CN215071515U

CN215071515U - Leakage cable protection device for rail transit

Info

Publication number: CN215071515U
Application number: CN202121262202.5U
Authority: CN
Inventors: 孙衍鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-12-07
Anticipated expiration: 2031-06-07

Abstract

The utility model provides a leakage cable protection device for rail transit, which comprises a lifting base and a leakage cable clamp arranged on the lifting base; the lifting base is connected with a leaky cable shield which is positioned on two sides of the leaky cable clamp and extends towards the adjacent lifting base; the lifting base is provided with a connecting piece used for connecting the leaky cable shield and protecting the leaky cable clamp; the connecting piece comprises a protective shell and connecting shells positioned on two sides of the protective shell, and a curved surface structure is arranged between the protective shell and the connecting shells; the protective shell is connected with the bottom edge of the connecting shell; the mounting plate is provided with a connecting part which can be quickly mounted on the lifting base; the condition that the leaky cable laid on the track pavement is reliably fixed and can be quickly installed and detached is improved.

Description

Leakage cable protection device for rail transit

Technical Field

The utility model relates to a field, concretely relates to leaky cable protector for track traffic.

Background

With the rapid development of national economy in China, cities of various provinces in China are engaged in vigorous development and construction of urban rail transit, and the rapid development of urban rail transit makes more and more applications put higher requirements on wireless communication systems. Urban rail transit wireless communication systems are divided into private wireless communication systems and public wireless communication systems. The special wireless communication system comprises a wireless dispatching communication system, a train control information vehicle-ground wireless transmission system, a mobile television system, a public security wireless, fire-fighting wireless emergency communication system, a mobile television system, a passenger taking guide information system and the like. The public wireless communication system comprises 2G, 3G, WIFI and 4G wireless signals of three operators of China Mobile, Unicom and telecom, etc. The propagation characteristics of radio waves in a tunnel in an urban rail transit wireless communication system are different from the ground free space propagation characteristics. In the tunnel, on one hand, when the tunnel is bent more, the direct electric wave radiated by the directional antenna is difficult to propagate; on the other hand, the absorption loss and the multipath effect in the tunnel can cause the polarization disorder of the radio wave, and the propagation loss is increased. Therefore, the leaky cable is the best choice for realizing the wireless signal coverage of the radio waves in the urban rail transit field.

When the leaky cable is laid in the tunnel of the wireless communication system of the urban rail transit at present, the leaky cable is supported and installed mainly in a mode that a leaky cable fixture is installed on the wall of the tunnel, the installation height of the leaky cable fixture is different in different wireless communication systems, generally speaking, the installation height is about 1.5-5.0 m away from the rail surface, and the vertical distance between every two adjacent leaky cables is larger than 50cm, so that mutual interference between the leaky cables is avoided.

In urban rail transit, in order to satisfy the requirement of stable signals in a moving car in a public wireless communication system, a leaky cable is generally laid beside a rail along the running direction of a train, so that the distance for collecting and receiving signals in the car is shortened.

After a plurality of lifting bases of fixed mounting along the track road surface and fixed mounting leaks cable fixture and carry out the centre gripping to leaking the cable along the line and support on lifting base, leak cable fixture position need can be convenient for carry out follow-up maintenance, generally protect alone leaking cable fixture position, consequently need realize the guard shield structure of quick installation, dismantlement in this position.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides a leaky cable protector for track traffic has solved the problem that the railway face laid the leaky cable reliably fixed and can realize quick installation, dismantlement.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a leakage cable protection device for rail transit comprises a lifting base and a leakage cable clamp arranged on the lifting base; the lifting base is connected with a leaky cable shield which is positioned on two sides of the leaky cable clamp and extends towards the adjacent lifting base;

the lifting base is provided with a connecting piece used for connecting the leaky cable shield and protecting the leaky cable clamp;

the connecting piece comprises a protective shell and connecting shells positioned on two sides of the protective shell, and a curved surface structure is arranged between the protective shell and the connecting shells;

the protective shell is connected with the bottom edge of the connecting shell;

but be equipped with the quick installation on the mounting panel connecting portion on the lift base.

Preferably, the connecting piece is of an integrally formed structure.

Preferably, the connecting part comprises limiting blocks fixedly connected to the mounting plate and arranged at intervals;

the limiting block is provided with an inverted hook structure which extends outwards and is convex.

Preferably, the lifting base comprises an upper base part and a lower base part, and the lower base part is in sliding fit with the upper base part;

an adjusting fastener is arranged between the lower part of the base and the upper part of the base;

and the lower part of the base is connected with an expansion fastener.

Preferably, the upper part of the base comprises a plate body, and a first folded plate and a second folded plate which are formed by downward stamping are arranged on the plate body;

two side edges of the first folded plate and two side edges of the second folded plate are oppositely bent to form sliding parts;

rectangular holes for mounting the adjusting fasteners are formed in the first folded plate and the second folded plate;

the plate body is further provided with a mounting hole matched with the connecting part in a buckling mode.

Preferably, the lower part of the base comprises a bottom plate and two side plates which are respectively fixedly connected to two ends of the bottom plate and extend upwards;

two side edges of the two side plates are oppositely bent to form a sliding cavity in sliding fit with the sliding part;

two all seted up the bar hole on the curb plate.

Compared with the prior art, the utility model discloses following beneficial effect has:

the leaky cable clamp is installed through the lifting base, and the lifting height of the leaky cable clamp can be adjusted; after the leaky cable clamp lays and clamps leaky cables along the track, the leaky cables along the track are covered and protected through a leaky cable shield; the mounting positions of the leaky cable clamps are shielded and protected through the connecting pieces, and the connecting pieces can be connected to the adjacent leaky cable shields in a seamless mode, so that leaky cables laid along the line are protected; can also satisfy and install, dismantle fast between connecting piece and the lift base.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of a connector;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is a schematic structural view of the elevating base;

FIG. 5 is a schematic top view of the upper portion of the base;

FIG. 6 is a perspective view of the upper portion of the base;

FIG. 7 is a perspective view of the lower portion of the base;

in the figure, the position of the upper end of the main shaft,

the lifting device comprises a lifting base 1, a base upper part 11, a plate body 111, a first folding plate 112, a second folding plate 113, a sliding part 114, a rectangular hole 115, a mounting hole 116, a base lower part 12, a bottom plate 121, a side plate 122, a sliding cavity 123, a strip-shaped hole 124, an adjusting fastener 13, an expansion fastener 14, a leaky cable clamp 2, a leaky cable shield 3, a connecting piece 4, a protective shell 41, a connecting shell 42, a curved surface structure 43, a mounting plate 44, a connecting part 45, a limiting block 451 and an inverted hook structure 452.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

As shown in fig. 1 and fig. 2, the embodiment of the utility model provides a leaky cable protector for track traffic is proposed, it includes lift base 1 and installs leaky cable fixture 2 on lift base 1, wherein, leaky cable fixture 2 includes base and apron, and apron one end is rotated and is installed on the base, and apron other end buckle is connected on the base, supports back leaky cable fixture 2 through lift base 1, is convenient for carry out the centre gripping at same height to leaky cable.

The lifting base 1 is also connected with leaky cable shields 3 which are positioned at two sides of the leaky cable clamp 2 and extend towards the adjacent lifting base 1, and leaky cables laid along the line are protected by the leaky cable shields 3; meanwhile, a connecting piece 4 used for connecting the leaky cable shield 3 and protecting the leaky cable clamp 2 is arranged on the lifting base 1, and the leaky cable shields 3 on two sides are connected through the connecting piece 4 to form comprehensive protection on the whole leaky cable; the connecting piece 4 comprises a protective shell 41 and connecting shells 42 positioned at two sides of the protective shell 41, and a curved surface structure 43 is arranged between the protective shell 41 and the connecting shells 42; an outward extending mounting plate 44 is arranged at the bottom edge of the protective shell 41 and the connecting shell 42, and a connecting part 45 which can be quickly mounted on the lifting base 1 is arranged on the mounting plate 44; through a quick buckle connection mode between the connecting part 45 and the lifting base 1, the leakage cable shields 3 on two sides can be tightly pressed after being clamped and can be quickly installed on the lifting base 1; thereby, the operations of installation, maintenance and the like of the leaky cable clamp 2 can be realized.

In order to ensure the strength of the whole connecting piece 4 and the matching with the leakage cable shield 3, the whole connecting piece 4 is of an integrated structure.

As shown in fig. 3, the connecting portion 45 includes the fixed connection on the mounting plate 44 and the limiting blocks 451 arranged at intervals, the limiting blocks 451 are provided with the barb structures 452 extending outwards and protruding, and the two limiting blocks 451 have a spacing distance therebetween, so that the lifting base 1 can be prevented from being jammed in a certain elastic manner, and the barb structures 452 can be used for realizing reverse limiting after being jammed in the lifting base 1.

As shown in fig. 4, after the leaky cable clamp 2 is installed, the leaky cables clamped along the line are basically at the same height through the height adjustment of the lifting base 1; the lifting base 1 comprises a base upper part 11 and a base lower part 12, and the base lower part 12 is matched with the base upper part 11 in a sliding way; meanwhile, an adjusting fastener 13 is arranged between the lower part 12 of the base and the upper part 11 of the base, and the relative lifting height is fixed through the adjusting fastener 13; and an expansion fastener 14 is connected and installed on the base lower part 12, the whole lifting base 1 is fixed on a track road surface through the expansion fastener 14, and after being locked, the lifting base is supported and leveled through the base lower part 12.

As shown in fig. 5 and 6, the upper base portion 11 includes a plate 111, and a first folded plate 112 and a second folded plate 113 formed by downward stamping are disposed on the plate 111, two sides of the first folded plate 112 and two sides of the second folded plate 113 are bent oppositely to form a sliding portion 114, and at the same time, rectangular holes 115 for mounting the adjusting fasteners 13 are disposed on both the first folded plate 112 and the second folded plate 113; a mounting hole 116 which is matched with the connecting part 45 in a snap fit manner is formed in the plate body 111; the connecting parts 45 are connected through the mounting holes 116 to form a limit, so that the whole connecting part 45 can be stably mounted on the upper part 11 of the base; when the height is adjusted, the sliding part 114 moves relative to the lower base part 12, and the adjusting fastener 13 is installed through the rectangular hole 115 to form rotation prevention, so that the rotation caused by loosening is avoided.

As shown in fig. 7, the lower base portion 12 includes a bottom plate 121 and two side plates 122 respectively fixed to two ends of the bottom plate 121 and extending upward, and two sides of the two side plates 122 are bent oppositely to form a sliding cavity 123 slidably engaged with the sliding portion 114; and all seted up bar hole 124 on two curb plates 122, can restrict the height-adjusting distance of base upper portion 11 through bar hole 124 to can play the effect of direction to the slip process.

After installation, the installation height of the leaky cable clamp 2 is adjusted through the height adjustment of the upper part 11 of the base relative to the lower part 12 of the base, so that the height of the leaky cable along the laying line is in a basically consistent state, and the situation of bending and deformation of the leaky cable is avoided; after the leaky cable is laid, the whole leaky cable is protected through the leaky cable shield 3 and the connecting piece 4, and the leaky cable can be rapidly installed and detached, so that the leaky cable clamp 2 is conveniently maintained.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. A leakage cable protection device for rail transit comprises a lifting base (1) and a leakage cable clamp (2) arranged on the lifting base (1); the method is characterized in that:

the lifting base (1) is connected with a leaky cable shield (3) which is positioned at two sides of the leaky cable clamp (2) and extends towards the adjacent lifting base (1);

the lifting base (1) is provided with a connecting piece (4) which is used for connecting the leaky cable shield (3) and protecting the leaky cable clamp (2);

the connecting piece (4) comprises a protective shell (41) and connecting shells (42) positioned on two sides of the protective shell (41), and a curved surface structure (43) is arranged between the protective shell (41) and the connecting shells (42);

the protective shell (41) and the connecting shell (42) are connected at the bottom edge, and the mounting plate (44) extends outwards;

the mounting plate (44) is provided with a connecting part (45) which can be quickly mounted on the lifting base (1).

2. A leaky cable protection device for rail transit as claimed in claim 1, wherein:

the connecting piece (4) is of an integrally formed structure.

3. A leaky cable protection device for rail transit as claimed in claim 2, wherein:

the connecting part (45) comprises limit blocks (451) which are fixedly connected to the mounting plate (44) and are arranged at intervals;

the limiting block (451) is provided with an inverted hook structure (452) which extends outwards and protrudes.

4. A leaky cable protection device for rail transit as claimed in any one of claims 1 to 3, wherein: the lifting base (1) comprises an upper base part (11) and a lower base part (12), and the lower base part (12) is in sliding fit with the upper base part (11);

an adjusting fastener (13) is arranged between the lower part (12) of the base and the upper part (11) of the base;

and an expansion fastener (14) is connected and installed on the lower part (12) of the base.

5. A leaky cable protection device for rail transit as claimed in claim 4, wherein: the upper base part (11) comprises a plate body (111), and a first folded plate (112) and a second folded plate (113) which are formed by downward stamping are arranged on the plate body (111);

two side edges of the first folded plate (112) and two side edges of the second folded plate (113) are oppositely bent to form sliding parts (114);

the first folded plate (112) and the second folded plate (113) are respectively provided with a rectangular hole (115) for installing the adjusting fastener (13);

the plate body (111) is further provided with a mounting hole (116) which is in snap fit with the connecting part (45).

6. A leaky cable protection device for rail transit as claimed in claim 5, wherein: the lower part (12) of the base comprises a bottom plate (121) and two side plates (122) which are fixedly connected to two ends of the bottom plate (121) respectively and extend upwards;

two side edges of the two side plates (122) are oppositely bent to form a sliding cavity (123) in sliding fit with the sliding part (114);

two strip-shaped holes (124) are formed in the side plates (122).