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CN-224227570-U - A insulating buffer backing plate under iron backing plate for track fastener

CN224227570UCN 224227570 UCN224227570 UCN 224227570UCN-224227570-U

Abstract

The utility model discloses an iron pad lower insulation buffer pad for a track fastener, which comprises a pad, a protective sleeve and a top, wherein a plurality of deformation grooves which are arranged up and down are formed in the side surface of the pad, the protective sleeve is arranged in a runway shape, bolt notches are formed in the edges of the pad, the protective sleeve is inserted into the bolt notches, the top is fixedly connected with the pad, the side surface of the top is arranged in a corrugated shape, the deformation grooves in the side surface of the pad leave a space for the pad to deform under pressure, the edge of the pad can be prevented from being excessively stretched, the edge of the pad is prevented from cracking, the inner wall of the bolt notch is protected by the protective sleeve, the bolt is inserted into the bolt notch and cannot rub against the bolt notch, the bolt notch is prevented from excessively deforming, the bolt notch is prevented from being damaged under pressure, the grooves enable the pad to have deformation spaces everywhere, the buffer effect is good, and the pad is prevented from cracking due to extrusion.

Inventors

  • WANG BINREN
  • ZHOU LING

Assignees

  • 苏州市丽苏塑胶科技有限公司

Dates

Publication Date
20260512
Application Date
20250606

Claims (7)

  1. 1. An iron underlaying insulating cushioning mat for a track fastener, comprising: The device comprises a base plate (1), wherein a plurality of deformation grooves (6) which are vertically distributed are formed in the side surface of the base plate (1); The protection sleeve (7) is arranged in a runway shape, a bolt notch (5) is formed in the edge of the base plate (1), and the protection sleeve (7) is inserted into the bolt notch (5); The plug (4), plug (4) set up a plurality of and with backing plate (1) fixed connection, plug (4) side is the wave form setting.
  2. 2. The lower insulation buffer cushion plate for the iron cushion plate of the track fastener according to claim 1, wherein the upper end of the protective sleeve (7) is provided with a limit ring (3), and the limit ring (3) is flush with the cushion plate (1).
  3. 3. The insulating buffer pad under an iron pad for a track fastener according to claim 1, wherein the thickness of the pad (1) and the depth of a bolt notch (5) are 6-12mm, and the length of a protective sleeve (7) is 4-8mm.
  4. 4. An insulating cushioning pad under an iron pad for a track fastener as set forth in claim 1, wherein said pad (1) laterally encloses a guard ring (2), the guard ring (2) being half the thickness of the pad (1).
  5. 5. The insulating buffer pad under an iron pad for a track fastener according to claim 1, wherein the lower surface of the pad (1) is provided with anti-skid patterns (9).
  6. 6. The insulating buffer pad under an iron pad for a track fastener according to claim 1, wherein a plurality of grooves (8) are formed in the surface of the pad (1), and the plug (4) is smaller than the grooves (8) in size and is located inside the grooves (8).
  7. 7. An insulating cushioning pad under an iron pad for a track fastener as set forth in claim 4, wherein said guard ring (2) has a thickness of 2-3.5mm.

Description

A insulating buffer backing plate under iron backing plate for track fastener Technical Field The utility model relates to the technical field of subway fastener equipment, in particular to an insulating buffer cushion plate under an iron cushion plate for a rail fastener. Background The existing insulating buffer cushion plate under the iron cushion plate has low strength due to structural design, short service life and large maintenance workload. In the related art, in order to solve the problems, a scheme of an insulating buffer backing plate (bulletin No. CN 215629048U) under an iron backing plate of a subway fastener is provided, a reinforcing edge is arranged, the insulating buffer backing plate is prevented from warping and deforming under pressure, nylon and rubber are adopted as materials of a backing plate body, the thickness of the backing plate body is controlled to be 6mm-12mm, the static stiffness is controlled to be 700kN/mm-900kN/mm, the friction coefficient between the insulating buffer backing plate and the iron backing plate is not less than 0.5, and the fastener system is ensured not to slide. However, the bolt notch on the pad body is easy to deform when being extruded, the bolt notch is easy to damage, when the pad body is compressed, the side edge of the pad body can be outwards protruded, the pressure of a train passing through repeatedly presses the pad body, and the side edge of the pad body can be split. Disclosure of utility model The utility model aims to provide an insulating buffer cushion plate under an iron cushion plate for a track fastener, which solves the problems in the prior art. The utility model provides a technical scheme that an insulating buffer cushion plate under an iron cushion plate for a track fastener comprises a cushion plate, wherein a plurality of deformation grooves which are arranged up and down are arranged on the side surface of the cushion plate, and the deformation grooves enable deformation spaces to exist when the side edges of the cushion plate are compressed, so that edge cracking of the cushion plate is prevented; the protective sleeve is arranged in a runway shape, the edge of the cushion plate is provided with a bolt notch, the protective sleeve is inserted into the bolt notch, the shape of the bolt notch can be maintained, and the bolt notch is prevented from deforming when the cushion plate is extruded; The top, the top sets up a plurality of and with backing plate fixed connection, the top side is the wave form setting, and the top supports and cushions the part of backing plate top, and the backing plate buffering is effectual. Further, the upper end of the protective sleeve is provided with a limit ring, the limit ring is flush with the base plate, the limit ring prevents the protective sleeve from moving downwards, and the protective sleeve is ensured to stably support the notch of the protective bolt. Further, the thickness of the backing plate and the depth of the bolt notch are 6-12mm, the static rigidity is 800 kN/mm+/-100 kN/mm, and the length of the protective sleeve is 4-8mm. Furthermore, the side surface of the base plate surrounds the protective ring, the height of the protective ring is half of the thickness of the base plate, excessive deformation of the base plate can be limited, and the base plate can be deformed. Further, the lower surface of the base plate is provided with anti-skid patterns, the base plate is not easy to slide when being laid, the surface of the base plate is provided with a plurality of grooves, the size of the plug is smaller than that of the grooves and is positioned inside the grooves, and the base plate deforms towards the grooves to disperse the pressure born by the base plate. Compared with the prior art, the utility model has the beneficial effects that: (1) The deformation groove on the side surface of the base plate reserves a space for the base plate to deform under pressure, so that the edge of the base plate is not easy to excessively extend, and the problem of edge cracking is avoided. (2) The bolt notch inner wall uses the lag to support the protection, and the bolt is inserted inside the bolt notch and can not rub the bolt notch, and the lag supports the bolt notch and can avoid the bolt notch excessive deformation, prevents that the pressure loss problem from appearing in the bolt notch. (3) The grooves enable deformation spaces to exist at all positions of the base plate, so that not only is the buffering effect good, but also the base plate is prevented from being cracked due to extrusion, and the plug improves the buffering capacity of the base plate. (4) The anti-slip patterns on the bottom surface of the base plate can prevent the base plate from sliding, and are beneficial to limiting the sliding of the rail fastener. Drawings FIG. 1 is a top view of the present utility model; FIG. 2 is a bottom view of the present utility model; FIG. 3 is a cross-sectional view of the present util