CN200997512Y - Damp-proof device of cable intermediate connecter - Google Patents
Damp-proof device of cable intermediate connecter Download PDFInfo
- Publication number
- CN200997512Y CN200997512Y CN 200620147929 CN200620147929U CN200997512Y CN 200997512 Y CN200997512 Y CN 200997512Y CN 200620147929 CN200620147929 CN 200620147929 CN 200620147929 U CN200620147929 U CN 200620147929U CN 200997512 Y CN200997512 Y CN 200997512Y
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- China
- Prior art keywords
- damp proof
- elasticity
- proof cover
- cable intermediate
- intermediate joint
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Abstract
A cable middle joint moistureproof device, which comprises mutually connected cable core (4.1) and (4.2) and a cable middle joint (3), is characterized in that the both ends of the cable middle joint (3) are respectively connected with a shrinkable elastic moistureproof sleeve (1), which is pre-expanded by a stay tube.
Description
Technical field
The utility model relates to a kind of joint wet prevention apparatus, especially a kind of cable intermediate joint wet prevention apparatus.
Background technology
At present, the annex that is used for connecting in the middle of the cable comprise pyrocondensation transition joint and shrinkage indirect first two, but moisture-proof characteristic is all undesirable.Fig. 1 and Fig. 2 are respectively the structure charts that existing transition joint is used in practice, and its inner inner shield pipe comprises that half conduit, tubaeform stress cone comprise that stress tube, insulating barrier and outer shielding layer do not show on figure.In actual use, because the environment for use of cable joint is complicated and diversified, its surrounding environment often is moist, for the pyrocondensation cable intermediate joint, because shape is fixing after its pyrocondensation, in use continue the trend of contraction never again, therefore damp proof effect is relatively poor; And for the shrinkage cable intermediate joint, though it still has the trend that continues contraction in use, therefore damp proof effect is also better, but in environment for use than under the condition of severe, its individual layer moisture-proof characteristic still can not meet the demands, and causes the connecting portion humidity easily, causes accident.
Summary of the invention
The cable intermediate joint moisture-proof characteristic can not meet the demands in order to overcome now, cause the connecting portion humidity easily, cause unexpected shortcoming, the utility model provides a kind of cable intermediate joint wet prevention apparatus, can strengthen the moisture-proof characteristic of joint area, play double-deck damp proof effect.
The technical scheme that its technical problem that solves the utility model adopts is, a flexible damp proof cover is provided with a stay pipe after by mechanical expansion therein, stay pipe makes the damp proof cover of elasticity keep expansion state, after taking stay pipe apart, the effect that elasticity is damp proof to be enclosed within self elastic force is shunk automatically down to tighten and is being played damp proof effect by coating is outside, when flexible damp proof cover is isometrical damp proof cover, can adopt a stay pipe to play a supportive role, when adopting the damp proof cover of reducing, can adopt the stay pipe of more than one Different Diameter position to play a supportive role.Stay pipe is being disclosed use in the cold-shrink technology now, its structure and principle this paper no longer describe in detail, when using the technology that the utility model provides, the damp proof cover of elasticity of band stay pipe is socketed in the end of cable intermediate joint, make the transition joint of one end overlap joint, an end spliced cables core takes out stay pipe then from the damp proof cover of elasticity, the damp proof cover of elasticity shrinks thereupon, tightens and plays damp proof effect in the end of cable intermediate joint.
The beneficial effects of the utility model are, are applicable to the damp proof protection of all cable intermediate joints, also are suitable for other the circuit and the damp proof protection of pipeline transition joint.
Description of drawings
Fig. 1 and Fig. 2 are existing cable transition joint application structure figure in practice.
Fig. 3 is the structure chart of an embodiment of the utility model, and Fig. 4 is the structural map of the damp proof cover of this embodiment elasticity.
Fig. 5 is the structure chart of another embodiment of the utility model, and Fig. 6 is the structural map of the damp proof cover of this embodiment elasticity.
Fig. 7 is the structure chart of another embodiment of the utility model.
Among the figure: 1. the damp proof cover of elasticity, 2., 2-1., 2-2. stay pipe, 3. cable intermediate joint, 4.1., 4.2. cable core, 5.1,5.2 fluid sealants.
Embodiment
As can be seen from Figure 1, cable core (4.1) carries out electric field controls, insulation and damp proof protection with after (4.2) are connected by cable intermediate joint (3), and as can be seen, two terminations of cable intermediate joint (3) are circular arc.
As can be seen from Figure 2, cable core (4.1) carries out electric field controls, insulation and damp proof protection with after (4.2) are connected by cable intermediate joint (3), and as can be seen, two terminations of cable intermediate joint (3) are fillet shape.
Fig. 3 is the structure chart of an embodiment of the utility model, as can be seen from the figure, this figure is a structure chart finishing installation behind the taking-up stay pipe, in this embodiment, two terminations of cable intermediate joint (3) are circular arc, during use, respectively the damp proof cover of the elasticity of two band stay pipes (1) is socketed in two ends of cable intermediate joint (3), then stay pipe is taken out from the damp proof cover of elasticity, the damp proof cover of elasticity (1) shrinks thereupon, the transition joint (3) of two stay pipe one end overlap joints, the other end is spliced cables core (4.1), (4.2) respectively.Fig. 4 is the structural map of the damp proof cover of this embodiment elasticity, and as can be seen from the figure, the damp proof cover of elasticity (1) is a damp proof cover of reducing elasticity, and stay pipe (2) plays a supportive role to damp proof cover (1).
Fig. 5 is the structure chart of another embodiment of the utility model, as can be seen from the figure, this figure is a structure chart finishing installation behind the taking-up stay pipe, in this embodiment, two terminations of cable intermediate joint (3) are fillet shape, during use, respectively the damp proof cover of the elasticity of two band stay pipes (1) is socketed in two ends of cable intermediate joint (3), then stay pipe is taken out from the damp proof cover of elasticity, the damp proof cover of elasticity (1) shrinks thereupon, the transition joint (3) of two stay pipe one end overlap joints, the other end is spliced cables core (4.1), (4.2) respectively.Fig. 6 is the structural map of the damp proof cover of this embodiment elasticity, and as can be seen from the figure, the damp proof cover of elasticity (1) is a damp proof cover of reducing elasticity, and stay pipe (2-1) plays dilating effect in different positions, footpath to damp proof cover (1) respectively with (2-2).
Fig. 7 is the structure chart of another embodiment of the utility model, and as can be seen from the figure, this embodiment also is provided with fluid sealant (5.1) and (5.2) respectively at two end interface places of cable intermediate joint (3).
Claims (4)
1. cable intermediate joint wet prevention apparatus, comprise the cable core (4.1) and (4.2), the cable intermediate joint (3) that connect each other, it is characterized in that damp proof cover of shrinkage elasticity (1) of two terminations difference sockets by the stay pipe predilation at cable intermediate joint (3).
2. cable intermediate joint wet prevention apparatus according to claim 1 is characterized in that the damp proof cover of elasticity (1) is a damp proof cover of isometrical elasticity, and described stay pipe (2) is the convergent divergent channel that is complementary with the damp proof cover of described elasticity.
3. cable intermediate joint wet prevention apparatus according to claim 1, it is characterized in that the damp proof cover of elasticity (1) is a damp proof cover of reducing elasticity, described stay pipe (2-1) and (2-2) be respectively with the damp proof cover of described reducing elasticity independently separating of being complementary at the passive convergent divergent channel in Different Diameter position.
4. according to the described cable intermediate joint wet prevention apparatus of above arbitrary claim, it is characterized in that two end interface places that also are included in cable intermediate joint are provided with fluid sealant (5.1), (5.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620147929 CN200997512Y (en) | 2006-10-26 | 2006-10-26 | Damp-proof device of cable intermediate connecter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620147929 CN200997512Y (en) | 2006-10-26 | 2006-10-26 | Damp-proof device of cable intermediate connecter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200997512Y true CN200997512Y (en) | 2007-12-26 |
Family
ID=38995947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620147929 Expired - Lifetime CN200997512Y (en) | 2006-10-26 | 2006-10-26 | Damp-proof device of cable intermediate connecter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200997512Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977899A (en) * | 2016-05-11 | 2016-09-28 | 姜涛 | Fireproof explosion-proof device for intermediate joint of power cables |
| CN117239664A (en) * | 2023-08-29 | 2023-12-15 | 宏源达(宁夏)电力工程设计有限公司 | High-waterproof cable cold-shrinkage intermediate joint and cable intermediate connection method |
-
2006
- 2006-10-26 CN CN 200620147929 patent/CN200997512Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977899A (en) * | 2016-05-11 | 2016-09-28 | 姜涛 | Fireproof explosion-proof device for intermediate joint of power cables |
| CN117239664A (en) * | 2023-08-29 | 2023-12-15 | 宏源达(宁夏)电力工程设计有限公司 | High-waterproof cable cold-shrinkage intermediate joint and cable intermediate connection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071226 |
|
| EXPY | Termination of patent right or utility model | ||
| DD01 | Delivery of document by public notice |
Addressee: Shenzhen Woer Heat-Shrinkable Material Co., Ltd. Document name: Notification of Expiration of Patent Right Duration |