CN217678355U

CN217678355U - Be used for subway track vibration/noise reduction structure

Info

Publication number: CN217678355U
Application number: CN202220281637.2U
Authority: CN
Inventors: 徐昆
Original assignee: Shanghai Shendiantong Rail Transit Technology Co ltd
Current assignee: Shanghai Shendiantong Rail Transit Technology Co ltd
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2022-10-28
Anticipated expiration: 2032-02-11

Abstract

The utility model relates to a subway track technical field discloses a be used for subway track to damp and fall structure of making an uproar, including the foundation unit with lay the track unit in the foundation unit upper end, through laying micropore rubber backing plate in the concrete groove hole, and set up the concrete subbase layer that the elasticity railway ballast pad was laid to the upper end in the concrete groove hole, micropore rubber backing plate can play fine shock attenuation effect, simultaneously laying of elasticity railway ballast pad when playing the shock attenuation effect, it has the structure of tiny pore space, can give fine effect of realizing making an uproar; the end steel sheet forms the integral type structure with last steel sheet clamp rubber tie plate B in the centre for the track fastener can cushion the absorption to vibrations after the installation rail, and fixed mounting rubber tie plate C in the middle of the up end of last steel sheet, makes the contact between rail and the last steel sheet become elastic contact, has further improved the shock attenuation effect.

Description

Be used for subway track vibration/noise reduction structure

Technical Field

The utility model relates to a subway track technical field specifically is a be used for subway track vibration/noise reduction structure.

Background

In subway rail transit, a certain amount of impact energy is generated in the contact process of wheels and rails, and the influence of generated vibration and noise on the surrounding environment and buildings is inevitable. The damping and noise reduction of the subway rail are related to the life of surrounding residents and the stability of surrounding buildings.

The damping and noise reduction effect of the subway rail in the prior art is poor, vibration cannot be well absorbed, and the absorbing and noise reduction effect of noise generated by subway running is poor.

To the problem, the utility model provides a be used for subway track vibration/noise reduction structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for subway track vibration/noise reduction structure, include the ground unit and lay the track unit in the ground unit upper end, realization vibration/noise reduction's that can be fine effect to the problem in the background art has been solved.

In order to achieve the above purpose, the utility model provides a following technical scheme: a shock-absorbing and noise-reducing structure for subway rails comprises a foundation unit and a rail unit paved at the upper end of the foundation unit, wherein the foundation unit comprises a reinforcing groove pit part and a shock-absorbing ground base part arranged in the reinforcing groove pit part;

the track unit comprises a cross sleeper member connected to the damping foundation portion and track fasteners fixedly installed at two ends of the upper end face of the cross sleeper member, and rails are installed on the track fasteners.

Preferably, the reinforcing groove pit part comprises a concrete groove pit and a microporous rubber liner plate paved in the concrete groove pit.

Preferably, the shock absorption foundation part comprises a concrete subbase layer and an elastic ballast mat paved at the upper end of the concrete subbase layer.

Preferably, the transverse pillow piece comprises a pillow block and rubber cushion plates A fixedly installed at two ends of the upper end face of the pillow block.

Preferably, the rail fastener comprises a connecting seat plate and a fixing bolt installed on the connecting seat plate in a threaded manner, and the connecting fastener is fixedly welded on the upper end face of the connecting seat plate.

Preferably, the connection seat plate comprises a bottom steel plate and a rubber base plate B fixedly installed on the upper end face of the bottom steel plate, an upper steel plate is fixedly arranged on the upper end face of the rubber base plate B, and the bottom steel plate and the upper steel plate clamp the rubber base plate B in the middle to form an integrated structure.

Preferably, a rubber pad plate C is fixedly arranged in the middle of the upper end face of the upper steel plate.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model provides a pair of a be used for subway track vibration/noise reduction structure is through laying micropore rubber backing plate in the concrete groove hole to lay the concrete subbase setting of elasticity railway ballast pad with the upper end in the concrete groove hole, micropore rubber backing plate can play fine shock attenuation effect, laying of elasticity railway ballast pad is when playing the shock attenuation effect simultaneously, and it has the structure in tiny hole, can give fine realization the effect of making an uproar of falling.

2. The utility model provides a pair of be used for subway track vibration/noise reduction structure, end steel sheet and last steel sheet press from both sides rubber tie plate B and form the integral type structure in the centre, make the track fastener behind the installation rail, can cushion the absorption to vibrations, and fixed mounting rubber tie plate C in the middle of the up end of last steel sheet, make the contact between rail and the last steel sheet become elastic contact, the shock attenuation effect has further been improved, simultaneously at pillow block up end both ends installation rubber tie plate A, make the vibrations between connection bedplate and the pillow block also can obtain the buffering absorption.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the foundation unit of the present invention;

fig. 3 is a schematic structural view of the track unit of the present invention;

fig. 4 is a schematic view of the track fastener structure of the present invention.

In the figure: 1. a foundation unit; 11. reinforcing the groove pit part; 111. concrete pits; 112. a microporous rubber backing plate; 12. a shock-absorbing ground base; 121. a concrete sub-base layer; 122. an elastic ballast mat; 2. a track unit; 21. a cross sleeper member; 211. a pillow block; 212. a rubber base plate A; 22. a rail fastener; 221. connecting the seat plate; 2211. a bottom steel plate; 2212. a rubber base plate B; 2213. steel plate feeding; 22131. a rubber backing plate C; 222. fixing the bolt; 223. connecting a buckle head; 23. a rail.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, a shock-absorbing and noise-reducing structure for subway rails includes a foundation unit 1 and a rail unit 2 laid on the upper end of the foundation unit 1, wherein the foundation unit 1 includes a reinforcing groove pit portion 11 and a shock-absorbing ground base portion 12 disposed in the reinforcing groove pit portion 11.

The track unit 2 includes a tie member 21 attached to the shock-absorbing base 12 and track clips 22 fixedly attached to both ends of an upper end surface of the tie member 21, and rails 23 are attached to the track clips 22.

Referring to fig. 2, the reinforcing groove pit portion 11 includes a concrete groove pit 111 and a microporous rubber pad 112 laid in the concrete groove pit 111, the shock absorption foundation portion 12 includes a concrete underlayer 121 and an elastic ballast pad 122 laid on the upper end of the concrete underlayer 121, the microporous rubber pad 112 is laid in the concrete groove pit 111, the concrete underlayer 121 with the elastic ballast pad 122 laid on the upper end is disposed in the concrete groove pit 111, the microporous rubber pad 112 can achieve a good shock absorption effect, and meanwhile, the elastic ballast pad 122 is laid while achieving a shock absorption effect, and has a structure with fine pores, so that a good noise reduction effect can be achieved.

Referring to fig. 3 to 4, the cross pillow 21 includes a pillow block 211 and rubber pads a212 fixedly installed at both ends of an upper end surface of the pillow block 211.

The rail clip 22 includes a connection base plate 221 and a fixing bolt 222 screwed on the connection base plate 221, and a connection clip 223 is fixedly welded to an upper end surface of the connection base plate 221.

The connection seat plate 221 includes a bottom steel plate 2211 and a rubber pad B2212 fixedly installed on the upper end surface of the bottom steel plate 2211, an upper steel plate 2213 is fixedly installed on the upper end surface of the rubber pad B2212, the bottom steel plate 2211 and the upper steel plate 2213 clamp the rubber pad B2212 in the middle to form an integrated structure, the rubber pad C22131 is fixedly installed in the middle of the upper end surface of the upper steel plate 2213, the bottom steel plate 2211 and the upper steel plate 2213 clamp the rubber pad B2212 in the middle to form an integrated structure, so that the rail fastener 22 can absorb the vibration after being installed with the rail 23, and the rubber pad C22131 is fixedly installed in the middle of the upper end surface of the upper steel plate 2213, so that the contact between the rail 23 and the upper steel plate 2213 is changed into elastic contact, thereby further improving the damping effect, and the rubber pads a212 are installed on both ends of the upper end surface of the pillow block 211, so that the vibration between the connection seat plate 221 and the pillow block 211 can be absorbed.

In summary, the following steps: the utility model provides a be used for subway track shock attenuation and noise reduction structure, including foundation unit 1 and lay the track unit 2 in foundation unit 1 upper end, through laying micropore rubber backing plate 112 in concrete groove hole 111, and set up the concrete underlayment 121 that the elasticity railway ballast pad 122 was laid to the upper end in concrete groove hole 111, micropore rubber backing plate 112 can play fine shock attenuation effect, simultaneously laying of elasticity railway ballast pad 122 when playing the shock attenuation effect, it has the structure of tiny pore, can give fine effect of realizing making an uproar reduction; the bottom steel plate 2211 and the upper steel plate 2213 clamp the rubber base plate B2212 in the middle to form an integrated structure, so that the rail fastener 22 can absorb shock in a buffering mode after the rail 23 is installed, the rubber base plate C22131 is fixedly installed in the middle of the upper end face of the upper steel plate 2213, contact between the rail 23 and the upper steel plate 2213 is changed into elastic contact, the shock absorption effect is further improved, meanwhile, the rubber base plates A212 are installed at two ends of the upper end face of the pillow block 211, and shock between the connecting seat plate 221 and the pillow block 211 can be absorbed in a buffering mode.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a be used for subway track vibration/noise reduction structure, includes foundation unit (1) and lays track unit (2) in foundation unit (1) upper end, its characterized in that: the foundation unit (1) comprises a reinforcing groove pit part (11) and a shock-absorbing ground base part (12) arranged in the reinforcing groove pit part (11);

the track unit (2) comprises a cross sleeper member (21) connected to the shock-absorbing base (12) and track fasteners (22) fixedly installed at two ends of the upper end face of the cross sleeper member (21), and rails (23) are installed on the track fasteners (22).

2. The damping and noise-reducing structure for the subway rail according to claim 1, wherein: the reinforcing groove pit part (11) comprises a concrete groove pit (111) and a microporous rubber liner plate (112) paved in the concrete groove pit (111).

3. The damping and noise-reducing structure for the subway rail according to claim 1, wherein: the shock-absorbing foundation (12) comprises a concrete subbase layer (121) and an elastic ballast mat (122) paved at the upper end of the concrete subbase layer (121).

4. The damping and noise-reducing structure for the subway rail according to claim 1, wherein: the transverse pillow member (21) comprises a pillow block (211) and rubber cushion plates A (212) fixedly arranged at two ends of the upper end face of the pillow block (211).

5. The damping and noise-reducing structure for the subway rail according to claim 1, wherein: the rail fastener (22) comprises a connecting seat plate (221) and a fixing bolt (222) which is installed on the connecting seat plate (221) in a threaded mode, and a connecting buckle head (223) is fixedly welded on the upper end face of the connecting seat plate (221).

6. The vibration and noise reduction structure for the subway rail as claimed in claim 5, wherein: the connecting seat plate (221) comprises a bottom steel plate (2211) and a rubber base plate B (2212) fixedly installed on the upper end face of the bottom steel plate (2211), an upper steel plate (2213) is fixedly arranged on the upper end face of the rubber base plate B (2212), and the rubber base plate B (2212) is clamped between the bottom steel plate (2211) and the upper steel plate (2213) to form an integrated structure.

7. The damping and noise-reducing structure for the subway rail according to claim 6, wherein: and a rubber pad plate C (22131) is fixedly arranged in the middle of the upper end surface of the upper steel plate (2213).