CN104390850A - Clamp for fixing direct current submarine cable - Google Patents
Clamp for fixing direct current submarine cable Download PDFInfo
- Publication number
- CN104390850A CN104390850A CN201410529846.4A CN201410529846A CN104390850A CN 104390850 A CN104390850 A CN 104390850A CN 201410529846 A CN201410529846 A CN 201410529846A CN 104390850 A CN104390850 A CN 104390850A
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- China
- Prior art keywords
- clamp
- sandwich
- screw
- submarine cable
- direct current
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Abstract
The invention discloses a clamp for fixing a direct current submarine cable. The clamp comprises a clamp body which is provided with a through taper hole, a taper sandwich core which has conicity the same as that of the taper hole, is provided with an axial through hole and can be connected to the clamp body by being inserted into the taper hole, and a retaining member which is fixedly connected to an armor layer on the surface of a submarine cable and presses against the sandwich core. Through cooperation between the taper sandwich core and the clamp body with the through taper hole, the clamp realizes stretching and clamping of the submarine cable simultaneously. Through arrangement of a double-head screw and left- and right-handed screwed holes, screw rotation is transformed into screw linear displacement so that submarine cable tensioning and loosening can be adjusted optionally. The clamp has a simple structure and is convenient for use.
Description
Technical field
The present invention relates to a kind of fixture.
Background technology
In prior art, when carrying out mechanical test to direct current sea cable, the major way of its stationary fixture adopts plumbous cast, and concrete grammar is stretched into one end of direct current sea cable to fill with lead stamp tool, then the lead dissolved by high temperature pours in mould; After lead solidifies and cools, open mould, lead now and extra large cable-end portion form one; Again plumbous body is arranged in corresponding fixture, then complete the fixing of extra large cable, but this method exists some defects, as long in manufactured required man-hour, thus affect testing efficiency; Instrument needed for fixture installation is many; Installation steps are loaded down with trivial details, with high costs; The lead of high temperature melt can damage the performance of direct current sea cable, impact, and Long contact time also can cause personnel poisoning to follow-up test figure.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of fixture that can be used for fixing direct current sea cable, it can easily and effectively clamp extra large cable, and can regulate the tensioning degree of extra large cable.
The technical solution adopted for the present invention to solve the technical problems is:
Can be used for a fixture for fixing direct current sea cable, include
Clamp, clamp is provided with its through bellmouth;
The sandwich of taper, itself and bellmouth have identical tapering, are provided with axial through hole thereon, and sandwich is connected with clamp by the mode be inserted in bellmouth;
Retaining part, the sheath consolidation on itself and extra large cable surface, and support sandwich.
As the further improved procedure of such scheme, in through hole, be provided with screw thread.
As the further improved procedure of such scheme, upper and lower sandwich is provided with some grooves.
As the further improved procedure of such scheme, comprise the double threaded screw of at least one, its left end is left-hand thread (LHT), and right-hand member is right-hand thread, and clamp is provided with first threaded hole suitable with right-hand thread, and screw rod can screw in along it or screw out; Also comprise crossbeam, which is provided with second threaded hole suitable with left-hand thread (LHT), and be connected with screw rod by it.
As the further improved procedure of such scheme, clamp is divided into symmetrical upper clamp and lower clamp, and the two is dismountable connects as one.
As the further improved procedure of such scheme, sandwich is divided into symmetrical upper core and lower core, and the two is dismountable connects as one.
The invention has the beneficial effects as follows:
By the cooperation between the sandwich of taper and the clamp of band bellmouth, make also to complete the clamping of fixture to extra large cable while extra large cable carries out stretching; By arranging double threaded screw and left and right hand thread hole, be straight-line displacement by the translating rotation of screw rod, thus can arbitrarily regulate the tensioning of extra large cable with lax, structure of the present invention is simple, easy to use.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the one-piece construction schematic diagram of one embodiment of the invention;
Fig. 2 is the structural representation of a sandwich of the present invention embodiment
Fig. 3 is the front elevation of one embodiment of the invention;
Fig. 4 be in Fig. 3 along A to cut-open view.
Embodiment
Be clearly and completely described below with reference to embodiment and the accompanying drawing technique effect to design of the present invention, concrete structure and generation, to understand object of the present invention, scheme and effect fully.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
It should be noted that, if no special instructions, when a certain feature is called as " fixing ", " connection " in another feature, it can directly be fixed, be connected in another feature, also indirectly can fix, be connected in another feature.In addition, it is only relative to the mutual alignment relation of each ingredient of the present invention in accompanying drawing that the upper and lower, left and right used in the present invention etc. describe.
In addition, unless otherwise defined, all technology used herein are identical with the implication that those skilled in the art understand usually with scientific terminology.The term used in instructions is herein to describe specific embodiment, instead of in order to limit the present invention.Term as used herein " and/or " comprise the arbitrary combination of one or more relevant Listed Items.
With reference to Fig. 1, show the structural representation of one embodiment of the invention, comprise clamp 10, be provided with the bellmouth run through in the center of clamp 10, bellmouth is arranged along the draw direction of direct current sea cable.
With reference to Fig. 2, be also provided with the sandwich 20 suitable with bellmouth, it has identical tapering with described bellmouth, and therefore sandwich 20 can insert in bellmouth.Circular through hole 201 is had in the center of sandwich 20, its internal diameter is slightly less than the diameter of extra large cable to be held, so that step up extra large cable, the inwall of through hole 201 is also provided with some unshowned anti-skid structures, preferably, be covered with screw thread at whole inwall.
With reference to Fig. 3 and Fig. 4, in the present embodiment, in order to convenient installation, clamp 10 and sandwich 20 are divided into symmetrical two parts, i.e. upper clamp 11, lower clamp 12, upper sandwich 21 and lower core 22, wherein to go up between lower clamp by securing member and web joint 23 is dismountable connects as one.When needs coordinate clamp, sandwich and extra large cable, only need unload securing member and web joint 23, just can make lower clamp separately, thus can very easily sandwich and extra large cable be put in the inner, install quickness and high efficiency.
Be provided with circular retaining part 30 at the afterbody of sandwich 20, preferably, it is also divided into symmetrical two parts and is connected by securing member.Retaining part 30 is integrated by the inwall of its center pit and the appearance sheath consolidation of extra large cable, and wherein a kind of preferred consolidation style is welding.After being connected with extra large cable one, retaining part 30 supports the tail end of sandwich 20, pretension can be born before sandwich 20 clamps extra large cable like this, deviate from from sandwich 20 before preventing direct current sea cable not to be clamped, give the power entering bellmouth with sandwich 20 simultaneously when extra large cable stretches.
The wall thickness of sandwich 20 reduces gradually along its axis, until form thin-wall construction at small end, the sidewall of sandwich 20 is evenly equipped with some strias 202, and it can increase the elasticity of sandwich 20, and sandwich 20 can radially be shunk or expand.After clamp, sandwich and extra large cable being assembled, along with moving forward of extra large cable, sandwich 20 progresses in bellmouth, and under the extruding of hole inwall, sandwich 20 shrinks, and by screw thread pinning sea cable tightly, completes fixing.
Because the extra large cable for testing is general longer, in order to convenient operation when fixing, the length surplus that it is certain can be given, and the stroke of afterburning equipment (as oil cylinder, leading screw etc.) is less, following situation may be caused: equipment arrives range when drawing, but still can not offset length surplus, thus enough tractive force cannot be provided.In order to address this problem, with reference to Fig. 1,3 and 4, the present invention is also provided with double threaded screw 40 and crossbeam 50, and double threaded screw 40 left end is provided with left-hand thread (LHT), right-hand member is provided with right-hand thread, and it is connected with clamp 10 by the first syndeton be arranged on clamp 10; Crossbeam 50 is provided with the second syndeton, and the left end of double threaded screw 40 screws in the second syndeton.Fixed by crossbeam 50, at installation initial stage turn double threaded screw 40 left, under the effect of left-hand thread (LHT) and right-hand thread, clamp 10 is away from crossbeam 50, and extra large cable relaxes, and is convenient to installation operation; After installing, turn screw rod to the right, clamp 10 gradually near crossbeam 50, thus balances out length surplus.
Preferably, the first syndeton is right-handed nut, and the second syndeton is left-hand threaded nut.
In order to make loading process more even, double threaded screw 40 is preferably 2, its setting parallel to each other.
More than that better enforcement of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent distortion or replacement are all included in the application's claim limited range.
Claims (6)
1. can be used for a fixture for fixing direct current sea cable, it is characterized in that: include
Clamp, described clamp is provided with its through bellmouth;
The sandwich of taper, it has identical tapering with described bellmouth, is provided with axial through hole thereon, and described sandwich is connected with described clamp by the mode be inserted in described bellmouth;
Retaining part, the sheath consolidation on itself and extra large cable surface, and support residence and state sandwich.
2. according to the fixture described in claim 1, it is characterized in that: in described through hole, be provided with screw thread.
3. fixture according to claim 1, is characterized in that: described upper and lower sandwich is provided with some grooves.
4. the fixture according to any one of claims 1 to 3, it is characterized in that: the double threaded screw comprising at least one, its left end is left-hand thread (LHT), right-hand member is right-hand thread, described clamp is provided with first syndeton suitable with described right-hand thread, and described screw rod can screw in along it or screw out; Also comprise crossbeam, which is provided with second syndeton suitable with described left-hand thread (LHT), and be connected with described screw rod by it.
5. fixture according to claim 4, is characterized in that: described clamp is divided into symmetrical upper clamp and lower clamp, and the two is dismountable connects as one.
6. fixture according to claim 4, is characterized in that: described sandwich is divided into symmetrical upper core and lower core, and the two is dismountable connects as one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529846.4A CN104390850A (en) | 2014-10-09 | 2014-10-09 | Clamp for fixing direct current submarine cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529846.4A CN104390850A (en) | 2014-10-09 | 2014-10-09 | Clamp for fixing direct current submarine cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104390850A true CN104390850A (en) | 2015-03-04 |
Family
ID=52608781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410529846.4A Pending CN104390850A (en) | 2014-10-09 | 2014-10-09 | Clamp for fixing direct current submarine cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104390850A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883839A (en) * | 2019-03-28 | 2019-06-14 | 广东工业大学 | A kind of stretcher of material sample and system for infrared spectrum analysis |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629884A (en) * | 2009-08-20 | 2010-01-20 | 王剑薇 | Clamping apparatus for improving precision of material tester |
| CN201728624U (en) * | 2010-07-16 | 2011-02-02 | 梁云清 | Rope clamping device |
| CN202562808U (en) * | 2012-05-07 | 2012-11-28 | 长春新试验机有限责任公司 | Sample prestress clamping device |
| CN102928289A (en) * | 2012-11-07 | 2013-02-13 | 无锡建仪仪器机械有限公司 | Tensile test clamping device for universal testing machine |
| CN203629955U (en) * | 2013-11-28 | 2014-06-04 | 江苏科技大学 | Steel wire rope clamping device |
-
2014
- 2014-10-09 CN CN201410529846.4A patent/CN104390850A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629884A (en) * | 2009-08-20 | 2010-01-20 | 王剑薇 | Clamping apparatus for improving precision of material tester |
| CN201728624U (en) * | 2010-07-16 | 2011-02-02 | 梁云清 | Rope clamping device |
| CN202562808U (en) * | 2012-05-07 | 2012-11-28 | 长春新试验机有限责任公司 | Sample prestress clamping device |
| CN102928289A (en) * | 2012-11-07 | 2013-02-13 | 无锡建仪仪器机械有限公司 | Tensile test clamping device for universal testing machine |
| CN203629955U (en) * | 2013-11-28 | 2014-06-04 | 江苏科技大学 | Steel wire rope clamping device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883839A (en) * | 2019-03-28 | 2019-06-14 | 广东工业大学 | A kind of stretcher of material sample and system for infrared spectrum analysis |
| CN109883839B (en) * | 2019-03-28 | 2022-04-19 | 广东工业大学 | Material sample stretching device and system for infrared spectroscopy |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20180724 |
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| AD01 | Patent right deemed abandoned |