CN201838940U - Waterproof drawing head of cable - Google Patents
Waterproof drawing head of cable Download PDFInfo
- Publication number
- CN201838940U CN201838940U CN2010205916064U CN201020591606U CN201838940U CN 201838940 U CN201838940 U CN 201838940U CN 2010205916064 U CN2010205916064 U CN 2010205916064U CN 201020591606 U CN201020591606 U CN 201020591606U CN 201838940 U CN201838940 U CN 201838940U
- Authority
- CN
- China
- Prior art keywords
- cable
- drawing head
- spring thimble
- drag spring
- gland
- 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 - Lifetime
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Abstract
The utility model discloses a waterproof drawing head of a cable. The cable comprises a corrugated sheath, an insulating layer and a cable core, wherein the cable core extends out of the insulating layer. The waterproof drawing head comprises a lining gland, a drawing sleeve, a drawing cap and an outer sheath, the lining gland is in the shape of a basin and covers the opening side of the corrugated sheath, one end of the drawing sleeve is provided with a blind hole, the drawing sleeve covers an extension end of the cable core, the drawing sleeve is in threaded connection with the drawing cap, and one end of the outer sheath is fixed to the outer edge of the lining gland while the other end of the outer sheath is fixed with the outer edge of the drawing cap. The drawing head of the cable is subject to secondary soldering seal, so that water seepage of the cable duet to the fact that the outer soldering seal of the drawing head is broken and cracked during usage can be eliminated, quality of the cable is guaranteed better, working efficiency of laying construction is increased, and great labor and material resources for after service are saved.
Description
Technical field
The utility model relates to a kind of cable waterproof drawing head, particularly relates to a kind of high pressure, extra-high-tension cable waterproof drawing head.
Background technology
In the cable laying operation of high pressure and extra-high-tension cable, how to prevent effectively that cable from intaking is the long-term indeterminable problems of all manufacturers in trench laying.In the past, though taked end socket, modes such as welding in actual laid processes, because cable trough is crooked irregular, caused the cable drawing head weld seam to be broken by pultrusion through regular meeting, when in the ditch water being arranged, then will cause water inlet problem in the cable.For a long time, can only take to blow into cable by pressure-air afterwards, water is blown out gradually dry up, generally blow 2～3 days always, not only bothersome but also waste time.
The utility model content
Technical problem to be solved in the utility model provides a kind of cable waterproof drawing head that in use can not cause the cable water inlet because of the place's pultrusion of outer sealing after breaking.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: the cable waterproof drawing head, described cable comprises the ripple protecting pipe, insulating barrier, cable conductor, described cable conductor stretches out in described insulating barrier, this waterproof drawing head comprises the liner gland, drag spring thimble, traction cap, outer pillar, described liner gland is a peviform, described liner gland encases described ripple protecting pipe open side, described drag spring thimble one end is provided with a blind hole, described drag spring thimble encases the external part of described cable conductor, described drag spring thimble and described traction cap are by being threaded, the outer rim of described outer pillar one end and described liner gland is fixed, and the outer rim of the other end and described traction cap is fixed.
As preferably, be provided with O type circle between described liner gland, the drag spring thimble, to strengthen the sealing of this waterproof drawing head inside.
As preferably, the outside of described O type circle is provided with round nut, and described round nut is sheathed on the described drag spring thimble, so that fixing O type circle.
As preferably, the outer end of described traction cap is by the suspension hook draw ring that has been threaded, so that this drawing head is dilatory.
The utility model is owing to adopted technique scheme, cable drawing head is carried out the secondary sealing, make this drawing head in use can not cause the cable water inlet after breaking because of the place's pultrusion of outer sealing, cable quality has obtained better assurance, improve the operating efficiency of cable laying operation, thereby saved the manpower and materials of a large amount of after-sale services aspect.
Description of drawings
Fig. 1 is the structural representation of the utility model cable waterproof drawing head.
Fig. 2 is the structural representation of liner gland.
Fig. 3 is the structural representation of drag spring thimble.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
Figure 1 shows that the utility model cable waterproof drawing head, this waterproof drawing head comprises liner gland 7, drag spring thimble 11, traction cap 15, outer pillar 13, and the basic structure of high pressure, extra-high-tension cable is multilayers such as cable conductor 12, internal shield 1, insulating barrier 2, outer shielding layer 3, aluminium ripple oversheath 4.
As shown in Figure 2, described liner gland 7 is a peviform, described liner gland 7 encases described ripple protecting pipe 4 open side, as shown in Figure 3, described drag spring thimble 11 1 ends are provided with a blind hole 17, and described drag spring thimble 11 encases the external part of described cable conductor 12, and described drag spring thimble 11 and described traction cap 15 are by being threaded, the outer rim of described outer pillar 13 1 ends and described liner gland 7 is fixed, and the outer rim of the other end and described traction cap 15 is fixed.Be provided with O type circle 8 between described liner gland 7, the drag spring thimble 11, after drawing head is broken by pultrusion in ditch,, prevented that effectively water enters cable in the ditch, thereby reached waterproof action because O type circle 8 is arranged.The outside of described O type circle 8 is provided with round nut 10, and described round nut 10 is sheathed on the described drag spring thimble 11.The outer end of described traction cap 15 is by the suspension hook draw ring 16 that has been threaded.
The concrete end socket step of the utility model cable waterproof drawing head is as follows: at first the insulating barrier 2 of aluminium ripple oversheath 4 and the inside is peelled off, divesting length reserves suitable cable core length according to the degree of depth of drag spring thimble 11 and gets final product, aluminium ripple oversheath 4 otch keep smooth as far as possible, liner gland 7 is inserted in cable core and shifts the end onto, aluminium ripple oversheath 4 open side are encased, at this moment, carry out sealing one time, it is firm with aluminium ripple oversheath 4 sealings to be about to liner gland 7.After one time sealing is good, treat its cooling, the drag spring thimble 11 of then cable conductor 12 being packed into must install at the end when packing into, in drag spring thimble 11 stage casing crimping two to three roads, guarantees that crimping is solid and reliable with hydraulic tongs.The O type of packing into successively circle 8, plain washer 9, by the screw-in gradually of round nut 10, O type circle closely is pressed on the liner gland 7.Screw in outer pillar 13 of the aluminium that welded and traction cap 15 on the drag spring thimbles 11 and tighten, carry out the secondary sealing then, it is firm with aluminium ripple oversheath 4 sealings to be about to the outer pillar 13 of aluminium.At this moment, the sealing work of waterproof drawing head is finished, and only needs again suspension hook draw ring 16 to be screwed in traction cap 15 and gets final product.Since taked the secondary sealing, therefore, even the weld seam of outer pillar 13 of aluminium and aluminium ripple oversheath 4 is broken by pultrusion in cable laying operation, because the inside still has one deck sealing then to seal water and enters in the cable from aluminium ripple oversheath 4.And adopted the sealing means of O type circle at the cable conductor place, even if drag spring thimble has a large amount of water outward, also can not enter, thereby reach waterproof effect from the cable core seepage.
Claims (4)
1. cable waterproof drawing head, described cable comprises ripple protecting pipe (4), insulating barrier (2), cable conductor (12), described cable conductor (12) stretches out in described insulating barrier (2), it is characterized in that: this waterproof drawing head comprises liner gland (7), drag spring thimble (11), traction cap (15), outer pillar (13), described liner gland (7) is a peviform, described liner gland (7) encases described ripple protecting pipe (4) open side, described drag spring thimble (11) one ends are provided with a blind hole (17), described drag spring thimble (11) encases the external part of described cable conductor (12), described drag spring thimble (11) and described traction cap (15) are by being threaded, the outer rim of described outer pillar (13) one ends and described liner gland (7) is fixed, and the outer rim of the other end and described traction cap (15) is fixed.
2. according to the described cable waterproof drawing head of claim 1, it is characterized in that: be provided with O type circle (8) between described liner gland (7), the drag spring thimble (11).
3. according to the described cable waterproof drawing head of claim 2, it is characterized in that: the outside of described O type circle (8) is provided with round nut (10), and described round nut (10) is sheathed on the described drag spring thimble (11).
4. according to the described cable waterproof drawing head of claim 1, it is characterized in that: the outer end of described traction cap (15) is by the suspension hook draw ring (16) that has been threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205916064U CN201838940U (en) | 2010-10-29 | 2010-10-29 | Waterproof drawing head of cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205916064U CN201838940U (en) | 2010-10-29 | 2010-10-29 | Waterproof drawing head of cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201838940U true CN201838940U (en) | 2011-05-18 |
Family
ID=44009040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205916064U Expired - Lifetime CN201838940U (en) | 2010-10-29 | 2010-10-29 | Waterproof drawing head of cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201838940U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035150A (en) * | 2010-10-29 | 2011-04-27 | 浙江晨光电缆股份有限公司 | Waterproof drawing head of cable and mounting method thereof |
| CN110994505A (en) * | 2019-11-29 | 2020-04-10 | 北京中科中电电力工程管理有限公司 | Cable wall-penetrating sheath |
-
2010
- 2010-10-29 CN CN2010205916064U patent/CN201838940U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035150A (en) * | 2010-10-29 | 2011-04-27 | 浙江晨光电缆股份有限公司 | Waterproof drawing head of cable and mounting method thereof |
| CN102035150B (en) * | 2010-10-29 | 2012-09-05 | 浙江晨光电缆股份有限公司 | Waterproof drawing head of cable and mounting method thereof |
| CN110994505A (en) * | 2019-11-29 | 2020-04-10 | 北京中科中电电力工程管理有限公司 | Cable wall-penetrating sheath |
| CN110994505B (en) * | 2019-11-29 | 2020-12-22 | 北京中科中电电力工程管理有限公司 | Cable wall-penetrating sheath |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110518 Effective date of abandoning: 20120905 |