Fastening device and railway sidewalk foot plank applying same

Abstract

The utility model relates to a fastening device and a railway sidewalk foot plank applying the fastening device, the fastening device is used for fixing a single plate on a support, the fastening device comprises a locking assembly, the locking assembly comprises two locking supports which are symmetrically arranged, each locking support is at least provided with a locking plate and an abutting plate, the abutting plates abut against the lower end faces of the supports, and the locking plates abut against the lower end faces of the supports. The two locking plates of the same locking assembly are overlapped and then locked with the pressing strip through a fastener. The beneficial effects of the utility model are that through the cooperation of the pressing strip and the locking assembly, the single plate, the auxiliary plate and the support are clamped and fixed, and the C-shaped structure and the reinforcing plate design of the locking assembly can effectively resist loosening caused by vibration; the adjustable bolt assembly is used as a fastener, so that the single plate or the auxiliary plate can be replaced only by disassembling the bolt during maintenance, and the original structure does not need to be damaged; the single plate adopts the limiting reinforced composite plate, the bottom mounting groove is matched with the locking assembly, the auxiliary plate is balanced in stress, and the overall deformation resistance and fracture resistance are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of railway pedestrian walkway treads, and in particular to a railway pedestrian walkway tread. Background Technology

[0002] Railway bridges are typically composed of multiple beam segments, with expansion joints between the beams. These joints vary in size depending on temperature. Pedestrian walkways and supports are installed on both sides of the railway bridge; the supports are erected on both sides of the bridge, and the pedestrian walkways are fixed to the sides of the bridge via these supports.

[0003] The pedestrian walkways along railway lines are important facilities to ensure the safety of workers during inspections and maintenance. The stability and durability of the walkways are directly related to work safety.

[0004] The support structure may shift due to the thermal expansion and contraction of the beam, potentially causing the pedestrian walkway slabs to detach. Furthermore, the walkway slabs are susceptible to being overturned by strong winds during extreme weather conditions, such as typhoons. Therefore, a device for securing the pedestrian walkway slabs is urgently needed.

[0005] Traditional railway pedestrian walkways typically use a structure where single-layer pavers are directly laid on supports and secured with simple bolts or welding. However, this type of structure has the following drawbacks: vibrations from train operation in the railway environment can easily cause the connection between the pavers and the supports to loosen, potentially leading to pavers shifting or even falling off after long-term use, posing a safety hazard; traditional fixing methods (such as welding) require cutting and damaging the original structure for maintenance, resulting in high maintenance costs and low efficiency; the limited contact area between the pavers and the supports makes them prone to deformation or breakage under concentrated stress, affecting their service life.

[0006] Therefore, there is an urgent need for a railway pedestrian walkway that is more securely connected, easier to maintain, and has higher structural strength.

[0007] Chinese utility model patent CN222139752U discloses a fixing device for railway bridge walkways. The walkway includes a support frame and at least two walkway assemblies, which are laid on the support frame. Each walkway assembly includes at least two individual planks arranged in parallel. The fixing device includes a hook assembly and a pressure strip. The hook assembly engages with the support frame and is located in the gap between the individual planks. The pressure strip is located on top of the hook assembly and on top of the individual planks, used to press down on the individual planks to prevent them from detaching from the support frame. The purpose of this utility model is to provide a fixing device for railway bridge walkways to prevent the walkways from falling off due to support frame displacement. Furthermore, the fixing device of this utility model has the advantage of convenient installation.

[0008] However, in this fixing device, the hook is a thin plate structure, and the contact surface between it and components such as the connecting plate is close to line contact, which has its own stability problem, resulting in an unstable connection to the walking board. Utility Model Content

[0009] In order to solve the above-mentioned problems in the prior art, the present invention provides a fastening device and a railway pedestrian walkway using the fastening device.

[0010] The above-mentioned problems of this utility model are solved by the following technical solution:

[0011] A fastening device for fixing a single panel to a bracket includes a locking assembly. The locking assembly includes two symmetrically arranged locking brackets, each having at least a locking plate and an abutment plate. The abutment plate abuts against the lower end surface of the bracket. The two locking plates of the same locking assembly are stacked and locked to the single panel by fasteners.

[0012] A further provision of the above technical solution is that the fastener is an adjustable bolt assembly.

[0013] A further provision of the above technical solution is that the locking bracket is also provided with a support plate, which is inclinedly connected to the same side end of the locking plate and the abutment plate, so that the main body of the locking bracket is C-shaped.

[0014] A further provision of the above technical solution is that a reinforcing plate is provided on the locking bracket, the reinforcing plate is formed on the support plate and faces between the locking plate and the abutment plate.

[0015] This utility model also discloses a railway pedestrian walkway tread, which includes the above-mentioned fastening device, a bracket and at least two single boards disposed on the bracket, the single boards being laid parallel on the bracket; the lower part of the locking assembly is clamped to the bracket, and the upper part is locked to the single board, clamping and fixing the bracket and the single board.

[0016] A further provision of the above technical solution is that the single plate is a limiting reinforced composite material plate with a mounting groove at the bottom, and the locking assembly can extend into the mounting groove.

[0017] A further provision of the above technical solution is that it also includes an auxiliary plate, which is located on the side of the single board along its length and below the same pressure strip as the single board.

[0018] A further provision of the above technical solution is that a locking gap is provided between the auxiliary plate and the single plate, and the fastener is located within the locking gap.

[0019] A further provision of the above technical solution is that the auxiliary plate has the same structure as the single plate, is provided with an auxiliary groove, and the auxiliary groove and the mounting groove of the single plate are located on the same straight line.

[0020] A further provision of the above technical solution is that: both the bottom of the mounting groove and the bottom of the auxiliary groove are provided with support feet.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. The single panel, auxiliary panel and bracket are clamped and fixed by the cooperation of the pressure strip and locking assembly, and the C-shaped structure and reinforcing plate design of the locking assembly can effectively resist loosening caused by vibration;

[0023] 2. Adjustable bolt assemblies are used as fasteners, allowing for easy replacement of single or auxiliary plates during maintenance by simply removing the bolts, without damaging the original structure;

[0024] 3. The single panel adopts a limiting and reinforced composite panel, with a bottom mounting groove and locking components working together. The auxiliary plate balances the force, and the support feet disperse the pressure, significantly improving the overall resistance to deformation and fracture. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the locking assembly.

[0026] Figure 2 A schematic diagram of the overall structure for mounting the locking bracket and single plate.

[0027] Figure 3 This is a schematic diagram of the locking bracket.

[0028] Figure 4 This is an exploded view of the locking assembly and the single board.

[0029] Figure 5 This is a cross-sectional structural diagram of the locking assembly and the single board in the locked state.

[0030] Figure 6 for Figure 3 Enlarged structural diagram of part A in the middle.

[0031] The attached diagram is labeled: 100, bracket;

[0032] 200. Single board; 201. Mounting slot;

[0033] 300, Auxiliary plate; 301, Auxiliary slot;

[0034] 400. Locking assembly; 410. Locking bracket; 411. Abutment plate; 412. Locking plate; 413. Support plate; 414. Reinforcing plate; 420. Fastener; 421. Bolt; 422. Locking nut;

[0035] 500, molding strip;

[0036] a. Clamping space; b. Locking gap; c. Support legs. Detailed Implementation

[0037] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0038] like Figure 1-6 As shown in the following embodiments, a fastening device and a railway pedestrian walkway using the fastening device are disclosed.

[0039] Example 1

[0040] A fastening device for fixing a single panel 200 to a bracket 100 includes a locking assembly 400. The locking assembly 400 includes two symmetrically arranged locking brackets 410. Each locking bracket 410 has at least a locking plate 412 and an abutment plate 411. The abutment plate 411 abuts against the lower end surface of the bracket 100. The two locking plates 412 of the same locking assembly 400 are stacked and locked to the single panel 200 by fasteners 420.

[0041] Specifically, refer to Figure 1 As shown, the locking assembly 400 includes two symmetrically arranged locking brackets 410, and the locking brackets 410 are integrally formed structures; the locking brackets 410 have at least a locking plate 412 and an abutment plate 411 arranged in parallel and vertically, the abutment plate 411 is used to abut against the lower end surface of the bracket 100, at least one end surface of the bracket 100 is pressed upward, the locking plate 412 is located above and is arranged above the single plate 200, and the single plate 200 and the locking plate 412 are locked by fasteners 420.

[0042] Based on the above configuration, the locking bracket 410 clamps the single plate 200 and the bracket 100 that need to be fastened onto the locking plate 412 and the abutment plate 411, and then the single plate 200 and the locking plate 412 are locked together by the fastener 420.

[0043] Furthermore, due to the locking plate 412 and the pressure strip 500 above the single plate 200, the bracket 100 and the single plate 200 are clamped between the pressure strip 500 and the abutment plate 411.

[0044] Specifically, in this embodiment, to adjust the locking tightness between the fastener 420 and the pressure strip 500, the fastener 420 is configured as an adjustable structure, which includes a bolt 421 that penetrates the locking plate 412 and the pressure strip 500, and at least one locking nut 422 is provided on the bolt 421. The bolt 421 is provided to penetrate from the lower direction of the two locking plates 412, and the locking nut 422 is fitted onto the bolt 421 from the top of the pressure strip, thereby pressing and locking the pressure strip and the locking plate 412 together.

[0045] In this embodiment, to ensure the connection between the two locks, two locking nuts 422 are provided, one of which is located above the two stacked locking plates 412, so that the two locking brackets 410 are fixed to each other to form a whole locking assembly 400.

[0046] In addition, in this embodiment, to ensure the locking effect, the bolt 421 can penetrate through the single plate 200 and then the locking nut 422 can be tightened above the single plate 200.

[0047] In other embodiments, to ensure the consistency of the single board 200, a pressure strip 500 can be provided to cooperate with the locking assembly 400. The pressure strip 500 is placed on the upper surface of the single board 200, and the fastener 400 is locked with the pressure strip 500, thereby clamping the single board 200 between the locking plate 412 and the pressure strip 500. See the specific reference below. Figure 2 and Figure 4 As shown.

[0048] In this embodiment, please refer to the specific details. Figure 3 As shown, to increase the support strength of the locking bracket 410, the locking bracket 410 is configured as a C-shape, and a support plate 413 is provided at the same end of the locking plate 412 and the abutment plate 411. The support plate 413 is set in an inclined state so that when the locking bracket 410 supports the single plate 200, the support point on the locking plate 412 forms a trapezoidal or triangular support angle, thereby increasing the support strength of the locking bracket 410.

[0049] Furthermore, in this embodiment, two symmetrical support plates 413 are provided in a locking assembly 400 to form an isosceles trapezoidal support shape, which further enhances the support force and strength of the locking assembly 400 on the single plate 200.

[0050] Preferably, in order to ensure the support stability of the locking assembly 400, in this embodiment the support plate 413 is inclined with its upper end toward the center of the locking assembly 400, that is, the trapezoid formed is an isosceles trapezoid with the bottom line longer than the top line.

[0051] In this embodiment, a reinforcing plate 414 is provided on the locking bracket 410, and the reinforcing plate 414 is formed on the end face of the support plate 413, facing the space between the locking plate 412 and the abutment plate 411.

[0052] Preferably, a clamping space a is provided between the lower end of the reinforcing plate 414 and the abutment plate 411, and the height of the clamping space a is not less than the thickness of the bracket 100.

[0053] Specific reference Figure 4 Based on the above configuration, when pressure is applied to the single plate 200, the locking plate 412 is pressed downwards. At the same time, the upper part of the support plate 413 deforms and bends, causing the reinforcing plate 414 to move downwards. Due to the presence of the reinforcing plate 414, its bottom abuts against the end face of the bracket 100, thereby exerting a reaction force on the support plate 413, preventing the locking plate 412 from continuing to press downwards, and avoiding excessive deformation of the locking bracket 410, which could lead to damage or breakage.

[0054] Example 2

[0055] This embodiment provides a railway pedestrian walkway paving board, including the fastening device described in Embodiment 1, comprising a support 100 and at least two single panels 200 disposed on the support 100, the single panels 200 being laid parallel to each other on the support 100; two supports 100 are provided, located below the two sides of the single panels 200 along the length direction, providing support for the two sides of the single panels 200; the two single panels 200 are arranged in the width direction and are closely attached. Multiple single panels 200 are laid side by side on the support 100 and fixed to the support 100 by the fastening device.

[0056] In this embodiment, a pressure strip 500 is provided on the top of the single panel 200 for auxiliary support. See details... Figure 2 As shown, the pressure strip 500 is disposed on the top of the single panel 200 along the width direction, and the width of the pressure strip 500 is sufficient to cover at least the top portion of the single panel 200 near the outer end. The lower part of the locking assembly 400 abuts and clamps against the bracket 100, and the upper part is fixed to the pressure strip 500, thereby clamping and fixing the single panel 200 and the bracket 100.

[0057] In this embodiment, the single plate 200 is a limiting and reinforcing composite material plate with a mounting groove 201 at the bottom. The fiber-reinforced composite material is a composite material formed by winding, molding, or pultrusion processes using limiting and reinforcing materials, matrix materials, and fillers. The matrix, as the continuous phase, plays a role in bonding and transferring loads; the reinforcement, as the discontinuous phase, improves the strength, stiffness, and durability of the material. Matrix types include epoxy resin, phenolic resin, unsaturated polyester resin, etc., and reinforcing materials include glass limiting materials, carbon fibers, and characteristic ceramic fibers, etc. Different combinations of matrix and reinforcement can be selected according to performance objectives to achieve optimal performance requirements.

[0058] In order to achieve the support and locking of the locking component 400 on the single board 200, and at the same time ensure that the installation position of the locking component 400 on the single board 200 is fixed, in this embodiment, an installation groove 201 extending through the length direction is provided at the bottom of the single board 200, and multiple installation grooves 201 are provided along the width direction of the single board 200, so that any number of locking components 400 can be installed and locked.

[0059] The width of the mounting groove 201 is not less than the width of the locking bracket 410 of the locking assembly 400, and the locking bracket 410 can be inserted into the mounting groove 201.

[0060] To ensure the stability of the pressure strip 500, this embodiment also includes an auxiliary plate 300. The auxiliary plate 300 and the single plate 200 are arranged parallel and flat, located on the side of the single plate 200 in the length direction, and located below the same pressure strip 500 as the single plate 200.

[0061] The single plate 200 and the auxiliary plate 300 are located on both sides of the width direction of the pressure strip 500. When the fastener 420 locks the pressure strip 500, the single plate 200 and the auxiliary plate 300 support the bottom sides of the pressure strip 500 respectively, thereby ensuring the balance of the pressure strip 500.

[0062] Preferred, refer to Figure 1 As shown, in this embodiment, a locking gap b is left between the auxiliary plate 300 and the single plate 200, and the fastener 420 is located between the locking gap b.

[0063] Specific reference Figure 5 As shown, the two locking brackets 410 of the locking assembly 400 are installed from the side of the single plate 200 and the side of the auxiliary plate 300, respectively. The outer locking bracket 410 clamps the outer side of the bracket 100 and the auxiliary plate 300, and the inner locking bracket 410 clamps the inner side of the bracket 100 and the single plate 200, thereby fixing the bracket 100, the single plate 200 and the auxiliary plate 300 together to ensure the locking effect.

[0064] In order to enable the locking bracket 410 to be installed with the auxiliary plate 300, the auxiliary plate 300 in this embodiment has the same structure as the single plate 200, and is provided with an auxiliary groove 301 with the same width as the mounting groove 201, and the auxiliary groove 301 and the mounting groove 201 are arranged on the same straight line.

[0065] This configuration allows the two locking brackets 410 of the integrated locking assembly 400 to be placed into the mounting groove 201 and the auxiliary groove 301 respectively, ensuring the stability of the locking assembly 400.

[0066] To ensure the optimal placement of the single board 200 and auxiliary board 300 on the bracket 100, please refer to the following: Figure 6 As shown, in this embodiment, a support leg c is provided at the bottom of the single plate 200, and the support leg c is a protruding part provided at the bottom of the groove wall on both sides of the mounting groove 201, so that the horizontal area of ​​the support leg c is greater than the width of the groove wall, thereby increasing the contact area between the single plate 200 and the bracket 100, so as to increase its standing stability; similarly, a support leg c with the same structural position is also provided on the auxiliary plate 300.

[0067] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A fastening device for fixing a single panel (200) to a bracket (100), characterized in that: The device includes a locking assembly (400), which includes two symmetrically arranged locking brackets (410). Each locking bracket (410) has at least a locking plate (412) and an abutment plate (411). The abutment plate (411) abuts against the lower end face of the bracket (100). The locking plate (412) locks the single plate (200) in place by fasteners (420).

2. The fastening device according to claim 1, characterized in that: The fastener (420) is an adjustable bolt (421) assembly.

3. The fastening device according to claim 1, characterized in that: The locking bracket (410) is also provided with a support plate (413), which is inclinedly connected to the same side end of the locking plate (412) and the abutment plate (411) so that the main body of the locking bracket (410) is C-shaped.

4. The fastening device according to claim 3, characterized in that: The locking bracket (410) is provided with a reinforcing plate (414), which is formed on the support plate (413) and faces between the locking plate (412) and the abutment plate (411).

5. A railway pedestrian walkway tread, comprising the fastening device as described in claim 1, characterized in that: It includes a bracket (100) and at least two single plates (200) disposed on the bracket (100), the single plates (200) being laid parallel to the bracket (100); the lower part of the locking assembly (400) is clamped onto the bracket (100), and the upper part is locked to the single plate (200), thereby clamping and fixing the bracket (100) and the single plate (200).

6. The railway pedestrian walkway paving according to claim 5, characterized in that: The single plate (200) is a limiting reinforced composite material plate with a mounting groove (201) at the bottom, and the locking assembly (400) can extend into the mounting groove (201).

7. The railway pedestrian walkway paving according to claim 5, characterized in that: It also includes an auxiliary plate (300), which is located on the side of the single plate (200) along its length and is located below the same pressure strip (500) as the single plate (200).

8. The railway pedestrian walkway paving according to claim 7, characterized in that: A locking gap (b) is provided between the auxiliary plate (300) and the single plate (200), and the fastener (420) is provided in the locking gap (b).

9. The railway pedestrian walkway paving according to claim 7, characterized in that: The auxiliary plate (300) has the same structure as the single plate (200), and is provided with an auxiliary groove (301). The auxiliary groove (301) and the mounting groove (201) of the single plate (200) are located on the same straight line.

10. The railway pedestrian walkway paving according to claim 9, characterized in that: Both the bottom of the mounting groove (201) and the bottom of the auxiliary groove (301) are provided with support feet (c).

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