CN203056532U - Cable bushing - Google Patents
Cable bushing Download PDFInfo
- Publication number
- CN203056532U CN203056532U CN 201320082436 CN201320082436U CN203056532U CN 203056532 U CN203056532 U CN 203056532U CN 201320082436 CN201320082436 CN 201320082436 CN 201320082436 U CN201320082436 U CN 201320082436U CN 203056532 U CN203056532 U CN 203056532U
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- CN
- China
- Prior art keywords
- cable
- end cap
- ring
- protecting tube
- silicone sealant
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a cable bushing, specifically to a protective bushing which is connected by an end cap, has double seals of silicone sealant and a sealing ring, and improves the tensile strength of a cable connected and the waterproof and insulating properties of a cable joint. The cable bushing comprises a protecting tube, a back-up ring, silicone sealant, an end cap, a sealing ring and a clamping cap, and is characterized in that both ends of the protecting tube are provided with end caps, the protecting tube is arranged on the center of cable joints, silicone sealant is filled between the back-up ring in the protecting tube and the end caps, and sealing rings are placed between the end caps and a cable. The clamping cap and the end caps are fastened through screw threads, and the fittings at both ends of the protecting tube are identical but opposite in direction. The cable bushing is excellent in sealing of the cable joints, excellent in insulation degree, and a cable connected is high in tensile strength. The purposes of double sealing of a cable connected and improving a tensile strength of a cable connected are achieved.
Description
Technical field
The utility model relates to a kind of coupling box, relates in particular to a kind of silicone sealant of end cap connection and the raising of sealing ring dual-seal and is connected cable tensile strength and the protection tube that increases cable joint position water resistance and insulation property.
Background technology
In industrial cable installment work, because the concrete condition of job site changes, cable can not complete stretching use, often runs into actual installation length greater than the length of existing cable, when cable keep in repair, also can run into the situation of cable connection.When cable need connect, the method for known technology was to adopt distribution box, underground cable well, twine method such as mackintosh guarantee cable insulation outside cable.The cable that adopts above method out of doors wet environment, underground aquifer, wait adverse circumstances just can not ensure the insulation property of cable under water.When especially under adverse circumstances, constructing cable is carried out tractive, because how cable can not make length with the connection length of cable core when connecting identical, cable core is not subjected to external force traction simultaneously in length, can cause the link position insulating barrier to tear, the cable core fracture, cause serious hidden danger and unavoidable disastrous effect for construction safety and Electrical Safety, cause the loss that to retrieve.Therefore, if the cable length of using in adverse circumstances is not enough or during maintenance, for fear of security incident, the general method of changing cable that adopts solves, though this method is simple, has problems such as long construction period, cost height, difficulty of construction height, integrated cost height.
The patent searching document; though the similar techniques scheme is arranged; patent name is: (patent No.: 201020173740.2) proposed technical scheme is to protect the incoming line place, two ends of housing to be provided with the profile of tooth sealing to cable joint sealing locking protective device; the profile of tooth sealed inside is provided with seal groove and rubber ring; when sealing nut is locked; profile of tooth sealing locking thereupon; reach the tensile strength that improves cable and the purpose of protecting housing seal; but this technical scheme can only be at the cable of civilian small bore; heavy in section industrial cable deadweight is big; stressed big during the pulling cable; the extruding force and the frictional force that only depend on locking nut to produce when construction are to resist cable tension; being subjected to other mechanical forces when especially cable uses produces when moving; the cable protection shell of this patent can not the reliably protecting cable, and when cable passed from seabed deep water, the more dark pressure in seabed was more big; ocean current produces disturbance to cable simultaneously, and the technical scheme of this patent can not guarantee tensile strength and the waterproof sealing performance of cable link position.Nothing has a kind of silicone sealant of end cap connection and the raising of sealing ring dual-seal to be connected cable tensile strength and the protection tube that increases cable joint position water resistance and insulation property at present, and it is open that the patent searching document does not have the new technical scheme of this technology.
Summary of the invention
Technical problem to be solved in the utility model is: for the raising that overcomes existing nothing and have silicone sealant that a kind of end cap connects and sealing ring dual-seal is connected the cable tensile strength and increases the deficiency of the protection tube of cable joint position water resistance and insulation property, the purpose of this utility model is the protection tube that is connected cable tensile strength and increase cable joint position water resistance and insulation property for the raising of the silicone sealant that a kind of end cap connection is provided and sealing ring dual-seal, this stube cable stretch-proof waterproof insulation sleeve pipe, cost is low, good airproof performance to cable joint, insulativity is high and be connected cable tensile strength height, reaches being connected the purpose that cable dual-seal and raising are connected cable tensile strength.
Technological principle of the present utility model is that protecting tube carries out mechanical protection to cable joint, silicone sealant and sealing ring carry out the dual-seal effect to the cable joint that is connected, friction top covers the cable pressure side, the consequence that cable core institute different in size phenomenon after having avoided connecting causes has improved the tensile strength that is connected cable.
The technical scheme of the utility model technical solution problem is: by left friction top, left side wedge sealing ring, left end cap, left side back-up ring, protecting tube, right cable, silicone sealant, right friction top, right wedge sealing ring, right end cap, right back-up ring is formed, it is characterized in that left end cap and right end cap are to be threaded in the two ends of protecting tube, there is left back-up ring the inside, left side of protecting tube, be filled with silicone sealant between the left end cap of protecting tube and the left back-up ring, be filled with silicone sealant between the right end cap of protecting tube and the right back-up ring, a left side friction top and left end cap are to be threaded, left wedge sealing ring is arranged therebetween, right friction top and right end cap are to be threaded, right wedge sealing ring is arranged therebetween, on left cable, be inserted in left friction top and left wedge sealing ring and left end cap and left back-up ring and protecting tube during use successively, reserve cable to be connected, on right cable, be inserted in right friction top and right wedge sealing ring and right end cap and left back-up ring successively, reserve cable to be connected, then after the dislocation connection with cable to be connected, cable joint places the centre of protecting tube, then left back-up ring is pushed in the left side pipe of protecting tube, simultaneously right back-up ring is pushed in the right side pipe of protecting tube, then silicone sealant is filled up the middle space of left back-up ring and protecting tube and left end cap, silicone sealant is filled up the middle space of left back-up ring and protecting tube and right end cap, treat that silicone sealant solidifies substantially and surface when staying obvious nail indenture with nail by pressure energy, when namely reaching final curing hardness 80%, be coated with behind the silicone sealant of 1 millimeters thick protecting tube and left end cap rotation is fastening on the silicone sealant surface that this solidifies substantially, simultaneously that protecting tube and right end cap rotation is fastening, then left wedge sealing ring is pushed the slit between left end cap and the left cable, simultaneously right wedge sealing ring is pushed the slit between right end cap and the right cable, then that left friction top and left end cap rotation is fastening, simultaneously that right friction top and right end cap rotation is fastening, can enter next step construction, reach being connected the purpose that cable dual-seal and raising are connected cable tensile strength.
Key technology of the present utility model is: after silicone sealant fills up the space of back-up ring and end cap centre, smooth surface is smooth, must treat that silicone sealant solidifies substantially and surface when staying obvious nail indenture with nail by pressure energy, when namely reaching final curing hardness 80%, being coated with on basic silicone sealant surface of solidifying could be fastening with end cap behind the silicone sealant of 1 millimeters thick.
Compare with conventional art, the useful technique effect that the utility model is obtained is: cost is low, to the good airproof performance of cable joint, insulativity is high and be connected cable tensile strength height, reaches being connected the purpose that cable dual-seal and raising are connected cable tensile strength.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is schematic diagram of the present utility model.
1. left cables among the figure, 2. left friction top, 3. left wedge sealing ring, 4. left end cap, 5. left back-up ring, 6. protecting tube, 7. right cable, 8. silicone sealant, 9-1,9-2,9-3,9-4. cable joint, 12. right friction top, 13. right wedge sealing rings, 14. right end caps, 15. right back-up rings.
Embodiment
Below in conjunction with specific embodiment the utility model is described further, but the desired protection range of the utility model is not limited to the described scope of specific embodiment.
The utility model structure and using method are as follows: the utility model is by left friction top 2, left side wedge sealing ring 3, left end cap 4, left side back-up ring 5, protecting tube 6, right cable 7, silicone sealant 8, right friction top 12, right wedge sealing ring 13, right end cap 14, right back-up ring 15 is formed, it is characterized in that left end cap 4 and right end cap 14 are to be threaded in the two ends of protecting tube 6, there is left back-up ring 5 inside, left side of protecting tube 6, be filled with silicone sealant 8 between the left end cap 4 of protecting tube 6 and the left back-up ring 5, be filled with silicone sealant 8 between the right end cap 14 of protecting tube 6 and the right back-up ring 15, a left side friction top 2 and left end cap 4 are to be threaded, left wedge sealing ring 3 is arranged therebetween, right friction top 12 and right end cap 14 are to be threaded, right wedge sealing ring 13 is arranged therebetween, on left cable 1, be inserted in left friction top 2 and left wedge sealing ring 3 and left end cap 4 and left back-up ring 5 and protecting tube 6 during use successively, reserve cable to be connected, on right cable 7, be inserted in right friction top 12 and right wedge sealing ring 13 and right end cap 14 and left back-up ring 5 successively, reserve cable to be connected, then after the dislocation connection with cable to be connected, cable joint 9-1,9-2,9-3,9-4 places the centre of protecting tube 6, then left back-up ring 5 is pushed in the left side pipe of protecting tube 6, simultaneously right back-up ring 15 is pushed in the right side pipe of protecting tube 6, then silicone sealant 8 is filled up the space of left back-up ring 5 and protecting tube 6 and left end cap 4 centres, silicone sealant 8 is filled up the space of left back-up ring 15 and protecting tube 6 and right end cap 14 centres, treat that silicone sealant solidifies substantially and surface when staying obvious nail indenture with nail by pressure energy, when namely reaching final curing hardness 80%, be coated with behind the silicone sealant of 1 millimeters thick protecting tube 6 is fastening with left end cap 4 rotations on the silicone sealant surface that this solidifies substantially, simultaneously that protecting tube 6 is fastening with right end cap 14 rotations, then left wedge sealing ring 3 is pushed the slit between left end cap 4 and the left cable 1, simultaneously right wedge sealing ring 13 is pushed the slit between right end cap 14 and the right cable 7, then that left friction top 2 is fastening with left end cap 4 rotations, simultaneously that right friction top 12 is fastening with right end cap 14 rotations, can enter next step construction, reach being connected the purpose that cable dual-seal and raising are connected cable tensile strength.
Claims (1)
1. coupling box, by left friction top (2), left side wedge sealing ring (3), left end cap (4), left side back-up ring (5), protecting tube (6), right cable (7), silicone sealant (8), right friction top (12), right wedge sealing ring (13), right end cap (14), right back-up ring (15) is formed, it is characterized in that left end cap (4) and right end cap (14) are to be threaded in the two ends of protecting tube (6), there is left back-up ring (5) inside, left side of protecting tube (6), be filled with silicone sealant (8) between the left end cap (4) of protecting tube (6) and the left back-up ring (5), be filled with silicone sealant (8) between the right end cap (14) of protecting tube (6) and the right back-up ring (15), a left side friction top (2) with left end cap (4) to be threaded, left wedge sealing ring (3) is arranged therebetween, right friction top (12) and right end cap (14) have right wedge sealing ring (13) therebetween to be threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320082436 CN203056532U (en) | 2013-02-24 | 2013-02-24 | Cable bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320082436 CN203056532U (en) | 2013-02-24 | 2013-02-24 | Cable bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203056532U true CN203056532U (en) | 2013-07-10 |
Family
ID=48739452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320082436 Expired - Fee Related CN203056532U (en) | 2013-02-24 | 2013-02-24 | Cable bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203056532U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305327A (en) * | 2015-12-04 | 2016-02-03 | 中国航空工业集团公司洛阳电光设备研究所 | Low pressure cable sealing device and manufacturing method thereof |
| CN105490216A (en) * | 2014-09-18 | 2016-04-13 | 国家电网公司 | Maintenance electric power cable protective casing pipe and use method |
| CN106816835A (en) * | 2017-02-24 | 2017-06-09 | 国网山东省电力公司临沂供电公司 | Single cable docking facilities |
| CN108711487A (en) * | 2018-06-11 | 2018-10-26 | 河南森源电气股份有限公司 | A kind of transformer and its cable interface sealing structure |
| CN112229529A (en) * | 2020-08-20 | 2021-01-15 | 宁波送变电建设有限公司永耀科技分公司 | Cable joint temperature measuring device |
-
2013
- 2013-02-24 CN CN 201320082436 patent/CN203056532U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490216A (en) * | 2014-09-18 | 2016-04-13 | 国家电网公司 | Maintenance electric power cable protective casing pipe and use method |
| CN105305327A (en) * | 2015-12-04 | 2016-02-03 | 中国航空工业集团公司洛阳电光设备研究所 | Low pressure cable sealing device and manufacturing method thereof |
| CN106816835A (en) * | 2017-02-24 | 2017-06-09 | 国网山东省电力公司临沂供电公司 | Single cable docking facilities |
| CN106816835B (en) * | 2017-02-24 | 2018-01-12 | 国网山东省电力公司临沂供电公司 | Single cable docking facilities |
| CN108711487A (en) * | 2018-06-11 | 2018-10-26 | 河南森源电气股份有限公司 | A kind of transformer and its cable interface sealing structure |
| CN112229529A (en) * | 2020-08-20 | 2021-01-15 | 宁波送变电建设有限公司永耀科技分公司 | Cable joint temperature measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20150224 |
|
| EXPY | Termination of patent right or utility model |