Cable duct for Rail Transit System combines
Technical field
The present invention relates to field of mechanical technique, relate to the interval cable duct in ground in electrified railway or City Rail Transit System, particularly a kind of cable duct for Rail Transit System combines.
Background technology
Looped network cable installatition bad environments interval on the ground, if be directly exposed in air, drench with rain suffering for a long time to expose to the weather, although system is when cable type selecting, clear and definite cable should have anti-ultraviolet function, but be subject to the performance restriction of actual cable insulation and jacket material, in actual operating line, still occur the cable jacket even cable insulation situation of breaking.Looped network cable, once there is destruction of insulation, causes system short-circuit, and electric power system is paralysed, and whole city rail system will paralyse, and consequence is serious.And the replacing of looped network cable is not only for operating line work capacity is huge, have a strong impact on the normal operation of circuit, and diversion fee is expensive.So looped network cable installatition interval on the ground must consider fully perfect preventing coating protection measure.
At present, forceful electric power cable installatition for ground circuit can take following three kinds of laying scheme: cement concrete cable shallow slot lays, cable bearer installs sun shade additional and to lay and composite material cable groove lays, all there is better sun-proof result, but also need the cable installatition space requirement considering the first cross-section of cable and radical needs when laying, because composite material cable groove lays small volume, gross weight is lower, composite material cable groove is mostly adopted to lay at present, comprise the cable duct bottom land and cable duct groove lid etc. of U-shaped, but due to the laying installation of composite material cable groove consider sealing and sun-proof, the structure that is sealed and matched of cable duct bottom land and cable duct groove lid is more complicated, and install inconvenient, and certain difficulty is there is in heat radiation and draining etc.
Summary of the invention
The technical problem to be solved in the present invention is, provide a kind of sun-proof, rainproof, heat radiation, drainage effect good and use installation and maintenance conveniently combine for the cable duct of Rail Transit System.
Technical solution of the present invention is, a kind of cable duct for Rail Transit System with following structure is provided to combine, comprise the cable duct rmc monomer of some connections, described cable duct rmc monomer comprises that some intervals arrange cable duct support, for blocking cable duct support and two ends are provided with the reverse U shape cable duct groove lid of opening, described cable duct support is positioned at cable duct groove lid and is connected with cable duct groove lid.
After adopting above structure, cable duct for Rail Transit System of the present invention combines, compared with prior art, have the following advantages: by first arranging cable duct support, finally inverted U-shaped cable duct groove cover buckle is combined on cable duct support, changed by cable duct support and U-shaped cable duct was first set in the past, the structure of tabular groove lid is set on U-shaped cable duct again, reduce firstly the weight and volume of first step installing device, easier for installation being easy to is adjusted, especially be positioned at spatially narrower, substantially increase setting accuracy, decrease installation and do not mate the probability reinstalled again, improve work efficiency and maintenance after convenience, maintenance, and the inverted U-shaped cable duct groove lid that the application's structure upper is integrated, waterproof effect and sun-proof result good, and bottom is interval arranges cable duct support, when stable support cable, make cable duct inside and ft connection, strengthen heat radiation and the drainage effect of cable duct assembly.
Because described cable duct frame bottom is all fixedly connected with back-up block, be connected with back-up block top bottom described cable duct groove lid, by first arranging back-up block, cable duct support is fixedly connected with again on back-up block, the fixing of cable duct support is facilitated by back-up block, and enhance cable duct assembly lower flow space, and carrying cable groove groove lid, increase stability and the practical life of total.
As a modification of the present invention, described cable duct support both ends are equipped with for holding bolt with the through hole fixed by cable duct support, by bolt, especially chemical bolt attached cable groove support and back-up block or other attachment faces, convenient and swift, Stability Analysis of Structures.
Improve as another kind of the present invention, described through hole comprises the first through hole and the second through hole that are separately positioned on cable duct support both ends, the first described through hole and the second through hole are waist shaped hole, by cable duct support two ends, waist shaped hole is set, make cable duct support that space in waist shaped hole can be utilized to carry out the movement in orientation, have adjusted cable duct mount orientations, make to coordinate between multiple cable duct support better, and can the error of position of mounting hole on limited elimination back-up block.
Also have a kind of improvement as of the present invention, in vertical state, making cable duct bracket adjustment orientation more have more direction can regulate, and makes easier for installation for the first described through hole and the axis of the second through hole.
Also have a kind of improvement as of the present invention, described cable duct cradle top is interval with some separator of battery platess, and described adjacent separator of battery plates and cable duct cradle top form the cable duct district holding cable, makes cable fixing more stable.
A kind of improvement is also had as of the present invention, described cable duct district is provided with at least one connecting element for attached cable, described connecting element is soft materials and two ends and top, cable duct district removably connect, and considerably increases the stability of cable, and convenient installation.
Also have a kind of improvement as of the present invention, described cable duct frame bottom is provided with at least two projections of conflicting with back-up block end face, saves material, and under ensureing the fixing situation of cable duct support and back-up block, adds result of ventilating heat dissipation.
A kind of improvement is also had as of the present invention, described cable duct rmc monomer junction is positioned at above a cable duct support, described cable duct support two ends are removably connected with the sealing fixed strip in gap, hermetically sealed cable groove rmc monomer junction, by sealing fixed strip and cable duct support, multiple cable duct rmc monomer is coupled together, utilize original cable duct support, reduce volume, and utilize sealing fixed strip to block gap, cable duct rmc monomer junction, ensure that leak tightness.
A kind of improvement is also had as of the present invention, described sealing fixed strip two ends are hamulus, described cable duct support two ends are provided with the groove or through hole that match with hamulus, by sealing fixed strip two ends are set to hamulus, sealing are fixedly mounted convenient.
A kind of improvement is also had as of the present invention, the adjusting part for regulating sealing fixed strip length is provided with in the middle part of described sealing fixed strip, regulate adjusting part, sealing fixed strip is made to be longer length, and sealing fixed strip two ends are fixed, regulate adjusting part afterwards, sealing fixed strip length is reduced, make sealing fixed strip by fixing for cable duct groove lid stay bearing plate again.
Accompanying drawing explanation
Fig. 1 is the scheme of installation one that the cable duct for Rail Transit System of the present invention combines.
Fig. 2 is the scheme of installation two that the cable duct for Rail Transit System of the present invention combines.
Fig. 3 is the structural representation that the cable duct for Rail Transit System of the present invention combines.
Fig. 4 is A place enlarged drawing in Fig. 3.
Fig. 5 is the structural representation of cable duct support.
Shown in figure: 1, back-up block; 2, cable duct support; 21, separator of battery plates; 22, cable duct district; 23, projection; 24, the first through hole; 25, the second through hole; 26, connecting element; 3, cable duct groove lid; 4, fixed strip is sealed; 41, adjusting part.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Refer to Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4 and Fig. 5, cable duct for Rail Transit System of the present invention combines, comprise the cable duct rmc monomer of some connections, described cable duct rmc monomer comprises some spaced back-up blocks 1, be fixedly connected on the cable duct support 2 of back-up block 1 top for carrying cable, described back-up block 1 top braces has two ends to be provided with the inverted U-shaped cable duct groove lid 3 of opening, described cable duct support 2 is positioned at cable duct groove lid 3 and is connected with cable duct groove lid 3, by first arranging back-up block 1, cable duct support 2 is fixedly connected with again on back-up block 1, finally inverted U-shaped cable duct groove lid 3 is fastened on cable duct support 2, changed by cable duct support 2 and U-shaped cable duct was first set in the past, the structure of tabular groove lid is set on U-shaped cable duct again, reduce firstly the weight and volume of first step installing device, easier for installation being easy to is adjusted, especially be positioned at spatially narrower, substantially increase setting accuracy, decrease installation and do not mate the probability reinstalled again, improve work efficiency and maintenance after convenience, maintenance, and the inverted U-shaped cable duct groove lid 3 that the application's structure upper is integrated, waterproof effect and sun-proof result good, and bottom is spaced back-up block 1 and cable duct support 2, when stable support cable, make cable duct inside and ft connection, strengthen heat radiation and the drainage effect of cable duct assembly.
Described cable duct support 2 both ends are equipped with for holding bolt with the through hole be fixedly connected with back-up block 1 by cable duct support 2, pass through bolt, especially chemical bolt attached cable groove support 2 and back-up block 1, convenient and swift, Stability Analysis of Structures, described through hole comprises the first through hole 24 and the second through hole 25 being separately positioned on cable duct support 2 both ends, the first described through hole 24 and the second through hole 25 are waist shaped hole, by cable duct support 2 two ends, waist shaped hole is set, make cable duct support 2 that space in waist shaped hole can be utilized to carry out the movement in orientation, have adjusted cable duct support 2 orientation, make to coordinate better between multiple cable duct support 2, and can the error of position of mounting hole on limited elimination back-up block 1, the first described through hole 24 and the axis of the second through hole 25 are in vertical state, make cable duct support 2 regulate orientation more to have more direction can regulate, make easier for installation.
Described cable duct support 2 head clearance is provided with some separator of battery platess 3, described adjacent separator of battery plates 3 forms with cable duct support 2 top the cable duct district 22 holding cable, make cable fixing more stable, described cable duct district 22 is provided with at least one connecting element 26 for attached cable, described connecting element 26 is soft materials and two ends and top, cable duct district 22 removably connect, considerably increase the stability of cable, and convenient installation.
Be provided with at least two projections 23 of conflicting with back-up block 1 end face bottom described cable duct support 2, save material, and ensure that cable duct support 2 is with under the fixing situation of back-up block 1, adds result of ventilating heat dissipation.
Described cable duct rmc monomer junction is positioned at above a cable duct support 2, described cable duct support 2 two ends are removably connected with the sealing fixed strip 4 in gap, hermetically sealed cable groove rmc monomer junction, multiple cable duct rmc monomer is coupled together with cable duct support 2 by sealing fixed strip 4, utilize original cable duct support 2, reduce volume, and utilize sealing fixed strip 4 to block gap, cable duct rmc monomer junction, ensure that leak tightness.
Described sealing fixed strip 4 two ends are hamulus 23, described cable duct support 2 two ends are provided with the groove or through hole that match with hamulus 23, by sealing fixed strip 4 two ends are set to hamulus 23, sealing is fixedly mounted convenient, the adjusting part 41 for regulating sealing fixed strip 4 length is provided with in the middle part of described sealing fixed strip 4, regulate adjusting part 41, sealing fixed strip 4 is made to be longer length, and sealing fixed strip 4 two ends are fixed, regulate adjusting part 41 afterwards, sealing fixed strip 4 length is reduced, make sealing fixed strip 4 by fixing for cable duct groove lid 3 stay bearing plate again.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.