CN110838708A - Prefabricated formula intermediate head - Google Patents
Prefabricated formula intermediate head Download PDFInfo
- Publication number
- CN110838708A CN110838708A CN201911356940.3A CN201911356940A CN110838708A CN 110838708 A CN110838708 A CN 110838708A CN 201911356940 A CN201911356940 A CN 201911356940A CN 110838708 A CN110838708 A CN 110838708A
- Authority
- CN
- China
- Prior art keywords
- shell
- outer protective
- shielding layer
- insulating part
- intermediate joint
- Prior art date
- 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.)
- Withdrawn
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Classifications
-
- 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)
Abstract
The invention relates to the technical field of cable accessories and discloses a prefabricated intermediate joint which comprises a conductor connecting pipe, wherein a high-voltage shielding cover is arranged outside the conductor connecting pipe, an insulating part is arranged outside the high-voltage shielding cover, stress cones are arranged at two ends of the insulating part, a shielding layer is arranged on the outer surface of the insulating part, a shell is arranged outside the shielding layer, the insulating part is sealed inside the shell, an outer protective shell is arranged outside the shell, and sealant is filled between the outer protective shell and the shell; an outer protective shell is arranged outside the shell, the outer protective shell is used for protecting the shell, water cannot enter the shell when the solar water heater is used in a buried area or an area with much rainwater, and sealant filled between the outer protective shell and the shell can further prevent the shell from entering the water; the shielding layer formed by pouring rubber is firm and durable and is not easy to scratch and damage, and the technical problem that the surface of the shielding layer formed by spraying in the prior art is easy to damage is solved.
Description
Technical Field
The invention relates to the technical field of cable accessories, in particular to a prefabricated intermediate joint.
Background
The intermediate joint is a cable accessory for connecting two cables, and is generally divided into a thermal contraction type intermediate joint, a cold contraction type intermediate joint and a prefabricated intermediate joint, and the prefabricated intermediate joint is generally made of silicon rubber or ethylene propylene rubber, and a stress cone which is a geometric structure method is mainly adopted to solve the problem of stress concentration. The intermediate head of prior art includes the conductor connecting pipe, and conductor connecting pipe outside is equipped with high-pressure shield cover, and the high-pressure shield cover outside is the insulating part, and the both ends of insulating part are equipped with the stress cone, and the outward appearance of insulating part has the shielding layer, and the shielding layer outside is equipped with the shell including sealed with the insulating part.
Because the shielding layer is manufactured by adopting a spraying mode in the prior art, the surface of the shielding layer manufactured by spraying is easy to be damaged, and the shielding effect is poor. In addition, the outer surface of the shell of the prefabricated intermediate joint in the prior art is lack of a protective layer, and water is likely to enter when the prefabricated intermediate joint is used in a buried area or an area with much rainwater, so that the intermediate joint is damaged.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a prefabricated intermediate joint, which solves the problems that the intermediate joint in the prior art is easy to enter water and a shielding layer is easy to be damaged.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a prefabricated formula intermediate head, includes the conductor connecting pipe, the outside of conductor connecting pipe is equipped with high-pressure shield cover, the outside of high-pressure shield cover is equipped with the insulating part, the both ends of insulating part are equipped with the stress cone, just the surface of insulating part has the shielding layer, the outside of shielding layer is equipped with the shell, the insulating part is sealed the inside of shell, the outside of shell is equipped with the outer protective housing, the outer protective housing with it has sealed glue to fill between the shell, the shielding layer is formed by the rubber pouring.
Preferably, both ends of the outer protective shell are respectively provided with a protective sleeve.
Preferably, the outer protective shell is made of glass fiber reinforced plastic.
Preferably, the shell is made of copper.
Preferably, the sealant is filled between the housing and the shielding layer.
Preferably, the shielding layer is made of a semiconductive silicon rubber material with the thickness of 6 mm.
Preferably, the high-voltage shielding cover, the stress cone and the insulating part are of an integral structure formed by casting.
(III) advantageous effects
The invention provides a prefabricated intermediate joint, which has the following beneficial effects:
(1) according to the invention, the outer protective shell is arranged outside the shell, the shell is protected by the outer protective shell, water cannot enter the shell when the waterproof paint is used in a buried area or an area with much rainwater, and the sealant filled between the outer protective shell and the shell can further prevent the shell from entering the water; the shielding layer formed by pouring rubber is firm and durable and is not easy to scratch and damage, and the technical problem that the surface of the shielding layer formed by spraying in the prior art is easy to damage is solved.
(2) The protective sleeves at the two ends of the outer protective shell can protect the two ends of the outer protective shell and a cable, the glass fiber reinforced plastic shell has the advantages of being good in sealing performance, good in waterproof performance, firm, durable and not prone to damage, the copper shell has the advantage of being high in mechanical strength and not prone to damage under the action of external force, the high-voltage shielding cover, the stress cone and the insulating piece are of an integral structure formed by integral casting, and the high-voltage shielding cover has the advantages of being simple in structure and convenient to install.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a conductor connecting pipe; 2. a high voltage shield; 3. an insulating member; 4. a stress cone; 5. a shielding layer; 6. a housing; 7. an outer protective shell; 8. sealing glue; 9. and (5) protecting the sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides a technical solution: the utility model provides a prefabricated formula intermediate head, including conductor connecting pipe 1, the outside of conductor connecting pipe 1 is equipped with high-pressure shield cover 2, the outside of high-pressure shield cover 2 is equipped with insulating part 3, the both ends of insulating part 3 are equipped with stress cone 4, and the surface of insulating part 3 has shielding layer 5, shielding layer 5's outside is equipped with shell 6, insulating part 3 seals up the inside at shell 6, the outside of shell 6 is equipped with outer protective housing 7, it has sealed glue 8 to fill between outer protective housing 7 and the shell 6, shielding layer 5 is formed by the rubber pouring, shell 6 outside sets up outer protective housing 7, utilize outer protective housing 7 to protect shell 6, and sealed glue of filling between outer protective housing 7 and the shell 6 can further prevent that the shell from intaking.
Furthermore, both ends of outer protective housing 7 are equipped with protective sleeve 9 respectively, and protective sleeve 9 can protect outer protective housing 7 both ends and cable.
Further, outer protective housing 7 is the glass steel material, makes outer protective housing 7 have that sealing performance is good, waterproof nature is good, durable, not fragile characteristics, when burying ground or the area that the rainwater is many uses, also can not intake in the shell 6.
Furthermore, the shell 6 is made of copper, and the copper shell 6 has the characteristic of high mechanical strength and is not easy to damage under the action of external force.
Furthermore, a sealant 8 is filled between the shell 6 and the shielding layer 5, and the sealant 8 between the shell 6 and the shielding layer 5 can make the whole middle joint have better sealing performance.
Furthermore, the shielding layer 5 is made of a semi-conductive silicon rubber material with the thickness of 6mm, so that the shielding effect of the shielding layer 5 is better.
Furthermore, the high-voltage shielding cover 2, the stress cone 4 and the insulating part 3 are of an integral structure formed by casting, and the integral structure has the advantages of simple structure and convenience in installation.
In conclusion, the working process of the invention is as follows: because 6 outsides of shell set up outer protective housing 7, utilize outer protective housing 7 to protect shell 6, because outer protective housing 7 of glass steel material has that sealing performance is good, waterproof nature is good, durable, not fragile characteristics, when burying ground or the area use that the rainwater is many, also can not intake in the shell 6, sealed glue 8 of packing between outer protective housing 7 and the shell 6 can further prevent that shell 6 from intaking, protective case 9 at 7 both ends of outer protective housing can protect 7 both ends of outer protective housing and cable. The shielding layer 5 that the rubber pouring formed is durable, difficult fish tail damage, has solved the technical problem that the shielding layer 5 surface that prior art spraying formed easily harms, and high-pressure shield cover 2, stress cone 4 and insulator 3 adopt integrative casting forming's integral structure, have simple structure, simple to operate's advantage.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a prefabricated formula intermediate head, includes conductor connecting pipe (1), the outside of conductor connecting pipe (1) is equipped with high voltage shield cover (2), the outside of high voltage shield cover (2) is equipped with insulating part (3), the both ends of insulating part (3) are equipped with stress cone (4), just the surface of insulating part (3) has shielding layer (5), the outside of shielding layer (5) is equipped with shell (6), insulating part (3) are sealed the inside of shell (6), its characterized in that: the outside of shell (6) is equipped with outer protective housing (7), outer protective housing (7) with it has sealed glue (8) to fill between shell (6), shielding layer (5) are formed by the rubber pouring.
2. A pre-fabricated intermediate joint as claimed in claim 1, wherein: and protective sleeves (9) are respectively arranged at two ends of the outer protective shell (7).
3. A pre-fabricated intermediate joint as claimed in claim 1, wherein: the outer protective shell (7) is made of glass fiber reinforced plastic.
4. A pre-fabricated intermediate joint as claimed in claim 1, wherein: the shell (6) is made of copper.
5. A pre-fabricated intermediate joint as claimed in claim 1, wherein: the sealant (8) is filled between the shell (6) and the shielding layer (5).
6. A pre-fabricated intermediate joint as claimed in claim 1, wherein: the shielding layer (5) is made of a semi-conductive silicon rubber material with the thickness of 6 mm.
7. A pre-fabricated intermediate joint as claimed in claim 1, wherein: the high-voltage shielding cover (2), the stress cone (4) and the insulating part (3) are of an integral structure formed by casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911356940.3A CN110838708A (en) | 2019-12-25 | 2019-12-25 | Prefabricated formula intermediate head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911356940.3A CN110838708A (en) | 2019-12-25 | 2019-12-25 | Prefabricated formula intermediate head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110838708A true CN110838708A (en) | 2020-02-25 |
Family
ID=69578636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911356940.3A Withdrawn CN110838708A (en) | 2019-12-25 | 2019-12-25 | Prefabricated formula intermediate head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110838708A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113920829A (en) * | 2020-07-10 | 2022-01-11 | 广东电网有限责任公司江门供电局 | Be applied to cable joint installation training with mechanical feedback model |
-
2019
- 2019-12-25 CN CN201911356940.3A patent/CN110838708A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113920829A (en) * | 2020-07-10 | 2022-01-11 | 广东电网有限责任公司江门供电局 | Be applied to cable joint installation training with mechanical feedback model |
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Legal Events
| 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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200225 |
|
| WW01 | Invention patent application withdrawn after publication |