Background
With the development of urban rail transit construction, trains have higher running density and higher running speed, which requires wireless communication systems of various standards applied to the field of rail transit, such as: the LTE-M train-ground wireless transmission signal system, the TETRA800M digital trunking dedicated communication, the civil communication system mainly based on three operators of china mobile, china unicom and china telecom, and the TETRA350M public security fire-fighting wireless communication system have more reliable safety to ensure the safe operation of trains on the line, and these wireless communication systems all need to realize the wireless communication in the field of rail transit by means of leaky cables.
In order to ensure the safety and reliability of the leaky cable laying, in recent years, various leaky cable clamps with different structures and functions are developed by many manufacturers at home and abroad to ensure the reliability of the leaky cable laying, through years of operation practices, operation and maintenance units find that the leaky cable clamps have quality problems, the operation safety of a line is seriously influenced, new technical requirements are provided for the structures and the functions of the leaky cable clamps for the relevant units, and national railway group companies, the Ministry of industry and communications and the track traffic society also set or revise relevant standards of the leaky cable clamps in the process of tightening and sealing drums. So as to ensure the safety and reliability of the leaky cable clamp and the convenience and rapidness of construction;
as patent numbers: CN 212649025U, the patent name of which is a cable clamp suitable for clamping a reducing cable, wherein a cover plate and a clamp seat of the cable clamp adopt nylon connecting ropes, the cable clamp runs for a long time in a construction process and in a low-temperature environment, the connecting ropes are easy to break, the safety is affected, on the one hand, a left hanging buckle and a right hanging buckle are arranged in the same horizontal direction, the installation and the disassembly are inconvenient, the construction is inconvenient, and a pressing plate in the middle of the cover plate is a closed cavity; on the other hand: the leaky cable clamp does not have a self-locking function and is very easy to disengage under the tensile bearing capacity and the shearing bearing capacity.
Disclosure of Invention
The technical problem to be solved by the present invention is to solve the above-mentioned deficiencies of the prior art,
provides a novel interlinked self-locking leaky cable fixing system.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a novel interlinkage auto-lock leaky cable fixing system, includes cassette and apron, and inside leaky cable holding chamber that forms behind cassette and the apron connection, the one end that the apron was kept away from to the cassette is link, its characterized in that: the clamping seat is movably connected with one end of the cover plate through a rotating shaft structure, and the other end of the cover plate is connected with the clamping seat through a connecting ring locking device in a buckling mode.
Adopt above-mentioned technical scheme, the apron can be kept away from to the cassette one end can be nylon conical seat link or metal connecting rod link or adopt self tapping bolt's link, connected mode between cassette and the apron at present, the connection rope or the interlinkage area that current fixture generally adopted the nylon material in the trade are connected, but adopt the structure of connecting rope or interlinkage area connection, under construction or long-term operating condition, easily take place the fracture, in order to increase the reliability, this use is novel to adopt the mode of adopting the rotation axis to connect on one side at cassette and apron, make it difficult fracture, the reliability has been increased, the other end then connects through interlinkage locking device, it is difficult for throwing off and dismantlement convenience to have guaranteed behind the leaky cable fixture centre gripping leaky cable.
The novel interlinked self-locking leaky cable fixing system can be further set as follows: the interlinking locking device comprises a first hook and a second hook which are opposite in direction and not located on the same horizontal plane on the cover plate, a first hook connecting end and a second hook connecting end are arranged on the clamping seat, a third hook matched with the first hook is arranged at the first hook connecting end, a through groove for the second hook to pass through is formed in the second hook connecting end, and a locking inclined plane matched with the second hook is arranged at one end, far away from the clamping seat, of the through groove.
Adopt above-mentioned technical scheme, set up two opposite directions and not at the first couple and the second couple of same horizontal plane on the apron, with third couple and the cooperation of leading to the groove on the cassette, form two devices of interlinkage locking, this first couple after having guaranteed leaking the cable fixture centre gripping and leaking the cable, the difficult loosening of second couple locking, because two couples are not on same level, after opening first couple and third couple, press the second couple, the second couple just breaks away with leading to the locking inclined plane in groove very easily, consequently this structure still has the effect of convenient dismantlement.
The novel interlinked self-locking leaky cable fixing system can be further set as follows: the rotating shaft structure comprises first connecting rings oppositely arranged on the clamping seat, a second connecting ring matched with the first connecting rings is arranged between the two first connecting rings of the cover plate, and the two first connecting rings and the second connecting ring are connected through bolts.
Adopt above-mentioned technical scheme, the connection rope or the interlinkage area that generally adopt the nylon material in the trade are connected, but adopt the structure of connecting the rope or interlinkage area and connecting, under construction or long-term operating condition, easily take place the fracture, in order to increase the reliability, this use novel adoption makes it difficult fracture at cassette and apron on one side adoption mode of rotation axis connection, has increased the reliability.
The novel interlinked self-locking leaky cable fixing system can be further set as follows: one end of the connecting end of the conical base, which is far away from the clamping seat, is provided with a groove which is arranged oppositely, and the conical base is provided with a convex point which is matched with the groove.
By adopting the technical scheme, because the end of the conical base connecting end, which is far away from the clamping seat, is provided with the relatively-arranged groove, the conical base can be provided with the convex points matched with the grooves, so that the conical base and the convex points are not easy to rotate after being connected, and the clamping seat is not easy to turn after the leaky cable is installed.
The novel interlinked self-locking leaky cable fixing system can be further set as follows: and a plurality of anti-skidding teeth arranged at intervals are arranged in the leakage cable connecting cavity of the cover plate and the clamping seat.
By adopting the technical scheme, the anti-slip teeth matched with the anti-slip teeth are also arranged on the metal connecting rod through the anti-slip teeth, and after the metal connecting rod and the clamping seat are fastened through the bolt, the anti-slip teeth on the metal connecting rod and the clamping seat form good matching, so that the metal connecting rod is not easy to rotate, and the correct direction of installation of the cable leaking clamping seat and the cable leaking is ensured.
The invention has the beneficial effects that: the apron of leaking cable fixture is firm with the cassette centre gripping behind the installation leaking cable, realizes the interlinkage auto-lock after connecting, and difficult the throw off and dismantle conveniently sets up the recess on the cassette, guarantees to keep in a direction behind cassette and the installation of conical seat, and difficult emergence is rotated, guarantees that the cassette is difficult for turning to behind the installation leaking cable, sets up anti-skidding tooth on cassette and the apron, guarantees to leak after the installation to take along the difficult slip of axial, keeps good axial pull-out power.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Detailed Description
Referring to fig. 1-9: a novel interlinked self-locking leaky cable fixing system comprises a clamping seat 1 and a cover plate 2, wherein a leaky cable accommodating cavity 3 is formed in the clamping seat 1 and the cover plate 2 after the clamping seat 1 and the cover plate 2 are connected; when the fixture (the fixture is called after the clamping seat 1 and the cover plate 2 are connected) is installed on the inner wall of the tunnel, a self-tapping bolt, a metal connecting rod 7, a conical base 5 and the like are generally adopted
As shown in fig. 1, which is an embodiment when the metal connecting rod is connected to the card holder, a metal connecting rod 7 can be installed in the middle of the card holder 1 through a fastener 6, and both end faces of the metal connecting rod 7 are provided with connecting rod anti-slip teeth 71, when the metal connecting rod 7 and the card holder 1 are fastened through the fastener 6 (bolt), the connecting rod anti-slip teeth 71 on the metal connecting rod 7 and the bottom face of the card holder 1 form a good fit, so that the metal connecting rod 7 is not easy to rotate, and the correct direction of installation of the card holder 1 and a leaky cable is ensured, and the connecting rod anti-slip teeth 71 on the metal connecting rod 7 can adopt the connecting rod anti-slip teeth 71 shown in fig. 8 or the connecting rod anti-slip teeth 71 shown in fig. 9;
as shown in FIG. 2, which is an embodiment of the clamping seat 1 when the conical base 5 is installed, one end of the clamping seat 1, which is far away from the cover plate 2, is a conical base connection end 11, the conical base connection end 11 is connected with the conical base 5, one end of the conical base connection end 11, which is far away from the clamping seat 1, is provided with a groove 111 which is oppositely arranged, the conical base 5 is provided with a convex point 51 which is matched with the groove 111, the matching of the convex point 51 and the groove 111 can also ensure that the clamping seat 1 and a cable can not rotate after being installed, the clamping seat 1 and one end of the cover plate 2 are movably connected through a rotating shaft structure, the other end is buckled and connected through a interlinking locking device, the interlinking locking device comprises a first hook 21 and a second hook 22 which are opposite in the upper direction of the cover plate 2 and are not in the same horizontal plane, the clamping seat 1 is provided with a first hook connection end 12 and a second hook connection end 13, the first hook connection end 12 is provided with a third hook 121 which is matched with the first hook 21, the second couple link 13 is equipped with the logical groove 131 that supplies second couple 22 to pass, the one end that logical groove 131 kept away from cassette 1 is equipped with and locks inclined plane 132 with second couple 22 complex, the rotation axis structure includes the relative first go-between 14 that sets up on cassette 1, apron 2 is equipped with the second go-between 23 with first go-between 14 adaptation between two first go-between 14, two first go-between 14 and second go-between 23 pass through bolt 4 and connect, apron 2 and cassette 1 are equipped with the anti-skidding tooth 31 of a plurality of intervals settings in leaking cable joint chamber 3.