CN110047618B - Composite direct-buried cable - Google Patents
Composite direct-buried cable Download PDFInfo
- Publication number
- CN110047618B CN110047618B CN201910429879.4A CN201910429879A CN110047618B CN 110047618 B CN110047618 B CN 110047618B CN 201910429879 A CN201910429879 A CN 201910429879A CN 110047618 B CN110047618 B CN 110047618B
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- CN
- China
- Prior art keywords
- piece
- arch
- connecting piece
- sides
- pieces
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002131 composite material Substances 0.000 title claims abstract description 8
- 230000003139 buffering effect Effects 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000010008 shearing Methods 0.000 abstract description 30
- 230000001012 protector Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
-
- 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
- H01B7/185—Sheaths comprising internal cavities or channels
-
- 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
- H01B7/189—Radial force absorbing layers providing a cushioning effect
Landscapes
- Supports For Pipes And Cables (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The invention discloses a composite direct-buried cable which comprises an outer tegument, wherein a hollow cavity is formed in the outer tegument, more than one protecting piece is arranged in the hollow cavity at intervals, the more than one protecting piece is of a circular structure formed by splicing more than one arch piece and more than one connecting piece, two adjacent arch pieces are connected through one connecting piece, the middle part of the connecting piece is outwards unfolded through the arch pieces on two sides, a rebound force is applied to the arch pieces on two sides through the unfolded connecting piece, two sides of an arc-shaped convex surface of each arch piece are respectively provided with a core wire, the core wires are respectively arranged on one side close to the connecting piece, the outer convex surface of each arch piece is respectively provided with a buffering positioning part, and the buffering positioning parts are positioned between the two core wires and are in positioning contact with the inner wall of. The cable structure has very shear resistance, and after being sheared, all core wires can move towards the direction far away from the shearing force, so that the shear resistance is improved while the shearing is avoided.
Description
Technical Field
The invention relates to a cable, in particular to a composite direct-buried cable.
Background
The directly buried cable is buried in the ground, and the external part of the cable is not provided with an armor layer, so the shearing resistance of the cable is poor, and if the cable is cut off, serious economic influence can be caused, and troubles are caused for a large number of enterprises. Therefore, the shear resistance of the directly buried cable is required to be high. Therefore, in order to protect the circuit, the technicians at present set up more anti-shearing structures in the cable, but whatever structure, can only resist the shearing for a moment, when receiving the shearing, the core wire position is motionless, can not avoid the shearing, once the protection piece is destroyed, the core wire is destroyed immediately, does not have secondary protection structure, so its anti-shearing effect is not good when actually using.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a composite direct-buried cable, which adopts a multilayer protection mode, can realize the avoidance and shearing of core wires when being sheared, can better protect the core wires and solves the safety problem of the cable in the prior art.
The invention is realized by the following technical scheme: the utility model provides a compound direct-buried cable, includes an outer tegument, outer tegument inside has a cavity, cavity intracavity interval is provided with more than one protection piece, and more than one protection piece is by the circular structure that more than one arch piece and more than one connecting piece concatenation are constituteed, all connects through a connecting piece between two adjacent arch pieces, department outwards struts through the arch piece of both sides and applys a bounce-back to the arch piece of both sides through the connecting piece that struts in the middle of the connecting piece, and the arc convex surface both sides of every arch piece all set up a heart yearn, and the heart yearn all sets up in being close to connecting piece one side, all sets up a buffering location portion on the outside convex surface of arch piece, and buffering location portion is located between two strands of heart yearns to with.
Preferably, the arched pieces are three and equally divide the whole protection piece, and the whole protection piece is arranged in the hollow cavity of the outer tegument in a three-point positioning mode through the buffering positioning part.
According to the preferable technical scheme, two side faces of each arched sheet are arc-shaped assembling convex faces, two side faces of each connecting piece are arc-shaped assembling concave faces, and two sides of each arched sheet are positioned in the arc-shaped assembling concave faces of the connecting pieces and are bonded and fixed through the strong glue.
According to the preferable technical scheme, the arch pieces are made of elastic metal shifting pieces or elastic plastic materials, the buffering and positioning portions are conical and made of elastic metal thin sheets, and two sides of the buffering and positioning portions are respectively inserted into slots in the outer sides of the arch pieces and are adhered and fixed with the arch pieces through glue.
As a preferred technical scheme, the connecting piece adopts a memory metal piece, one side of an arc concave surface of the connecting piece is provided with a notch, the inner wall surfaces of the notches are mutually contacted when the connecting piece is in a natural state, and the notches on the connecting piece are elastically expanded by the arc pieces at two sides.
Preferably, the distance between the protecting member and the protecting member is 5-8 cm.
As the preferred technical scheme, the outer side surface of the arch piece and the arch piece integrated core wire fixing sleeve are respectively provided with a core wire fixing cavity, and the core wire is fixedly clamped in the core wire fixing cavity.
The invention has the beneficial effects that: when the top of the protector is sheared, firstly, buffering is carried out through buffering positioning until the arched sheet is separated from the connecting piece, and then a large amount of shearing force can be absorbed in the process, and when the arched sheet at the top is sheared and separated from the protector body, the arched sheet can enter the protector body to be secondarily sheltered from protection;
after the top arch pieces are separated, in the process of pressing down, the arch pieces on the two sides can be contacted for the second time, the arch pieces on the side surfaces are used for carrying out secondary anti-shearing protection, and the core wires on the arch pieces on the side surfaces can be turned towards the outer side and are far away from a shearing source, so that the core wires can be better kept away from shearing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic diagram of the sheared structure of the protector of the present invention.
Detailed Description
As shown in fig. 1 and fig. 2, the composite direct-buried cable comprises a tegument 3, a hollow cavity 1 is arranged inside the tegument 3, more than one protection piece is arranged in the hollow cavity 1 at intervals, a protection cavity 8 is formed in the middle of the protection piece, more than one protection piece is of a circular structure formed by splicing more than one arch piece 7 and more than one connecting piece 2, two adjacent arch pieces 7 are connected through one connecting piece 2, the middle part of the connecting piece 2 is outwards unfolded through the arch pieces 7 on two sides and exerts an elastic force on the arch pieces 7 on two sides through the unfolded connecting piece 2, two sides of the arc convex surface of each arch piece 7 are respectively provided with a core wire 4, the core wires 4 are respectively arranged on one side close to the connecting piece 2, the outer convex surfaces of the arch pieces 7 are respectively provided with a buffering positioning part 6, and the buffering positioning part 6 is positioned between the two core wires 4 and is in positioning contact with the inner.
In this embodiment, the arched piece 7 is provided with three pieces, which divide the whole protection piece into three equal parts, the whole protection piece is arranged in the hollow cavity of the outer tegument in a three-point positioning manner through the buffering and positioning part, both side surfaces of the arched piece 7 are arc-shaped assembling convex surfaces, both side surfaces of the connecting piece are arc-shaped assembling concave surfaces, and both sides of the arched piece 7 are positioned and arranged in the arc-shaped assembling concave surfaces of the connecting piece and are bonded and fixed by applying strong glue. When the top receives the shearing, because the structure of protection piece as an organic whole through glue bonding, can not separate this moment, utilize the buffering location portion on the top arch piece to contact the buffering, whole piece arch piece also accepts the shearing, and the shearing force is little this moment, enough can resist the shearing, because the heart yearn dispersion is in both sides, the shearing force can not contact the chip of both sides yet, avoids that can be fine.
When the shearing force constantly increases, the glue of arch piece and connecting piece department is destroyed, the inside protection chamber is fallen into in the downstream after the arch piece of top destroys, as shown in fig. 3, the arch piece of both sides is because protruding this moment, utilize the bellied arch piece in both sides to use as resisting the shearing force when continuing to cut, when the arch piece of both sides uses as resisting the shearing piece, the downforce can make the arch piece of both sides outwards strut, as shown by the arrow in fig. 3, the heart yearn that is located the arch piece of side then can overturn towards the below, utilize the arc concave surface of arch piece as the shearing protection, and the heart yearn is located the opposite side, then can be fine avoid cutting. The structure has more shear resistance when being sheared, and deviates from the shearing force when being sheared, so that the shearing can be avoided well, and the shearing safety is higher.
Wherein, arch piece 7 all adopts elastic metal plectrum or elastic plastic material to make, buffering location portion 6 is the toper form, and it adopts elastic metal thin slice to make, and the both sides of buffering location portion 6 insert respectively in the slot in the arch piece 7 outside and beat glue and the arch piece bonding fixed, and connecting piece 2 adopts the memory metal spare, and a breach 15 is seted up to its arc concave surface one side, and connecting piece 2 is breach internal face when natural state contact each other, and breach 15 on the connecting piece 2 struts through the arch piece 7 elasticity of both sides. Because the connecting piece is elastic metal spare, can resume deformation after losing the holding power of arc piece for the arc piece that the top dropped presss from both sides tightly through the arc piece of both sides after entering into the protection intracavity, the arc piece that drops in the middle of the better protection, and the arc piece after the both sides press from both sides tightly can obtain better shearing resistance force owing to concentrate on together, and intensity is higher.
Wherein the distance between the protecting members is 5-8 cm. Because the middle part forms the spacing distance, the whole cable middle part is by the soft section of multistage, the deformation of bending that can be convenient.
Wherein, the fixed cover 5 of a lateral surface and 7 integral type shaping heart yearns of arch piece 7, 4 fixed sheathes in of heart yearn all are provided with the fixed chamber of a heart yearn, and heart yearn 4 sets up to fix the intracavity fixed clamp tightly in the heart yearn.
The invention has the beneficial effects that: when the top of the protector is sheared, firstly, buffering is carried out through buffering positioning until the arched sheet is separated from the connecting piece, and then a large amount of shearing force can be absorbed in the process, and when the arched sheet at the top is sheared and separated from the protector body, the arched sheet can enter the protector body to be secondarily sheltered from protection;
after the top arch pieces are separated, in the process of pressing down, the arch pieces on the two sides can be contacted for the second time, the arch pieces on the side surfaces are used for carrying out secondary anti-shearing protection, and the core wires on the arch pieces on the side surfaces can be turned towards the outer side and are far away from a shearing source, so that the core wires can be better kept away from shearing.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (3)
1. A compound directly buried cable is characterized in that: the outer tegument is internally provided with a hollow cavity, more than one protection piece is arranged in the hollow cavity at intervals, the more than one protection piece is of a circular structure formed by splicing more than one arch piece and more than one connecting piece, two adjacent arch pieces are connected through one connecting piece, the middle part of the connecting piece is outwards unfolded through the arch pieces on two sides and applies a rebound force to the arch pieces on two sides through the unfolded connecting piece, two sides of an arc convex surface of each arch piece are respectively provided with a core wire, the core wires are respectively arranged on one side close to the connecting piece, the outer convex surfaces of the arch pieces are respectively provided with a buffering and positioning part, and the buffering and positioning parts are positioned between two strands of core wires and are in positioning contact with the inner wall of the outer tegument;
the arched piece is provided with three pieces which divide the whole protection piece into three equal parts, and the whole protection piece is arranged in a hollow cavity of the outer tegument in a three-point positioning mode through the buffering positioning part;
the two side surfaces of the arched sheet are arc-shaped assembling convex surfaces, the two side surfaces of the connecting piece are arc-shaped assembling concave surfaces, and the two sides of the arched sheet are positioned and arranged in the arc-shaped assembling concave surfaces of the connecting piece and are bonded and fixed by strong glue;
the buffer positioning part is made of an elastic metal sheet, and two sides of the buffer positioning part are respectively inserted into the slots at the outer sides of the arch pieces and are adhered and fixed with the arch pieces by glue;
the connecting piece adopts a memory metal piece, one side of an arc concave surface of the connecting piece is provided with a notch, the inner wall surfaces of the notches are mutually contacted when the connecting piece is in a natural state, and the notches on the connecting piece are elastically expanded by the arch pieces at two sides.
2. The composite direct-buried cable of claim 1, wherein: the distance between the protecting members is 5-8 cm.
3. The composite direct-buried cable of claim 1, wherein: the lateral surface of arch piece and the fixed cover of an arch piece integral type shaping heart yearn, the heart yearn is fixed to be sheathe in and all is provided with a heart yearn and fixes the chamber, and the heart yearn sets up in the fixed intracavity fixation of heart yearn and presss from both sides tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910429879.4A CN110047618B (en) | 2019-05-22 | 2019-05-22 | Composite direct-buried cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910429879.4A CN110047618B (en) | 2019-05-22 | 2019-05-22 | Composite direct-buried cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110047618A CN110047618A (en) | 2019-07-23 |
| CN110047618B true CN110047618B (en) | 2020-09-29 |
Family
ID=67283097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910429879.4A Active CN110047618B (en) | 2019-05-22 | 2019-05-22 | Composite direct-buried cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110047618B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0215514A (en) * | 1988-07-04 | 1990-01-19 | Fujikura Ltd | Manufacture of oxide superconductor and superconductive magnet |
| CN201374539Y (en) * | 2009-03-20 | 2009-12-30 | 江苏科能电力工程咨询有限公司 | Assembled ring cable holder |
| CN206236470U (en) * | 2016-11-30 | 2017-06-09 | 珠海思科信电线电缆有限公司 | Buried anti-shearing cable |
| CN108538479A (en) * | 2018-05-29 | 2018-09-14 | 俞天舜 | Resistance to compression composite cable |
| CN208093208U (en) * | 2018-01-05 | 2018-11-13 | 深圳市赛鸿通电线科技有限公司 | Resistance to compression cable |
-
2019
- 2019-05-22 CN CN201910429879.4A patent/CN110047618B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0215514A (en) * | 1988-07-04 | 1990-01-19 | Fujikura Ltd | Manufacture of oxide superconductor and superconductive magnet |
| CN201374539Y (en) * | 2009-03-20 | 2009-12-30 | 江苏科能电力工程咨询有限公司 | Assembled ring cable holder |
| CN206236470U (en) * | 2016-11-30 | 2017-06-09 | 珠海思科信电线电缆有限公司 | Buried anti-shearing cable |
| CN208093208U (en) * | 2018-01-05 | 2018-11-13 | 深圳市赛鸿通电线科技有限公司 | Resistance to compression cable |
| CN108538479A (en) * | 2018-05-29 | 2018-09-14 | 俞天舜 | Resistance to compression composite cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110047618A (en) | 2019-07-23 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200902 Address after: 322105 Zhejiang city of Jinhua province Dongyang City Song Town sokdam Village No. 1 Applicant after: DONGYANG TIANQI TECHNOLOGY Co.,Ltd. Address before: Room 502, Building 26, Lotus Block 101 Lotus Road, Yuhang District, Hangzhou City, Zhejiang Province Applicant before: Lu Wenjie |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220628 Address after: 324000 No.38, Donggang 3rd road, Kecheng District, Quzhou City, Zhejiang Province Patentee after: ZHEJIANG QICHAO CABLE CO.,LTD. Address before: 322105 No. 1, Shi Tan Village, Ge Shan town, Dongyang, Jinhua, Zhejiang Patentee before: DONGYANG TIANQI TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Composite direct buried cable Effective date of registration: 20231111 Granted publication date: 20200929 Pledgee: Bank of China Limited by Share Ltd. Quzhou branch Pledgor: ZHEJIANG QICHAO CABLE CO.,LTD. Registration number: Y2023330002633 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |