Grid plate fixing mechanism and grid plate clamp

Abstract

The utility model provides a kind of grating plate fixing mechanism, the upper plate edge of vertical board extends and overlaps the horizontal plate on the top surface of grating plate, and the lower plate edge of vertical board is welded on the steel beam of bearing grating plate.The utility model also provides a kind of grating plate clamp, a pair of bolt holes are respectively arranged on the two overhanging edges of U-shaped support, and the adjacent side plate edges of two grating plates are located in the clamping area enclosed by bolt and support.The horizontal plate of grating plate fixing mechanism can limit grating plate in the direction perpendicular to beam surface, and the bottom edge of its vertical plate is welded on steel beam, with high connection strength and stability.The grating plate clamp can connect the adjacent side plate edges of two grating plates together, and limit the relative position of two grating side plates.

Description

Technical Field

[0001] This utility model relates to the field of fiberglass grating technology, specifically to a grating plate fixing mechanism and a grating plate clamp. Background Technology

[0002] When laying walkways or steps in industrial platforms, equipment platforms, and other similar settings, fiberglass grating is the preferred solution due to its superior properties such as lightweight, slip resistance, high strength, and ease of maintenance. The steel beams supporting the fiberglass grating are mostly I-beams or channel steel. The grating spans across two parallel steel beams, with at least one pair of edges overlapping each of the two parallel beams. Fixtures such as clamps are installed on the supporting edges of the grating to connect it to the steel beams or adjacent grating panels.

[0003] In practical use, fiberglass gratings may sometimes deflect excessively due to factors such as excessive support spacing or long-term loads. Inaccurate installation can also lead to uneven gaps between the grating and steel beams, between gratings themselves, or uneven grating support surfaces. In severe cases, misalignment, loosening, and warping of the gratings can directly affect pedestrian safety and even cause accidents.

[0004] To ensure the stability of fiberglass grating connections, the patent disclosed in "A Stable Fiberglass Grating Connection" (CN212534894U) provides a first connecting sleeve 3 at the top of the connection between adjacent first grid 1 and second grid 2, and a second connecting sleeve 6 at the bottom of the connection. The first connecting sleeve 3 and the second connecting sleeve 6 are connected by the cooperation of a connecting groove 4 and a connecting block 5. In the above solution, the connecting groove 4 and the connecting block 5 are limited by friction between first connecting teeth 7 and first connecting teeth 8, respectively. However, for grating panels with high safety requirements, the connection strength is somewhat lacking.

[0005] The patent disclosed in the patent titled "A Spliced ​​Fiberglass Grating" (CN214995576U) describes a grating body 4 movably connected to the inner cavity of an outer frame body 1, with a grating mesh 5 fixedly connected to the inner cavity of the grating body 4. While this grating design offers strong stability, each grating panel requires an independent outer frame body 1 for coordination. In scenarios where large-area walkways and stairs need to be laid on engineering platforms, its installation and maintenance are cumbersome and consume a significant amount of materials. Utility Model Content

[0006] The purpose of this utility model is to provide a grating plate fixing mechanism to ensure a stable connection between the grating plate and the steel beam below it.

[0007] Another objective of this invention is to provide a grating clamp that stably connects two adjacent grating plates.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A grating fixing mechanism includes a vertical plate located on the side or outer corner of the grating, with a horizontal plate extending from the upper edge of the vertical plate and overlapping the top surface of the grating, and the lower edge of the vertical plate welded to a steel beam supporting the grating.

[0010] A grating clamp includes a U-shaped support frame with a pair of bolt holes on each of the two overhanging sides of the support frame. The adjacent side plates of the two grating frames are located within the clamping area enclosed by the bolts passing through the overhanging sides and the support frame body.

[0011] This invention features folded plates on the sides or corners of a grating panel. The horizontal plates of these plates can limit the grating panel's position in a direction perpendicular to the beam surface, while the bottom edges of the vertical plates are welded to the steel beam, resulting in high connection strength and stability. The grating panel clamp of this invention can connect adjacent side plates of two grating panels together, limiting the relative position of the two grating side plates. The grating panel clamp, in conjunction with the aforementioned grating panel fixing mechanism, achieves stable connections between the grating and the steel beam, and between grating panels themselves. Attached Figure Description

[0012] Figure 1 A schematic diagram of the grating fixing mechanism;

[0013] Figure 2 Schematic diagram of grating clamp

[0014] Figure 3 A side view of the grating clamp holding the grating plate. Detailed Implementation

[0015] See Figure 1 The grating fixing mechanism shown includes a vertical plate 10 located on the side or outer corner of grating A. A horizontal plate 20 extends from the upper edge of the vertical plate 10, overlapping the top surface of grating A. The lower edge of the vertical plate 10 is welded to the steel beam B supporting grating A. In practical application, first observe the state of the fiberglass grating on site, identify grating A with raised or loose edges, and weld a fixing plate to its side or outer corner. Since fiberglass cannot be welded to steel, the horizontal plate 20 for fixing the plate only needs to overlap the top surface of grating A, and the lower edge of the vertical plate 10 is welded to the steel beam B supporting grating A to ensure a stable connection. In the above scheme, the horizontal plate 20 limits the degree of freedom of grating A in the vertical direction. The longer the edge of the horizontal plate 20 extends towards grating A, or the larger the area of ​​the horizontal plate 20 overlapping grating A, the more secure its restraint, and the grating A will no longer loosen or raise when people walk on it. The vertical plate 10 is fixed by welding, which has a high connection strength, ensuring the safety of personnel walking and avoiding safety accidents.

[0016] To improve the strength of the vertical plate 10, a reinforcing plate 30 is attached to the outer surface of the vertical plate 10. The reinforcing plate 30 is equivalent to increasing the thickness of the vertical plate 10, thus greatly enhancing its bending resistance.

[0017] A more specific solution is that the upper edge of the reinforcing plate 30 is welded to the outer surface of the vertical plate 10, and the lower edge of the reinforcing plate 30 is welded to the steel beam B. The welding of the reinforcing plate 30 to the steel beam B further strengthens the connection between the vertical plate 10 and the steel beam B.

[0018] Preferably, the folding plate is L-shaped, with the surface of its vertical plate 10 perpendicular to the bearing surface of the steel beam B, and a gap is reserved between the surface of the vertical plate 10 and the side of the grating plate A. Since the linear thermal expansion coefficient of fiberglass is much larger than that of steel (approximately 2-3 times that of steel), if no expansion or contraction space is reserved when installing and fixing the folding plate, the expansion of the grating plate A during temperature changes will be constrained by the vertical plate 10, generating huge internal stress that causes deformation of the grating plate A and also affects the connection strength between the vertical plate 10 and the steel beam B. The design of reserving a gap between the surface of the vertical plate 10 and the side of the grating plate A avoids the aforementioned disadvantages.

[0019] To facilitate welding and ensure the strength of the fixed folding plate, the vertical plate 10, the horizontal plate 20, and the reinforcing plate 30 are all made of steel.

[0020] See Figures 2-3 The grating clamp shown includes a U-shaped bracket 40. Each of the two overhanging sides 41 of the bracket 40 has a pair of bolt holes. The adjacent side plates A1 of the two grating plates A are located in the clamping area enclosed by the bolts 50 that pass through the overhanging sides 41 and the body of the bracket 40.

[0021] At the joint where the two overhanging grating plates A meet, the lower part of the joint is no longer supported by the steel beam B, making this area more prone to warping and misalignment. The fixed folding plate, lacking welding points, is also unsuitable. Therefore, a grating plate clamp is needed to connect the two adjacent overhanging grating plates A together. The U-shaped bracket 40 of the grating plate clamp and the bolt 50 penetrating the overhanging edge 41 form a clamping area. The adjacent side plates A1 of the two grating plates A are confined within this clamping area, maintaining the posture of the grating plates A. The grating plate clamp has a simple structure, and the bolt 50 connection is easy to operate and use.

[0022] To further restrict the posture of the adjacent side plate edge A1 of the grating plate A within the clamping area, the bracket 40 body is constricted. A folded edge 411, bent towards the clamping area, is provided in the middle of one overhanging edge 41 of the bracket 40, with the bolt 50 and the side plate edge A1 located on opposite sides of the folded edge 411. (Refer to...) Figure 2 , 3In the illustrated embodiment, the overhanging edge 41 has a height difference on the stepped surfaces on both sides of the folded edge 411, and the distance between the two bolt holes of the overhanging edge 41 is less than the edge height of the side plate A1. In actual use, the overhanging ends of the two overhanging edges 41 are elastic to facilitate the insertion of the two side plate edges A1 from the opening. The inner side of the folded edge 411 restricts the translation and rotation of the side plate edge A1, preventing the connection between the two grid plates A from becoming loose.

Claims

1. A grating plate fixing mechanism, characterized in that: It includes a vertical plate (10) located on the side or outside the corner of the grating (A), with a horizontal plate (20) extending from the upper edge of the vertical plate (10) and overlapping the top surface of the grating (A), and the lower edge of the vertical plate (10) welded to the steel beam (B) that supports the grating (A).

2. The grating fixing mechanism according to claim 1, characterized in that: A reinforcing plate (30) is attached to the outer surface of the vertical plate (10).

3. The grating fixing mechanism according to claim 2, characterized in that: The upper edge of the reinforcing plate (30) is welded to the outer surface of the vertical plate (10), and the lower edge of the reinforcing plate (30) is welded to the steel beam (B).

4. The grid plate fixing mechanism according to claim 1, characterized by: The folded plate is L-shaped, with the surface of its vertical plate (10) perpendicular to the bearing surface of the steel beam (B), and a gap is reserved between the surface of the vertical plate (10) and the side of the grating plate (A).

5. The grid plate fixing mechanism according to claim 2, characterized by: The vertical plate (10), horizontal plate (20) and reinforcing plate (30) are all made of steel.

6. A lattice panel clamp characterized by: The bracket (40) is U-shaped in shape. Each of the two overhanging sides (41) of the bracket (40) has a pair of bolt holes. The adjacent side plates (A1) of the two grid plates (A) are located in the clamping area enclosed by the bolt (50) that passes through the overhanging side (41) and the body of the bracket (40).

7. The grid plate clamp of claim 6, wherein: The body of the support (40) is constricted.

8. The grid plate clamp of claim 7, wherein: The bracket (40) has a folded edge (411) in the middle of one side of the cantilever edge (41) that bends toward the clamping area. The bolt (50) and the side plate edge (A1) are located on both sides of the folded edge (411).

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