CN108808611B - Cable duct with good sealing effect - Google Patents
Cable duct with good sealing effect Download PDFInfo
- Publication number
- CN108808611B CN108808611B CN201810765767.1A CN201810765767A CN108808611B CN 108808611 B CN108808611 B CN 108808611B CN 201810765767 A CN201810765767 A CN 201810765767A CN 108808611 B CN108808611 B CN 108808611B
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- CN
- China
- Prior art keywords
- cable
- hole
- sealing
- cable duct
- wall
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/04—Installations of electric cables or lines in or on the ground or water in surface ducts; Ducts or covers therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Installation Of Indoor Wiring (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a cable duct with good sealing effect, which comprises a cable duct body and a sealing unit, the sealing unit comprises a sealing plate in threaded connection with the inner wall of the cable guide pipe, a through hole which is arranged on the sealing plate and is penetrated by a cable, a clamping assembly and a sealing assembly which are arranged on the side wall of the through hole, the clamping assembly comprises a plurality of clamping plates annularly arranged on the inner wall of the through hole, the first end of each clamping plate is fixedly connected with the inner side of the inner wall of the through hole, the second end of each clamping plate extends along the axis direction of the through hole and is gradually close to the axis of the through hole for free arrangement, the sealing assembly comprises an inflatable cushion annularly arranged in a gap formed by the clamping plate and the through hole, the inflatable cushion is inflated to extrude the clamping plate until the clamping plate moves towards the direction close to the axis of the through hole to abut against the cable, and the inflatable cushion is inflated to wrap the cable. The invention has at least the following advantages: the cable fixing device has good sealing performance, can fix the cable well, and is optimized in structure.
Description
Technical Field
The invention relates to the technical field of power construction, in particular to a cable guide pipe with a good sealing effect.
Background
The cable duct is a protection member widely used in power engineering, and is used for protecting the pipes of wires and cables in electrical installation, and allowing the wires and cables to be threaded and replaced. At present, the waterproof of the cable trench and the cable well mainly adopts materials such as cement, plugging mud and the like to plug the cable pipe, but the waterproof effect is not good, and the main reason is that the waterproof effect is reduced due to expansion caused by heat and contraction caused by cold and cracking between the materials and the pipeline. In addition, the daily maintenance operation of the cable inevitably damages the sealing material at the cable pipe, the cable pipe needs to be sealed again, and the replacement of the cable pipe is inconvenient in the future.
Disclosure of Invention
The invention aims to provide a cable guide pipe with good sealing effect, which has good sealing performance, can fix a cable well and has an optimized structure.
In order to solve the technical problems, the invention provides a cable duct with good sealing effect, which comprises a cable duct body, wherein sealing units are arranged at openings at two ends of the cable duct body, the sealing units are used for sealing the port of the cable duct body, each sealing unit comprises a sealing plate in threaded connection with the inner wall of the cable duct, a through hole which is arranged on the sealing plate and is penetrated by a cable, a clamping assembly and a sealing assembly, the clamping assembly comprises a plurality of clamping plates which are annularly arranged on the inner wall of the through hole, the first end of each clamping plate is fixedly connected with the inner side of the inner wall of the through hole, the second end of each clamping plate extends along the axial direction of the through hole and is gradually close to the axial line of the through hole in a free arrangement mode, each sealing assembly comprises an inflatable cushion which is annularly arranged in a gap formed by the clamping plates and the through hole, and the inflatable cushions inflate and extrude, until the clamping plate moves towards the direction close to the axis of the through hole and is abutted against the cable, the inflatable cushion is inflated to wrap the cable.
Furthermore, a pressure sensor for detecting the extrusion force of the inflatable cushion is arranged on the clamping plate.
Further, the inflatable cushion comprises a waterproof inflatable cushion.
Further, the seal assembly comprises a pump body for pumping air to the inflatable cushion, and the pump body is connected with the inflatable cushion through a connecting pipe.
Further, the cable duct body includes an inner wall and an outer wall.
Further, the inner wall comprises a lubricating layer and an electromagnetic shielding layer from inside to outside.
Further, an insulating layer is arranged between the lubricating layer and the electromagnetic shielding layer.
Further, the outer wall comprises a heat insulation layer and a hydrophobic layer from inside to outside.
Further, an ultraviolet blocking layer is arranged between the heat insulation layer and the hydrophobic layer.
By means of the technical scheme, the invention at least has the following advantages:
1. through the arrangement of the through hole and the inflatable cushion, the through hole can facilitate the cable to be installed in a penetrating way, the inflatable cushion can be inflated to effectively wrap the cable, the interior of the cable guide pipe body is effectively sealed with the outside, and the structure is optimized;
2. through being provided with joint board, when inflatable packer is in original state, can lead to the cable betterly, when inflatable packer is in the gas filled state, joint board butt the cable carries out effectual fixed, configuration optimization to the cable.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
In the above drawings, 1, a cable duct body; 2. a sealing plate; 3. a through hole; 4. a clamping and connecting plate; 5. an inflatable cushion; 6. a piezoelectric sensor; 7. a lubricating layer; 8. an electromagnetic shielding layer; 9. an insulating layer; 10. a thermal insulation layer; 11. a hydrophobic layer; 12. an ultraviolet ray blocking layer.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
With reference to fig. 1 and 2, the invention discloses a cable duct with good sealing effect, which includes a cable duct body 1, wherein sealing units are arranged at openings at two ends of the cable duct body 1, and the sealing units are used for sealing ports of the cable duct body 1. The sealing unit comprises a sealing plate 2 in threaded connection with the inner wall of the cable guide pipe, a through hole 3 formed in the sealing plate 2 and used for a cable to penetrate through, and a clamping assembly and a sealing assembly arranged on the side wall of the through hole 3.
The joint subassembly is established including the ring multi-disc joint board 4 on the 3 inner walls of through-hole, the first end fixed connection of joint board 4 inboard, the second end edge of 3 inner walls of through-hole 3 axis direction of through-hole extends and is close to the free setting of 3 axes of through-hole gradually. The sealing assembly comprises an inflatable cushion 5 annularly arranged in a gap formed by the clamping plate 4 and the through hole 3, the inflatable cushion 5 is inflated to extrude the clamping plate 4 until the clamping plate 4 moves towards the direction close to the axis of the through hole 3 to abut against a cable, and the inflatable cushion 5 is inflated to wrap the cable. Through the arrangement of the through hole 3 and the inflatable cushion 5, the through hole 3 can facilitate the installation of a cable in a penetrating way, the inflatable cushion 5 can be inflated to effectively wrap the cable, the interior of the cable guide pipe body 1 is effectively sealed with the outside, and the structure is optimized; through being provided with joint board 4, when inflatable packer 5 is in original state, joint board 4 can lead to the cable betterly, when inflatable packer 5 is in the inflation state, 4 butts of joint board the cable carries out effectual fixed, the structure is excellent to the cable.
In the invention, a pressure sensor 6 for detecting the extrusion force of the inflatable cushion is preferably arranged on the clamping plate 4; the inflatable cushion 5 comprises a waterproof inflatable cushion. The sealing assembly comprises a pump body for pumping air to the inflatable cushion 5, and the pump body is connected with the inflatable cushion 5 through a connecting pipe.
In the present invention, it is preferable that the cable duct body 1 includes an inner wall and an outer wall. The inner wall comprises a lubricating layer 7 and an electromagnetic shielding layer 8 from inside to outside, and an insulating layer 9 is arranged between the lubricating layer 7 and the electromagnetic shielding layer 8. The lubricating layer 7 plays a role in lubrication, so that the friction between the lubricating layer and the cable can be greatly reduced, and the cable is convenient to mount; the insulating layer 9 insulates and isolates the electromagnetic shielding layer 8 from the cable; the electromagnetic shielding layer 9 can play a certain electromagnetic shielding role on the internal cable. The outer wall comprises a heat insulation layer 10 and a hydrophobic layer 11 from inside to outside; an ultraviolet barrier layer 12 is arranged between the thermal insulation layer 10 and the hydrophobic layer 11. Through being provided with hydrophobic layer 11, can let the water on the cable pipe body 1 outer wall dissipate fast, prevent or reduce under the low temperature environment cable pipe body 1 outer wall and produce and freeze.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (9)
1. A cable duct with good sealing effect comprises a cable duct body and is characterized in that sealing units are arranged at openings at two ends of the cable duct body and used for sealing ports of the cable duct body, each sealing unit comprises a sealing plate in threaded connection with the inner wall of the cable duct, a through hole formed in the sealing plate and used for a cable to penetrate through, a clamping assembly and a sealing assembly, the clamping assembly is arranged on the side wall of the through hole and comprises a plurality of clamping plates arranged on the inner wall of the through hole in an annular mode, the first end and the second end of each clamping plate are fixedly connected with the inner side and the second end of the inner wall of the through hole and extend along the axial direction of the through hole and are gradually close to the axial line of the through hole in a free mode, each sealing assembly comprises an inflatable cushion arranged in a gap formed by the clamping plates and the through hole in an annular mode, and the inflatable, until the clamping plate moves towards the direction close to the axis of the through hole and is abutted against the cable, the inflatable cushion is inflated to wrap the cable.
2. The well-sealed cable duct of claim 1, wherein the snap plate is provided with a pressure sensor for detecting the squeezing force of the inflatable cushion.
3. The well-sealed cable duct of claim 1, wherein the inflatable cushion comprises a waterproof inflatable cushion.
4. The cable guide with good sealing effect of claim 1, wherein the sealing assembly comprises a pump body for pumping air to the inflatable cushion, and the pump body is connected with the inflatable cushion through a connecting pipe.
5. The sealable cable duct of claim 1, wherein the cable duct body comprises an inner wall and an outer wall.
6. The sealable cable duct of claim 5, wherein the inner wall comprises, from inside to outside, a lubricant layer and an electromagnetic shield layer.
7. The sealable cable duct of claim 6, wherein an insulating layer is disposed between the lubricant layer and the electromagnetic shield layer.
8. The well-sealed cable guide of claim 5, wherein the outer wall comprises, from inside to outside, an insulating layer and a hydrophobic layer.
9. The hermetically sealed cable duct of claim 8, wherein an ultraviolet barrier is disposed between the insulating layer and the hydrophobic layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810765767.1A CN108808611B (en) | 2018-07-12 | 2018-07-12 | Cable duct with good sealing effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810765767.1A CN108808611B (en) | 2018-07-12 | 2018-07-12 | Cable duct with good sealing effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108808611A CN108808611A (en) | 2018-11-13 |
| CN108808611B true CN108808611B (en) | 2020-05-22 |
Family
ID=64076396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810765767.1A Active CN108808611B (en) | 2018-07-12 | 2018-07-12 | Cable duct with good sealing effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108808611B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118554356B (en) * | 2024-07-30 | 2024-10-18 | 中建五局第三建设(深圳)有限公司 | Protective sleeve and use method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29821504U1 (en) * | 1998-12-02 | 1999-02-11 | Alcatel, Paris | Device for inserting and / or leading a cable into or out of a tubular line |
| CN205693135U (en) * | 2016-06-04 | 2016-11-16 | 贺彬 | A kind of eyelet strip of high-tension switch cabinet |
| CN106655068A (en) * | 2016-10-14 | 2017-05-10 | 国家电网公司 | Flexible pipeline clogging device |
| CN207039162U (en) * | 2017-08-01 | 2018-02-23 | 辽宁襄平电力勘测设计有限公司 | A kind of cable seal of tube stop water |
| CN107809098A (en) * | 2017-09-30 | 2018-03-16 | 武汉资联虹康科技股份有限公司 | A kind of cable protection sleeve pipe |
| CN207339214U (en) * | 2017-10-27 | 2018-05-08 | 苏州市木易船舶设备有限公司 | Glass fibre reinforced plastic cable pipe |
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2018
- 2018-07-12 CN CN201810765767.1A patent/CN108808611B/en active Active
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| Publication number | Publication date |
|---|---|
| CN108808611A (en) | 2018-11-13 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 215000 Ankou Road, Linhu Economic Zone, Qidu Town, Wujiang City, Suzhou City, Jiangsu Province Applicant after: Suzhou Jiatong Science and Technology Co., Ltd. Address before: 215000 Ankou Road, Linhu Economic Zone, Qidu Town, Wujiang City, Suzhou City, Jiangsu Province Applicant before: WUJIANG JIATONG CABLE CO., LTD. |
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| GR01 | Patent grant |