CN104577938A - Cable junction box capable of waterproofing main cables in different manners - Google Patents
Cable junction box capable of waterproofing main cables in different manners Download PDFInfo
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- CN104577938A CN104577938A CN201410708989.1A CN201410708989A CN104577938A CN 104577938 A CN104577938 A CN 104577938A CN 201410708989 A CN201410708989 A CN 201410708989A CN 104577938 A CN104577938 A CN 104577938A
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- cable
- connection box
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- proofing treatment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/088—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
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- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses a cable junction box capable of waterproofing main cables in different manners. The cable junction box comprises a protective cover and at least one cable inlet and outlet end face, wherein at least three hollow pipe columns are arranged on the cable inlet and outlet end face; one hollow pipe column can be used for two main cables to be waterproofed with heat-shrinkable tubes to extend into and out of the cable junction box, and each of the other two hollow pipe columns can be used for a main cable to be waterproofed with an elastic rubber retractable tube to extend into and out of the cable junction box. According to the cable junction box, many problems during the waterproofing of main cable inlets and outlets of a communication cable junction box in the prior art are solved.
Description
The application is the applying date is on May 6th, 2009, and application number is 200910302126.3, and denomination of invention is the divisional application of the patent application of " a kind of cable connection box taking different modes to carry out trunk cable water-proofing treatment ".
Technical field
The invention relates to a kind of cable connection box 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 for the trunk cable preparing to carry out with heat-shrink tube waterproof through two, two hollow column jackets in addition, each hollow column jacket can pass in and out this cable connection box for the trunk cable preparing to carry out with elastic rubber shrinkage pipe waterproof through.Espespecially one both can when straight line continues or difference continues, take to use instrument, burning things which may cause a fire disaster need not be used, the mode of easy construction safety, with elastic rubber shrinkage pipe, water-proofing treatment is carried out for the trunk cable passing in and out cable connection box, again can run into midway draw connect situation that difference continues time, thermal shrinkage type cable connection box need not be used instead, heat-shrink tube just can be adopted to carry out the cable connection box of water-proofing treatment for the trunk cable passing in and out cable connection box, cable connection box of the prior art can be solved, the setting that its trunk cable is imported and exported, the water-proofing treatment of carrying out trunk cable with heat-shrink tube or elastic rubber shrinkage pipe a kind of mode wherein only can be provided, cause telecommunication operator cost to increase and affect the problem of construction safety.
Background technology
Due to the cable laying of world community, all pursue underground as far as possible, and cable underground lays mode based on pipeline, the cable connection box that the cable of underground piping of continuing is used, all in the manhole and hand hole being seated in cable underground pipeline, and the ponding that many manholes and hand hole are all throughout the year a large amount of, so thus the splice tray be placed in one also is immersed in water throughout the year.As shown in Figure 1, for cable connection box is laid on the pipeline generalized section of underground.In FIG, manhole 111,121 is provided with below manhole cover 11,12, cable connection box 13,14 is placed in manhole 111,121, be connected with cable 16 between cable connection box 13 and 14, cable connection box 13,14 is connected with other cable connection box (not shown) with cable 15,17 again respectively.In practice, cable 15,16,17 rolling in manhole 111,121 is curved.No matter be the cable connection box that cable or optical cable use, if its waterproof effect is not good, ponding outside splice tray bleeds in splice tray, will affect the transmission quality of cable and accelerate the deterioration of cable, causing the useful life of line transmission generation obstacle and reduction cable.
In prior art, in optical cable laying and the technical field that continues of all kinds of wire transmission industries such as telecommunications, cable TV, supervisory control system, thermal shrinkage type cable connection box is widely used many years already.Although thermal shrinkage type cable connection box have manufacturing cost lower, be suitable for cable external diametrical extent comparatively large, apply the easier plurality of advantages such as fast and widely used by industry; But thermal shrinkage type cable connection box is easier to Lou water problem, but by the shortcoming denounced, and thermal shrinkage type cable connection box is after the heat-shrink tube having baked first cable import and export waterproof with baked wheaten cake, when using the heat-shrink tube burning other cable import and export on roasting this optical cable turnover end face once again, the heat-shrink tube usually causing vicinity to roast is heated once again and softening getting loose causes splice tray to leak.As shown in Fig. 2 (A), it is 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, just get through in feasible modes such as such as cutting or knock open when needing to penetrate cable, trunk cable 24A, 24B enter splice tray 20 through hollow column jacket 22, presss from both sides 29 intervals between trunk cable 24A, 24B with the difference of heat-shrink tube.Difference cable 25A, 25B, 25C, 25D, 25E are each passed through hollow column jacket 23A ~ 23E and enter splice tray 20.As shown in Fig. 2 (B) and Fig. 2 (C), the thermal shrinkage type cable connection box for prior art carries out waterproof construction process schematic diagram.In Fig. 2 (B) and Fig. 2 (C), thermal shrinkage type cable connection box 30 (abbreviation splice tray) is at least made up of protecting cover 22, cable turnover end face 31 and hollow column jacket 32,33A, 33B.Trunk cable 24A, 24B are first penetrated cover by user has the hollow column jacket 32 of heat-shrink tube 36 to enter in splice tray via opening 38A, between trunk cable 24A, 24B and with the difference of heat-shrink tube folder interval, again to burn roasting heat-shrink tube 36 and difference folder, complete trunk cable 24A, 24B in the water-proofing treatment of splice tray cable turnover end face.Difference cable 35B then penetrates cover has the hollow column jacket 33B of heat-shrink tube 37 to enter in splice tray via opening 38B, then to burn roasting heat-shrink tube 33B, to complete 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 distribution board 39.But during to burn roasting heat-shrink tube 37, heat-shrink tube 36 Chang Yin that the barbecue being adjacent to heat-shrink tube 37 completes is heated once again and softens, gets loose, and causes splice tray 30 to leak.In like manner, with burn other cable roasting import and export the heat-shrink tube of 33A time, the contiguous heat-shrink tube roasted also Chang Yin is heated once again and softens, gets loose, and causes splice tray 30 to leak.
For optical cable connecting box, the diameter of the cable turnover end face of a communications optical cable splice tray is mostly 15 centimetres even less to 20 centimetres, 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 cable turnover end face is imported and exported very close each other, so import and export the thermal shrinkage type optical cable connecting box of waterproof construction in prior art as optical cable with heat-shrink tube, after the heat-shrink tube having baked first optical cable import and export waterproof with baked wheaten cake, when the heat-shrink tube imported and exported with other optical cable on baked wheaten cake roasting this optical cable turnover end face once again, the heat-shrink tube usually causing vicinity to roast is heated once again and softening getting loose causes splice tray to leak, this defect, that thermal shrinkage type cable connection box of the prior art perplexs and problem anxious to be resolved most always, in addition, due to the mode of baking with baked wheaten cake, also relate to the problem in many job safetys, how to reduce as far as possible and to reduce with burning roasting frequent degree, also be the target that telecommunication operator lays siege to always.
For the telecommunications industry in Taiwan, because fiber broadband service becomes trend, Hinet company laid optical cable in recent years all on a large scale and used a large amount of optical cable connecting boxes to connect optical cable, more announce to start for 2009 a few days ago, continuous 5 years, input 30,000,000,000 is amounted to 1, the fund of 50,000,000,000 New Taiwan Currencies every year, carry out the capital construction of fiber optic network, and the said firm is placed in recent years in manhole and hand hole and is used for the thermal shrinkage type optical cable connecting box of splicing cables, have and far exceed ratio over half, all seriously leak, fail to solve because thermal shrinkage type optical cable connecting box leaks water problem, the said firm has to use with the price buying mechanical type optical cable connecting box exceeding 3 times than buying thermal shrinkage type optical cable connecting box a few days ago, and with the various mechanical type optical cable connecting box importing and exporting waterproof construction in the blocking mode of mechanical structure as optical cable, there is again optical cable to import and export waterproof blocking and be suitable for cable outer diameter narrow, spare and accessory parts are various and complicated, construction procedure is loaded down with trivial details, multiple types of tools etc. need be used to cause the problem that construction is inconvenient and cost is higher, mechanical type optical cable connecting box is except operation is easy not as thermal shrinkage type optical cable connecting box, buying expenses also adds three times more than.Therefore, if can improve defect and the water-proof function of thermal shrinkage type optical cable connecting box, thermal shrinkage type optical cable connecting box not only can be avoided to leak affects the problem of line quality, more significantly can reduce the cost of dealer's investment.
Although elastic rubber shrinkage pipe can be adopted to substitute heat-shrink tube, to solve the thermal shrinkage type optical cable connecting box of heat-shrink tube as optical cable import and export waterproof construction, after the heat-shrink tube having baked first optical cable import and export waterproof with baked wheaten cake, when the heat-shrink tube imported and exported with other optical cable on baked wheaten cake roasting this optical cable turnover end face once again, usually cause that the contiguous heat-shrink tube roasted is heated once again and softening getting loose causes splice tray to leak water problem, and reduce as far as possible and reduce with burning roasting frequent degree; But elastic rubber shrinkage pipe is only suitable for when the import and export of each optical cable penetrate an optical cable, straight line is continued or difference continues block after introduce the backbone optical cable of optical cable connecting box again and bifurcation optical cable carries out water-proofing treatment, but cannot when midway draw to connect when difference continues each optical cable import and export penetrate two optical cables, effective water-proofing treatment is carried out for the groove between backbone optical cable two cable simultaneously.As shown in Fig. 3 (A), the hollow synthetic rubber tube 41 of elasticity and ductility is enriched because this elastic rubber shrinkage pipe 40 is tools, and be equiped with the flexual rigid plastics bar 42 of tool in the hollow hole of this rubber tube in advance and coil in this rubber tube with the threaded tubular form of hollow and the hollow aperture of support this rubber tube 41 large, after the plastic strip 42 being placed in this rubber tube 41 is extracted, this rubber tube 41 by this plastic strip 42 support large hollow aperture and elastic shrinkage revert to close to supportted by this plastic strip 42 large before smaller aperture due, as shown in Fig. 3 (B), wherein through the hollow column jacket 52 that the cable of this cable turnover end face 51 is imported and exported, the cable 54 of 53, 55 be with this elastic rubber shrinkage pipe 56 shrink tightly Bao Shu in this hollow column jacket 52, the outside of 53 and some do not penetrate the cable 54 of this hollow column jacket, 55 waterproof constructions formed.
Early stage optical cable mostly only carries out straight line and to continue and difference continues, backbone optical cable be all block after introduce optical cable connecting box again and carry out connecting operation, each backbone optical cable of the optical cable turnover end face of splice tray is imported and exported and is only needed turnover 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 and bifurcation optical cable of introducing optical cable connecting box after blocking again no problem; Owing to having entered the epoch of FTTH FTTH at present, backbone optical cable during many calls use must pass in and out optical cable connecting box when not blocking, and will wherein draw to connect and use to other user by untapped optical fiber branching, this operating type is called that midway is drawn and connects difference and continue; Due to the cable connection box of elastic rubber shrinkage pipe waterproof, cannot draw for midway and connect the backbone optical cable that difference continues and carry out effective water-proofing treatment, so when run into midway draw connect difference continue time, just can only select to change into and adopt mechanical type optical cable connecting box or thermal shrinkage type optical cable connecting box, and illustrate before the shortcoming of choice for use mechanical type optical cable connecting box; So another is selected, as shown in Fig. 2 (B), change into exactly adopting and can import and export 32 at backbone optical cable and penetrate two backbone optical cables 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 prior art, the setting that its trunk cable of optical cable connecting box is imported and exported, the water-proofing treatment of carrying out 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, too many owing to drawing the need of execution midway the variable connecing difference connecting operation, be difficult to expection statistics, cause telecommunication operator to purchase how much quantity and stock's how much quantity for needs can carry out midway and draw and connect difference splicing cables splice tray, and again this buying how much quantity and stock's how much quantity without the need for midway draw connect difference continue function the problem puzzlement such as optical cable connecting box endlessly, if all adopt thermal shrinkage type optical cable connecting box, although solve buying, stock be diversified and increase the problems such as the complexity of cost and operation loaded down with trivial detailsization such as statistics, distribution and optical cable construction librarian use material, but in the water-proofing treatment problem of backbone optical cable, but significantly add the safety problem originally can avoiding using fire, and give up the Security Target that telecommunication operator lays siege to the frequent degree of fire when reducing as far as possible and reduce construction always.
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 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 for the trunk cable preparing to carry out with heat-shrink tube waterproof through two, two hollow column jackets in addition, each hollow column jacket can pass in and out this cable connection box for the trunk cable preparing to carry out with elastic rubber shrinkage pipe waterproof through.Particularly 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 trunk cable with heat-shrink tube or elastic rubber shrinkage pipe a kind of mode wherein only can be provided, and cause telecommunication operator cost to increase and affect the new solution of problem of construction safety.
The solution taking different modes to carry out the cable connection box of trunk cable water-proofing treatment of the present invention be through present invention applicant concentrate on studies explore result, after the defect studying the communication cable splice closure of thermal shrinkage type cable connection box of the prior art and tool elastic rubber shrinkage pipe waterproof device according to present invention applicant and reason, find the import and export of the trunk cable of thermal shrinkage type cable connection box cable of the prior art turnover end face, although can two trunk cables be passed and carry out water-proofing treatment with heat-shrink tube simultaneously, both the Job Operations demand that straight line continues and difference continues can have been met, midway can be met again and draw the job requirements connecing difference and continue, but fire must be used when carrying out water-proofing treatment with heat-shrink tube roasting, significantly add the safety problem originally can avoiding using fire when the operation that straight line continues and difference continues, the Security Target that telecommunication operator lays siege to the frequent degree of fire when reducing as far as possible and reduce construction all the time cannot be met, and adopt elastic rubber shrinkage pipe to substitute heat-shrink tube when carrying out water-proofing treatment, although the job requirements that straight line continues and difference continues can be met, and because need not with fiery, the Security Target that telecommunication operator lays siege to the frequent degree of fire when reducing as far as possible and reduce construction all the time can be met, but but cannot meet midway and draw the job requirements connecing difference and continue, 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, a trunk cable blocked can only be passed, and can not two trunk cables do not blocked be passed simultaneously and carry out water-proofing treatment with elastic rubber shrinkage pipe, and carry out straight line according to the splice tray carrying out backbone optical cable water-proofing treatment with elastic rubber shrinkage pipe and to continue and difference continues and adopts thermal shrinkage type cable connection box to carry out midway and draws and connect difference and continue, relative to only adopting a kind of splice tray, many relevant costs must be increased for telecommunication operator, if but consider cost and only adopt separately the splice tray of thermal shrinkage type to carry out straight line continues, difference continues and midway is drawn and connect difference and continue, then must significantly sacrifice originally can to continue and difference continues the safety problem avoided with fire at straight line, for solving foregoing problems, present invention applicant has invented a kind of cable connection box 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 for the trunk cable preparing to carry out with heat-shrink tube waterproof through two, two hollow column jackets in addition, each hollow column jacket can pass in and out this cable connection box for the trunk cable preparing to carry out with elastic rubber shrinkage pipe waterproof through, due to the limited space in manhole and hand hole, on bar and wall hanging then the smaller the better especially, therefore the volume of cable connection box makes every effort to compact, but except trunk cable, the difference cable cable turnover end face of cable connection box being also provided with mostly about 4 is imported and exported, and it is with low cost, the thermal shrinkage type splice tray of easy construction, after the heat-shrink tube having baked first cable import and export waterproof with baked wheaten cake, when the heat-shrink tube imported and exported with other cable on baked wheaten cake roasting this cable turnover end face once again, the heat-shrink tube usually causing vicinity to roast is heated once again and softening getting loose causes splice tray to leak water problem, in order to reduce the impact of this problem, be arranged on the trunk cable on the cable turnover end face of limited area and the import and export of difference cable, the mode that distance is disperseed farthest most is each other taked to arrange all as much as possible, so not easily adjust position to arrange for increasing by two are carried out backbone optical cable water-proofing treatment backbone optical cable import and export with elastic caoutchouc contraction, due to the cable connection box taking different modes to carry out trunk cable water-proofing treatment of the present invention, only have trunk cable to import and export and need carry out water-proofing treatment with heat-shrink tube, when other difference cable is imported and exported and elastic rubber shrinkage pipe all can be adopted to carry out water-proofing treatment, because after the pyrocondensation water-proofing treatment with the roasting backbone optical cable of baked wheaten cake, just no longer use fire, so trunk cable and difference cable are imported and exported on the cable turnover end face of limited area, can take to arrange apart from closer and intensive mode each other, and then can vacant out position on cable turnover end face, for increasing, two are carried out trunk cable water-proofing treatment backbone optical cable import and export with elastic rubber shrinkage pipe are set, and the aperture that general trunk cable is imported and exported all is greater than the aperture that difference cable is imported and exported, therefore, adopt the cable connection box taking different modes to carry out trunk cable water-proofing treatment of the present invention, not only can meet straight line to continue, difference continues and the job requirements connecing difference and continue is drawn in midway, more can only run into midway draw connect job requirements that difference continues time, the pyrocondensation water-proofing treatment of backbone optical cable just need be carried out with fire, and mostly belong to straight line continue and difference connecting operation time, fire need not be employed completely, so the telecommunication operator that the present invention is not only this area saves a large amount of costs, the safety problem of fire is used when more significantly avoiding construction, the telecommunication operator having reached this area lays siege to the Security Target of the frequent degree of fire when reducing as far as possible and reduce construction always.
The result of research is repeatedly furtherd investigate through present invention applicant, find that cable connection box is applied to communications optical cable when continuing, the position that optical fiber distribution plate support in splice tray is fixed and the relative position that backbone optical cable is imported and exported, and the quality that connect and accommodate operation of optical fiber in splice tray is closely bound up, backbone optical cable through cable turnover end face cable enter splice tray after, the optical fiber continued is needed to connect in the optical fiber distribution plate be placed on optical fiber distribution plate support front after continuing, and midway to be drawn in the optical cable connecing connecting operation most optical fiber and is not needed to block and be coupled in optical fiber distribution plate, and be preferably contained in the back side of optical fiber distribution plate support, in order to avoid interference needs to connect the configuration operation of other optical fiber in the optical fiber distribution plate be placed on optical fiber distribution plate support front and other the optical fiber in avoiding being required the optical fiber distribution plate that connects and be placed on optical fiber distribution plate support front disturbed, cause optical fiber to accommodate configuration confusion and looking into and repair the maintenance problem such as not easily, therefore, the position that backbone optical cable is imported and exported, preferably be arranged at the back side of optical fiber distribution plate support, after making backbone optical cable enter splice tray, whole and the configuration of the volume of carrying out optical fiber that the space of filling part can be had smooth-going, particularly most optical fiber to be drawn in the optical cable connecing connecting operation in midway does not need to block and is coupled in optical fiber distribution plate, and when preferably not by any interference, the smooth-going back side being housed in optical fiber distribution plate 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 preparing to carry out with heat-shrink tube trunk cable waterproof homework, another kind is the cable import and export preparing to carry out with elastic rubber shrinkage pipe trunk cable waterproof homework, and two kinds of different trunk cables are imported and exported and are arranged at positions different on cable turnover end face, after entering splice tray to make backbone optical cable, whole and the configuration of the volume of carrying out optical fiber that the space of filling part can be had smooth-going, particularly most optical fiber to be drawn in the backbone optical cable connecing connecting operation in midway does not need to block and is coupled in optical fiber distribution plate, preferably by any interference and disturb other be coupled to optical fiber distribution plate optical fiber, and the back side being housed in optical fiber distribution plate support that can be smooth-going.Therefore, the cable connection box taking different modes to carry out trunk cable water-proofing treatment of the present invention, more can comprise at least one optical fiber distribution plate support being fixed on this cable turnover end face, and this cable turnover end face has at least one fixture, for fixing this optical fiber distribution plate support, and this fixture can coordinate backbone optical cable to introduce the difference of position, fix the position that this optical fiber distribution plate support is different on cable turnover end face, optical fiber distribution plate support is fixed on the position of cable turnover end face, can the difference of cable turnover endface position be passed in and out along with backbone optical cable and adjust, to solve the deficiencies in the prior art.
The result of research is repeatedly furtherd investigate through present inventor, find that cable connection box is applied to communications optical cable when continuing, the configuration of optical fiber in splice tray and collecting operation, usually because the radius of curvature of fibre-optical bending is too little and optical fiber bundle tubes too bends and obstacle occurs to transmit, and too bending optical fiber bundle tubes is through after a period of time, the plastics of optical fiber bundle tubes usually because formalized and when carrying out Cha Xiu and upkeep operation by the expansion of bending optical fiber bundle tubes time, there is the problems such as transmission obstacle even breaks, and when optical cable through cable turnover end face cable enter splice tray after the optical fiber distribution plate be subject on optical fiber distribution plate support stop and interfere and must bend time, especially easily there is this kind of problem.So after optical cable enters splice tray through the cable of cable turnover end face, the situation that the distribution of optical fiber and collecting should be made every effort to smooth-going and bending is more few better, and when must bend, radius of curvature can not ether little; And the optical fiber distribution plate in splice tray on optical fiber distribution plate support, be the biggest obstacle thing of stop and interference optical fiber distribution, after optical cable enters splice tray, if the stroke of optical fiber distributing is subject to stop and the interference of optical fiber distribution plate, optical fiber just must be turned; So no matter be backbone optical cable or bifurcation optical cable, after entering splice tray, the stroke of optical fiber distributing all should avoid the interference being subject to distribution board as far as possible, and optical fiber in backbone optical cable is more, particularly optical fiber most in the backbone optical cable connecing connecting operation is drawn in midway does not need to block and is coupled to optical fiber distribution plate; Therefore, the cable connection box taking different modes to carry out trunk cable water-proofing treatment of the present invention, more can comprise the position of the hollow column jacket that this cable turnover end face passes for trunk cable, be arranged to enter the rectilinear path of the trunk cable of this cable connection box after the optical fiber distribution plate of maximum quantity is installed in the side of this optical fiber distribution plate support through this hollow column jacket, can not the position that stops by this optical fiber distribution plate and interfere, to solve the deficiencies in the prior art.
The cable connection box taking different modes to carry out trunk cable water-proofing treatment of the present invention, the midway being applied to optical cable is drawn when connecing difference connecting operation, carry out backbone optical cable in the water-proofing treatment of cable turnover end face with heat-shrink tube, and after the thermal shrinkage type cable connection box leaked after studying use according to present inventor, also find that the reason that thermal shrinkage type cable connection box leaks has two kinds, it is bad that one reason is that protecting cover and cable pass in and out the waterproof construction of end face junction, another reason be the heat-shrink tube of the waterproof of the cable being connected coated then outside in cable turnover end face hollow column jacket and introducing this hollow column jacket and its then position of coated this cable then get loose and caused, though after the waterproof construction therefore passing in and out end face junction through improving protecting cover and cable makes it leak, still have the phenomenon that many thermal shrinkage type cable connection boxes leak.
The result of research is repeatedly furtherd investigate through present inventor, find that the linking of thermal shrinkage type cable connection box is coated then outside in cable turnover end face hollow column jacket and introduce the heat-shrink tube of waterproof of cable of this hollow column jacket and its then position of coated this cable then get loose, cause the reason that this splice tray leaks, after being that this splice tray completes pyrocondensation waterproof homework, no matter 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 this splice tray must be moved, cause being connected to outside this cable twisting having completed the coated then water-proofing treatment of heat-shrink tube of this splice tray to bend, make that this heat-shrink tube is coated then to get loose in the then position of this cable, this splice tray is caused to leak.Especially, the coating of the cable of room external application is mostly PE material, generally speaking, and the waterproof heat-shrink tube of thermal shrinkage type cable connection box, it is limited in the Bonding strength of the PE coating of cable that internal layer is used for the coated thermosol then in cable, easily gets loose because cable twists stressed when bending.
In order to overcome the deficiencies in the prior art, through the result that present inventor concentrates on studies, 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 additional in splice tray outside, this device comprises the first fixed part and can be fixed on thermal shrinkage type splice tray, and second fixed part be connected to this first fixed part and can fix and be about to introduce the cable of this splice tray, more support sector can connect this first fixed part and the second fixed part, this device be select firm and not easily the material such as diastrophic metal or plastics make.After the cable of introduction is fixed on this device with this cable fixing device by cable connection box, during this splice tray mobile, although be connected to outside this cable twisting having completed the coated then water-proofing treatment of heat-shrink tube of this splice tray to bend, but the twisting of this cable is bending and stressed fulcrum is the second fixed part of this cable fixing device, and due to this heat-shrink tube coated then in the waterproof then position of this cable, be occupy this device between the first fixed part and the second fixed part, so can not the bending and stressed impact and getting loose because of the twisting of this cable.Certainly, the cable fixing device of this splice tray outside not only can as fixing with the use of the cable of existing heat-shrink tube water-proofing treatment, also can as fixing use 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 with being spirally connected, bamboo shoot connect, tight bundle fixture, bundling ring, the fixed forms such as tight band are fixed on this splice tray, this second fixed part can be shaped in this first fixed part or be mechanically connected and fixed on this first fixed part, and this introduction cable can with tightly restrainting fixture, bundling ring, the 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 are mechanically interconnected, the cable that this support sector also can be connected and fixed on this first fixed part with its first end and be about to introduce for fixing this with its second end, and the cable of this introduction can with tightly restrainting fixture, bundling ring, the fixed forms such as tight band are fixed on the second end of this support sector.This introduction cable can at this cable not by heat-shrink tube and the coated position of elastic rubber shrinkage pipe, this cable by heat-shrink tube and the coated position of elastic rubber shrinkage pipe, this cable is by heat-shrink tube and elastic rubber shrinkage pipe is coated and the place such as the junction that is not wrapped by, this cable is fixed on the second end of this second fixed part or this support sector.And the inner side of the cable turnover end face of this cable connection box inside, also fix cable fixing device of the present invention, in order to the fixing cable having introduced this splice tray inside.
Accompanying drawing explanation
Fig. 1 is the pipeline generalized section that cable connection box is laid on underground;
The vertical view of the thermal shrinkage type cable connection box that Fig. 2 (A) is prior art;
The thermal shrinkage type cable connection box that Fig. 2 (B) is prior art carries out waterproof construction process schematic diagram;
The cable that Fig. 2 (C) is prior art is introduced thermal shrinkage type cable connection box and is carried out waterproof construction process schematic diagram;
The elastic rubber shrinkage pipe schematic diagram that Fig. 3 (A) is prior art;
The communication cable splice closure schematic diagram of the tool elastic rubber shrinkage pipe waterproof device that Fig. 3 (B) is prior art;
The different modes taked that Fig. 4 (A) is the embodiment of the present invention 1 carries out the cable connection box schematic diagram of trunk cable water-proofing treatment;
The different modes taked that Fig. 4 (B) is the embodiment of the present invention 1 carries out the cable connection box of trunk cable water-proofing treatment when straight line continues and difference continues, and trunk cable carries out water-proofing treatment schematic diagram with elastic rubber shrinkage pipe;
The cable connection box that the different modes taked that Fig. 4 (C) is the embodiment of the present invention 1 carries out trunk cable water-proofing treatment draws in midway and connects difference when continuing, and trunk cable carries out water-proofing treatment schematic diagram with heat-shrink tube;
The different modes taked that Fig. 4 (D) is the embodiment of the present invention 2 carries out fixed fiber storing tray support mode and the trunk cable import and export position view of the cable connection box of trunk cable water-proofing treatment;
Fig. 5 is the cable fixing device schematic diagram that the different modes taked of the embodiment of the present invention 3 carries out the cable connection box of trunk cable water-proofing treatment.
[primary clustering symbol description]
Embodiment
A kind of cable connection box taking different modes to carry out trunk cable water-proofing treatment proposed by the invention can be illustrated by following embodiment and be fully understood, make the personage understanding this technology can complete the present invention according to this, but enforcement of the present invention not can be limited its enforcement kenel by the following example, the personage understanding this technology still can deduce out other embodiment according to the spirit except the embodiment disclosed, and such embodiment is all when belonging to scope of the present invention.
Embodiment 1
As shown in Fig. 4 (A), the different modes taked used for the embodiment of the present invention 1 carries out the cable connection box schematic diagram of trunk cable water-proofing treatment.In Fig. 4 (A), this cable continue 401 boxes comprise protecting cover 402 and at least one cable turnover end face 403, this cable turnover end face has a plurality of hollow column jacket, wherein there is at least one hollow column jacket 404 can pass in and out this cable connection box for the trunk cable preparing to carry out with heat-shrink tube water-proofing treatment through two, and have at least two hollow column jacket 405A, 405B and each hollow column jacket can pass in and out this cable connection box for the trunk cable preparing to carry out with elastic rubber shrinkage pipe water-proofing treatment through, in addition this cable turnover end face also has four hollow column jacket 406A, 406B, 406C, 406D can pass in and out this cable connection box for the difference cable preparing to carry out with elastic rubber shrinkage pipe water-proofing treatment through, this cable connection box 401 be continue for the straight line of communication cable, difference continues and midway is drawn and connect the difference cable of three kinds of different shapes such as to continue and continue, when straight line continues and difference continues, as shown in Fig. 4 (B), two trunk cables 411A, 411B blocking enter this cable connection box 415 for two hollow column jackets 414A, 414B carrying out water-proofing treatment with elastic rubber shrinkage pipe through the preparation that cable turnover end face 413 is arranged respectively, and adopt elastic rubber shrinkage pipe 412A, 412B to carry out water-proofing treatment, midway is drawn and is connect difference when continuing, as shown in Fig. 4 (C), the hollow column jacket 425 that two backbone optical cables 423 carry out water-proofing treatment through the preparation that cable turnover end face 424 is arranged with heat-shrink tube is simultaneously entered this cable connection box 426 with the form of doubling by the trunk cable 423 do not blocked, and adopts heat-shrink tube 427 to carry out water-proofing treatment.
The cable connection box of the mode of the embodiment of the present invention 1, when trunk cable in perform straight line continue and difference connecting operation time, all can adopt and carry out trunk cable water-proofing treatment with elastic rubber shrinkage pipe, and when run into trunk cable must perform midway draw connect difference connecting operation time, again can when cable connection box need not be changed, heat-shrink tube is adopted to carry out trunk cable water-proofing treatment, so cable connection box of the prior art can be solved, the setting that its trunk cable is imported and exported, the water-proofing treatment of carrying out trunk cable with heat-shrink tube or elastic rubber shrinkage pipe a kind of mode wherein only can be provided, cause telecommunication operator cost to increase and affect the problem of construction safety.
Embodiment 2
As shown in Fig. 4 (A), the different modes taked used for the embodiment of the present invention 1 carries out the cable connection box schematic diagram of 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 jacket, wherein there is at least one hollow column jacket can pass in and out this cable connection box for the trunk cable preparing to carry out with heat-shrink tube water-proofing treatment through two, and have at least two hollow column jackets and each hollow column jacket can for preparing pass in and out this cable connection box with the trunk cable that elastic rubber shrinkage pipe carries out water-proofing treatment through one, this cable turnover end face also has four hollow column jackets can pass in and out this cable connection box for the difference cable preparing to carry out with elastic rubber shrinkage pipe water-proofing treatment through, and this cable connection box, as shown in Fig. 4 (D), more comprise at least one optical fiber distribution plate support 432 being fixed on this cable turnover end face 431, and this cable turnover end face has at least one fixture 433A, 433B, for fixing this optical fiber distribution plate support 432, and the difference that this fixture 433A, 433B can coordinate backbone optical cable 436,437A, 437B introduce position 434,435A, 435B, fix the position that this optical fiber distribution plate support 432 is different on cable turnover end face 431, in addition, this cable connection box more comprises the position of this cable turnover end face 431 for trunk cable 436, hollow column jacket 434 that 437A, 437B pass, 435A, 435B, be arranged to enter the trunk cable 436 of this cable connection box, the rectilinear path of 437A, 437B after the optical fiber distribution plate 438 of maximum quantity is installed in the side of this optical fiber distribution plate support 432 through this hollow column jacket 434,435A, 435B, can not the position that stops by this optical fiber distribution plate 438 and interfere.
Therefore, in the embodiment of the present invention 2, due to the fixture of cable turnover end face, backbone optical cable can be coordinated to introduce the difference of position, optical fiber distribution plate support is fixed on positions different on cable turnover end face; Moreover cable turnover end face arranges the position that the cable that passes for trunk cable is imported and exported, be optical fiber distributing after trunk cable enters this splice tray rectilinear path can not the position that stops by this optical fiber distribution plate and interfere; So the present invention further solves because trunk cable enters this splice tray from different positions, and cause optical fiber distributing cannot smooth-going collecting and suffer the stop of optical fiber distribution plate and interference and cause the problems such as Optical Fiber Transmission obstacle.
Embodiment 3
As shown in Figure 5, for the different modes taked of the embodiment of the present invention 3 carries out the cable connection box schematic diagram of trunk cable water-proofing treatment.In Fig. 5 figure, this cable connection box 30 (hereinafter referred to as cable connection box 30) supplies the straight line of communication cable to continue, difference continues and the use connecing cable that difference three kinds of different shapes such as to continue and continue is drawn in midway, cable connection box 50 of the present invention passes in and out end face 51 by least comprising cable, a plurality of hollow column jackets 52 on cable turnover end face 21, 53, protecting cover, a plurality of elastic rubber shrinkage pipe, thermal shrinkage type cable connection box for carry out midway draw connect trunk cable that difference continues the cable fixing device of the heat-shrink tube commonly use and a plurality of cable connection box 30 outside and the optical fiber distribution plate support that can be fixed on this cable turnover end face form, wherein the water-proofing treatment of difference cable and trunk cable is identical with embodiment 1, difference is, difference cable and trunk cable are fixed on this device by the cable fixing device of this cable connection box 30 outside, the cable fixing device of this cable connection box 30 outside comprises: the first fixed part 41 and intermediate plate 43 are through screw 431 (and another screw, be not shown in Fig. 5) assembling, the first fixed part 41 is fixed on hollow column jacket 32, second fixed part 42, through the screw on locking tight bundle fixture 44, the fixing cable 35 introducing this cable connection box 30.The setting of the first fixed part 41 is connected to through the second above-mentioned fixed part 42, namely be fixed on cable connection box 30 by heat-shrink tube 38 and the coated cable 35 of this elastic rubber shrinkage pipe, when when this cable connection box 30 mobile, the twisting of this cable 35 is bending, 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 because twisting the impact of bending cable 35, causing moisture to enter in cable connection box 30.This cable fixing device more comprises support sector 40, in order to connect the first fixed part 41 and the 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; Or the first fixed part 41, second fixed part 42 and support sector 40 are one-body molded.In addition, support sector 40 can connect the first fixed part 41, and this support sector 40 is fixed on cable connection box 30.In like manner, enter hollow column jacket 33 and also can be fixed in the same manner with heat-shrink tube 39 and the coated cable 37 of this elastic rubber shrinkage pipe.
The explanation of above embodiment 1,2 and 3, the cable connection box 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 trunk cable with heat-shrink tube or elastic rubber shrinkage pipe a kind of mode wherein only can be provided, cause telecommunication operator cost to increase and affect the problem of construction safety.
Above execution mode is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (20)
1. different modes can be taked to carry out a cable connection box for trunk cable water-proofing treatment, and this cable connection box comprises:
Protecting cover;
At least one cable turnover end face, this cable turnover end face has multiple hollow column jacket, wherein there is at least one hollow column jacket can pass in and out this cable connection box for the trunk cable preparing to carry out with heat-shrink tube water-proofing treatment through two, and have at least two hollow column jackets, and this hollow column jacket arbitrary can for preparing pass in and out this cable connection box with the trunk cable that elastic rubber shrinkage pipe carries out water-proofing treatment through one, wherein this elastic rubber shrinkage pipe can be coated on the trunk cable that the outside of this hollow column jacket and some do not penetrate this hollow column jacket.
2. different modes can be taked as claimed in claim 1 to carry out the cable connection box of trunk cable water-proofing treatment, more comprise the optical fiber distribution plate support that at least one can be fixed on this cable turnover end face, and this cable turnover end face has at least one fixture, for fixing this optical fiber distribution plate support, and this fixture can coordinate backbone optical cable to introduce the difference of position, fix the position that this optical fiber distribution plate support is different on cable turnover end face.
3. different modes can be taked as claimed in claim 1 to carry out the cable connection box of trunk cable water-proofing treatment, more comprise the position of the hollow column jacket that this cable turnover end face passes for trunk cable, it is the rectilinear path being arranged at the trunk cable entering this cable connection box through this hollow column jacket, after the optical fiber distribution plate of maximum quantity is installed in the side of this optical fiber distribution plate support, can not the position that stops by this optical fiber distribution plate and interfere.
4. different modes can be taked as claimed in claim 1 to carry out the cable connection box of trunk cable water-proofing treatment, more comprise the position of the hollow column jacket that this cable turnover end face passes for difference cable, it is the rectilinear path being arranged at the difference cable entering this cable connection box through this hollow column jacket, install the optical fiber distribution plate of maximum quantity in the side of this optical fiber distribution plate support after, can not the position that stops by this optical fiber distribution plate and interfere.
5. different modes can be taked as claimed in claim 1 to carry out the cable connection box of trunk cable water-proofing treatment, more include at least two elastic rubber shrinkage pipes, in order to pass in and out the water-proofing treatment of cable at this cable turnover end face of this cable connection box.
6. different modes can be taked as claimed in claim 1 to carry out the cable connection box of trunk cable water-proofing treatment, more include at least one heat-shrink tube, in order to pass in and out the water-proofing treatment of cable at this cable turnover end face of this cable connection box.
7. different modes can be taked as claimed in claim 1 to carry out the cable connection box of trunk cable water-proofing treatment, and more comprise this cable connection box outside and have at least one cable fixing device, described cable fixing device comprises:
First fixed part is fixed on cable connection box; And
Second fixed part is connected to this first fixed part, and this second fixed part is fixed and is about to introduce this cable connection box and prepare with the cable of one of both heat-shrink tube and elastic rubber shrinkage pipe waterproof.
8. different modes can be taked as claimed in claim 7 to carry out the cable connection box of trunk cable water-proofing treatment, and wherein this first fixed part is embedded on the cable turnover end face of this cable connection box.
9. different modes can be taked as claimed in claim 7 to carry out the cable connection box of trunk cable water-proofing treatment, and wherein this first fixed part is shaped on this cable connection box cable turnover end face.
10. different modes can be taked as claimed in claim 7 to carry out the cable connection box of trunk cable water-proofing treatment, wherein the cable of this first fixed part and this cable connection box pass in and out the fixed form of end face be select free spiro union, bamboo shoot connect, tightly restraint fixture, bundling ring, tight band form group one of them.
11. can take different modes to carry out the cable connection box of 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 by tightly restrainting fixture, group that bundling ring, tight band form one of them.
12. can take different modes to carry out the cable connection box of trunk cable water-proofing treatment as claimed in claim 7, more comprise support sector in order to connect this first fixed part and this second fixed part.
13. can take different modes to carry out the cable connection box of trunk cable water-proofing treatment as claimed in claim 12, and wherein this second fixed part is shaped in this support sector.
14. can take different modes to carry out the cable connection box of trunk cable water-proofing treatment as claimed in claim 12, and wherein this second fixed part is mechanically connected and fixed on this support sector.
15. can take different modes to carry out the cable connection box of trunk cable water-proofing treatment as claimed in claim 12, and wherein this first fixed part is shaped in this support sector.
16. can take different modes to carry out the cable connection box of trunk cable water-proofing treatment as claimed in claim 12, and wherein this first fixed part is mechanically connected and fixed on this support sector.
17. can take different modes to carry out the cable connection box of trunk cable water-proofing treatment as claimed in claim 12, and 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. can take different modes to carry out the cable connection box of trunk cable water-proofing treatment as claimed in claim 12, and wherein the material of this support sector is selected from metal, plastics and combination thereof.
19. 1 kinds of cable connection boxes comprise:
Protecting cover;
At least one cable turnover end face, this cable in-out end mask has:
At least one hollow column jacket can prepare for through two the trunk cable turnover carrying out water-proofing treatment in the first way; And
At least two hollow column jackets, wherein this hollow column jacket arbitrary can prepare for through one the trunk cable turnover carrying out water-proofing treatment in a second manner, and wherein this first method or second method water-proofing treatment can form waterproof construction between the trunk cable that the outside of this hollow column jacket and some do not penetrate this hollow column jacket.
20. 1 kinds of cable connection boxes, comprise cable turnover end face, this cable in-out end mask has:
At least one hollow column jacket can for through prepare carry out water-proofing treatment in the first way and through bending trunk cable turnover;
At least one hollow column jacket, wherein this hollow column jacket arbitrary can prepare for through one the trunk cable turnover carrying out water-proofing treatment in a second manner, and wherein this first method or second method water-proofing treatment can form waterproof construction between the trunk cable that the outside of this hollow column jacket and some do not penetrate this hollow column jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708989.1A CN104577938A (en) | 2009-05-06 | 2009-05-06 | Cable junction box capable of waterproofing main cables in different manners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708989.1A CN104577938A (en) | 2009-05-06 | 2009-05-06 | Cable junction box capable of waterproofing main cables in different manners |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103021263A Division CN101882777A (en) | 2009-05-06 | 2009-05-06 | Cable joint box capable of adopting different modes to conduct waterproofing treatment on main cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104577938A true CN104577938A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410708989.1A Pending CN104577938A (en) | 2009-05-06 | 2009-05-06 | Cable junction box capable of waterproofing main cables in different manners |
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| CN (1) | CN104577938A (en) |
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| CN2426647Y (en) * | 2000-05-30 | 2001-04-11 | 全冠企业有限公司 | Cable fixing device |
| CN2446701Y (en) * | 2000-09-13 | 2001-09-05 | 镇江市江冠电器有限公司 | High elasticity cold contraction cable intermediate joint sheath |
| JP2002139634A (en) * | 2000-11-01 | 2002-05-17 | Fujikura Ltd | Water stop structure for cable hole of optical closure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000038291A1 (en) * | 1998-12-22 | 2000-06-29 | Ccs Technology, Inc. | Cable system for use in hazardous environments |
| CN2411609Y (en) * | 1999-06-09 | 2000-12-20 | 四川省新都县湖城热缩防腐绝缘材料厂 | Railway signal cable heat-shrinkage sleeve multi-splice connecting box |
| CN2403158Y (en) * | 1999-11-09 | 2000-10-25 | 马金亮 | Rubber sheath device for distribution cable |
| CN2426647Y (en) * | 2000-05-30 | 2001-04-11 | 全冠企业有限公司 | Cable fixing device |
| CN2446701Y (en) * | 2000-09-13 | 2001-09-05 | 镇江市江冠电器有限公司 | High elasticity cold contraction cable intermediate joint sheath |
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