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CN-224199742-U - Fastening device and railway pavement walking plate using same

CN224199742UCN 224199742 UCN224199742 UCN 224199742UCN-224199742-U

Abstract

The utility model relates to a fastening device and a railway pavement walking board applying the same, wherein the fastening device is used for fixing a single board to a bracket and comprises a locking assembly, the locking assembly comprises two symmetrically arranged locking brackets, the locking brackets at least comprise a locking plate and an abutting plate, the abutting plate is abutted on the lower end face of the bracket, and the two locking plates of the same locking assembly are overlapped and then locked with a pressing strip through a fastener. The utility model has the advantages that the single plate, the auxiliary plate and the bracket are clamped and fixed through the cooperation of the pressing strip and the locking assembly, the C-shaped structure of the locking assembly and the design of the reinforcing plate can effectively resist looseness caused by vibration, the adjustable bolt assembly is adopted as a fastener, the single plate or the auxiliary plate can be replaced only by disassembling the bolt during maintenance without damaging the original structure, the single plate adopts the limiting reinforced composite plate, the bottom mounting groove is matched with the locking assembly, the auxiliary plate balances stress, and the integral deformation resistance and fracture resistance are obviously improved.

Inventors

  • SHI QINGHUA
  • Cen Qiaofeng

Assignees

  • 宁波隆诚轨道交通科技股份有限公司

Dates

Publication Date
20260505
Application Date
20250523

Claims (10)

  1. 1. A fastening device is used for fixing a single board (200) to a bracket (100), and is characterized by comprising a locking assembly (400), wherein the locking assembly (400) comprises two symmetrically arranged locking brackets (410), each locking bracket (410) is at least provided with a locking plate (412) and an abutting plate (411), the abutting plate (411) abuts against the lower end face of the bracket (100), and the single board (200) is locked by the locking plate (412) through a fastener (420).
  2. 2. The fastening device of claim 1, wherein the fastener (420) is an adjustable bolt (421) assembly.
  3. 3. The fastening device according to claim 1, wherein the locking bracket (410) is further provided with a supporting plate (413), and the supporting plate (413) is obliquely connected to the same side end parts of the locking plate (412) and the abutting plate (411), so that the main body of the locking bracket (410) is in a C shape.
  4. 4. A fastening device according to claim 3, wherein the locking bracket (410) is provided with a reinforcing plate (414), the reinforcing plate (414) being formed on the support plate (413) and facing between the locking plate (412) and the abutment plate (411).
  5. 5. A railway pavement slab comprises the fastening device as claimed in claim 1 and is characterized by comprising a support (100) and at least two single plates (200) arranged on the support (100), wherein the single plates (200) are paved on the support (100) in parallel, the lower part of a locking assembly (400) is clamped on the support (100), and the upper part of the locking assembly is locked with the single plates (200) to clamp and fix the support (100) and the single plates (200).
  6. 6. The railway pavement slab according to claim 5, wherein said single slab (200) is a limit reinforced composite slab with a mounting groove (201) at the bottom, and said locking assembly (400) is capable of extending into said mounting groove (201).
  7. 7. The railway sidewalk plate according to claim 5, further comprising an auxiliary plate (300), wherein the auxiliary plate (300) is disposed at a side portion of the single plate (200) in a longitudinal direction and is located under the same molding (500) as the single plate (200).
  8. 8. The railway pavement slab according to claim 7, wherein a locking gap (b) is left between the auxiliary slab (300) and the veneer (200), and the fastener (420) is provided in the locking gap (b).
  9. 9. The railway pavement slab according to claim 7, wherein the auxiliary slab (300) is constructed in conformity with the veneer (200) and is provided with an auxiliary groove (301), and the auxiliary groove (301) and the installation groove (201) of the veneer (200) are positioned on the same straight line.
  10. 10. Railway pavement slab according to claim 9, characterized in that the bottom of the groove wall of the mounting groove (201) and the bottom of the groove wall of the auxiliary groove (301) are provided with feet (c).

Description

Fastening device and railway pavement walking plate using same Technical Field The utility model relates to the technical field of railway pavement walking plates, in particular to a railway pavement walking plate. Background Railroad bridges are typically constructed of multiple sections of beams with expansion joints between the beams that vary with temperature. The two sides of the railway bridge are provided with pavement walking plates and brackets, the brackets are erected on the two sides of the railway bridge, and the pavement walking plates are fixed on the two sides of the bridge through the brackets. The sidewalk along the railway is an important facility for ensuring the inspection and maintenance of workers, and the stability and durability of the walking board are directly related to the operation safety. Wherein the bracket may shift due to the expansion and contraction of Liang Tire, thereby causing the step plate to fall off. Meanwhile, the walking board is easy to be turned over by strong wind in extreme weather, such as typhoon weather. There is therefore a need for a device for fastening a walking board. Conventional railway pavement boards generally have a structure in which a single board is directly laid on a bracket, and are fixed by simple bolts or welding. However, the structure has the defects that the connection between the veneer and the bracket is easy to loosen due to vibration generated by train operation in a railway environment, the veneer is likely to shift or even fall off after long-term use, potential safety hazards exist, the original structure is required to be cut and destroyed during maintenance in a traditional fixing mode (such as welding), the maintenance cost is high, the efficiency is low, the contact area between the veneer and the bracket is limited, deformation or fracture is easy to occur when the stress is concentrated, and the service life is influenced. Thus, there is a need for a railroad pavement slab that is more securely attached, more convenient to maintain, and has higher structural strength. The Chinese patent of the utility model with the bulletin number of CN222139752U discloses a railway bridge walking board fixing device, wherein the walking board comprises a bracket and at least two walking board components, the walking board components are paved on the bracket, the walking board components comprise at least two single boards which are arranged in parallel, the fixing device comprises a grappling hook component and a pressing strip, the grappling hook component is clamped with the bracket, the grappling hook component is positioned in a gap between the single boards, the pressing strip is arranged at the top of the grappling hook component, the pressing strip is positioned at the top of the single boards, and the pressing strip is used for pressing the single boards to prevent the single boards from being separated from the bracket. The utility model aims to provide a railway bridge walking board fixing device which is used for preventing the situation that a walking board falls off due to the deviation of a bracket. Meanwhile, the fastening device has the advantage of convenience in installation. However, in this fixing device, the grapple has a thin plate structure, and the contact surface between the grapple and the connecting plate is nearly in line contact, which causes a problem of stability, and the connection to the walking plate is unstable. Disclosure of utility model In order to solve the above problems in the prior art, the present utility model provides a fastening device and a railway pavement slab using the same. The above problems of the present utility model are solved by the following technical solutions: A fastening device is used for fixing a single plate on a support and comprises a locking assembly, the locking assembly comprises two symmetrically arranged locking supports, each locking support is at least provided with a locking plate and an abutting plate, the abutting plates are abutted to the lower end face of the support, and the two locking plates of the same locking assembly are overlapped and then locked with the single plate through a fastener. The technical scheme is further characterized in that the fastening piece is an adjustable bolt component. The technical scheme is that the locking support is further provided with a supporting plate which is obliquely connected to the same side end parts of the locking plate and the abutting plate, so that the main body of the locking support is C-shaped. The technical scheme is further characterized in that the locking support is provided with a reinforcing plate, and the reinforcing plate is formed on the supporting plate and faces between the locking plate and the abutting plate. The utility model also discloses a railway sidewalk plate, which comprises the fastening device, a bracket and at least two single plates arranged on the bracket, wherein the single plates ar