CN101882777A - Cable joint box capable of adopting different modes to conduct waterproofing treatment on main cables - Google Patents
Cable joint box capable of adopting different modes to conduct waterproofing treatment on main cables Download PDFInfo
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- CN101882777A CN101882777A CN2009103021263A CN200910302126A CN101882777A CN 101882777 A CN101882777 A CN 101882777A CN 2009103021263 A CN2009103021263 A CN 2009103021263A CN 200910302126 A CN200910302126 A CN 200910302126A CN 101882777 A CN101882777 A CN 101882777A
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Abstract
The invention discloses a cable joint box capable of adopting different modes to conduct waterproofing treatment on main cables. The cable joint box comprises a protecting cover and at least one cable inlet-outlet end surface; and the cable inlet-outlet end surface is provided with at least three hollow tubular columns, wherein, one tubular column can be used for two main cables preparing to use heat shrinkable tubes to conduct waterproofing treatment to pass through the cable joint box, and each of the other two hollow tubular columns can be used for the main cable preparing to use an elastic rubber shrinkable tube to conduct waterproofing treatment to pass through the cable joint box, so as to solve various problems encountered when a communication cable joint box in the prior art conducts waterproofing treatment on the main cable inlet and outlet.
Description
Technical field
The invention relates to a kind of cable connection box of taking different modes to carry out trunk cable water-proofing treatment, this cable connection box comprises protecting cover and at least one cable turnover end face, this cable turnover end face has at least three hollow column jackets, one of them hollow column jacket can pass in and out this cable connection box with the trunk cable that heat-shrink tube carries out waterproof for passing two preparations, two hollow column jackets in addition, each hollow column jacket can pass in and out this cable connection box with the trunk cable that elastic rubber shrinkage pipe carries out waterproof for passing a preparation.Especially refer to a kind ofly both can continue or difference when continuing in straight line, taking needn't tool using, needn't use burning things which may cause a fire disaster, the mode of easy construction safety, carry out water-proofing treatment with elastic rubber shrinkage pipe for the trunk cable that passes in and out cable connection box, can draw when connecing the situation that difference continues running into again midway, needn't use thermal shrinkage type cable connection box instead, just can adopt heat-shrink tube to carry out the cable connection box of water-proofing treatment for the trunk cable of turnover cable connection box, can solve cable connection box of the prior art, the setting that its trunk cable is imported and exported, the water-proofing treatment of carrying out the trunk cable with heat-shrink tube or elastic rubber shrinkage pipe a kind of mode wherein only can be provided, cause telecommunications dealer cost to increase and influence the problem of construction safety.
Background technology
Because the cable laying of global various countries, all pursue undergroundization as far as possible, and undergroundization of cable lays mode based on pipeline, the used cable connection box of cable of underground piping continues, all be to be seated in the manhole and hand hole of cable underground pipeline, and all long-term a large amount of ponding of many manholes and hand hole, so the splice tray that is placed in one also thereby throughout the year is immersed in the water.As shown in Figure 1, be put in the pipeline generalized section of undergroundization for cable connection box cloth.In Fig. 1, manhole cover 11,12 belows are provided with manhole 111,121, place cable connection box 13,14 in the manhole 111,121, cable connection box 13 and 14 are connected with cable 16, and cable connection box 13,14 is connected with other cable connection box (not shown) with cable 15,17 respectively again.On practice, cable 15,16,17 rolling in the manhole 111,121 are curved.No matter be the employed cable connection box of cable or optical cable, if its waterproof effect is not good, the outer ponding of splice tray bleeds in the splice tray, will influence the transmission quality of cable and quicken the deterioration of cable, the useful life that causes the circuit transmission obstacle to take place and reduce cable.
In the prior art, in the optical cable laying of all kinds of wire transmission industries such as telecommunications, cable TV, supervisory control system and the technical field that continues, thermal shrinkage type cable connection box was widely used many years already.Though thermal shrinkage type cable connection box have manufacturing cost lower, be suitable for cable external diameter scope big, apply easier plurality of advantages such as fast and widely used by industry; But the problem that thermal shrinkage type cable connection box is easier to leak, the but shortcoming that is denounced, and thermal shrinkage type cable connection box with burn roasting finish first cable and import and export the heat-shrink tube that waterproof uses after, when once again when burning the heat-shrink tube that other cable is imported and exported on roasting this optical cable turnover end face, usually cause and contiguously roasted that the heat-shrink tube of finishing is heated once again and softening getting loose causes splice tray to leak.Shown in Fig. 2 (A), be the vertical view of the thermal shrinkage type cable connection box of prior art.In Fig. 2 (A), the cable turnover end face 21 of thermal shrinkage type cable connection box 20 (abbreviation splice tray) has hollow column jacket 22,23A, 23B, 23C, 23D, 23E, this hollow column jacket 22,23A～23E were airtight before not penetrating cable, when penetrating cable, just get through by needs in feasible modes such as for example cutting or knock open, trunk cable 24A, 24B pass hollow column jacket 22 and enter splice tray 20, press from both sides 29 at interval between trunk cable 24A, the 24B and with the difference that heat-shrink tube is used. Difference cable 25A, 25B, 25C, 25D, 25E pass hollow column jacket 23A～23E respectively and enter splice tray 20.Shown in Fig. 2 (B) and Fig. 2 (C),, the thermal shrinkage type cable connection box of prior art handles schematic diagram for carrying out waterproof construction.In Fig. 2 (B) and Fig. 2 (C), thermal shrinkage type cable connection box 30 (abbreviation splice tray) is made up of protecting cover 22, cable turnover end face 31 and hollow column jacket 32,33A, 33B at least.The user penetrates the hollow column jacket 32 that is with heat-shrink tube 36 with trunk cable 24A, 24B earlier and enters in the splice tray via opening 38A, press from both sides at interval between trunk cable 24A, the 24B and with the difference that heat-shrink tube is used, to burn roasting heat-shrink tube 36 and difference folder, finish trunk cable 24A, 24B water-proofing treatment again in splice tray cable turnover end face.Difference cable 35B then penetrates the hollow column jacket 33B that is with heat-shrink tube 37 and enters in the splice tray via opening 38B, again to burn roasting heat-shrink tube 33B, to finish the water-proofing treatment of difference cable 35B at splice tray cable turnover end face.The splicing point of trunk cable 24A, 24B and difference cable 35B is contained in cable and continues in the distribution board 39.But, when burning roasting heat-shrink tube 37, be adjacent to heat-shrink tube 36 Chang Yin that the barbecue of heat-shrink tube 37 finishes and be heated once again and soften, get loose, cause splice tray 30 to leak.In like manner, when importing and exporting the heat-shrink tube of 33A to burn roasting other cable, contiguous roast the heat-shrink tube finished also Chang Yin be heated once again and soften, get loose, cause splice tray 30 to leak.
With the optical cable connecting box is example, the diameter of the cable turnover end face of a communications optical cable splice tray mostly is 15 centimetres to 20 centimetres even littler greatly, and a cable turnover end face all need provide 2 backbone optical cables and 4 bifurcation optical cable turnover usually, therefore each optical cable on the cable turnover end face is imported and exported all very close each other, so import and export the thermal shrinkage type optical cable connecting box of waterproof construction in the prior art as optical cable with heat-shrink tube, with burn roasting finish first optical cable and import and export the heat-shrink tube that waterproof uses after, when passing in and out the heat-shrink tube that other optical cable is imported and exported on end face with roasting this optical cable of baked wheaten cake once again, usually cause and contiguous roasted that the heat-shrink tube of finishing is heated once again and softening getting loose causes splice tray to leak, this defective, be that thermal shrinkage type cable connection box of the prior art perplexs and problem anxious to be solved most always, in addition, because with burning roasting mode, also relate to the problem on many job safetys, how to reduce as far as possible and reduce with burning roasting frequent degree, also be the target that the telecommunications dealer lays siege to always.
Telecommunications industry with Taiwan is an example, because the fiber broadband service has become trend, Hinet company all laid optical cable in recent years on a large scale and used a large amount of optical cable connecting boxes to connect optical cable, more announce beginning in 2009 a few days ago, continuous 5 years, to drop into 30,000,000,000 funds that amount to 1,500 hundred million New Taiwan Currency every year, carry out the capital construction of fiber optic network; And the said firm is placed in the thermal shrinkage type optical cable connecting box of the optical cable that is used in manhole and the hand hole continuing in recent years, and the ratio over half that surpasses far away is arranged, and all seriously leaks; Because the problem that the thermal shrinkage type optical cable connecting box leaks fails to solve, the said firm has to the price buying mechanical type optical cable connecting box use that exceeds 3 times than buying thermal shrinkage type optical cable connecting box a few days ago, and with the various mechanical type optical cable connecting boxes of importing and exporting waterproof construction in the blocking mode of mechanical structure as optical cable, there all have optical cable to import and export the suitable cable outer diameter scope of waterproof blocking again to be narrow and small, spare and accessory parts are various and complicated, construction procedure is loaded down with trivial details, need use multiple instrument etc. to cause construction inconvenience and cost problem of higher, the mechanical type optical cable connecting box except the operation not as the thermal shrinkage type optical cable connecting box easy, buying expenses has also increased by three times more than.Therefore, if can improve the defective and the water-proof function of thermal shrinkage type optical cable connecting box, not only can avoid the thermal shrinkage type optical cable connecting box to leak influences the problem of line quality, more can significantly reduce the cost of dealer's investment.
Though can adopt elastic rubber shrinkage pipe to substitute heat-shrink tube, import and export the thermal shrinkage type optical cable connecting box of waterproof construction as optical cable to solve heat-shrink tube, with burn roasting finish first optical cable and import and export the heat-shrink tube that waterproof uses after, when passing in and out the heat-shrink tube that other optical cable is imported and exported on end face with roasting this optical cable of baked wheaten cake once again, usually cause and contiguous roasted that the heat-shrink tube of finishing is heated once again and the softening problem that gets loose and cause splice tray to leak, and reduce as far as possible and reduce with burning roasting frequent degree; But elastic rubber shrinkage pipe only is suitable for penetrating under the situation of an optical cable in each optical cable import and export, straight line continues or difference continues introduces optical cable connecting box after blocking again backbone optical cable and bifurcation optical cable are carried out water-proofing treatment, but can't draw when connecing difference and continuing each optical cable halfway and import and export and penetrate under the situation of two optical cables, carry out effective water-proofing treatment for the groove between backbone optical cable two cables simultaneously.Shown in Fig. 3 (A), because being tools, this elastic rubber shrinkage pipe 40 enriches the hollow synthetic rubber tube 41 of elasticity and ductility, coil in this rubber tube and the hollow aperture of supportting big this rubber tube 41 and be equiped with the flexual rigid plastics bar 42 of tool in the hollow hole of this rubber tube in advance with the threaded tubular form of hollow, after the plastic strip 42 that places this rubber tube 41 is extracted, this rubber tube 41 is that elastic shrinkage reverts near the smaller aperture due before big by these plastic strip 42 supports by this big hollow aperture of plastic strip 42 supports, shown in Fig. 3 (B), wherein pass the hollow column jacket 52 of the cable import and export of this cable turnover end face 51,53 cable 54, the 55th, shrink tightly Bao Shu in this hollow column jacket 52 with this elastic rubber shrinkage pipe 56,53 the outside and a part of cable 54 that does not penetrate this hollow column jacket, 55 waterproof constructions that form.
Early stage optical cable only carries out mostly that straight line continues and difference continues, backbone optical cable all is to introduce the optical cable connecting box operation that continues after blocking again, each backbone optical cable of the optical cable of splice tray turnover end face is imported and exported and is only needed to pass in and out a backbone optical cable, uses elastic rubber shrinkage pipe instead and substitutes heat-shrink tube to carry out water-proofing treatment for the backbone optical cable of introducing optical cable connecting box after blocking again and bifurcation optical cable no problem; Owing to entered the epoch of FTTH FTTH at present, backbone optical cable during many conversations are used must pass in and out optical cable connecting box under the situation of not blocking, and will be wherein untapped optical fiber difference draw to connect and use to other user, this operating type is called to draw midway and connects difference and continue; Because cable connection box with the elastic rubber shrinkage pipe waterproof, can't connect the backbone optical cable that difference continues and carry out effective water-proofing treatment for draw midway, so draw when connecing difference and continuing midway when running into, just can only select to change into and adopt mechanical type optical cable connecting box or thermal shrinkage type optical cable connecting box, and select to use the shortcoming front of mechanical type optical cable connecting box to illustrate; So another selection shown in Fig. 2 (B), changes employing exactly into and can import and export 32 at backbone optical cable and penetrate two backbone optical cable 24A, 24B and carry out the thermal shrinkage type optical cable connecting box 30 of water-proofing treatment with heat-shrink tube 36.
And in the prior art, the setting that its trunk cable of optical cable connecting box is imported and exported, the water-proofing treatment of carrying out the trunk cable with heat-shrink tube mode or elastic rubber shrinkage pipe mode a kind of mode wherein only can be provided, and in the optical cable laying process of construction of FTTH FTTH, owing to whether need to carry out and draw midway that to connect the continue variable of operation of difference too many, be difficult to the expection statistics, cause the telecommunications dealer to purchase how much quantity and how much quantity of stock and can draw midway and connect the difference optical cable connecting box that continues for needs, and how much quantity of this buying and how much quantity of stock do not need draw midway connect difference continue function the puzzlement of problems such as optical cable connecting box endlessly; If all adopt the thermal shrinkage type optical cable connecting box, increase the problems such as complexity of loaded down with trivial detailsization of operation such as cost and statistics, distribution and optical cable construction personnel materials used though solved buying, stock's variation, but on the water-proofing treatment problem of backbone optical cable, but significantly increased and originally can avoid using fiery safety problem, and given up the Security Target of using the frequent degree of fire when telecommunications dealer lays siege to minimizing as far as possible always and reduces construction.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of cable connection box of taking different modes to carry out trunk cable water-proofing treatment, this cable connection box comprises protecting cover and at least one cable turnover end face, this cable turnover end face has at least three hollow column jackets, one of them hollow column jacket can pass in and out this cable connection box with the trunk cable that heat-shrink tube carries out waterproof for passing two preparations, two hollow column jackets in addition, each hollow column jacket can pass in and out this cable connection box with the trunk cable that elastic rubber shrinkage pipe carries out waterproof for passing a preparation.Particularly can effectively solve cable connection box of the prior art, the setting that its trunk cable is imported and exported, only can provide with heat-shrink tube or elastic rubber shrinkage pipe a kind of mode wherein and carry out the water-proofing treatment of trunk cable, and cause telecommunications dealer cost to increase and influence the new solution of the problem of construction safety.
The solution of taking different modes to carry out the cable connection box of trunk cable water-proofing treatment of the present invention is the result who concentrates on studies and explore through the present patent application people, study according to the present patent application people after the defective and reason of communication cable splice closure of thermal shrinkage type cable connection box of the prior art and tool elastic rubber shrinkage pipe waterproof device, find the import and export of the trunk cable of thermal shrinkage type cable connection box cable turnover end face of the prior art, though can pass two trunk cables simultaneously and carry out water-proofing treatment with heat-shrink tube, both can satisfy the Job Operations demand that straight line continues and difference continues, can satisfy again to draw midway and connect the job requirements that difference continues, but must use fire roasting when carrying out water-proofing treatment with heat-shrink tube, significantly increased and originally when the operation that straight line continues and difference continues, can avoid using fiery safety problem, can't satisfy the Security Target of using the frequent degree of fire when the telecommunications dealer lays siege to minimizing as far as possible all the time and reduces construction; And when adopting elastic rubber shrinkage pipe to substitute heat-shrink tube to carry out water-proofing treatment, though can satisfy the job requirements that straight line continues and difference continues, and because needn't be with fiery, can satisfy the Security Target of using the frequent degree of fire when the telecommunications dealer lays siege to minimizing as far as possible all the time and reduces construction, but but can't satisfy to draw midway and connect the job requirements that difference continues, because when adopting elastic rubber shrinkage pipe to carry out water-proofing treatment, the import and export of the trunk cable of splice tray cable turnover end face, can only pass a trunk cable that blocks, and can not pass two trunk cables that do not block simultaneously and carry out water-proofing treatment with elastic rubber shrinkage pipe; And continue if adopt the splice tray that carries out the backbone optical cable water-proofing treatment with elastic rubber shrinkage pipe to carry out that straight line continues and difference continues and adopt thermal shrinkage type cable connection box to draw midway to connect difference, with respect to only adopting a kind of splice tray, for the telecommunications dealer, must increase many relevant costs, if but consider cost and only adopt the splice tray of thermal shrinkage type to carry out that straight line continues, difference continues separately and draw midway and connect difference and continue, then must significantly sacrifice originally and can continue and difference continues and avoids safety problem with fire at straight line; For solving foregoing problems, the present patent application people has invented a kind of cable connection box of taking different modes to carry out trunk cable water-proofing treatment, this cable connection box comprises protecting cover and at least one cable turnover end face, this cable turnover end face has at least three hollow column jackets, one of them hollow column jacket can pass in and out this cable connection box with the trunk cable that heat-shrink tube carries out waterproof for passing two preparations, two hollow column jackets in addition, each hollow column jacket can pass in and out this cable connection box with the trunk cable that elastic rubber shrinkage pipe carries out waterproof for passing a preparation; Because the space in manhole and the hand hole is limited, it is then the smaller the better especially to reach wall hanging on the bar, therefore the volume of cable connection box makes every effort to compact, but except the trunk cable, the difference cable that also is provided with mostly about 4 on the cable turnover end face of cable connection box is imported and exported, and cost is cheap, the thermal shrinkage type splice tray of easy construction, in bake the heat-shrink tube of finishing first cable import and export waterproof with baked wheaten cake after, when passing in and out the heat-shrink tube that other cable is imported and exported on end face with roasting this cable of baked wheaten cake once again, usually cause and contiguous roasted that the heat-shrink tube of finishing is heated once again and the softening problem that gets loose and cause splice tray to leak, in order to reduce the influence of this problem, the trunk cable and the difference cable that are arranged on the limited cable turnover end face of area are imported and exported, all take as much as possible to be provided with apart from the mode of disperseing most farthest each other, for increasing by two backbone optical cable import and export of carrying out the backbone optical cable water-proofing treatment with the elastic caoutchouc contraction are set so be difficult for adjusting the position, because the cable connection box of taking different modes to carry out trunk cable water-proofing treatment of the present invention, have only the trunk cable to import and export and to carry out water-proofing treatment with heat-shrink tube, other difference cable is imported and exported in the time of all can adopting elastic rubber shrinkage pipe to carry out water-proofing treatment, because after the pyrocondensation water-proofing treatment of burning roasting backbone optical cable, just no longer use fire, so trunk cable and difference cable are imported and exported at the limited cable of area and are passed in and out on the end face, can taking each other, the closer and intensive mode of distance is provided with, and then can be vacant on cable turnover end face go out the position, two backbone optical cables that carry out trunk cable water-proofing treatment with elastic rubber shrinkage pipe are set import and export for increasing, and the aperture that the aperture that general trunk cable is imported and exported is is all imported and exported greater than the difference cable; Therefore, adopt the cable connection box of taking different modes to carry out trunk cable water-proofing treatment of the present invention, not only can satisfy straight line continues, difference continues and draws midway and connects the job requirements that difference continues, more can be only draw when connecing the job requirements that difference continues running into midway, just need carry out the pyrocondensation water-proofing treatment of backbone optical cable with fire, and when the operation that belongs to mostly that straight line continues and difference continues, needn't employ fire fully, so the present invention has not only saved a large amount of costs for the telecommunications dealer of this area, use fiery safety problem when more significantly having avoided construction, the telecommunications dealer who has reached this area lays siege to the Security Target of using fiery frequent degree when trying one's best minimizing and reducing construction always.
Further investigate the result of research repeatedly through the present patent application people, when finding that cable connection box is applied to communications optical cable and continues, relative position and the quality that connect and accommodate operation of optical fiber in splice tray that position that optical fiber storing tray support in the splice tray is fixing and backbone optical cable are imported and exported are closely bound up; After the cable that backbone optical cable passes cable turnover end face enters splice tray, the optical fiber that need continue connects after continuing in the optical fiber storing tray that is placed on the optical fiber storing tray support front, do not need to block and be coupled in the optical fiber storing tray and draw optical fiber most in the optical cable of the operation that continues midway, and preferably be contained in the back side of optical fiber storing tray support, need connect the configuration operation of other optical fiber in the optical fiber storing tray that is placed on the optical fiber storing tray support front and avoid being required other the optical fiber that connects in the optical fiber storing tray that is placed on the optical fiber storing tray support front and disturb in order to avoid disturb, to cause optical fiber to accommodate configuration confusion and look into the problems such as difficult of safeguarding of repairing; Therefore, the position that backbone optical cable is imported and exported, preferably be arranged at the back side of optical fiber storing tray support, after making that backbone optical cable enters splice tray, the smooth-going whole and configuration of the volume of carrying out optical fiber in space of filling part can be arranged, particularly drawing optical fiber most in the optical cable of the operation that continues does not midway need to block and is coupled in the optical fiber storing tray, and preferably be not subjected under the situation of any interference, the smooth-going back side that is housed in optical fiber storing tray support, and the trunk cable import and export of cable turnover end face of the present invention have two kinds, a kind of is the cable import and export of preparing to carry out with heat-shrink tube trunk cable waterproof homework, another kind is the cable import and export of preparing to carry out with elastic rubber shrinkage pipe trunk cable waterproof homework, and two kinds of different trunk cables import and export are arranged at different position on the cable turnover end face, after making that backbone optical cable enters splice tray, the smooth-going whole and configuration of the volume of carrying out optical fiber in space of filling part can be arranged, particularly drawing optical fiber most in the backbone optical cable of the operation that continues does not midway need to block and is coupled in the optical fiber storing tray, preferably be not subjected to any interference and disturb other be coupled to the optical fiber storing tray optical fiber, and the back side that is housed in optical fiber storing tray support that can be smooth-going.Therefore, the cable connection box of taking different modes to carry out trunk cable water-proofing treatment of the present invention, more can comprise at least one optical fiber storing tray support that is fixed in this cable turnover end face, and this cable turnover end face has at least one fixture, be used for fixing this optical fiber storing tray support, and this fixture can cooperate backbone optical cable to introduce the difference of position, fix this optical fiber storing tray support different position on cable turnover end face, optical fiber storing tray support is fixed in the position of cable turnover end face, can pass in and out the difference of cable turnover endface position and adjust along with backbone optical cable, to solve the deficiencies in the prior art.
Further investigate the result of research repeatedly through the present application people, when finding that cable connection box is applied to communications optical cable and continues, optical fiber in splice tray configuration and accommodate operation, usually transmit obstacle because the radius of curvature of fibre-optical bending is too little and optical fiber bundle tubes too bends, and too crooked optical fiber bundle tubes is after after a while, the plastics of optical fiber bundle tubes usually because formalized when carrying out Cha Xiu and upkeep operation during with the expansion of the optical fiber bundle tubes of bending, problems such as transmission obstacle even broken string take place, stop and interfere and during necessary bending, this class problem takes place especially easily and after cable that optical cable passes cable turnover end face enters splice tray, be subjected to optical fiber storing tray on the optical fiber storing tray support.So optical cable passes the cable of cable turnover end face enter splice tray after, the distribution of optical fiber and to accommodate the situation that should make every effort to smooth-going and crooked few more good more, and must bending the time, radius of curvature is can not ether little; And the optical fiber storing tray on the optical fiber storing tray support in the splice tray is the biggest obstacle thing that stops with the interference optical fiber distribution, and after optical cable entered splice tray, the stroke of optical fiber distributing was if be subjected to stopping and interfering of optical fiber storing tray, and optical fiber just must turning; So no matter be backbone optical cable or bifurcation optical cable, enter the stroke of optical fiber distributing behind the splice tray and all should avoid being subjected to the interference of distribution board as far as possible, and the optical fiber in the backbone optical cable is more, and particularly drawing optical fiber most in the backbone optical cable of the operation that continues does not midway need to block and be coupled to the optical fiber storing tray; Therefore, the cable connection box of taking different modes to carry out trunk cable water-proofing treatment of the present invention, the position that more can comprise the hollow column jacket that this cable turnover end face confession trunk cable passes, be to be arranged to pass this hollow column jacket and enter the rectilinear path of trunk cable of this cable connection box after a side of this optical fiber storing tray support is installed the optical fiber storing tray of maximum quantity, the position that can be stopped and interfere by this optical fiber storing tray not is to solve the deficiencies in the prior art.
The cable connection box of taking different modes to carry out trunk cable water-proofing treatment of the present invention, be applied to drawing of optical cable midway when connecing difference and continuing operation, be to carry out the water-proofing treatment of backbone optical cable in cable turnover end face with heat-shrink tube, and study after the thermal shrinkage type cable connection box that leaks after the use according to the present application people, find that also the reason that thermal shrinkage type cable connection box leaks has two kinds, one reason is that the waterproof construction of protecting cover and cable turnover end face junction is bad, another reason be connected coat then outside and introduce heat-shrink tube that the waterproof of the cable of this hollow column jacket uses and get loose and cause in cable turnover end face hollow column jacket with the position of following that it coats this cable then; After therefore though the waterproof construction through improving protecting cover and cable turnover end face junction can not leak it, the phenomenon that still has many thermal shrinkage type cable connection boxes to leak.
Further investigate the result of research repeatedly through the present application people, the linking of discovery thermal shrinkage type cable connection box coats then and gets loose in outside heat-shrink tube and its then position of using with the waterproof of the cable of introducing this hollow column jacket that coats this cable then of cable turnover end face hollow column jacket, the reason that causes this splice tray to leak, be that this splice tray finishes after the pyrocondensation waterproof homework, no matter be to fix this splice tray in the operation process of manhole or hand hole, or in manhole or hand hole, take out the reconfiguration that this splice tray carries out cable, difference is drawn, in the relevant operation process such as maintenance, because must move this splice tray, cause being connected in this splice tray outside and finished then this cable twisting bending of water-proofing treatment of heat-shrink tube coating, make this heat-shrink tube coat then and get loose, cause this splice tray to leak in the then position of this cable.Especially, the coating of the cable of room external application mostly is the PE material greatly, generally speaking, and the waterproof heat-shrink tube of thermal shrinkage type cable connection box, internal layer be used to coat then in the thermosol of cable in the PE of cable coating then intensity is limited, easily because the cable twisting is stressed and get loose when crooked.
In order to overcome the deficiencies in the prior art, the result who concentrates on studies through the present application people, the communication cable splice closure of tool elastic rubber shrinkage pipe waterproof device of the present invention more can install at least one cable fixing device in the splice tray outside additional, this device comprises that first fixed part can be fixed on the thermal shrinkage type splice tray, and second fixed part is connected in the cable that this first fixed part can fixedly be about to introduce this splice tray, more can support sector connect this first fixed part and second fixed part, this device is to select for use firm and be difficult for materials such as diastrophic metal or plastics to make.After cable connection box is fixed in this device with this cable fixing device with the cable of introducing, when moving this splice tray, finished then this cable twisting bending of water-proofing treatment of heat-shrink tube coating though be connected in this splice tray outside, but this cable twisting is crooked and stressed fulcrum is second fixed part of this cable fixing device, and then follow the position in the waterproof of this cable owing to this heat-shrink tube coats, be to occupy between first fixed part and second fixed part of this device, thus can be because of the twisting of this cable crooked and stressed influence and getting loose.Certainly, the cable fixing device of this splice tray outside not only can be used as the usefulness of fixing with the cable of existing heat-shrink tube water-proofing treatment, also can be used as fixing usefulness of carrying out the cable of water-proofing treatment with elastic rubber shrinkage pipe.The cable fixing device of this splice tray outside, this first fixed part can be one-body molded or be embedded on the cable turnover end face of this splice tray, also can be with being spirally connected, bamboo shoot connect, tight bundle anchor clamps, bundling ring, fixed forms such as tight band are fixed on this splice tray, this second fixed part can be to be shaped in this first fixed part or mechanically to be connected and fixed on this first fixed part, can be and should introduce cable with tightly restrainting anchor clamps, bundling ring, fixed forms such as tight band are fixed on this second fixed part, this support sector and this first fixed part and this second fixed part are one-body molded or mechanically interconnect, this support sector also can be connected and fixed on this first fixed part and be used for fixing the cable that this is about to introduction with its second end with its first end, and the cable that should introduce can be used the tight anchor clamps of restrainting, bundling ring, fixed forms such as tight band are fixed on second end of this support sector.The junction that the position that this introduction cable can be at position that this cable is not coated by heat-shrink tube and elastic rubber shrinkage pipe, this cable has been coated by heat-shrink tube and elastic rubber shrinkage pipe, this cable are coated and do not coated by heat-shrink tube and elastic rubber shrinkage pipe etc. is located, and this cable is fixed on second end of this second fixed part or this support sector.And cable fixing device of the present invention is also fixed in the inboard of the cable of this cable connection box inside turnover end face, in order to the fixing cable of this splice tray inside of having introduced.
Description of drawings
Fig. 1 is put in the pipeline generalized section of undergroundization for cable connection box cloth;
Fig. 2 (A) is the vertical view of the thermal shrinkage type cable connection box of prior art;
Fig. 2 (B) handles schematic diagram for the thermal shrinkage type cable connection box of prior art carries out waterproof construction;
Fig. 2 (C) introduces thermal shrinkage type cable connection box for the cable of prior art and carries out waterproof construction processing schematic diagram;
Fig. 3 (A) is the elastic rubber shrinkage pipe schematic diagram of prior art;
Fig. 3 (B) is the communication cable splice closure schematic diagram of the tool elastic rubber shrinkage pipe waterproof device of prior art;
Fig. 4 (A) carries out the cable connection box schematic diagram of trunk cable water-proofing treatment for the different modes taked of the embodiment of the invention 1;
Fig. 4 (B) carries out trunk cable water-proofing treatment for the different modes taked of the embodiment of the invention 1 cable connection box continues and difference when continuing at straight line, and the trunk cable carries out the water-proofing treatment schematic diagram with elastic rubber shrinkage pipe;
The cable connection box that Fig. 4 (C) carries out trunk cable water-proofing treatment for the different modes taked of the embodiment of the invention 1 draws when connecing difference and continuing halfway, and the trunk cable carries out the water-proofing treatment schematic diagram with heat-shrink tube;
Fig. 4 (D) carries out the fixed fiber storing tray support mode and the trunk cable of the cable connection box of trunk cable water-proofing treatment and imports and exports position view for the different modes taked of the embodiment of the invention 2;
Fig. 5 carries out the cable fixing device schematic diagram of the cable connection box of trunk cable water-proofing treatment for the different modes taked of the embodiment of the invention 3.
Embodiment
A kind of cable connection box of taking different modes to carry out trunk cable water-proofing treatment proposed by the invention can fully be understood by following embodiment explanation, make the personage who understands present technique can finish the present invention according to this, yet enforcement of the present invention is not can be limited it by the following example to implement kenel, the personage who understands present technique still can deduce out other embodiment according to the spirit of removing the embodiment that has disclosed, and such embodiment all ought belong to scope of the present invention.
Embodiment 1
Shown in Fig. 4 (A), be the embodiment of the invention 1 employed cable connection box schematic diagram of taking different modes to carry out trunk cable water-proofing treatment.In Fig. 4 (A), this cable 401 boxes that continue comprise protecting cover 402 and at least one cable turnover end face 403, this cable turnover end face has a plurality of hollow column jackets, wherein there is at least one hollow column jacket 404 to pass in and out this cable connection box with the trunk cable that heat-shrink tube carries out water-proofing treatment for passing two preparations, and at least two hollow column jacket 405A are arranged, 405B and each hollow column jacket can pass in and out this cable connection box with the trunk cable that elastic rubber shrinkage pipe carries out water-proofing treatment for passing a preparation, and this cable turnover end face also has four hollow column jacket 406A in addition, 406B, 406C, 406D can pass in and out this cable connection box with the difference cable that elastic rubber shrinkage pipe carries out water-proofing treatment for passing a preparation; This cable connection box 401 is that the straight line for communication cable continues, difference continues and draws midway to connect the difference usefulness that the cable of three kinds of different shapes continues such as continue; When straight line continues and difference continues, shown in Fig. 4 (B), two trunk cable 411A, 411B that block enter this cable connection box 415 for passing the preparation that is provided with on the cable turnover end face 413 with two hollow column jacket 414A, the 414B that elastic rubber shrinkage pipe carries out water-proofing treatment respectively, and adopt elastic rubber shrinkage pipe 412A, 412B to carry out water-proofing treatment; Draw when connecing difference and continuing midway, shown in Fig. 4 (C), the trunk cable 423 that does not block passes the preparation that is provided with on the cable turnover end face 424 with the form of doubling simultaneously with two backbone optical cables 423 and enters this cable connection box 426 with the hollow column jacket 425 that heat-shrink tube carries out water-proofing treatment, and adopts heat-shrink tube 427 to carry out water-proofing treatment.
The cable connection box of the mode of the embodiment of the invention 1, when the trunk cable in carrying out that straight line continues and difference when continuing operation, all can adopt with elastic rubber shrinkage pipe and carry out trunk cable water-proofing treatment, and must carry out and draw when connecing difference and continuing operation midway when running into the trunk cable, again can be under the situation that needn't change cable connection box, adopt heat-shrink tube to carry out trunk cable water-proofing treatment, so can solve cable connection box of the prior art, the setting that its trunk cable is imported and exported, the water-proofing treatment of carrying out the trunk cable with heat-shrink tube or elastic rubber shrinkage pipe a kind of mode wherein only can be provided, cause telecommunications dealer cost to increase and influence the problem of construction safety.
Embodiment 2
Shown in Fig. 4 (A), be the embodiment of the invention 1 employed cable connection box schematic diagram of taking different modes to carry out trunk cable water-proofing treatment.In Fig. 4 (A), this cable connection box comprises protecting cover and at least one cable turnover end face, this cable turnover end face has a plurality of hollow column jackets, wherein there is at least one hollow column jacket to pass in and out this cable connection box with the trunk cable that heat-shrink tube carries out water-proofing treatment for passing two preparations, and at least two hollow column jackets are arranged and each hollow column jacket can pass in and out this cable connection box with the trunk cable that elastic rubber shrinkage pipe carries out water-proofing treatment for passing a preparation, this cable turnover end face also has four hollow column jackets to pass in and out this cable connection box with the difference cable that elastic rubber shrinkage pipe carries out water-proofing treatment for passing a preparation; And this cable connection box, shown in Fig. 4 (D), more comprise at least one optical fiber storing tray support 432 that is fixed in this cable turnover end face 431, and this cable turnover end face has at least one fixture 433A, 433B, be used for fixing this optical fiber storing tray support 432, and this fixture 433A, 433B can cooperate backbone optical cable 436,437A, 437B to introduce the difference of position 434,435A, 435B, fix this optical fiber storing tray support 432 different position on cable turnover end face 431; In addition, this cable connection box more comprises the hollow column jacket 434 that this cable turnover end face 431 passes for trunk cables 436,437A, 437B, the position of 435A, 435B, be be arranged at the trunk cable 436 that passes this hollow column jacket 434,435A, 435B and enter this cable connection box, 437A, 437B rectilinear path after a side of this optical fiber storing tray support 432 is installed the optical fiber storing tray 438 of maximum quantity, can be by the position that this optical fiber storing tray 438 stopped and interfered.
Therefore, in the embodiment of the invention 2,, optical fiber storing tray support is fixed in different position on the cable turnover end face because the fixture of cable turnover end face can cooperate backbone optical cable to introduce the difference of position; Moreover cable turnover end face is provided with the position that the cable that passes for the trunk cable is imported and exported, and is the position that the rectilinear path of optical fiber distributing after the trunk cable enters this splice tray can not stopped and interfere by this optical fiber storing tray; The trunk cable enters this splice tray from different positions so the present invention has further solved, and causes optical fiber distributing can't smooth-goingly accommodate and suffer stopping of optical fiber storing tray and interfere and cause problem such as Optical Fiber Transmission obstacle.
Embodiment 3
As shown in Figure 5, carry out the cable connection box schematic diagram of trunk cable water-proofing treatment for the different modes taked of the embodiment of the invention 3.In Fig. 5 figure, this cable connection box 30 (hereinafter to be referred as cable connection box 30) is to supply the straight line of communication cable to continue, difference continues and draws midway and connects the difference usefulness that the cable of three kinds of different shapes continues such as continue, cable connection box 50 of the present invention is by comprising cable turnover end face 51 at least, a plurality of hollow column jackets 52 on the cable turnover end face 21,53, protecting cover, a plurality of elastic rubber shrinkage pipes, the optical fiber storing tray support that thermal shrinkage type cable connection box is desired to draw the cable fixing device that connects heat-shrink tube that trunk cable that difference continues used always and a plurality of cable connection box 30 outsides midway and can be fixed in this cable turnover end face is formed, and wherein the water-proofing treatment of difference cable and trunk cable is identical with embodiment 1; Different is, the cable fixing device of these cable connection box 30 outsides is fixed in difference cable and trunk cable on this device, the cable fixing device of these cable connection box 30 outsides comprises: first fixed part 41 sees through screw 431 (and another screw with intermediate plate 43, be not shown in Fig. 5) assembling, first fixed part 41 is fixed in hollow column jacket 32; Second fixed part 42 sees through the screw on the tight bundle of the locking anchor clamps 44, the fixing cable 35 of introducing this cable connection box 30.See through the setting that the second above-mentioned fixed part 42 is connected in first fixed part 41, the cable 35 that is coated by heat-shrink tube 38 and this elastic rubber shrinkage pipe promptly is carried out and is fixed on the cable connection box 30, when mobile this cable connection box 30 and this cable 35 twistings when crooked, stressed fulcrum is at this second fixed part 42, so this heat-shrink tube 38 and this elastic rubber shrinkage pipe are coated on the waterproof position of this cable 35, can not get loose, cause moisture to enter in the cable connection box 30 because of the influence that twists crooked cable 35.This cable fixing device more comprises support sector 40, in order to connect first fixed part 41 and second fixed part 42.Second fixed part 42 can be shaped in support sector 40; First fixed part 41 can be shaped in this support sector 40; Perhaps, first fixed part 41, second fixed part 42 and support sector 40 are one-body molded.In addition, support sector 40 can connect first fixed part 41, and this support sector 40 is fixed on the cable connection box 30.In like manner, enter hollow column jacket 33 and also can be fixed in the same manner with the cable 37 that heat-shrink tube 39 and this elastic rubber shrinkage pipe coat.
Explanation by the foregoing description 1,2 and 3, the cable connection box of taking different modes to carry out trunk cable water-proofing treatment of the present invention can effectively solve cable connection box of the prior art, the setting that its trunk cable is imported and exported, the water-proofing treatment of carrying out the trunk cable with heat-shrink tube or elastic rubber shrinkage pipe a kind of mode wherein only can be provided, cause telecommunications dealer cost to increase and influence the problem of construction safety.
Above execution mode only is used to illustrate the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; under the situation that does not break away from the spirit and scope of the present invention; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (21)
1. the cable connection box that can take different modes to carry out trunk cable water-proofing treatment, this cable connection box comprises: protecting cover; And at least one cable turnover end face, this cable turnover end face has a plurality of hollow column jackets, wherein there is at least one hollow column jacket to pass in and out this cable connection box with the trunk cable that heat-shrink tube carries out water-proofing treatment for passing two preparations, and at least two hollow column jackets arranged and each hollow column jacket can pass in and out this cable connection box with the trunk cable that elastic rubber shrinkage pipe carries out water-proofing treatment for passing a preparation.
2. the cable connection box of taking different modes to carry out trunk cable water-proofing treatment as claimed in claim 1, more comprise at least one optical fiber storing tray support that is fixed in this cable turnover end face, and this cable turnover end face has at least one fixture, be used for fixing this optical fiber storing tray support, and this fixture can cooperate backbone optical cable to introduce the difference of position, fixes this optical fiber storing tray support different position on cable turnover end face.
3. the cable connection box of taking different modes to carry out trunk cable water-proofing treatment as claimed in claim 1 or 2, the position that more comprises the hollow column jacket that this cable turnover end face confession trunk cable passes, be to be arranged to pass the rectilinear path that this hollow column jacket enters the trunk cable of this cable connection box, after a side of this optical fiber storing tray support is installed the optical fiber storing tray of maximum quantity, the position that can be stopped and interfere by this optical fiber storing tray not.
4. as each described cable connection box of taking different modes to carry out trunk cable water-proofing treatment of claim 1-3, the position that more comprises the hollow column jacket that this cable turnover end face confession difference cable passes, be to be arranged to pass the rectilinear path that this hollow column jacket enters the difference cable of this cable connection box, install the optical fiber storing tray of maximum quantity in a side of this optical fiber storing tray support after, the position that can be stopped and interfere by this optical fiber storing tray not.
5. as each described cable connection box of taking different modes to carry out trunk cable water-proofing treatment of claim 1-3, more include at least two elastic rubber shrinkage pipes, pass in and out the water-proofing treatment of end face in order to the cable that passes in and out this cable connection box at this cable.
6. as each described cable connection box of taking different modes to carry out trunk cable water-proofing treatment of claim 1-3, more include at least one heat-shrink tube, pass in and out the water-proofing treatment of end face in order to the cable that passes in and out this cable connection box at this cable.
7. as each described cable connection box of taking different modes to carry out trunk cable water-proofing treatment of claim 1-4, comprise that more this cable connection box outside has at least one cable fixing device, the cable line fixture comprises:
First fixed part is fixed on the cable connection box; And
Second fixed part is connected in this first fixed part, this second fixed part fixedly be about to introduce this cable connection box and prepare with heat-shrink tube and elastic rubber shrinkage pipe the two one of the cable of waterproof.
8. the cable connection box of taking different modes to carry out trunk cable water-proofing treatment as claimed in claim 7, wherein this first fixed part is to be embedded on the cable turnover end face of this cable connection box.
9. the cable connection box of taking different modes to carry out trunk cable water-proofing treatment as claimed in claim 7, wherein this first fixed part is to be shaped on this cable connection box cable turnover end face.
10. the cable connection box of taking different modes to carry out trunk cable water-proofing treatment as claimed in claim 7, wherein the fixed form of the cable of this first fixed part and this cable connection box turnover end face be selected from by be spirally connected, bamboo shoot connect, tightly restraint anchor clamps, bundling ring, tight band are formed group one of them.
11. the cable connection box of taking different modes to carry out trunk cable water-proofing treatment as claimed in claim 7, wherein the fixed form of this second fixed part and this cable be selected from the group that forms by tight bundle anchor clamps, bundling ring, tight band one of them.
12. the cable connection box of taking different modes to carry out trunk cable water-proofing treatment as claimed in claim 7 comprises that more support sector is in order to connect this first fixed part and this second fixed part.
13. the cable connection box of taking different modes to carry out trunk cable water-proofing treatment as claimed in claim 12, wherein this second fixed part is to be shaped in this support sector.
14. the cable connection box of taking different modes to carry out trunk cable water-proofing treatment as claimed in claim 12, wherein this second fixed part is mechanically to be connected and fixed on this support sector.
15. the cable connection box of taking different modes to carry out trunk cable water-proofing treatment as claimed in claim 12, wherein this first fixed part is to be shaped in this support sector.
16. the cable connection box of taking different modes to carry out trunk cable water-proofing treatment as claimed in claim 12, wherein this first fixed part is mechanically to be connected and fixed on this support sector.
17. the cable connection box of taking different modes to carry out trunk cable water-proofing treatment as claimed in claim 12, wherein this support sector is connected and fixed on this first fixed part, and this support sector is fixed on this cable connection box.
18. the cable connection box of taking different modes to carry out trunk cable water-proofing treatment as claimed in claim 12, wherein the material of this support sector is to be selected from metal, plastics and combination thereof.
19. a cable connection box comprises:
Protecting cover; And
At least one cable turnover end face, this cable in-out end mask has:
At least one hollow column jacket can be for passing the trunk cable turnover of two preparations with the first mode water-proofing treatment; And
At least two hollow column jackets, and arbitrary this hollow column jacket can be for passing the trunk cable turnover of a preparation with the second mode water-proofing treatment.
20. a cable connection box comprises cable turnover end face, this cable in-out end mask has:
First hollow column jacket can be for passing the first trunk cable turnover of a preparation with the first mode water-proofing treatment; And
Second hollow column jacket can be for passing preparation with the second mode water-proofing treatment and the turnover of the second trunk cable through bending.
21. cable connection box as claimed in claim 20 is characterized in that, this first mode is identical with this second mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103021263A CN101882777A (en) | 2009-05-06 | 2009-05-06 | Cable joint box capable of adopting different modes to conduct waterproofing treatment on main cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103021263A CN101882777A (en) | 2009-05-06 | 2009-05-06 | Cable joint box capable of adopting different modes to conduct waterproofing treatment on main cables |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410708989.1A Division CN104577938A (en) | 2009-05-06 | 2009-05-06 | Cable junction box capable of waterproofing main cables in different manners |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101882777A true CN101882777A (en) | 2010-11-10 |
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ID=43054709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103021263A Pending CN101882777A (en) | 2009-05-06 | 2009-05-06 | Cable joint box capable of adopting different modes to conduct waterproofing treatment on main cables |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101882777A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842452A (en) * | 2017-03-15 | 2017-06-13 | 沈阳仕得蓝科技有限公司 | OPGW cable splice closures |
| WO2018195890A1 (en) * | 2017-04-28 | 2018-11-01 | 中天海洋系统有限公司 | Junction box and offshore power generation system using junction box |
-
2009
- 2009-05-06 CN CN2009103021263A patent/CN101882777A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842452A (en) * | 2017-03-15 | 2017-06-13 | 沈阳仕得蓝科技有限公司 | OPGW cable splice closures |
| WO2018195890A1 (en) * | 2017-04-28 | 2018-11-01 | 中天海洋系统有限公司 | Junction box and offshore power generation system using junction box |
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