CN212392032U

CN212392032U - Explosion-proof cable based on coal mine environment

Info

Publication number: CN212392032U
Application number: CN202020809343.3U
Authority: CN
Inventors: 李安政
Original assignee: Shenyang Tianying General Equipment Co ltd
Current assignee: Shenyang Tianying General Equipment Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-01-22
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses an explosion-proof cable based on coal mine environment relates to explosion-proof cable technical field. The utility model discloses an insulation core, insulation core outside cover is equipped with sinle silk fixed knot structure, and sinle silk fixed knot constructs the surface parcel and has had the mineral insulation filling layer, and the outer surface parcel of mineral insulation filling layer has outer fire-retardant layer, and outer fire-retardant layer surface parcel has the steel sheathing, and the steel sheathing surface mounting has solid fixed ring; the wire core fixing structure comprises a plurality of sleeves matched with the insulated wire cores, the sleeves are fixedly connected through an inner support, and a drainage hole is formed in the position, located at the center of the inner support, on the inner support. The utility model discloses play the effect of fixed stay to insulating core, adjust after can regular inspection, avoid appearing the inside filler of cable in long-term use and use for a long time and take place to warp, and the problem of skew takes place easily for the cable inner conductor that leads to, guarantees the life and the quality of cable.

Description

Explosion-proof cable based on coal mine environment

Technical Field

The utility model belongs to the technical field of the explosion-proof cable, especially, relate to an explosion-proof cable based on coal mine environment is down.

Background

Cables are generally rope-like cables made by stranding several or groups of conductors (at least two in each group), each group being insulated from each other and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like. The derivation/new product of the electric wire and the cable is mainly generated by adopting new materials and special materials, changing the structure of the product, improving the process requirements, or combining different products due to different application occasions and application requirements, convenience of equipment, reduction of equipment cost and the like. The wire and cable are made up by processing conductor, and adding insulation, shielding, cabling and protective layer by layer on the periphery of conductor. The more complex the product structure, the more levels are superimposed.

Explosion-proof flexible cable on the existing market has some defects when using, and the oversheath protective measure of cable is not good, uses for a long time and breaks or excessive wearing and tearing easily take place, leads to cable life to shorten, and the inside filler of cable uses for a long time and takes place to warp easily, leads to the easy emergence skew of cable inner conductor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an explosion-proof cable based on under the coal mine environment has solved the problem of mentioning among the above-mentioned background art.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to an explosion-proof cable based on coal mine environment, including the insulation core, insulation core outside cover is equipped with sinle silk fixed knot structure, sinle silk fixed knot structure surface parcel has the mineral insulation filling layer, the outer surface parcel of mineral insulation filling layer has outer flame retardant coating, the outer surface parcel of outer flame retardant coating has the steel sheath, the steel sheath surface is fixed with solid fixed ring; the cable core fixing structure comprises a plurality of sleeves matched with the insulated cable core, the sleeves are fixedly connected through an inner support, and a drainage hole is formed in the position, located at the center of the inner support, on the inner support; a limiting block clamped with the outer flame-retardant layer is fixed on the outer surface of the sleeve; a fastening structure which sequentially penetrates through the outer flame-retardant layer and the mineral insulation filling layer from outside to inside and is matched with the inner support is fixed on the steel sheath; the fastening structure comprises a buffer sleeve fixedly connected with the steel sheath, an adjusting plate matched with the inner cavity of the buffer sleeve is connected to the inner portion of the buffer sleeve in a threaded manner, a limiting plate is movably arranged at the inner bottom of the buffer sleeve, a spring is filled in the buffer sleeve at a position between the limiting plate and the adjusting plate, and a guide rod penetrating through the buffer sleeve is fixed on the limiting plate; one end of the guide rod, which is positioned outside the buffer sleeve, is rotatably connected with a fastening block matched with the inner support.

Furthermore, the insulating wire core comprises a tensile layer matched with the inner cavity of the sleeve, an inner insulating layer is fixed inside the tensile layer, and a conductive core is fixed inside the inner insulating layer.

Furthermore, the fixing ring is in threaded connection with a limiting bolt which sequentially penetrates through the steel sheath, the outer flame-retardant layer and the mineral insulation filling layer from outside to inside and is fixedly connected with the limiting block.

Furthermore, one end of the buffer sleeve is provided with an adjusting hole communicated with the inner cavity of the buffer sleeve, and the steel sheath is provided with a through hole matched with the adjusting hole.

Furthermore, a clamping groove matched with the limiting block is formed in the inner surface of the outer flame-retardant layer, and a threaded hole matched with the limiting bolt is formed in the limiting block.

Furthermore, an electrostatic drainage core wire is fixed inside the drainage hole.

The utility model discloses following beneficial effect has:

1. the utility model discloses a sinle silk fixed knot constructs, outer flame retardant coating, steel sheath, solid fixed ring and spacing bolt's combination use, plays the effect of fixed stay to insulating sinle silk, carries out the adjustment after can regular inspection, avoids appearing the inside filler of cable and using for a long time and take place to warp in long-term use, and the problem of skew takes place easily for the cable inner conductor that leads to, guarantees the life and the quality of cable.

2. The utility model discloses an outer fire-retardant layer, steel sheath, solid fixed ring's combination is used, and the apparent structural strength and the tensile strength of reinforcing cable improve wear resistance, guarantee the life of cable.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the coal mine explosion-proof cable of the present invention;

FIG. 2 is a schematic view of the fastening structure;

fig. 3 is a schematic structural view of a wire core fixing structure.

In the drawings, the components represented by the respective reference numerals are listed below:

1-insulated wire core, 2-wire core fixing structure, 201-sleeve, 202-inner support, 203-drainage hole, 204-limiting block, 3-mineral insulating filling layer, 4-outer flame-retardant layer, 5-steel sheath, 6-fixing ring, 7-fastening structure, 701-buffer sleeve, 702-adjusting plate, 703-limiting plate, 704-spring, 705-guide rod, 706-fastening block, 707-adjusting hole, 8-limiting bolt and 9-electrostatic drainage core wire.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the utility model relates to an explosion-proof cable based on coal mine environment, which comprises an insulated wire core 1, the insulated wire core 1 comprises a tensile layer matched with the inner cavity of a sleeve 201, an inner insulating layer is fixed in the tensile layer, a conductive core is fixed in the inner insulating layer, a wire core fixing structure 2 is sleeved outside the insulated wire core 1, the outer surface of the wire core fixing structure 2 is wrapped with a mineral insulating filling layer 3, the outer surface of the mineral insulating filling layer 3 is wrapped with an outer flame-retardant layer 4, the inner surface of the outer flame-retardant layer 4 is provided with a clamping groove matched with a limiting block 204, the limiting block 204 is provided with a threaded hole matched with a limiting bolt 8, the outer surface of the outer flame-retardant layer 4 is wrapped with a steel sheath 5, the outer surface of the steel sheath 5 is fixed with a fixing ring 6, the fixing ring 6 is in, the mineral insulation filling layer 3 is fixedly connected with the limiting block 204 through the limiting bolt 8.

The wire core fixing structure 2 comprises a plurality of sleeves 201 matched with the insulated wire core 1, the sleeves 201 are fixedly connected through an inner support 202, a drainage hole 203 is formed in the position, located at the center of the inner support 202, a static drainage core wire 9 is fixed inside the drainage hole 203, and the static drainage core wire 9 is used for guiding and reducing static charges.

And a limiting block 204 clamped with the outer flame-retardant layer 4 is fixed on the outer surface of the sleeve 201.

The steel sheath 5 is fixed with a fastening structure 7 which sequentially penetrates through the outer flame-retardant layer 4 and the mineral insulation filling layer 3 from outside to inside and is matched with the inner support 202.

Fastening structure 7 includes the cushion collar 701 with 5 fixed connection of steel sheath, the regulation hole 707 with the inner chamber intercommunication of cushion collar 701 is seted up to cushion collar 701 one end, set up on the steel sheath 5 with regulation hole 707 complex through hole, the inside threaded connection of cushion collar 701 has with cushion collar 701 inner chamber complex regulating plate 702, the bottom activity is provided with limiting plate 703 in the cushion collar 701, inside and the position that is located between limiting plate 703 and the regulating plate 702 of cushion collar 701 is filled there is spring 704, be fixed with the guide arm 705 that runs through cushion collar 701 on the limiting plate 703.

The end of the guide rod 705 outside the buffer sleeve 701 is rotatably connected with a fastening block 706 which is matched with the inner bracket 202.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides an explosion-proof cable based on coal mine environment under, includes insulating sinle silk (1), its characterized in that: the cable core fixing structure is characterized in that a cable core fixing structure (2) is sleeved outside the insulated cable core (1), a mineral insulated filling layer (3) is wrapped on the outer surface of the cable core fixing structure (2), an outer flame-retardant layer (4) is wrapped on the outer surface of the mineral insulated filling layer (3), a steel sheath (5) is wrapped on the outer surface of the outer flame-retardant layer (4), and a fixing ring (6) is fixed on the outer surface of the steel sheath (5);

the wire core fixing structure (2) comprises a plurality of sleeves (201) matched with the insulated wire core (1), the sleeves (201) are fixedly connected through an inner support (202), and a drainage hole (203) is formed in the position, located at the center of the inner support (202), on the inner support (202);

a limiting block (204) clamped with the outer flame-retardant layer (4) is fixed on the outer surface of the sleeve (201);

a fastening structure (7) which sequentially penetrates through the outer flame-retardant layer (4) and the mineral insulation filling layer (3) from outside to inside and is matched with the inner support (202) is fixed on the steel sheath (5);

the fastening structure (7) comprises a buffer sleeve (701) fixedly connected with the steel sheath (5), an adjusting plate (702) matched with an inner cavity of the buffer sleeve (701) is connected to the inner portion of the buffer sleeve (701) in a threaded manner, a limiting plate (703) is movably arranged at the bottom of the buffer sleeve (701), a spring (704) is filled in the buffer sleeve (701) and in a position between the limiting plate (703) and the adjusting plate (702), and a guide rod (705) penetrating through the buffer sleeve (701) is fixed on the limiting plate (703);

one end of the guide rod (705) positioned outside the buffer sleeve (701) is rotatably connected with a fastening block (706) matched with the inner support (202).

2. The explosion-proof cable based on the coal mine environment as claimed in claim 1, wherein the insulated wire core (1) comprises a tensile layer matched with the inner cavity of the sleeve (201), an inner insulating layer is fixed inside the tensile layer, and a conductive core is fixed inside the inner insulating layer.

3. The explosion-proof cable based on the coal mine environment as claimed in claim 1, wherein the fixing ring (6) is in threaded connection with a limiting bolt (8) which sequentially penetrates through the steel sheath (5), the outer flame-retardant layer (4) and the mineral insulation filling layer (3) from outside to inside and is fixedly connected with the limiting block (204).

4. The explosion-proof cable based on the coal mine environment as claimed in claim 3, wherein one end of the buffer sleeve (701) is provided with an adjusting hole (707) communicated with the inner cavity of the buffer sleeve (701), and the steel sheath (5) is provided with a through hole matched with the adjusting hole (707).

5. The explosion-proof cable based on the coal mine environment as claimed in claim 1, wherein the inner surface of the outer flame-retardant layer (4) is provided with a clamping groove matched with the limiting block (204), and the limiting block (204) is provided with a threaded hole matched with the limiting bolt (8).

6. The explosion-proof cable based on the coal mine environment as claimed in claim 1, wherein the static drainage core wire (9) is fixed inside the drainage hole (203).