CN111276286A - Anti-compression anti-static coal mine cable - Google Patents
Anti-compression anti-static coal mine cable Download PDFInfo
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- CN111276286A CN111276286A CN202010064531.2A CN202010064531A CN111276286A CN 111276286 A CN111276286 A CN 111276286A CN 202010064531 A CN202010064531 A CN 202010064531A CN 111276286 A CN111276286 A CN 111276286A
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- bag
- base
- compression
- outer cladding
- coal mine
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/08—Flat or ribbon cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- Insulated Conductors (AREA)
Abstract
The invention relates to the field of cables and discloses a compression-resistant anti-static coal mine cable which comprises a wire core (1) and an outer cladding (2), wherein a base (3) is installed at the lower part of the inner cavity of the outer cladding (2), elastic pressing strips (32) are respectively installed at the left side and the right side of the base (3), a buffer bag (4) is installed at the upper part of the inner cavity of the outer cladding (2), the buffer bag (4) comprises an upper bag (41) and a side bag (42), a buffer solution (40) is placed in the upper bag (41), and the side bag (42) is embedded between the elastic pressing strips (32) and the outer cladding (2). The invention adopts the design of the buffer bag, so that the pressure can be dispersed to the left and right sides when the cable is stressed, and the external pressure is prevented from directly acting on the wire core; in addition, the protective layer and the insulating layer can effectively prevent static electricity, and the special fiber woven layer is formed by weaving antistatic special fibers, so that the cable has the performance of resisting high-strength impact force.
Description
Technical Field
The invention relates to the field of cables, in particular to a compression-resistant anti-static coal mine cable.
Background
The cable includes power cable, compression-resistant 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.
In some environments without cables, such as construction sites, the cables are easily broken by rolling by passing vehicles, and the breaking mechanism of the cables is analyzed. Meanwhile, a part of the cable is broken due to the fact that sharp objects such as stones exist at the lower part of the cable, and when the automobile is rolled, the stones penetrate into the cable to cause the cable to break.
The cable is generally a cable similar to a rope formed by stranding a plurality of or a plurality of groups of wire cores, each group of wire cores are mutually insulated, the whole outer surface is coated with a highly-insulated covering layer, and at present, the insulation resistance of the surface of a sheath layer of the existing cable is more than 8.9 x 109Ohm is easy to generate static electricity, and the static electricity is easy to generate under the environment of inflammable and explosive gas and dust, so that local explosion is caused, and many factors are unsafe.
At present, the invention patent with patent number 201210537464.7, named as pressure-resistant cable, changes the cross section of the cable from a round structure to a flat or oval structure, and the internal conductor main lines are arranged in a line on the same horizontal plane, so that when the cable is rolled by a heavy object, the insulating jackets outside the conductor main lines are not interfered with each other and not extruded with each other, thereby reducing the destructive power and increasing the pressure-resistant capability; the cable main line is changed from a common stranded wire structure to a braided structure, so that the cable main line is more elastic, and a braided layer is not arranged outside the cable main line, so that the cable main line is more favorable for the conductor to restore to the original state after being rolled; the insulating outer sleeve outside the conductor is made of ethylene propylene rubber, and the outermost sheath of the cable is made of a high-elasticity, high-wear-resistance, high-temperature and low-temperature resistant irradiation foaming crosslinked polyethylene material, so that the overall elasticity of the cable is further improved, and the conductor can be more favorably restored to the original shape; the thickness of the insulating outer sleeve of the conductor at the middle of the three-core cable is increased by more than 20 percent compared with the thickness of the insulating outer sleeves of the adjacent conductors at two sides, on one hand, the thickness of the insulating outer sleeve of the conductor at the middle of the three-core cable caters to the overall flat shape of the cable, on the other hand, the restorability of the cable can be enhanced, the problem of partial pressure resistance is solved, and the defect of uneven pressure dispersion is also existed.
Disclosure of Invention
The invention provides a compression-resistant anti-static coal mine cable aiming at the defects of poor compression resistance and easy generation of static in the prior art.
In order to solve the technical problem, the invention is solved by the following technical scheme:
the anti-compression anti-static coal mine cable comprises a wire core and an outer cladding layer wrapped outside the wire core, wherein the cross section of the outer cladding layer is of a flat annular structure, an elastic base is installed at the lower part of an inner cavity of the outer cladding layer, a wire groove is formed in the upper surface of the base, the outer surface of the wire core is matched with the wire groove and is installed in the wire groove, elastic pressing strips are respectively installed on the left side and the right side of the base, the elastic pressing strips are arc-shaped strips, the elastic pressing strips are attached to the inner walls of the left side and the right side of the outer cladding layer, outward pressing force is applied to the outer cladding layer, an elastic buffer bag is installed on the upper portion of an inner cavity of the outer cladding layer, the buffer bag comprises an upper bag and a side bag communicated with the upper bag, the upper bag is located right above the base, the side bag is divided into the left side and the right side of the upper bag, buffer solution is placed in the upper bag, the side bag is embedded between the elastic pressing strips and the outer cladding layer, and partial buffer solution in.
Preferably, the side bags are uniformly arranged on the left side and the right side of the upper bag, a channel is connected between the side bags and the upper bag, a channel is connected between the side bags on the same side, the diameter of the channel is 2 mm-4 mm, the sum of the volumes of the side bags is less than or equal to two thirds of the volume of the upper bag, and the sum of the volumes of the side bags is more than or equal to one third of the volume of the upper bag.
Preferably, the lower surface of the upper bag is provided with an arc-shaped groove matched with the wire core.
Preferably, still include the backup pad, the backup pad has a plurality ofly and evenly distributed in the base, and the length of every backup pad is 35mm ~ 85mm, and the backup pad includes integrated into one piece's diaphragm and arc board, and the arc board has two and is located the diaphragm left and right sides, and the diaphragm level is inlayed and is established in the base, and the arc board is upwards buckled, and the cladding has the rubber layer on the arc board, and arc board and rubber layer form the elastic pressing strip.
Preferably, the rubber layer is provided with a plurality of anti-skid projections on the side contacting with the outer cladding layer.
Preferably, the wire core is distributed in an arc on the base, and the base is a rubber base.
Preferably, the wire core is sequentially wrapped with a protective layer and an insulating layer.
Preferably, the protective layer comprises chloroprene rubber raw material, conductive carbon black, copper powder, graphite, magnesium hydride small material and zinc oxide.
Preferably, the insulating layer is woven from high strength, high modulus, ultra high molecular weight antistatic fibers.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that: the design of the buffer bag is adopted, so that when the cable is stressed, the pressure can be dispersed to the left side and the right side, and the external pressure is prevented from directly acting on the wire core; in addition, the protective layer and the insulating layer can effectively prevent static electricity from being generated, so that the danger of explosion caused by electric sparks generated by the static electricity can be effectively avoided, and the special fiber braided layer is formed by braiding high-strength, high-modulus and ultrahigh molecular weight antistatic special fibers, so that the cable has the performance of resisting high-strength impact force.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partially enlarged view of fig. 1.
Fig. 3 is a schematic structural view of the wire core, the protective layer and the insulating layer of fig. 1.
The names of the parts indicated by the numerical references in the drawings are as follows: 1-wire core, 2-outer cladding, 3-base, 4-buffer bag, 5-protective layer, 6-insulating layer, 31-wire groove, 32-elastic strip, 33-supporting plate, 321-rubber layer, anti-skid projection, 331-transverse plate, 332-arc plate, 40-buffer solution, 41-upper bag, 42-side bag, 43-channel and 44-arc groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
A compression-resistant anti-static coal mine cable comprises a wire core 1 and an outer cladding 2 wrapped outside the wire core 1, wherein the cross section of the outer cladding 2 is of a flat annular structure, an elastic base 3 is installed at the lower part of the inner cavity of the outer cladding 2, a wire groove 31 is formed in the upper surface of the base 3, the outer surface of the wire core 1 is matched with the wire groove 31 and installed in the wire groove 31, elastic pressing strips 32 are installed on the left side and the right side of the base 3 respectively, the elastic pressing strips 32 are arc-shaped strips, the elastic pressing strips 32 are attached to the inner walls of the left side and the right side of the outer cladding 2 and apply outward pressing force to the outer cladding 2, an elastic buffer bag 4 is installed at the upper part of the inner cavity of the outer cladding 2, the buffer bag 4 comprises an upper bag 41 and a side bag 42 communicated with the upper bag 41, the upper bag 41 is located right above the base 3, the side bag 42 is located on the left, part of the buffer liquid 40 in the side bag 42 is squeezed by the elastic pressing strip 43 and drained into the upper bag 41.
The side bags 42 are arranged on the left side and the right side of the upper bag 41 uniformly, a channel 43 is connected between the side bags 42 and the upper bag 41, the channel 43 is connected between the side bags 42 on the same side, the diameter of the channel 43 is 2.5mm, the sum of the volumes of the side bags 42 is less than or equal to two thirds of the volume of the upper bag 41, and the sum of the volumes of the side bags 42 is more than or equal to one third of the volume of the upper bag 41.
The lower surface of the upper pocket 41 is provided with an arc-shaped groove 44 for fitting the wire core 1.
The power that the cable received is when being located subaerial mostly, and the external downward pressure of applying, consequently to this kind of condition, has designed the cable structure of flat type, and when outer cladding 2 received pressure, outer cladding 2 can not directly transmit the effort for sinle silk 1, but cushions through buffer band 4.
Under the condition that the buffer belt 4 is not stressed, due to the joint action force of the elastic pressing strip 32 and the outer cladding 2, the side bags 42 positioned at the left side and the right side are extruded by the elastic pressing strip 32 and extrude most of buffer solution 40 into the upper bag 41, the upper bag 41 is filled with the buffer solution 40 at the moment, and the upper bag 41 forms a natural buffer protection layer and is positioned above the wire core 1.
When the outer cover 2 is pressed downward, the buffer solution 40 in the upper bag 41 is squeezed into the side bags 42, and during the flowing process of the buffer solution 40, the buffer solution 40 buffers partial pressure and transmits the pressure to the left and right sides, and the side bags 42 are filled with the buffer solution 40 and then form balance with the elastic force of the elastic pressing strips 32.
Example 2
The same as embodiment 1, the difference is that the elastic pressing strip further comprises a supporting plate 33, the supporting plate 33 is provided with a plurality of supporting plates 33 which are uniformly distributed in the base 3, the length of each supporting plate 33 is 50mm, each supporting plate 33 comprises a transverse plate 331 and an arc plate 332 which are integrally formed, the arc plates 332 are provided with two blocks and located on the left side and the right side of the transverse plate 331, the transverse plate 331 is horizontally embedded in the base 3, the arc plates 332 are bent upwards, the arc plates 332 are coated with a rubber layer 321, and the arc plates 332 and the rubber layer 321 form the elastic pressing strip.
The supporting plate 33 is made of a mashable metal material, the horizontal plate 331 serves to prevent the deformation of the base 3, and the arc plate 332 serves to prevent the deformation of the elastic pressing strip 32.
The rubber layer 321 is provided with a plurality of anti-skid projections at one side contacting with the outer cladding layer 2.
The sinle silk 1 distributes at base 3 epicycloid, and base 3 is the rubber foundation.
The horizontal plane at the sinle silk 1 place of the 3 left and right sides of base is less than the horizontal plane at the sinle silk 1 place that is located on 3 central lines of base, therefore sinle silk 1 on the base 3 is the bellied pitch arc distribution that makes progress.
The cable core 1 is sequentially wrapped with a protective layer 5 and an insulating layer 6.
Example 3
The same as in example 1, except that the diameter of the channel 43 was 3.5 mm.
Example 4
The same as in embodiment 1 except that the length of each support plate 33 is 60 mm.
Example 5
The same as in example 1, except that the protective layer 5 comprises chloroprene rubber raw material, conductive carbon black, copper powder, graphite, magnesium hydride small material, zinc oxide.
Example 6
The same as in example 1, except that the insulating layer 6 was knitted with a high-strength, high-modulus, ultra-high molecular weight antistatic fiber.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (9)
1. Static coal mine cable is prevented in resistance to compression, including sinle silk (1) and parcel surrounding layer (2) outside sinle silk (1), its characterized in that: the section of the outer cladding (2) is of a flat annular structure, an elastic base (3) is installed on the lower portion of the inner cavity of the outer cladding (2), a wire slot (31) is formed in the upper surface of the base (3), the outer surface of the wire core (1) is matched with the wire slot (31) and installed in the wire slot (31), elastic pressing strips (32) are installed on the left side and the right side of the base (3) respectively, the elastic pressing strips (32) are attached to the inner walls of the left side and the right side of the outer cladding (2) and apply outward pressing force to the outer cladding (2), an elastic buffer bag (4) is installed on the upper portion of the inner cavity of the outer cladding (2), the buffer bag (4) comprises an upper bag (41) and a side bag (42) communicated with the upper bag (41), the upper bag (41) is located right above the base (3), the side bag (42) is located on the left side and the right side, the side bag (42) is embedded between the elastic pressing strip (32) and the outer cladding (2), part of buffer solution (40) in the side bag (42) is squeezed by the elastic pressing strip (32) and drained into the upper bag (41), the sum of the volumes of the side bag (42) is less than or equal to two thirds of the volume of the upper bag (41), and the sum of the volumes of the side bag (42) is greater than or equal to one third of the volume of the upper bag (41).
2. The compression-resistant anti-static coal mine cable according to claim 1, wherein: the side bags (42) are uniformly arranged on the left side and the right side of the upper bag (41), a channel (43) is connected between the side bags (42) and the upper bag (41), the channel (43) is connected between the side bags (42) on the same side, and the diameter of the channel (43) is 2 mm-4 mm.
3. The compression-resistant anti-static coal mine cable according to claim 1, wherein: the lower surface of the upper bag (41) is provided with an arc-shaped groove (44) matched with the wire core (1).
4. The compression-resistant anti-static coal mine cable according to claim 1, wherein: still include backup pad (33), backup pad (33) have a plurality ofly and evenly distributed in base (3), the length of every backup pad (33) is 35mm ~ 85mm, backup pad (33) include integrated into one piece's diaphragm (331) and arc board (332), arc board (332) have two and are located diaphragm (331) left and right sides, diaphragm (331) level inlays to be established in base (3), arc board (332) are upwards buckled, the cladding has rubber layer (321) on arc board (332), arc board (332) and rubber layer (321) form elastic pressing strip (32).
5. The compression-resistant anti-static coal mine cable according to claim 4, wherein: a plurality of anti-skid projections are arranged on one side of the rubber layer (321) contacted with the outer cladding layer (2).
6. The compression-resistant anti-static coal mine cable according to claim 1, wherein: the wire cores (1) are distributed on the base (3) in an arc line, and the base (3) is a rubber base.
7. The compression-resistant anti-static coal mine cable according to claim 1, wherein: the wire core (1) is sequentially wrapped with a protective layer (5) and an insulating layer (6).
8. The compression-resistant anti-static coal mine cable according to claim 1, wherein: the protective layer (5) comprises chloroprene rubber raw materials, conductive carbon black, copper powder, graphite, magnesium hydride small materials and zinc oxide.
9. The compression-resistant anti-static coal mine cable according to claim 1, wherein: the insulating layer (6) is woven from antistatic fibres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010064531.2A CN111276286B (en) | 2020-01-20 | 2020-01-20 | Anti-compression anti-static coal mine cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010064531.2A CN111276286B (en) | 2020-01-20 | 2020-01-20 | Anti-compression anti-static coal mine cable |
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| CN111276286A true CN111276286A (en) | 2020-06-12 |
| CN111276286B CN111276286B (en) | 2021-10-22 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58102906A (en) * | 1981-12-16 | 1983-06-18 | Nippon Telegr & Teleph Corp <Ntt> | Multicored optical fiber core |
| CN208157137U (en) * | 2018-05-02 | 2018-11-27 | 扬州曙光电缆股份有限公司 | A kind of imperial No.1 nuclear power station harsh environment thermocouple cable of China |
| CN208673751U (en) * | 2018-08-08 | 2019-03-29 | 天津市尚德电缆科技有限公司 | A kind of novel ruggedized cable |
| CN209657861U (en) * | 2019-05-27 | 2019-11-19 | 浙江中大元通特种电缆有限公司 | A kind of cable that compressive property is good |
-
2020
- 2020-01-20 CN CN202010064531.2A patent/CN111276286B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58102906A (en) * | 1981-12-16 | 1983-06-18 | Nippon Telegr & Teleph Corp <Ntt> | Multicored optical fiber core |
| CN208157137U (en) * | 2018-05-02 | 2018-11-27 | 扬州曙光电缆股份有限公司 | A kind of imperial No.1 nuclear power station harsh environment thermocouple cable of China |
| CN208673751U (en) * | 2018-08-08 | 2019-03-29 | 天津市尚德电缆科技有限公司 | A kind of novel ruggedized cable |
| CN209657861U (en) * | 2019-05-27 | 2019-11-19 | 浙江中大元通特种电缆有限公司 | A kind of cable that compressive property is good |
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| CN111276286B (en) | 2021-10-22 |
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Effective date of registration: 20220513 Address after: 310000 Room 215, building 1, Huanxi new village, Xiacheng District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Zhongda Yuantong Cable Technology Co.,Ltd. Address before: 310000 lujiaqiao, Chongxian Town, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG YUANTONG CABLE MANUFACTURE Co.,Ltd. |