Railway bridge foot plank fixing device

Abstract

The utility model relates to a railroad bridge foot plank fixing device, a foot plank comprises a support and at least two foot plank assemblies, and the foot plank assemblies are laid on the support; the walking plate assembly comprises at least two single plates, and the single plates are arranged in parallel. The fixing device comprises a grapnel assembly and a pressing strip, the grapnel assembly is connected with the support in a clamped mode, the grapnel assembly is located in a gap between the veneers, the pressing strip is arranged on the top of the grapnel assembly, the pressing strip is located on the top of the veneers, and the pressing strip is used for pressing the veneers to prevent the veneers from being separated from the support. The utility model aims to provide a fixing device for a railroad bridge foot plank. The fixing device is used for preventing a stop plank from falling off due to deviation of a support. Meanwhile, the fastening device has the advantage of being convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of railway sidewalk step boards, in particular to a railway bridge walking board fixing device. Background Art

[0002] Railway bridges are usually composed of multiple sections of beams, with expansion joints between the beams, which change with temperature. Sidewalks and brackets are set on both sides of the railway bridge. The brackets are set on both sides of the railway bridge, and the sidewalks are fixed to both sides of the bridge through the brackets.

[0003] The bracket may be offset due to the thermal expansion and contraction of the beam, which may cause the walking board to fall off. At the same time, the walking board is easily blown over by strong winds in extreme weather, such as typhoon weather. Therefore, a device for fastening the walking board is urgently needed. Utility Model Content

[0004] The utility model aims to provide a railway bridge walking board fixing device to prevent the walking board from falling off due to the deviation of the bracket.

[0005] In order to achieve the above object, the basic scheme of the utility model is as follows:

[0006] A device for fixing walking boards on railway bridges, the walking boards comprising a bracket and at least two walking board assemblies, the walking board assemblies being laid on the bracket; the walking board assemblies comprising at least two single boards, the single boards being arranged in parallel; the fixing device comprising a grab hook assembly and a pressure strip, the grab hook assembly being clamped with the bracket and the grab hook assembly being located in the gap between the single boards, the pressure strip being arranged on the top of the grab hook assembly and the pressure strip being located on the top of the single board, the pressure strip being used to press the single board to prevent the single board from detaching from the bracket.

[0007] Compared with the prior art, the railway bridge walking board fixing device of the present application has the following beneficial effects:

[0008] The railway bridge walking board fixing device of the present application includes a grab hook assembly and a pressure strip, the grab hook assembly is clamped with the bracket, and the grab hook assembly is located in the gap between the single boards, the pressure strip is arranged on the top of the grab hook assembly, and the pressure strip is located on the top of the single board, the grab hook assembly is clamped with the bracket, and the pressure strip is used to connect the claw hook assembly in the gap between the single boards in series to prevent the single board from detaching from the bracket. At the same time, the fastening device of the utility model has the advantage of easy installation.

[0009] Preferably, the grab hook assembly includes a connecting plate and two grab hooks, the two grab hooks are clamped on both sides of the bracket, the connecting plate connects the two grab hooks, and the pressure strip is connected to the top of the connecting plate.

[0010] Beneficial effect: The grab hook assembly is connected to the bracket by clamping the grab hook with the bracket.

[0011] Preferably, the grab hook is C-shaped as a whole, and the two grab hooks of the grab hook assembly are arranged facing each other; the connecting plate is respectively connected to the tops of the two grab hooks.

[0012] Beneficial effect: The connecting plate connects the two grab hooks into a whole.

[0013] Preferably, the connecting plate is rectangular as a whole, a connecting block is provided on the top of the connecting plate, and the connecting block is fixedly connected to the pressure strip.

[0014] Beneficial effects: The grab hook assembly is connected to the pressure strip through the connecting block.

[0015] Preferably, a notch is provided below the middle portion of the connecting plate.

[0016] Beneficial effect: The setting of the notch enables the pressure strip to be squeezed toward the middle through the notch when the single board is subjected to the upward force. After the two sides of the connecting plate are squeezed toward the middle, the grab hook can be further engaged with the bracket, thereby increasing the firmness of the connection between the grab hook assembly and the bracket.

[0017] Preferably, the pressure strip is in the shape of a long strip, and an upper folding portion and a lower folding portion are sequentially arranged on both sides of the pressure strip.

[0018] Beneficial effect: the arrangement of the upper folding part and the lower folding part increases the pressing force of the pressure strip on the walking board, which is beneficial to the fastening of the pressure strip to the walking board. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the beam body and the walking board provided in the embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the structure of a sidewalk tread provided in an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the partial structure of a sidewalk tread provided in an embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the disassembled structure of a sidewalk tread provided in an embodiment of the utility model;

[0023] Figure 5 for Figure 4 The enlarged schematic diagram at A in the middle;

[0024] Figure 6 A schematic diagram of the exploded structure of the grab hook assembly and the pressure strip provided in the embodiment of the utility model;

[0025] Figure 7A schematic cross-sectional view of a layering strip provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0026] The following is further described in detail through specific implementation methods:

[0027] The reference numerals in the drawings of the specification include: beam body 1, expansion joint 2, bracket 3, walking board assembly 4, single board 5, grab hook assembly 6, pressure strip 7, connecting plate 8, grab hook 9, connecting block 10, notch 11, upper folding part 12, and lower folding part 13.

[0028] As attached Figure 1 As shown, a railway bridge is usually composed of multiple sections of beams 1, and expansion joints 2 are provided between the beams 1. Walking boards are arranged on both sides of the railway bridge, and brackets 3 are erected on both sides of the railway bridge. The walking boards are fixed to both sides of the bridge through the brackets 3. The brackets 3 may be offset due to the thermal expansion and contraction of the beams 1, thereby causing the walking boards to fall off; at the same time, the walking boards are also easily affected by strong winds and detached from the brackets. Therefore, this embodiment provides a walking board fixing device to prevent the walking boards from detaching from the brackets.

[0029] As attached Figure 2-7 As shown, this embodiment shows a railway bridge walking board fixing device, the walking board includes a bracket 3 and at least two walking board assemblies 4, and the walking board assembly 4 is laid on the bracket 3. The walking board assembly 4 includes at least two single boards 5, and the single boards 5 are arranged parallel to each other. After the single boards 5 are placed between the brackets 3, there is a gap between adjacent single boards 5.

[0030] The fixing device includes a hook assembly 6 and a pressure strip 7. The hook assembly 6 is clamped with the bracket 3, and the hook assembly 6 is located in the gap between the single boards 5. The pressure strip 7 is arranged on the top of the hook assembly 6. After the pressure strip 7 is connected to the hook assembly 6, the pressure strip 7 presses the single board 5 to prevent the single board 5 from detaching from the bracket 3.

[0031] Each grab hook assembly 6 includes a connecting plate 8 and two grab hooks 9, the two grab hooks 9 are clamped on both sides of the bracket 3, the connecting plate 8 connects the two grab hooks 9, and the pressure strip 7 is connected to the top of the connecting plate 8. During assembly, after each group of grab hook assemblies 6 are installed in the gap between the single boards 5, the grab hook assemblies 6 are connected in series with the pressure strip 7. In this way, when the walking board receives an upward force, the walking board applies an upward force to the pressure strip 7, and the pressure strip 7 drives the grab hook assembly 6 upward, and the grab hook assembly 6 is blocked by the bracket 3 upward, and at the same time, the grab hook 9 is clamped more tightly with the bracket 3, thereby preventing the single board 5 from continuing to detach from the bracket 3 upward.

[0032] Specifically, the grab hook 9 is in a C-shape as a whole, and the two grab hooks 9 of the grab hook assembly 6 are arranged facing each other; the connecting plate 8 connects the tops of the two grab hooks 9 respectively. When the grab hook assembly 6 is installed, the two grab hooks 9 are connected by the connecting plate 8. Specifically, the grab hook 9 and the connecting plate 8 are riveted, so that the grab hook 9 and the connecting plate 8 can rotate relative to each other. When installing the grab hook assembly 6, the grab hook 9 is opened and inserted into the gap of the single board 5. After being inserted into the gap of the single board 5, the grab hook 9 naturally hangs down and can be connected with the bracket 3.

[0033] The connecting plate 8 is rectangular in shape as a whole, and a connecting block 10 is arranged on the top of the connecting plate 8, and the connecting block 10 is fixedly connected to the pressure strip 7. The connecting block 10 is formed by bending the protrusion on the top of the connecting plate 8. The connecting block 10 and the pressure strip 7 can be connected by bolts or other common mechanical connection methods.

[0034] In this embodiment, the grab hook assembly 6 and the pressure strip 7 are both made of metal or alloy with a certain strength.

[0035] In some embodiments, a notch 11 is provided at the lower middle of the connecting plate 8 so that when the pressure strip 7 is subjected to the upward force of the single board 5, the two sides of the connecting plate 8 can be squeezed toward the middle through the notch 11, and the two sides of the connecting plate 8 can be squeezed toward the middle so that the hook 9 can be further engaged with the bracket 3, thereby increasing the firmness of the connection between the hook assembly 6 and the bracket 3.

[0036] The pressure strip 7 is in the shape of a long strip, and the two sides thereof are sequentially provided with an upper folding portion 12 and a lower folding portion 13. The pressure strip 7 made of metal or alloy has better compression performance on the single board 5 after being bent.

[0037] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A railway bridge walking board fixing device, characterized in that: The walking board comprises a support (3) and at least two walking board assemblies (4), wherein the walking board assemblies (4) are laid on the support (3); the walking board assembly (4) comprises at least two single boards (5), wherein the single boards (5) are arranged in parallel; The fixing device comprises a grab hook assembly (6) and a pressure strip (7); the grab hook assembly (6) is clamped with the bracket (3), and the grab hook assembly (6) is located in the gap between the single boards (5); the pressure strip (7) is arranged on the top of the grab hook assembly (6), and the pressure strip (7) is located on the top of the single board (5); the pressure strip (7) is used to press the single board (5) to prevent the single board (5) from detaching from the bracket (3).

2. A railway bridge walking board fixing device according to claim 1, characterized in that: The grab hook assembly (6) comprises a connecting plate (8) and two grab hooks (9), the two grab hooks (9) are clamped on both sides of the bracket (3), the connecting plate (8) connects the two grab hooks (9), and the pressure strip (7) is connected to the top of the connecting plate (8).

3. A railway bridge walking board fixing device according to claim 2, characterized in that: The grab hook (9) is C-shaped as a whole, and the two grab hooks (9) of the grab hook assembly (6) are arranged facing each other; the connecting plate (8) is respectively connected to the tops of the two grab hooks (9).

4. A railway bridge walking board fixing device according to claim 2, characterized in that: The connecting plate (8) is rectangular in shape as a whole, and a connecting block (10) is arranged on the top of the connecting plate (8), and the connecting block (10) is fixedly connected to the pressure strip (7).

5. A railway bridge walking board fixing device according to claim 4, characterized in that: A notch (11) is provided at the lower middle portion of the connecting plate (8).

6. A railway bridge walking board fixing device according to claim 1, characterized in that: The pressure strip (7) is in the shape of a long strip, and an upper folding portion (12) and a lower folding portion (13) are sequentially arranged on both sides of the pressure strip.

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