CN211507179U

CN211507179U - Environment-friendly large-section double-layer co-extrusion long-service-life high-flame-retardant cable for building

Info

Publication number: CN211507179U
Application number: CN202020513875.2U
Authority: CN
Inventors: 崔耀华; 孙广云; 高志刚; 桑胜男
Original assignee: Shandong Kunyu Cable Co ltd
Current assignee: Shandong Kunyu Cable Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2020-09-15
Anticipated expiration: 2030-04-09

Abstract

The utility model relates to a double-deck crowded high life height flame retardant cable altogether of big cross-section of environment-friendly for building, including leading the core, the outside of leading the core is provided with the oversheath, and the center department of oversheath has seted up the preformed hole, has the arc insulation board about leading core symmetric distribution through first spring coupling on the inner wall of preformed hole, is provided with the connecting rod on the inside wall of oversheath, and the tip of connecting rod is provided with the lug, and the oversheath passes through the connecting rod to be installed in the logical inslot that the spliced pole outer wall was seted up, sets up flutedly on the. The utility model discloses in, through the setting of oversheath, arc insulation board, first spring, will lead the core and penetrate the preformed hole on the oversheath, the arc insulation board is leading the outside of core and is realizing pressing from both sides tightly leading the core through the elastic potential energy of first spring, then will lead the core and be connected with interface connection, and the oversheath is protected in the outside of leading the core, has strengthened the life of cable.

Description

Environment-friendly large-section double-layer co-extrusion long-service-life high-flame-retardant cable for building

Technical Field

The utility model belongs to the technical field of the cable technique and specifically relates to a high flame retarded cable of high life is crowded altogether to environment-friendly large cross-section bilayer for building.

Background

The cable is generally a rope-like cable formed by twisting several or several groups of conductors (at least two in each group), each group of conductors are insulated from each other and usually twisted around a center, the whole outer surface is coated with a highly insulating coating, and the cable has the characteristics of internal electrification and external insulation and is widely applied in production and life. During cable wiring, need to cut and get rid of partial overburden, spill inside sinle silk, then insert corresponding interface with the sinle silk respectively, if the interval between the interface is great, then the overburden of cuting is longer, makes to spill and lead core length longer, and the part that spills does not have protector usually, and the overlength leads core and spills length and not only reduced the reliability of connecting, still influences the life of cable easily.

Therefore, the utility model provides a high flame retarded cable of high life is crowded altogether to environment-friendly large cross-section bilayer for building.

Disclosure of Invention

The utility model discloses be exactly for solving the cable and leading the core and spill the poor problem of partial protecting effect, and the double-deck high flame retarded cable of crowded high life altogether of environment-friendly large cross section for building that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a double-deck crowded high life height flame retardant cable altogether of big cross-section of environment-friendly for building, is including leading the core, the outside of leading the core is provided with the oversheath, the center department of oversheath has seted up the preformed hole, there is the arc insulation board about leading core symmetric distribution through first spring coupling on the inner wall of preformed hole, be provided with the connecting rod on the inside wall of oversheath, the tip of connecting rod is provided with the lug, the oversheath passes through the connecting rod and installs in the logical inslot that the spliced pole outer wall was seted up, set up flutedly on the both sides cell wall that leads to the groove, the interior table wall of recess has the stopper through.

Preferably, the outer side wall of the bump is a chamfered surface, and the side wall of the end part of the limiting block is a chamfered surface.

Preferably, the inner side wall of the arc-shaped insulating plate is provided with an anti-skid convex circle, and the anti-skid convex circle is made of rubber materials.

Preferably, the cross section of the connecting column is of a circular structure, the cross section of the outer sheath is of a fan-shaped structure, and the connecting column and the outer sheath are arranged concentrically.

Preferably, the end part of the connecting rod is connected with the through groove in a plugging manner.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through the setting of oversheath, arc insulation board, first spring, will lead the core and penetrate the preformed hole on the oversheath, the arc insulation board is leading the outside of core and is realizing pressing from both sides tightly leading the core through the elastic potential energy of first spring, then will lead the core and be connected with interface connection, and the oversheath is protected in the outside of leading the core, has strengthened the life of cable.

2. The utility model discloses in, through the spliced pole, the connecting rod, the setting of stopper, insert the inside in logical groove on the spliced pole with the connecting rod on the oversheath, the scarf of lug lateral wall forms the extrusion in the face of the scarf of stopper lateral wall, make the stopper slide to the inside of recess, the second spring compression, the connecting rod gets into logical inslot portion back completely, the stopper slides to the outside of recess under the reset action of second spring, it is spacing to it with the lug block, thereby will lead the core and fix the outside at the spliced pole, make the multiunit lead the core and distribute in order, improve the connection reliability of leading the core.

Drawings

FIG. 1 is a schematic diagram illustrating a front view structure of an environment-friendly large-cross-section double-layer co-extrusion long-life high-flame-retardant cable for buildings according to an embodiment of the present invention;

FIG. 2 is a schematic diagram showing a cross-sectional view of a construction environment-friendly large-section double-layer co-extrusion high-life high-flame-retardant cable according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of part A of an environmentally-friendly large-cross-section double-layer co-extrusion long-life high-flame-retardant cable for building according to an embodiment of the present invention;

illustration of the drawings:

1. a guide core; 2. connecting columns; 201. a through groove; 202. a groove; 3. an arc-shaped insulating plate; 301. anti-skid convex circles; 4. a first spring; 5. an outer sheath; 501. reserving a hole; 6. a limiting block; 7. a second spring; 8. a connecting rod; 801. and (4) a bump.

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 efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a high flame retarded cable of high life is crowded altogether to big cross-section bilayer of environment-friendly for building, is including leading core 1, leads the outside of core 1 and is provided with oversheath 5, and oversheath 5 is preferred to be with the rubber sleeve, improves the wear-resisting effect and the high temperature resistant effect of oversheath 5. The center department of oversheath 5 has seted up preformed hole 501, is convenient for penetrate and leads core 1, connects the arc insulation board 3 about leading core 1 symmetric distribution through first spring 4 on the inner wall of preformed hole 501, and arc insulation board 3 plays the tight fixed action of clamp in the outside of leading core 1. The connecting rods 8 are arranged on the inner side walls of the outer sheaths 5, the protruding blocks 801 are arranged at the end portions of the connecting rods 8, the outer sheaths 5 are mounted inside the through grooves 201 formed in the outer wall of the connecting column 2 through the connecting rods 8, so that the outer sheaths 5 are fixed with the connecting column 2 simultaneously, and the guide cores 1 are prevented from being placed randomly. Groove 202 has been seted up on the both sides cell wall that leads to groove 201, and the interior table wall of groove 202 has stopper 6 through second spring 7 elastic connection, stopper 6 and groove 202 sliding fit for stopper 6 is when not receiving outside extrusion force, and the resilience force that second spring 7 produced makes the original position of stopper 6 motion.

Specifically, as shown in fig. 3, the outer side wall of the protrusion 801 is a chamfered surface, and the end side wall of the limiting block 6 is a chamfered surface, so that the protrusion 801 moves, the chamfered surface of the outer side wall of the protrusion 801 forms extrusion on the chamfered surface of the side wall of the limiting block 6, so that the limiting block 6 slides in the groove 202, and a limiting effect is achieved under the resetting effect of the second spring 7.

Specifically, as shown in fig. 1, the inner side wall of the arc-shaped insulating plate 3 is provided with an anti-slip convex circle 301, the anti-slip convex circle 301 is made of rubber materials, the friction force between the anti-slip convex circle 301 and the guide core 1 is increased, and the fixing stability effect of the guide core 1 is enhanced.

Specifically, as shown in fig. 2, the cross section of the connecting column 2 is a circular structure, the cross section of the outer sheath 5 is a fan-shaped structure, and the connecting column 2 and the outer sheath 5 are concentrically arranged, so that the outer sheath 5 and the connecting column 2 are combined to form the circular structure.

Specifically, as shown in fig. 2, the end of the connecting rod 8 is inserted into the through groove 201, so that the arc-shaped insulating plate 3 is fixed outside the connecting column 2.

The working principle is as follows: during the use, with the hole 501 that reserves on the oversheath 5 and pass and lead core 1, the arc insulation board 3 is tight the realization of leading core 1 through the elastic potential energy of first spring 4 outside leading core 1, then will lead core 1 and interface connection and be connected, oversheath 5 protects in the outside of leading core 1, has strengthened the life of cable. Then insert the inside of logical groove 201 on the spliced pole 2 with connecting rod 8 on the oversheath 5, the chamfer of lug 801 lateral wall forms the extrusion to the chamfer of stopper 6 lateral wall, make stopper 6 slide to the inside of recess 202, the compression of second spring 7, connecting rod 8 gets into logical inside back of groove 201 completely, stopper 6 slides to the outside of recess 202 under the reset action of second spring 7, it is spacing to it with lug 801 block, thereby will lead core 1 and fix the outside at spliced pole 2, make the orderly distribution of core 1 is led to the multiunit, improve the connection reliability of leading core 1. When the outer sheath 5 needs to be detached, the connecting rod 8 separates the outer sheath 5 from the connecting column 2 in a side sliding mode from the through groove 201, and the detachment and installation efficiency of the outer sheath 5 is improved conveniently.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An environment-friendly large-section double-layer co-extrusion high-service-life high-flame-retardant cable for buildings comprises a guide core (1), it is characterized in that an outer sheath (5) is arranged outside the guide core (1), a preformed hole (501) is arranged at the center of the outer sheath (5), the inner wall of the preformed hole (501) is connected with arc-shaped insulating plates (3) which are symmetrically distributed relative to the guide core (1) through a first spring (4), a connecting rod (8) is arranged on the inner side wall of the outer sheath (5), a lug (801) is arranged at the end part of the connecting rod (8), the outer sheath (5) is arranged in a through groove (201) arranged on the outer wall of the connecting column (2) through a connecting rod (8), grooves (202) are formed in the groove walls on the two sides of the through groove (201), and the inner surface wall of each groove (202) is elastically connected with a limiting block (6) through a second spring (7).

2. The environment-friendly large-section double-layer co-extrusion high-service-life high-flame-retardant cable for buildings according to claim 1, wherein the outer side wall of the bump (801) is a chamfered surface, and the end side wall of the limiting block (6) is a chamfered surface.

3. The environment-friendly large-section double-layer co-extrusion high-service-life high-flame-retardant cable for the building as claimed in claim 1, wherein the inner side wall of the arc-shaped insulating plate (3) is provided with an anti-skid convex circle (301), and the anti-skid convex circle (301) is made of rubber materials.

4. The environment-friendly large-section double-layer co-extrusion high-service-life high-flame-retardant cable for the building as claimed in claim 1, wherein the section of the connecting column (2) is of a circular structure, the section of the outer sheath (5) is of a fan-shaped structure, and the connecting column (2) and the outer sheath (5) are arranged concentrically.

5. The environment-friendly large-section double-layer co-extrusion high-service-life high-flame-retardant cable for buildings according to claim 1, wherein the end of the connecting rod (8) is in plug connection with the through groove (201).