CN107317292B - Ground laying device for leaky cable - Google Patents
Ground laying device for leaky cable Download PDFInfo
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- CN107317292B CN107317292B CN201710498724.7A CN201710498724A CN107317292B CN 107317292 B CN107317292 B CN 107317292B CN 201710498724 A CN201710498724 A CN 201710498724A CN 107317292 B CN107317292 B CN 107317292B
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- leaky cable
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- bracket
- leaky
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- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
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Classifications
-
- 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
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
-
- 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
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
- H02G9/025—Coverings therefor, e.g. tile
Landscapes
- Near-Field Transmission Systems (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a leaky cable ground laying device, which comprises a buckle device for fixing a leaky cable, a supporting device for supporting the buckle device and connecting with the ground and a protecting device for protecting the leaky cable, wherein the supporting device comprises an upper bracket and a lower bracket, the lower bracket is of a square U-shaped structure, the upper bracket is of an inverted U-shaped structure, the upper bracket is buckled on the lower bracket, the two side arms of the upper bracket are provided with corresponding long waist holes, the top of the upper bracket is provided with a first assembly hole, the two ends of the top of the upper bracket are respectively provided with a second assembly hole, and the bottom of the lower bracket is provided with a third assembly hole; through set up long waist hole on upper bracket and lower carriage, and then can adjust whole strutting arrangement's height, not only can guarantee that leakage coaxial cable is on the subaerial horizontal installation of unevenness, and can carry out the upper and lower regulation to leakage coaxial cable's laying height, guarantee to reach the preferred distance between leakage coaxial cable and the vehicle antenna.
Description
Technical Field
The invention relates to the technical field of leaky cable fixing devices in urban rail transit and high-speed railway wireless communication systems, in particular to a leaky cable ground laying device.
Background
The subway construction of each city in China enters a rapid development period; the method has the advantages that a plurality of subway lines are built in Shanghai, beijing and Guangzhou, and a plurality of subway projects of the cities such as Shenzhen, dalian, nanjing, chongqing, wuhan, tianjin, shenyang and Hangzhou are fully started, and the subway projects of the cities such as Xian and Qingdao are planned; the mobile communication in the subway is an important means for ensuring driving safety, improving transportation efficiency and management level, improving service quality and the like; the field intensity coverage of the leaky coaxial cable has obvious superiority, so that the leaky coaxial cable is widely applied to a tunnel wireless communication system; the current urban rail transit wireless communication system in China is divided into a special wireless communication system and a public wireless communication system, wherein the special wireless communication system comprises a wireless dispatching communication system, a train control information vehicle-ground wireless transmission system, a mobile television system, public security wireless, fire control wireless emergency communication system, a mobile television system, a passenger guide information system and the like; the public wireless communication system comprises 2G, 3G, WIFI and 4G wireless signals of three major operators of China Mobile, unicom and telecom, and the like.
In the train-ground wireless transmission system, a leaky coaxial cable is arranged below a train body and on the ground beside a steel rail, the height of the leaky coaxial cable is lower than the height of a rail surface of the steel rail, the arrangement direction of the leaky coaxial cable is the same as the extending direction of the steel rail, a vehicle-mounted antenna is arranged at the bottom of the train body, and the position of the vehicle-mounted antenna is opposite to the position where the leaky coaxial cable is fixed; the existing leaky cable ground laying device is characterized in that a nonmetallic cover plate is connected with a U-shaped metal bracket through a slideway, leaky coaxial cables are fixed on leaky cable clamping bundles, strong wind generated by a train in high-speed running easily generates vibration and impact effects on the leaky cables, the nonmetallic cover plate continuously vibrates in the slideway of the U-shaped metal bracket, and the nonmetallic cover plate is easily damaged or falls off from the slideway so as to lose the protection effect on the leaky coaxial cables; the bracket cannot be adjusted up and down, construction is inconvenient, and unbalance of the height of field installation is caused; the existing ground laying device is low in modularization degree, and the device is very inconvenient to detach and replace.
Therefore, there is an urgent need to design a new leaky cable ground laying device to solve the above-mentioned problems and meet the ground laying requirements of leaky coaxial cables.
Disclosure of Invention
The invention aims to provide a leaky cable ground laying device which can ensure the horizontal installation of leaky cables on uneven ground, can effectively fix and protect the leaky cables and is very simple to disassemble and install.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a leaky cable ground laying device, is including the buckle device that is used for fixed leaky cable, be used for supporting buckle device and be connected with ground strutting arrangement and set up the protection device that is used for protecting leaky cable on strutting arrangement, strutting arrangement includes upper bracket and lower carriage, and the lower carriage is square U type structure, and the upper bracket is the reverse square U type structure, and the upper bracket is detained and is established on the lower carriage, all is provided with corresponding long waist hole along vertical direction on upper arm of upper bracket and the lower carriage both sides arm, and the middle part at the top of upper bracket is provided with the first pilot hole that is used for connecting buckle device, and the both ends at the top of upper bracket are provided with the second pilot hole that is used for connecting protection device respectively, and the bottom of lower carriage is provided with the third pilot hole that is used for connecting ground.
Further the protection device is the safety cover, and the safety cover includes long banding cover body and the engaging lug of level setting in cover body lower extreme both sides, be provided with the fourth pilot hole corresponding with the second pilot hole on the engaging lug, evenly be provided with a plurality of through-holes that are used for ventilation and wave-transparent on the lateral wall of cover body along axial direction.
The clamping device further comprises a first clamping part and a second clamping part, the first clamping part is of a U-shaped structure, the second clamping part is of an inverted U-shaped structure, and a fifth assembly hole corresponding to the first assembly hole is formed in the bottom of the first clamping part; the upper ends of the two side arms of the first clamping part extend outwards respectively to form a first clamping hook, the lower ends of the two side arms of the second clamping part extend inwards respectively to form a second clamping hook, the middle part of the first clamping hook is provided with a limiting opening, the middle part of the second clamping hook is provided with a limiting strip matched with the limiting opening, and the first clamping hook and the second clamping hook are matched to form a clamping structure.
Further, the two side arms of the first buckling part are respectively provided with buckling elastic pieces, the lower ends of the buckling elastic pieces are fixed on the side arms of the first buckling part, and the upper ends of the buckling elastic pieces are pressed on the side arms of the second buckling part and used for preventing the second buckling part from loosening up and down.
Further, a splayed pressing sheet for pressing the leaky cable is arranged on the inner side wall of the top of the second clamping part.
Further, the cross section of the cover body is of an inverted U shape, and the connecting lugs are respectively arranged on the outer sides of the lower ends of the arms on the two sides of the cover body.
Further, the through holes are symmetrically arranged on two sides of the arc top of the cover body.
Further, at least one bracket for lifting the leaky cable is further arranged on the protective cover, the bracket comprises a supporting plate and an inverted splayed supporting plate arranged in the middle of the supporting plate, and two ends of the supporting plate are bent inwards to form hooks matched with connecting lugs on the protective cover.
The main advantages of the invention are as follows:
(1) Through the square U type design of lower carriage, the square U type design of upper bracket, the upper bracket is detained and is established on the lower carriage to and set up corresponding long waist hole on the side arm of upper bracket and the side arm of lower carriage, and then can adjust whole strutting arrangement's height, not only can guarantee that leakage coaxial cable installs at the subaerial level of unevenness, and can carry out the upper and lower regulation to leakage coaxial cable's laying height, guarantee to reach the preferred distance between leakage coaxial cable and the vehicle antenna.
(2) Through setting up the safety cover and evenly set up a plurality of through-holes that are used for ventilation and wave transmission along axial direction on the lateral wall of the cover body of safety cover, both can guarantee that the safety cover has better wave transmission, make communication system's signal strength better, when the train of high-speed operation passes through, the strong wind that the train produced gets into from the below of safety cover, discharges from the through-hole, can also effectually reduce the impact of strong wind to leakage coaxial cable and safety cover.
(3) Through the cooperation design of first buckle portion and second buckle portion, not only fixed to leakage coaxial cable is more firm, and to the dismouting of leakage coaxial cable all more convenient, through being provided with spacing mouth in the middle part of first trip, be provided with in the middle part of second trip with spacing mouth matched with spacing, after first buckle portion and second buckle portion block, can prevent effectively that the back-and-forth movement of second buckle portion, through setting up buckle shell fragment, can prevent effectively that the upper and lower of second buckle portion from moving to make the more firm of first buckle portion and second buckle portion block, leakage coaxial cable sets up difficult pine in buckle device.
(4) By arranging the bracket at the bottom of the protective cover, the bracket supports the leaky coaxial cable, so that the middle part of the leaky coaxial cable can be effectively prevented from falling down due to the fact that the distance between the supporting devices is far, and the leaky coaxial cable is protected.
(5) The modularization degree of the whole device is higher, the labor division of the supporting device, the buckling device and the protecting device is clear, the disassembly and the assembly are convenient, and when a certain module is damaged, the quick replacement is convenient.
Drawings
FIG. 1 is a schematic view of a supporting device and a fastening device according to the present invention;
FIG. 2 is a schematic view of a protective cover according to the present invention;
fig. 3 is a schematic structural view of the bracket according to the present invention.
Detailed Description
The technical scheme of the invention is further described below by referring to the drawings and the embodiments, as shown in fig. 1, 2 and 3, a leaky cable ground laying device comprises a buckle device for fixing a leaky cable, a supporting device for supporting the buckle device and being connected with the ground, and a protecting device arranged on the supporting device for protecting the leaky cable, wherein the supporting device comprises an upper bracket 3 and a lower bracket 2, the lower bracket 2 is of a square U-shaped structure, the upper bracket 3 is of an inverted U-shaped structure, and the upper bracket 3 is buckled on the lower bracket 2; corresponding long waist holes 14 are formed in the upper side arm of the upper bracket 3 and the lower side arm of the lower bracket 2 along the vertical direction, the upper bracket 3 and the lower bracket 2 are fixed through adjusting bolts matched with the long waist holes 14, the relative height between the upper bracket 3 and the lower bracket 2 can be adjusted through the adjusting bolts in the whole device in the installation process, the leaky coaxial cable is guaranteed to be parallel to a track when being laid, the laying height of the leaky coaxial cable can be adjusted up and down, and a better distance between the leaky coaxial cable and a vehicle-mounted antenna is guaranteed; the middle part at the top of upper bracket 3 is provided with the first pilot hole that is used for connecting buckle device, and the both ends at the top of upper bracket 3 are provided with the second pilot hole 4 that is used for connecting protection device respectively, and the bottom of lower carriage 2 is provided with the third pilot hole 1 that is used for connecting ground, in the installation, passes third pilot hole 1 through the expansion anchor and fixes lower carriage 2 subaerial.
The protection device is a protection cover, the protection cover comprises a strip-shaped cover body 15 and connecting lugs 17 horizontally arranged on two sides of the lower end of the cover body 15, the cross section of the cover body 15 is in an inverted U shape, the connecting lugs 17 are respectively arranged on the outer sides of the lower ends of arms on two sides of the cover body 15, fourth assembly holes 18 corresponding to the second assembly holes 4 are formed in the connecting lugs 17, the second assembly holes 4 and the fourth assembly holes 18 are threaded holes, and the protection cover is fixed on the support device through fastening bolts matched with the second assembly holes 4 and the fourth assembly holes 18; the side wall of the cover body 15 is uniformly provided with a plurality of through holes 16 used for ventilation and wave transmission along the axial direction, the through holes 16 can ensure that the protective cover has better wave transmission performance, so that the signal intensity of a communication system is better, when a train running at a high speed passes through, strong wind generated by the train enters from the lower part of the protective cover and is discharged from the through holes 16, the impact of the strong wind on a leaky coaxial cable and the protective cover can be effectively reduced, and the through holes 16 are symmetrically arranged on two sides of the arc top of the cover body 15, so that the strong wind brought by the trains running on two sides can be effectively restrained.
The buckle device comprises a first buckle part 5 and a second buckle part 6, the first buckle part 5 is of a U-shaped structure, the second buckle part 6 is of an inverted U-shaped structure, a fifth assembly hole 13 corresponding to the first assembly hole is formed in the bottom of the first buckle part 5, the first assembly hole and the fifth assembly hole 13 are threaded holes, the first buckle part 5 is mounted on the upper bracket 3 through a half-round head fastening bolt matched with the first assembly hole and the fifth assembly hole 13, preferably the middle part of the bottom of the first buckle part 5 is downwards sunken to form a concave connecting part 23, the middle part of the top of the upper bracket 3 is downwards sunken to form a concave connecting matching part 22, the fifth assembly hole 13 is arranged on the bottom of the connecting part 23, the first assembly hole is arranged on the bottom of the connecting matching part 22, the connecting part 23 and the connecting matching part 22 are matched to enable the first buckle part 5 to be fixed on the upper bracket 3 and then not to rotate, and stability of the device is improved.
The upper ends of the two side arms of the first buckling part 5 respectively extend outwards to form a first buckling hook 10, the lower ends of the two side arms of the second buckling part 6 respectively extend inwards to form a second buckling hook 11, the middle part of the first buckling hook 10 is provided with a limiting opening 8, the middle part of the second buckling hook 11 is provided with a limiting strip 9 matched with the limiting opening 8, the first buckling hook 10 is matched with the second buckling hook 11 to form a buckling structure, and the matched design of the limiting opening 8 and the limiting strip 9 can effectively prevent the second buckling part 5 from moving forwards and backwards; the two side arms of the first buckling part 5 are also respectively provided with a buckling elastic piece 12, the lower end of the buckling elastic piece 12 is fixed on the side arm of the first buckling part 5, the upper end of the buckling elastic piece 12 is tightly pressed on the side arm of the second buckling part 6 to prevent the second buckling part 6 from loosening up and down, so that the buckling between the first buckling part 5 and the second buckling part 6 is firmer, and a leaky coaxial cable is arranged in the buckling elastic piece and is not easy to loosen; the splayed pressing piece 7 used for pressing the leaky cable is further arranged on the inner side wall of the top of the second clamping part 6, and the splayed pressing piece 7 can effectively reduce the misalignment of the leaky hole on the leaky cable and the train antenna caused by rotation of the leaky cable in the clamping device, so that the signal quality is ensured.
The lower part of the protective cover is also provided with at least one bracket for lifting the leaky cable, the bracket comprises a supporting plate 19 and an inverted splayed supporting plate 21 arranged in the middle of the supporting plate 19, both ends of the supporting plate 19 are inwards bent to form a hook 20 matched with a connecting lug 17 on the protective cover, and the opening of the hook 20 faces the inverted splayed supporting plate 2; the inverted splayed supporting piece 21 has better lifting and fixing effects on the leaky cable; when the anti-falling protective cover is used, the bottom of the protective cover is clamped on the connecting lug 17 by the bracket at intervals according to the length of the anti-falling protective cover, so that the anti-falling protective cover can hold up the anti-falling protective cover and prevent the anti-falling protective cover from falling down due to the weight of the anti-falling protective cover.
When the device is used, the device is arranged on the outer side of a certain track or between two tracks, the laying direction of a leakage cable is consistent with the extending direction of the track, a pair of lower brackets 2 are respectively fixed on the ground at two ends of the leakage cable by using expansion anchor bolts according to the length of the leakage cable, then the two upper brackets 3 are respectively fixed with the lower brackets 2, and then two first buckling parts 5 are respectively fixed on the upper brackets 3; after the two first buckling parts 5 are fixed, placing the leakage cable on the two first buckling parts 5, observing whether the leakage cable is parallel to the track, if not, adjusting the leakage cable to a position parallel to the track by using an adjusting bolt through long waist holes 14 arranged on the upper bracket 3 and the lower bracket 2, and adjusting the height of the leakage cable according to a preferred distance between the leakage cable and the locomotive; after the whole adjusting process is finished, the leaky cable is rotated to enable the leaky hole on the leaky cable to reach the position corresponding to the locomotive antenna, then the leaky cable is tightly pressed by utilizing the two second clamping parts 6 to be respectively clamped with the two first clamping parts 5, and the splayed pressing sheet 7 on the first clamping parts 5 is pressed on the leaky cable to prevent the leaky cable from rotating; and then the protective cover is covered on the leaky cable, two ends of the protective cover are respectively fixed with the two upper brackets 3, when the length of the leaky cable is overlong and the middle part is easy to fall down, a bracket is buckled at a certain distance below the protective cover, the inverted splayed supporting piece 21 on the bracket supports the leaky cable to finish the installation of the whole device, and when the leaky coaxial cable is actually used, a plurality of groups of supporting devices and buckling devices can be adopted to install the leaky coaxial cable, so long as the leaky cable is ensured to be parallel to the track.
In this embodiment, the upper bracket 3 and the lower bracket 2 may be made of metal or high-strength non-metal, and when the upper bracket 3 and the lower bracket 2 are made of metal, corrosion protection is required; the first buckling part 5, the second buckling part 6 and the bracket are made of high-strength nylon PA66 materials, the protective cover is made of unsaturated polyester resin special for SMC, a low shrinkage agent, flame retardant filler, glass fiber roving, an initiator, a release agent, a thickening agent and a coupling agent in a mould pressing mode, wherein the unsaturated polyester resin special for SMC accounts for 21% in the total amount, the low shrinkage agent accounts for 8% in the total amount, the flame retardant filler accounts for 38% in the total amount, the glass fiber untwisted coarse sand accounts for 26% in the total amount, the ultraviolet resistance agent accounts for 5% in the total amount, the initiator accounts for 1% in the total amount, the release agent accounts for 0.5% in the total amount, the thickening agent accounts for 0.3% in the total amount, and the coupling agent accounts for 0.2% in the total amount; the protective cover has the advantages of good wave permeability, light weight, high strength, good flame retardant effect, high toughness, corrosion resistance, ageing resistance and long service life, and plays a good role in protecting the leaky coaxial cable.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the technical solutions according to the embodiments of the present invention.
Claims (8)
1. The utility model provides a leaky cable ground laying device, includes the buckle device that is used for fixed leaky cable, is used for supporting buckle device and is connected with ground strutting arrangement and sets up the protection device who is used for protecting leaky cable on strutting arrangement, its characterized in that: the supporting device comprises an upper support and a lower support, wherein the lower support is of a square U-shaped structure, the upper support is of an inverted square U-shaped structure, the upper support is buckled on the lower support, corresponding long waist holes are formed in the upper side arms of the upper support and the lower side arms of the lower support along the vertical direction, a first assembly hole for connecting a buckling device is formed in the middle of the top of the upper support, second assembly holes for connecting a protection device are formed in the two ends of the top of the upper support respectively, and a third assembly hole for connecting the ground is formed in the bottom of the lower support.
2. The leaky cable ground laying apparatus of claim 1, wherein: the protection device is a protection cover, the protection cover comprises a strip-shaped cover body and connecting lugs horizontally arranged on two sides of the lower end of the cover body, fourth assembly holes corresponding to the second assembly holes are formed in the connecting lugs, and a plurality of through holes used for ventilation and wave transmission are uniformly formed in the side wall of the cover body along the axial direction.
3. The leaky cable ground laying apparatus as claimed in claim 2, wherein: the clamping device comprises a first clamping part and a second clamping part, the first clamping part is of a U-shaped structure, the second clamping part is of an inverted U-shaped structure, and a fifth assembly hole corresponding to the first assembly hole is formed in the bottom of the first clamping part; the upper ends of the two side arms of the first clamping part extend outwards respectively to form a first clamping hook, the lower ends of the two side arms of the second clamping part extend inwards respectively to form a second clamping hook, the middle part of the first clamping hook is provided with a limiting opening, the middle part of the second clamping hook is provided with a limiting strip matched with the limiting opening, and the first clamping hook and the second clamping hook are matched to form a clamping structure.
4. A leaky cable ground laying apparatus as claimed in claim 3, wherein: the two side arms of the first buckling part are also respectively provided with buckling elastic pieces, the lower ends of the buckling elastic pieces are fixed on the side arms of the first buckling part, and the upper ends of the buckling elastic pieces are pressed on the side arms of the second buckling part and used for preventing the second buckling part from loosening up and down.
5. The leaky cable ground laying apparatus as claimed in claim 4, wherein: the splayed pressing piece used for pressing the leaky cable is arranged on the inner side wall of the top of the second clamping part.
6. A leaky cable ground laying apparatus as claimed in any of claims 2-5, wherein: the cross section of the cover body is of an inverted U shape, and the connecting lugs are respectively arranged on the outer sides of the lower ends of the arms on the two sides of the cover body.
7. The leaky cable ground laying apparatus of claim 6, wherein: the through holes are symmetrically arranged on two sides of the arc top of the cover body.
8. The leaky cable ground laying apparatus of claim 6, wherein: the protective cover is also provided with at least one bracket for lifting the leaky cable, the bracket comprises a supporting plate and an inverted splayed supporting piece arranged in the middle of the supporting plate, and both ends of the supporting plate are bent inwards to form hooks matched with connecting lugs on the protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710498724.7A CN107317292B (en) | 2017-06-27 | 2017-06-27 | Ground laying device for leaky cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710498724.7A CN107317292B (en) | 2017-06-27 | 2017-06-27 | Ground laying device for leaky cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107317292A CN107317292A (en) | 2017-11-03 |
| CN107317292B true CN107317292B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710498724.7A Active CN107317292B (en) | 2017-06-27 | 2017-06-27 | Ground laying device for leaky cable |
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| Country | Link |
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| CN (1) | CN107317292B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109038391A (en) * | 2018-07-19 | 2018-12-18 | 中铁二院工程集团有限责任公司 | Cable clamp is leaked in suspension type monorail traffic |
| CN109888687A (en) * | 2019-03-20 | 2019-06-14 | 上海睿中实业股份公司 | A kind of novel leaky cable holding clamp |
| KR102151805B1 (en) * | 2020-05-21 | 2020-09-03 | (주)엔탑엔지니어링 | Apparatus for fixing underground pipe for transmission and distribution of electricity having transfortable bracket |
| KR102151809B1 (en) * | 2020-05-21 | 2020-09-03 | (주)엔탑엔지니어링 | Fixing apparatus of inclined underground pipe for transmission and distribution of electricity |
| CN113937709B (en) * | 2021-09-30 | 2023-01-03 | 国网浙江省电力有限公司舟山供电公司 | Submarine cable anchor damage prevention device inserted into seabed |
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| CN107317292A (en) | 2017-11-03 |
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