CN213400613U

CN213400613U - Environment-friendly intrinsic safety type instrument cable

Info

Publication number: CN213400613U
Application number: CN202021963990.6U
Authority: CN
Inventors: 吴俊生; 赵泽伟; 胡琴; 邓勇军; 王文友
Original assignee: Anhui Huaxing Cable Group Co Ltd
Current assignee: Anhui Huaxing Cable Group Co Ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-06-08
Anticipated expiration: 2030-09-10

Abstract

The utility model discloses an this ampere of type instrument cable of environment-friendly, its technical scheme main points are: the cable comprises a cable core, wherein the cable core is arranged inside a protection mechanism, the protection mechanism is formed by connecting a plurality of same protection sleeves end to end, each protection sleeve comprises a sleeve body and a connecting pipe, the left end of each sleeve body is provided with a first opening, the right end of each sleeve body is provided with a second opening, each connecting pipe is fixedly arranged at the corresponding first opening, the left end of each connecting pipe is fixedly provided with a convex ring, each connecting pipe and each convex ring are positioned inside the corresponding adjacent sleeve body, the outer end of each protection mechanism is provided with an insulating layer, the outer end of each insulating layer is provided with a tensile layer, the outer end of each tensile layer is provided with a metal shielding layer, and the outer end of each metal shielding layer is provided with a flame-retardant layer; and simultaneously, the utility model discloses can not produce dense cigarette, comparatively environmental protection when burning.

Description

Environment-friendly intrinsic safety type instrument cable

Technical Field

The utility model relates to an this ampere of type instrument cable technical field, in particular to this ampere of type instrument cable of environment-friendly.

Background

The cable is a conducting wire for conducting current, and is widely applied to the fields of computers, motors and the like, and the fields have high requirements on various indexes of the cable, such as the requirement on the characteristics of oxidation resistance, cold resistance, insulation, softness, magnetic interference resistance, firm and durable tensile strength and good conductivity, so that the safety can be guaranteed.

Some intrinsic safety type instrument cables are provided with a protection mechanism, and the protection mechanism can play a certain supporting role on cable cores to prevent the intrinsic safety type instrument cables from being crushed by heavy objects and generating the situations of open circuit or short circuit, but the intrinsic safety type instrument cables cannot be bent due to the existence of the protection mechanism and are inconvenient to use; meanwhile, the existing environment-friendly intrinsic safety type instrument cable generally uses PVC as an insulating material, but the PVC can generate dense smoke when burning, and is harmful to human health.

SUMMERY OF THE UTILITY MODEL

To the problem of mentioning in the background art, the utility model aims at providing an this ampere of type instrument cable of environment-friendly to mention in the solution background art because existence of supporting mechanism leads to the unable crooked and current this ampere of type instrument cable of environment-friendly to produce the problem that dense smoke endangers health when burning.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides an environment-friendly intrinsic safety type instrument cable, includes the cable core, the cable core sets up protection mechanism's inside, protection mechanism is formed by the same protective case end to end connection of a plurality of, protective case has to constitute by sleeve pipe body and connecting pipe, the left end of sleeve pipe body is provided with first opening, the right-hand member of sleeve pipe body is provided with the second opening, the connecting pipe is fixed to be set up first opening part, the left end of connecting pipe is fixed and is provided with the bulge loop, the connecting pipe with the bulge loop is located adjacently the inside of sleeve pipe body, protection mechanism's outer end is provided with the insulating layer, the outer end of insulating layer is provided with the tensile layer, the outer end on tensile layer is provided with the metallic shield layer, the outer end on metallic shield layer is provided with fire-retardant layer.

Further, fluoroplastic is arranged at the outer end of the cable core, and the thickness of the fluoroplastic is 0.5-0.7 mm.

By the technical scheme, the oxygen index of the fluoroplastic is high, the flame diffusion range is small during combustion, and the generated smoke quantity is small. The cable made of the material is suitable for places with strict requirements on flame retardance, such as computer networks, subways, vehicles, high-rise buildings and other public places, once a fire disaster occurs, people can be evacuated for a certain time without being smoked down by dense smoke, and precious rescue time is won.

Furthermore, the insulating layer is made of flame-retardant ethylene propylene rubber.

Through above-mentioned technical scheme, fire-retardant EP rubbers has excellent electrical insulation performance and corona resistance, can improve the utility model discloses an insulating properties.

Furthermore, the flame-retardant layer is made of a low-smoke halogen-free flame-retardant refractory material.

By the technical scheme, the low-smoke halogen-free flame-retardant refractory material has only light water mist and no toxic substances during combustion, is anti-aging, has a service life of more than 100 years and a maximum working temperature of 150 ℃, and has high environmental protection performance.

Furthermore, a foaming rubber pad is arranged between the adjacent protective sleeves.

Through above-mentioned technical scheme, because the cable insulation layer is extrusion molding production usually, when the existence of foaming cushion can prevent extrusion molding production, softened insulating material gets into between the protective case, and then leads to the unable crooked condition of protection mechanism to appear.

Furthermore, the diameters of the connecting pipe and the convex ring are smaller than the diameter of the protective sleeve, the diameter of the connecting pipe is smaller than the diameter of the second opening, and the diameter of the convex ring is larger than the diameter of the second opening.

Through above-mentioned technical scheme, when using, the existence of bulge loop can prevent that adjacent protective case from droing each other, and the diameter of connecting pipe is less than the diameter of second opening can ensure that protection mechanism can normally be crooked.

Furthermore, a halogen-free low-smoke glass fiber rope is filled between the cable core and the protective sleeve.

Through above-mentioned technical scheme, utilize the clearance between no steamed low cigarette glass fine rope filling cable core and the protective case, prevent that the cable core from taking place great displacement at the protective case, simultaneously, there is not steamed low cigarette glass fine rope can not produce dense cigarette yet when burning, comparatively environmental protection.

To sum up, the utility model discloses mainly have following beneficial effect: the utility model discloses in, protective case, connecting pipe and bulge loop through setting up the same end to end connection for when protecting that protection mechanism can normally be crooked, can also prevent that adjacent protective case from droing mutually, simultaneously, the utility model discloses in, through setting up fluoroplastics, fluoroplastics's oxygen index is high, and the flame spread scope is little during the burning, and the smog volume of production is few, and the insulating layer that fire-retardant EP rubbers was made has good fire behaviour, and low smoke and zero halogen fire-retardant refractory material only has light water smoke under the condition of burning, can not produce dense smoke.

Drawings

FIG. 1 is a sectional view of the present embodiment;

fig. 2 is a schematic structural view of the protection mechanism in the present embodiment.

Reference numerals: 1. a cable core; 2. a protection mechanism; 201. protecting the sleeve; 202. a sleeve body; 203. a connecting pipe; 204. a first opening; 205. a second opening; 206. a convex ring; 3. an insulating layer; 4. a tensile layer; 5. a metal shielding layer; 6. a flame retardant layer; 7. a foamed rubber cushion.

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 work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship 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 referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" 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," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, 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.

Example 1

Referring to fig. 1 and 2, an environment-friendly intrinsic safety instrument cable includes a cable core 1, the cable core 1 is disposed inside a protection mechanism 2, the protection mechanism 2 is formed by connecting a plurality of identical protection sleeves 201 end to end, the protection sleeve 201 is composed of a sleeve body 202 and a connecting pipe 203, a first opening 204 is disposed at a left end of the sleeve body 202, a second opening 205 is disposed at a right end of the sleeve body 202, the connecting pipe 203 is fixedly disposed at the first opening 204, a convex ring 206 is fixedly disposed at a left end of the connecting pipe 203, the connecting pipe 203 and the convex ring 206 are disposed inside the adjacent sleeve body 202, an insulating layer 3 is disposed at an outer end of the protection mechanism 2, a tensile layer 4 is disposed at an outer end of the insulating layer 3, a metal shielding layer 5 is disposed at an outer end of the tensile layer 4, a flame retardant layer 6 is disposed at an outer end of the metal shielding layer 5, a plurality of cable cores 1 are, cable core 1 is made for the oxygen-free copper, protection machanism 2 uses the stainless steel to make, the stainless steel has good weatherability, and simultaneously, still has higher mechanical strength, tensile layer 4 uses the fire-retardant fibre of stranded aramid fiber to weave and forms, be the tubulose, thickness is 1.5-2mm, metal shielding layer 5 uses the transposition of stranded copper wire to form, metal shielding layer 5 can shield the electromagnetism, make inside not receive outside electromagnetic interference, and inside electromagnetic energy does not transmit the outside of metal shielding layer 5 easily.

Referring to fig. 1, the outer end of the cable core 1 is provided with the fluoroplastic, and the thickness of the fluoroplastic is 0.5-0.7mm, in this embodiment, the thickness of the fluoroplastic is 0.7mm, the oxygen index of the fluoroplastic is high, the flame diffusion range during combustion is small, the amount of generated smoke is small, and the insulation property of the fluoroplastic is also good.

Referring to fig. 1, the insulating layer 3 is made of flame-retardant ethylene propylene rubber, which has excellent electrical insulating property and corona resistance.

Referring to fig. 1, the material of the flame retardant layer 6 is a low smoke halogen-free flame retardant refractory material.

Referring to fig. 1, a foam rubber pad 7 is disposed between adjacent protective sleeves 201, and the foam rubber pad 7 is made of flame retardant foam rubber and has good flame retardant performance.

Referring to fig. 2, the diameter of each of the connection pipe 203 and the convex ring 206 is smaller than that of the protection sleeve 201, the diameter of the connection pipe 203 is smaller than that of the second opening 205, and the diameter of the convex ring 206 is larger than that of the second opening 205.

Referring to fig. 1, including that there is the steamed low cigarette glass fine rope of nothing to fill between cable core 1 and protective sleeve 201, can set up the bandage of steamed low cigarette glass fine rope in steamed low cigarette glass fine rope's outer end, it is fixed to cable core 1 and steamed low cigarette glass fine rope, prevents that cable core 1 and steamed low cigarette glass fine rope from dispersing, the follow-up processing of being convenient for.

To sum up, the utility model discloses in, through protective case 201, connecting pipe 203 and the bulge loop 206 that sets up the same end-to-end connection, protective case 201, connecting pipe 203 and bulge loop 206 use the stainless steel to make for protect mechanism 2 to have higher mechanical strength, can also bend, and is comparatively convenient during the use, simultaneously, the utility model discloses in, through setting up fluoroplastics, fluoroplastics oxygen index is high, and flame diffusion scope is little during the burning, and the smog volume of production is few, and insulating layer 3 that flame retardant ethylene propylene rubber made has good fire behaviour, and fire-retardant layer 6 and the steamed low smoke glass fiber rope that low smoke and zero halogen fire-retardant refractory material made can not produce dense smoke under the condition of burning, comparatively environmental protection.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an this ampere of type instrument cable of environment-friendly, includes cable core (1), its characterized in that: the cable core (1) is arranged in the protection mechanism (2), the protection mechanism (2) is formed by connecting a plurality of identical protection sleeves (201) end to end, each protection sleeve (201) consists of a sleeve body (202) and a connecting pipe (203), a first opening (204) is formed in the left end of each sleeve body (202), a second opening (205) is formed in the right end of each sleeve body (202), each connecting pipe (203) is fixedly arranged at the position of the corresponding first opening (204), a convex ring (206) is fixedly arranged at the left end of each connecting pipe (203), each connecting pipe (203) and each convex ring (206) are located in the adjacent sleeve body (202), an insulating layer (3) is arranged at the outer end of each protection mechanism (2), a tensile layer (4) is arranged at the outer end of each insulating layer (3), and a metal shielding layer (5) is arranged at the outer end of each tensile layer (4), and the outer end of the metal shielding layer (5) is provided with a flame-retardant layer (6).

2. The environment-friendly intrinsic safety type instrument cable according to claim 1, characterized in that: the outer end of the cable core (1) is provided with fluoroplastic, and the thickness of the fluoroplastic is 0.5-0.7 mm.

3. The environment-friendly intrinsic safety type instrument cable according to claim 1, characterized in that: the insulating layer (3) is made of flame-retardant ethylene propylene rubber.

4. The environment-friendly intrinsic safety type instrument cable according to claim 1, characterized in that: the flame-retardant layer (6) is made of a low-smoke halogen-free flame-retardant refractory material.

5. The environment-friendly intrinsic safety type instrument cable according to claim 1, characterized in that: and a foaming rubber pad (7) is arranged between the adjacent protective sleeves (201).

6. The environment-friendly intrinsic safety type instrument cable according to claim 1, characterized in that: the diameter of the connecting pipe (203) and the diameter of the convex ring (206) are both smaller than that of the protective sleeve (201), the diameter of the connecting pipe (203) is smaller than that of the second opening (205), and the diameter of the convex ring (206) is larger than that of the second opening (205).

7. The environment-friendly intrinsic safety type instrument cable according to claim 1, characterized in that: the cable is characterized in that a halogen-free low-smoke glass fiber rope is filled between the cable core (1) and the protective sleeve (201).