CN220868011U - Ecological cover of internally mounted contact net - Google Patents

Abstract

The utility model belongs to the technical field of railway equipment, and particularly relates to an ecological cover internally provided with a contact net, which comprises a basic steel frame for covering a railway track, roof boards arranged at the top of the basic steel frame and sound absorption side wall boards arranged at two sides of the basic steel frame, wherein the roof boards are provided with ventilation openings; and a contact net is fixed on the inner side of the basic steel frame. According to the utility model, the railway track, the railway vehicle and the contact net cover are combined through the ecological cover, so that the railway is isolated from the surrounding environment, and the problems of noise pollution, tail gas pollution, dust pollution and the like of the railway are effectively solved; the overhead line system is fixed on the ecological cover, and independent overhead line system upright posts are omitted, so that the construction cost is reduced, and interference of installation of the overhead line system on sight and environment can be avoided; meanwhile, the ventilation opening is formed in the roof board at the top of the ecological cover, so that heat generated during running of a train in the ecological cover can be timely dissipated, and meanwhile, wind pressure generated during running of the train in the ecological cover is timely relieved.

Description

Ecological cover of internally mounted contact net

Technical Field

The utility model belongs to the technical field of railway equipment, and particularly relates to an ecological cover internally provided with a contact net.

Background

Noise, dust, vibration, tail gas and the like in the running process of the railway can obviously influence surrounding residents and ecological environment, and particularly the influence of the freight railway with relatively low construction standard on the ecological environment and the human-occupied environment is more remarkable. And because of the requirement of installing the contact net, the electrified railway generally needs to widen the roadbed structure and the bridge structure, and needs to independently arrange the contact net upright post on the line roadbed structure and the bridge structure, and then the cantilever fixed contact net wire is installed on the upright post side, so that the cost is high.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide the ecological cover for internally installing the overhead line system, which can isolate the railway from the surrounding environment, effectively solve the problems of noise pollution, tail gas pollution, dust pollution and the like of the railway, fix the overhead line system on the ecological cover, cancel the overhead line system upright post which is independently arranged, and reduce the cost.

In order to achieve the above purpose, the technical scheme of the utility model is that the ecological cover for internally installing the overhead line system comprises a basic steel frame for covering a railway track, roof boards arranged at the top of the basic steel frame and sound absorption side wall boards arranged at two sides of the basic steel frame, wherein the roof boards are provided with ventilation openings; and a contact net is fixed on the inner side of the basic steel frame.

As one embodiment, the contact net is arranged on one side surface or two side surfaces of the basic steel frame.

As one of the implementation modes, a hanging column is fixed at the top of the basic steel frame, and the contact net is arranged on one side or two sides of the hanging column.

As one of the implementation modes, the contact net comprises a cantilever structure and a contact net wire hung on the cantilever structure, and the cantilever structure is fixed on the side face of the basic steel frame or the hanging column.

As one of the implementation modes, the cantilever structure comprises a flat cantilever, an inclined cantilever, a cantilever supporting rod for connecting the flat cantilever and the inclined cantilever, a positioning pipe arranged on the inclined cantilever and a positioner arranged on the positioning pipe, wherein the flat cantilever and the inclined cantilever are both fixed on the basic steel frame or the hanging post, and the flat cantilever is connected with the positioning pipe through an inclined inhaul cable.

As one of the implementation modes, the sound absorption side wall plate comprises a first sound absorption plate, a sound insulation plate and a second sound absorption plate which are sequentially arranged from bottom to top.

As one of the implementation modes, the basic steel frame comprises a plurality of steel beams and a plurality of steel columns arranged on two sides, two ends of each steel beam are respectively connected with the steel columns on two sides of the steel beams, and the contact net is fixed on the steel beams or the steel columns.

As one of the implementation modes, the foundation steel frame further comprises a plurality of purlines arranged between the adjacent steel beams and between the adjacent steel columns, and two ends of each purline are respectively connected with the steel beams or the steel columns on two sides of each purline.

As one of the implementation modes, the steel column is provided with column foot bottom plates, and the column foot bottom plates on two sides of the foundation steel frame are respectively connected with connecting pieces on the installation foundations on two sides of the railway track.

As one embodiment, the roof panel is provided with a photovoltaic member.

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, the railway track, the railway vehicle and the contact net cover are combined through the ecological cover, so that the railway is isolated from the surrounding environment, and the problems of noise pollution, tail gas pollution, dust pollution and the like of the railway are effectively solved;

(2) According to the utility model, the overhead line system is fixed on the ecological cover, and the overhead line system upright post which is independently arranged is omitted, so that the construction cost is reduced, and the interference of the installation of the overhead line system on the sight line and the environment can be avoided;

(3) The ventilation opening is arranged on the roof board at the top of the ecological cover, so that heat generated during the running of the train in the ecological cover can be timely dissipated, and meanwhile, wind pressure generated during the running of the train in the ecological cover is timely relieved;

(4) The steel beam and steel column joint, the steel beam and purline joint, the steel column and purline joint and the steel column and mounting foundation joint are simple in structure, high in strength and good in stability of the ecological cover.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view (single line) of a railway ecological cover with an internal contact net installed on a embankment structure according to an embodiment of the present utility model;

Fig. 2 is a schematic diagram (double lines) of a railway ecological cover with an internal contact net installed on a embankment structure according to an embodiment of the present utility model;

Fig. 3 is a schematic diagram (single line) of a railway ecological cover with an internal contact net installed on a bridge structure according to an embodiment of the present utility model;

fig. 4 is a schematic diagram (double lines) of a railway ecological cover with an internal contact net installed on a bridge structure according to an embodiment of the present utility model;

Fig. 5 is a schematic partial view of a railway ecological cover with an overhead line system installed inside, according to an embodiment of the present utility model;

FIG. 6 is a node diagram of a steel beam and a steel column according to an embodiment of the present utility model;

FIG. 7 is a view A-A of FIG. 6;

FIG. 8 is a node diagram of a steel column and purline provided by an embodiment of the present utility model;

FIG. 9 is a view B-B of FIG. 8;

FIG. 10 is a view C-C of FIG. 8;

FIG. 11 is a node diagram of a steel beam and purline according to an embodiment of the present utility model;

FIG. 12 is a D-D view of FIG. 11;

FIG. 13 is a node diagram of a steel column and an installation foundation provided by an embodiment of the present utility model;

FIG. 14 is an E-E view of FIG. 13;

FIG. 15 is a view F-F of FIG. 13;

fig. 16 is a longitudinal elevation view of the railway ecological cover internally provided with the overhead line system according to the embodiment of the utility model;

Fig. 17 is a top view of a railway ecological cover with an internal contact net installed, provided by an embodiment of the utility model;

FIG. 18 is a node diagram of a photovoltaic member and roof panel provided by an embodiment of the present utility model;

FIG. 19 is a G-G view of FIG. 18;

In the figure: 1. a base steel frame; 101. a steel beam; 102. a steel column; 103. purlin; 104. a connecting plate; 105. stiffening plates; 106. a common bolt; 107. a first splice splint; 108. a second splice splint; 109. a third splice splint; 110. a high-strength bolt; 111. a column foot bottom plate; 112. stiffening ribs; 2. roof boarding; 201. a vent; 3. sound absorbing side wall panels; 301. a first sound absorbing panel; 302. a sound insulation board; 303. a second sound absorbing panel; 4. installing a foundation; 401. a embankment structure; 402. digging a pile; 403. bridge structure; 404. edge beams; 405. an anchor bolt; 406. a bolt backing plate; 407. micro-expansive fine stone concrete; 5. a photovoltaic member; 501. a frame; 502. a photovoltaic panel; 503. a keel; 504. a pressing plate; 505. a fixing member; 506. a fixing frame; 507. a first clamping plate; 508. a second clamping plate; 509. a fixing plate; 6. contact net; 601. contacting a net wire; 602. a wrist arm; 603. an inclined wrist arm; 604. a wrist support bar; 605. a positioning tube; 606. a positioner; 607. stay cables; 608. a hanging column; 609. and (5) connecting bolts.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second" may include one or more such features, either explicitly or implicitly; in the description of the utility model, unless otherwise indicated, the meaning of "a number" is two or more.

As shown in fig. 1-4, the embodiment provides an ecological cover for internally installing a contact net, which comprises a basic steel frame 1 for covering a railway track, roof boards 2 arranged at the top of the basic steel frame 1, and sound absorption side wall boards 3 arranged at two sides of the basic steel frame 1, wherein ventilation openings 201 are arranged on the roof boards 2; and the contact net 6 is fixed on the inner side of the basic steel frame 1. According to the embodiment, the railway track, the railway vehicle and the contact net 6 can be covered by the ecological cover, so that the railway is isolated from the surrounding environment, and the problems of noise pollution, tail gas pollution, dust pollution and the like of the railway are effectively solved; the overhead line system 6 is fixed in the ecological cover, so that independent overhead line system 6 upright posts are omitted, the width of the embankment structure or the bridge structure is reduced, the construction cost is reduced, and interference of installation of the overhead line system 6 on sight and environment can be avoided; meanwhile, the ventilation openings 201 are formed in the roof board 2, so that heat generated during running of the train in the ecological cover can be timely dissipated, wind pressure generated during running of the train in the ecological cover is timely relieved, and the requirements of heat dissipation and pressure relief during running of the train in the ecological cover are met.

The ecological cover of the embodiment can be used for single-track railways and double-track or multi-track railways.

As an embodiment, for a single-track railway provided on a embankment structure or a bridge structure, one side of the foundation steel frame 1 is provided with the overhead line system 6; for the double-track railway arranged on the embankment structure or the bridge structure, the contact net 6 is arranged on both sides of the foundation steel frame 1.

As another embodiment, for a single-track railway arranged on a embankment structure or a bridge structure, a hanging column 608 is fixed on one side of the top of the foundation steel frame 1, and the overhead line system 6 is arranged on one side of the hanging column 608; for the double-track railway arranged on the embankment structure or the bridge structure, a hanging column 608 is fixed in the middle of the top of the foundation steel frame 1, and the contact net 6 is arranged on two sides of the hanging column 608.

As shown in fig. 5, the contact net 6 includes a cantilever structure and a contact net wire 601 hung on the cantilever structure, and the cantilever structure is fixed on a side surface of the foundation steel frame 1 or on the hanging post 608. Further, the cantilever structure includes a flat cantilever 602, an inclined cantilever 603, a cantilever support bar 604, a positioning pipe 605 and a positioner 606, one end of the flat cantilever 602 and one end of the inclined cantilever 603 are respectively connected with the steel beam 101 and the steel column 102 through a connecting bolt 609, or respectively connected with the hanging column 608 through a connecting bolt 609, the other end of the flat cantilever 602 is connected with the other end of the inclined cantilever 603, and the flat cantilever 602 is also connected with the inclined cantilever 603 through a cantilever support bar 604; one end of the positioning pipe 605 is connected with the inclined cantilever 603, the other end of the positioning pipe 605 is connected with the flat cantilever 602 through a stay cable 607, a positioner 606 is arranged on the positioning pipe 605, and the contact net wire 601 is arranged on the positioner 606. Specifically, the ends of the cantilever 603 and the cantilever 602 are fixed with a fixing plate 509, the fixing plate 509 is connected with the girder 101 and the flange plate of the steel column 102 through a fixing piece 505, or the fixing plate 509 is connected with a hanging column 608 through a fixing piece 505; an end plate is fixed to an end of the suspension post 608, and the end plate is connected to a flange plate of the steel beam 101 by a fixing member 505.

Further, the sound-absorbing side wall panel 3 includes a first sound-absorbing panel 301, a sound-insulating panel 302, and a second sound-absorbing panel 303 sequentially disposed from bottom to top. The first sound absorbing plate 301, the sound insulating plate 302 and the second sound absorbing plate 303 can respectively absorb the noise at the wheel hub, the diffuse reflection noise and the secondary diffuse reflection noise, and have good sound insulation and noise reduction effects. Optimally, the sound insulation board 302 is a transparent sound insulation board, and meets the lighting requirement in the ecological cover.

In the above embodiment, the foundation steel frame 1 includes a plurality of steel beams 101 and a plurality of steel columns 102 disposed on two sides, and two ends of each steel beam 101 are respectively connected with the steel columns 102 on two sides thereof. The foundation steel frame 1 extends along the line direction, a plurality of steel beams 101 are equidistantly arranged at intervals along the line direction, a plurality of steel columns 102 on each side of the line are equidistantly arranged at intervals along the line direction, and the steel beams 101 are in one-to-one correspondence with the steel columns 102 on the two sides of the steel columns.

Further, the foundation steel frame 1 further includes a plurality of purlines 103 disposed between the adjacent steel beams 101 and a plurality of purlines 103 disposed between the adjacent steel columns 102, and two ends of each purline 103 are respectively connected with the steel beams 101 or the steel columns 102 on two sides thereof. The purlines 103 are arranged at intervals along the outline direction of the foundation steel frame 1, the purlines 103, the steel columns 102 and the steel beams 101 form a grid structure, and stability of the foundation steel frame 1 is guaranteed.

As an embodiment, the steel columns 102 and the purlins 103 are all H-shaped steel, and the purlins are C-shaped steel. The steel beam 101, the steel column 102 and the purline 103 of the embodiment can also be made of steel materials with other section types.

According to the optimized embodiment, the steel beam 101 and the steel column 102 are connected with the connecting plates 104, and the connecting plates 104 are connected with the purlines 103. Specifically, as shown in fig. 8-12, a web plate 104 is welded on the web plate of the steel beam 101 and the web plate of the steel column 102 at a position corresponding to the purline 103, three sides of one end of the connecting plate 104 are respectively connected with two flange plates and the web plate, and the other end is connected with the web plate of the purline 103 through a common bolt 106.

Further, a stiffening plate 105 is further connected to the steel column 102, and the stiffening plate 105 is connected to the connecting plate 104. Specifically, as shown in fig. 10, stiffening plates 105 are positioned on the side of the connection plates 104 facing away from the purlins 103 to strengthen the support of the purlins 103.

In optimizing the implementation, the steel beam 101 is connected with the steel column 102 through a splicing clamping plate. Specifically, as shown in fig. 6-7, the flange plate of the steel beam 101 is connected with the outer side of the flange plate of the steel column 102 through a first splice clamping plate 107, the inner side is connected with a second splice clamping plate 108, that is, the upper end of the first splice clamping plate 107, the flange plate of the steel beam 101 and the upper end of the second splice clamping plate 108 are connected through a high-strength bolt 110, and the lower end of the second splice clamping plate 108, the flange plate of the steel column 102 and the lower end of the second splice clamping plate 108 are connected through a high-strength bolt 110; the web of the steel beam 101 is connected with two sides of the web of the steel column 102 through third splicing clamping plates 109 respectively, namely, the upper ends of the third splicing clamping plates 109 on two sides are connected with the web of the steel beam 101 through high-strength bolts 110, and the lower ends of the third splicing clamping plates 109 on two sides are connected with the web of the steel column 102 through high-strength bolts 110.

Further, a column foot bottom plate 111 is arranged at the bottom of the steel column 102, and the column foot bottom plates 111 at two sides of the foundation steel frame 1 are respectively connected with connecting pieces on the installation foundations 4 at two sides of the railway track.

As an embodiment, the railway track is arranged on the embankment structure 401, at this time, the installation foundation 4 is arranged on the hole digging pile 402, the hole digging pile 402 is arranged on the embankment structure 401, and the connecting piece is pre-buried on the hole digging pile 402.

As another embodiment, the railway track is disposed on the bridge structure 403, at this time, the installation foundation 4 is disposed on the side beam 404, the side beam 404 is disposed on the bridge structure 403, and the connecting piece is pre-buried on the side beam 404.

As shown in fig. 13-15, the connecting piece comprises a plurality of anchor bolts 405, the column base bottom plate 111 is provided with a plurality of holes corresponding to the anchor bolts 405 one by one, the bottoms of the anchor bolts 405 are pre-embedded in the installation foundation 4, and the tops of the anchor bolts penetrate through the corresponding holes and are fixed through nuts, so that the steel column 102 is fixed on the installation foundation 4. Specifically, the top of the installation foundation 4 is provided with micro-expansion fine stone concrete 407, and a bolt backing plate 406 can be arranged between the nut and the micro-expansion fine stone concrete 407. Optimally, the bottoms of the anchor bolts 405 are in a hook shape, so that the assembly property of the anchor bolts 405 and the embankment structure 401/bridge structure 403 is improved.

Optimally, stiffening ribs 112 are arranged at the two ends of the two flange plates of the steel column 102 and at the positions, close to the two ends, of the outer sides of the two flange plates, one side of each stiffening rib 112 is welded with the steel column 102, and the other side of each stiffening rib is welded with the column foot bottom plate 111, so that the connection strength between the column foot bottom plate 111 and the steel column 102 is improved.

The railway ecological cover is simple in structure and convenient to install, has a certain visual covering effect on facilities such as railway ballasted tracks, railway roadbeds and contact networks, particularly on freight railways, and can effectively shield dynamic influences of railway operation.

The above embodiment is optimized in that the roof panel 2 is provided with photovoltaic elements 5. As shown in fig. 16-19, by installing the photovoltaic component 5 on the roof board 2, the open and non-shielding environment at two sides of the railway is fully utilized, energy conservation and emission reduction are realized through photovoltaic power generation, and the safety and stability of the photovoltaic component 5 are ensured.

In optimizing the above embodiment, the roof plate 2 is provided with a protrusion, to which the photovoltaic member 5 is fixed by means of an adapter. Specifically, the roof board of this embodiment adopts the metal roofing board (such as profiled sheet) of finished product, as shown in fig. 18, the adjacent roof board 2 is bent upward and then is bent at overlap joint department to form mutually wrap up the lapped protruding part, improve the waterproof performance of overlap joint department, can provide the space for the installation of no fossil fragments of photovoltaic component 5 through this protruding part simultaneously.

Further, a fixing frame 506 is arranged in the protruding portion, and the fixing frame 506 is connected with the base steel frame 1. As shown in fig. 18-19, the bottom of the mount 506 is secured to the purlin 103 and the top may provide support for the protrusions of the roof panel 2.

In the above embodiment, the adaptor comprises a first clamping plate 507 and a second clamping plate 508 which are oppositely arranged, wherein a clamping groove is formed by matching the lower part of the first clamping plate 507 and the lower part of the second clamping plate 508 so as to clamp the convex part, and the upper part of the first clamping plate 507 and the upper part of the second clamping plate 508 are connected through a fixing piece 505; the top surface of the first clamping plate 507 is provided with a fixing plate 509 extending horizontally, and the fixing plate 509 is connected to the keel 503 by a fixing member 505, so as to fix the keel 503 to the roof board 2.

In the embodiment, the photovoltaic component 5 can be directly fixed on the adapter in a keel-free installation mode; the photovoltaic component 5 can also adopt a mounting mode with keels, as an implementation mode, the keels 503 are fixed on the adapter, and the photovoltaic component 5 is mounted on the keels 503. The photovoltaic members 5 of the present embodiment may be divided into a plurality of units, each unit including a plurality of photovoltaic members 5 arranged in a plurality of rows and columns, and the area corresponding to each unit being provided with a plurality of keels 503 arranged at equal intervals on the roof panel 2.

The photovoltaic member 5 of the present embodiment may take the form of a frame-less or a frame-framed form. As an embodiment, the photovoltaic component 5 includes a frame 501 and a photovoltaic panel 502 mounted in the frame 501, and the frame 501 is connected to the keel 503 through a connector.

In further elaborating on the above embodiment, the connecting piece includes a pressing plate 504 and a fixing piece 505, the pressing plate 504 is connected with the keel 503 through the fixing piece 505, and at least one side of the pressing plate 504 presses against the frame 501. As shown in fig. 18, both sides of the pressing plate 504 between the connected photovoltaic members 5 are pressed against the rims 501 of the photovoltaic members 5 on both sides, respectively, and one side of the pressing plate 504 at the end is pressed against the rims 501 of the photovoltaic members 5 on one side thereof, thereby fixing the plurality of photovoltaic members 5 on the keels 503.

The fixing pieces 505 of the embodiment can be made of bolts, the connecting pieces, the adapter pieces and the keels 503 can be made of aluminum alloy materials, and the fixing pieces are simple in structure, light in weight, easy to assemble and disassemble, small in load to increase the basic steel frame 1 and beneficial to structural safety. The roof panel 2 may be a profiled steel sheet.

The construction method of the railway ecological cover internally provided with the contact net in the embodiment comprises the following steps:

1) The construction of hole digging piles 402 is carried out on the slope tops of the embankment structures 401, installation foundations are made, and foundation bolts 405 are reserved on pile tops; the bridge section utilizes the boundary beam 404 of the bridge structure 403 to pre-embed foundation bolts 405;

2) Finishing processing of the steel columns 102 and the steel beams 101, splicing the steel columns 102 and the steel beams 101 to form integral hoisting of a portal steel frame or sectional installation of the steel columns 102 and the steel beams 101, firmly connecting a column foot bottom plate 111 of the steel column 102 with a embankment structure 401 or a bridge structure 403 through foundation bolts 405, and finishing fixing of a foundation steel frame 1;

3) The contact net 6 is arranged on the inner side of the basic steel frame 1, and the cantilever structure is connected with the side of the steel column 102/steel beam 101 through a connecting bolt 609; or a hanging column 608 is arranged at the top of the inside of the foundation steel frame 1 to mount the contact net 6, and the hanging column 608 is connected with the bottom of the steel beam 101 through a connecting bolt 609;

4) The purline 103 is arranged on the side face of the foundation steel frame 1, and the sound absorption side wall plate 3 is arranged;

5) Purlines 103 are installed on the top surface of the foundation steel frame 1, and roof boards 2, photovoltaic members 5 and the like are installed.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. An ecological cover of internally mounted contact net, its characterized in that: the railway track covering device comprises a basic steel frame for covering a railway track, roof boards arranged at the top of the basic steel frame and sound absorption side wall boards arranged at two sides of the basic steel frame, wherein ventilation openings are formed in the roof boards; and a contact net is fixed on the inner side of the basic steel frame.

2. An internally mounted catenary ecological cover according to claim 1, wherein: the contact net is arranged on one side surface or two side surfaces of the basic steel frame.

3. An internally mounted catenary ecological cover according to claim 1, wherein: the overhead crane is characterized in that a hanging column is fixed at the top of the foundation steel frame, and one side or two sides of the hanging column are provided with the overhead crane.

4. An internally mounted catenary ecological cover according to claim 2 or 3, wherein: the contact net comprises a cantilever structure and a contact net wire hung on the cantilever structure, and the cantilever structure is fixed on the side face of the basic steel frame or the hanging column.

5. The internally mounted catenary ecological cover according to claim 4, wherein: the cantilever structure comprises a flat cantilever, an inclined cantilever, a cantilever supporting rod for connecting the flat cantilever and the inclined cantilever, a positioning pipe arranged on the inclined cantilever and a positioner arranged on the positioning pipe, wherein the flat cantilever and the inclined cantilever are both fixed on the basic steel frame or the hanging post, and the flat cantilever is connected with the positioning pipe through an inclined inhaul cable.

6. An internally mounted catenary ecological cover according to claim 1, wherein: the sound absorption side wall plate comprises a first sound absorption plate, a sound insulation plate and a second sound absorption plate which are sequentially arranged from bottom to top.

7. An internally mounted catenary ecological cover according to claim 1, wherein: the foundation steel frame comprises a plurality of steel beams and a plurality of steel columns arranged on two sides, two ends of each steel beam are respectively connected with the steel columns on two sides of the steel beams, and the contact net is fixed on the steel beams or the steel columns.

8. The internally mounted catenary ecological cover according to claim 7, wherein: the foundation steel frame further comprises a plurality of purlines arranged between the adjacent steel beams and between the adjacent steel columns, and two ends of each purline are respectively connected with the steel beams or the steel columns on two sides of each purline.

9. The internally mounted catenary ecological cover according to claim 7, wherein: the steel column is provided with a column foot bottom plate, and the column foot bottom plates on two sides of the foundation steel frame are respectively connected with connecting pieces on the installation foundation on two sides of the railway track.

10. An internally mounted catenary ecological cover according to claim 1, wherein: the roof board is provided with a photovoltaic component.