CN111899919A

CN111899919A - Expansion type cable

Info

Publication number: CN111899919A
Application number: CN202010901056.XA
Authority: CN
Inventors: 陈渊
Original assignee: Jiangsu Zhucheng Cable Co ltd
Current assignee: Jiangsu Zhucheng Cable Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2020-11-06

Abstract

The invention discloses an expansion type cable which comprises a cable inner core, a lead group, an outer shell, an expansion mechanism and a butt strip, wherein the cable inner core is connected with the lead group; according to the invention, a plurality of expansion strip-shaped openings are uniformly formed in the peripheral side part of the outer shell, an expansion mechanism is respectively arranged on each expansion strip-shaped opening, and the two sides of each expansion strip-shaped opening are connected through the coil spring body and the extension end, so that the whole outer shell can be expanded and contracted, and the cable inner cores with different diameters can be matched.

Description

Expansion type cable

Technical Field

The invention relates to an expansion type cable.

Background

The safety, operability, economy and environmental protection of the automobile and the electronization thereof are rapidly developed, various electronic devices installed on the automobile are gradually increased, and the use amount of distribution cables in the automobile is greatly increased; present auto cable generally includes cable inner core and shell body, install the cable inner core inside the shell body, avoid inner core and outside contact through the shell body, thereby effectively avoid the damage of cable inner core, current shell body generally all cup joints in the cable inner core outside all around, the shell body of different diameter sizes is matchd to different cable inner core sizes, so make the shell body need match production, it is not nimble convenient to use, the direct connected mode who fits the inner wall of shell body of cable inner core makes the resistant extrudeing of structure poor in addition.

Disclosure of Invention

Aiming at the defects of the prior art, the invention solves the problems that: the expansion type cable with the outer shell and the cable inner core flexible and convenient to install and extrusion resistant is provided.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

an expansion type cable comprises a cable inner core, a lead group, an outer shell, an expansion mechanism and a butt strip; the section of the outer shell is of an annular structure; the cable inner core is arranged in the center of the inner part of the outer shell; a plurality of lead groups are arranged in the cable inner core; a plurality of abutting strips are uniformly arranged on the periphery of the inside of the outer shell; the outer side of the abutting strip is fixedly connected to the inner wall of the outer shell through a connecting strip; the inner side of the abutting strip abuts against the side part of the cable inner core; a plurality of expansion strip-shaped openings are uniformly formed in the peripheral side part of the outer shell; inserting grooves are respectively formed in the two sides of the expansion strip-shaped opening; the expansion strip-shaped openings are respectively provided with an expansion mechanism; the expansion mechanism comprises a sleeve joint frame, a plug board, a coil spring body and a connecting board; the socket joint frame is of a U-shaped structure; the center of the coil spring body is sleeved on one side of the sleeving frame; the other side of the socket frame is arranged on the outer side of the plugboard; a plurality of sleeving frames are sequentially and uniformly arranged on the outer side of the insertion plate; the outer side of the insertion plate is inserted and installed in the insertion groove on one side of the expansion strip-shaped opening; a connecting plate is inserted and mounted in the inserting groove on the other side of the expansion strip-shaped opening; the outer side of the coil spring body is provided with an extension end; the extension end extends from the coil spring body and is fixedly connected to the side of the connecting plate.

Further, the expansion mechanism further comprises a T-shaped positioning screw rod; a plurality of T-shaped channels penetrating through the upper end and the lower end of the expansion strip-shaped opening are respectively arranged on the inserting grooves on the two sides of the expansion strip-shaped opening; the plug board and the connecting board are respectively provided with a plurality of threaded holes; the T-shaped positioning screw rod is inserted from the T-shaped channel at the upper end of the insertion groove and extends into the T-shaped channel at the lower end of the insertion groove after being threaded in the threaded hole.

Further, the cross-section of the connecting plate is of an L-shaped structure.

Further, the abutment strip is made of a rubber material.

Further, the outer shell is made of a PVC material.

Further, the inner side of the abutting strip is coated with a polytetrafluoroethylene coating.

Further, the cross section of the abutting strip is of a circular structure.

The invention has the advantages of

According to the invention, a plurality of expansion strip-shaped openings are uniformly formed in the peripheral side part of the outer shell, an expansion mechanism is respectively arranged on each expansion strip-shaped opening, and the two sides of each expansion strip-shaped opening are connected with the extension end through the coil spring body, so that the whole outer shell can be expanded and contracted, and the cable inner cores with different diameters are matched; the expansion mechanism is movably connected to the expansion strip-shaped opening of the outer shell, and the whole expansion mechanism is very convenient to disassemble and assemble through the insertion structure of the insertion plate, the connecting plate and the insertion groove and the connecting structure of the T-shaped positioning screw rod and the T-shaped channel; in addition, the elastic coefficient of the coil spring is relatively balanced, so that the cable inner core can be uniformly stressed, and the structural stability is good; the butt strip is arranged on the outer side of the periphery of the cable inner core, so that the cable inner core and the outer shell are not in contact, and the extrusion resistance is improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged schematic view of the expanding mechanism of the present invention.

Fig. 3 is a schematic partial top view of the stent of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, an expansion type cable includes an inner core 1 of the cable, a conductor set 2, an outer shell 4, an expansion mechanism 5, and an abutting strip 3; the section of the outer shell 4 is of an annular structure; the cable inner core 1 is arranged in the center of the outer shell 4; a plurality of lead groups 2 are arranged in the cable inner core 1; a plurality of abutting strips 3 are uniformly arranged on the periphery inside the outer shell 4; the outer side of the abutting strip 3 is fixedly connected to the inner wall of the outer shell 4 through a connecting lath 31; the inner side of the abutting strip 3 abuts against the side part of the cable inner core 1; a plurality of expansion strip-shaped openings 41 are uniformly formed in the peripheral side part of the outer shell 4; the two sides of the expansion strip-shaped opening 41 are respectively provided with an inserting groove 42; the expansion bar-shaped openings 41 are respectively provided with an expansion mechanism 5; the expansion mechanism comprises a 5-socket frame 52, a plug board 53, a coil spring body 51 and a connecting board 54; the socket frame 52 is of a U-shaped structure; the center of the coil spring body 51 is sleeved on one side of the sleeving frame 52; the other side of the socket frame 52 is arranged on the outer side of the plug board 53; a plurality of socket frames 52 are sequentially and uniformly arranged on the outer side of the plug board 53; the outer side of the plug board 53 is inserted into the plug groove 42 on one side of the expansion strip-shaped opening 41; a connecting plate 54 is inserted and connected in the inserting groove 42 at the other side of the expansion strip-shaped opening 41; the outer side of the coil spring body 51 is provided with an extension end 511; the extension end 511 extends from the coil spring body 51 to be fixedly coupled to a side of the connection plate 54.

As shown in fig. 1 to 3, it is further preferable that the expanding mechanism 5 further includes a T-shaped positioning screw 55; a plurality of T-shaped channels 43 penetrating through the upper end and the lower end of the expansion strip-shaped opening 41 are respectively arranged on the inserting grooves 42 at the two sides of the expansion strip-shaped opening 41; the plug board 53 and the connecting board 54 are respectively provided with a plurality of threaded holes 56; the T-shaped positioning screw 55 is inserted into the T-shaped channel 43 at the upper end of the insertion groove 43 and threaded through the threaded hole 56 to extend into the T-shaped channel 43 at the lower end of the insertion groove 42. Further, the cross section of the connecting plate 54 is in an L-shaped structure. Further, the abutment strip 3 is made of a rubber material. Further, the outer shell 4 is made of PVC material. Further, the inner side of the abutting strip 3 is coated with a polytetrafluoroethylene coating. Further, the cross section of the abutting strip 3 is of a circular structure.

According to the invention, a plurality of expansion strip-shaped openings 41 are uniformly formed in the peripheral side part of an outer shell 4, an expansion mechanism 5 is respectively arranged on each expansion strip-shaped opening 41, and two sides of each expansion strip-shaped opening 41 are connected through a coil spring body 51 and an extension end 511, so that the whole outer shell 4 can be expanded and contracted, and the cable inner cores 1 with different diameters are matched; the expansion mechanism 5 of the invention is movably connected to the expansion strip-shaped opening 41 of the outer shell, and the whole expansion mechanism 5 is convenient to disassemble and assemble through the plugging structure of the plugging plate 53, the connecting plate 54 and the plugging groove 42 and the connecting structure of the T-shaped positioning screw 55 and the T-shaped channel 43; in addition, the elastic coefficient of the coil spring is relatively balanced, so that the cable inner core 1 can be uniformly stressed, and the structural stability is good; through having set up butt strip 3 in the outside all around of cable inner core 1 for contactless between cable inner core 1 and the shell body 4 has increased resistant extrusion ability.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. An expansion type cable is characterized by comprising a cable inner core, a lead group, an outer shell, an expansion mechanism and a butt strip; the section of the outer shell is of an annular structure; the cable inner core is arranged in the center of the inner part of the outer shell; a plurality of lead groups are arranged in the cable inner core; a plurality of abutting strips are uniformly arranged on the periphery of the inside of the outer shell; the outer side of the abutting strip is fixedly connected to the inner wall of the outer shell through a connecting strip; the inner side of the abutting strip abuts against the side part of the cable inner core; a plurality of expansion strip-shaped openings are uniformly formed in the peripheral side part of the outer shell; inserting grooves are respectively formed in the two sides of the expansion strip-shaped opening; the expansion strip-shaped openings are respectively provided with an expansion mechanism; the expansion mechanism comprises a sleeve joint frame, a plug board, a coil spring body and a connecting board; the socket joint frame is of a U-shaped structure; the center of the coil spring body is sleeved on one side of the sleeving frame; the other side of the socket frame is arranged on the outer side of the plugboard; a plurality of sleeving frames are sequentially and uniformly arranged on the outer side of the insertion plate; the outer side of the insertion plate is inserted and installed in the insertion groove on one side of the expansion strip-shaped opening; a connecting plate is inserted and mounted in the inserting groove on the other side of the expansion strip-shaped opening; the outer side of the coil spring body is provided with an extension end; the extension end extends from the coil spring body and is fixedly connected to the side of the connecting plate.

2. The expandable cable of claim 1, wherein the expansion mechanism further comprises a T-shaped set screw; a plurality of T-shaped channels penetrating through the upper end and the lower end of the expansion strip-shaped opening are respectively arranged on the inserting grooves on the two sides of the expansion strip-shaped opening; the plug board and the connecting board are respectively provided with a plurality of threaded holes; the T-shaped positioning screw rod is inserted from the T-shaped channel at the upper end of the insertion groove and extends into the T-shaped channel at the lower end of the insertion groove after being threaded in the threaded hole.

3. An expanded cable according to claim 1, wherein said connecting plate has an L-shaped configuration in cross section.

4. A spreading cable according to claim 1, wherein said abutment strip is made of a rubber material.

5. The expansion cable of claim 1, wherein the outer housing is made of PVC material.

6. The expanded cable of claim 1, wherein the inside of the abutting strips is coated with a polytetrafluoroethylene coating.

7. A spreading cable according to claim 1, wherein said abutting strips are of circular configuration in cross-section.