CN210692159U

CN210692159U - Polyvinyl chloride insulation control cable

Info

Publication number: CN210692159U
Application number: CN201921906894.5U
Authority: CN
Inventors: 刘君
Original assignee: People Electrical Appliance Group Shanghai Co Ltd
Current assignee: People Electrical Appliance Group Shanghai Co Ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-06-05
Anticipated expiration: 2029-11-07

Abstract

The utility model discloses a polyvinyl chloride insulation control cable, including cushion collar and inner liner, the inner liner sets up in the outside of cushion collar, a plurality of elasticity strips of outside fixedly connected with of cushion collar, be equipped with cable core between elasticity strip and the inner liner, the first arc wall with cable core matched with is seted up to one side of elasticity strip, one side of inner liner seted up with cable core matched with second arc wall, just cable core is equipped with stop gear with the second arc wall. A polyvinyl chloride insulation control cable, can be so that cable shielding signal reaches insulating purpose simultaneously to and have certain fire-retardant and anti extruded effect, inject the position of cable core simultaneously, prevent that cable core from twisting in the lining, reduce the cracked possibility of cable core, when the cable receives the extrusion, through elasticity strip and elasticity filling strip elastic buffer, further avoid the cable directly by the extrusion damage.

Description

Polyvinyl chloride insulation control cable

Technical Field

The utility model relates to the technical field of cables, in particular to polyvinyl chloride insulated control cable.

Background

The cable is a material used for electric power, communication and related transmission purposes, and mainly plays a role in transmission of conductors inside the cable, and with the rapid development of the communication industry, the cable develops from a simple telephone and telegraph cable in the past to thousands of pairs of telephone cables, coaxial cables, optical cables, data cables, even combined communication cables and the like. The product has small and uniform structure size, high requirement on manufacturing precision, and is a wire product for transmitting electric energy and information and realizing electromagnetic energy conversion by a cable. The broad sense of wire and cable is also referred to as cable for short, and the narrow sense of cable is insulated cable, which can be defined as an assembly of parts, including one or more insulated cores, and their respective possible coatings, total protective layers and outer protective layers, and the cable may have additional conductors without insulation, the cable often needs to be pulled during laying, and the cable may be pulled, twisted or squeezed, thereby causing the cores inside the cable to twist relative to the outer protective sleeve, and easily breaking the cores.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a polyvinyl chloride insulation control cable can effectively solve among the background art cable and often need stimulate when laying the process, and the cable can be dragged, distort or extrude, and then leads to the inside relative outside protective sheath distortion of sinle silk of cable, makes the cracked problem of sinle silk easily.

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

a polyvinyl chloride insulation control cable comprises a buffer sleeve and an inner liner layer, wherein the inner liner layer is arranged on the outer side of the buffer sleeve, a plurality of elastic strips are fixedly connected with the outer side of the buffer sleeve, cable cores are arranged between the elastic strips and the inner liner layer, one side of the elastic strip is provided with a first arc-shaped groove matched with the cable core, one side of the inner liner layer is provided with a second arc-shaped groove matched with the cable core, and the cable core and the second arc-shaped groove are provided with a limiting mechanism, a filling layer is arranged between the inner liner layer and the buffer sleeve, the outer side of the filling layer is provided with a braided reinforcing layer, the outer side of the braided reinforcing layer is provided with a shielding layer, a first armor layer is arranged on the outer side of the shielding layer, a flame retardant tape is arranged on the outer side of the first armor layer, the outer side of the flame-retardant belt is provided with a polyvinyl chloride outer insulating layer, and the outer side of the polyvinyl chloride outer insulating layer is provided with a polyvinyl chloride outer sheath.

Preferably, the cable core comprises a conductor, an insulating layer, a second armor layer and a buffer layer, and the insulating layer, the second armor layer and the buffer layer are sequentially arranged on the outer side of the conductor from inside to outside.

Preferably, stop gear includes that the symmetry is seted up in the spacing groove of second arc wall one side inner wall, a plurality of stoppers of the outside fixedly connected with of cable core, just the stopper is located the spacing inslot.

Preferably, an elastic filling strip is arranged in the buffer sleeve.

Preferably, a plurality of reinforcing cores are embedded in the inner liner, and the reinforcing cores are distributed annularly.

Preferably, the first arc-shaped groove and the second arc-shaped groove are both in contact with the cable core.

Compared with the prior art, the utility model discloses following beneficial effect has: the enhancement layer is woven through the setting, the shielding layer, first armor, fire-retardant area, the mating reaction of polyvinyl chloride external insulation layer and polyvinyl chloride oversheath, can be so that cable shielding signal, reach insulating purpose simultaneously, and certain fire-retardant and anti extruded effect has, through setting up the elastic strip, the inner liner, first arc wall, the second arc wall, strengthen the core, the filling layer, the mating reaction of spacing groove and stopper, the intensity of inner liner has been increased, further protection cable core, inject the position of cable core simultaneously, prevent cable core internal twisting, reduce the cracked possibility of cable core, through the mating reaction that sets up elastic strip and elastic filler, when the cable received the extrusion, through elastic strip and elastic filler elastic buffer, further avoid the cable directly to be extruded damaged.

Drawings

Fig. 1 is a schematic view of the overall structure of a polyvinyl chloride insulated control cable according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic structural view of a cable core of a polyvinyl chloride insulated control cable according to the present invention;

fig. 4 is a schematic structural view of the buffer sleeve of the polyvinyl chloride insulated control cable of the present invention.

In the figure: 1. a buffer sleeve; 2. an elastic strip; 3. an inner liner layer; 4. a cable core; 5. a first arc-shaped slot; 6. a second arc-shaped slot; 7. a reinforcing core; 8. a filling layer; 9. an elastic filler strip; 10. weaving the reinforcing layer; 11. a shielding layer; 12. a first armor layer; 13. a flame retardant tape; 14. a polyvinyl chloride outer insulating layer; 15. a polyvinyl chloride outer sheath; 16. a conductor; 17. an insulating layer; 18. a second armor layer; 19. a buffer layer; 20. a limiting groove; 21. and a limiting block.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in FIGS. 1-4, a polyvinyl chloride insulation control cable comprises a buffer sleeve 1 and an inner liner 3, the inner liner 3 is arranged outside the buffer sleeve 1, a plurality of elastic strips 2 are fixedly connected outside the buffer sleeve 1, cable cores 4 are arranged between the elastic strips 2 and the inner liner 3, a first arc-shaped groove 5 matched with the cable cores 4 is arranged on one side of each elastic strip 2, a second arc-shaped groove 6 matched with the cable cores 4 is arranged on one side of the inner liner 3, a limiting mechanism is arranged between each cable core 4 and the corresponding second arc-shaped groove 6, a filling layer 8 is arranged between the inner liner 3 and the buffer sleeve 1, a braided reinforcing layer 10 is arranged outside the filling layer 8, a shielding layer 11 is arranged outside the braided reinforcing layer 10, a first armor layer 12 is arranged outside the shielding layer 11, a flame retardant belt 13 is arranged outside the first armor layer 12, an outer polyvinyl chloride insulation layer 14 is arranged outside the flame retardant belt 13, a polyvinyl chloride outer sheath 15 is arranged on the outer side of the polyvinyl chloride outer insulating layer 14;

the cable core 4 comprises a conductor 16, an insulating layer 17, a second armor layer 18 and a buffer layer 19, and the insulating layer 17, the second armor layer 18 and the buffer layer 19 are sequentially arranged on the outer side of the conductor 16 from inside to outside; the limiting mechanism comprises limiting grooves 20 symmetrically formed in the inner wall of one side of the second arc-shaped groove 6, a plurality of limiting blocks 21 are fixedly connected to the outer sides of the cable cores 4, the limiting blocks 21 are located in the limiting grooves 20 to limit the positions of the cable cores 4, the cable cores 4 are prevented from twisting in the lining layer 3, and the possibility of breakage of the cable cores 4 is reduced; the elastic filling strip 9 is arranged in the buffer sleeve 1, and when the cable is extruded, the cable is elastically buffered through the elastic strip 2 and the elastic filling strip 9, so that the cable is further prevented from being directly extruded and damaged; a plurality of reinforcing cores 7 are embedded in the inner liner 3, and the reinforcing cores 7 are distributed annularly, so that the strength of the inner liner 3 is increased, and the cable cores 4 are further protected; the first arc-shaped groove 5 and the second arc-shaped groove 6 are both contacted with the cable core 4.

It should be noted that, the utility model relates to a polyvinyl chloride insulation control cable, when in use, through the cooperation of the braided reinforced layer 10, the shielding layer 11, the first armor layer 12, the flame retardant belt 13, the polyvinyl chloride outer insulation layer 14 and the polyvinyl chloride outer sheath 15, the cable can shield signals, and simultaneously achieve the insulation purpose, and has certain flame retardant and anti-extrusion effects, through the cooperation of the elastic strip 2, the inner liner 3, the first arc-shaped groove 5, the second arc-shaped groove 6, the reinforced core 7, the filling layer 8, the spacing groove 20 and the spacing block 21, the strength of the inner liner 3 is increased, the cable core 4 is further protected, the position of the cable core 4 is limited, the cable core 4 is prevented from twisting in the inner liner 3, the possibility of the cable core 4 breaking is reduced, through the cooperation of the elastic strip 2 and the elastic filling strip 9, when the cable is extruded, the elastic strip 2 and the elastic filling strip 9 are used for elastic buffering, so that the cable is further prevented from being directly extruded and damaged.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A polyvinyl chloride insulated control cable is characterized in that: comprises a buffer sleeve (1) and an inner liner (3), wherein the inner liner (3) is arranged on the outer side of the buffer sleeve (1), a plurality of elastic strips (2) are fixedly connected on the outer side of the buffer sleeve (1), cable cores (4) are arranged between the elastic strips (2) and the inner liner (3), a first arc-shaped groove (5) matched with the cable cores (4) is formed in one side of each elastic strip (2), a second arc-shaped groove (6) matched with the cable cores (4) is formed in one side of the inner liner (3), a limiting mechanism is arranged between each cable core (4) and the corresponding second arc-shaped groove (6), a filling layer (8) is arranged between the inner liner (3) and the buffer sleeve (1), a weaving reinforcing layer (10) is arranged on the outer side of the filling layer (8), a shielding layer (11) is arranged on the outer side of the weaving reinforcing layer (10), and a first armor layer (12) is arranged on the outer side of the shielding layer, the outer side of the first armor layer (12) is provided with a flame-retardant belt (13), the outer side of the flame-retardant belt (13) is provided with a polyvinyl chloride outer insulating layer (14), and the outer side of the polyvinyl chloride outer insulating layer (14) is provided with a polyvinyl chloride outer sheath (15).

2. The insulated control cable of claim 1, wherein: the cable core (4) comprises a conductor (16), an insulating layer (17), a second armor layer (18) and a buffer layer (19), and the insulating layer (17), the second armor layer (18) and the buffer layer (19) are sequentially arranged on the outer side of the conductor (16) from inside to outside.

3. The insulated control cable of claim 1, wherein: stop gear includes that the symmetry is seted up in spacing groove (20) of second arc wall (6) one side inner wall, a plurality of stoppers (21) of outside fixedly connected with of cable core (4), just stopper (21) are located spacing groove (20).

4. The insulated control cable of claim 1, wherein: an elastic filling strip (9) is arranged in the buffer sleeve (1).

5. The insulated control cable of claim 1, wherein: a plurality of reinforcing cores (7) are embedded in the inner liner (3), and the reinforcing cores (7) are distributed in an annular shape.

6. The insulated control cable of claim 1, wherein: the first arc-shaped groove (5) and the second arc-shaped groove (6) are both in contact with the cable core (4).