main body (1);

wherein, the inside of cable main part (1), end pipe (2) and expand tube (3) is equipped with the core bone jointly, the core bone includes main core bone (5) and time core bone (12), main core bone (5) are located cable main part (1) and end pipe (2), time core bone (12) are located expand tube (3), time core bone (12) are gone up and are had a plurality of top sheets (13) towards expand tube (3) inner wall, evenly be equipped with a plurality of gluey boxes (301) that correspond with top sheets (13) position on the inner wall of expand tube (3), be equipped with the extruded piece on the inner wall of the open end of sleeve (8), the extruded piece extrudees expand tube (3) and makes gluey box (301) burst by top sheets (13) when sleeve (8) are got rid of.

2. The lotus root core polytetrafluoroethylene electric wire according to claim 1, wherein a clamping head (4) is arranged at the end of the cable main body (1), and a bayonet (9) matched with the clamping head (4) is arranged at the open end of the sleeve (8).

3. A lotus-core ptfe electric wire according to claim 2, wherein the clip (4) comprises a connecting portion perpendicular to the end of the cable body (1) and a hook portion parallel to the end of the cable body (1), the hook portion and the bayonet (9) being connected by a weld (11).

4. The lotus root core polytetrafluoroethylene electric wire according to claim 1, wherein spiral outer threads (6) are arranged on the outer wall of the end pipe (2), the extrusion part is inner threads (10) matched with the outer threads (6), the number of turns of the inner threads (10) is 1, a friction plate (7) staggered with the outer threads (6) is arranged on the outer wall of the end pipe (2), and the inner side surface of the inner threads (10) is a friction surface.

5. Lotus core PTFE electric wire according to claim 4, wherein the friction plate (7) is densely covered with metal particles on the outer surface.

6. The lotus-core polytetrafluoroethylene electric wire according to claim 4, wherein the main core (5) comprises a core barrel (501), a plurality of supporting plates (502) are uniformly arranged on the outer wall of the core barrel (501), a protecting plate (503) is arranged at the end of each supporting plate (502), the main core (5) inside the end pipe (2) is made of heat conducting material, a plurality of heat conducting columns (701) which extend into the end pipe (2) and are in contact with the protecting plate (503) are arranged on the inner side surface of the friction plate (7), and the friction plate (7) is also made of heat conducting material.

7. The lotus-root-core polytetrafluoroethylene electric wire according to claim 4, wherein a sealing ring matched with the sleeve (8) is arranged at the end of the cable main body (1), and the outer threads (6) and the inner threads (10) are matched in a threaded mode to provide extrusion force for the sealing ring.

8. A method for mounting a lotus-core polytetrafluoroethylene electric wire, which is applied to the lotus-core polytetrafluoroethylene electric wire as defined in any one of claims 1 to 7, and which comprises the following steps:

s1: rotating the sleeve anticlockwise to enable the sleeve to gradually fall off from the end pipe, and when the end part of the sleeve reaches the front of the expanding pipe, pulling out the sleeve with force to enable the glue box to be broken by the top plate, and enabling the glue solution to flow out to seal the port of the wire;

s2: the wire ports are connected to the connectors.

9. The method of claim 8, wherein in step S1, the rotating speed is not less than 1 turn per second when the sleeve is rotated counterclockwise.