CN106972450B - High-voltage solid-sealed cable intermediate joint - Google Patents
High-voltage solid-sealed cable intermediate joint Download PDFInfo
- Publication number
- CN106972450B CN106972450B CN201610555643.1A CN201610555643A CN106972450B CN 106972450 B CN106972450 B CN 106972450B CN 201610555643 A CN201610555643 A CN 201610555643A CN 106972450 B CN106972450 B CN 106972450B
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- China
- Prior art keywords
- glue
- belt
- intermediate joint
- adhesive tape
- waterproof adhesive
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Classifications
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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
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
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- Cable Accessories (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a high-pressure solid-sealed cable intermediate joint which comprises an intermediate joint main body, wherein a nanometer cage skeleton net is sleeved outside the intermediate joint main body and fixed through a binding belt, the middle part and two end parts of the nanometer cage skeleton net are respectively provided with three glue filling valves and two exhaust pipes, an anti-static film is wrapped outside the nanometer cage skeleton net, a PVC (polyvinyl chloride) belt and a waterproof adhesive tape are sequentially wrapped outside the anti-static film, sealing glue is adopted at the port wrapping parts on two sides of the anti-static film and the PVC belt and the port wrapping parts on two sides of the PVC belt and the waterproof adhesive tape, the anti-static film, the PVC belt and the waterproof adhesive tape wrap the glue filling valves and the exhaust pipes inside, only the upper opening of the glue filling valve is reserved and communicated with the nanometer cage skeleton net, glue is filled in the glue filling valves until tail pipes of the exhaust pipes are filled with glue, an armor belt is sleeved outside the waterproof adhesive tape, and a. The high-voltage solid-sealed cable intermediate joint structure provided by the invention is reasonable and reliable, long in service life and good in fireproof and moisture-proof performance.
Description
Technical Field
The invention relates to an intermediate joint, in particular to a high-voltage solid-sealed cable intermediate joint.
Background
With the popularization of power cabling engineering, the accident rate of cables is increased, and a great deal of facts prove that most cable accidents are related to cable accessories, particularly cable intermediate joints. In the existing cable intermediate joint, in order to prevent moisture from entering the intermediate joint, a method of winding a waterproof belt around the end part of the joint body is generally adopted, but after the method is adopted, gaps still exist between layers of the waterproof belt and between the waterproof belt and a cable core wire, the sealing performance is poor, moisture can possibly enter the intermediate joint, and in addition, the common cable intermediate joint is not subjected to fire protection treatment, so that serious potential safety hazards still exist in the power cable in use.
Disclosure of Invention
The invention aims to provide a high-voltage solid-sealed cable intermediate joint which is reasonable and reliable in structure, long in service life and good in fireproof and moisture-proof performance.
The technical scheme of the invention is as follows: a high-pressure solid-sealed cable intermediate joint comprises an intermediate joint main body, wherein a nanometer cage skeleton net is sleeved outside the intermediate joint main body and fixed through a binding belt, a three-port glue filling valve is arranged in the middle of the nanometer cage skeleton net, two exhaust pipes are transversely arranged at two end parts of the nanometer cage skeleton net respectively, an anti-static film is wrapped outside the nanometer cage skeleton net, a PVC belt is wrapped outside the anti-static film, a waterproof adhesive tape is wrapped outside the PVC belt, the wrapping parts of the anti-static film and the PVC belt at two side ports are sealed through sealant, the wrapping parts of the PVC belt and the waterproof adhesive tape at two side ports are also sealed through sealant, the anti-static film, the PVC belt and the waterproof adhesive tape wrap the three-port glue filling valve and the exhaust pipes inside, only the upper ports of the three-port glue filling valve are left to be communicated with the nanometer cage skeleton net, glue is filled in the three-port glue filling valve until the tail pipe of the exhaust pipe is filled with glue, the waterproof adhesive tape outer sleeve is provided with an armor tape, and the armor tape outer sleeve is provided with a protective shell.
Preferably, the antistatic film is prepared by adding an inlet antistatic agent into a PE raw material.
Preferably, the waterproof tape is a 3M waterproof tape.
Preferably, the glue poured into the three-port glue pouring valve is ｃA mixed component glue of UP-A glue and UP-B glue.
Preferably, the protective shell is formed by connecting an upper shell and a lower shell through a reserved bolt hole.
Preferably, a sealing glue is arranged at the joint of the protective shell and the end face of the armor tape.
Preferably, the positions, corresponding to the sealant, on the end surfaces of the two sides of the protective shell are fixed with hoops in a surrounding manner.
Preferably, the clip is made of an insulating material.
Preferably, the protective shell is made of fireproof materials.
Preferably, both the outer surface and the inner surface of the protective shell are coated with a flame retardant insulating coating.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the nano cage skeleton net, the anti-static film, the PVC belt and the waterproof adhesive tape are sequentially sleeved outside the high-pressure solid-sealed cable intermediate joint, and the glue filling valve on the nano cage skeleton net is filled with glue until the tail pipe of the exhaust pipe is filled with glue, so that the sealing performance and the waterproof and moistureproof performance are well guaranteed, and the sealing parts of the ports at two sides of the anti-static film and the PVC belt and the sealing parts of the ports at two sides of the PVC belt and the waterproof adhesive tape are both provided with sealing glue for sealing, so that the sealing performance is more optimized, and moisture is not easy to enter; the armor tape is sleeved with the protective shell, the protective shell is made of fireproof materials, the outer surface and the inner surface of the protective shell are coated with flame-retardant insulating coatings, and therefore the armor tape has good fireproof performance.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention is further described with reference to the following drawings and detailed description.
As shown in fig. 1, a high-pressure solid-sealed cable intermediate joint comprises an intermediate joint main body 1, a nanometer cage skeleton net 2 is sleeved outside the intermediate joint main body 1, the nanometer cage skeleton net 2 is fixed through a binding belt, a three-port glue filling valve 3 is arranged in the middle of the nanometer cage skeleton net 2, two exhaust pipes 4 are transversely arranged at two end portions of the nanometer cage skeleton net 2 respectively, an anti-static film 5 is wrapped outside the nanometer cage skeleton net 2, a PVC belt 6 is wrapped outside the anti-static film 5, a waterproof adhesive tape 7 is wrapped outside the PVC belt 6, sealing glue 8 is adopted for sealing the sealing places of two side ports of the anti-static film 5 and the PVC belt 6, and sealing glue 8 is also adopted for sealing the sealing places of two side ports of the PVC belt 6 and the waterproof adhesive tape 7.
The three-port glue filling valve 3 and the exhaust pipe 4 are sealed by the antistatic film 5, the PVC belt 6 and the waterproof adhesive tape 7, and only the upper port of the three-port glue filling valve 3 is communicated with the nanometer cage skeleton net 2.
Mixing the mixed component glue 9 of the UP-A glue and the UP-B glue according to ｃA corresponding proportion, uniformly stirring, pouring the mixture from ｃA glue pouring valve port 3 until the glue is discharged from the exhaust pipe 4, and slightly extruding the mixture by external force if the flow is not fast so as to accelerate the exhaust. And (3) cutting off the exhaust pipe 4 and the glue filling valve 3 by using a tool when the glue does not flow outwards or is in a semi-solidified state after the glue is filled for about 5-10 min. The latex gloves are worn, and the armor tape 10 is wrapped outside the waterproof adhesive tape 7.
A protective shell 11 is sleeved outside the armor belt 10, and the protective shell 11 is formed by connecting an upper shell and a lower shell through a reserved bolt hole. And sealant 8 is arranged at the joint of the protective shell 11 and the end face of the armor belt 10. And the positions of the end surfaces at the two sides of the protective shell 11, which correspond to the sealant 8, are fixed with a hoop 12 in a surrounding way. The yoke 12 is made of an insulating material. The protective shell 11 is made of fireproof material. The outer surface and the inner surface of the protective shell 11 are coated with flame-retardant insulating paint.
Specifically, the antistatic film 5 is prepared by adding an imported antistatic agent into a PE raw material. The waterproof tape 7 is a 3M waterproof tape.
The high-pressure solid-sealed cable intermediate connector main body 1 is sequentially sleeved with the nanometer cage skeleton net 2, the anti-static film 5, the PVC belt 6 and the waterproof adhesive tape 7, the glue filling valve 3 on the nanometer cage skeleton net 2 is filled with glue until the tail pipe of the exhaust pipe 4 is filled with the glue, so that the sealing performance and the waterproof and moisture-proof performance are well guaranteed, and the sealing parts of the ports on the two sides of the anti-static film 5 and the PVC belt 6 and the sealing parts of the ports on the two sides of the PVC belt 6 and the waterproof adhesive tape 7 are respectively provided with the sealant 8 for sealing, so that the sealing performance is optimized, and moisture is not easy to enter.
The armor belt 10 is externally sleeved with the protective shell 11, the protective shell 11 is made of fireproof materials, and the outer surface and the inner surface of the protective shell 11 are both coated with flame-retardant insulating coatings, so that the armor belt has good fireproof performance, meanwhile, the sealant 8 is arranged at the joint of the protective shell 11 and the end surface of the armor belt 10, the clamp 12 is fixed on the end surfaces of the two sides of the protective shell 11 in a surrounding manner at the position corresponding to the sealant 8, the sealing effect of the sealant 8 on the protective shell 11 is better due to the extrusion effect of the clamp 12, the inner part of the shell can be guaranteed to be incapable of burning due to oxygen deficiency, and the effective fireproof and explosion-proof effects are.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and therefore, modifications, equivalent changes, improvements, etc. made in the claims of the present invention are still included in the scope of the present invention.
Claims (10)
1. The utility model provides a high pressure seals formula cable intermediate head, includes the intermediate head main part, its characterized in that: the middle joint is characterized in that a nanometer cage skeleton net is sleeved outside the middle joint main body and fixed through a binding belt, a three-port glue filling valve is arranged in the middle of the nanometer cage skeleton net, two exhaust pipes are transversely arranged at two end parts of the nanometer cage skeleton net respectively, an anti-static film is wrapped outside the nanometer cage skeleton net, a PVC belt is wrapped outside the anti-static film, a waterproof adhesive tape is wrapped outside the PVC belt, sealing glue is adopted at sealing parts of ports at two sides of the anti-static film and the PVC belt, the sealing parts of the PVC belt and the ports at two sides of the waterproof adhesive tape are sealed through the sealing glue, the anti-static film, the PVC belt and the waterproof adhesive tape wrap the three-port glue filling valve and the exhaust pipes inside and only leave upper ports of the three-port glue filling valve to be communicated with the nanometer cage skeleton net, glue is poured inside the three-port glue filling valve until tail pipes of the exhaust pipes are filled with armor glue, and the waterproof adhesive tape is sleeved outside, the armor belt is sleeved with a protective shell.
2. The high-voltage solid-sealed cable intermediate joint as claimed in claim 1, wherein: the antistatic film is prepared by adding an inlet antistatic agent into a PE raw material.
3. The high-voltage solid-sealed cable intermediate joint as claimed in claim 1, wherein: the waterproof adhesive tape is a 3M waterproof adhesive tape.
4. The high-voltage solid-sealed cable intermediate joint as claimed in claim 1, wherein: the glue filled in the three-port glue filling valve is ｃA mixed component glue of UP-A glue and UP-B glue.
5. The high-voltage solid-sealed cable intermediate joint as claimed in claim 1, wherein: the protective shell is formed by connecting an upper shell and a lower shell through reserved bolt holes.
6. The intermediate joint of a high-voltage solid-sealed cable according to claim 1 or 5, wherein: and a sealant is arranged at the joint of the protective shell and the end face of the armor belt.
7. The intermediate joint of a high-voltage solid-sealed cable according to claim 6, wherein: and the positions on the end surfaces of the two sides of the protective shell, which correspond to the sealant, are encircled and fixed with the hoops.
8. The intermediate joint of a high-voltage solid-sealed cable according to claim 7, wherein: the clip is made of an insulating material.
9. The intermediate joint of a high-voltage solid-sealed cable according to claim 1 or 8, wherein: the protective shell is made of fireproof materials.
10. The intermediate joint of a high-voltage solid-sealed cable according to claim 1 or 8, wherein: and the outer surface and the inner surface of the protective shell are both coated with flame-retardant insulating paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555643.1A CN106972450B (en) | 2016-07-15 | 2016-07-15 | High-voltage solid-sealed cable intermediate joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555643.1A CN106972450B (en) | 2016-07-15 | 2016-07-15 | High-voltage solid-sealed cable intermediate joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106972450A CN106972450A (en) | 2017-07-21 |
| CN106972450B true CN106972450B (en) | 2019-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610555643.1A Active CN106972450B (en) | 2016-07-15 | 2016-07-15 | High-voltage solid-sealed cable intermediate joint |
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| CN (1) | CN106972450B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623306A (en) * | 2017-09-21 | 2018-01-23 | 科耐特输变电科技股份有限公司 | A kind of new cable accessory flame-proof explosion-proof shell |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100684342B1 (en) * | 2006-11-29 | 2007-02-22 | 주식회사 천일건축엔지니어링 종합건축사사무소 | Construction of underground cable for high voltage electric wire |
| CN201266825Y (en) * | 2008-10-07 | 2009-07-01 | 浙江汉通电缆有限公司 | Cable joint |
| CN201504081U (en) * | 2009-04-30 | 2010-06-09 | 黄园月 | Special power cable connecting device under coal mine |
| CN201616648U (en) * | 2009-12-22 | 2010-10-27 | 深圳市宏商材料科技股份有限公司 | Encapsulating type medium-voltage cable connector with outer protection |
| CN103022955A (en) * | 2012-11-30 | 2013-04-03 | 江苏澳能电力电缆附件有限公司 | Intermediate joint of high-voltage cables |
| CN205039508U (en) * | 2015-10-13 | 2016-02-17 | 廊坊辰瑞电气有限公司 | Cable intermediate joint waterproof explosion -proof box |
| CN205283080U (en) * | 2016-01-15 | 2016-06-01 | 邵珠合 | Shrinkage explosion -proof type cable intermediate head |
-
2016
- 2016-07-15 CN CN201610555643.1A patent/CN106972450B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100684342B1 (en) * | 2006-11-29 | 2007-02-22 | 주식회사 천일건축엔지니어링 종합건축사사무소 | Construction of underground cable for high voltage electric wire |
| CN201266825Y (en) * | 2008-10-07 | 2009-07-01 | 浙江汉通电缆有限公司 | Cable joint |
| CN201504081U (en) * | 2009-04-30 | 2010-06-09 | 黄园月 | Special power cable connecting device under coal mine |
| CN201616648U (en) * | 2009-12-22 | 2010-10-27 | 深圳市宏商材料科技股份有限公司 | Encapsulating type medium-voltage cable connector with outer protection |
| CN103022955A (en) * | 2012-11-30 | 2013-04-03 | 江苏澳能电力电缆附件有限公司 | Intermediate joint of high-voltage cables |
| CN205039508U (en) * | 2015-10-13 | 2016-02-17 | 廊坊辰瑞电气有限公司 | Cable intermediate joint waterproof explosion -proof box |
| CN205283080U (en) * | 2016-01-15 | 2016-06-01 | 邵珠合 | Shrinkage explosion -proof type cable intermediate head |
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| CN106972450A (en) | 2017-07-21 |
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