L-shaped plate of platform door top connecting structure

Abstract

The utility model discloses a platform door top connecting structure L-shaped plate which comprises a right-angle plate body and a right-angle convex hull arranged in the transverse center of the plate body, the right-angle convex hull is located in the center of a connecting edge, and the right-angle convex hull comprises a flange extending from the center of the connecting edge to base plates on the two sides. The flange protrudes out of the surface of the right-angle adjacent face of the base plate. Flanges are arranged on the edges of the two transverse sides of the base plate and protrude out of the surfaces of the right-angle adjacent faces of the base plate. According to the top connecting structure, the L-shaped plate is high in connecting strength, stress performance is enhanced, connection is more stable, welding cracks and stress corrosion cracks are avoided, the top connecting structure is not affected by welding residual stress, a safety system is high, and damage is not prone to occurring; the thickness of the substrate is reduced, and more materials are saved.

Description

Technical Field

[0001] This utility model relates to the field of platform screen door technology, and in particular to an L-shaped plate for the top connection structure of a platform screen door. Background Technology

[0002] The platform screen door top connecting assembly is a fixed connecting medium component that connects the beams and columns, such as... Figure 1 As shown, its normal adjustment stroke is 195±40 mm (that is, the adjustment range between the center of column 3 and beam 2 is 155~235 mm), and the waist hole 9 connecting the upper L-shaped plate 1 and the lower telescopic plate 4 is the direction of adjustment.

[0003] The existing L-shaped panel connecting the top of the platform screen door is made by bending a 10mm part and welding it to a 10mm reinforcing rib 5 to form a single component. Figure 2 As shown, this area represents the region where the solid base metal undergoes significant microstructure and property changes at the weld joint on both sides of the reinforcing rib under the action of welding thermal cycling. Therefore, it is located at the interface between the weld and the base metal, where the metal is in a semi-molten state, and inclusions or substances that have dissolved and then re-precipitated result in a complex microstructure. This area typically exhibits poor properties and is prone to stress concentration.

[0004] Disadvantages of welded structures: decreased product performance, susceptibility to welding cracks, stress corrosion cracks, and the effects of residual welding stress. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model discloses an L-shaped plate for the top connection structure of a platform door, including a right-angled plate body and a right-angled protrusion located at the horizontal center of the plate body. The right-angled plate body is formed by two base plates perpendicularly connected to each other at the middle connecting edge. The right-angled protrusion is located at the center of the connecting edge. The right-angled protrusion includes a flange extending from the center of the connecting edge to the two base plates on both sides. The flange protrudes from the surface of the right-angled adjacent surfaces of the base plates. The flange is perpendicular to the connecting edge. The two horizontal edges of the base plates are provided with flanges, which protrude from the surface of the right-angled adjacent surfaces of the base plates.

[0006] Preferably, the two sides of the intersection of the connecting edge and the flange are provided with bottom edges, which are formed by the flange extending to both sides along the connecting edge.

[0007] Preferably, the end of the flange furthest from the connecting edge is located inside the opposite edge of the connecting edge on the substrate.

[0008] Preferably, the length of the flange is less than the length of the edge, the flange is connected to the connecting edge, and the end of the flange away from the connecting edge is located inside the opposite edge of the connecting edge on the substrate.

[0009] Preferably, the base plate on which the L-shaped plate connects to the telescopic plate has a waist hole.

[0010] Preferably, the thickness of the substrate is 8 cm.

[0011] The L-shaped plate at the top of the platform door of this utility model has high connection strength, enhances the load-bearing performance, makes the connection more stable, avoids welding cracks and stress corrosion cracks, is not affected by welding residual stress, has a high safety system, and is not easily damaged; the base plate is 8 cm thick, which saves materials, and is easier to process by die stamping, resulting in high production efficiency and low processing cost. Attached Figure Description

[0012] Figure 1 This is an installation diagram of the existing L-shaped plate connecting structure at the top of the platform screen door.

[0013] Figure 2 This is a schematic diagram of the connection between the L-shaped plate and the telescopic plate at the top of the existing platform door.

[0014] Figure 3 This is a schematic diagram of the connection between the L-shaped plate and the telescopic plate at the top of the platform door of this utility model.

[0015] In the diagram: 1. L-shaped plate, 2. Beam, 3. Column, 4. Expansion plate, 5. Reinforcing rib, 6. Right-angle adjacent face, 7. Flange, 8. Flanged edge, 9. Waist hole, 10. Connecting edge, 11. Base plate, 12. Opposite edge, 13. Bottom edge, 14. Edge. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] like Figure 3 As shown, this utility model discloses an L-shaped plate for the top connection structure of a platform screen door, which is stamped by a stamping die. The L-shaped plate for the top connection structure of the platform screen door includes a right-angled plate body and a right-angled protrusion located at the horizontal center of the plate body. The right-angled plate body is formed by connecting edges 10 of the base plates 11 perpendicularly connected to each other in the middle. Starting from the midpoint of the connecting edge 10, flanges 7 extend from the base plates 11 on both sides to form flanges 7 protruding from the base plates 11. The flanges 7 are perpendicular to the connecting edges 10, and the flanges 7 on both sides are connected to form a right-angled protrusion. The other end of the flange 7 is located inside the opposite edge 12 of the connecting edge 10 on the base plate 11. Bottom edges 13 are provided on both sides of the intersection of the connecting edge 10 and the flange 7. The bottom edges 13 are formed by the flanges 7 extending from the connecting edge 10 to both sides. The edges 14 on both sides of the base plate 11 in the horizontal direction are provided with flanges 8, which protrude from the surface of the right-angled adjacent surfaces 6 of the base plate 11.

[0018] The L-shaped plate of this invention features a right-angled convex bend at the center, which effectively replaces the reinforcing rib; the flanged design on both sides of the product enhances its load-bearing performance.

[0019] Traditional designs require 10mm sheet metal, while die stamping only requires 8mm sheet metal to achieve the same parameters and performance. Moreover, die stamping offers significant advantages over welding in terms of stability and production efficiency.

[0020] This utility model features an L-shaped plate as the top connecting structure for platform doors, resulting in a more stable connection. It is manufactured using die stamping, which offers greater stability compared to welding. Furthermore, it boasts significantly higher production efficiency than welding, and the die stamping process is much cheaper.

[0021] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An L-shaped plate for connecting the top of a platform screen door, characterized in that, The plate includes a right-angled plate body and a right-angled protrusion located at the center of the plate body in the lateral direction. The right-angled plate body is formed by two substrates (11) connected perpendicularly to each other at the connecting edge (10) in the middle. The right-angled protrusion is located at the center of the connecting edge (10). The right-angled protrusion includes a flange (7) extending from the center of the connecting edge (10) to the two substrates (11) on both sides. The flange (7) protrudes from the surface of the right-angled adjacent surface (6) of the substrate (11). The flange (7) is perpendicular to the connecting edge (10). The two lateral edges (14) of the substrate (11) are provided with flanges (8). The flanges (8) protrude from the surface of the right-angled adjacent surface (6) of the substrate (11).

2. The L-shaped plate of the platform door top connecting structure according to claim 1, characterized in that, The two sides of the intersection of the connecting edge (10) and the flange (7) are provided with bottom edges (13), which are formed by the flange (7) extending to both sides along the connecting edge (10).

3. The L-shaped plate of the platform door top connecting structure according to claim 1, characterized in that, The flange (7) is located on the inside of the opposite side (12) of the connecting edge (10) on the substrate (11) at one end away from the connecting edge (10).

4. The L-shaped plate of the platform door top connecting structure according to claim 1, characterized in that, The length of the flange (8) is less than the length of the edge (14). The flange (8) is connected to the connecting edge (10). The end of the flange (8) away from the connecting edge (10) is located inside the opposite side (12) of the connecting edge (10) on the substrate (11).

5. The L-shaped plate of the platform door top connecting structure according to claim 1, characterized in that, The base plate (11) on which the L-shaped plate (1) and the telescopic plate (4) are connected is provided with waist holes (9).

6. The L-shaped plate of the platform door top connecting structure according to claim 1, characterized in that, The thickness of the substrate (11) is 8 cm.

Images