CN213585125U - Prefabricated straight joint - Google Patents
Prefabricated straight joint Download PDFInfo
- Publication number
- CN213585125U CN213585125U CN202022462608.XU CN202022462608U CN213585125U CN 213585125 U CN213585125 U CN 213585125U CN 202022462608 U CN202022462608 U CN 202022462608U CN 213585125 U CN213585125 U CN 213585125U
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- prefabricated
- layer
- shield layer
- joint
- internal shield
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Abstract
The utility model relates to a prefabricated formula straight joint, including prefabricated straight joint body, prefabricated straight joint body contains from interior toward outer internal shield layer, insulating layer and the external shield layer that sets gradually, internal shield layer, insulating layer and external shield layer formula structure as an organic whole, and the inside coaxial conductor connecting pipe that is used for connecting the sinle silk of two cables that is equipped with of internal shield layer, and the both ends of external shield layer all are equipped with the stress cone. Internal shield layer, insulating layer and outer shielding layer adopt the prefabricated integral type structure of mill, avoid traditional pyrocondensation to connect multilayer structure's structure layering, the permanent deformation that traditional shrinkage joint expansion leads to has also been avoided simultaneously, do not have the restriction of shelf life, and because do not need the expansion, do not have permanent deformation, therefore reduction theory design field intensity calculation data that structures such as stress cone can be better, there is not the deviation with the design value, it is more reasonable to have a structure, long service life, advantages such as the installation is convenient, the fault rate that can greatly reduced cable joint.
Description
The technical field is as follows:
the utility model relates to a prefabricated formula straight joint.
Background art:
the existing through joint is mainly a thermal shrinkage joint or a cold shrinkage joint, the thermal shrinkage joint has a structural lamination with a multilayer structure, and the structural lamination is easy to occur due to vibration when the direct joint is used, so that the multilayer structure is damaged, and the normal use is influenced; the cold-shrink joint is easy to expand to cause permanent deformation after being stored for a long time, and the storage period is limited.
The utility model has the following contents:
the utility model discloses make the improvement to the problem that above-mentioned prior art exists, promptly the utility model aims to solve the technical problem that a prefabricated formula through joint is provided, not only structural design is reasonable, stability is good, and convenient long-time the depositing moreover.
In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides a prefabricated formula straight joint, includes prefabricated straight joint body, prefabricated straight joint body contains from interior toward outer internal shield layer, insulating layer and the external shield layer that sets gradually, internal shield layer, insulating layer and external shield layer formula structure as an organic whole, the inside coaxial conductor connecting pipe that is used for connecting the sinle silk of two cables that is equipped with of internal shield layer.
Furthermore, two ends of the outer shielding layer are provided with stress cones.
Further, the cable comprises a wire core, a cable insulation shielding layer, a cable copper wire shielding layer, an inner sheath, an armor layer and an outer sheath which are sequentially arranged from inside to outside, wherein a constant force spring is sleeved on the cable copper wire shielding layer.
Furthermore, a grounding wire is connected between the shielding layers of the copper wires of the two cables.
Further, a waterproof adhesive tape located on the outer side of the grounding wire is arranged between the outer sheaths of the two cables, and an armor tape is arranged on the outer side of the waterproof adhesive tape.
Furthermore, the inner shielding layer, the insulating layer and the outer shielding layer are prefabricated and formed into a whole in a mould pressing mode in a factory.
Compared with the prior art, the utility model discloses following effect has: the utility model has the advantages of reasonable design, internal shield layer, insulating layer and outer shielding layer adopt the prefabricated integral type structure of mill, and not only simple to operate does not need expansion, deformation when depositing moreover, still can normal use, long service life after depositing for a long time.
Description of the drawings:
fig. 1 is a schematic front sectional view of an embodiment of the present invention;
fig. 2 is a schematic front sectional view of the prefabricated straight joint body according to the embodiment of the present invention.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-2, the utility model relates to a prefabricated formula direct joint, including prefabricated direct joint body 1, prefabricated direct joint body 1 contains from interior toward the interior internal shield layer 2, insulating layer 3 and the outer shielding layer 4 that sets gradually outward, internal shield layer 2, insulating layer 3 and outer shielding layer 4 formula structure as an organic whole, the inside coaxial conductor connecting pipe 7 that is used for connecting the sinle silk 6 of two cables 5 that is equipped with of internal shield layer 2, the both ends of outer shielding layer 4 all are equipped with the stress cone. Internal shield layer, insulating layer and outer shielding layer adopt the prefabricated integral type structure of mill, avoid traditional pyrocondensation to connect multilayer structure's structure layering, the permanent deformation that traditional shrinkage joint expansion leads to has also been avoided simultaneously, do not have the restriction of shelf life, and because do not need the expansion, do not have permanent deformation, therefore reduction theory design field intensity calculation data that structures such as stress cone can be better, there is not the deviation with the design value, it is more reasonable to have a structure, long service life, low cost, a plurality of advantages such as the installation is convenient, can greatly reduced cable joint's fault rate.
In this embodiment, in order to improve the waterproof effect of the joint, a waterproof sealing ring (not shown) is disposed inside the stress cone.
In this embodiment, the cable 1 includes the sinle silk 6, the cable insulation shielding layer 8, the cable copper wire shielding layer 9, the inner sheath 10, the armor 11 and the oversheath 12 that set gradually from inside to outside, the cover is equipped with constant force spring 13 on the cable copper wire shielding layer 9.
In this embodiment, a grounding wire 14 is connected between the copper wire shielding layers 9 of the two cables 1.
In the embodiment, a waterproof adhesive tape 15 positioned outside the grounding wire 14 is arranged between the outer sheaths 12 of the two cables 1 so as to improve the overall waterproof performance; an armor tape 16 is arranged on the outer side of the waterproof adhesive tape.
In this embodiment, the inner shield layer 2, the insulating layer 3 and the outer shield layer 4 are prefabricated and formed into a whole by mold pressing in a factory. When the cable is installed on site, the prefabricated straight-through connector is pushed into one end of one cable, and the conductor connecting pipe is pressed and then pushed back to the middle position of two cables, so that the cable is convenient to install.
The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.
The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (6)
1. A prefabricated formula straight joint which characterized in that: including prefabricated through joint body, prefabricated through joint body contains from interior toward outer internal shield layer, insulating layer and the external shield layer that sets gradually, internal shield layer, insulating layer and external shield layer formula structure as an organic whole, the inside coaxial conductor connecting pipe that is used for connecting the sinle silk of two cables that is equipped with of internal shield layer.
2. A prefabricated feed-through joint as claimed in claim 1, wherein: and stress cones are arranged at two ends of the outer shielding layer.
3. A prefabricated feed-through joint as claimed in claim 1, wherein: the cable comprises a cable core, a cable insulation shielding layer, a cable copper wire shielding layer, an inner sheath, an armor layer and an outer sheath which are sequentially arranged from inside to outside, wherein a constant force spring is sleeved on the cable copper wire shielding layer.
4. A prefabricated feed-through joint as claimed in claim 3, wherein: and a grounding wire is connected between the shielding layers of the copper wires of the two cables.
5. A prefabricated feed-through joint as claimed in claim 4, wherein: a waterproof adhesive tape positioned on the outer side of the grounding wire is arranged between the outer sheaths of the two cables, and an armor tape is arranged on the outer side of the waterproof adhesive tape.
6. A prefabricated feed-through joint as claimed in claim 1, wherein: the inner shielding layer, the insulating layer and the outer shielding layer are prefabricated and formed into a whole in a mould pressing mode in a factory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022462608.XU CN213585125U (en) | 2020-10-29 | 2020-10-29 | Prefabricated straight joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022462608.XU CN213585125U (en) | 2020-10-29 | 2020-10-29 | Prefabricated straight joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213585125U true CN213585125U (en) | 2021-06-29 |
Family
ID=76531044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022462608.XU Expired - Fee Related CN213585125U (en) | 2020-10-29 | 2020-10-29 | Prefabricated straight joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213585125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115832734A (en) * | 2022-12-26 | 2023-03-21 | 江苏中天科技电缆附件有限公司 | Cable joint with multi-function grounding method and grounding method for cable joint |
-
2020
- 2020-10-29 CN CN202022462608.XU patent/CN213585125U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115832734A (en) * | 2022-12-26 | 2023-03-21 | 江苏中天科技电缆附件有限公司 | Cable joint with multi-function grounding method and grounding method for cable joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210629 |